Battery devices, battery housings and electrical equipment

Abstract

This application discloses a battery device, a battery housing, and an electrical device. The battery device includes a battery cell and a battery housing. The battery housing includes at least: a housing body with a receiving space for accommodating the battery cell; and a mounting assembly including a mounting component, a reinforcing component, and a sleeve. The mounting component is connected to the side of the housing body facing away from the receiving space. The reinforcing component is disposed on one side of the mounting component along a first direction. The sleeve passes through the mounting component and the reinforcing component, and the orthographic projections of the mounting component and the reinforcing component onto a reference plane in the first direction do not overlap with the orthographic projection of the sleeve onto the reference plane in the first direction. The first direction is parallel to the axial direction of the sleeve. By placing the reinforcing component along the first direction on one side of the mounting component, this application not only enhances the structural strength of the mounting component but also disperses stress, thereby reducing the risk of deformation and breakage of the mounting component and improving the reliability of the battery device.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device, battery housing, and electrical equipment. Background Technology

[0002] With the development of battery technology, battery devices are being applied to more and more fields, and are gradually replacing traditional fossil energy in areas such as vehicle power.

[0003] In related technologies, mounting components are usually installed on the battery box body to install sleeves and connect to external components through the sleeves. In actual use scenarios, the sleeves and mounting components need to jointly bear the load of the external components, and the stress borne by the mounting components is concentrated in the area near the sleeves, which can easily lead to the mounting components deforming or breaking. Utility Model Content

[0004] In view of the above problems, this application provides a battery device, a battery housing, and electrical equipment, which can reduce the risk of deformation and breakage of the mounting components, thereby improving the reliability of the battery device.

[0005] In a first aspect, this application provides a battery device, which includes a battery cell and a battery housing. The battery housing includes at least: a housing body having a receiving space for accommodating the battery cell; and a mounting assembly including a mounting component, a reinforcing component, and a sleeve. The mounting component is connected to the side of the housing body facing away from the receiving space, the reinforcing component is disposed on one side of the mounting component along a first direction, and the sleeve passes through the mounting component and the reinforcing component. The orthographic projections of the mounting component and the reinforcing component toward the first direction onto a reference plane do not overlap with the orthographic projection of the sleeve toward the first direction onto the reference plane. The first direction is parallel to the axial direction of the sleeve. By placing the reinforcing component along the first direction on one side of the mounting component and inserting the sleeve through the mounting component and the reinforcing component, the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane. On the one hand, the reinforcement component not only enhances the structural strength of the mounting component and improves its tensile and deformation resistance, but also shares the load of external components with the mounting component and the sleeve, dispersing stress and reducing stress concentration in the area of ​​the mounting component near the sleeve. This reduces the risk of deformation and breakage of the mounting component, thereby improving the reliability of the battery device. On the other hand, by ensuring that the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane, interference between the sleeve and the mounting component and the reinforcing component along its axial direction can be reduced. This allows the mounting component and the reinforcing component to be compatible with sleeves of different axial dimensions, thereby improving the adaptability and compatibility of the battery housing with the sleeve.

[0006] In some embodiments, the mounting assembly includes a first mounting plate and a second mounting plate, which are stacked and connected to each other along a first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall, and the second mounting plate is connected to the side wall. The reinforcing assembly includes a first reinforcing plate, which is disposed on one side of the first mounting plate. The axial direction of the sleeve is perpendicular to the bottom wall. By disposing the first reinforcing plate on one side of the first mounting plate, not only can the structural strength of the first mounting plate be enhanced, and its tensile and deformation resistance improved, but the first reinforcing plate can also share the load borne by the first mounting plate and disperse stress, thereby reducing stress concentration in the area of ​​the first mounting plate near the sleeve, and thus reducing the risk of deformation and breakage of the first mounting plate. Furthermore, the thickness of both the first mounting plate and the first reinforcing plate can be reduced while improving structural strength, making their processing more difficult, saving processing time, and thus improving processing efficiency.

[0007] In some embodiments, along a first direction, a first mounting plate is located on the side of a second mounting plate near the bottom wall; the first mounting plate includes a first mounting portion and two first connecting portions located on opposite sides of the first mounting portion along a second direction, and the second mounting plate includes a second mounting portion and two second connecting portions located on opposite sides of the second mounting portion along a second direction; the first mounting portion and the second mounting portion are spaced apart, and the first connecting portions are connected to the second connecting portions; wherein, the first mounting portion and the second mounting portion are used to mount a sleeve, and a first reinforcing plate is at least located on the side of the first mounting portion facing away from the second mounting plate; the second direction is perpendicular to the first direction and parallel to the extension direction of the sidewall. By placing the first reinforcing plate on the side of the first mounting portion facing away from the second mounting plate, the tensile and deformation resistance of the first mounting portion can be improved, thereby further reducing the risk of deformation and breakage of the first mounting portion; and it is possible to place the first reinforcing plate outside the first cavity, which facilitates its connection with the first mounting portion, and the structural design of the first reinforcing plate is not limited by the first cavity.

[0008] In some embodiments, a first mounting plate extends along a second direction and includes: a first mounting section having a plurality of first mounting portions spaced apart along the second direction; and a first extension section connected to one end of the first mounting section along the second direction. The reinforcing assembly includes a plurality of first reinforcing plates, each disposed on the side of a plurality of first mounting portions of the first mounting plate facing away from the second mounting plate. This arrangement, on the one hand, expands the contact area between the first mounting plate and the box body, thereby enhancing the structural strength of the box body in areas not connected to the first mounting section and dispersing the stress of the first mounting portions to a wider area of ​​the box body, reducing stress concentration. On the other hand, by providing a first reinforcing plate on the side of each first mounting portion facing away from the second mounting plate, the structural strength of the entire first mounting section is increased. The independent arrangement of the plurality of first reinforcing plates not only reduces manufacturing complexity but also reduces the total weight of the first reinforcing plates in the mounting assembly, thus reducing the overall weight of the mounting assembly.

[0009] In some embodiments, a first reinforcing plate located near the first mounting portion of the first extension extends to the side of the first extension facing away from the second mounting plate. This configuration enhances the structural strength of the first extension and improves its tensile and deformation resistance, reducing the risk of deformation or breakage of the first extension.

[0010] In some embodiments, the orthographic projection of the first extension section toward the flange portion of the housing body along the first direction is located inside the side edge of the flange portion away from the receiving space; and / or, the orthographic projection of the area of ​​the first mounting section without the first mounting portion and the first connecting portion toward the flange portion along the first direction is located inside the side edge of the flange portion away from the receiving space. This arrangement allows for reserved layout space for other components that need to be connected to the flange portion and / or sidewalls, thereby improving the compatibility and adaptability of the battery housing.

[0011] In some embodiments, the first mounting plate further includes a first transition portion connected between the first mounting portion and the first connecting portion; the first reinforcing plate includes: a first bearing portion; two second transition portions connected to opposite ends of the first bearing portion along a second direction, and a third connecting portion is provided at the end of the second transition portion away from the first bearing portion; wherein the first bearing portion is connected to the first mounting portion, the third connecting portion is connected to the first connecting portion, and the second transition portion is spaced apart from the first transition portion. By spacing the second transition section from the first transition section, on the one hand, it not only provides space for deformation during the assembly of the first mounting plate and the first reinforcing plate, but also reduces the risk of deformation or cracking of the first mounting plate and / or the first reinforcing plate due to thermal expansion; on the other hand, it provides a flow channel for the anti-corrosion coating, allowing the anti-corrosion coating to enter between the first mounting plate and the first reinforcing plate when spraying it onto the battery box. The anti-corrosion coating not only reduces or eliminates the direct contact area between the first mounting plate and the first reinforcing plate, reducing the risk of wear due to friction, but also absorbs vibration energy and disperses stress after curing, thereby enhancing the connection strength and stability between the first mounting plate and the first reinforcing plate.

[0012] In some embodiments, the first reinforcing plate is provided with a first reinforcing part. This can improve the structural strength, resistance to deformation and tensile strength of the first reinforcing plate, thereby further reducing the risk of deformation or breakage of the first mounting plate.

[0013] In some embodiments, the reinforcing component further includes a second reinforcing plate, which is disposed on the side of the second mounting plate facing the first mounting plate in the region corresponding to the second mounting portion. By providing a second reinforcing plate in the region of the second mounting plate corresponding to the second mounting portion, on the one hand, it can not only enhance the structural strength of the second mounting portion and improve its tensile and deformation resistance, but also distribute the load borne by the second mounting portion and disperse stress, thereby reducing stress concentration in the second mounting portion and thus reducing the risk of deformation and fracture of the second mounting portion; on the other hand, it can reduce the thickness of both the second mounting plate and the second reinforcing plate while improving structural strength, thus reducing the processing difficulty of both, thereby saving processing time and improving processing efficiency; thirdly, by providing a second reinforcing plate in the region corresponding to the second mounting portion, the structural strength of the second mounting portion can be enhanced. The reinforcing plate is located on the second mounting section. This reduces the risk of deformation and breakage of the second mounting section near the sleeve while minimizing the size of the second reinforcing plate. Consequently, the impact of the second reinforcing plate on the overall weight of the battery box can be reduced. This allows the weight of the battery pack to be less affected by the vehicle's energy consumption and range when the battery box is used as a battery device. Furthermore, since the risk of deformation and breakage of the second mounting plate towards the first mounting plate is higher when it is mounted, placing the second reinforcing plate on the side of the second mounting plate facing the first mounting plate can further improve the tensile and deformation resistance of the first mounting section.

[0014] In some embodiments, the second reinforcing plate includes: a fixing portion connected to the sidewall; and a second bearing portion connected to the fixing portion near the end of the first mounting plate and extending to the side of the second mounting portion facing the first mounting plate, wherein the second bearing portion is at least partially connected to the second mounting portion. This configuration increases the contact area between the second reinforcing plate and the sidewall, thereby improving the connection strength and stability between the second reinforcing plate and the sidewall. This enhances the structural strength and stability of the second mounting portion supported on the second bearing portion of the second reinforcing plate, and consequently reduces the risk of deformation or breakage of the second mounting portion.

