Battery mounting rack, vehicle frame assembly and vehicle

Abstract

A battery mounting rack (10) is provided, which includes a first rack (2A), the first rack (2A) comprising a plurality of extensions (2) spaced apart along a first direction (X), and a plurality of battery mounting spaces (4) sequentially arranged along the first direction (X), the battery mounting spaces (4) being defined between two adjacent extensions (2) along the first direction (X), and the battery mounting rack (10) is provided with a battery mounting structure (3) for mounting batteries (30) in the battery mounting spaces (4). A vehicle frame assembly and a vehicle are further disclosed.

Description

Technical Field

[0001] [Cross - reference to Related Applications] This application is filed based on a Chinese patent application with an application number of 202310799492.4 and an application date of June 30, 2023, and claims the priority of the above - mentioned Chinese patent application. All the contents of the above - mentioned Chinese patent application are incorporated herein by reference into this application.

[0002] This application relates to the field of batteries, specifically to battery mounting racks, vehicle frame assemblies, and vehicles.

Background Art

[0003] Energy conservation and reduction of pollutant emissions are the keys to the sustainable development of the automotive industry. Electric vehicles have become an important component of the sustainable development of the automotive industry due to their energy - saving and environmental protection advantages. However, for electric vehicles, battery technology is an important factor related to their development. However, when a vehicle exchanges a battery pack at a battery swapping station, the power of the battery pack generally is not completely used up, and there exists a problem of energy waste.

Summary of the Invention

[0004] In view of the above problems, this application provides a battery mounting rack, a vehicle frame assembly, and a vehicle. The battery mounting rack can mount a plurality of batteries, and by selecting the batteries that need to be exchanged according to the actual situation, the problem of energy waste is improved.

[0005] According to a first aspect, this application provides a battery mounting rack including a first rack. The first rack includes a plurality of extending portions arranged at intervals along a first direction and a plurality of battery mounting spaces installed in sequence along the first direction. The battery mounting spaces are defined between two adjacent extending portions along the first direction, and a battery mounting structure for mounting a battery into the battery mounting space is installed on the battery mounting rack.

[0006] In the invention of this application, when batteries are mounted on a vehicle using such a battery mounting rack, the battery mounting rack includes multiple battery mounting spaces, and a battery mounting structure is provided on the battery mounting rack, so that each battery mounting space can be used to mount a battery, and a battery can be mounted individually in each battery mounting space. In this way, the battery mounting rack can have the function of mounting multiple batteries, and when replacing batteries, only the batteries whose energy has been used up can be replaced, and the batteries whose energy has not been used up can be retained, thereby improving the energy utilization rate of the batteries and improving the problem of energy waste. Furthermore, when the battery mounting rack is used on a vehicle, the first direction may be set in the longitudinal direction of the vehicle, so that the battery mounting rack has the function of mounting multiple batteries along the longitudinal direction of the vehicle, which is advantageous in increasing the number of batteries that can be placed on the vehicle, and is advantageous in increasing the size of the battery mounting space in the length and width direction of the vehicle, thereby increasing the size energy density of the batteries. Furthermore, the battery mounting space is defined between two adjacent extensions along the first direction, and the extensions can be used to protect the battery, improving problems such as the batteries in the two adjacent battery mounting spaces along the first direction colliding with each other and heat transfer.

[0007] In some embodiments, the lengths of at least two battery mounting spaces on the first rack coincide in the first direction.

[0008] In the above proposed technology, since the lengths of at least two battery mounting spaces on the first rack are the same in the first direction, it is made easier to install batteries of the same specifications in at least two battery mounting spaces whose lengths are the same in the first direction, thereby allowing batteries to be installed in either one of the battery mounting spaces, further improving installation efficiency and flexibility.

[0009] In some embodiments, the lengths of at least two battery mounting spaces on the first rack in the first direction do not coincide.

[0010] In the above proposed technology, since the lengths of at least two battery mounting spaces on the first rack do not match in the first direction, when installing batteries of different specifications in at least two battery mounting spaces whose lengths do not match in the first direction, batteries of different specifications can be installed in battery mounting spaces of corresponding sizes, thereby allowing the installation of battery mounting spaces to be adapted to the specifications of the corresponding batteries, thereby reducing wasted mounting space, and allowing at least two types of batteries of different specifications to be installed in this battery mounting rack.

[0011] In some embodiments, the battery mounting rack includes two first racks spaced apart along a second direction, each first rack including a plurality of battery mounting spaces arranged sequentially along the first direction, the second direction intersects the first direction.

[0012] In the above proposed technology, the battery mounting rack includes two first racks, and each first rack is installed to include multiple battery mounting spaces that are sequentially arranged along the first direction. This allows each first rack to have the function of mounting multiple batteries in the first direction, and the two first racks are installed spaced apart along the second direction. This allows for increased capacity to mount batteries in the battery mounting rack by making full use of the space in the second direction, which is advantageous in improving the driving range of the vehicle with a single battery change.

[0013] In some embodiments, the extensions in the two first racks are installed in a one-to-one correspondence along the second direction, and the longitudinal extension directions of the two corresponding extensions are the same, and the orthographic projections along the longitudinal extension direction overlap.

[0014] In the above-described technical proposal, the size and position of the battery mounting spaces corresponding to the second direction defined on the two first racks are the same, and the battery mounting rack can accommodate large and relatively regular sized batteries. The two battery mounting spaces can then be fitted together with the two battery mounting spaces, each positioned in the second direction. Thus, the two battery mounting spaces, each positioned in the second direction, can be used to mount one large battery, which is advantageous for improving the energy density of the mounted battery. Furthermore, if the extensions have a battery mounting structure, the two extensions, whose positions correspond along the second direction, can support the two sides of this large battery, thereby improving the battery's force-bearing balance and mounting stability.

[0015] In some embodiments, the first direction is perpendicular to the second direction, the longitudinal extension direction of the extension is the second direction, and the battery mounting spaces on the two first racks are arranged symmetrically.

[0016] In the above proposed technology, both ends of a battery that is symmetrical in shape and relatively large in size can be mounted in two symmetrically arranged battery mounting spaces, thereby meeting the demand for mounting large batteries. Furthermore, the batteries mounted in each of the symmetrical battery mounting spaces, or the local distribution of the batteries, are more uniform, and the biasing force on the battery mounting rack may be relatively uniform, which is advantageous in improving the structural stability of the battery mounting rack.

[0017] In some embodiments, the battery mounting rack further includes a second rack, the second rack being connected to two first racks spaced apart along a second direction, the second rack including a body beam relief groove, the body beam relief groove having an opening that penetrates along the first direction.

[0018] In the above proposed technology, by installing a second rack, it is made easier to connect the two first racks A into an integrated structure using the second rack. Thus, for example, by fixing the second rack to the vehicle frame, the battery mounting rack can be fixed, allowing each of the first racks A to reach its usable position and reducing the difficulty of assembling the battery mounting rack. At the same time, the vehicle beam relief groove of the second rack has an opening that penetrates along the first direction X, so that a part of the vehicle beam can extend into the vehicle beam relief groove, thereby allowing the vehicle beam relief groove to clear the vehicle beam, avoiding interference between the battery mounting rack and the vehicle beam, improving the compactness of the fitting between the battery mounting rack and the vehicle beam, which is advantageous for installing the battery by utilizing the space near the vehicle beam, and is advantageous for increasing the size and size energy density of the battery.

[0019] In some embodiments, the second rack includes a first body wall, which is multiple and spaced apart along a first direction, thereby forming a battery escape route between two adjacent first body walls, and the battery escape route and the battery mounting space are positioned opposite each other along a second direction.

[0020] In the above proposed technology, by installing a battery escape port, when installing a relatively large battery in the battery mounting space, the battery can escape through the battery escape port, thereby avoiding interference between the battery and the second rack, making it easier to install a relatively large battery, and is advantageous in improving the energy density of the installed battery.

[0021] In some embodiments, the second rack further includes a second body wall, the second body wall extending along a first direction, and there are two second body walls, spaced apart on both sides of each first body wall along the second direction, thereby defining a body beam relief groove between the first body wall and the two second body walls, and the first rack is provided on one side of the second body wall away from the first body wall in the second direction, and each extension is connected to the second body wall.

[0022] In the above proposed technology, by installing a second main body wall, multiple first main body walls and the second main body wall can be connected as an integrated structure, thereby reducing the difficulty of installing the second rack and being advantageous in defining the extension direction of the vehicle body beam relief groove, which extends along the first direction, where the first rack is provided on one side of the second main body wall away from the first main body wall in the second direction, and each extension portion is connected to one side of the second main body wall away from the first main body wall in the second direction, thereby avoiding interference between the extension portion and the vehicle body beam, and making it easier to expand the battery mounting space in the second direction and improve the battery size and size energy density.

[0023] In some embodiments, the height of the extension tends to decrease along the direction away from the second main body wall.

[0024] In the above proposed technology, by setting the height of the extension portion to tend to decrease in the direction away from the second main body wall, the height of the region of the extension portion away from the second main body wall is made relatively small. In other words, the height of the end where the extension portion and the second main body wall are connected is relatively large, and the height of the end of the extension portion away from the second main body wall is relatively small. This strengthens the connection strength between the extension portion and the second main body wall, improves the reliability of mounting the extension portion on the battery, and reduces the weight of the extension portion, thereby reducing the load on the vehicle.

[0025] In some embodiments, the lower edge of the extension extends along a horizontal line, the battery mounting structure is located at the lower edge of the extension, and the upper edge of the extension tends to slope downward in a direction away from the second main body wall.

[0026] The above proposed technology has the advantage of making the height of the battery mounting structure relatively low, which reduces the difficulty of battery installation, and also has the advantage of all battery mounting structures being located at the same horizontal height, thereby simplifying the battery installation operation.

[0027] In some embodiments, at least one of the first rack and the second rack is provided with a vehicle body beam connection structure.

[0028] In the above technical solution, the vehicle body beam connection structure may be installed on the first rack, or the vehicle body beam connection structure may be installed on the second rack, or further, the vehicle body beam connection structure may be installed on both the first rack and the second rack. In this way, the second rack fits with the vehicle body beam through the vehicle body beam escape groove, so that both the second rack and the first rack can have a portion close to the vehicle body beam. In this way, by installing the vehicle body beam connection structure to connect to the vehicle body beam, the attachment of the battery mounting rack to the vehicle frame can be easily realized.

[0029] In some embodiments, at least one of a heat insulation structure member, a heat dissipation structure member, and a buffer structure member is provided on one side of the extension portion facing the battery mounting space.

[0030] In the above technical solution, by installing the heat insulation structure member, the heat transfer effect between two adjacent batteries can be improved. By installing the heat dissipation structure member, it is easier to play a role in heat dissipation for the battery, thereby improving the overheating of the battery. By installing the buffer structure member, it is easier to play a role in buffering for the battery, thereby improving the rigid contact between the battery and the buffer portion, and thereby playing a role in protecting the battery, which is advantageous for extending the service life of the battery.

[0031] In some embodiments, the battery mounting structure is provided on the extension portion.

[0032] In the above technical solution, by installing the battery mounting structure on the extension portion, the battery mounting structure only occupies the space in the first direction X, thereby avoiding the occupation of the space in other directions by the battery mounting structure, which is advantageous for improving the size of the battery in other directions.

[0033] In some embodiments, the battery mounting structure is arranged on one side of the extended portion facing the battery mounting space.

[0034] In the above proposed technology, by arranging the battery mounting structure on one side of the extension facing the battery mounting space, the battery mounting structure corresponds to the battery mounting space it faces and is used to mount batteries in the battery mounting space it faces. This clarifies the correspondence between the battery mounting structure and the battery mounting space, allowing the batteries to be extended into the battery mounting space and connected to the battery mounting structure facing that space, thereby facilitating battery mounting. Furthermore, if there are multiple battery mounting spaces, no interference occurs between battery mounting structures corresponding to different battery mounting spaces. As a result, each battery mounting structure corresponding to a battery mounting space can be flexibly installed with sufficient space, allowing the battery to be mounted more easily and reliably.

[0035] In some embodiments, at least one of the multiple extensions located in the middle is a common extension, the common extension has battery mounting spaces on both sides in a first direction, and battery mounting structures are arranged on both sides facing the battery mounting spaces on both sides of the common extension.

