Battery mounting rack, frame assembly and vehicle

Abstract

The invention discloses a battery mounting rack, a frame assembly and a vehicle, the battery mounting rack comprises a plurality of extending parts arranged at intervals, a battery mounting space penetrating through the extending parts in the height direction is formed between every two adjacent extending parts, and a battery mounting structure used for mounting a battery in the battery mounting space is arranged on the battery mounting rack. According to the battery mounting frame, the space utilization rate of the battery in the height direction of the extension part can be increased, so that the size of the battery in the height direction of the extension part is increased, the size energy density of the battery is improved, and the endurance mileage of a vehicle during single battery replacement is increased.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery mounting rack, a frame assembly and a vehicle. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automotive industry. Electric vehicles have become an important part of the sustainable development of the automotive industry due to their advantages in energy conservation and environmental protection. For electric vehicles, the energy density of the battery affects the vehicle's range per battery replacement, which is conducive to improvement. Summary of the invention

[0003] In view of the above problems, the present application provides a battery mounting rack, a frame assembly and a vehicle, which can increase the size energy density of the battery, thereby increasing the vehicle's range after a single battery replacement.

[0004] In a first aspect, the present application provides a battery mounting rack, comprising a plurality of extension portions arranged at intervals, a battery mounting space penetrating along a height direction of the extension portions is formed between two adjacent extension portions, and a battery mounting structure for mounting a battery in the battery mounting space is provided on the battery mounting rack.

[0005] In the technical solution of the embodiment of the present application, by setting the battery mounting space to be connected along the height direction of the extension part, the space utilization rate of the battery in the height direction of the extension part can be improved, thereby increasing the size of the battery in the height direction of the extension part, which is conducive to improving the size energy density of the battery, thereby increasing the cruising range of the vehicle for a single battery replacement, and by setting the battery mounting structure, it is conducive to improving the battery replacement efficiency. In addition, since the battery mounting space is connected along the height direction of the extension part, it is conducive to the heat dissipation of the battery, and it is conducive to reducing the weight of the battery mounting frame and reducing the vehicle-mounted burden of the battery mounting frame.

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

[0007] In the above technical solution, two adjacent extension parts can be connected through the main body. In this way, the structure of the battery mounting frame is simpler, easier to design, and convenient for welding or integral molding. When the first direction is the length direction of the vehicle, multiple extension parts are spaced apart and distributed along the length direction of the vehicle, and the space in the length direction of the vehicle can be fully utilized to arrange more extension parts to define a larger number of battery mounting spaces, thereby mounting a larger number of batteries. This can increase the battery size while increasing the number of mounted batteries, thereby increasing the vehicle's range of a single battery change and reducing the number of battery changes per unit mileage.

[0008] In some embodiments, the two extension portions defining the battery mounting space are further connected via a reinforcing portion, and the reinforcing portion and the main body portion are disposed on both sides of the extension portion in the second direction.

[0009] In the above technical solution, by providing a reinforcement portion, the two ends of the two extension portions that define the battery mounting space in the second direction can be connected respectively through the main body portion and the reinforcement portion. In this way, the structure around the battery mounting space is formed into a ring shape, which has higher structural strength and higher reliability for mounting the battery. The battery can be more comprehensively protected from the circumference, and the position of the battery mounting structure can be flexibly selected.

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

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

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

[0013] In the above technical solution, by arranging the battery mounting structure on the side of the extension portion facing the battery mounting space, the battery mounting structure corresponds to the battery mounting space facing which battery mounting structure is used to mount the battery in the battery mounting space facing which battery mounting structure is facing, so that the corresponding relationship between the battery mounting structure and the battery mounting space can be clearly defined, and the battery can be extended into the battery mounting space to be connected to the battery mounting structure facing the battery mounting space, so that the battery mounting can be realized very conveniently. Moreover, when there are multiple battery mounting spaces, there will be no interference between the battery mounting structures corresponding to different battery mounting spaces, so that the battery mounting structure corresponding to each battery mounting space can have a relatively sufficient space for flexible setting, so that the battery mounting structure can mount the battery more easily and reliably.

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

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

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

[0017] In the above technical solution, by setting the extension part to be plate-shaped and defining the first direction and the second direction as above, the battery mounting space can be located on one side or both sides in the thickness direction of the extension part, so that the structural characteristics of the extension part can be fully utilized to define the battery mounting space, so that the space occupied by the extension part is smaller, and the defined battery mounting space is larger.

