Battery mounting brackets, chassis components and vehicles

Abstract

A battery mounting bracket, a frame assembly, and a vehicle are provided. The battery mounting bracket (10) includes a plurality of extensions (2) arranged at intervals, and a battery mounting space (4) is formed between two adjacent extensions (2) through the height direction Z of the extension (2). The battery mounting bracket (10) is provided with a battery mounting structure (3) for mounting a battery (30) in the battery mounting space (4).

Description

Technical Field

[0001] This application relates to the field of batteries, specifically to a battery mounting bracket, a frame assembly, and a vehicle. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery energy density affects the driving range per battery swap, which is beneficial for improvement. Utility Model Content

[0003] In view of the above problems, this application provides a battery mounting bracket, a frame assembly, and a vehicle that can improve the size energy density of the battery, thereby increasing the driving range of the vehicle on a single battery swap.

[0004] In a first aspect, this application provides a battery mounting bracket, which includes a plurality of extensions arranged at intervals, and a battery mounting space is formed between two adjacent extensions that extends through the height direction of the extensions. The battery mounting bracket is provided with a battery mounting structure for mounting a battery in the battery mounting space.

[0005] In the technical solution of this application embodiment, by setting the battery mounting space to extend through the height direction of the extension, the space utilization rate of the battery in the height direction of the extension can be improved, thereby increasing the size of the battery in the height direction of the extension. This is beneficial to improving the size energy density of the battery, thereby increasing the driving range of the vehicle on a single battery swap. Furthermore, by setting the battery mounting structure, the battery swapping efficiency can be improved. In addition, since the battery mounting space extends through the height direction of the extension, it is beneficial to heat dissipation of the battery and to reduce the weight of the battery mounting bracket, thus reducing the vehicle load on the battery mounting bracket.

[0006] In some embodiments, two extensions defining a battery mounting space are spaced apart in a first direction and connected by a main body, the main body being located on one side of the extensions in a second direction, the first direction and the second direction intersecting in a plane perpendicular to the height direction of the extensions.

[0007] In the above technical solution, two adjacent extensions can be connected through the main body. This makes the structure of the battery mounting bracket simpler and easier to design, and facilitates welding or integral molding. When the first direction is the length direction of the vehicle, multiple extensions are distributed at intervals along the length direction of the vehicle. This allows for the full utilization of the space along the length direction of the vehicle to arrange more extensions, thereby limiting the number of battery mounting spaces and mounting more batteries. This increases the battery size while also increasing the number of batteries mounted, improving the driving range of the vehicle per battery swap and reducing the number of battery swaps per unit mileage.

[0008] In some embodiments, the two extensions defining the battery mounting space are also connected by a reinforcement portion, which and the main body portion are positioned on opposite sides of the extension in a second direction.

[0009] In the above technical solution, by setting a reinforcing part, the two extensions that define the battery mounting space can be connected at both ends in the second direction through the main body and the reinforcing part, respectively. In this way, the structure around the battery mounting space is formed into a ring, which has higher structural strength, higher battery mounting reliability, and can protect the battery more comprehensively from the periphery. Moreover, the position of the battery mounting structure can be flexibly selected.

[0010] In some embodiments, at least one of the main body, extension, and reinforcement is provided with a battery mounting structure.

[0011] In the above technical solution, the battery mounting structure can be set in any one or more of the main body, extension and reinforcement. This makes the setting position of the battery mounting structure more flexible and convenient to set the position of the battery mounting structure according to the actual mounting requirements of the battery, thereby reducing the difficulty of arranging the battery mounting structure and improving the reliability and convenience of battery mounting.

[0012] In some embodiments, the battery mounting structure is located on the side of the extension facing the battery mounting space.

[0013] In the above technical solution, by arranging a battery mounting structure on the side of the extension facing the battery mounting space, the battery mounting structure corresponds to the specific battery mounting space it faces. This allows for the mounting of the battery in the designated battery mounting space, clearly defining the correspondence between the battery mounting structure and the battery mounting space. Extending the battery into the battery mounting space allows it to connect with the battery mounting structure facing that space, thus facilitating convenient battery mounting. Furthermore, when there are multiple battery mounting spaces, there is no interference between the battery mounting structures corresponding to different spaces. This ensures that the battery mounting structure for each space has sufficient space for flexible arrangement, making it easier and more reliable to mount the battery.

[0014] In some embodiments, the battery mounting structures are multiple, with at least two spaced apart along the second direction.

[0015] In the above technical solution, it is beneficial to make full use of the space in the second direction of the extension to arrange a larger number of battery mounting structures, thereby enhancing the mounting stability of the battery or increasing the number of batteries mounted in the battery mounting space.

[0016] In some embodiments, the extension is plate-shaped, and the thickness direction of the extension is a first direction, and the length direction of the extension is a second direction.

[0017] In the above technical solution, by setting the extension part as a plate and defining the first and second directions as described above, the battery mounting space can be located on one or both sides in the thickness direction of the extension part. This allows full use of the structural characteristics of the extension part to define the battery mounting space, resulting in a smaller space occupied by the extension part and a larger defined battery mounting space.

[0018] In some embodiments, the height of the extension tends to decrease in the second direction away from the main body.

[0019] In the above technical solution, by setting the height of the extension to decrease in the direction away from the main body in the second direction, the height of the end of the extension connected to the main body is relatively large, while the height of the end of the extension away from the main body is relatively small. This can enhance the connection strength between the extension and the main body, improve the reliability of the extension for battery mounting, and reduce the weight of the extension, thereby reducing the vehicle load.

[0020] In some embodiments, the battery mounting structure is located at the lower edge of the extension in the height direction, the lower edge of the extension extends along a horizontal line, and the upper edge of the extension tends to decrease in a direction away from the main body.

[0021] In the above technical solution, by setting the battery mounting structure at the lower edge of the extension in the height direction, and the lower edge of the extension extending along the horizontal line, it is beneficial that all battery mounting structures are located at the same height and are relatively low, thereby facilitating battery mounting operations, reducing the difficulty of battery mounting, saving space for battery swapping operations, and improving battery size and energy density.

[0022] In some embodiments, the extension is provided with reinforcing ribs and / or weight-reducing structures.

[0023] In the above technical solution, reinforcing ribs are added to enhance the structural strength of the extension, improve the stress-induced deformation of the extension, and increase the reliability of the extension for battery mounting. Weight-reducing structures are also incorporated to reduce the weight of the extension, facilitating a lightweight design.

[0024] In some embodiments, the battery mounting bracket includes a plurality of battery mounting spaces spaced apart along a first direction.

[0025] In the above technical solution, by setting the battery mounting rack to include multiple battery mounting spaces spaced apart along a first direction, the battery mounting rack can be equipped with the function of mounting multiple batteries in the first direction, that is, realizing the multi-pack mounting function, thereby increasing the driving range of the vehicle on a single battery swap and reducing the number of battery swaps per unit mileage. Furthermore, when the battery mounting rack is installed on the vehicle frame and the first direction is set as the vehicle's length direction, since the battery mounting rack defines multiple battery mounting spaces arranged along the first direction, the battery mounting rack has the function of mounting multiple batteries along the vehicle's length direction. This increases the number of batteries that can be placed on the vehicle, which is beneficial for increasing the driving range of the vehicle on a single battery swap.

[0026] In some embodiments, at least one extension is a common extension, and two battery mounting spaces spaced apart along a first direction are separated by the common extension.

[0027] In the above technical solution, when the number of battery mounting spaces spaced at intervals along the first direction is fixed, the number of extensions spaced at intervals along the first direction can be reduced, thereby helping to reduce costs and vehicle load.

[0028] In some embodiments, battery mounting structures are arranged on both sides of the battery mounting space facing both sides of the common extension.

[0029] In the above technical solution, by arranging battery mounting structures on both sides of the battery mounting space facing both sides of the common extension, the difficulty of setting up the battery mounting structure is reduced.

[0030] In some embodiments, the battery mounting structures on both sides of the common extension are misaligned in their orthographic projections onto a projection plane perpendicular to the first direction.

[0031] In the above technical solution, by setting the orthographic projection misalignment of the battery mounting structures on both sides of the common extension on the projection plane perpendicular to the first direction, the stress distribution of the common extension is made more reasonable. When the batteries in the battery mounting spaces on both sides of the common extension are connected to the battery mounting structures on both sides of the common extension, stress concentration can be reduced, which can lead to deformation, breakage and other problems in the common extension, thereby improving the service life of the common extension and enhancing the mounting reliability of the batteries.

[0032] In some embodiments, battery mounting structures are provided on the extensions on both sides of the battery mounting space in the first direction.

[0033] In the above technical solution, the extensions on both sides of the battery mounting space in the first direction can both serve to support the battery in the battery mounting space. The battery mounting structures on both sides can distribute the force to reduce stress concentration and thus reduce problems such as deformation and breakage of the extensions, thereby improving the service life of the extensions and improving the reliability of battery mounting.

[0034] In some embodiments, the battery mounting structures on both sides of the battery mounting space in the first direction are misaligned in their orthographic projections onto a projection plane perpendicular to the first direction.

[0035] In the above technical solution, by setting the battery mounting structures on both sides of the battery mounting space to be misaligned in orthographic projection on a projection plane perpendicular to the first direction, it is further beneficial to distribute the force on the battery mounting structures on both sides, and further improve the problems of deformation and breakage of the extension caused by stress concentration. In addition, when the common extension has battery mounting structures on both sides in the first direction, and the battery mounting structures on both sides of the common extension are misaligned in orthographic projection on a projection plane perpendicular to the first direction, and the battery mounting structures on both sides of the battery mounting space in the first direction are misaligned in orthographic projection on a projection plane perpendicular to the first direction, multiple extensions can be constructed with the same structure, which is beneficial to simplify the structure, facilitate processing, reduce costs, and improve assembly efficiency.

[0036] In some embodiments, multiple extensions defining multiple battery mounting spaces spaced apart along a first direction are connected to the same main body.

[0037] In the above technical solution, multiple extensions spaced apart along the first direction can be connected using the same main body to reduce the assembly difficulty of the multiple extensions.

[0038] In some embodiments, the main body is connected to a plurality of extensions spaced apart along the first direction on both sides in the second direction.

[0039] In the above technical solution, by setting multiple extensions that are spaced apart along the first direction to be connected to the two sides of the main body in the second direction, both sides of the main body in the second direction have the function of accommodating and protecting the battery. When the extensions have battery mounting structures, both sides of the main body in the second direction also have the ability to mount batteries. This can make full use of the size of the battery mounting rack in the second direction to increase the number of batteries that the battery mounting rack can mount, thereby making full use of the space of the battery mounting rack in the second direction and improving the driving range of the vehicle on a single battery swap.

[0040] In some embodiments, the extensions on both sides of the main body are provided one-to-one in a second direction, and the two extensions provided in a corresponding manner have the same length extension direction and their orthographic projections along the length extension direction coincide.