[0036] In the above proposed technology, if the number of battery mounting spaces arranged at intervals along the first direction is fixed, the number of extensions arranged at intervals along the first direction can be reduced, which is advantageous in reducing costs and the load on the vehicle.

[0037] In some embodiments, the orthographic projections of the battery mounting structures on both sides of the common extension in the first direction are misaligned in the projection plane perpendicular to the first direction.

[0038] In the above proposed technology, by setting the orthographic projections of the battery mounting structures on both sides of the common extension to be offset in the projection plane perpendicular to the first direction, it is advantageous that the force distribution of the common extension becomes more rational. 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, problems such as deformation and fracture of the common extension due to stress concentration can be reduced, improving the service life of the common extension and thereby improving the reliability of battery mounting.

[0039] In some embodiments, the extension includes a mounting edge that protrudes into the battery mounting space, and the battery mounting structure is located at the mounting edge.

[0040] The above proposed technology is advantageous in reducing the difficulty of installing the mounting structure by installing a mounting edge, easily enabling the mounting structure to be located on one side facing the battery mounting space in the extended portion, and allowing the mounting edge to perform a certain direct or indirect support function on the battery, thereby improving the mounting stability of the battery.

[0041] In some embodiments, the battery mounting space is provided with battery mounting structures on both extensions in the first direction.

[0042] In the above proposed technology, both extensions on both sides in the first direction of the battery mounting space can support the battery within the battery mounting space, and the battery mounting structures on both sides can distribute the load, thereby reducing problems such as deformation and fracture of the extensions due to stress concentration, improving the service life of the extensions, and thereby improving the reliability of battery mounting.

[0043] In some embodiments, the orthographic projections of the battery mounting structures on both sides in the first direction of the battery mounting space are misaligned in a projection plane perpendicular to the first direction.

[0044] In the above proposed technology, by arranging the battery mounting structures on both sides of the battery mounting space so that their orthographic projections in the projection plane perpendicular to the first direction are offset, the force bearings of the battery mounting structures on both sides are distributed, which is even more advantageous in further improving problems such as deformation and fracture of the extended portion due to stress concentration. Furthermore, if the orthographic projections of the battery mounting structures on both sides of the common extended portion in the projection plane perpendicular to the first direction are offset, and the orthographic projections of the battery mounting structures on both sides of the battery mounting space in the projection plane perpendicular to the first direction are offset, then multiple extended portions may all be configured with the same structure, thereby simplifying the structure, making it easier to process, reducing costs, and improving assembly efficiency.

[0045] In some embodiments, multiple battery mounting structures are provided on one side of the extension facing the battery mounting space, and at least two of the battery mounting structures are installed at intervals along the longitudinal direction of the extension.

[0046] The above proposed technology is advantageous in that it fully utilizes the space in the longitudinal direction of the extension and arranges a larger number of battery mounting structures, thereby improving the stability of battery mounting or increasing the number of batteries mounted within the battery mounting space.

[0047] In some embodiments, the stretched portion is plate-shaped, with the thickness direction being the first direction, the longitudinal direction being the second direction, and the width direction being the height direction.

[0048] In the above proposed technology, by installing the extension in a plate shape and defining the first and second directions as described above, the battery mounting space can be positioned on one or both sides in the thickness direction of the extension. This allows the battery mounting space to be defined by making full use of the length structural characteristics of the extension, making the space occupied by the extension relatively small and the defined battery mounting space relatively large. Furthermore, when the battery mounting rack defines multiple battery mounting spaces in the thickness direction of the extension, the distance between two adjacent battery mounting spaces in the thickness direction of the extension is the thickness of the extension. This makes the gap between two adjacent battery mounting spaces relatively small, allowing more battery mounting spaces to be installed in the thickness direction of the extension, which is advantageous in further improving the space utilization rate.

[0049] In some embodiments, reinforcing ribs and / or weight-reducing structures are installed in the extended portion.

[0050] The above technical proposal is advantageous in that, by installing reinforcing ribs, the structural strength of the extended section is reinforced, improving the problem of deformation of the extended section when subjected to force, and thereby improving the reliability of mounting the extended section on the battery. By installing a weight-reducing structure, it is advantageous in reducing the weight of the extended section, and thus advantageous in realizing a lightweight design for the extended section.

[0051] In some embodiments, the first rack further includes a reinforcing section connecting at least two extensions.

[0052] The above proposed technology is advantageous in strengthening the overall structural strength of the battery mounting rack, reducing deformation caused by force on the extended portion, and improving the reliability of battery mounting.

[0053] According to a second aspect, the present application provides a vehicle frame assembly including a vehicle frame and a battery mounting rack as in any one embodiment described above, wherein the battery mounting rack is used to mount a battery to the vehicle frame, and the first direction is the longitudinal direction of the frame.

[0054] In the above proposed technology, when batteries are mounted in a vehicle using such a battery mounting rack, the battery mounting rack includes multiple battery mounting spaces that are sequentially installed along the longitudinal direction of the vehicle frame. As a result, the battery mounting rack can make full use of the space along the longitudinal direction of the vehicle frame to mount a larger number of batteries. Furthermore, when replacing batteries, only batteries that have run out of power need to be replaced, while batteries that have not run out of power need to be left in place. This improves the energy utilization rate of the batteries and alleviates the problem of energy waste.

[0055] In some embodiments, the battery mounting rack is located at the bottom of the vehicle frame, the vehicle frame includes a body beam, and the first rack is located on at least one side in the width direction of the body beam, with at least a portion of the first rack being higher than the bottom surface of the body beam of the vehicle frame in the height direction of the vehicle frame.

[0056] In the above proposed technology, the battery mounting space is not entirely lower than the vehicle body beam, but at least partially higher than the bottom surface of the vehicle body beam and located on at least one side in the width direction of the vehicle body beam. This allows for the placement of the extension and battery mounting space by making full use of the space at the bottom of the vehicle frame, which is advantageous for mounting relatively large batteries on the battery mounting rack, thereby improving the driving range of the vehicle with a single battery change.

[0057] In some embodiments, the first racks are symmetrically provided on both sides in the width direction of the vehicle body beam.

[0058] In the above proposed technology, a first rack is installed on each side in the width direction of the vehicle body beam, and the first racks on both sides in the width direction of the vehicle body beam are installed symmetrically. This simplifies the structure of the battery mounting rack, makes it easier to manufacture, and allows for full utilization of the space under the vehicle, enabling the installation of a larger number or larger size of batteries.

[0059] According to a third aspect, the present application provides a vehicle comprising a battery and a vehicle frame assembly of any one of the above embodiments, wherein at least a portion of the battery is housed in a battery mounting space.

[0060] In the above proposed technology, at least a portion of the battery is housed within the battery mounting space, thereby allowing the battery to be mounted on the vehicle. This increases the battery's ground clearance, thereby increasing the vehicle's ground clearance, and also makes it easier to fully utilize the battery mounting space, thereby reducing the mounting space occupied by the battery. Furthermore, it is advantageous for increasing the number of batteries that can be mounted, and allows for the selection of batteries to be replaced as needed, reducing energy waste.

[0061] In some embodiments, the battery is mounted in a removable and replaceable location within one of the battery compartments.

[0062] In the above proposed technology, the battery may be arbitrarily installed in one of the battery mounting spaces. In this way, the versatility of the battery mounting space can be improved, thereby reducing the difficulty of battery installation and improving the flexibility of the choice of battery replacement and installation location.

[0063] In some embodiments, the vehicle includes a plurality of batteries arranged along a first direction, each of which is mounted in a one-to-one correspondence with a plurality of battery mounting spaces.

[0064] In the above proposed technology, multiple batteries are mounted in a one-to-one correspondence with multiple battery mounting spaces, thereby enabling the mounting of multiple batteries arranged along a first direction by a first rack, i.e., multi-pack mounting, thereby making full use of the space in the longitudinal direction of the vehicle to increase the number of batteries, and thereby improving the driving range of the vehicle with a single battery change.

[0065] In some embodiments, the battery includes a battery upper and a battery lower, the battery upper being housed in a battery mounting space, and the battery having a mounting structure provided between the battery upper and battery lower, the mounting structure being detachably connected to the battery mounting structure.

[0066] In the above proposed technology, when the battery is mounted on the battery mounting rack, the upper part of the battery can extend into the battery mounting space, and the extension can provide a certain level of protection to 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 does not have to be less than the height of the battery, allowing the height of the extension to be reduced, thereby reducing the weight and cost of the battery mounting rack. Furthermore, the mounting structure can be positioned between the upper and lower parts of the battery, and the battery mounting structure can be positioned at the lower edge of the extension, which is advantageous for battery replacement operations.

[0067] In some embodiments, in the first direction, the size of the upper part of the battery is smaller than the size of the lower part of the battery, thereby forming a stepped surface between the upper and lower parts of the battery, the bottom of the battery mounting space is open, and the stepped surface is locked to the bottom of the extension.

[0068] In the above proposed technology, when actually installing the battery, as the upper part of the battery extends from bottom to top into the battery mounting space, the locking mechanism between the bottom of the extension and the stepped surface can be used to signal that the assembly of the battery is complete. This prevents the battery from extending excessively into the battery mounting space and pressing against the underside of the vehicle, thereby protecting the battery. Furthermore, by setting the size of the lower part of the battery to be larger than the size of the upper part, the size of the battery can be increased to some extent, thereby further improving the size energy density of the battery.

[0069] In some embodiments, the battery comprises two battery sides and a battery center, where, in the width direction of the vehicle frame, the two battery sides are located on either side of the battery center, the top surface of the battery center is lower than the top surface of the battery sides, thereby forming a position avoidance groove between the two battery sides and the battery center that penetrates along the longitudinal direction of the vehicle frame and has an open top to allow clearance for the vehicle beam, and at least one of the battery sides and the battery center is detachably connected to a battery mounting structure.

[0070] The above proposed technology features an ingenious battery structure that allows for ample use of the space on both sides of the vehicle body beam's width by accommodating the beam. This enables an increase in the overall size of the battery, thereby improving its size energy density. Simultaneously, at least one of the battery's side or central portion can be detachably connected to the battery mounting structure, which is advantageous in improving the battery's design flexibility.

[0071] The above description is merely an outline of the proposed technology of this application. To better understand the technical means of this application, it may be implemented according to the contents of the specification. Furthermore, in order to make the above and other objectives, features, and advantages of this application clearer and easier to understand, the following will describe specific embodiments of this application in particular. [Brief explanation of the drawing]

[0072] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those skilled in the art. The drawings are used solely to illustrate the purpose of the preferred embodiments and are not intended to be considered limitations to this application. Note that in all drawings, the same drawing number indicates the same component. In the drawings, [Figure 1] These are schematic diagrams of the structure of several embodiments of the vehicle in this application. [Figure 2] This is a schematic diagram of the disassembled structure of a battery according to some embodiments of this application. [Figure 3] This is a schematic diagram of the assembly of a vehicle frame assembly and battery in some embodiments of this application. [Figure 4]These are schematic diagrams of the structure of vehicle frame assemblies in several embodiments of this application. [Figure 5] This is a magnified view of area A in Figure 4. [Figure 6] This is a schematic diagram of a vehicle frame assembly, battery, and other viewing angles of one embodiment of the present application. [Figure 7] This is a schematic diagram of a battery according to one embodiment of the present application. [Figure 8] This is a magnified view of area B in Figure 3. [Figure 9] This is a schematic diagram of a battery according to another embodiment of this application. [Figure 10] Figure 3 is a partially enlarged view. [Figure 11] These are schematic diagrams of vehicles according to some embodiments of this application. [Figure 12] Figure 11 is a bottom view of the vehicle. [Figure 13] This is a cross-sectional view of the EE area in Figure 12. [Figure 14] This is a cross-sectional view of the FF area in Figure 12. [Figure 15] These are orthographic projections of battery mounting racks according to several embodiments of this application. [Figure 16] This is a cross-sectional view of a battery mounting rack according to some embodiments of this application. [Modes for carrying out the invention]

[0073] The following describes in detail embodiments of the technical proposal of this application, accompanied by drawings. These embodiments are merely examples intended to clarify the technical proposal of this application and should not be used to limit the scope of protection of this application.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art relating to the present application. The terms used herein are solely for the purpose of describing specific embodiments and are not intended to limit this application. The terms “including” and “having” and any variations thereof in the description of the specification, claims, and drawings of this application are intentionally intended to cover the non-exclusive “including.”