[0015] In some embodiments, the second load-bearing portion includes: a load-bearing body connected to a second mounting plate and spaced apart from a first mounting plate; and two extensions connected to opposite ends of the load-bearing body along a second direction, the extensions extending away from the load-bearing body and bending towards the first mounting plate. By providing extensions at opposite ends of the load-bearing body along the second direction, and by having the extensions extend away from the load-bearing body and bend towards the first mounting plate, the extensions form an arc-shaped structure, which can increase the moment of inertia of the overall cross-section of the second load-bearing portion, thereby improving the deformation resistance of the second load-bearing portion.

[0016] In some embodiments, the second load-bearing portion further includes a support portion, which is connected between the end of the extension away from the load-bearing body and the first mounting plate. This arrangement, on the one hand, creates an arc-shaped transition between the support portion and the load-bearing body through the extension, allowing the stress borne by the load-bearing body to be smoothly transferred to the support portion through the extension, reducing stress concentration between the load-bearing body and the support portion, thereby improving the second reinforcing plate's resistance to deformation and fatigue; on the other hand, the connection between the support portion and the first mounting plate enhances the structural strength of both the second reinforcing plate and the first mounting plate, thus strengthening the overall structural strength of the mounting assembly.

[0017] In some embodiments, the second mounting plate protrudes towards the side away from the second reinforcing plate, forming a recess on the side of the second mounting plate facing the second reinforcing plate. The recess is located on the side of the second mounting plate near the sidewall, and the second reinforcing plate has a second reinforcing portion corresponding to the area of ​​the recess. By forming a recess on the side of the second mounting plate facing the second reinforcing plate, the recess serves to avoid the second reinforcing portion of the second reinforcing plate. This reduces, on the one hand, the rigid interference between the second reinforcing portion and the second mounting plate, lowering the risk of wear, deformation, and cracking of the second mounting plate; on the other hand, the provision of the second reinforcing portion enhances the structural strength of the second reinforcing plate and improves its resistance to deformation and tension.

[0018] In some embodiments, the second mounting portion extends along a second direction and includes: a second mounting section having a plurality of second mounting portions spaced apart along the second direction; and a second extension section connected to one end of the second mounting section along the second direction, the second extension section being connected to a first extension section. By providing a second extension section at one end of the second mounting section along the second direction, the contact area between the second mounting plate and the box body can be increased. This not only enhances the structural strength of the box body in areas not connected to the second mounting section but also disperses the stress of the second mounting portion to a wider area of ​​the box body, reducing stress concentration.

[0019] In some embodiments, the sleeve passes through the second mounting plate, the second reinforcing plate, the first mounting plate, and the first reinforcing plate, with one end of the sleeve exposed on the side of the first reinforcing plate facing away from the first mounting plate, and the other end exposed on the side of the second mounting plate facing away from the second reinforcing plate. One end of the sleeve is connected to the side of the second mounting plate facing away from the first mounting plate, and the other end of the sleeve is connected to the side of the first reinforcing plate facing away from the first mounting plate. By configuring the sleeve with both ends exposed, not only can the installation efficiency of the sleeve be improved and the risk of sleeve detachment be reduced, but the compatibility and adaptability of the sleeve can also be improved. Furthermore, by connecting one end of the sleeve to the side of the second mounting plate facing away from the first mounting plate and the other end to the side of the first reinforcing plate facing away from the first mounting plate, the obstruction of other components to the installation process of the sleeve can be reduced, thereby improving the ease of operation when installing the sleeve and thus improving the installation efficiency of the sleeve.

[0020] In some embodiments, the mounting assembly includes a first mounting plate and a second mounting plate, which are stacked and connected to each other along a first direction. The first mounting plate is connected to the side wall of the housing body or to the side wall and the bottom wall connected to the side wall, and the second mounting plate is connected to the side wall. The sleeve is axially perpendicular to the bottom wall, and the first mounting plate is located below the second mounting plate. The reinforcing assembly includes a third reinforcing plate, which is disposed on the side of the first mounting plate near the second mounting plate. By providing a third reinforcing plate on the side of the first mounting plate near the second mounting plate, the third reinforcing plate can not only enhance the structural strength of the first mounting plate, but also suppress the warping of the first mounting plate toward the second mounting plate, thereby reducing the risk of the first mounting plate loosening or falling off.

[0021] In some embodiments, the mounting assembly includes a first mounting plate and a second mounting plate, which are stacked and connected to each other along a first direction. The first mounting plate is connected to the side wall of the housing body or to the side wall and the bottom wall connected to the side wall, and the second mounting plate is connected to the side wall. The sleeve is axially perpendicular to the bottom wall, and the first mounting plate is located below the second mounting plate. The reinforcing assembly includes a fourth reinforcing plate, which is disposed on the side of the second mounting plate opposite to the first mounting plate. By providing the fourth reinforcing plate on the side of the second mounting plate opposite to the first mounting plate, the fourth reinforcing plate can not only enhance the structural strength of the second mounting plate, but also suppress the warping of the second mounting plate toward the first mounting plate, thereby reducing the risk of the first mounting plate loosening or falling off.

[0022] Secondly, this application provides a battery housing, the battery housing comprising: a housing body having a receiving space for accommodating individual battery cells; a mounting assembly comprising a mounting component, a reinforcing component, and a sleeve, the mounting component being connected to the side of the housing body facing away from the receiving space, the reinforcing component being disposed on one side of the mounting component along a first direction, and the sleeve passing through the mounting component and the reinforcing component, wherein the orthographic projection of the mounting component and the reinforcing component toward the first direction on a reference plane does not overlap with the orthographic projection of the sleeve toward the first direction on the reference plane; wherein the first direction is parallel to the axial direction of the sleeve. By placing the reinforcing component along the first direction on one side of the mounting component and inserting the sleeve through the mounting component and the reinforcing component, the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane. On the one hand, the reinforcement component not only enhances the structural strength of the mounting component and improves its tensile and deformation resistance, but also shares the load of external components with the mounting component and the sleeve, dispersing stress and reducing stress concentration in the area of ​​the mounting component near the sleeve. This reduces the risk of deformation and breakage of the mounting component, thereby improving the reliability of the battery device. On the other hand, by ensuring that the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane, interference between the sleeve and the mounting component and the reinforcing component along its axial direction can be reduced. This allows the mounting component and the reinforcing component to be compatible with sleeves of different axial dimensions, thereby improving the adaptability and compatibility of the battery housing with the sleeve.

[0023] In some embodiments, the mounting assembly includes a first mounting plate and a second mounting plate, which are stacked and connected to each other along a first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall, and the second mounting plate is connected to the side wall. The reinforcing assembly includes a first reinforcing plate, which is disposed on one side of the first mounting plate. The axial direction of the sleeve is perpendicular to the bottom wall. By disposing the first reinforcing plate on one side of the first mounting plate, not only can the structural strength of the first mounting plate be enhanced, and its tensile and deformation resistance improved, but the first reinforcing plate can also share the load borne by the first mounting plate and disperse stress, thereby reducing stress concentration in the area of ​​the first mounting plate near the sleeve, and thus reducing the risk of deformation and breakage of the first mounting plate. Furthermore, the thickness of both the first mounting plate and the first reinforcing plate can be reduced while improving structural strength, making their processing more difficult, saving processing time, and thus improving processing efficiency.

[0024] In some embodiments, along a first direction, a first mounting plate is located on the side of a second mounting plate near the bottom wall; the first mounting plate includes a first mounting portion and two first connecting portions located on opposite sides of the first mounting portion along a second direction, and the second mounting plate includes a second mounting portion and two second connecting portions located on opposite sides of the second mounting portion along a second direction; the first mounting portion and the second mounting portion are spaced apart, and the first connecting portions are connected to the second connecting portions; wherein, the first mounting portion and the second mounting portion are used to mount a sleeve, and a first reinforcing plate is at least located on the side of the first mounting portion facing away from the second mounting plate; the second direction is perpendicular to the first direction and parallel to the extension direction of the sidewall. By placing the first reinforcing plate on the side of the first mounting portion facing away from the second mounting plate, the tensile and deformation resistance of the first mounting portion can be further improved, thereby further reducing the risk of deformation and breakage of the first mounting portion; and it is possible to place the first reinforcing plate outside the first cavity, which facilitates its connection with the first mounting portion, and the structural design of the first reinforcing plate is not limited by the first cavity.

[0025] In some embodiments, a first mounting plate extends along a second direction and includes: a first mounting section having a plurality of first mounting portions spaced apart along the second direction; and a first extension section connected to one end of the first mounting section along the second direction. The reinforcing assembly includes a plurality of first reinforcing plates, each disposed on the side of a plurality of first mounting portions of the first mounting plate facing away from the second mounting plate. This arrangement, on the one hand, expands the contact area between the first mounting plate and the box body, thereby enhancing the structural strength of the box body in areas not connected to the first mounting section and dispersing the stress of the first mounting portions to a wider area of ​​the box body, reducing stress concentration. On the other hand, by providing a first reinforcing plate on the side of each first mounting portion facing away from the second mounting plate, the structural strength of the entire first mounting section is increased. The independent arrangement of the plurality of first reinforcing plates not only reduces manufacturing complexity but also reduces the total weight of the first reinforcing plates in the mounting assembly, thus reducing the overall weight of the mounting assembly.

[0026] In some embodiments, a first reinforcing plate located near the first mounting portion of the first extension extends to the side of the first extension facing away from the second mounting plate. This configuration enhances the structural strength of the first extension and improves its tensile and deformation resistance, reducing the risk of deformation or breakage of the first extension.

[0027] In some embodiments, the orthographic projection of the first extension section toward the flange portion of the housing body along the first direction is located inside the side edge of the flange portion away from the receiving space; and / or, the orthographic projection of the area of ​​the first mounting section without the first mounting portion and the first connecting portion toward the flange portion along the first direction is located inside the side edge of the flange portion away from the receiving space. This arrangement allows for reserved layout space for other components that need to be connected to the flange portion and / or sidewalls, thereby improving the compatibility and adaptability of the battery housing.