[0041] In the above technical solution, the aforementioned arrangement ensures that the battery mounting spaces defined by the extensions on both sides of the main body in the second direction are of the same size and corresponding in position. Therefore, when installing large-sized and relatively regularly shaped batteries, the two sides of the battery can respectively cooperate with the two battery mounting spaces corresponding to the two sides of the main body in the second direction. This allows the two battery mounting spaces on both sides of the main body to be used together to install a large-sized battery, which helps to improve the energy density of the installed battery. Furthermore, when the extensions have battery mounting structures, the two extensions corresponding in position along the second direction can respectively bear the load on both sides of the large-sized battery, thereby improving the battery's force balance and mounting stability.

[0042] In some embodiments, the main body includes a beam clearance groove having an opening extending through in a first direction.

[0043] In the above technical solution, by setting the vehicle beam clearance groove to have an opening that runs through the first direction, a part of the vehicle beam can extend into the vehicle beam clearance groove, so that the vehicle beam clearance groove can avoid the vehicle beam, avoid interference between the battery mounting bracket and the vehicle beam, improve the tightness of the fit between the battery mounting bracket and the vehicle beam, and facilitate the use of the space near the vehicle beam to install the battery, thereby increasing the size and size energy density of the battery.

[0044] In some embodiments, the main body includes a first main body wall and two second main body walls, the two second main body walls being arranged along a first direction and respectively connected to the two ends of the first main body wall along a second direction, so as to form a top-open vehicle beam clearance groove between the two second main body walls and the first main body wall.

[0045] In the above technical solution, by setting two second main walls that are arranged along the first direction and respectively connected to the two ends of the first main wall along the second direction, the extension direction of the beam avoidance groove is defined so that it extends along the first direction. Furthermore, by forming a beam avoidance groove with an open top between the two second main walls and the first main wall, the design and molding difficulty of the beam avoidance groove is reduced, and the assembly difficulty of the battery mounting bracket to the vehicle frame is reduced.

[0046] In some embodiments, the extension is connected to the second body wall and is located on the side of the second body wall away from the first body wall in a second direction.

[0047] In the above technical solution, the extension is connected to the second main body wall, which can increase the length of the extension in the second direction while avoiding interference between the extension and the vehicle beam, thereby facilitating the expansion of the battery mounting space in the second direction. It also facilitates the connection between the extension and the main body.

[0048] In some embodiments, at least one of the main body and the extension has a beam connection structure.

[0049] In the above technical solution, since the main body cooperates with the vehicle beam through the vehicle beam avoidance groove, both the main body and the extension can have a part close to the vehicle beam. In this way, by setting a vehicle beam connection structure to connect to the vehicle beam, it is easy to install the battery mounting bracket to the vehicle frame.

[0050] In some embodiments, the battery mounting bracket is used in a vehicle, with the first direction being the length direction of the vehicle and the width direction being the second direction. In the length direction of the vehicle, the total length of the battery mounting bracket is R, and the length of the battery mounting space is Y1. Y1 satisfies: 620mm ≤ Y1 ≤ 720mm; R satisfies: 700mm ≤ R ≤ 900mm, or 1500mm ≤ R ≤ 1700mm, or 2300mm ≤ R ≤ 2500mm, or 3100mm ≤ R ≤ 3300mm. In the width direction of the vehicle, the total width of the battery mounting bracket is P, and the width of the battery mounting space is N1. N1 satisfies: 690mm ≤ N1 ≤ 815mm; P satisfies: 2300mm ≤ P ≤ 2550mm.

[0051] In some embodiments, in the second direction, the minimum width between the two second main body walls is N2, and N2 satisfies: 660mm≤N2≤680mm.

[0052] Secondly, this application provides a vehicle frame assembly, which includes a vehicle frame and a battery mounting bracket as described in any of the above embodiments. The battery mounting bracket is used to mount a battery to the vehicle frame, and the height direction of the extension is the height direction of the vehicle frame.

[0053] In the above technical solution, when the battery is installed on the vehicle frame through the battery mounting bracket, the battery mounting space in the height direction of the vehicle frame can be expanded, so as to mount batteries with larger height dimensions on the battery mounting bracket, thereby increasing the driving range of the vehicle on a single battery swap.

[0054] In some embodiments, the battery mounting bracket is disposed at the bottom of the vehicle frame, the vehicle frame including a beam, at least one side of the beam having an extension in the width direction, and at least a portion of the extension being higher than the bottom surface of the beam.

[0055] In the above technical solution, the bottom space of the vehicle frame can be fully utilized to arrange the extension and battery mounting space, so as to mount larger batteries on the battery mounting rack, thereby increasing the driving range of the vehicle on a single battery swap.

[0056] In some embodiments, the beam has multiple extensions on both sides in the width direction, and multiple battery mounting spaces arranged along the length direction of the beam are provided on both sides in the width direction.

[0057] In the above technical solution, the battery mounting rack can make fuller use of the space on both sides of the width of the vehicle beam, so as to hang larger batteries on the battery mounting rack, thereby increasing the driving range of the vehicle on a single battery swap.

[0058] Thirdly, this application provides a vehicle including a battery and a frame assembly of any of the above embodiments, wherein at least a portion of the battery is housed in a battery mounting space.

[0059] In the above technical solution, since the battery mounting space runs through the height of the vehicle, when at least part of the battery is housed in the battery mounting space, the height of the battery can be increased while ensuring the battery's ground clearance, thereby increasing the battery's energy density and improving the vehicle's range per battery swap.

[0060] In some embodiments, the battery includes an upper battery portion and a lower battery portion, the upper battery portion being housed in a battery mounting space, and a mounting structure being provided between the upper and lower battery portions, the mounting structure being detachably connected to the battery mounting structure.

[0061] In the above technical solution, when the battery is mounted on the battery mounting rack, the upper part of the battery can extend into the battery mounting space. The extension can provide some protection for the upper part of the battery, thereby reducing the risk of battery damage and extending the battery's service life. At the same time, the height of the extension can be less than the height of the battery, which can reduce the height of the extension and thus reduce the weight and cost of the battery mounting rack. Moreover, setting the mounting structure between the upper and lower parts of the battery makes it possible for the battery mounting structure to be located at the lower edge of the extension, which is beneficial for battery swapping operations.

[0062] In some embodiments, in the spacing direction of the extension, the size of the upper part of the battery is smaller than the size of the lower part of the battery, so as to form a stepped surface between the upper part and the lower part of the battery, the stepped surface stopping at the bottom of the extension.

[0063] In the above technical solution, during actual battery installation, when the upper part of the battery is inserted into the battery mounting space from bottom to top, the bottom of the extension and the stop surface of the step can be used to guide the battery to be properly installed, thus preventing the battery from extending too far into the battery mounting space and causing it to be squeezed and impacted against the vehicle floor, thereby protecting the battery. Furthermore, setting the lower part of the battery to be larger than the upper part can further increase the overall battery size to a certain extent, thereby further improving the battery's size energy density.

[0064] In some embodiments, the battery includes two battery sides and a battery center. In the width direction of the vehicle frame, the two battery sides are located on both sides of the battery center. The top surface of the battery center is lower than the top surface of the battery sides to form a clearance groove that extends through the length direction of the vehicle frame and is open at the top to avoid a vehicle beam between the two battery sides and the battery center. At least one of the battery sides and the battery center is detachably connected to a battery mounting structure.

[0065] In the above technical solution, the battery has a clever structure. By avoiding the vehicle beam, it makes full use of the space on both sides of the width of the vehicle beam, thereby increasing the overall size of the battery and improving the size energy density of the battery. At the same time, at least one of the battery side and the battery center is detachably connected to the battery mounting structure, which helps to improve the design flexibility of the battery.

[0066] In some embodiments, the flatness of the contact interface between the battery and the battery mounting bracket is less than or equal to 4 mm.

[0067] In some embodiments, the battery dimension L along the length direction of the vehicle satisfies: 700mm≤L≤900mm, or 1500mm≤L≤1700mm, or 2300mm≤L≤2500mm, or 3100mm≤L≤3300mm; the battery dimension W along the width direction of the vehicle satisfies: 2300mm≤W≤2550mm; and the total height H of the battery satisfies: H≤680mm, or 580mm≤H≤780mm.

[0068] In some embodiments, the length dimension L1 of the upper part of the battery satisfies: 600mm≤L1≤700mm; the width dimension W1 of the upper part of the battery on the side of the battery satisfies: W1≤805mm; the width dimension W2 of the upper part of the battery in the center of the battery satisfies: W2≤640mm; the height dimension H1 of the upper part of the battery on the side of the battery satisfies: H1≤300mm; and the height dimension H2 of the upper part of the battery in the center of the battery satisfies: H2≤150mm.

[0069] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0070] 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:

[0071] Figure 1 This is a schematic diagram of the vehicle structure according to some embodiments of this application;

[0072] Figure 2 This is an exploded structural diagram of a battery according to some embodiments of this application;

[0073] Figure 3 This is a schematic diagram illustrating the assembly of the vehicle frame assembly and the battery according to some embodiments of this application;

[0074] Figure 4 This is a schematic diagram of the structure of a frame assembly according to some embodiments of this application;

[0075] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0076] Figure 6 This is a schematic diagram of the assembly of the vehicle frame assembly and the battery from another perspective, according to one embodiment of this application.

[0077] Figure 7 This is a schematic diagram of a battery according to one embodiment of this application;

[0078] Figure 8 for Figure 3 Enlarged view of point B in the middle;

[0079] Figure 9 A schematic diagram of a battery according to another embodiment of this application;

[0080] Figure 10 for Figure 3 A magnified view of a portion of the image;

[0081] Figure 11 This is a schematic diagram of a vehicle according to some embodiments of this application;

[0082] Figure 12 for Figure 11 A bottom view of the vehicle in the middle;

[0083] Figure 13 for Figure 12 Sectional view at EE;

[0084] Figure 14 for Figure 12 Sectional view at FF;

[0085] Figure 15 This is a frontal projection view of a battery mounting bracket according to some embodiments of this application;

[0086] Figure 16 This is a cross-sectional view of a battery mounting bracket according to some embodiments of this application.

[0087] Reference numerals: Vehicle 1000, Frame assembly 100, Battery mounting bracket 10, Beam 20, Longitudinal beam 201, Crossbeam 202, Battery 30, Upper battery 30a, Lower battery 30b, Mounting structure 30c, Step surface 30d, Battery side 30e, Central battery 30f, Clearance groove 30g, Housing 301, First part 3011, Second part 3012, Battery cell 302, Controller 40, Motor 50, Frame 60, Main body 1, First direction X, First main body wall 11, Second main body wall 12, Beam clearance groove 13, Beam connection structure 14, Extension 2, Second direction Y, Height direction of extension Z, Common extension 2a, Mounting edge 21, Reinforcing rib 22, Weight reduction structure 23, Battery mounting structure 3, Battery mounting space 4, Reinforcing part 5. Detailed Implementation

[0088] 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.

[0089] 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.