[0075] In the descriptions of the embodiments of this application, technical terms such as "first," "second," etc., are merely used to distinguish different subjects and should not be understood as implicitly indicating or suggesting the relative importance of the number, specific order, or hierarchical relationship of technical features. In the descriptions of the embodiments of this application, unless specifically defined otherwise, "plural" means two or more.

[0076] The “Examples” as used herein mean that certain features, structures, or characteristics described in conjunction with the Examples may be included in at least one Example of this Application. The appearance of this phrase at each location in the Specification does not necessarily refer to the same Example, nor do they represent mutually exclusive or alternative Examples. Those skilled in the art will understand, both explicitly and implicitly, that the Examples described herein can be combined with other Examples.

[0077] In the description of the embodiments of this application, the term "and / or" merely describes a related relationship between related objects, indicating that three relationships may exist. For example, X and / or Y can represent three cases: X alone, a combination of X and Y, and Y alone. In this specification, the letter " / " generally indicates that the preceding and succeeding related objects are in an "or" relationship.

[0078] 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 sets (including two sets), and "multiple sheets" refers to two or more sheets (including two sheets).

[0079] In the description of the embodiments of this application, the orientations or positional relationships indicated by technical terms such as "vertical direction," "horizontal direction," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are orientations or positional relationships shown based on the drawings. They are merely used to facilitate and simplify the description of the embodiments of this application, and do not indicate or imply that the mentioned devices or elements have a specific orientation or must be configured and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of this application.

[0080] In the description of the embodiments of this application, unless otherwise explicitly defined or limited, technical terms such as “attachment,” “connection,” “connection,” and “fixing” should be understood in a broad sense. For example, a fixed connection may be a detachable connection, a single unit, a direct connection, an indirect connection via an intermediate medium, or a communication between two elements or an interaction relationship between two elements. Those skilled in the art may understand the specific meaning of the above terms in the embodiments of this application depending on the specific circumstances.

[0081] Given the current market developments, the applications of power batteries are becoming increasingly broad. Power batteries are used not only in energy storage and power systems such as hydroelectric, thermal, wind, and solar power plants, but also in electric transportation tools such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. As the application fields of power batteries continue to expand, the market demand for them will also continue to increase.

[0082] In some vehicles using related technologies, the battery pack is typically mounted on the bottom of the vehicle using a tray; that is, the battery pack is placed on the tray, and then the tray is attached to the bottom of the vehicle. When the batteries need to be replaced, the tray is removed, the entire battery pack inside the tray is replaced, and then the tray is returned to the bottom of the vehicle. However, when replacing batteries, the energy in the battery pack inside the tray is generally not completely used up, and this battery replacement process results in a waste of energy.

[0083] To that end, the present application provides a battery mounting rack, which includes a first rack, the first rack including a plurality of extensions spaced apart along a first direction and a plurality of battery mounting spaces arranged sequentially along the first direction, the battery mounting spaces being defined between two adjacent extensions along the first direction, and the battery mounting rack is equipped with a battery mounting structure for mounting batteries in the battery mounting spaces.

[0084] When batteries are installed in a vehicle using such a battery mounting rack, the battery mounting rack includes multiple battery mounting spaces, and since the battery mounting structure is provided on the battery mounting rack, each battery mounting space can be used to mount a battery, and a battery can be mounted individually in each battery mounting space. In this way, the battery mounting rack can have the function of mounting multiple batteries, and when replacing batteries, only the batteries that have run out of power can be replaced, and the batteries that have not run out of power can be retained, thereby improving the energy utilization rate of the batteries and improving the problem of energy waste.

[0085] Furthermore, since the battery mounting space is defined between two adjacent extensions, the extensions can protect the batteries, improving the problem of batteries colliding in two battery mounting spaces installed adjacent to each other along the first direction, and improving the heat transfer problem between batteries in two battery mounting spaces installed adjacent to each other along the first direction, thereby improving the operational reliability of the batteries.

[0086] The batteries disclosed in the embodiments of this application can be used in power consumption devices that use the battery as a power source or in various energy storage systems that use the battery as an energy storage element. Power consumption devices may be used in, but are not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery cars, electric vehicles, ships, spacecraft, etc. Here, electric toys may include stationary or mobile electric toys, such as game consoles, electric vehicle toys, electric steamship toys and electric airplane toys, and spacecraft may include airplanes, rockets, space aircraft and spacecraft, etc.

[0087] In the following embodiments, for the sake of clarity, we will use the example that one embodiment of this application is a vehicle 1000.

[0088] Referring to Figure 1, which is a schematic diagram of the structure of a vehicle 1000 according to some embodiments of the present application, the vehicle 1000 may be a gasoline vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender vehicle. A battery 30 is installed inside the vehicle 1000, and the battery 30 may be installed at the bottom, head, or tail of the vehicle 1000. The battery 30 may be used to supply power to the vehicle 1000, for example, the battery 30 may be used as the operating power source for the vehicle 1000. The vehicle 1000 may further 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 operating power consumption requirements for starting the vehicle 1000, navigation, and driving.

[0089] In some embodiments of this application, the battery 30 can not only serve as an operating power source for the vehicle 1000, but can also serve as a driving power source for the vehicle 1000, providing driving power to the vehicle 1000 in place of or in place of fuel oil or natural gas.

[0090] Referring to Figure 2, which is an exploded view of a battery 30 according to some embodiments of the present application, the battery 30 comprises a housing 301 and a battery cell 302, the battery cell 302 being housed within the housing 301. Here, the housing 301 is used to provide a housing space for the battery cell 302, and the housing 301 may employ various structures. In some embodiments, referring to Figure 2, the housing 301 may include a first part 3011 and a second part 3012, the first part 3011 and the second part 3012 overlapping each other, and the first part 3011 and the second part 3012 jointly define a housing space for housing the battery cell 302. The second part 3012 may be a hollow structure with an opening at one end, and the first part 3011 may be a plate-like structure, and the first part 3011 is placed over the opening of the second part 3012 so that the first part 3011 and the second part 3012 together define a housing space, and both the first part 3011 and the second part 3012 may be hollow structures with an opening on one side, and the opening of the first part 3011 is placed over the opening of the second part 3012. Of course, the housing 301 formed by the first part 3011 and the second part 3012 may be of various shapes, such as a cylinder or a rectangular parallelepiped.

[0091] The battery 30 may include battery cells 302, and there may be multiple battery cells 302, and the connections between the multiple battery cells 302 may be in series, in parallel, or in series-parallel, where series-parallel connection means that the multiple battery cells 302 may be connected in series and in parallel. The multiple battery cells 302 may be directly connected in series, in parallel, or in series-parallel, and the entire assembly of the multiple battery cells 302 may be housed in a housing 301. Of course, the battery 30 may first be configured as a battery 30 module by connecting multiple battery cells 302 in series, in parallel, or in series-parallel, and then the multiple battery 30 modules may be connected in series, in parallel, or in series-parallel to form an integrated unit, which may be housed in a housing 301. The battery 30 may further include other structures, for example, the battery 30 may further include busbars for realizing electrical connections between the multiple battery cells 302.

[0092] 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, and the embodiments of this application are not limited thereto. The battery cell 302 may have a cylindrical, flattened, rectangular parallelepiped, or other shape, and the embodiments of this application are not limited thereto. Generally, the battery cell 302 can be classified into three types based on the packaging method: cylindrical battery cells, rectangular battery cells, and pouch battery cells, and the embodiments of this application are not limited thereto.

[0093] The battery cell 302 includes a housing, an electrode assembly, and an electrolyte, the housing being used to house the electrode assembly and the electrolyte. The electrode assembly consists of a positive electrode plate, a negative electrode plate, and a separator. The battery cell 302 operates primarily through the movement of metal ions between the positive and negative electrode plates. The material of the separator is not limited and may be, for example, polypropylene or polyethylene.

[0094] A positive electrode plate generally includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is directly or indirectly coated onto the positive electrode current collector. A positive electrode current collector without the positive electrode active material layer protrudes from a positive electrode current collector with the positive electrode active material layer, and a positive electrode current collector without the positive electrode active material layer is called a positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive electrode current collector may be aluminum, and the material of the positive electrode active material layer may be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc.

[0095] The negative electrode plate generally includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is directly or indirectly coated onto the negative electrode current collector. A negative electrode current collector without the negative electrode active material layer protrudes from a negative electrode current collector with the negative electrode active material layer, and a negative electrode current collector without the negative electrode active material layer is designated as a negative electrode tab. The material of the negative electrode current collector may be copper, and the material of the negative electrode active material layer may be carbon or silicon, etc.

[0096] To ensure that the electrode does not melt even when a large current is applied, the positive electrode tabs are multiple and stacked, and the negative electrode tabs are also multiple and stacked. The electrode assembly may have a wound structure or a stacked structure, and the embodiments of this application are not limited to these.

[0097] As shown in Figure 1, the embodiment of the present application provides a battery mounting rack 10 for mounting the battery 30 of the embodiment of the present application to the vehicle frame 60 of the vehicle 1000.

[0098] Referring to Figures 3 and 4, the battery mounting rack 10 includes a first rack 2A, which includes a plurality of extensions 2 spaced apart along a first direction X, and a plurality of battery mounting spaces 4 sequentially arranged along the first direction X, the battery mounting spaces 4 being defined between two adjacent extensions 2 along the first direction X, and the battery mounting rack 10 is equipped with a battery mounting structure 3 for mounting batteries 30 in the battery mounting spaces 4.

[0099] It should be explained that the battery mounting rack 10 of the embodiment of this application can be used for chassis-type battery swapping of a vehicle 1000, and chassis-type battery swapping (battery swapping under frame) refers to a method of replenishing the energy of a vehicle by flexibly replacing a replaceable battery system mounted under the chassis of the entire vehicle. Here, a swapable battery system refers to the power battery system (abbreviated as battery 30 in this application) that the vehicle 1000 replaces as a whole during the battery swapping process. Exemplarily, a swapable battery system generally includes a power storage battery, a battery management system, battery swapping electrical connection ports, battery swapping cooling connection ports, and battery swapping mechanical connection ports, and can be charged and discharged when not mounted in a vehicle. For terms and definitions of the embodiment of this application, refer to GB / T 19596 Electric Vehicle Terminology.

[0100] To make it clear, if the size of the battery 30 is relatively large, the same battery 30 can be installed in multiple battery mounting spaces 4 simultaneously. However, if the size of the battery 30 is relatively small, one battery 30 may be installed corresponding to only one battery mounting space 4, or multiple batteries 30 may be installed corresponding to one battery mounting space 4 simultaneously. In other words, the specific mounting method depends on the form of the battery 30 and is not limited here.

[0101] Here, "a battery mounting structure 3 for mounting a battery 30 in a battery mounting space 4 is installed on the battery mounting rack 10" means that a battery mounting structure 3 that can be connected to a battery 30 is installed on the battery mounting rack 10, and when the battery 30 is connected to the battery mounting structure 3, at least a portion of the battery 30 can be housed in the battery mounting space 4 and exhibit a mounted state. In the embodiment of this application, the battery mounting rack 10 includes a plurality of battery mounting spaces 4, and a battery mounting structure 3 is installed on each battery mounting space 4 corresponding to the battery mounting rack 10, so that each battery mounting space 4 is used to mount a battery 30, and the battery mounting structures 3 corresponding to different battery mounting spaces 4 can be independent of each other, so that the mounted battery 30 in each battery mounting space 4 can be individually removed and replaced. Here, "correspondence" in the setting in which the battery mounting structure 3 corresponds to a battery mounting space 4 refers to the correspondence in the relationship between the two, and includes, but is not limited to, a correspondence in position.