[0028] In some embodiments, the reinforcing component further includes a second reinforcing plate, which is disposed on the side of the second mounting plate facing the first mounting plate in the region corresponding to the second mounting portion. By providing a second reinforcing plate in the region of the second mounting plate corresponding to the second mounting portion, on the one hand, it can not only enhance the structural strength of the second mounting portion and improve its tensile and deformation resistance, but also distribute the load borne by the second mounting portion and disperse stress, thereby reducing stress concentration in the second mounting portion and thus reducing the risk of deformation and fracture of the second mounting portion; on the other hand, it can reduce the thickness of both the second mounting plate and the second reinforcing plate while improving structural strength, thus reducing the processing difficulty of both, thereby saving processing time and improving processing efficiency; thirdly, by providing a second reinforcing plate in the region corresponding to the second mounting portion, the structural strength of the second mounting portion can be enhanced. The reinforcing plate is located on the second mounting section. This reduces the risk of deformation and breakage of the second mounting section near the sleeve while minimizing the size of the second reinforcing plate. Consequently, the impact of the second reinforcing plate on the overall weight of the battery box can be reduced. This allows the weight of the battery pack to be less affected by the vehicle's energy consumption and range when the battery box is used as a battery device. Furthermore, since the risk of deformation and breakage of the second mounting plate towards the first mounting plate is higher when it is mounted, placing the second reinforcing plate on the side of the second mounting plate facing the first mounting plate can further improve the tensile and deformation resistance of the first mounting section.

[0029] In some embodiments, the second reinforcing plate includes: a fixing portion connected to the sidewall; and a second bearing portion connected to the fixing portion near the end of the first mounting plate and extending to the side of the second mounting portion facing the first mounting plate, wherein the second bearing portion is at least partially connected to the second mounting portion. This configuration increases the contact area between the second reinforcing plate and the sidewall, thereby improving the connection strength and stability between the second reinforcing plate and the sidewall. This enhances the structural strength and stability of the second mounting portion supported on the second bearing portion of the second reinforcing plate, and consequently reduces the risk of deformation or breakage of the second mounting portion.

[0030] In some embodiments, the second load-bearing portion includes: a load-bearing body connected to a second mounting plate and spaced apart from a first mounting plate; and two extensions connected to opposite ends of the load-bearing body along a second direction, the extensions extending away from the load-bearing body and bending towards the first mounting plate. By providing extensions at opposite ends of the load-bearing body along the second direction, and by having the extensions extend away from the load-bearing body and bend towards the first mounting plate, the extensions form an arc-shaped structure, which can increase the moment of inertia of the overall cross-section of the second load-bearing portion, thereby improving the deformation resistance of the second load-bearing portion.

[0031] In some embodiments, the second load-bearing portion further includes a support portion, which is connected between the end of the extension away from the load-bearing body and the first mounting plate. This arrangement, on the one hand, creates an arc-shaped transition between the support portion and the load-bearing body through the extension, allowing the stress borne by the load-bearing body to be smoothly transferred to the support portion through the extension, reducing stress concentration between the load-bearing body and the support portion, thereby improving the second reinforcing plate's resistance to deformation and fatigue; on the other hand, the connection between the support portion and the first mounting plate enhances the structural strength of both the second reinforcing plate and the first mounting plate, thus strengthening the overall structural strength of the mounting assembly.

[0032] In some embodiments, the second mounting plate protrudes towards the side away from the second reinforcing plate, forming a recess on the side of the second mounting plate facing the second reinforcing plate. The recess is located on the side of the second mounting plate near the sidewall, and the second reinforcing plate has a second reinforcing portion corresponding to the area of ​​the recess. By forming a recess on the side of the second mounting plate facing the second reinforcing plate, the recess serves to avoid the second reinforcing portion of the second reinforcing plate. This reduces, on the one hand, the rigid interference between the second reinforcing portion and the second mounting plate, lowering the risk of wear, deformation, and cracking of the second mounting plate; on the other hand, the provision of the second reinforcing portion enhances the structural strength of the second reinforcing plate and improves its resistance to deformation and tension.

[0033] Thirdly, this application provides an electrical device including the aforementioned battery device. Attached Figure Description

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of an embodiment of the electrical equipment provided in this application;

[0036] Figure 2This is an exploded structural diagram of an embodiment of the battery device provided in this application;

[0037] Figure 3 This is a schematic diagram of a portion of the structure of the first embodiment of the battery housing provided in this application;

[0038] Figure 4 yes Figure 3 Enlarged view of part A in the image;

[0039] Figure 5 yes Figure 3 Enlarged view of part B in the image;

[0040] Figure 6 This is a schematic diagram of a portion of the structure of the second embodiment of the battery housing provided in this application;

[0041] Figure 7 yes Figure 6 Enlarged view of section C in the image;

[0042] Figure 8 This is a schematic diagram of a portion of the structure of the third embodiment of the battery housing provided in this application;

[0043] Figure 9 yes Figure 8 Enlarged view of part D in the image.

[0044] The reference numerals in the detailed embodiments are as follows:

[0045] Vehicle 1000a, controller 200a, motor 300a, battery device 100a, battery cell 102, battery box 101, box body 10, first part 10a, second part 10b, accommodating space 10c, side wall 11, first side wall 111, second side wall 112, bottom wall 12, flange 13, corner area 14, mounting assembly 20, fixing hole 20a, mounting component 21, first cavity 21a, first mounting plate 211, first mounting part 2111, first connecting part 2112, first transition part 2113, first mounting section 2114, first extension section 2115, first clearance space 211a. Second clearance space 211b, second mounting plate 212, recess 212a, slot 212b, second mounting part 2121, second connecting part 2122, second mounting section 2123, second extension section 2124, reinforcing component 22, first reinforcing plate 221, first bearing part 2211, second transition part 2212, third connecting part 2213, first reinforcing part 2214, second cavity 2214a, through hole 2214b, second reinforcing plate 222, fixing part 2221, second bearing part 2222, bearing body 2222a, extension part 2222b, support part 2222c, sleeve 23, mounting hole 23a. Detailed Implementation

[0046] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0048] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, 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 the embodiments of this application.

[0051] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate heat exchange medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] With the development of battery technology, battery devices are being applied in more and more fields, gradually replacing traditional fossil fuels in areas such as vehicle power. In related technologies, mounting components are typically installed on the battery housing to install sleeves, which then connect to external components. These external components can be, but are not limited to, structures for mounting the battery device, heat exchange mechanisms, electrical connectors, etc.

[0054] In practical applications, the sleeve and mounting assembly need to jointly bear the loads of external components. For example, the sleeve and mounting assembly need to jointly bear the static loads such as gravity and tension of the structure, heat exchange mechanism, electrical connector, etc. of the electrical equipment used to install battery devices, as well as the dynamic loads caused by vibration. Moreover, the stress borne by the mounting assembly is concentrated in the area close to the sleeve, which can easily lead to the risk of deformation and breakage of the mounting assembly.

[0055] Based on the above considerations, this application provides a battery device, a battery housing, and an electrical device. The battery device includes individual battery cells and a battery housing. The battery housing includes at least a housing body and a mounting assembly. The housing body forms a receiving space for accommodating the individual battery cells. The mounting assembly includes a mounting component, a reinforcing component, and a sleeve. The mounting component is connected to the side of the housing body facing away from the receiving space. The reinforcing component is disposed on one side of the mounting component along a first direction. The sleeve passes through the mounting component and the reinforcing component, and the orthographic projections of the mounting component and the reinforcing component onto a reference plane in the first direction do not overlap with the orthographic projection of the sleeve onto the reference plane in the first direction. The first direction is parallel to the axial direction of the sleeve. By placing the reinforcing component along the first direction on one side of the mounting component and inserting the sleeve through the mounting component and the reinforcing component, the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane. On the one hand, the reinforcement component not only enhances the structural strength of the mounting component and improves its tensile and deformation resistance, but also shares the load of external components with the mounting component and the sleeve, dispersing stress and reducing stress concentration in the area of ​​the mounting component near the sleeve. This reduces the risk of deformation and breakage of the mounting component, thereby improving the reliability of the battery device. On the other hand, by ensuring that the orthographic projections of the mounting component and the reinforcing component toward the first direction on the reference plane do not overlap with the orthographic projections of the sleeve toward the first direction on the reference plane, interference between the sleeve and the mounting component and the reinforcing component along its axial direction can be reduced. This allows the mounting component and the reinforcing component to be compatible with sleeves of different axial dimensions, thereby improving the adaptability and compatibility of the battery housing with the sleeve.

[0056] The battery device, battery housing, and electrical equipment disclosed in this application can be used in electrical equipment that uses the battery device as a power source or in various energy storage systems that use the battery device as an energy storage element. The electrical equipment can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0057] For ease of explanation, the following embodiments will be described using a vehicle 1000a as an example of an electrical device according to an embodiment of this application.

[0058] Please refer to Figure 1The vehicle 1000a can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device 100a is installed inside the vehicle 1000a, and the battery device 100a can be located at the bottom of the vehicle 1000a. The battery device 100a can be used to power the vehicle 1000a; for example, the battery device 100a can serve as the operating power source for the vehicle 1000a. The vehicle 1000a may also include a controller 200a and a motor 300a. The controller 200a is used to control the battery device 100a to supply power to the motor 300a, for example, to meet the power needs of the vehicle 1000a during starting, navigation, and driving.

[0059] In some embodiments of this application, the battery device 100a can not only serve as the operating power source for the vehicle 1000a, but also as the driving power source for the vehicle 1000a, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000a.

[0060] In some embodiments, the battery device 100a may be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0061] The battery device 100a mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells 102, which are connected in series, parallel, or mixed connections via a busbar.

[0062] In this embodiment of the application, the battery cell 102 can be a secondary battery. A secondary battery refers to a battery cell 102 that can be used again after being discharged by recharging to activate the active materials.

[0063] The battery cell 102 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0064] In some embodiments, the battery device 100a can be a battery module, and when there are multiple battery cells 102, the multiple battery cells 102 are arranged and fixed to form a battery module.

[0065] In some embodiments, please refer to Figure 2The battery device 100a includes a battery cell 102 and a battery housing 101. The battery housing 101 includes at least a housing body 10, in which the battery cell 102 or battery module is housed. The housing body 10 may include a first portion 10a and a second portion 10b, which overlap each other, defining a receiving space 10c for accommodating the battery cell 102. The second portion 10b may be a hollow structure with one open end, while the first portion 10a may be a plate-like structure, covering the open side of the second portion 10b so that the first portion 10a and the second portion 10b together define the receiving space 10c. Alternatively, the first portion 10a and the second portion 10b may both be hollow structures with one open side, with the open side of the first portion 10a covering the open side of the second portion 10b. Of course, the housing body 10 formed by the first portion 10a and the second portion 10b can be of various shapes, such as a cylinder or a cuboid.