[0090] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0091] 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.

[0092] 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, X and / or Y can represent: X existing alone, X and Y existing simultaneously, and Y existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0093] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0094] In the description of the embodiments of this application, the technical terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose 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.

[0095] In the description of the embodiments of this application, unless otherwise expressly specified and limited, 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 direct connection or an indirect connection through an intermediate 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.

[0096] Judging from the current market situation, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of the application areas of power batteries, the market demand is also constantly increasing.

[0097] In some vehicles using related technologies, a mounting frame is installed under the vehicle. The power battery is located at the bottom of the vehicle and installed within the mounting frame. The mounting frame consists of two parts: a lower frame and an upper frame. The upper frame connects to the vehicle frame, and the lower frame holds the battery. The lower and upper frames are quick-release connected. During battery swapping, the lower frame is removed from the bottom of the upper frame, the depleted battery is taken out, and the fully charged battery is installed in the lower frame. The lower frame is then reinstalled onto the upper frame, thus completing the battery swapping operation. However, this type of mounting frame has low swapping efficiency. Furthermore, since the mounting frame is external to the battery, it occupies a significant amount of space in the vehicle's height direction. Given limited ground clearance under the vehicle and the need to maintain sufficient battery height, this restricts the battery's dimensions in the vehicle's height direction, making it difficult to improve the battery's energy density. Additionally, the mounting frame is heavy, placing a significant burden on the vehicle.

[0098] Therefore, this application proposes a battery mounting bracket, wherein the battery mounting bracket includes a plurality of extensions arranged at intervals, and a battery mounting space is formed between two adjacent extensions, extending through the height direction of the extensions. The battery mounting bracket is provided with a battery mounting structure for mounting the battery in the battery mounting space.

[0099] When using such a battery mounting bracket to install the battery in a vehicle, since the battery mounting space is continuous along the height direction of the extension, meaning that neither end of the battery mounting space along the height direction of the extension has a structural obstruction from the battery mounting bracket, when the height direction of the extension is set to be consistent with the height direction of the vehicle, and the battery is installed in the battery mounting space, the battery mounting bracket will not occupy the space of the battery in the height direction of the vehicle. This is beneficial to increasing the size of the battery in the height direction of the vehicle, increasing the size energy density of the battery, and ensuring the battery's ground clearance, thus ensuring the vehicle's passability.

[0100] Furthermore, the battery mounting bracket is equipped with a battery mounting structure for attaching the battery to the battery mounting space. This eliminates the need to disassemble the battery mounting bracket into two parts; the connection and disconnection of the battery to the battery mounting structure allows for rapid battery swapping, improving swapping efficiency. Moreover, since the battery mounting space extends continuously along the height of the extension, the battery is unobstructed on both sides in the vehicle's height direction by the battery mounting bracket. This allows the battery to be directly inserted into the battery mounting space from bottom to top and connected to the battery mounting structure, further enhancing the convenience of battery swapping.

[0101] Furthermore, designing the battery mounting space to extend through the height of the extension ensures that the battery is unobstructed by battery mounting brackets on both sides in the vehicle's height direction. This facilitates battery heat dissipation and reduces the weight of the battery mounting brackets, thus lessening their load on the vehicle. Moreover, the portion of the battery housed within the battery mounting space is protected by the two extensions that define the space, thereby improving battery operational reliability.

[0102] In short, with the increasing demand for battery placement space and vehicle range per battery swap, the battery mounting rack of this application embodiment can expand the battery mounting space in the vehicle's height direction. This is beneficial to improving the space utilization rate in the vehicle's height direction while ensuring the battery's ground clearance, thereby improving the battery's dimensional energy density and increasing the vehicle's range per battery swap.

[0103] The battery disclosed in this application can be used in electrical devices that use batteries as a power source or in various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0104] For ease of explanation, the following embodiments will use a vehicle 1000 as an example.

[0105] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery 30 is disposed inside the vehicle 1000, and the battery 30 can be located at the bottom, front, or rear of the vehicle 1000. The battery 30 can be used to power the vehicle 1000; for example, the battery 30 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 40 and a motor 50. The controller 40 is used to control the battery 30 to supply power to the motor 50, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0106] In some embodiments of this application, the battery 30 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0107] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery 30 provided in some embodiments of this application. The battery 30 includes a housing 301 and battery cells 302, with the battery cells 302 housed within the housing 301. The housing 301 provides space for the battery cells 302, and can have various structures. In some embodiments, reference is made to... Figure 2 The housing 301 may include a first part 3011 and a second part 3012, which overlap each other, defining a space for accommodating the battery cell 302. The second part 3012 may be a hollow structure with an open end, and the first part 3011 may be a plate-like structure, covering the open end of the second part 3012 so that the first part 3011 and the second part 3012 together define the space. Alternatively, both the first part 3011 and the second part 3012 may be hollow structures with an open end on one side, with the open end of the first part 3011 covering the open end of the second part 3012. Of course, the housing 301 formed by the first part 3011 and the second part 3012 can be of various shapes, such as a cylinder or a cuboid.

[0108] The battery 30 may include multiple battery cells 302, which can be connected in series, parallel, or a combination thereof. A combination of series and parallel connections means that multiple battery cells 302 are connected in both series and parallel configurations. Multiple battery cells 302 can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the multiple battery cells 302 is housed within a housing 301. Alternatively, the battery 30 can be composed of multiple battery cells 302 first connected in series, parallel, or a combination thereof to form a battery module, and then these modules are connected in series, parallel, or a combination thereof to form a whole, which is also housed within the housing 301. The battery 30 may also include other structures; for example, it may include a busbar for electrical connection between the multiple battery cells 302.

[0109] In this application, the battery cell 302 may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to this. The battery cell 302 may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to this. The battery cell 302 is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and the embodiments of this application are not limited to this.

[0110] The battery cell 302 includes a casing, an electrode assembly, and an electrolyte. The casing houses the electrode assembly and the electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell 302 primarily functions by the movement of metal ions between the positive and negative electrode plates. The separator is not limited in material; for example, it can be made of polypropylene or polyethylene.

[0111] A positive electrode typically includes a positive current collector and a positive active material layer. The positive active material layer is directly or indirectly coated onto the positive current collector. The positive current collector without a positive active material layer protrudes from the one with a positive active material layer, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive current collector can be aluminum, and the material of the positive active material layer can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc.

[0112] A negative electrode typically includes a negative current collector and a negative active material layer. The negative active material layer is directly or indirectly coated onto the negative current collector. The negative current collector without a negative active material layer protrudes from the negative current collector with a negative active material layer, and the negative current collector without a negative active material layer serves as the negative electrode tab. The material of the negative current collector can be copper, and the material of the negative active material layer can be carbon or silicon, etc.

[0113] To ensure that a large current can be passed without melting, multiple positive electrode tabs are stacked together, and multiple negative electrode tabs are stacked together. The electrode assembly can be a wound structure or a stacked structure, and the embodiments of this application are not limited to these.

[0114] like Figure 1 As shown, this application embodiment provides a battery mounting bracket 10, which is used to mount a battery 30 to the frame 60 of a vehicle 1000.

[0115] like Figure 3 and Figure 4 As shown, the battery mounting bracket 10 includes a plurality of extensions 2 arranged at intervals, and a battery mounting space 4 is formed between two adjacent extensions 2, which extends through the height direction Z of the extension 2. The battery mounting bracket 10 is provided with a battery mounting structure 3 for mounting the battery 30 in the battery mounting space 4.

[0116] It is worth noting that the battery mounting bracket 10 in this application embodiment can be used for chassis-based battery swapping of vehicle 1000. Chassis-based battery swapping refers to a method of replenishing vehicle energy by flexibly replacing the battery swapping system installed under the vehicle chassis. The swappable battery system refers to the power battery system (hereinafter referred to as battery 30) that is completely replaced during the battery swapping process of vehicle 1000. Exemplarily, the battery swapping system generally includes: a power battery, a battery management system, a battery swapping electrical interface, a battery swapping cooling interface, and a battery swapping mechanical interface, etc., and can be charged and discharged in a non-vehicle-mounted state. The terminology and definitions in this application embodiment can be referenced in GB / T 19596 Electric Vehicle Terminology.

[0117] The phrase "the battery mounting bracket 10 is provided with a battery mounting structure 3 for mounting the battery 30 in the battery mounting space 4" refers to the following: the battery mounting bracket 10 is provided with a battery mounting structure 3 for connecting the battery 30. When the battery 30 is connected to the battery mounting structure 3, at least a portion of the battery 30 can be housed within the battery mounting space 4, presenting a mounted state. At this time, the portion of the battery 30 housed within the battery mounting space 4 can be protected by the two extensions 2 that define the battery mounting space 4, thereby improving the operational reliability of the battery 30. When the battery mounting bracket 10 includes multiple battery mounting spaces 4, it can improve problems such as mutual collision and heat transfer between batteries 30 in adjacent battery mounting spaces 4. Of course, the battery mounting bracket 10 may also include only one battery mounting space 4.

[0118] "The battery mounting space 4 extends through the extension 2 along the height direction Z" means that the structural shielding on the battery mounting bracket 10 is open at both ends of the extension 2 in the height direction Z, where the height direction Z can be perpendicular to the thickness direction of the extension 2 (e.g., Figure 4 The first direction X shown) and the length direction of the extension 2 (e.g.) Figure 4 The direction shown is the second direction Y). In this way, the space utilization of the battery 30 in the height direction Z of the extension 2 can be improved, thereby increasing the size of the battery 30 in the height direction Z of the extension 2, which is beneficial to improving the size energy density of the battery 30.

[0119] The battery mounting structure 3 can be disposed on the extension 2, or it can be disposed elsewhere; this is not limited here. The distribution, quantity, and structural form of the battery mounting structures 4 can be flexibly designed to meet the mounting strength requirements of the large-size battery 30. The structure of the battery mounting structure 3 is not limited; for example, it can include, but is not limited to, mounting slots, mounting holes, mounting protrusions, mounting pins, or mounting screws, etc., and this is not limited here.

[0120] The arrangement direction of the plurality of extensions 2 at intervals is not limited. For example, the plurality of extensions 2 are arranged along the thickness direction of the extensions 2 (e.g., ...). Figure 4 The first direction X) shown is distributed at intervals, but the thickness direction of the extension 2 can be set to be consistent with the width direction of the vehicle 1000, or the thickness direction of the extension 2 can also be set to be consistent with the length direction of the vehicle 1000, which is not limited here. In addition, the number of extensions 2 is not limited. For example, there can be two extensions 2, and a battery mounting space 4 is formed between the two extensions 2, or there can be more extensions 2 to define multiple battery mounting spaces 4. When there are multiple battery mounting spaces 4, at least one battery mounting structure 3 can be provided for each battery mounting space 4 so that a battery 30 can be mounted in each battery mounting space 4.