[0102] However, without limiting itself to this, for example, in some embodiments, when multiple battery mounting spaces 4 are used to mount the same battery 30, for example, when two battery mounting spaces 4 installed correspondingly along a second direction Y are used to mount the same battery 30, the battery mounting structures 3 corresponding to these two battery mounting spaces 4 may be installed independently of each other, or they may be installed in an interlocking manner, and when the same battery 30 is mounted, the interlocking battery mounting structures 3 are advantageous in improving battery replacement efficiency.

[0103] When batteries 30 are installed in a vehicle using such a battery mounting rack 10, the battery mounting rack 10 includes multiple battery mounting spaces 4, and since the battery mounting structure 3 is provided on the battery mounting rack 10, each battery mounting space 4 can be used to mount batteries 30, and so batteries 30 can be individually mounted in each battery mounting space 4. In this way, the battery mounting rack 10 has the function of mounting multiple batteries 30, and when replacing batteries, only the batteries 30 that have run out of power can be replaced, and the batteries 30 that have not run out of power can be retained, thereby improving the energy utilization rate of the batteries 30 and improving the problem of energy waste.

[0104] Furthermore, since the battery mounting space 4 is defined between two adjacent extensions 2, the extensions 2 can protect the battery 30, improving the problem of batteries 30 in two adjacent battery mounting spaces 4 installed along the first direction colliding with each other, and improving the heat transfer problem between batteries 30 in two adjacent battery mounting spaces 4 installed along the first direction, thereby improving the operational reliability of the battery 30. In other words, the portion of the battery 30 housed within the battery mounting space 4 is protected by the extensions 2 on both sides, improving the problem of batteries 30 in two adjacent battery mounting spaces 4 colliding with each other and improving heat transfer issues.

[0105] The battery mounting structure 3 may be installed on the extension 2, or it may not be installed on the extension 2, and is not limited thereto. The distribution position, number, and structural form of the battery mounting structure 4 can be flexibly designed to meet the battery mounting requirements. Here, the structure of the battery mounting structure 3 is not limited and may include, for example, mounting grooves, mounting holes, mounting protrusions, mounting pins, or mounting screws, but is not limited thereto.

[0106] For example, when the battery mounting rack 10 is used to mount batteries 30 to a vehicle 1000, the first direction X is set to the longitudinal direction of the vehicle 1000, and the battery mounting structure 3 is installed on the extension 2. In this case, 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, improving the size of the battery 30 in the width direction of the vehicle 1000, which is advantageous for improving the size energy density of the battery 30. Furthermore, by setting the first direction X to the longitudinal direction of the vehicle 1000, the longitudinal space of the vehicle 1000 is relatively large, which is also advantageous for increasing the size or number of battery mounting spaces 4 in the longitudinal direction of the vehicle 1000, which is advantageous for further improving the size energy density or number of batteries 30.

[0107] At the same time, the multiple extensions 2 are distributed at intervals along the first direction X, and the battery mounting space 4 is defined between two adjacent extensions 2 along the first direction X. By increasing or decreasing the number of extensions 2, the number of battery mounting spaces 4 can be adjusted, that is, by flexibly setting the number of extensions 2, the battery mounting rack 10 is given relatively high expandability, thereby enabling the battery mounting rack 10 to have the function of mounting multiple batteries 30 in the first direction X, that is, realizing a multi-pack mounting function, thereby improving the driving range of the vehicle 1000 with a single battery change.

[0108] The battery mounting rack 10 according to the embodiment of this application can have the function of mounting multiple batteries 30 in a first direction X, that is, it can realize a multi-pack mounting function. When the battery mounting rack 10 is used in a vehicle 1000, the first direction X may be set in the longitudinal direction of the vehicle 1000, thereby the battery mounting rack 10 can have the function of mounting multiple batteries 30 along the longitudinal direction of the vehicle 1000, which is advantageous in increasing the number of batteries 30 that can be placed in the vehicle 1000, and is also advantageous in increasing the size of the battery mounting space 4 in the length and width direction of the vehicle 1000, thereby increasing the size energy density of the batteries 30. Furthermore, the battery mounting space 4 is defined between two adjacent extensions 2 along the first direction X, and the extensions 2 can be used to protect the batteries 30, improving problems such as the batteries 30 in the two adjacent battery mounting spaces 4 along the first direction X colliding with each other and heat transfer.

[0109] In some embodiments, the lengths of at least two battery mounting spaces 4 on the first rack 2A coincide in the first direction X.

[0110] This facilitates the installation of batteries 30 of the same specifications in at least two battery mounting spaces 4 whose lengths coincide in the first direction X, thereby allowing the batteries 30 to be installed in either one of the battery mounting spaces 4, further improving installation efficiency and flexibility.

[0111] In some embodiments, the lengths of at least two battery mounting spaces 4 on the first rack 2A do not coincide in the first direction X.

[0112] This makes it easier to install batteries 30 of different specifications in at least two battery mounting spaces 4 whose lengths in the first direction X do not match, and allows batteries 30 of different specifications to be installed in battery mounting spaces 4 of corresponding sizes, thereby allowing the installation of the battery mounting spaces 4 to be adapted to the specifications of the corresponding batteries 30, thereby reducing wasted mounting space, and allowing at least two types of batteries 30 of different specifications to be installed in this battery mounting rack 10.

[0113] It should be explained that the lengths of all battery mounting spaces 4 installed on the first rack 2A along the first direction X may be the same, may not be the same, may some be the same, and may some not be the same. Flexible configuration is possible. When all battery mounting spaces 4 installed on the first rack 2A along the first direction X are installed such that the lengths of at least two battery mounting spaces 4 in the first direction X are the same, and at the same time, the lengths of at least two battery mounting spaces 4 in the first direction X are not the same, the need for flexible installation of batteries 30 of the same specifications, as well as the need for installation of batteries 30 of different specifications, can be met.

[0114] In some embodiments, as shown in Figures 3 and 4, the battery mounting rack 10 includes two first racks 2A spaced apart along a second direction Y, each first rack 2A including a plurality of battery mounting spaces 4 sequentially along a first direction X, where the second direction Y intersects with the first direction X, for example, at an obtuse, acute, or right angle.

[0115] As a result, the battery mounting rack 10 includes two first racks 2A, and each first rack 2A includes multiple battery mounting spaces 4 that are sequentially installed along the first direction X. This configuration allows each first rack 2A to have the function of mounting multiple batteries 30 in the first direction X, and the two first racks 2A are installed spaced apart along the second direction Y. This allows for increased capacity to utilize the space in the second direction Y to increase the number of batteries 30 that the battery mounting rack 10 can accommodate, which is advantageous in improving the driving range of the vehicle 1000 with a single battery change.

[0116] When the battery mounting rack 10 is attached to the vehicle frame 60, the first direction X may be set to the longitudinal direction of the vehicle frame 60 and the second direction Y may be set to the width direction of the vehicle frame 60. The two first racks 2A are installed spaced apart along the second direction Y, which corresponds to being spaced apart along the width direction of the vehicle frame 60. This space between the two first racks 2A makes it easy to avoid the vehicle body beam 20 of the vehicle frame 60, and allows the batteries 30 to be distributed on both sides of the width of the vehicle body beam 20. In other words, the battery mounting rack 10 has a configuration of mounting space on both sides, making full use of the space at the bottom of the vehicle 1000 and increasing the number of batteries 30 that can be mounted. In the embodiment of this application, the longitudinal direction of the vehicle frame 60, the longitudinal direction of the vehicle 1000, and the longitudinal direction of the vehicle body beam 20 all coincide, and the width direction of the vehicle frame 60, the width direction of the vehicle 1000, and the width direction of the vehicle body beam 20 all coincide.

[0117] In some embodiments, as shown in Figures 3 and 4, the extensions 2 in the two first racks 2A are installed in a one-to-one correspondence along the second direction Y, the longitudinal extension directions of the two corresponding extensions 2 are the same, and the orthographic projections of the two extensions 2 along the longitudinal extension direction of the extensions 2 overlap.

[0118] As a result, the battery mounting spaces 4 defined on the two first racks 2A, corresponding to each other along the second direction Y, are the same size and in corresponding positions. Therefore, when the battery mounting rack 10 installs a large and relatively regular-shaped battery 30, both sides of the battery 30 can fit into the two battery mounting spaces 4 that are installed correspondingly in the second direction Y. Thus, the two battery mounting spaces 4 installed correspondingly in the second direction Y can be used together to install one large battery 30, which is advantageous in improving the energy density of the installed battery 30. Furthermore, if the extension 2 has a battery mounting structure 3, the two extensions 2 that are installed correspondingly along the second direction Y can each support both sides of this large battery 30, thereby improving the force-bearing balance and mounting stability of the battery 30.

[0119] In some embodiments, as shown in Figures 3 and 4, the first direction X is perpendicular to the second direction Y, the longitudinal extension direction of the extension 2 is the second direction Y, and the battery mounting spaces 4 on the two first racks 2A are installed symmetrically.

[0120] As a result, the battery mounting rack 10 includes two first racks 2A, and each first rack 2A includes multiple battery mounting spaces 4 that are sequentially installed along the first direction X. This configuration allows each first rack 2A to have the function of mounting multiple batteries 30 in the first direction X, and the two first racks 2A are spaced apart along the second direction Y. This allows for increased capacity to utilize the space in the second direction Y to increase the number of batteries 30 that the battery mounting rack 10 can accommodate, which is advantageous in improving the driving range of the vehicle 1000 with a single battery change. Here, the battery mounting spaces 4 on the two first racks 2A are installed symmetrically, so that both ends of a battery 30 that is symmetrical in shape and relatively large in size can be mounted corresponding to the two symmetrically installed battery mounting spaces 4, thus meeting the demand for mounting large batteries 30. Furthermore, the batteries 30 or the local distribution of batteries 30 installed within the symmetrical battery mounting spaces 4 are more uniform, and the biasing force on the battery mounting rack 10 may be relatively uniform, which is advantageous in improving the structural stability of the battery mounting rack 10.

[0121] When the battery mounting rack 10 is attached to the vehicle frame 60, the first direction X may be set in the longitudinal direction of the vehicle frame 60 and the second direction Y may be set in the width direction of the vehicle frame 60. Since the two first racks 2A are installed spaced apart along the second direction Y, the space between the two first racks 2A can be used to easily accommodate the vehicle body beam 20, allowing the batteries 30 to be distributed on both sides of the vehicle body beam 20, and multiple batteries 30 arranged along the longitudinal direction of the vehicle frame 60 can be mounted on each side of the vehicle body beam 20, thereby giving the battery mounting rack 10 multiple mounting spaces on both sides.

[0122] In some embodiments, as shown in Figures 3 and 4, the battery mounting rack 10 further includes a second rack 1, which is connected to two first racks 2A spaced apart along a second direction Y, and the second rack 1 includes a body beam relief groove 13, which has an opening that penetrates along a first direction X. For example, the first direction X may be set to coincide with the longitudinal direction of the body beam 20.

[0123] This makes it easier to connect the two first racks 2A to an integrated structure by installing the second rack 1. Thus, for example, by fixing the second rack 1 to the vehicle frame 60, the battery mounting rack 10 can be fixed, allowing each first rack 2A to reach its usable position and reducing the difficulty of assembling the battery mounting rack 10. At the same time, the vehicle beam relief groove 13 of the second rack 1 has an opening that penetrates along the first direction X, so that a part of the vehicle beam 20 can extend into the vehicle beam relief groove 13, so that the vehicle beam relief groove 13 can escape the vehicle beam 20, avoiding interference between the battery mounting rack 10 and the vehicle beam 20, improving the compactness of the fitting between the battery mounting rack 10 and the vehicle beam 20, which is advantageous for installing the battery 30 by utilizing the space near the vehicle beam 20, and is advantageous for increasing the size and size energy density of the battery 30.

[0124] Furthermore, the vehicle body beam relief groove 13 can be installed so that its top is open, thereby allowing the main body 1 to be pushed up from below, and the vehicle body beam 20 to enter the vehicle body beam relief groove 13. This is advantageous in reducing the difficulty of assembling the battery mounting rack 10 to the vehicle frame 60, and the battery mounting rack 10 can be subsequently attached to the assembled vehicle frame 60, and the battery mounting rack 10 can be applied to multiple types of vehicle models. This application is not limited thereto. For example, in other embodiments of this application, the vehicle body beam relief groove 13 may be installed so that its bottom is open, and in this case, the assembly of the battery mounting rack 10 and the vehicle frame 60 may be performed simultaneously during the process of assembling the vehicle frame 60.