[0066] In some embodiments, the battery housing 101 may be part of the chassis structure of the vehicle 1000a. For example, a portion of the battery housing 101 may be at least a portion of the floor of the vehicle 1000a, or a portion of the battery housing 101 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000a.

[0067] In some embodiments, please refer to Figures 3 to 5 The battery device 100a includes a battery cell 102 and a battery housing 101. The battery housing 101 includes at least a housing body 10 and a mounting assembly 20. The housing body 10 forms a receiving space 10c for receiving the battery cell 102. The mounting assembly 20 includes a mounting component 21, a reinforcing component 22, and a sleeve 23. The mounting component 21 is connected to the side of the housing body 10 facing away from the receiving space 10c. The reinforcing component 22 is disposed on one side of the mounting component 21 along a first direction ZZ. The sleeve 23 passes through the mounting component 21 and the reinforcing component 22, and the orthographic projections of the mounting component 21 and the reinforcing component 22 toward the first direction ZZ on a reference plane (not shown) do not overlap with the orthographic projection of the sleeve 23 toward the first direction ZZ on the reference plane. The first direction ZZ is parallel to the axial direction of the sleeve 23.

[0068] in, Figure 3Only a portion of the structure of the casing 10 is shown; it will be understood that the casing 10 also includes another portion that overlaps with this portion. In some embodiments, the casing 10 includes a first portion 10a and a second portion 10b. The second portion 10b may be located below the first portion 10a along the arrangement direction of the top and bottom of the battery casing 101. The mounting assembly 20 may be connected to the side of the first portion 10a facing away from the receiving space 10c; alternatively, the mounting assembly 20 may also be connected to the side of the second portion 10b facing away from the receiving space 10c. In the following embodiments, the mounting assembly 20 is described as being connected to the side of the second portion 10b facing away from the receiving space 10c.

[0069] The reinforcing component 22 and the mounting component 21 can be stacked in a first direction ZZ parallel to the axial direction of the sleeve 23. The mounting component 21 and the reinforcing component 22 are provided with fixing holes 20a correspondingly arranged along the first direction ZZ. The sleeve 23 passes through the fixing holes 20a of the mounting component 21 and the reinforcing component 22. The sleeve 23 has mounting holes 23a that penetrate the two opposite ends of the sleeve 23 arranged along the first direction ZZ. The sleeve 23 is used to connect the housing body 10 to external components through the mounting holes 23a.

[0070] In some embodiments, the mounting component 21 and the reinforcing component 22 may be made of the same material. The reinforcement component 22 can increase the thickness of the area of ​​the mounting component 21 near the sleeve 23, thereby enhancing the structural strength. Alternatively, the mounting component 21 and the reinforcing component 22 may be made of different materials, and the hardness of the reinforcing component 22 may be greater than that of the mounting component 21.

[0071] The reference plane can be a plane located on one side of the mounting assembly 20 along the first direction ZZ and perpendicular to the first direction ZZ. The reference plane can be located on the side of the mounting assembly 20 along the first direction ZZ near the top of the box body 10; or it can be located on the side of the mounting assembly 20 along the first direction ZZ near the bottom of the box body 10.

[0072] By placing the reinforcing component 22 along the first direction ZZ on one side of the mounting component 21, and passing the sleeve 23 through the mounting component 21 and the reinforcing component 22, the orthographic projections of the mounting component 21 and the reinforcing component 22 along the first direction ZZ on the reference plane do not overlap with the orthographic projection of the sleeve 23 along the first direction ZZ on the reference plane. On the one hand, the setting of the reinforcing component 22 can not only enhance the structural strength of the mounting component 21 and improve its tensile and deformation resistance, but also the reinforcing component 22 can share the load of the external components with the mounting component 21 and the sleeve 23, and disperse stress, reducing stress concentration on the mounting component. The area where component 21 is close to sleeve 23 can reduce the risk of deformation or breakage of the mounting component 21, thereby improving the reliability of battery device 100a. On the other hand, by ensuring that the orthographic projection of mounting component 21 and reinforcing component 22 in the first direction ZZ on the reference plane does not overlap with the orthographic projection of sleeve 23 in the first direction ZZ on the reference plane, the interference between sleeve 23 and mounting component 21 and reinforcing component 22 along its axial direction can be reduced. This at least allows mounting component 21 and reinforcing component 22 to be adapted to sleeves 23 with different axial dimensions, thereby improving the adaptability and compatibility of battery housing 101 with sleeve 23.

[0073] The sleeve 23 can be a cylindrical structure, meaning that the radial dimension of each region of the sleeve 23 is equal along its axial direction. After the sleeve 23 passes through the mounting assembly 21 and the reinforcing assembly 22, the orthographic projections of the mounting assembly 21 and the reinforcing assembly 22 in the first direction ZZ on the reference plane do not overlap with the orthographic projections of the sleeve 23 in the first direction ZZ on the reference plane. For example, the orthographic projections of the mounting assembly 21 and the reinforcing assembly 22 in the first direction ZZ on the reference plane can be adjacent to and in contact with the orthographic projections of the sleeve 23 in the first direction ZZ on the reference plane, or they can be spaced apart. This arrangement can reduce the interference between the sleeve 23 and the mounting assembly 21 and the reinforcing assembly 22 along its axial direction, and at least make the fixing holes 20a of the mounting assembly 21 and the reinforcing assembly 22 adaptable to sleeves 23 with different axial dimensions, thereby improving the adaptability and compatibility of the battery box 101 with the sleeve 23.

[0074] In some embodiments, after the sleeve 23 is inserted into the fixing hole 20a of the mounting assembly 21 and the reinforcing assembly 22, the outer surface of the sleeve 23 only contacts the inner wall of the fixing hole 20a, so that the orthographic projection of the mounting assembly 21 and the reinforcing assembly 22 in the first direction ZZ on the reference plane is adjacent to and in contact with the orthographic projection of the sleeve 23 in the first direction ZZ on the reference plane. In other embodiments, after the sleeve 23 is inserted into the fixing hole 20a of the mounting assembly 21 and the reinforcing assembly 22, the outer surface of the sleeve 23 may contact the inner wall of the fixing hole 20a at intervals. The sleeve 23 is connected to the mounting assembly 21 and the reinforcing assembly 22 through other connecting structures, so that the orthographic projection of the mounting assembly 21 and the reinforcing assembly 22 in the first direction ZZ on the reference plane is spaced apart from the orthographic projection of the sleeve 23 in the first direction ZZ on the reference plane.

[0075] In some embodiments, please continue to refer to Figures 3 to 4 The mounting assembly 21 includes a first mounting plate 211 and a second mounting plate 212, which are stacked and connected to each other along a first direction ZZ. The first mounting plate 211 is connected to the side wall 11 of the housing body 10 or to the side wall 11 and the bottom wall 12 connected to the side wall 11, and the second mounting plate 212 is connected to the side wall 11. The reinforcing assembly 22 includes a first reinforcing plate 221, which is disposed on one side of the first mounting plate 211; the axial direction of the sleeve 23 is perpendicular to the bottom wall 12.

[0076] The sleeve 23 is axially perpendicular to the bottom wall 12 of the box body 10, that is, the first direction ZZ is perpendicular to the bottom wall 12 of the box body 10.

[0077] In some embodiments, the box body 10 includes two first sidewalls 111 and two second sidewalls 112. The two first sidewalls 111 extend along a third direction YY and are disposed opposite each other in a second direction XX. The two second sidewalls 112 extend along the second direction XX and are disposed opposite each other in a third direction YY. The two first sidewalls 111 and the two second sidewalls 112 are connected and arranged around the bottom wall 12 to form an accommodating space 10c. The mounting assembly 20 can be disposed on at least one of the two first sidewalls 111; or, the mounting assembly 20 can be disposed on at least one of the two second sidewalls 112; or, the mounting assembly 20 can be disposed on both the first sidewalls 111 and the second sidewalls 112. The first direction ZZ, the second direction XX, and the third direction YY are perpendicular to each other. This embodiment of the application describes the second sidewall 112 as an example where the sidewall 11 with the mounting assembly 20 is located.

[0078] The first mounting plate 211 and the second mounting plate 212 can be two independent structures that are joined together by a fixed connection. The fixed connection method can be welding, riveting, bolting, snap-fitting, pin connection, magnetic adsorption connection, adhesive connection, etc., but is not limited to these.

[0079] The first reinforcing plate 221 can be located on the side of the first mounting plate 211 facing the second mounting plate 212; alternatively, the first reinforcing plate 221 can also be located on the side of the first mounting plate 211 facing away from the second mounting plate 212. The first reinforcing plate 221 can be fixedly connected to one side of the first mounting plate 211 by means of welding, riveting, bolting, snap-fitting, pinning, magnetic adsorption, adhesive bonding, etc., but is not limited to these methods.

[0080] The first mounting plate 211 and the second mounting plate 212 can be extended along the extension direction of the side wall 11 where the mounting assembly 20 is located. The first mounting plate 211 and the second mounting plate 212 can serve as a reinforcing structure for the box body 10. Under the premise of enhancing the overall structural strength of the box body 10 and improving the overall resistance to compression and impact of the box body 10, the thickness of the side wall 11 and bottom wall 12 of the box body 10 can be reduced, thereby improving the space utilization of the box body 10 and enabling the box body 10 to increase the energy density of the battery device 100a without increasing the volume.

[0081] Because the first mounting plate 211 is positioned closer to the bottom wall 12 of the box body 10 than the second mounting plate 212, the structural strength requirements for the first mounting plate 211 are higher, and the risk of deformation and breakage of the first mounting plate 211 is also higher. Therefore, by placing the first reinforcing plate 221 on one side of the first mounting plate 211, not only can the structural strength of the first mounting plate 211 be enhanced, and its tensile and deformation resistance improved, but the first reinforcing plate 221 can also share the load borne by the first mounting plate 211 and disperse stress, thereby reducing stress concentration in the area of ​​the first mounting plate 211 near the sleeve 23, and thus reducing the risk of deformation and breakage of the first mounting plate 211. Furthermore, the thickness of both the first mounting plate 211 and the first reinforcing plate 221 can be reduced while improving structural strength, thus reducing the processing difficulty of both, saving processing time, and improving processing efficiency.