[0121] For example, when the battery mounting bracket 10 is used to install the battery 30 on the vehicle 1000, the height direction Z of the extension 2 is consistent with the height direction of the vehicle 1000. Since the battery mounting space 4 is through along the height direction Z of the extension 2, that is, neither end of the battery mounting space 4 along the height direction Z of the extension 2 has the structural obstruction of the battery mounting bracket 10. When the battery 30 is installed in the battery mounting space 4, the battery mounting bracket 10 and the battery mounting structure 3 on it will not occupy the space of the battery 30 in the vehicle height direction. This is beneficial to increase the size of the battery 30 in the vehicle height direction, increase the size energy density of the battery 30, thereby increasing the driving range of the vehicle on a single battery swap, and ensuring the ground clearance of the battery 30 to ensure the vehicle's passability.

[0122] Furthermore, the battery mounting bracket 10 is equipped with a battery mounting structure 3 for mounting the battery 30 in the battery mounting space 4. This eliminates the need to disassemble the battery mounting bracket 10 into two parts; the battery 30 can be directly connected and disconnected from the battery mounting structure 3 for rapid battery swapping, thus improving swapping efficiency. Moreover, since the battery mounting space 4 extends through the extension 2 along the height direction Z, the battery 30 is not obstructed by the battery mounting bracket 10 on either side in the vehicle height direction. This allows the battery 30 to be directly inserted into the battery mounting space 4 from bottom to top and connected to the battery mounting structure 3, further enhancing the convenience of battery swapping.

[0123] Furthermore, by configuring the battery mounting space 4 to extend through the extension 2 along the height direction Z, the battery 30 is not obstructed by the battery mounting bracket 10 on either side in the vehicle height direction. This facilitates heat dissipation of the battery 30 and reduces the weight of the battery mounting bracket 10, thus lowering its load on the vehicle. Moreover, the portion of the battery 30 housed within the battery mounting space 4 is protected by the two extensions 2 that define the battery mounting space 4, thereby improving the operational reliability of the battery 30.

[0124] In short, given the increasing demand for space to accommodate the battery 30 and the driving range of a vehicle on a single battery swap, the battery mounting bracket 10 of this application embodiment can expand the mounting space of the battery 30 in the vehicle height direction. This is beneficial to improving the space utilization rate in the vehicle height direction while ensuring the ground clearance of the battery 30, thereby improving the size energy density of the battery 30 and increasing the driving range of the vehicle on a single battery swap.

[0125] In some embodiments, please refer to Figure 4 The two extensions 2 that define the battery mounting space 4 are spaced apart in the first direction X and connected by the main body 1. The main body 1 is located on one side of the extension 2 in the second direction Y. The first direction X and the second direction Y intersect in a plane perpendicular to the height direction Z of the extension 2. The intersection can be an acute angle, a right angle, or an obtuse angle.

[0126] This allows two adjacent extensions 2 to be connected through the main body 1, making the structure of the battery mounting bracket 10 simpler, easier to design, and easier to weld or form as a single piece.

[0127] For example, when the first direction X is the length direction of the vehicle 1000 and the second direction Y is the width direction of the vehicle 1000, the multiple extensions 2 are spaced apart along the length direction of the vehicle 1000. This allows for the full utilization of the space along the length direction of the vehicle 1000 to arrange more extensions 2, thereby defining a larger number of battery mounting spaces 4 and mounting a larger number of batteries 30. This increases the height of the battery 30 while also increasing the number of batteries 30 mounted, improving the driving range of the vehicle 1000 per battery swap, reducing the number of battery swaps per unit mileage, and reducing the space occupied by the batteries 30 and battery mounting brackets 10 in the width direction of the vehicle 1000.

[0128] In some embodiments, please refer again Figure 4 The two extensions 2 that define the battery mounting space 4 are also connected by a reinforcing part 5. The reinforcing part 5 and the main body 1 are respectively placed on both sides of the extension 2 in the second direction Y.

[0129] This allows the two ends of the two extensions 2 defining the battery mounting space 4 in the second direction Y to be connected via the main body 1 and the reinforcing part 5, respectively. This creates a ring-shaped structure around the battery mounting space 4, resulting in higher structural strength, greater reliability in mounting the battery 30, more comprehensive protection of the battery 30 from the periphery, and flexible selection of the position of the battery mounting structure 3.

[0130] In some embodiments, at least one of the main body 1, the extension 2, and the reinforcing part 5 is provided with a battery mounting structure 3.

[0131] Wherein, "at least one of the main body 1, extension 2 and reinforcing part 5 is provided with a battery mounting structure 3" includes, but is not limited to, the main body 1 being provided with a battery mounting structure 3; or the extension 2 being provided with a battery mounting structure 3; or the reinforcing part 5 being provided with a battery mounting structure 3; or the battery mounting structure 3 may be provided in any two or more of the main body 1, extension 2 and reinforcing part 5.

[0132] This makes the placement of the battery mounting structure 3 more flexible, allowing the position of the battery mounting structure 3 to be set according to the actual mounting requirements of the battery 30, thereby reducing the difficulty of arranging the battery mounting structure 3 and improving the mounting reliability and convenience of the battery 30.

[0133] For example, when the battery mounting bracket 10 is used to mount the battery 30 onto the vehicle 1000, the first direction X is set as the length direction of the vehicle 1000, and the battery mounting structure 3 is disposed on the extension 2. At this time, neither the battery mounting structure 3 nor the extension 2 occupies the space of the battery 30 in the width direction of the vehicle 1000, thereby increasing the size of the battery mounting space 4 in the width direction of the vehicle 1000 and increasing the size of the battery 30 in the width direction of the vehicle 1000, which is beneficial to improving the size energy density of the battery 30. Moreover, setting the first direction X as the length direction of the vehicle 1000, since the length space of the vehicle 1000 is relatively large, is also beneficial to increasing the size or number of battery mounting spaces 4 in the length direction of the vehicle 1000, thereby further improving the size energy density or number of batteries 30.

[0134] In some embodiments, the battery mounting structure 3 is provided on the side of the extension 2 facing the battery mounting space 4.

[0135] Therefore, by arranging the battery mounting structure 3 on the side of the extension 2 facing the battery mounting space 4, the battery mounting structure 3 corresponds to the specific battery mounting space 4 it faces, and is used to mount the battery 30 in that battery mounting space 4. This clearly defines the correspondence between the battery mounting structure 3 and the battery mounting space 4. Inserting the battery 30 into the battery mounting space 4 allows it to connect with the battery mounting structure 3 facing that space, thus facilitating the mounting of the battery 30. Furthermore, when there are multiple battery mounting spaces 4, the battery mounting structures 3 corresponding to different battery mounting spaces 4 are positioned differently and do not interfere with each other. This allows each battery mounting structure 3 corresponding to a battery mounting space 4 to have sufficient space for flexible arrangement, making it easier and more reliable to mount the battery 30.

[0136] In some embodiments, please refer to Figure 4 and Figure 5 The extension 2 includes a mounting edge 21 protruding into the battery mounting space 4, and the battery mounting structure 3 is located on the mounting edge 21.

[0137] Therefore, by setting the mounting edge 21, the difficulty of setting the battery mounting structure 3 is reduced, and the battery mounting structure 3 can be easily located on the side of the extension 2 facing the battery mounting space 4. Moreover, the mounting edge 21 can provide a certain direct or indirect support for the battery 30, thereby enhancing the mounting stability of the battery 30.

[0138] In some embodiments, please refer to Figure 4 The battery mounting structure 3 consists of multiple structures, with at least two arranged at intervals along the second direction Y.

[0139] This allows for full utilization of the space in the second direction Y of the extension 2, enabling the arrangement of a greater number of battery mounting structures 3, thereby enhancing the mounting stability of the battery 30, or increasing the number of batteries 30 mounted in the battery mounting space 4.

[0140] In some embodiments, please refer to Figure 4 The extension 2 is plate-shaped, and the thickness direction of the extension 2 is the first direction X, and the length direction of the extension 2 is the second direction Y.

[0141] Therefore, by setting the extension 2 as a plate and defining the first direction X and the second direction Y as described above, the battery mounting space 4 can be located on one or both sides in the thickness direction of the extension 2. This allows full use of the length structure characteristics of the extension 2 to define the battery mounting space 4, resulting in a smaller space occupied by the extension 2 and a larger defined battery mounting space 4.

[0142] Furthermore, when the number of extensions 2 is arranged such that the battery mounting bracket 10 defines multiple battery mounting spaces 4 in the thickness direction of the extension 2, the distance between two adjacent battery mounting spaces 4 in the thickness direction of the extension 2 is equal to the thickness of the extension 2, which makes the gap between two adjacent battery mounting spaces 4 smaller. This allows more battery mounting spaces 4 to be provided in the thickness direction of the extension 2, which is beneficial to further improve space utilization.

[0143] For example, when the thickness direction of the extension 2 is the same as the length direction of the vehicle 1000, and the length direction of the extension 2 is the same as the width direction of the vehicle 1000, the mounting space of the battery 30 can be expanded in both the length and width directions of the vehicle 1000, thereby increasing the driving range of the vehicle 1000 on a single battery swap.

[0144] In some embodiments, please refer to Figure 4 The height of the extension 2 tends to decrease in the second direction Y along the direction away from the main body 1.

[0145] It is worth noting that "showing a decreasing trend" can mean either a gradual decrease or a step-like decrease.

[0146] Therefore, by setting the height of the extension 2 to decrease in the second direction Y along the direction away from the main body 1, the height of the area of ​​the extension 2 away from the main body 1 is smaller.

[0147] In other words, the height of the end of the extension 2 connected to the main body 1 is relatively large, while the height of the end of the extension 2 away from the main body 1 is relatively small. This can enhance the connection strength between the extension 2 and the main body 1, improve the reliability of the extension 2 for mounting the battery 30, and reduce the weight of the extension 2, thereby reducing the load on the vehicle 1000.

[0148] In some embodiments, please refer to Figure 4 The battery mounting structure 3 is located at the lower edge of the extension 2 in the height direction Z. The lower edge of the extension 2 extends along a horizontal line, and the upper edge of the extension 2 tends to decrease in a direction away from the main body 1. Here, the two ends in the height direction Z of the extension 2 are defined as the upper and lower ends. When the height direction Z of the extension 2 is consistent with the height direction of the vehicle 1000, the two ends in the height direction Z of the extension 2 are also the upper and lower ends in the direction of gravity.

[0149] Therefore, by setting the battery mounting structure 3 at the lower edge of the extension 2 in the height direction Z, and with the lower edge of the extension 2 extending along the horizontal line, it is beneficial that all battery mounting structures 3 are at the same height and have a low height, which is beneficial for the loading and connection of the battery mounting structure 3 and the battery 30, making it easier to reduce the difficulty of mounting the battery 30, and also helps to save space for battery swapping operations, and improves the size and energy density of the battery.