[0125] In some embodiments, as shown in Figure 4, the second rack 1 includes a first main body wall 11, which is multiple and spaced apart along a first direction X, thereby forming a battery escape opening 14 between two adjacent first main body walls 11, and the battery escape opening 14 and the battery mounting space 4 are positioned opposite each other along a second direction Y.

[0126] As a result, by providing the battery escape port 14, when a relatively large battery 30 is installed in the battery mounting space 4, the battery 30 can escape through the battery escape port 14, thereby avoiding interference between the battery 30 and the second rack 1. For example, when a large and regularly shaped battery 30 is installed in the battery mounting rack 10, the portion of the battery 30 corresponding to the first rack 2A can extend into the battery mounting space 4, and the portion of the battery 30 corresponding to the second rack 1 can extend into the battery escape port 14. In this way, it is advantageous to make it easier to install a relatively large battery 30 and to improve the energy density of the installed battery 30.

[0127] In some embodiments, as shown in Figures 4 and 5, the second rack 1 further includes a second body wall 12, the second body wall 12 extending along a first direction X, and there are two second body walls 12, spaced apart on both sides of each first body wall 11 along a second direction Y, thereby defining a body beam relief groove 13 between the first body wall 11 and the two second body walls 12, and the first rack 2A is provided on one side of the second body wall 12 away from the first body wall 11 in the second direction Y, and each extension 2 is connected to the second body wall 12.

[0128] As a result, by installing the second main body wall 12, multiple first main body walls 11 and the second main body wall 12 can be connected as an integrated structure, thereby reducing the difficulty of installing the second rack 1 and being advantageous in defining the extension direction of the vehicle body beam relief groove 13, which extends along the first direction X, where the first rack 2A is provided on one side of the second main body wall 12 away from the first main body wall 11 in the second direction Y, and each extension portion 2 is connected to one side of the second main body wall 12 away from the first main body wall 11 in the second direction Y, thereby avoiding interference between the extension portion 2 and the vehicle body beam 20, and making it easier to expand the battery mounting space 4 in the second direction Y, and making it easier to improve the size and size energy density of the battery 30.

[0129] In some embodiments, as shown in Figures 4 and 5, the height of the extension 2 tends to decrease along the direction away from the second main wall 12. It should be noted that "tends to decrease" may mean that it decreases gradually or in steps. Here, the ends of the extension 2 in the height direction Z are defined as the upper and lower ends, and if the height direction Z of the extension 2 coincides with the height direction of the vehicle 1000, then the ends of the extension 2 in the height direction Z are also the upper and lower ends in the direction of gravity.

[0130] This allows the height of the extension portion 2 to be set such that it tends to decrease in the direction away from the second main body wall 12 in the second direction Y, thereby making the height of the region of the extension portion 2 away from the second main body wall 12 relatively small.

[0131] In other words, the height of the end where the extension section 2 is connected to the second main body wall 12 is relatively large, while the height of the end of the extension section 2 that is away from the second main body wall 12 is relatively small. This reinforces the connection strength between the extension section 2 and the second main body wall 12, improves the reliability of mounting the extension section 2 to the battery 30, and reduces the weight of the extension section 2, thereby reducing the load on the vehicle 1000.

[0132] In some embodiments, as shown in Figures 4 and 5, the lower edge of the extension portion 2 extends along a horizontal line, the battery mounting structure 3 is located at the lower edge of the extension portion 2, and the upper edge of the extension portion 2 tends to slope downward in a direction away from the second main body wall 12. It should be noted that "tends to slope downward" may mean a gradual slope or a stepwise slope.

[0133] This allows the lower edge of the extension section 2 to extend along the horizontal line, which is advantageous because all the battery mounting structures 3 are located at the same horizontal height, thereby facilitating the installation of the battery 30.

[0134] For example, when using a tool to extend upward to the position of the battery mounting structure 3 and connect the battery 30 to the battery mounting structure 3, the lifting position of the tool is lower than the extension part 2, thereby reducing the lifting height of the tool. Furthermore, the tool does not need to extend between the battery 30 and the extension part 2, and there is no need to increase the gap between the battery 30 and the extension part 2 to meet the tool's extension requirement, thus reducing wasted space. This allows for further increase in the size of the battery 30 by utilizing the space saved, thereby further improving the size energy density of the battery 30. The difficulty of mounting the battery 30 is also reduced.

[0135] At the same time, the upper edge of the extension portion 2 tends to slope downward in the direction away from the second main body wall 12. As a result, the height of the end where the extension portion 2 is connected to the second main body wall 12 is relatively large, while the height of the end of the extension portion 2 away from the second main body wall 12 is relatively small. This strengthens the connection between the extension portion 2 and the second main body wall 12, improves the reliability of mounting the extension portion 2 to the battery 30, and reduces the weight of the extension portion 2, thereby reducing the load on the vehicle 1000.

[0136] For example, referring to Figures 4 and 5, a mounting edge 21 is provided on the lower edge of the extension portion 2, and the battery mounting structure 3 may be located on the mounting edge 21 when the battery mounting structure 3 is located on the lower edge of the extension portion 2. In this case, the mounting edge 21 may be installed to extend horizontally. This is advantageous because all battery mounting structures 3 are located at the same horizontal height, thereby facilitating the battery mounting operation.

[0137] In some embodiments, as shown in Figures 4 and 5, the vehicle body beam connection structure 15 is provided on at least one of the first rack 2A and the second rack 1.

[0138] The phrase "a vehicle body beam connection structure 15 is provided on at least one of the first rack 2A and the second rack 1" includes the fact that the vehicle body beam connection structure 15 may be installed on the first rack 2A, or on the second rack 1, or furthermore, the vehicle body beam connection structure 15 may be installed on both the first rack 2A and the second rack 1. Here, the specific structure of the vehicle body beam connection structure 15 is not limited and may be, for example, a screw hole, a connection hole, or a locking structure.

[0139] In this way, since the second rack 1 is fitted to the vehicle body beam 20 via the vehicle body beam relief groove 13, both the second rack 1 and the first rack 2A can have portions that are close to the vehicle body beam 20. By installing the vehicle body beam connection structure 15 and connecting it to the vehicle body beam 20 in this way, the battery mounting rack 10 can be easily attached to the vehicle frame 60.

[0140] In some embodiments, at least one of a heat insulating structural member, a heat dissipating structural member, and a buffering structural member is provided on one side of the extended portion 2 facing the battery mounting space 4.

[0141] In the above proposed technology, by installing an insulating structural member, it is made easier to provide insulation to the battery 30 and to improve the heat transfer effect between two adjacent batteries 30. Here, the insulating structural member includes, but is not limited to, insulating cotton, insulating film, or other insulating structures.

[0142] By installing a heat dissipation structural member, it is made easier to dissipate heat from the battery 30, thereby improving the overheating of the battery 30 and reducing the risk of thermal runaway of the battery 30. Here, the heat dissipation structural member includes, but is not limited to, a heat sink, a cooler, or other heat dissipation structures such as a fan.

[0143] By installing a cushioning structural member, it is made easier to provide a cushioning effect to the battery 30, thereby improving the rigid contact between the battery 30 and the cushioning part, protecting the battery 30, and thus extending the service life of the battery 30. Here, the cushioning structural member includes, but is not limited to, sponge, rubber, or elastic materials.

[0144] In some embodiments, as shown in Figures 4 and 5, the battery mounting structure 3 is provided on the extension portion 2.

[0145] In the above proposed technology, by installing the battery mounting structure 3 on the extension section 2, the battery mounting structure 3 occupies space only in the first direction X, thereby avoiding space occupancy in other directions by the battery mounting structure 3. For example, it avoids the space occupying by the battery mounting structure 3 in the width and height directions of the vehicle 1000, thereby increasing the size of the battery 30 in relatively narrow directions (e.g., the width and height directions of the vehicle 1000), which is advantageous in improving the size energy density of the battery 30. Furthermore, the space on the extension section 2 is relatively large, which is advantageous in flexibly setting the distribution position, number, and structural form of the battery mounting structure 3 on the extension section 2, thereby improving the mounting strength of the large battery 30.

[0146] In some embodiments, as shown in Figures 4 and 5, the battery mounting structure 3 is arranged on one side of the extension portion 2 facing the battery mounting space 4.

[0147] As a result, by positioning the battery mounting structure 3 on one side of the extension 2 facing the battery mounting space 4, the battery mounting structure 3 corresponds to the battery mounting space 4 it faces and is used to mount the battery 30 in the battery mounting space 4 it faces. This clarifies the correspondence between the battery mounting structure 3 and the battery mounting space 4, allowing the battery 30 to be extended into the battery mounting space 4 and connected to the battery mounting structure 3 facing this space, thereby facilitating the mounting of the battery 30. Furthermore, if there are multiple battery mounting spaces 4, the positions where the battery mounting structures 3 corresponding to different battery mounting spaces 4 are installed will differ, preventing interference between them. This allows each battery mounting structure 3 corresponding to a battery mounting space 4 to be flexibly installed with sufficient space, thereby enabling the battery 30 to be mounted more easily and reliably.

[0148] In some embodiments, as shown in Figures 4 and 5, at least one of the multiple extensions 2 located in the middle is a common extension 2a, the common extension 2a has battery mounting spaces 4 on both sides in a first direction X, and battery mounting structures 3 are arranged on both sides of the common extension 2a facing the battery mounting spaces 4 on both sides.

[0149] It should be explained that "at least one extension section 2 located in the middle of the multiple extension sections 2 is a common extension section 2a" refers to at least one common extension section 2a remaining from the two extension sections 2 on either side of the multiple extension sections 2 arranged at intervals along the first direction X. For example, if four extension sections 2 are provided, spaced apart along the first direction X, at least one of the two intermediate extension sections 2 is a common extension section 2a. Here, two battery mounting spaces 4 installed adjacent to each other along the first direction X are separated by a common extension section 2a.

[0150] This allows for a reduction in the number of extensions 2 arranged at intervals along the first direction X, provided that the number of battery mounting spaces 4 spaced apart along the first direction X is constant. This reduces costs and is advantageous in reducing the load on the vehicle 1000. For example, in the minimum case, the number of extensions 2 spaced apart along the first direction X may be one more than the number of battery mounting spaces 4, meaning that only one extension 2 is installed between two adjacent battery mounting spaces 4 along the first direction X, which reduces costs and is advantageous in reducing the load on the vehicle 1000.

[0151] However, this application is not limited thereto. For example, two extensions 2 may be installed between two adjacent battery mounting spaces 4 along a first direction X. In this way, each extension 2 can be positioned to correspond to only one of the battery mounting spaces 4, thereby reducing the supporting force of each extension 2 on the battery 30 and improving the mounting reliability of the battery 30.

[0152] For illustrative purposes, referring again to Figure 4, the battery mounting rack 10 includes four extensions 2 distributed at intervals along a first direction X, and the four extensions 2 define three battery mounting spaces 4, with the two intermediate extensions 2 both being common extensions 2a. Of course, the number of battery mounting spaces 4 in the above description is merely for illustrative purposes, and for example, two, three, five, or more battery mounting spaces 4 may be provided in the first direction X of the battery mounting rack 10, and may be set according to the specific needs of the vehicle 1000.

[0153] Furthermore, the number of extensions 2 does not necessarily have to be one more than the number of battery mounting spaces 4; for example, three battery mounting spaces 4 may be defined by five or six extensions 2. However, as can be seen, if the number of extensions 2 does not necessarily have to be one more than the number of battery mounting spaces 4, the number of extensions 2 used can be reduced, thereby lowering the cost and weight of the battery mounting rack 10.

[0154] At the same time, by arranging battery mounting structures 3 on both sides of the common extension 2a that lead to the battery mounting spaces 4 on both sides, it is possible to mount batteries 30 in both battery mounting spaces 4 on both sides of the common extension 2a, and it is advantageous to reduce the difficulty of installing the battery mounting structures 3 by integrating both battery mounting structures 3 on the common extension 2a.