[0082] In some embodiments, please refer to Figures 6 to 7Along the first direction ZZ, the first mounting plate 211 is located on the side of the second mounting plate 212 near the bottom wall 12. The first mounting plate 211 includes a first mounting part 2111 and two first connecting parts 2112 respectively connected to opposite sides of the first mounting part 2111 along the second direction XX. The second mounting plate 212 includes a second mounting part 2121 and two second connecting parts 2122 respectively connected to opposite sides of the second mounting part 2121 along the second direction XX. The first mounting part 2111 and the second mounting part 2121 are spaced apart, and the first connecting parts 2112 and the second connecting parts 2122 are connected. The first mounting part 2111 and the second mounting part 2121 are used to mount the sleeve 23, and the first reinforcing plate 221 is at least provided on the side of the first mounting part 2111 facing away from the second mounting plate 212. The second direction XX is perpendicular to the first direction ZZ and parallel to the extension direction of the side wall 11.

[0083] The second direction XX is parallel to the extension direction of the side wall 11 where the mount assembly 20 is located.

[0084] The first mounting portion 2111 and the second mounting portion 2121 are spaced apart to form a first cavity 21a between them. The first cavity 21a can guide the load borne by the sleeve 23 to be dispersed towards the first mounting plate 211 and the second mounting plate 212, thereby reducing stress concentration on the sleeve 23 or a certain mounting plate and reducing the risk of fatigue damage to the structure due to stress concentration. The sleeve 23 is inserted through the second mounting portion 2121, the first mounting portion 2111, and the first reinforcing plate 221 along the first direction ZZ.

[0085] The surfaces of the first connecting portion 2112 facing the second mounting plate 212 and the second connecting portion 2122 facing the first mounting plate 211 can be flat surfaces, so that the first connecting portion 2112 and the second connecting portion 2122 can fit tightly together, which helps to enhance the connection strength between the first connecting portion 2112 and the second connecting portion 2122.

[0086] Because the first mounting part 2111 is at higher risk of deformation and breakage on the side facing away from the second mounting plate 212 when it is mounted, by placing the first reinforcing plate 221 on the side of the first mounting part 2111 facing away from the second mounting plate 212, the tensile and deformation resistance of the first mounting part 2111 can be further improved, thereby further reducing the risk of deformation and breakage of the first mounting part 2111; and the first reinforcing plate 221 can be placed outside the first cavity 21a, which facilitates its connection with the first mounting part 2111, and the structural design of the first reinforcing plate 221 is not limited by the first cavity 21a.

[0087] In some embodiments, please continue to refer to Figures 3 to 5 The first mounting plate 211 extends along the second direction XX. The first mounting plate 211 includes a first mounting section 2114 and a first extension section 2115. The first mounting section 2114 has a plurality of first mounting portions 2111 spaced apart along the second direction XX. The first extension section 2115 is connected to one end of the first mounting section 2114 along the second direction XX. The reinforcing component 22 includes a plurality of first reinforcing plates 221, which are respectively disposed on the side of the plurality of first mounting portions 2111 of the first mounting plate 211 facing away from the second mounting plate 212.

[0088] The first mounting section 2114 and the first extension section 2115 can be integrally formed, which can enhance the structural strength and stability between them. The first mounting section 2114 and the first extension section 2115 can be integrally formed by cold stamping, hot stamping, roll forming, extrusion forming, or other methods.

[0089] The first mounting plate 211 is provided with multiple first mounting parts 2111, which extend YY along a third direction. Each of the multiple first mounting parts 2111 is used to mount a sleeve 23 for connection to external components, thereby improving the connection strength and stability between the battery box 101 and the external components. The first extension section 2115 connects to the side wall 11 or connects the side wall 11 and the bottom wall 12. Each first mounting part 2111 has an independent first reinforcing plate 221 on the side facing away from the second mounting plate 212, and adjacent first reinforcing plates 221 can be spaced apart.

[0090] By connecting the first extension section 2115 to one end of the first mounting section 2114 along the second direction XX, and providing a plurality of first mounting parts 2111 spaced apart along the second direction XX on the first mounting section 2114, and by providing a plurality of first reinforcing plates 221 on the side of the plurality of first mounting parts 2111 of the first mounting plate 211 facing away from the second mounting plate 212, on the one hand, the provision of the first extension section 2115 can expand the contact area between the first mounting plate 211 and the box body 10, thereby not only enhancing the box body 10 when the first mounting section 211 is not connected. The structural strength of area 4 is improved, and the stress of the first mounting part 2111 can be distributed to a wider area of ​​the box body 10, reducing the phenomenon of stress concentration. On the other hand, by providing a first reinforcing plate 221 on the side of each first mounting part 2111 facing away from the second mounting plate 212, the structural strength of the entire first mounting section 2114 can be increased. The multiple first reinforcing plates 221 are independently set, which can not only reduce the difficulty of the process, but also reduce the total weight of the first reinforcing plates 221 in the mounting assembly 20, thereby reducing the overall weight of the mounting assembly 20.

[0091] In some embodiments, one end of the first mounting section 2114 away from the first extension section 2115 may extend to one end of the sidewall 11 along the second direction XX, and one end of the first extension section 2115 away from the first mounting section 2114 may extend to the other end of the sidewall 11 along the second direction XX.

[0092] In some embodiments, the box body 10 includes at least two corner regions 14 disposed opposite to each other in the second direction XX, one end of the first mounting section 2114 away from the first extension section 2115 may extend to one of the two corner regions 14, and the other end of the first extension section 2115 away from the first mounting section 2114 may extend to the other of the two corner regions 14.

[0093] In some embodiments, please continue to refer to Figure 5 The first reinforcing plate 221, which is located near the first mounting portion 2111 of the first extension section 2115, extends to the side of the first extension section 2115 facing away from the second mounting plate 212.

[0094] By extending the first reinforcing plate 221, which is located near the first mounting portion 2111 of the first extension section 2115, to the side of the first extension section 2115 facing away from the second mounting plate 212, the structural strength of the first extension section 2115 can be enhanced, and the tensile and deformation resistance of the first extension section 2115 can be improved, thereby reducing the risk of deformation and breakage of the first extension section 2115.

[0095] In some embodiments, the end of the first reinforcing plate 221 away from the first mounting section 2114 can be flush with the end of the first extension section 2115 away from the first mounting section 2114, which can increase the contact area between the first reinforcing plate 221 and the first extension section 2115, thereby further enhancing the structural strength of the first extension section 2115.

[0096] In some embodiments, the orthographic projection of the first extension 2115 toward the flange 13 of the housing body 10 along the first direction ZZ is located inside the side edge of the flange 13 away from the receiving space 10c; and / or, the orthographic projection of the area of ​​the first mounting section 2114 without the first mounting portion 2111 and the first connecting portion 2112 toward the flange 13 along the first direction ZZ is located inside the side edge of the flange 13 away from the receiving space 10c. This arrangement allows for reserved layout space for other components that need to be connected to the flange 13 and / or the side wall 11, thereby improving the compatibility and adaptability of the battery housing 101.

[0097] The flange 13 is located at the end of the side wall 11 away from the bottom wall 12, and extends along the third direction YY in a direction away from the receiving space 10c.

[0098] In some embodiments, the edge of the first extension 2115 away from the receiving space 10c along the third direction YY is closer to the sidewall 11 than the edge of the flange 13 away from the receiving space 10c along the third direction YY, such that the flange 13 protrudes relative to the first extension 2115 along the third direction YY, thereby forming a first clearance space 211a at the position of the first extension 2115.

[0099] In some embodiments, the first mounting portion 2111 and the first connecting portion 2112 extend along a third direction YY, and the area of ​​the first mounting section 2114 without the first mounting portion 2111 and the first connecting portion 2112 is closer to the sidewall 11 along the third direction YY than the edge of the flange portion 13 that is further away from the receiving space 10c along the third direction YY, so that the flange portion 13 protrudes along the third direction YY relative to the area of ​​the first mounting section 2114 without the first mounting portion 2111 and the first connecting portion 2112, thereby forming a second clearance space 211b between two adjacent first mounting portions 2111.

[0100] The provision of the first clearance space 211a and the second clearance space 211b can reserve layout space for other components that need to be connected to the flange 13 and / or the side wall 11, thereby improving the compatibility and adaptability of the battery box 101.

[0101] In some embodiments, please continue to refer to Figure 4 The first mounting plate 211 further includes a first transition portion 2113 connecting the first mounting portion 2111 and the first connecting portion 2112. The first reinforcing plate 221 includes a first supporting portion 2211, two second transition portions 2212, and a third connecting portion 2213. The two second transition portions 2212 are connected to opposite ends of the first supporting portion 2211 along the second direction XX, and the third connecting portion 2213 is provided at the end of the second transition portion 2212 away from the first supporting portion 2211. The first supporting portion 2211 is connected to the first mounting portion 2111, the third connecting portion 2213 is connected to the first connecting portion 2112, and the second transition portions 2212 and the first transition portions 2113 are spaced apart.

[0102] By spacing the second transition portion 2212 from the first transition portion 2113, on the one hand, it not only provides space for deformation during the assembly of the first mounting plate 211 and the first reinforcing plate 221, but also reduces the risk of deformation or cracking of the first mounting plate 211 and / or the first reinforcing plate 221 due to thermal expansion; on the other hand, it provides a flow channel for the anti-corrosion coating, allowing the anti-corrosion coating to enter between the first mounting plate 211 and the first reinforcing plate 221 when the anti-corrosion coating is sprayed onto the battery box 101. The anti-corrosion coating not only reduces or eliminates the direct contact area between the first mounting plate 211 and the first reinforcing plate 221, reducing the risk of wear due to friction, but also absorbs vibration energy and disperses stress after curing, thereby enhancing the connection strength and stability of the first mounting plate 211 and the first reinforcing plate 221.