[0150] For example, when a tool is extended upwards to the position of the battery mounting structure 3 to connect the battery mounting structure 3 to the battery 30, the tool is raised below the extension 2, thus reducing the tool's lifting height. Furthermore, the tool does not need to extend between the battery 30 and the extension 2, eliminating the need to increase the gap between them to accommodate the tool's insertion, reducing wasted space. This allows for further increases in the size of the battery 30, thereby improving its size energy density. This also simplifies the mounting difficulty of the battery 30.

[0151] For example, combined Figure 4 and Figure 5The lower edge of the extension 2 is provided with a mounting edge 21. When the battery mounting structure 3 is located at the lower edge of the extension 2, it can be mounted on the mounting edge 21. In this case, the lower edge of the extension 2 can be set to extend horizontally, while the upper edge of the extension 2 tends to decrease in a direction away from the main body 1. It is worth noting that "increasing in a direction" can mean gradually decreasing or decreasing in a step-like manner. This is beneficial because all battery mounting structures 3 are located at the same horizontal height, thereby facilitating the mounting operation of the battery 30.

[0152] Meanwhile, the upper edge of the extension 2 tends to decrease in the direction away from the main body 1, so that the height of the end of the extension 2 connected to the main body 1 is relatively large, while the height of the end of the extension 2 away from the main body 1 is relatively small. This can enhance the connection strength between the extension 2 and the main body 1, improve the reliability of the extension 2 for mounting the battery 30, and reduce the weight of the extension 2, thereby reducing the load on the vehicle 1000.

[0153] In some embodiments, please refer to Figure 5 The extension 2 is provided with reinforcing ribs 22 and / or weight-reducing structures 23.

[0154] Therefore, by setting the reinforcing rib 22, the structural strength of the extension 2 is enhanced, the stress deformation problem of the extension 2 is improved, and the mounting reliability of the extension 2 for the battery 30 is improved.

[0155] The reinforcing rib 22 may include, but is not limited to, strip-shaped reinforcing protrusions or locally thickened extensions 2, and the structural form of the reinforcing rib 22 is not limited, for example, it may be straight, curved, or intersecting, etc. No limitation is made here.

[0156] For example, when a battery 30 is mounted on the battery mounting structure 3 of the extension 2, the position of the battery mounting structure 3 of the extension 2 is subjected to concentrated force, which is prone to deformation and damage. Therefore, at least some of the reinforcing ribs 22 can be arranged corresponding to the battery mounting structure 3, thereby improving the structural strength of the extension 2 and improving the mounting reliability of the battery 30 of the extension 2 while reducing the number of reinforcing ribs 22.

[0157] For example, when the extension 2 is provided with multiple battery mounting structures 3, at least some of the reinforcing ribs 22 are arranged between adjacent battery mounting structures 3. When a battery 30 is mounted on the battery mounting structure 3 on the extension 2, the position of the battery mounting structure 3 of the extension 2 is subject to stress concentration, making it prone to deformation and damage. When at least some of the reinforcing ribs 22 are arranged between adjacent battery mounting structures 3, the structural strength of the extension 2 between adjacent battery mounting structures 3 can be enhanced, the problem of stress concentration and fracture between adjacent battery mounting structures 3 can be improved, and the mounting reliability of the extension 2 for the battery 30 can be improved.

[0158] By setting up the weight reduction structure 23, the weight of the extension 2 can be reduced, thus facilitating the lightweight design of the extension 2. The "weight reduction structure 23" may include, but is not limited to, weight reduction holes, weight reduction grooves, or thinning treatments, etc., and is not limited here.

[0159] In addition, when the extension 2 is provided with both reinforcing ribs 22 and weight-reducing structures 23, the weight of the extension 2 increases because the reinforcing ribs 22 are provided. The weight can be reduced by providing weight-reducing structures 23. In this way, the reliability and lightweight of the extension 2 can be balanced.

[0160] In some embodiments, please refer to Figure 4 and Figure 6 The battery mounting bracket 10 includes a plurality of battery mounting spaces 4 spaced apart along a first direction X.

[0161] Therefore, by setting the battery mounting rack 10 to include multiple battery mounting spaces 4 arranged at intervals along the first direction X, it is advantageous to flexibly set the number of battery mounting spaces 4 by increasing or decreasing the number of extensions 2, so that the battery mounting rack 10 has high expandability, and the battery 30 can be installed in the battery mounting space 4 through the battery mounting structure 3, so that the battery mounting rack 10 can have the function of mounting multiple batteries 30 in the first direction X, that is, realize the multi-pack mounting function, thereby increasing the driving range of the vehicle 1000 per battery swap and reducing the number of battery swaps per unit mileage.

[0162] For example, when the battery mounting bracket 10 is installed on the vehicle frame 60, the first direction X can be set as the vehicle length direction. Since the battery mounting bracket 10 defines multiple battery mounting spaces 4 arranged along the first direction X, the battery mounting bracket 10 has the function of mounting multiple batteries 30 along the vehicle length direction. In this way, the number of batteries 30 that can be arranged on the vehicle 1000 can be increased, which is conducive to improving the driving range of the vehicle 1000 on a single battery swap and reducing the number of battery swaps per unit mileage.

[0163] For example, please refer to again Figure 4 The battery mounting bracket 10 includes four extensions 2 spaced apart along a first direction X, and the four extensions 2 define three battery mounting spaces 4. Each battery mounting space 4 can hold at least one battery 30. When the battery 30 is mounted on the battery mounting structure 3, at least a portion of the battery 30 is located within the battery mounting space 4. At this time, two adjacent extensions 2 can act as the outer walls of the battery mounting space 4 to provide a certain degree of protection for the battery 30, thereby reducing damage to the battery 30 and improving the reliability of the battery 30 in providing power to the vehicle 1000.

[0164] Of course, the number of battery mounting spaces 4 described above is only for illustrative purposes. For example, the battery mounting spaces 4 provided in the first direction X of the battery mounting bracket 10 can also be two, three, five, or more, etc., which can be set according to the specific needs of the vehicle 1000.

[0165] Furthermore, the number of extensions 2 is not necessarily one more than the number of battery mounting spaces 4. For example, three battery mounting spaces 4 can be defined by five or six extensions 2. However, it is understood that when the number of extensions 2 is not necessarily one more than the number of battery mounting spaces 4, the number of extensions 2 used can be reduced, thereby reducing the cost and weight of the battery mounting bracket 10.

[0166] In some embodiments, please refer to Figure 4 At least one extension 2 is a common extension 2a, and two battery mounting spaces 4 arranged at intervals along the first direction X are separated by the common extension 2a.

[0167] It is worth noting that "at least one extension 2 is a shared extension 2a" means that among a plurality of extensions 2 spaced apart along the first direction X, at least one of the remaining extensions 2, excluding the two extensions on both sides, is a shared extension 2a. For example, when four extensions 2 are spaced apart along the first direction X, at least one of the two middle extensions 2 is a shared extension 2a. The two battery mounting spaces 4 adjacent to each other along the first direction X are separated by the shared extension 2a.

[0168] Therefore, when the number of battery mounting spaces 4 spaced apart along the first direction X is fixed, the number of extensions 2 spaced apart along the first direction X can be reduced, thereby reducing costs and the load on the vehicle 1000. For example, in the minimum case, the number of extensions 2 spaced apart along the first direction X can be one more than the number of battery mounting spaces 4, that is, only one extension 2 is provided between two adjacent battery mounting spaces 4 along the first direction X, thereby reducing costs and the load on the vehicle 1000.

[0169] However, this application is not limited to this. For example, two extensions 2 can be provided between two adjacent battery mounting spaces 4 along the first direction X. In this way, each extension 2 can only correspond to one side of the battery mounting space 4 to arrange the battery mounting structure 3, thereby reducing the load-bearing force of each extension 2 on the battery 30 and improving the mounting reliability of the battery 30.

[0170] In some embodiments, battery mounting structures 3 are respectively arranged on both sides of the battery mounting space 4 facing both sides of the common extension 2a.

[0171] Therefore, by arranging battery mounting structures 3 on both sides of the battery mounting space 4 facing both sides of the common extension 2a, the difficulty of setting up the battery mounting structures 3 is reduced.

[0172] In some embodiments, the orthographic projections of the battery mounting structures 3 on both sides of the common extension 2a onto a projection plane perpendicular to the first direction X are misaligned. For example, the distance from any battery mounting structure 3 on one side of the common extension 2a to the main body 1 in the second direction Y is different from the distance from any battery mounting structure 3 on the other side of the common extension 2a to the main body 1 in the second direction Y.

[0173] Therefore, by setting the orthographic projection misalignment of the battery mounting structures 3 on both sides of the common extension 2a onto the projection plane perpendicular to the first direction X, the stress distribution of the common extension 2a is made more reasonable. When the batteries 30 in the battery mounting spaces 4 on both sides of the common extension 2a are connected to the battery mounting structures 3 on both sides of the common extension 2a, stress concentration can be reduced, which can lead to deformation, breakage and other problems in the common extension 2a, thereby improving the service life of the common extension 2a and enhancing the mounting reliability of the batteries 30.

[0174] In some embodiments, please refer again Figure 4 The battery mounting space 4 is provided with battery mounting structures 3 on both sides of the extension 2 in the first direction X.

[0175] Therefore, the two sides of the battery 30 mounted in the battery mounting space 4 can be connected to the battery mounting structures 3 of the extensions 2 on both sides of the battery mounting space 4 in the first direction X, so that the extensions 2 on both sides of the battery mounting space 4 in the first direction X can both play the role of supporting the battery 30 in the battery mounting space 4. The battery mounting structures 3 on both sides can distribute the force to reduce stress concentration and thus reduce problems such as deformation and breakage of the extensions 2, improve the service life of the extensions 2, and thus improve the mounting reliability of the battery 30.

[0176] In some embodiments, the battery mounting structures 3 on both sides of the battery mounting space 4 in the first direction X are misaligned in their orthographic projections onto a projection plane perpendicular to the first direction X. For example, the distance from any battery mounting structure 3 on one side of the battery mounting space 4 to the main body 1 in the second direction Y is different from the distance from any battery mounting structure 3 on the other side of the battery mounting space 4 to the main body 1 in the second direction Y.

[0177] Therefore, by setting the battery mounting structures 3 on both sides of the battery mounting space 4 to be misaligned in the orthographic projection on the projection plane perpendicular to the first direction X, it is further beneficial to distribute the force on both sides of the battery mounting structures 3, and further improve the problem of deformation and breakage of the extension 2 caused by stress concentration.

[0178] Furthermore, when the common extension 2a has battery mounting structures 3 on both sides of the first direction X, and the orthographic projections of the battery mounting structures 3 on both sides of the common extension 2a on the first direction X are misaligned on the projection plane perpendicular to the first direction X, and the orthographic projections of the battery mounting structures 3 on both sides of the battery mounting space 4 on the first direction X are misaligned on the projection plane perpendicular to the first direction X, multiple extensions 2 can be constructed with the same structure, which is beneficial for simplifying the structure, facilitating processing, reducing costs, and improving assembly efficiency.