[0155] In some embodiments, the orthographic projections of the battery mounting structures 3 on both sides of the common extension 2a in a projection plane perpendicular to the first direction X are misaligned. For example, the distance to the second rack 1 in a second direction Y from one of the battery mounting structures 3 on one side of the common extension 2a is different from the distance to the second rack 1 in a second direction Y from one of the battery mounting structures 3 on the other side of the common extension 2a.

[0156] This is advantageous because, by setting the orthographic projections of the battery mounting structures 3 on both sides of the common extension 2a to be offset in the projection plane perpendicular to the first direction X, the force distribution of the common extension 2a becomes more rational. 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, problems such as deformation and fracture of the common extension 2a due to stress concentration are reduced, improving the service life of the common extension 2a and thereby improving the reliability of the battery mounting 30.

[0157] In some embodiments, referring to Figures 4 and 5, the extension portion 2 includes a mounting edge 21 that protrudes into the battery mounting space 4, and the battery mounting structure 3 is located on the mounting edge 21.

[0158] This makes it advantageous to reduce the difficulty of installing the battery mounting structure 3 by installing the mounting edge 21, easily enables the battery mounting structure 3 to be located on one side of the extension 2 facing the battery mounting space 4, and allows the mounting edge 21 to perform a certain direct or indirect support function on the battery 30, thereby improving the mounting stability of the battery 30.

[0159] In some embodiments, as shown in Figures 4 and 5, the battery mounting space 4 is provided with battery mounting structures 3 on both sides of the extensions 2 in the first direction X.

[0160] As a result, both sides of the battery 30 mounted in the battery mounting space 4 can be connected to the battery mounting structure 3 of the extensions 2 on both sides in the first direction X of the battery mounting space 4, and both extensions 2 on both sides in the first direction X of the battery mounting space 4 can perform the function of supporting the battery 30 in the battery mounting space 4, and the battery mounting structures 3 on both sides distribute the force bearing, reducing problems such as deformation and fracture of the extensions 2 due to stress concentration, improving the service life of the extensions 2, and thereby improving the mounting reliability of the battery 30.

[0161] In some embodiments, the orthographic projections of the battery mounting structures 3 on both sides of the battery mounting space 4 in a first direction X are misaligned in a projection plane perpendicular to the first direction X. For example, the distance to the second rack 1 in a second direction Y from any one battery mounting structure 3 on one side of the battery mounting space 4 is different from the distance to the second rack 1 in a second direction Y from any one battery mounting structure 3 on the other side of the battery mounting space 4.

[0162] This allows the battery mounting structures 3 on both sides of the battery mounting space 4 to be positioned such that their orthographic projections on a projection plane perpendicular to the first direction X are offset. This distributes the force bearing across the battery mounting structures 3 on both sides, which is advantageous in further improving problems such as deformation and fracture of the stretched portion 2 due to stress concentration.

[0163] Furthermore, if the orthographic projections of the battery mounting structures 3 on both sides of the common extension portion 2a in the first direction X are misaligned in 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 in the first direction X are misaligned in the projection plane perpendicular to the first direction X, then multiple extension portions 2 may all be configured with the same structure, thereby simplifying the structure, making it easier to process, reducing costs, and improving assembly efficiency.

[0164] In some embodiments, multiple battery mounting structures 3 are provided on one side of the extension 2 facing the battery mounting space 4, and at least two of the battery mounting structures 3 are installed at intervals along the longitudinal direction of the extension 2 (for example, the second direction Y shown in Figure 4). This is advantageous for making full use of the space in the longitudinal direction of the extension 2 and for arranging a larger number of battery mounting structures 3, thereby improving the mounting stability of the batteries 30 or increasing the number of batteries 30 installed in the battery mounting space 4.

[0165] In some embodiments, the stretched portion 2 is plate-shaped, with its thickness direction being the first direction X, its longitudinal direction being the second direction Y, and its width direction being the height direction Z.

[0166] As a result, by installing the extension portion 2 in a plate shape and defining the first direction X and the second direction Y as described above, the battery mounting space 4 can be positioned on one or both sides in the thickness direction of the extension portion 2. This allows the battery mounting space 4 to be defined by making full use of the length structure characteristics of the extension portion 2, making the space occupied by the extension portion 2 relatively small and the defined battery mounting space 4 relatively large.

[0167] Furthermore, when the battery mounting rack 10 defines multiple battery mounting spaces 4 in the thickness direction of the extension portion 2, the distance between two adjacent battery mounting spaces 4 in the thickness direction of the extension portion 2 is equal to the thickness of the extension portion 2. This makes the gap between two adjacent battery mounting spaces 4 relatively small, thereby allowing more battery mounting spaces 4 to be installed in the thickness direction of the extension portion 2, which is advantageous in further improving space utilization.

[0168] For example, if the thickness direction of the extension portion 2 is the same as the longitudinal direction of the vehicle 1000, and the longitudinal direction of the extension portion 2 is the same as the width direction of the vehicle 1000, the mounting space for the battery 30 can be expanded in both the longitudinal and width directions of the vehicle 1000, and the driving range of the vehicle 1000 with a single battery change can be improved.

[0169] In some embodiments, as shown in Figure 5, reinforcing ribs 22 and / or weight-reducing structures 23 are installed on the extended portion 2.

[0170] This is advantageous in that the structural strength of the extended section 2 is reinforced by installing the reinforcing ribs 22, improving the problem of the extended section 2 deforming under force, and improving the reliability of the extended section 2 on the battery 30.

[0171] Here, the reinforcing rib 22 may include, but is not limited to, strip-shaped reinforcing protrusions or thickening of a localized area of ​​the extended portion 2, and the structural form of the reinforcing rib 22 is not limited, and may be, for example, straight, curved, or intersecting.

[0172] For example, when a battery 30 is mounted on the battery mounting structure 3 of the extension section 2, the force bearing is concentrated at the location of the battery mounting structure 3 of the extension section 2, making it prone to deformation and damage. Therefore, at least some of the reinforcing ribs 22 may be positioned corresponding to the battery mounting structure 3. By reducing the number of reinforcing ribs 22 in this way, the effect on the structural strength of the extension section 2 can be significantly improved, and the reliability of mounting the battery 30 on the extension section 2 can be enhanced.

[0173] For example, when multiple battery mounting structures 3 are provided on the extension 2, at least some of the reinforcing ribs 22 are positioned correspondingly between two adjacent battery mounting structures 3. When batteries 30 are mounted on the battery mounting structures 3 on the extension 2, force bearings are concentrated at the battery mounting structures 3 on the extension 2, making them prone to deformation and damage. By positioning at least some of the reinforcing ribs 22 correspondingly between two adjacent battery mounting structures 3, the structural strength between the two adjacent battery mounting structures 3 on the extension 2 is strengthened, improving the problem of stress concentration between the two adjacent battery mounting structures 3 leading to fracture, and enhancing the reliability of mounting batteries 30 on the extension 2.

[0174] By installing the weight-reducing structure 23, it is advantageous to reduce the weight of the extension section 2 and to realize a lightweight design for the extension section 2. Here, the "weight-reducing structure 23" may include, but is not limited to, weight-reducing holes, weight-reducing grooves, or thinning treatments.

[0175] Furthermore, when the reinforcing ribs 22 and the weight-reducing structure 23 are installed simultaneously on the extension section 2, the weight of the extension section 2 increases due to the installation of the reinforcing ribs 22. Therefore, the weight can be reduced by installing the weight-reducing structure 23. In this way, both the reliability and weight reduction of the extension section 2 can be achieved.

[0176] In some embodiments, referring to Figure 4, the first rack 2A further includes a reinforcing section 5 that connects at least two extension sections 2.

[0177] This is advantageous in strengthening the overall structural strength of the battery mounting rack 10, reducing deformation caused by force on the extension portion 2, and improving the reliability of battery mounting 30.

[0178] For example, the reinforcing section 5 and the second rack 1 are positioned on both sides of the extension section 2 in the second direction Y, respectively.

[0179] This allows the two extensions 2 defining the battery mounting space 4 to be connected at both ends in the second direction Y by the second rack 1 and the reinforcing part 5, respectively. In this way, the structure surrounding the battery mounting space 4 is formed in an annular shape, resulting in higher structural strength, relatively high mounting reliability for 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.

[0180] In a second embodiment, referring to Figures 3 and 4, the present application provides a vehicle frame assembly 100 including a vehicle frame 60 and a battery mounting rack 10 of any one embodiment described above, the battery mounting rack 10 being used to mount a battery 30 to the vehicle frame 60, and the first direction X is the longitudinal direction of the vehicle frame 60.

[0181] Specifically, the battery mounting rack 10 is attached to the vehicle frame 60, and then the battery 30 is connected to the battery mounting structure 3, thereby completing the assembly of the battery 30 to the battery mounting rack 10, and the battery mounting rack 10 can then be used to mount the battery 30 to the vehicle frame 60.

[0182] As a result, when batteries 30 are installed in a vehicle using such a battery mounting rack 10, the battery mounting rack 10 includes multiple battery mounting spaces 4 arranged along the longitudinal direction of the vehicle frame 60. Therefore, the battery mounting rack 10 can make full use of the space along the longitudinal direction of the vehicle frame 60 to install a larger number of batteries 30. Furthermore, when replacing batteries, only the batteries 30 that have run out of power need to be replaced, and the batteries 30 that have not run out of power need to be left in place. This improves the energy utilization rate of the batteries 30 and alleviates the problem of energy waste.

[0183] In some embodiments, the battery mounting rack 10 is provided at the bottom of the vehicle frame 60, the vehicle frame 60 includes a body beam 20, and a first rack 2A is provided on at least one side in the width direction of the body beam 20, and at least a portion of the first rack 2A is higher than the bottom surface of the body beam 20 of the vehicle frame 60 in the height direction Z of the vehicle frame 60, so that at least a portion of the battery mounting space 4 is higher than the bottom surface of the body beam 20.

[0184] In the embodiments of this application, the longitudinal direction of the vehicle frame 60, the longitudinal direction of the vehicle 1000, and the longitudinal direction of the vehicle body beam 20 all coincide, and the width direction of the vehicle frame 60, the width direction of the vehicle 1000, and the width direction of the vehicle body beam 20 all coincide. Here, the vehicle body beam 20 refers to an intermediate beam located at the bottom of the vehicle 1000 and extending along the longitudinal direction of the vehicle 1000, and is also called the vehicle bottom beam. It should be explained that the specific configuration of the vehicle body beam 20 in the embodiments of this application is not limited, and for example, linking Figures 3 and 4, it may include two longitudinal beams 201 extending along the longitudinal direction of the vehicle 1000 (for example, the first direction X shown in Figure 4) and at least one transverse beam 202 extending along the width direction of the vehicle 1000 (for example, the second direction Y shown in Figure 4), the two longitudinal beams 201 are installed at intervals along the width direction of the vehicle 1000, and the transverse beam 202 is connected between the two longitudinal beams 201.

[0185] As a result, the battery mounting space 4 is not entirely lower than the vehicle body beam 20, but at least partially higher than the bottom surface of the vehicle body beam 20 and located on at least one side in the width direction of the vehicle body beam 20, thereby allowing the extension section 2 and the battery mounting space 4 to be positioned by making full use of the space at the bottom of the vehicle frame 60, which is advantageous for mounting a relatively large battery 30 on the battery mounting rack 10, thereby improving the driving range of the vehicle 1000 with a single battery change.

[0186] In some embodiments, the first racks 2A are provided symmetrically on both sides in the width direction of the vehicle body beam 20. That is, the first racks 2A are provided on both sides in the width direction of the vehicle body beam 20, and the first racks 2A on both sides in the width direction of the vehicle body beam 20 are installed symmetrically, thereby simplifying the structure of the battery mounting rack 10, making it easier to manufacture, making full use of the space under the vehicle, and allowing for the installation of a larger number or larger size of batteries 30.

[0187] According to a third aspect, the present application provides a vehicle 1000 including a battery 30 and a vehicle frame assembly 100 of any one embodiment described above, wherein at least a portion of the battery 30 is housed in a battery mounting space 4.