[0103] In the first mounting plate 211, the first transition portion 2113 extends from the first mounting portion 2111 toward the second mounting plate 212 and is inclined away from the first mounting portion 2111. The connection area between the first mounting portion 2111 and the first transition portion 2113, and the connection area between the first transition portion 2113 and the first connecting portion 2112, can be smoothly arranged. In the first reinforcing plate 221, the second transition portion 2212 extends from the first bearing portion 2211 toward the second mounting plate 212 and is inclined away from the first bearing portion 2211. The connection area between the first bearing portion 2211 and the second transition portion 2212, and the connection area between the second transition portion 2212 and the second connecting portion 2122, can be smoothly arranged. This design reduces the risk of stress overload in the corner areas of the first mounting plate 211 and the first reinforcing plate 221, thereby enhancing the structural strength of the first mounting plate 211 and the first reinforcing plate 221 and improving their resistance to deformation and tension.

[0104] The second mounting portion 2121 of the second mounting plate 212, the first mounting portion 2111 of the first mounting plate 211, and the first bearing portion 2211 of the first reinforcing plate 221 are correspondingly arranged along the first direction ZZ. The sleeve 23 passes through the second mounting portion 2121, the first mounting portion 2111, and the first bearing portion 2211. The first mounting portion 2111 can be connected to the first bearing portion 2211. The connection method between the first mounting portions 2111 and the first mounting portions 2111 can be welding, riveting, bolting, snap-fitting, pinning, magnetic adsorption, adhesive, etc., but is not limited to these.

[0105] The second connecting portion 2122 of the second mounting plate 212, the first connecting portion 2112 of the first mounting plate 211, and the third connecting portion 2213 of the first reinforcing plate 221 are correspondingly arranged along the first direction ZZ. In some embodiments, the second connecting portion 2122, the first connecting portion 2112, and the third connecting portion 2213 can be fixedly connected together by the same fixing part 2221. For example, the same fixing part 2221 can be simultaneously inserted into the second connecting portion 2122, the first connecting portion 2112, and the third connecting portion 2213. The fixing part 2221 can be a bolt, rivet, pin, etc., but is not limited to these. In other embodiments, the second connecting portion 2122 and the first connecting portion 2112, as well as the first connecting portion 2112 and the third connecting portion 2213, can also be connected separately. For example, the second connecting portion 2122 and the first connecting portion 2112, as well as the first connecting portion 2112 and the third connecting portion 2213, can be connected by welding. Alternatively, the first connecting portion 2112 and the second connecting portion 2122 can be connected by a fixing part 2221, and the first connecting portion 2112 and the third connecting portion 2213 can be connected by another fixing part 2221. The fixing part 2221 can be adhesive, buckle, Velcro, magnetic component, etc., but is not limited to these.

[0106] In some embodiments, the anti-corrosion coating may be an epoxy resin coating, a polyurethane anti-corrosion paint, a ceramic matrix composite coating, an inorganic zinc-rich anti-corrosion coating, etc., but is not limited to these.

[0107] In some embodiments, please continue to refer to Figure 7 The first reinforcing plate 221 is provided with a first reinforcing part 2214.

[0108] By providing a first reinforcing part 2214 on the first reinforcing plate 221, the structural strength, deformation resistance and tensile strength of the first reinforcing plate 221 can be improved, thereby further reducing the risk of deformation and breakage of the first mounting plate 211.

[0109] In some embodiments, the first reinforcing portion 2214 includes reinforcing ribs and / or reinforcing protrusions. If the first reinforcing portion 2214 is a reinforcing rib, a second cavity 2214a can be formed between two adjacent reinforcing ribs and the first mounting plate 211. If the first reinforcing portion 2214 is a reinforcing protrusion, the reinforcing protrusion is a structure formed by the first reinforcing plate 221 protruding in a direction away from the first mounting plate 211, so that the second cavity 2214a is formed on the side of the reinforcing protrusion facing the first mounting plate 211. By forming the second cavity 2214a, on the one hand, expansion space can be provided for the first mounting plate 211 and the first reinforcing plate 221, reducing the risk of deformation or cracking of the first mounting plate 211 and / or the second mounting plate 212 due to thermal expansion; on the other hand, a flow channel can be provided for the anti-corrosion coating, so as to facilitate the inflow of the anti-corrosion coating, thereby improving the connection strength and stability between the first mounting plate 211 and the first reinforcing plate 221.

[0110] In some embodiments, a through hole 2214b communicating with the second cavity 2214a can be provided in the region of the first reinforcing plate 221 corresponding to the second cavity 2214a, thereby reducing the weight of the first reinforcing part 2214 without affecting the structural strength of the first reinforcing plate 221.

[0111] In some embodiments, a plurality of first reinforcing portions 2214 may be provided at intervals along the second direction XX in the region corresponding to the first reinforcing plate 221 and the bottom wall 12, and the first reinforcing portions 2214 may extend along the third direction YY, so that the first reinforcing portions 2214 can disperse stress along the second direction XX and the third direction YY. Alternatively, a plurality of first reinforcing portions 2214 may be provided at intervals along the second direction XX in the region corresponding to the first reinforcing plate 221 and the side wall 11, and at least a portion of the first reinforcing portions 2214 may extend along the first direction ZZ, so that the first reinforcing portions 2214 can disperse stress along the first direction ZZ and the second direction XX. This arrangement enables stress to be dispersed in multiple directions by the first reinforcing portions 2214, which helps to improve the stress dispersion efficiency.

[0112] In some embodiments, please continue to refer to Figure 4 The reinforcing component 22 also includes a second reinforcing plate 222, which is disposed on the side of the second mounting plate 212 corresponding to the area of ​​the second mounting part 2121 facing the first mounting plate 211.

[0113] By providing a second reinforcing plate 222 in the region of the second mounting plate 212 corresponding to the second mounting part 2121, on the one hand, it can not only enhance the structural strength of the second mounting part 2121 and improve its tensile and deformation resistance, but also the second reinforcing plate 222 can share the load borne by the second mounting part 2121 and disperse stress, thereby reducing stress concentration in the second mounting part 2121 and thus reducing the risk of deformation and breakage of the second mounting part 2121; on the other hand, it can reduce the thickness of both the second mounting plate 212 and the second reinforcing plate 222 while improving structural strength. This reduces the processing difficulty of both components, thereby saving processing time and improving processing efficiency. Thirdly, by placing the second reinforcing plate 222 on the second mounting portion 2121, the size of the second reinforcing plate 222 can be reduced while minimizing the risk of deformation or breakage of the second mounting portion 2121 near the sleeve 23. This reduces the impact of the second reinforcing plate 222 on the overall weight of the battery box 101, thus reducing the impact of the battery device 100a's weight on the energy consumption and range of the vehicle 1000a when the battery box 101 is used in the battery device 100a of the vehicle 1000a. Furthermore, since the risk of deformation or breakage of the second mounting plate 212 towards the first mounting plate 211 is higher when mounted, placing the second reinforcing plate 222 on the side of the second mounting plate 212 facing the first mounting plate 211 further improves the tensile and deformation resistance of the first mounting portion 2111.

[0114] In some embodiments, the second reinforcing plate 222 includes a fixing portion 2221 and a supporting portion 2222, wherein the fixing portion 2221 is connected to the side wall 11. The second supporting portion 2222 is connected to one end of the fixing portion 2221 near the first mounting plate 211, and the second supporting portion 2222 is at least partially connected to the second mounting portion 2121.

[0115] By connecting the fixing part 2221 to the side wall 11 and connecting the second bearing part 2222 to the end of the fixing part 2221 near the first mounting plate 211, the second mounting part 2121 can be supported on the second bearing part 2222. The end of the fixing part 2221 away from the second bearing part 2222 extends away from the first mounting plate 211, which increases the contact area between the second reinforcing plate 222 and the side wall 11, thereby improving the connection strength and stability between the second reinforcing plate 222 and the side wall 11. This enhances the structural strength and stability of the second mounting part 2121 supported on the second bearing part 2222 of the second reinforcing plate 222, and reduces the risk of deformation or breakage of the second mounting part 2121.

[0116] In some embodiments, the second mounting plate 212 is spaced apart from the side wall 11 at one end corresponding to the region of the second support portion 2222 to form a slot 212b. One end of the fixing portion 2221 is inserted into the slot 212b through the first cavity 21a and extends to the end of the slot 212b away from the first cavity 21a. This increases the contact area between the second reinforcing plate 222 and the side wall 11, which helps to enhance the connection strength and stability between the second reinforcing plate 222 and the side wall 11. The second support portion 2222 is connected to the other end of the fixing portion 2221. The second support portion 2222 is at least partially corresponding to and connected to the second mounting portion 2121.

[0117] In some embodiments, the connection between the second support portion 2222 and the second mounting portion 2121 can be welding, riveting, bolting, snap-fitting, pinning, magnetic adsorption, adhesive bonding, etc., but is not limited to these.

[0118] In some embodiments, the connection area between the fixing part 2221 and the second bearing part 2222 is smoothly arranged, which can reduce the risk of stress overload in the connection area between the fixing part 2221 and the second bearing part 2222, thereby enhancing the structural strength of the second reinforcing plate 222 and improving the deformation resistance and tensile strength of the second reinforcing plate 222.

[0119] In some embodiments, please continue to refer to Figure 4 The second support portion 2222 includes a support body 2222a and two extension portions 2222b. The support body 2222a is connected to the second mounting plate 212 and is spaced apart from the first mounting plate 211. The two extension portions 2222b are connected to opposite ends of the support body 2222a along the second direction XX, and the extension portions 2222b extend away from the support body 2222a and bend toward the first mounting plate 211.

[0120] By providing extensions 2222b at opposite ends of the supporting body 2222a along the second direction XX, and extending the extensions 2222b away from the supporting body 2222a and bending towards the first mounting plate 211, so that the extensions 2222b form an arc-shaped structure, the moment of inertia of the overall cross section of the second supporting part 2222 can be increased, thereby improving the deformation resistance of the second supporting part 2222.

[0121] In some embodiments, please refer to Figures 8 to 9 The second load-bearing part 2222 also includes a support part 2222c, which is connected between the end of the extension part 2222b away from the load-bearing body 2222a and the first mounting plate 211.