[0179] In some embodiments, please refer again Figure 4 Multiple extensions 2 of multiple battery mounting spaces 4, which are spaced apart along the first direction X, are connected to the same main body 1.

[0180] Therefore, multiple extensions 2 spaced apart along the first direction X can be connected using the same main body 1, thereby reducing the assembly difficulty of the multiple extensions 2. For example, when the battery mounting bracket 10 is mounted on the vehicle frame 60, the main body 1 can be fixed to the vehicle frame 60, thereby enabling the multiple extensions 2 to reach the use position, thus reducing the difficulty of using the battery mounting bracket 10.

[0181] In some embodiments, please refer again Figure 4 The main body 1 is connected to a plurality of extensions 2 that are spaced apart along the first direction X on both sides in the second direction Y.

[0182] Therefore, by setting multiple extensions 2 that are spaced apart along the first direction X on both sides of the main body 1 in the second direction Y, both sides of the main body 1 in the second direction Y have the function of accommodating and protecting the battery 30. When the extensions 2 have battery mounting structures 3, both sides of the main body 1 in the second direction Y also have the ability to mount the battery 30. This makes full use of the size of the battery mounting bracket 10 in the second direction Y to increase the number of batteries 30 that the battery mounting bracket 10 can mount, thereby making full use of the space of the battery mounting bracket 10 in the second direction Y and improving the driving range of the vehicle 1000 on a single battery swap.

[0183] For example, when the battery mounting bracket 10 is installed on the vehicle frame 60, the main body 1 can be fixed to the vehicle beam 20 of the vehicle frame 60. The first direction X is the length direction of the vehicle beam 20, and the second direction Y is the width direction of the vehicle beam 20, so that the battery 30 can be distributed on both sides of the vehicle beam 20, thus giving the battery mounting bracket 10 a double-sided mounting space.

[0184] In some embodiments, such as Figure 3 and Figure 4As shown, the extensions 2 on both sides of the main body 1 are arranged in a one-to-one correspondence along the second direction Y, and the two extensions 2 are arranged in the same length extension direction, and the orthographic projections of the two extensions 2 along the length extension direction of the extensions 2 coincide.

[0185] Therefore, the battery mounting spaces 4 defined by the extensions 2 on both sides of the main body 1 in the second direction Y are of the same size and corresponding in position. Thus, when a large-sized and relatively regularly shaped battery 30 is installed on the battery mounting bracket 10, the two sides of the battery 30 can respectively cooperate with the two battery mounting spaces 4 corresponding to the two sides of the main body 1 in the second direction Y. This allows the two battery mounting spaces 4 on both sides of the main body 1 to be used together to install a large-sized battery 30, which helps to improve the energy density of the installed battery 30. Furthermore, when the extension 2 has a battery mounting structure 3, the two extensions 2 corresponding to the positions in the second direction Y can respectively bear the load on both sides of the large-sized battery 30, thereby improving the force balance and mounting stability of the battery 30.

[0186] In some embodiments, please refer to Figure 3 and Figure 4 The main body 1 includes a beam clearance groove 13, which has an opening extending along a first direction X. For example, the first direction X can be set to be consistent with the length direction of the beam 20.

[0187] Therefore, by providing a beam clearance groove 13 with an opening extending along the first direction X, a portion of the beam 20 can extend into the beam clearance groove 13, thereby allowing the beam clearance groove 13 to avoid interference between the battery mounting bracket 10 and the beam 20, improving the tightness of the fit between the battery mounting bracket 10 and the beam 20, and facilitating the use of space near the beam 20 to install the battery 30, thereby increasing the size and size energy density of the battery 30.

[0188] In some embodiments, please refer to Figure 4 and Figure 5 The main body 1 includes a first main body wall 11 and two second main body walls 12. The two second main body walls 12 are arranged along the first direction X and are respectively connected to the two ends of the first main body wall 11 along the second direction Y, so as to form a top-open vehicle beam clearance groove 13 between the two second main body walls 12 and the first main body wall 11.

[0189] Therefore, by setting two second main body walls 12 to be arranged along the first direction X (i.e., the length direction of the second main body wall 12 is consistent with the first direction X) and the two second main body walls 12 are respectively connected to the two ends of the first main body wall 11 along the second direction Y, so as to define the extension direction of the beam avoidance groove 13 along the first direction X, and by forming a beam avoidance groove 13 with an open top between the two second main body walls 12 and the first main body wall 11, the design and molding difficulty of the beam avoidance groove 13 is reduced.

[0190] Furthermore, since the top of the beam clearance groove 13 is open, the main body 1 can be pushed upwards from bottom to top, allowing the beam 20 to enter the beam clearance groove 13. This helps reduce the difficulty of assembling the battery mounting bracket 10 onto the vehicle frame 60. For the already assembled vehicle frame 60, the battery mounting bracket 10 can be installed subsequently, making the battery mounting bracket 10 suitable for various vehicle models. This application is not limited to this. For example, in other embodiments of this application, the beam clearance groove 13 can be configured to have an open bottom. In this case, the battery mounting bracket 10 can be assembled with the vehicle frame 60 simultaneously during the assembly process.

[0191] In some embodiments, please refer to Figure 4 and Figure 5 The extension 2 is connected to the second main body wall 12. For example, the extension 2 is connected to the side of the second main body wall 12 away from the first main body wall 11 in the second direction Y.

[0192] Therefore, by connecting the extension 2 to the second main body wall 12, the length of the extension 2 in the second direction Y can be increased while avoiding interference between the extension 2 and the vehicle beam 20, thereby facilitating the expansion of the battery mounting space 4 in the second direction Y. Furthermore, it facilitates the connection between the extension 2 and the main body 1.

[0193] Specifically, the connection method between the extension 2 and the second main body wall 12 is not limited, for example, it can be welded or integrally formed. Also, the connection method between the first main body wall 11 and the second main body wall 12 is not limited, for example, it can be welded or integrally formed.

[0194] In some embodiments, please refer to Figure 4 and Figure 5 At least one of the main body 1 and the extension 2 has a beam connection structure 14.

[0195] For example, the beam connection structure 14 can be provided on the main body 1, or the beam connection structure 14 can be provided on the extension 2, or the beam connection structure 14 can be provided on both the main body 1 and the extension 2. The specific structure of the beam connection structure 14 is not limited, and it can be a threaded hole, a connecting hole, or a snap-fit ​​structure, etc.

[0196] In this way, since the main body 1 cooperates with the vehicle beam 20 through the vehicle beam clearance groove 13, both the main body 1 and the extension 2 can have a part close to the vehicle beam 20. Thus, by setting the vehicle beam connection structure 14 to connect to the vehicle beam 20, it is easy to install the battery mounting bracket 10 to the vehicle frame 60.

[0197] In some embodiments, the side of the extension 2 facing the battery mounting space 4 is provided with at least one of a heat insulation structure, a heat dissipation structure, and a buffer structure.

[0198] In the above technical solution, by setting up heat-insulating structural components, the battery 30 is provided with heat insulation, thereby improving the heat transfer between two adjacent batteries 30. These heat-insulating structural components include, but are not limited to, heat-insulating cotton, heat-insulating film, or other heat-insulating structures, and are not limited thereto.

[0199] By incorporating heat dissipation components, the battery 30 can be cooled, thereby mitigating overheating and reducing the risk of thermal runaway. These heat dissipation components include, but are not limited to, radiators, coolers, fans, or other cooling structures; specific details are not provided here.

[0200] By incorporating a buffer structure, the battery 30 is cushioned, thereby improving the rigid contact between the battery 30 and the buffer portion, protecting the battery 30, and extending its service life. The buffer structure may include, but is not limited to, sponges, rubber components, elastic components, or other cushioning structures; no specific limitations are specified herein.

[0201] Secondly, please refer to Figure 3 and Figure 4 This application provides a vehicle frame assembly 100, which includes a vehicle frame 60 and a battery mounting bracket 10 as described in any of the above embodiments. The battery mounting bracket 10 is used to mount a battery 30 to the vehicle frame 60. The height direction Z of the extension 2 is the height direction of the vehicle frame 60, which is the height direction of the vehicle 1000.

[0202] The battery mounting bracket 10 is then installed onto the vehicle frame 60, and the battery 30 is connected to the battery mounting structure 3 to assemble the battery 30 onto the battery mounting bracket 10, so that the battery mounting bracket 10 can be used to install the battery 30 onto the vehicle frame 60.

[0203] Therefore, when the battery 30 is installed onto the frame 60 via the battery mounting bracket 10, the battery mounting space 4 of the battery 30 in the height direction of the frame 60 can be expanded, so as to mount the battery 30 with a larger height on the battery mounting bracket 10, thereby increasing the driving range of the vehicle 1000 times per battery swap.

[0204] In some embodiments, please refer to Figure 3and Figure 4 The battery mounting bracket 10 is located at the bottom of the frame 60 (i.e., at the bottom of the vehicle 1000). The frame 60 includes a beam 20, and at least one side of the beam 20 in the width direction has an extension 2. At least a portion of the extension 2 is higher than the bottom surface of the beam 20 in the height direction of the frame 60. In the embodiments of this application, the length direction of the frame 60, the length direction of the vehicle 1000, and the length direction of the beam 20 are all consistent, as are the width direction of the frame 60, the width direction of the vehicle 1000, and the width direction of the beam 20.

[0205] As a result, the battery mounting space 4 is not completely lower than the vehicle beam 20, but is at least partially higher than the bottom surface of the vehicle beam 20 and located on at least one side of the width direction of the vehicle beam 20. This allows full use of the bottom space of the frame 60 to arrange the extension 2 and the battery mounting space 4, which is conducive to mounting the larger battery 30 on the battery mounting bracket 10, thereby increasing the driving range of the vehicle 1000 times per battery swap.

[0206] Here, the vehicle beam 20 refers to the intermediate beam located at the bottom of the vehicle 1000 and extending along the length of the vehicle 1000, also known as the underbody beam. It is worth noting that the specific configuration of the vehicle beam 20 according to the embodiments of this application is not limited; for example, it can be combined with... Figure 3 and Figure 4 This may include the length direction of the vehicle 1000 (e.g. Figure 4 The two longitudinal beams 201 extending in the first direction (X) shown in the figure and along the width direction of the vehicle 1000 (e.g.) Figure 4 At least one crossbeam 202 extending in the second direction (Y) shown, and two longitudinal beams 201 are spaced apart along the width direction of the vehicle 1000, with the crossbeam 202 connecting the two longitudinal beams 201.

[0207] In some embodiments, please refer to Figure 3 and Figure 4 The vehicle beam 20 has multiple extensions 2 on both sides in the width direction, and multiple battery mounting spaces 4 arranged along the length direction of the vehicle beam 20 on both sides in the width direction. As a result, the battery mounting bracket 10 can make fuller use of the space on both sides of the width of the vehicle beam 20, thereby installing more batteries 30 and further improving the driving range of the vehicle 1000 per battery swap.