[0188] As a result, at least a portion of the battery 30 is housed within the battery mounting space 4, thereby allowing the battery 30 to be mounted on the vehicle 1000, increasing the ground clearance of the battery 30, thereby increasing the ground clearance of the vehicle 1000, and making the battery mounting space 4 more readily usable, thereby reducing the mounting space occupied by the battery 30. Furthermore, it is advantageous to increase the number of batteries 30 that can be mounted, and it is possible to select which batteries 30 to replace as needed, thereby reducing energy waste.

[0189] For example, the bottom of the battery compartment 4 is open, allowing the battery 30 to be inserted into the battery compartment 4 from bottom to top, thereby facilitating the installation of the battery 30. Furthermore, the battery compartment 4 may be installed in a configuration where both the bottom and top are open, thereby improving the space utilization rate in the height direction of the battery 30 and increasing the height size and size energy density of the battery 30.

[0190] In some embodiments, the battery 30 is mounted in one of the battery compartments 4 in a removable and replaceable manner.

[0191] As a result, the battery 30 can be arbitrarily installed in one of the battery mounting spaces 4, thereby improving the versatility of the battery mounting space 4, reducing the difficulty of installing the battery 30, and improving the flexibility of the selection position for battery replacement and installation of the battery 30.

[0192] This application is not limited thereto, and in other embodiments, for example, the battery 30 may be installed in a removable and replaceable manner only in a battery mounting space 4 of a corresponding size.

[0193] In some embodiments, as shown in Figures 3 and 6, the vehicle 1000 includes a plurality of batteries 30 arranged along a first direction X, each of which is mounted in a one-to-one correspondence with a plurality of battery mounting spaces 4.

[0194] As a result, multiple batteries 30 are mounted in a one-to-one correspondence with multiple battery mounting spaces 4, thereby enabling the mounting of multiple batteries 30 arranged along the first direction X by the first rack 2A, i.e., multi-pack mounting, thereby making full use of the space in the longitudinal direction of the vehicle 1000 to increase the number of batteries 30, and thereby improving the driving range of the vehicle 1000 with a single battery change.

[0195] In some embodiments, as shown in Figures 7 and 8, the battery 30 includes a battery upper part 30a and a battery lower part 30b, the battery upper part 30a is housed in the battery mounting space 4, and the battery 30 has a mounting structure 30c provided between the battery upper part 30a and the battery lower part 30b, the mounting structure 30c is detachably connected to the battery mounting structure 3.

[0196] As a result, when the battery 30 is mounted on the battery mounting rack 10, the upper part 30a of the battery can extend into the battery mounting space 4, and the extension part 2 can provide a certain protective effect to the upper part 30a of the battery, thereby reducing the risk of damage to the battery 30 and extending the service life of the battery 30. At the same time, the height of the extension part 2 does not have to be smaller than the height of the battery 30, and the height of the extension part 2 can be reduced, thereby reducing the weight and cost of the battery mounting rack 10. Furthermore, the mounting structure 30c can be positioned between the upper part 30a and the lower part 30b of the battery, and the battery mounting structure 3 can be positioned at the lower edge of the extension part 2, which is advantageous for battery replacement operations as described above. In addition, since the mounting structure 30c is detachably connected to the battery mounting structure 3, the difficulty of replacing the battery 30 is reduced, making it easier to improve battery replacement efficiency.

[0197] Here, the method of connecting the mounting structure 30c and the battery mounting structure 3 includes, but is not limited to, connection by bolts, locking, insertion, or magnetic attraction fitting.

[0198] In some embodiments, referring to Figures 7 and 8, in 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, thereby forming a stepped surface 30d between the upper part 30a and the lower part 30b of the battery, the bottom of the battery mounting space 4 is open, thereby allowing the upper part 30a of the battery to be inserted into the battery mounting space 4 from bottom to top, the stepped surface 30d is locked to the bottom of the extension 2, thereby allowing at least a portion of the upper part 30a of the battery to extend into the battery mounting space 4, and the lower part 30b of the battery to be located outside the battery mounting space 4.

[0199] It should be explained that the locking of the stepped surface 30d to the bottom of the extension 2 should be understood in a broad sense; that is, the locking action may be achieved by direct contact between the stepped surface 30d and the extension 2, or by indirect contact. For example, a battery mounting structure 3 may be installed at the lower position of the extension 2, and at the same time, a mounting structure 30c may be installed on the stepped surface 30d. When the mounting structure 30c is fitted and connected to the battery mounting structure 3, the stepped surface 30d is locked to the bottom of the extension 2.

[0200] This allows the battery 30 to be signaled when its assembly is complete when the upper part 30a extends from bottom to top into the battery mounting space 4 during actual installation. The locking mechanism between the bottom of the extension part 2 and the stepped surface 30d is used to indicate that the assembly of the battery 30 is complete, thereby preventing the battery 30 from extending excessively into the battery mounting space 4 and pressing against the underside of the vehicle, thus protecting the battery 30. Furthermore, by setting the size of the lower part 30b of the battery larger than the size of the upper part 30a of the battery, the size of the battery 30 can be increased to some extent, thereby further improving the size energy density of the battery 30.

[0201] In some embodiments, referring to Figures 9 and 10, the battery 30 includes two battery side portions 30e and a battery central portion 30f, and in the width direction of the vehicle frame 60, the two battery side portions 30e are each located on either side of the battery central portion 30f, and the top surface of the battery central portion 30f is lower than the top surface of the battery side portions 30e, thereby forming a position avoidance groove 30g between the two battery side portions 30e and the battery central portion 30f that penetrates along the longitudinal direction of the vehicle frame 60 and has an open top to allow clearance for the vehicle body beam 20, and at least one of the battery side portions 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3.

[0202] "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 being detachably connected to the battery mounting structure 3, or the battery central portion 30f being detachably connected to the battery mounting structure 3, or the battery side portion 30e and the battery central portion 30f being detachably connected to the corresponding battery mounting structure 3.

[0203] Here, the removable connection between the battery side portion 30e and the battery mounting structure 3 may be detachably connected to the battery mounting structure 3 via a mounting structure 30c on the battery side portion 30e, and the position of the mounting structure 30c on the battery side portion 30e is not limited and may be located, for example, in the center, upper or lower part of the battery side portion 30e.

[0204] Here, the removable connection between the battery central portion 30f and the battery mounting structure 3 may be made removable via a mounting structure 30c on the battery central portion 30f, and the position of the mounting structure 30c on the battery central portion 30f is not limited and may be located, for example, in the center, upper or lower part of the battery central portion 30f.

[0205] Here, the connection method between the battery side portion 30e and / or the battery central portion 30f and the battery mounting structure 3 via the mounting structure 30c includes, but is not limited to, connection by bolts, locking, insertion, or magnetic attraction fitting.

[0206] This makes the structure of the battery 30 ingenious, as it allows for ample use of the space on both sides of the width of the vehicle body beam 20 by accommodating the vehicle body beam 20, thereby increasing the overall size of the battery 30 and improving the size energy density of the battery 30. At the same time, it is advantageous to improve the design flexibility of the battery 30 by making at least one of the battery side portion 30e and the battery central portion 30f detachably connected to the battery mounting structure 3. Here, if both battery side portions 30e are connected to the battery mounting structure 3, or if both the battery side portion 30e and the battery central portion 30f are connected to the battery mounting structure 3, the mounting stability of the battery 30 can be improved.

[0207] For example, as shown in Figure 10, at least a portion of the vehicle body beam 20 is located within the position avoidance groove 30g and above the battery central portion 30f, and the two battery side portions 30e can each be located on either side in the width direction of the vehicle body beam 20. In this way, the space on both sides in the width direction of the vehicle body beam 20 can be fully utilized to accommodate a larger battery 30.

[0208] It should be noted that the form of the battery 30 in the embodiment of this application is not limited thereto; for example, it may include only one battery side portion 30e, or it may include a battery central portion 30f and one battery side portion 30e simultaneously.

[0209] In recent years, in several application scenarios such as logistics, docks, and mining, battery swapping has become an important means of replenishing the energy of pure electric commercial vehicles, and the pace of construction of battery swapping stations is constantly accelerating. To ensure universal compatibility for battery swapping, it is important to make full use of battery swapping facilities such as battery swapping stations and charging equipment to reduce resource waste.

[0210] This application provides several embodiments relating to chassis-type battery swapping, which are advantageous in improving battery swapping compatibility. However, the following embodiments are not limited to applications in pure electric vehicles, and other forms of battery-swapping vehicles can also be used by reference.

[0211] In some embodiments, the operating voltage range of the replaceable battery system is 400V to 750V.

[0212] In some embodiments, the flatness of the battery replacement contact surface of the replaceable battery system is ≤4 mm. Specifically, the contact interface between the replaceable battery system and the battery mounting rack should be a single plane, free from convex structures, and the flatness should be less than 4 mm in all cases.

[0213] In some embodiments, the size tolerance of the replaceable battery system is within the range of ±10 mm.

[0214] In some embodiments, for the replaceable battery system, the weight M1 of the vehicle and the battery power Q satisfy 0 kg < M1 ≤ 1400 kg, 100 kWh ≤ Q ≤ 200 kWh, or 1400 kg < M1 ≤ 2800 kg, 200 kWh < Q ≤ 400 kWh, or 2800 kg < M1 ≤ 4200 kg, 400 kWh < Q ≤ 600 kWh, or 4200 kg < M1 ≤ 5600 kg, 600 kWh < Q ≤ 800 kWh.

[0215] In some embodiments, as shown in FIGS. 11-12, the replaceable battery system should be replaced on the vehicle corresponding to the envelope space, and the size of the battery in the replaceable battery system is labeled as shown in FIGS. 13-14.

[0216] In some embodiments, referring to FIGS. 11-14, a safety gap L0 is ensured between the front and rear end faces of the replaceable battery system and the whole vehicle, and L0 ≥ 50 mm.

[0217] In some embodiments, referring to FIGS. 11-14, the size L along the vehicle length direction of the replaceable battery system satisfies 700 mm ≤ L ≤ 900 mm, or 15 mm ≤ L ≤ 1700 mm, or 2300 mm ≤ L ≤ 2500 mm, or 3100 mm ≤ L ≤ 3300 mm.

[0218] In some embodiments, referring to FIGS. 11-14, the size W along the vehicle width direction of the replaceable battery system satisfies 2300 mm ≤ W ≤ 2550 mm.

[0219] In some embodiments, referring to FIGS. 11-14, the overall height H of the replaceable battery system satisfies H ≤ 680 mm.

[0220] In some embodiments, referring to FIGS. 11-14, the length size L1 of the upper layer boss (for example, the upper part 30a of the battery) of the replaceable battery system satisfies 600 ≤ L1 ≤ 700.

[0221] In some embodiments, referring to Figures 11-14, the width size W1 of the bosses on both sides of the upper layer of the replaceable battery system (e.g., the upper part 30a of the battery on the side 30e) satisfies W1 ≤ 805 mm.

[0222] In some embodiments, referring to Figures 11-14, the width size W2 of the upper intermediate boss of the replaceable battery system (e.g., the upper part 30a of the battery in the central part 30f of the battery) satisfies W2 ≤ 640 mm.

[0223] In some embodiments, referring to Figures 11-14, the height size H1 of the bosses on both sides of the upper layer of the replaceable battery system (e.g., the upper part 30a of the battery on the side 30e) satisfies H1 ≤ 300 mm.

[0224] In some embodiments, referring to Figures 11-14, the height size H2 of the upper layer intermediate boss of the replaceable battery system (e.g., the upper part 30a of the battery in the central part 30f of the battery) satisfies H2 ≤ 150 mm.

[0225] Currently, application scenarios for large electric trucks mainly include trunk line logistics, short-to-medium distance operations (e.g., transporting excavated soil in cities), and closed-off operations (e.g., ports). The demand for electricity used can be broadly divided into three categories: 400-600kWh, 300-400kWh, and 150-200kWh. As can be seen from this electricity volume series, standard pack solutions can be flexibly combined and applied to different scenarios. For example, the electricity capacity of a standard replaceable battery system is approximately 150-200kWh, and the electricity demand can be met using three standard replaceable battery systems (abbreviated as a triple pack), two standard replaceable battery systems (abbreviated as a double pack), or a single standard replaceable battery system (abbreviated as a single pack).