[0122] The connection between the end of the support part 2222c away from the extension part 2222b and the first mounting plate 211 can be welding, riveting, bolting, snap-fitting, pinning, magnetic adsorption, adhesive bonding, etc., but is not limited to these.

[0123] By connecting the support portion 2222c to the end of the extension portion 2222b away from the load-bearing body 2222a and the first mounting plate 211, on the one hand, the support portion 2222c and the load-bearing body 2222a form an arc-shaped transition design through the extension portion 2222b, so that the stress borne by the load-bearing body 2222a can be smoothly transferred to the support portion 2222c through the extension portion 2222b, which can reduce the stress concentration between the load-bearing body 2222a and the support portion 2222c, thereby improving the deformation resistance and fatigue resistance of the second reinforcing plate 222; on the other hand, by connecting the support portion 2222c to the first mounting plate 211, the structural strength of the second reinforcing plate 222 and the first mounting plate 211 can be enhanced, thereby enhancing the overall structural strength of the mounting assembly 20.

[0124] In some embodiments, please continue to refer to Figure 4 The second mounting plate 212 protrudes toward the side away from the second reinforcing plate 222, forming a recess 212a on the side of the second mounting plate 212 toward the second reinforcing plate 222. The recess 212a is located on the side of the second mounting plate 212 near the side wall 11, and the second reinforcing plate 222 has a second reinforcing portion corresponding to the area of ​​the recess 212a.

[0125] The recess 212a is formed in the region of the second mounting plate 212 located on the side of the sleeve 23 near the side wall 11. The second reinforcing part may be provided in the second bearing part 2222 or in the second bearing part 2222 and the fixing part 2221. The first reinforcing part 2214 includes reinforcing ribs and / or reinforcing protrusions.

[0126] By forming a recess 212a on the side of the second mounting plate 212 facing the second reinforcing plate 222, the recess 212a is used to avoid the second reinforcing part of the second reinforcing plate 222. On the one hand, it can reduce the rigid interference between the second reinforcing part and the second mounting plate 212, and reduce the risk of wear, deformation and cracking of the second mounting plate 212. On the other hand, the setting of the second reinforcing part can enhance the structural strength of the second reinforcing plate 222 and improve the deformation resistance and tensile resistance of the second reinforcing plate 222.

[0127] In some embodiments, the second mounting portion 2121 extends along a second direction XX, and the second mounting portion 2121 includes a second mounting section 2123 and a second extension section 2124. The second mounting section 2123 has a plurality of second mounting portions 2121 spaced apart along the second direction XX. The second extension section 2124 is connected to one end of the second mounting section 2123 along the second direction XX, and the second extension section 2124 is connected to the first extension section 2115.

[0128] The second mounting section 2123 and the second extension section 2124 can be integrally formed, which can enhance the structural strength and stability between them. The second mounting section 2123 and the second extension section 2124 can be integrally formed by cold stamping, hot stamping, roll forming, extrusion forming, or other methods.

[0129] In some embodiments, one end of the second mounting section 2123 away from the second extension section 2124 may extend to one end of the sidewall 11 along the second direction XX, and one end of the second extension section 2124 away from the second mounting section 2123 may extend to the other end of the sidewall 11 along the second direction XX. The second mounting section 2123 and the first mounting section 2114 are correspondingly arranged and interconnected along the first direction ZZ, and the second extension section 2124 and the first extension section 2115 are correspondingly arranged and interconnected along the first direction ZZ.

[0130] In some embodiments, one end of the second mounting section 2123 away from the second extension section 2124 may extend to one of the two corner regions 14 of the box body 10 that are disposed opposite each other along the second direction XX, and one end of the second extension section 2124 away from the second mounting section 2123 may extend to the other of the two corner regions 14 of the box body 10 that are disposed opposite each other along the second direction XX.

[0131] The second mounting plate 212 is used to mount a plurality of second mounting parts 2121, which extend YY along a third direction. Each of the plurality of second mounting parts 2121 corresponds one-to-one with a plurality of first mounting parts 2111. Each second mounting part 2121 has an independent second reinforcing plate 222 on the side facing the first mounting plate 211, preventing stress between two adjacent second mounting parts 2121 from being transmitted through the second reinforcing plate 222. This not only reduces the risk of stress overload in adjacent second mounting parts 2222 due to stress overload in one second mounting part 2222, but also reduces the occurrence of resonance.

[0132] By providing a second extension section 2124 at one end of the second mounting section 2123 along the second direction XX, the contact area between the second mounting plate 212 and the box body 10 can be increased. This not only enhances the structural strength of the box body 10 in the area where the second mounting section 2123 is not connected, but also disperses the stress of the second mounting part 2121 to a wider area of ​​the box body 10, reducing stress concentration.

[0133] In some embodiments, please continue to refer to Figure 4 , Figure 7 and Figure 9 The sleeve 23 passes through the second mounting plate 212, the second reinforcing plate 222, the first mounting plate 211, and the first reinforcing plate 221. One end of the sleeve 23 is exposed on the side of the first reinforcing plate 221 away from the first mounting plate 211, and the other end is exposed on the side of the second mounting plate 212 away from the second reinforcing plate 222. One end of the sleeve 23 is connected to the side of the second mounting plate 212 away from the first mounting plate 211, and the other end of the sleeve 23 is connected to the side of the first reinforcing plate 221 away from the first mounting plate 211.

[0134] By configuring the sleeve 23 with both ends exposed, not only can the installation efficiency of the sleeve 23 be improved and the risk of the sleeve 23 coming off be reduced, but the compatibility and adaptability of the sleeve 23 can also be improved.

[0135] Since the second mounting plate 212 is located on the side of the second reinforcing plate 222 away from the first mounting plate 211, and the first reinforcing plate 221 is located on the side of the first mounting plate 211 away from the second mounting plate 212, by connecting one end of the sleeve 23 to the side of the second mounting plate 212 away from the first mounting plate 211 and the other end to the side of the first reinforcing plate 221 away from the first mounting plate 211, the obstruction of other components to the installation process of the sleeve 23 can be reduced, thereby improving the ease of operation when installing the sleeve 23 and thus improving the installation efficiency of the sleeve 23.

[0136] In some embodiments, one end of the sleeve 23 can be connected to the second mounting plate 212 and the other end to the first reinforcing plate 221 by welding; or, the two ends of the sleeve 23 can be connected to the second mounting plate 212 and the first reinforcing plate 221 respectively by snap-fit; or, connecting pieces can be provided at both ends of the sleeve 23, and the connecting pieces can be fixed to the second mounting plate 212 or the first reinforcing plate 221 by welding, bolt connection, riveting or other methods.

[0137] In some embodiments, the mounting assembly 21 includes a first mounting plate 211 and a second mounting plate 212. The first mounting plate 211 and the second mounting plate 212 are stacked and connected to each other along a first direction ZZ. The first mounting plate 211 is connected to the side wall 11 of the housing body 10 or to the side wall 11 and the bottom wall 12 connected to the side wall 11. The second mounting plate 212 is connected to the side wall 11. The sleeve 23 is axially perpendicular to the bottom wall 12, and the first mounting plate 211 is located below the second mounting plate 212. The reinforcing assembly 22 includes a third reinforcing plate (not shown), which is disposed on the side of the first mounting plate 211 near the second mounting plate 212.

[0138] By providing a third reinforcing plate on the side of the first mounting plate 211 close to the second mounting plate 212, the third reinforcing plate can not only enhance the structural strength of the first mounting plate 211, but also suppress the warping of the first mounting plate 211 toward the second mounting plate 212, thereby reducing the risk of the first mounting plate 211 becoming loose or falling off.

[0139] In some embodiments, the mounting assembly 21 includes a first mounting plate 211 and a second mounting plate 212. The first mounting plate 211 and the second mounting plate 212 are stacked and connected to each other along a first direction ZZ. The first mounting plate 211 is connected to the side wall 11 of the housing body 10 or to the side wall 11 and the bottom wall 12 connected to the side wall 11. The second mounting plate 212 is connected to the side wall 11. The sleeve 23 is axially perpendicular to the bottom wall 12, and the first mounting plate 211 is located below the second mounting plate 212. The reinforcing assembly 22 includes a fourth reinforcing plate (not shown), which is disposed on the side of the second mounting plate 212 facing away from the first mounting plate 211.

[0140] By providing a fourth reinforcing plate on the side of the second mounting plate 212 facing away from the first mounting plate 211, the fourth reinforcing plate can not only enhance the structural strength of the second mounting plate 212, but also suppress the warping of the second mounting plate 212 toward the first mounting plate 211, thereby reducing the risk of the first mounting plate 211 becoming loose or falling off.

[0141] In some embodiments, a first reinforcing plate 221 is disposed on the side of the first mounting plate 211 away from the second mounting plate 212, and a third reinforcing plate is disposed on the side of the first mounting plate 211 close to the second mounting plate 212, such that the first mounting plate 211 is sandwiched between the first reinforcing plate 221 and the third reinforcing plate. A second reinforcing plate 222 is disposed on the side of the second mounting plate 212 close to the first mounting plate 211, and a fourth reinforcing plate is disposed on the side of the second mounting plate 212 opposite to the first mounting plate 211, such that the second mounting plate 212 is sandwiched between the second reinforcing plate 222 and the fourth reinforcing plate.

[0142] This application further proposes a battery housing 101, which includes a housing body 10 and a mounting assembly 20, and the battery housing 101 can be used for a battery device 100a.