[0208] Furthermore, it is worth noting that the battery mounting bracket 10 can be connected to the vehicle beam 20, but is not limited to being connected to the vehicle beam 20; for example, it can also be connected to other components of the vehicle frame 60.

[0209] Thirdly, this application provides a vehicle 1000, which includes a battery 30 and a frame assembly 100 of any of the above embodiments, combined with Figure 3 and Figure 4 At least a portion of the battery 30 is housed in the battery mounting space 4.

[0210] Therefore, since the battery mounting space 4 extends along the height direction of the vehicle 1000, when at least a portion of the battery 30 is housed within the battery mounting space 4, the height of the battery 30 can be increased while ensuring the ground clearance of the battery 30, thereby increasing the energy density of the battery 30 and improving the driving range of the vehicle 1000 on a single battery swap.

[0211] In some embodiments, please refer to Figure 7 and Figure 8 The battery 30 includes an upper battery part 30a and a lower battery part 30b. The upper battery part 30a is accommodated in the battery mounting space 4. The battery 30 has a mounting structure 30c located between the upper battery part 30a and the lower battery part 30b. The mounting structure 30c is detachably connected to the battery mounting structure 3.

[0212] Therefore, when the battery 30 is mounted on the battery mounting bracket 10, the upper part 30a of the battery can extend into the battery mounting space 4. The extension 2 can provide some protection for the upper part 30a of the battery, reducing the risk of damage to the battery 30 and extending its service life. At the same time, the height of the extension 2 can be less than the height of the battery 30, which reduces the height of the extension 2 and thus reduces the weight and cost of the battery mounting bracket 10. Furthermore, positioning the mounting structure 30c between the upper part 30a and the lower part 30b of the battery makes it possible for the battery mounting structure 3 to be located at the lower edge of the extension 2, which, as mentioned above, facilitates the battery swapping operation. Additionally, the mounting structure 30c is detachably connected to the battery mounting structure 3, making it easier to replace the battery 30 and improving battery swapping efficiency.

[0213] The connection methods between the mounting structure 30c and the battery mounting structure 3 include, but are not limited to: bolt connection, snap-fit ​​connection, plug-in connection, or magnetic attraction.

[0214] In some embodiments, please refer to Figure 7 and Figure 8 In the spacing direction of the extension 2, that is, in the spacing direction of two adjacent extensions 2 (e.g., the first direction X), the size of the upper part 30a of the battery is smaller than the size of the lower part 30b of the battery, so as to form a stepped surface 30d between the upper part 30a and the lower part 30b of the battery. The stepped surface 30d stops at the bottom of the extension 2, so that at least a portion of the upper part 30a of the battery extends into the battery mounting space 4, and the lower part 30b of the battery is located outside the battery mounting space 4.

[0215] It is worth noting that the stop of the stepped surface 30d at the bottom of the extension 2 can be interpreted broadly, meaning that the step surface 30d and the extension 2 can achieve the stop function through direct contact or indirect contact. For example, a battery mounting structure 3 can be provided at the lower part of the extension 2, and a mounting structure 30c can be provided on the stepped surface 30d. When the mounting structure 30c and the battery mounting structure 3 are connected, the step surface 30d stops at the bottom of the extension 2.

[0216] Therefore, during the actual installation of the battery 30, when the upper part 30a of the battery is inserted into the battery mounting space 4 from bottom to top, the bottom of the extension 2 and the stop of the stepped surface 30d can be used to guide the battery 30 to be properly installed, thus preventing the battery 30 from extending excessively into the battery mounting space 4 and causing it to be squeezed and impacted against the bottom of the vehicle, thereby protecting the battery 30. Furthermore, setting the size of the lower part 30b of the battery to be larger than the size of the upper part 30a can further increase the size of the battery 30 to a certain extent, thereby further improving the size energy density of the battery 30.

[0217] In some embodiments, please refer to Figure 9 and Figure 10 The battery 30 includes two battery side portions 30e and a battery central portion 30f. In the width direction of the frame 60, the two battery side portions 30e are located on both sides of the battery central portion 30f. The top surface of the battery central portion 30f is lower than the top surface of the battery side portions 30e, so that a clearance groove 30g is formed between the two battery side portions 30e and the battery central portion 30f, which runs through the length direction of the frame 60 and has an open top to avoid the vehicle beam 20. At least one of the battery side portions 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3.

[0218] "At least one of the battery side portion 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3" includes: the battery side portion 30e is detachably connected to the battery mounting structure 3, or the battery central portion 30f is detachably connected to the battery mounting structure 3, or the battery side portion 30e and the battery central portion 30f are respectively detachably connected to the corresponding battery mounting structure 3.

[0219] The battery side 30e can be detachably connected to the battery mounting structure 3 via a mounting structure 30c on the battery side 30e. The position of the mounting structure 30c on the battery side 30e is not limited; for example, it can be located in the middle, upper or lower part of the battery side 30e.

[0220] The battery central portion 30f can be detachably connected to the battery mounting structure 3 via a mounting structure 30c on the battery central portion 30f. The position of the mounting structure 30c on the battery central portion 30f is not limited; for example, it can be located in the middle, upper or lower part of the battery central portion 30f.

[0221] The connection methods between the battery side 30e and / or the battery central part 30f and the battery mounting structure 30c include, but are not limited to: bolt connection, snap-fit, plug-in, or magnetic attraction.

[0222] Therefore, the battery 30 has a clever structure that avoids the vehicle beam 20 to fully utilize the space on both sides of the beam 20, thereby increasing the overall size of the battery 30 and improving its dimensional energy density. At the same time, at least one of the battery side portion 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3, which enhances the design flexibility of the battery 30. Specifically, when both battery side portions 30e are connected to the battery mounting structure 3, or when both battery side portions 30e and the battery central portion 30f are connected to the battery mounting structure 3, the installation stability of the battery 30 is improved.

[0223] For example Figure 10 As shown, at least a portion of the vehicle beam 20 is located within the clearance groove 30g and above the central portion 30f of the battery. The two battery sides 30e can be located on both sides of the width direction of the vehicle beam 20, thus making full use of the space on both sides of the width direction of the vehicle beam 20 to arrange a larger battery 30.

[0224] It is worth noting that the form of the battery 30 in this application embodiment is not limited to this. For example, it may include only one battery side portion 30e, or it may include both a battery central portion 30f and a battery side portion 30e.

[0225] In recent years, battery swapping has become an important way for pure electric commercial vehicles to replenish energy in applications such as logistics, ports, and mines, and the construction of battery swapping stations has been accelerating. To ensure the universality and interchangeability of battery swapping, and to fully utilize battery swapping stations, charging equipment, and other battery swapping facilities, thus reducing resource waste, further efforts are being made.

[0226] This application proposes several embodiments of chassis-based battery swapping to improve compatibility and interchangeability. However, the following embodiments are not limited to pure electric vehicles; other types of battery swapping vehicles can also be used as a reference.

[0227] In some embodiments, the operating voltage range of the battery swapping system is 400V to 750V.

[0228] In some embodiments, the flatness of the battery swapping contact surface of the battery swapping system is ≤4mm. Specifically, the contact interface between the battery swapping system and the battery mounting bracket should be a single plane with no convex structures, and the flatness should be less than 4mm.

[0229] In some embodiments, the dimensional tolerance of the battery swapping system is within ±10 mm.

[0230] In some embodiments, the vehicle weight M1 and battery capacity Q in the battery swapping system satisfy the following conditions: 0kg < M1 ≤ 1400kg, 100kWh ≤ Q ≤ 200kWh; or 1400kg < M1 ≤ 2800kg, 200kWh < Q ≤ 400kWh; or 2800kg < M1 ≤ 4200kg, 400kWh < Q ≤ 600kWh; or 4200kg < M1 ≤ 5600kg, 600kWh < Q ≤ 800kWh.

[0231] In some embodiments, such as Figures 11-12 As shown, the battery swapping system should be replaced on the vehicle within the corresponding envelope space. The battery dimensions in the battery swapping system are as follows: Figures 13-14 Logo.

[0232] In some embodiments, reference Figures 11-14 The front and rear ends of the battery swapping system are reserved with a safety gap L0 between them and the vehicle, and L0 ≥ 50 mm.

[0233] In some embodiments, reference Figures 11-14 The dimensions L of the battery swapping system along the length of the vehicle must satisfy: 700mm≤L≤900mm; or 1500mm≤L≤1700mm; or 2300mm≤L≤2500mm; or 3100mm≤L≤3300mm.

[0234] In some embodiments, reference Figures 11-14 The dimension W of the battery swapping system along the vehicle width direction must satisfy: 2300mm≤W≤2550mm.

[0235] In some embodiments, reference Figures 11-14 The total height H of the battery swapping system must satisfy: H≤680mm.

[0236] In some embodiments, reference Figures 11-14 The length L1 of the upper boss (such as the upper part 30a of the battery) of the battery swapping system shall satisfy: 600≤L1≤700.

[0237] In some embodiments, reference Figures 11-14 The width W1 of the upper two side protrusions of the battery swapping system (such as the upper part 30a of the battery side 30e) must satisfy: W1≤805mm.

[0238] In some embodiments, reference Figures 11-14 The width W2 of the upper middle boss of the battery swapping system (such as the upper part 30a of the battery center 30f) must satisfy: W2≤640mm.

[0239] In some embodiments, reference Figures 11-14 The height dimension H1 of the upper two side bosses of the battery swapping system (such as the upper part 30a of the battery side 30e) must satisfy: H1≤300mm.

[0240] In some embodiments, reference Figures 11-14 The height dimension H2 of the upper middle boss of the battery swapping system (such as the upper part 30a of the battery center 30f) must satisfy: H2≤150mm.

[0241] Currently, the main application scenarios for heavy-duty electric trucks include long-haul logistics, short- and medium-distance operations (such as urban construction waste transportation), and closed operation scenarios (such as ports). The power demand can be roughly divided into three types: 400-600kWh, 300-400kWh, and 150-200kWh. Based on this power series, it can be seen that the standard package solution can be flexibly configured to suit different scenarios. For example, the power capacity of a standard battery swapping system is around 150-200kWh. Three standard battery swapping systems (referred to as three-pack), two standard battery swapping systems (referred to as two-pack), or a single standard battery swapping system (referred to as single pack) can be used to meet the power demand.

[0242] Currently, the main models of heavy-duty electric trucks include: 6x4 tractor trucks, 4x2 tractor trucks, 8x4 dump trucks, 6x4 dump trucks, 4x2 cargo trucks, and 6x4 cargo trucks. Among them, the 6x4 tractor trucks and 8x4 dump trucks have relatively short wheelbases, while other models are compatible. Specifically, the 6x4 tractor truck: the ideal wheelbase for a traditional gasoline truck is 3300mm, but currently, it cannot accommodate a large battery capacity. For rear-mounted battery swapping models, the wheelbase has been extended to 3800mm, but this space still cannot accommodate the target battery capacity. Currently, it is suggested that the wheelbase be extended to 4200mm to allocate battery space based on this wheelbase. The 8x4 dump truck: some are used in urban areas, and some in mining areas. The 8x4 dump truck in mining areas has a longer wheelbase to ensure transport capacity; the increased wheelbase allows for the placement of the target battery capacity. In urban 8x4 dump trucks, the wheelbase of traditional fuel vehicles is 2500-2600mm, which is not enough space to accommodate the target battery capacity. For models with rear-mounted battery swapping, the wheelbase is extended to 3200-3300mm, and the chassis battery swapping can be based on this extended wheelbase to allocate battery space.