[0226] Currently, the main types of heavy-duty electric trucks are 6*4 tow trucks, 4*2 tow trucks, 8*4 dump trucks, 6*4 dump trucks, 4*2 trucks, and 6*4 trucks. Of these, the 6*4 tow trucks and 8*4 dump trucks have relatively short wheelbases, while the other types are interchangeable. Here, for the 6*4 tow truck: The wheelbase of conventional gasoline trucks is 3300mm, which is an ideal wheelbase, but at this stage, it is not possible to place a large amount of power. For vehicles with rear-mounted battery swapping, the wheelbase has now been extended to 3800mm, but even in this space, the target amount of power cannot be placed. Currently, clients are pushing to extend the wheelbase to 4200mm, and based on this wheelbase, the battery space can be allocated. Here, for the 8*4 dump truck: Some are used in cities, while others are used in mining areas. The wheelbase of 8*4 dump trucks used in mining areas is relatively long, guaranteeing transport capacity, and the larger wheelbase allows for the placement of the target amount of power. Conventional gasoline-powered 8*4 dump trucks have a wheelbase of 2500-2600mm, and this space cannot accommodate the target amount of power. For vehicles with rear-mounted battery swapping, the wheelbase is extended to 3200-3300mm, and chassis-mounted battery swapping allows for the allocation of battery space based on this extended wheelbase.

[0227] Considering that the space limiting element at the front end of the battery, including the leaf spring and its bracket, is currently around 1600-1800mm in the industry under heavy load conditions (900mm on each side), and the space limiting element at the rear end of the battery, including the fender, is about 700mm away from the center of the wheel, and a safety clearance of 50mm is ensured at both the front and rear ends of the battery, the envelope size into which a 6*4 towing vehicle can be divided into a replaceable battery system is approximately 4200-900-700-100=2500mm (3 packs), and the envelope size into which an 8*4 dump truck can be divided into a replaceable battery system is approximately 3300-900-700-100=1600mm (2 packs). Based on the envelope space of these two types of replaceable battery systems, and considering a gap of 20-30mm between replaceable battery systems, the length envelope size into which each replaceable battery system can be divided is approximately 700-820mm.

[0228] The width envelope size of a replaceable battery system should be designed to not exceed the vehicle width required by regulations; for example, the width of a large electric truck is 2550 mm.

[0229] The height envelope size of the replaceable battery system is designed considering that the upper end of the replaceable battery system maintains a 20 mm gap with the upper wing surface of the vehicle beam, and the bottom surface of the replaceable battery system maintains a ground clearance of 300 mm or 400 mm or more from the ground. The ground clearance of the upper wing surface of the vehicle beam is generally 1000 to 1100 mm, and therefore the height envelope size that can be divided into the replaceable battery system is approximately 580 to 780 mm.

[0230] Furthermore, in order to improve battery replacement compatibility, this application further provides several embodiments relating to the battery mounting rack 10.

[0231] In some embodiments, referring to Figure 15, the length of the battery mounting space 4 in the longitudinal direction of the vehicle (e.g., the first direction X) is Y1, and satisfies the condition 620 mm ≤ Y1 ≤ 720 mm.

[0232] In some embodiments, referring to Figure 15, the width of the battery mounting space 4 in the vehicle width direction (e.g., second direction Y) is N1, and the condition 690 mm ≤ N1 ≤ 815 mm is satisfied.

[0233] In some embodiments, referring to Figure 15, the minimum width between the two second main body walls 12 (e.g., battery escape opening 14) in the vehicle width direction (e.g., second direction Y) is N2, and satisfies 660 mm ≤ N2 ≤ 680 mm.

[0234] In some embodiments, referring to Figure 16, the total width of the battery mounting rack 10 in the vehicle's width direction (e.g., second direction Y) is P, and the total length of the battery mounting rack 10 in the vehicle's longitudinal direction (e.g., first direction X) is R, and the following conditions are met: 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).

[0235] The above embodiments are merely for illustrative purposes and not limiting purposes, and while the application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications may still be made to the inventions described in the above embodiments, or that some or all of their technical features may be replaced with equivalent substitutions, and such modifications or substitutions should not cause the essence of the corresponding invention to deviate from the scope of the inventions in the embodiments of the application, and should all be included within the scope of the claims and specification of the application. In particular, unless there is a structural conflict, the technical features referred to in each embodiment may be combined in any manner. The application is not limited to the specific embodiments disclosed in the specification, but includes all inventions that fall within the scope of the claims. [Explanation of symbols]

[0236] Vehicle 1000, vehicle frame assembly 100, battery mounting rack 10, body beam 20, vertical beam 201, horizontal beam 202, battery 30, upper part of battery 30a, lower part of battery 30b, mounting structure 30c, stepped surface 30d, side part of battery 30e, central part of battery 30f, position avoidance groove 30g, housing 301, first part 3011, second part 3012, battery cell 302, controller 40, motor 50, vehicle frame 60, second rack 1, first direction X, first main body wall 11, second main body wall 12, body beam relief groove 13, battery relief opening 14, body beam connection structure 15, first rack 2A, extension part 2, second direction Y, height direction Z of extension part, common extension part 2a, mounting edge 21, reinforcing rib 22, weight reduction structure 23, battery mounting structure 3, battery mounting space 4, reinforcing part 5.

Claims

1. A battery mounting rack, wherein the battery mounting rack includes a first rack, the first rack includes a plurality of extensions spaced apart along a first direction, and a plurality of battery mounting spaces arranged sequentially along the first direction, the battery mounting spaces being defined between two adjacent extensions along the first direction, and the battery mounting rack is provided with a battery mounting structure for mounting batteries in the battery mounting spaces.

2. The battery mounting rack according to claim 1, wherein the lengths of at least two of the battery mounting spaces on the first rack are equal in the first direction.

3. The battery mounting rack according to claim 1 or 2, wherein the lengths of at least two of the battery mounting spaces on the first rack do not coincide in the first direction.

4. The battery mounting rack according to any one of claims 1 to 3, wherein the battery mounting rack includes two first racks spaced apart along a second direction, each first rack including a plurality of battery mounting spaces arranged sequentially along the first direction, and the second direction intersects the first direction.

5. The battery mounting rack according to claim 4, wherein the extensions in the two first racks are installed in a one-to-one correspondence along the second direction, and the longitudinal extension directions of the two corresponding extensions are the same, and the orthographic projections along the longitudinal extension directions overlap.

6. The battery mounting rack according to claim 5, wherein the first direction is perpendicular to the second direction, the longitudinal extension direction of the extension portion is the second direction, and the battery mounting spaces on the two first racks are arranged symmetrically.

7. The battery mounting rack according to any one of claims 4 to 6, further comprising a second rack, the second rack being connected to two of the first racks spaced apart along the second direction, the second rack comprising a body beam relief groove, the body beam relief groove having an opening that penetrates along the first direction.

8. The battery mounting rack according to claim 7, wherein the second rack includes a first main body wall, the first main body wall is a plurality of walls and is spaced apart along the first direction, thereby forming a battery escape opening between two adjacent first main body walls, and the battery escape opening and the battery mounting space are positioned opposite each other along the second direction.

9. The battery mounting rack according to claim 8, wherein the second rack further includes a second body wall, the second body wall extends along the first direction, there are two second body walls and each is spaced apart on both sides of the first body wall along the second direction, thereby defining the body beam relief groove between the first body wall and the two second body walls, the first rack is provided on one side of the second body wall away from the first body wall in the second direction, and each of the extensions is connected to the second body wall.

10. The battery mounting rack according to claim 9, wherein the height of the extension portion tends to decrease in the direction away from the second main body wall.

11. The battery mounting rack according to claim 10, wherein the lower edge of the extension extends along a horizontal line, the battery mounting structure is located at the lower edge of the extension, and the upper edge of the extension tends to slope downward in a direction away from the second main body wall.

12. A battery mounting rack according to any one of claims 7 to 11, wherein a vehicle body beam connection structure is provided on at least one of the first rack and the second rack.

13. The battery mounting rack according to any one of claims 1 to 12, wherein at least one of a heat insulating structural member, a heat dissipating structural member, and a buffering structural member is provided on one side of the extended portion facing the battery mounting space.

14. The battery mounting structure is a battery mounting rack provided in the extended portion, according to any one of claims 1 to 13.

15. The battery mounting rack according to claim 14, wherein the battery mounting structure is arranged on one side of the extension portion facing the battery mounting space.

16. The battery mounting rack according to claim 15, wherein at least one of the multiple extensions located in the middle is a common extension, the common extension has battery mounting spaces on both sides in the first direction, and the battery mounting structures are arranged on both sides of the common extension facing the battery mounting spaces.

17. The battery mounting rack according to claim 16, wherein the orthographic projections of the battery mounting structures on both sides of the common extension in the first direction are misaligned in a projection plane perpendicular to the first direction.

18. The battery mounting rack according to any one of claims 15 to 17, wherein the extended portion includes a mounting edge that protrudes into the battery mounting space, and the battery mounting structure is located at the mounting edge.

19. The battery mounting rack according to any one of claims 14 to 18, wherein the battery mounting structure is provided on both extensions of the battery mounting space in the first direction.

20. The battery mounting rack according to claim 19, wherein the orthographic projections of the battery mounting structures on both sides in the first direction of the battery mounting space are misaligned in a projection plane perpendicular to the first direction.

21. A battery mounting rack according to any one of claims 14 to 20, wherein a plurality of the battery mounting structures are provided on one side of the extension portion facing the battery mounting space, and at least two of the battery mounting structures are installed at intervals along the longitudinal direction of the extension portion.

22. The battery mounting rack according to any one of claims 1 to 21, wherein the extended portion is plate-shaped and its thickness direction is the first direction, its longitudinal direction is the second direction, and its width direction is the height direction.

23. The battery mounting rack according to any one of claims 1 to 22, wherein reinforcing ribs and / or a weight-reducing structure are installed in the extended portion.

24. The battery mounting rack according to any one of claims 1 to 23, wherein the first rack further includes a reinforcing portion connecting at least two of the extension portions.

25. A vehicle frame assembly comprising a vehicle frame and a battery mounting rack according to any one of claims 1 to 24, wherein the battery mounting rack is used to mount a battery to the vehicle frame, and the first direction is the longitudinal direction of the vehicle frame.

26. The vehicle frame assembly according to claim 25, wherein the battery mounting rack is provided at the bottom of the vehicle frame, the vehicle frame includes a body beam, the first rack is provided on at least one side in the width direction of the body beam, and at least a portion of the first rack is higher than the bottom surface of the body beam of the vehicle frame in the height direction of the vehicle frame.

27. The vehicle frame assembly according to claim 26, wherein the first racks are symmetrically provided on both sides in the width direction of the vehicle body beam.

28. A vehicle comprising a battery and a vehicle frame assembly according to any one of claims 25 to 27, wherein at least a portion of the battery is housed in the battery mounting space.

29. The vehicle according to claim 28, wherein the battery is removable and replaceable in any one of the battery mounting spaces.

30. The vehicle according to claim 28 or 29, wherein the vehicle includes a plurality of batteries arranged along the first direction, and each of the plurality of batteries is mounted in a one-to-one correspondence with a plurality of battery mounting spaces.

31. The vehicle according to any one of claims 28 to 30, wherein the battery includes a battery upper part and a battery lower part, the battery upper part is housed in the battery mounting space, the battery has a mounting structure provided at a position between the battery upper part and the battery lower part, and the mounting structure is detachably connected to the battery mounting structure.

32. In the first direction, the size of the upper part of the battery is smaller than the size of the lower part of the battery, thereby forming a stepped surface between the upper part of the battery and the lower part of the battery, the bottom of the battery mounting space is open, and the stepped surface is locked to the bottom of the extension, as described in claim 31.

33. The vehicle according to any one of claims 28 to 32, wherein the battery comprises two battery sides and a battery center, and in the width direction of the vehicle frame, the two battery sides are each located on either side of the battery center, the top surface of the battery center is lower than the top surface of the battery sides, thereby forming a position avoidance groove between the two battery sides and the battery center that penetrates along the longitudinal direction of the vehicle frame and has an open top to allow the vehicle body beam to pass through, and at least one of the battery sides and the battery center is detachably connected to the battery mounting structure.

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