[0018] In some embodiments, the height of the extension portion decreases along the second direction away from the main body portion.

[0019] In the above technical solution, the height of the extension portion is set to decrease in the second direction away from the main body portion, so that the height of the end of the extension portion connected to the main body portion is relatively large, and the height of the end of the extension portion away from the main body portion is relatively small, thereby enhancing the connection strength between the extension portion and the main body portion, improving the reliability of the extension portion for mounting the battery, and reducing the weight of the extension portion, thereby reducing the load on the vehicle.

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

[0021] In the above technical solution, by setting the battery mounting structure at the lower edge of the extension part in the height direction, the lower edge of the extension part extends along the horizontal line, which is conducive to the battery mounting structure being located at the same height and the height being relatively low, thereby facilitating the battery mounting operation, reducing the difficulty of battery mounting, saving space for battery replacement operations, and increasing the size and energy density of the battery.

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

[0023] In the above technical solution, by providing reinforcing ribs, the structural strength of the extension part is enhanced, the deformation problem of the extension part under stress is improved, and the reliability of the extension part for mounting the battery is improved. By providing a weight-reducing structure, the weight of the extension part is reduced, which is conducive to realizing a lightweight design of the extension part.

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

[0025] In the above technical solution, the battery mounting frame includes a plurality of battery mounting spaces arranged at intervals along the first direction, so that the battery mounting frame can have the function of mounting a plurality of batteries in the first direction, that is, realize the multi-pack mounting function, thereby improving the vehicle's single battery replacement mileage and reducing the number of battery replacements per unit mileage. In addition, when the battery mounting frame is installed on the vehicle frame and the first direction is set as the vehicle length direction, since the battery mounting frame defines a plurality of battery mounting spaces arranged along the first direction, the battery mounting frame has the function of mounting a plurality of batteries along the vehicle length direction, so that the number of batteries that can be arranged on the vehicle can be increased, which is conducive to improving the vehicle's single battery replacement mileage.

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

[0027] In the above technical solution, when the number of battery mounting spaces spaced apart along the first direction is fixed, the number of extensions spaced apart along the first direction can be reduced, thereby facilitating cost reduction and vehicle load reduction.

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

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

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

[0031] In the above technical solution, by setting the battery mounting structures on both sides of the common extension part to be misaligned in the projection on the projection plane perpendicular to the first direction, the force distribution of the common extension part is more reasonable. When the batteries in the battery mounting spaces on both sides of the common extension part are respectively connected to the battery mounting structures on both sides of the common extension part, the stress concentration can be reduced to reduce the deformation, fracture and other problems of the common extension part, thereby improving the service life of the common extension part and improving the mounting reliability of the battery.

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

[0033] In the above technical solution, the extension parts on both sides of the battery mounting space in the first direction can both play the role of supporting the batteries in the battery mounting space, and the battery mounting structures on both sides can disperse the force to reduce stress concentration and cause deformation, fracture and other problems in the extension parts, thereby increasing the service life of the extension parts and improving the battery mounting reliability.

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

[0035] In the above technical solution, by setting the battery mounting structures on both sides of the battery mounting space to be misaligned in the orthographic projection on the projection plane perpendicular to the first direction, it is further beneficial for the battery mounting structures on both sides to disperse the force, and further improve the deformation and fracture of the extension part caused by stress concentration. In addition, when the common extension part has battery mounting structures on both sides in the first direction, and the orthographic projections of the battery mounting structures on both sides of the common extension part are misaligned on the projection plane perpendicular to the first direction, and the orthographic projections of the battery mounting structures on both sides of the battery mounting space in the first direction are misaligned on the projection plane perpendicular to the first direction, multiple extension parts can be constructed as the same structure, so as to simplify the structure, facilitate processing, reduce costs, and improve assembly efficiency.

[0036] In some embodiments, a plurality of extension portions defining a plurality of battery mounting spaces spaced apart along the first direction are connected to the same main body portion.

[0037] In the above technical solution, the same main body can be used to realize the connection of multiple extension parts spaced apart along the first direction, so as to reduce the difficulty of assembling the multiple extension parts.

[0038] In some embodiments, two sides of the main body in the second direction are respectively connected to a plurality of extension portions spaced apart along the first direction.