[0243] The space constraints at the front end of the battery include: leaf springs and their supports, which are generally around 1600-1800mm in the industry under heavy load conditions (900mm on one side). The space constraints at the rear end of the battery include: mudguards, approximately 700mm from the wheel center. A 50mm safety clearance is reserved at both the front and rear ends of the battery. Therefore, the approximate envelope size of the battery swapping system for a 6x4 tractor is: 4200-900-700-100 = 2500mm (three packs), and for an 8x4 dump truck, it is approximately: 3300-900-700-100 = 1600mm (two packs). Based on the envelope space of these two battery swapping systems, and considering a 20-30mm gap between battery swapping systems, the approximate length envelope size for each battery swapping system is 700-820mm.

[0244] When designing a battery swapping system, the width envelope should not exceed the vehicle width required by regulations, such as the width of a heavy-duty electric truck, which is 2550mm.

[0245] When designing the height envelope of the battery swapping system, it is considered that the upper part of the battery swapping system maintains a 20mm gap with the upper wing surface of the vehicle beam, and the bottom surface of the battery swapping system maintains a ground clearance of 300mm or 400mm or more. The ground clearance of the upper wing surface of the vehicle beam is generally 1000-1100mm. Therefore, the height envelope of the battery swapping system is approximately 580-780mm.

[0246] Furthermore, in order to improve the compatibility and interchangeability of battery swapping, this application also proposes some embodiments of the battery mounting bracket 10.

[0247] In some embodiments, reference Figure 15 In the longitudinal direction of the vehicle (such as the first direction X), the length of the battery mounting space 4 is Y1, and satisfies: 620mm≤Y1≤720mm.

[0248] In some embodiments, reference Figure 15 In the width direction of the vehicle (such as the second direction Y), the width of the battery mounting space 4 is N1, and satisfies: 690mm≤N1≤815mm.

[0249] In some embodiments, reference Figure 15 In the width direction of the vehicle (such as the second direction Y), the minimum width between the two second main body walls 12 is N2, and satisfies: 660mm≤N2≤680mm.

[0250] In some embodiments, reference Figure 16In the width direction of the vehicle (e.g., the second direction Y), the total width of the battery mounting bracket 10 is P, and in the length direction of the vehicle (e.g., the first direction X), the total length of the battery mounting bracket 10 is R, and satisfies the following: 2300mm≤P≤2550mm, 700mm≤R≤900mm (e.g., having only one battery mounting space 4), or 1500mm≤R≤1700mm (e.g., having two battery mounting spaces 4), or 2300mm≤R≤2500mm (e.g., having three battery mounting spaces 4), or 3100mm≤R≤3300mm (e.g., having four battery mounting spaces 4).

[0251] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. 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 mounting rack characterized by, The battery mounting bracket includes a plurality of extensions arranged at intervals, and a battery mounting space is formed between two adjacent extensions, extending through the height direction of the extension. The battery mounting bracket is provided with a battery mounting structure for mounting the battery in the battery mounting space.

2. The battery mount of claim 1, wherein, The two extensions defining the battery mounting space are spaced apart in a first direction and connected by a main body, the main body being located on one side of the extensions in a second direction, the first direction and the second direction intersecting in a plane perpendicular to the height direction of the extensions.

3. The battery mount of claim 2, wherein, The two extensions defining the battery mounting space are also connected by a reinforcing part, which and the main body are located on both sides of the extension in the second direction.

4. The battery mount of claim 3, wherein, At least one of the main body, the extension, and the reinforcing part is provided with the battery mounting structure.

5. The battery mounting bracket according to claim 2, characterized in that, The battery mounting structure is located on the side of the extension facing the battery mounting space.

6. The battery mounting bracket according to claim 5, characterized in that, The battery mounting structure is a plurality of structures, with at least two spaced apart along the second direction.

7. The battery mounting bracket according to claim 2, characterized in that, The extension is plate-shaped, and the thickness direction of the extension is the first direction, while the length direction of the extension is the second direction.

8. The battery mounting bracket according to claim 7, characterized in that, The height of the extension tends to decrease in the second direction along the direction away from the main body.

9. The battery mounting bracket according to claim 8, characterized in that, The battery mounting structure is located at the lower edge of the extension in the height direction. The lower edge of the extension extends along a horizontal line, and the upper edge of the extension decreases in a direction away from the main body.

10. The battery mounting bracket according to claim 7, characterized in that, The extension is provided with reinforcing ribs and / or weight-reducing structures.

11. The battery mounting bracket according to claim 2, characterized in that, The battery mounting bracket includes a plurality of battery mounting spaces spaced apart along the first direction.

12. The battery mounting bracket according to claim 11, characterized in that, At least one of the extensions is a common extension, and the two battery mounting spaces spaced apart along the first direction are separated by the common extension.

13. The battery mounting bracket according to claim 12, characterized in that, The battery mounting structures are respectively arranged on both sides of the battery mounting space facing both sides of the common extension.

14. The battery mounting bracket according to claim 13, characterized in that, The battery mounting structures on both sides of the common extension are misaligned in their orthographic projections onto a projection plane perpendicular to the first direction.

15. The battery mounting bracket according to claim 2, characterized in that, The battery mounting space is provided with battery mounting structures on the extensions on both sides of the first direction.

16. The battery mounting bracket according to claim 15, characterized in that, The battery mounting structures on both sides of the battery mounting space in the first direction are misaligned in their orthographic projections onto a projection plane perpendicular to the first direction.

17. The battery mounting bracket according to claim 2, characterized in that, The multiple extensions that define multiple battery mounting spaces spaced apart along the first direction are connected to the same main body.

18. The battery mounting bracket according to claim 2, characterized in that, The main body is connected to a plurality of extensions spaced apart along the first direction on both sides in the second direction.

19. The battery mounting bracket according to claim 18, characterized in that, The extension portions on both sides of the main body are arranged one-to-one in the second direction, and the two extension portions are arranged in the same length extension direction, and their orthographic projections along the length extension direction coincide.

20. The battery mounting bracket according to any one of claims 2-19, characterized in that, The main body includes a beam clearance groove, which has an opening extending through the first direction.

21. The battery mounting bracket according to claim 20, characterized in that, The main body includes a first main wall and two second main walls. The two second main walls are arranged along the first direction and are respectively connected to the two ends of the first main wall along the second direction, so as to form the top-open vehicle beam clearance groove between the two second main walls and the first main wall.

22. The battery mounting bracket according to claim 21, characterized in that, The extension is connected to the second main body wall and is located on the side of the second main body wall away from the first main body wall in the second direction.

23. The battery mounting bracket according to claim 20, characterized in that, At least one of the main body and the extension has a beam connection structure.

24. The battery mounting bracket according to claim 2, characterized in that, The battery mounting bracket is used in a vehicle, the first direction being the length direction of the vehicle, and the width direction of the vehicle being the second direction; In the longitudinal direction of the vehicle, the total length of the battery mounting bracket is R, and the length of the battery mounting space is Y1; Y1 satisfies: 620mm≤Y1≤720mm; R satisfies: 700mm≤R≤900mm, or 1500mm≤R≤1700mm, or 2300mm≤R≤2500mm, or 3100mm≤R≤3300mm; In the width direction of the vehicle, the total width of the battery mounting bracket is P, and the width of the battery mounting space is N1; N1 satisfies: 690mm≤N1≤815mm; P satisfies: 2300mm≤P≤2550mm.

25. The battery mounting bracket according to claim 21, characterized in that, In the second direction, the minimum width between the two second main body walls is N2, which satisfies: 660mm≤N2≤680mm.

26. A vehicle frame assembly, characterized in that, The device includes a vehicle frame and a battery mounting bracket as described in any one of claims 1-25, the battery mounting bracket being used to mount a battery to the vehicle frame, the extension having a height direction that is the height direction of the vehicle frame.

27. The frame assembly according to claim 26, characterized in that, The battery mounting bracket is installed at the bottom of the vehicle frame, which includes a beam. At least one side of the beam in the width direction has the extension, and at least a portion of the extension is higher than the bottom surface of the beam.

28. The frame assembly according to claim 27, characterized in that, The vehicle beam has multiple extensions on both sides in the width direction, and multiple battery mounting spaces are arranged along the length direction of the vehicle beam on both sides in the width direction.

29. A vehicle, characterized in that, Includes a battery and a frame assembly as described in any one of claims 26-28, wherein at least a portion of the battery is housed in the battery mounting space.

30. The vehicle according to claim 29, characterized in that, The battery includes an upper part and a lower part. The upper part of the battery is accommodated in the battery mounting space. The battery has a mounting structure located between the upper part and the lower part of the battery. The mounting structure is detachably connected to the battery mounting structure.

31. The vehicle according to claim 30, characterized in that, In the interval direction of the extension, the size of the upper part of the battery is smaller than the size of the lower part of the battery, so as to form a stepped surface between the upper part and the lower part of the battery, the stepped surface stopping at the bottom of the extension.

32. The vehicle according to any one of claims 29-31, characterized in that, The battery includes two battery sides and a battery center. In the width direction of the vehicle frame, the two battery sides are located on both sides of the battery center. The top surface of the battery center is lower than the top surface of the battery sides to form a clearance groove that extends through the length direction of the vehicle frame and is open at the top to avoid the vehicle beam between the two battery sides and the battery center. At least one of the battery sides and the battery center is detachably connected to the battery mounting structure.

33. The vehicle according to claim 29, characterized in that, The flatness of the contact interface between the battery and the battery mounting bracket is less than or equal to 4 mm.

34. The vehicle according to claim 29, characterized in that, The dimension L of the battery along the length direction of the vehicle satisfies: 700mm≤L≤900mm, or 1500mm≤L≤1700mm, or 2300mm≤L≤2500mm, or 3100mm≤L≤3300mm; the dimension W of the battery along the width direction of the vehicle satisfies: 2300mm≤W≤2550mm; the total height H of the battery satisfies: H≤680mm, or 580mm≤H≤780mm.

35. The vehicle according to claim 32, characterized in that, The length L1 of the upper part of the battery satisfies: 600mm≤L1≤700mm; the width W1 of the upper part of the battery on the side satisfies: W1≤805mm; the width W2 of the upper part of the battery in the center satisfies: W2≤640mm; the height H1 of the upper part of the battery on the side satisfies: H1≤300mm; and the height H2 of the upper part of the battery in the center satisfies: H2≤150mm.

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