[0143] According to some embodiments of this application, the battery device 100a described above can be used in electrical equipment. With this configuration, by placing the reinforcing component 22 along the first direction ZZ on one side of the mounting component 21, and passing the sleeve 23 through the mounting component 21 and the reinforcing component 22, the orthographic projections of the mounting component 21 and the reinforcing component 22 along the first direction ZZ on the reference plane do not overlap with the orthographic projection of the sleeve 23 along the first direction ZZ on the reference plane. On the one hand, the placement of the reinforcing component 22 not only enhances the structural strength of the mounting component 21 and improves its tensile and deformation resistance, but also allows the reinforcing component 22 to share the load of the external components with the mounting component 21 and the sleeve 23, dispersing stress and reducing stress concentration. In the region where the mounting component 21 is close to the sleeve 23, the risk of deformation or breakage of the mounting component 21 can be reduced, thereby improving the reliability of the battery device 100a. On the other hand, by ensuring that the orthographic projection of the mounting component 21 and the reinforcing component 22 toward the first direction ZZ on the reference plane does not overlap with the orthographic projection of the sleeve 23 toward the first direction ZZ on the reference plane, the interference between the sleeve 23 and the mounting component 21 and the reinforcing component 22 along its axial direction can be reduced. This at least allows the mounting component 21 and the reinforcing component 22 to be adapted to sleeves 23 with different axial dimensions, thereby improving the adaptability and compatibility of the battery housing 101 with the sleeve 23.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, The battery device includes a battery cell and a battery housing, wherein the battery housing includes at least: The box body has a receiving space for accommodating the battery cell; The mounting assembly includes a mounting component, a reinforcing component, and a sleeve. The mounting component is connected to the side of the housing body facing away from the accommodating space. The reinforcing component is disposed on one side of the mounting component along a first direction. The sleeve passes through the mounting component and the reinforcing component, and the orthographic projections of the mounting component and the reinforcing component toward the first direction on a reference plane do not overlap with the orthographic projection of the sleeve toward the first direction on the reference plane; wherein, the first direction is parallel to the axial direction of the sleeve.

2. The battery device according to claim 1, characterized by The mounting assembly includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are stacked and connected to each other along the first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall. The second mounting plate is connected to the side wall. The reinforcing component includes a first reinforcing plate, which is disposed on one side of the first mounting plate; the axial direction of the sleeve is perpendicular to the bottom wall.

3. The battery device of claim 2, wherein, Along the first direction, the first mounting plate is located on the side of the second mounting plate closer to the bottom wall; The first mounting plate includes a first mounting part and two first connecting parts located on opposite sides of the first mounting part along the second direction; the second mounting plate includes a second mounting part and two second connecting parts located on opposite sides of the second mounting part along the second direction; the first mounting part and the second mounting part are spaced apart, and the first connecting part and the second connecting part are connected. The first mounting portion and the second mounting portion are used to mount the sleeve, and the first reinforcing plate is at least located on the side of the first mounting portion facing away from the second mounting plate; the second direction is perpendicular to the first direction and is parallel to the extension direction of the sidewall.

4. The battery device of claim 3, wherein The first mounting plate extends along the second direction, and the first mounting plate includes: The first mounting section is provided with a plurality of first mounting parts spaced apart along the second direction; The first extension section is connected to one end of the first mounting section along the second direction; The reinforcement component includes a plurality of first reinforcing plates, which are respectively disposed on the side of a plurality of first mounting portions of the first mounting plate facing away from the second mounting plate.

5. The battery device of claim 4, wherein, The first reinforcing plate, located near the first mounting portion of the first extension section, extends to the side of the first extension section opposite to the second mounting plate.

6. The battery device of claim 4, wherein The orthographic projection of the first extension section toward the flange portion of the box body along the first direction is located inside the edge of the flange portion away from the receiving space; And / or, the area of ​​the first mounting section without the first mounting part and the first connecting part, when projected along the first direction toward the flange, is located inside the edge of the flange away from the receiving space.

7. The battery device of claim 3, wherein The first mounting plate further includes a first transition portion connecting the first mounting part and the first connecting part; the first reinforcing plate includes: First load-bearing section; Two second transition portions are connected to opposite ends of the first support portion along the second direction, and a third connecting portion is provided at the end of the second transition portion away from the first support portion; The first bearing portion is connected to the first mounting portion, the third connecting portion is connected to the first connecting portion, and the second transition portion is spaced apart from the first transition portion.

8. The battery device of claim 2, wherein The first reinforcing plate is provided with a first reinforcing part.

9. The battery device according to any one of claims 4 to 8, characterized by, The reinforcing component further includes a second reinforcing plate, which is disposed on the side of the second mounting plate corresponding to the area of ​​the second mounting part facing the first mounting plate.

10. The battery device of claim 9, wherein, The second reinforcing plate includes: A fixing part is connected to the side wall; The second support portion is connected to one end of the fixing portion near the first mounting plate and extends to the side of the second mounting portion facing the first mounting plate. The second support portion is at least partially connected to the second mounting portion.

11. The battery device of claim 10, wherein, The second bearing part includes: The supporting body is connected to the second mounting plate and is spaced apart from the first mounting plate; Two extensions are connected to opposite ends of the support body along the second direction. The extensions extend away from the support body and bend toward the first mounting plate.

12. The battery device of claim 11, wherein, The second load-bearing part further includes a support part, which is connected between the end of the extension away from the load-bearing body and the first mounting plate.

13. The battery device of claim 9, wherein, The second mounting plate protrudes toward the side away from the second reinforcing plate, so as to form a recess on the side of the second mounting plate toward the second reinforcing plate; The recessed portion is located on the side of the second mounting plate near the side wall, and the second reinforcing plate has a second reinforcing portion corresponding to the area of ​​the recessed portion.

14. The battery device of claim 9, wherein, The second mounting portion extends along the second direction and includes: The second mounting section is provided with a plurality of second mounting parts spaced apart along the second direction; The second extension is connected to one end of the second mounting section along the second direction, and the second extension is connected to the first extension.

15. The battery device of claim 9, wherein, The sleeve passes through the second mounting plate, the second reinforcing plate, the first mounting plate, and the first reinforcing plate, with one end of the sleeve exposed on the side of the first reinforcing plate facing away from the first mounting plate, and the other end exposed on the side of the second mounting plate facing away from the second reinforcing plate. One end of the sleeve is connected to the side of the second mounting plate facing away from the first mounting plate, and the other end of the sleeve is connected to the side of the first reinforcing plate facing away from the first mounting plate.

16. The battery device of claim 1, wherein, The mounting assembly includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are stacked and connected to each other along the first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall. The second mounting plate is connected to the side wall. The axial direction of the sleeve is perpendicular to the bottom wall. The first mounting plate is located below the second mounting plate. The reinforcing component includes a third reinforcing plate, which is disposed on the side of the first mounting plate near the second mounting plate.

17. The battery device of claim 1, wherein, The mounting assembly includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are stacked and connected to each other along the first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall. The second mounting plate is connected to the side wall. The axial direction of the sleeve is perpendicular to the bottom wall. The first mounting plate is located below the second mounting plate. The reinforcing component includes a fourth reinforcing plate, which is disposed on the side of the second mounting plate opposite to the first mounting plate.

18. A battery pack, characterized by The battery housing includes: The box body has a receiving space for accommodating individual battery cells; The mounting assembly includes a mounting component, a reinforcing component, and a sleeve. The mounting component is connected to the side of the housing body facing away from the accommodating space. The reinforcing component is disposed on one side of the mounting component along a first direction. The sleeve passes through the mounting component and the reinforcing component, and the orthographic projections of the mounting component and the reinforcing component toward the first direction on a reference plane do not overlap with the orthographic projection of the sleeve toward the first direction on the reference plane; wherein, the first direction is parallel to the axial direction of the sleeve.

19. The battery pack of claim 18, wherein, The mounting assembly includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are stacked and connected to each other along the first direction. The first mounting plate is connected to the side wall of the box body or to the side wall and the bottom wall connected to the side wall. The second mounting plate is connected to the side wall. The reinforcing component includes a first reinforcing plate, which is disposed on one side of the first mounting plate; the axial direction of the sleeve is perpendicular to the bottom wall.

20. The battery pack of claim 19, wherein, Along the first direction, the first mounting plate is located on the side of the second mounting plate closer to the bottom wall; The first mounting plate includes a first mounting part and two first connecting parts located on opposite sides of the first mounting part along the second direction; the second mounting plate includes a second mounting part and two second connecting parts located on opposite sides of the second mounting part along the second direction; the first mounting part and the second mounting part are spaced apart, and the first connecting part and the second connecting part are connected. The first mounting portion and the second mounting portion are used to mount the sleeve, and the first reinforcing plate is at least located on the side of the first mounting portion facing away from the second mounting plate; the second direction is perpendicular to the first direction and is parallel to the extension direction of the sidewall.

21. The battery housing according to claim 20, characterized in that, The first mounting plate extends along the second direction, and the first mounting plate includes: The first mounting section is provided with a plurality of first mounting parts spaced apart along the second direction; The first extension section is connected to one end of the first mounting section along the second direction; The reinforcement component includes a plurality of first reinforcing plates, which are respectively disposed on the side of a plurality of first mounting portions of the first mounting plate facing away from the second mounting plate.

22. The battery pack of claim 21, wherein, The first reinforcing plate, located near the first mounting portion of the first extension section, extends to the side of the first extension section opposite to the second mounting plate.

23. The battery pack of claim 21, wherein, The orthographic projection of the first extension section toward the flange portion of the box body along the first direction is located inside the edge of the flange portion away from the receiving space; And / or, the area of ​​the first mounting section without the first mounting part and the first connecting part, when projected along the first direction toward the flange, is located inside the edge of the flange away from the receiving space.

24. The battery pack of any one of claims 20 to 23, wherein, The reinforcing component further includes a second reinforcing plate, which is disposed on the side of the second mounting plate facing the first mounting plate in the area corresponding to the second mounting part.

25. The battery pack of claim 24, wherein, The second reinforcing plate includes: A fixing part is connected to the side wall; The second support portion is connected to one end of the fixing portion near the first mounting plate and extends to the side of the second mounting portion facing the first mounting plate. The second support portion is at least partially connected to the second mounting portion.

26. The battery pack of claim 25, wherein, The second bearing part includes: The supporting body is connected to the second mounting plate and is spaced apart from the first mounting plate; Two extensions are connected to opposite ends of the support body along the second direction. The extensions extend away from the support body and bend toward the first mounting plate.

27. The battery pack of claim 26, wherein, The second load-bearing part further includes a support part, which is connected between the end of the extension away from the load-bearing body and the first mounting plate.

28. The battery pack of claim 24, wherein, The second mounting plate protrudes toward the side away from the second reinforcing plate, so as to form a recess on the side of the second mounting plate toward the second reinforcing plate; The recessed portion is located on the side of the second mounting plate near the side wall, and the second reinforcing plate has a second reinforcing portion corresponding to the area of ​​the recessed portion.

29. An electrical device, comprising: Includes the battery device as described in any one of claims 1 to 17.

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