[0039] In the above technical solution, by arranging a plurality of extension parts spaced along the first direction and connected to the two sides of the main body in the second direction, both sides of the main body in the second direction have the function of accommodating and protecting batteries, and when the extension part has a battery mounting structure, both sides of the main body in the second direction also have the ability to mount batteries, which can make full use of the size of the battery mounting frame in the second direction to increase the number of batteries that can be mounted on the battery mounting frame, so as to make full use of the space of the battery mounting frame in the second direction and help to increase the vehicle's range of a single battery replacement.

[0040] In some embodiments, the extension portions on both sides of the main body are arranged one by one along the second direction, and the length extension directions of the two corresponding extension portions are the same, and the orthographic projections along the length extension direction coincide with each other.

[0041] In the above technical solution, through the above arrangement, the battery mounting spaces correspondingly defined by the extensions on both sides of the main body in the second direction have the same size and corresponding positions, so that when the battery mounting frame is installed with a large-sized battery with a relatively regular shape, the two side parts of the battery can respectively cooperate with the two battery mounting spaces correspondingly arranged on both sides of the main body in the second direction, so that the two battery mounting spaces correspondingly arranged on both sides of the main body can be used together to install a large-sized battery, which is conducive to improving the energy density of the installed battery. And when the extension has a battery mounting structure, the two extensions corresponding to the positions along the second direction can respectively play a bearing role on the two side parts of the large-sized battery, so as to improve the force balance and mounting stability of the battery.

[0042] In some embodiments, the main body includes a beam avoidance groove, and the beam avoidance groove has an opening that passes through along the first direction.

[0043] In the above technical solution, a vehicle beam avoidance groove is provided with an opening which passes through along the first direction so that a part of the vehicle beam can extend into the vehicle beam avoidance groove, and thus the vehicle beam avoidance groove can avoid the vehicle beam, thereby avoiding interference between the battery mounting frame and the vehicle beam, improving the compactness of the cooperation between the battery mounting frame and the vehicle beam, and facilitating the use of the space near the vehicle beam to set the battery, thereby facilitating increasing the size and dimensional energy density of the battery.

[0044] In some embodiments, the main body includes a first main body wall and two second main body walls, the two second main body walls are arranged along the first direction and are respectively connected to the two ends of the first main body wall along the second direction to form a beam avoidance groove with an open top between the two second main body walls and the first main body wall.

[0045] In the above technical solution, two second main body walls are arranged along the first direction and are respectively connected to the two ends of the first main body wall along the second direction, so as to limit the extension direction of the beam avoidance groove so that it extends along the first direction, and a beam avoidance groove with an open top is formed between the two second main body walls and the first main body wall, so as to reduce the difficulty of designing and forming the beam avoidance groove, and help reduce the difficulty of assembling the battery mounting frame to the frame.

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

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

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

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

[0050] In a second aspect, the present application provides a frame assembly, which includes a frame and a battery mounting frame as described in any one of the above embodiments, wherein the battery mounting frame is used to mount the battery to the frame, and the height direction of the extension portion is the height direction of the frame.

[0051] In the above technical solution, when the battery is installed on the frame through the battery mounting rack, the battery mounting space in the height direction of the frame can be expanded, so as to facilitate mounting batteries with larger height dimensions on the battery mounting rack, thereby increasing the vehicle's range of a single battery replacement.

[0052] In some embodiments, the battery is mounted on the bottom of the frame, the frame includes a beam, at least one side of the beam in the width direction is provided with an extension portion, and at least a portion of the extension portion is higher than the bottom surface of the beam.

[0053] In the above technical solution, the bottom space of the frame can be fully utilized to arrange the extension part and the battery mounting space, so as to facilitate mounting larger batteries on the battery mounting frame, thereby increasing the vehicle's range of a single battery replacement.

[0054] In some embodiments, a plurality of extension portions are provided on both sides of the vehicle beam in the width direction, and a plurality of battery mounting spaces are provided on both sides of the vehicle beam in the width direction and are arranged along the length direction of the vehicle beam.

[0055] In the above technical solution, the battery mounting frame can make more effective use of the space on both sides of the width of the vehicle beam, so as to facilitate mounting larger batteries on the battery mounting frame, thereby increasing the vehicle's range after a single battery replacement.

[0056] In a third aspect, the present application provides a vehicle comprising a battery and a frame assembly according to any one of the above embodiments, wherein at least a portion of the battery is accommodated in a battery mounting space.

[0057] In the above technical solution, since the battery mounting space is connected along the height direction of the vehicle, when at least part of the battery is accommodated in the battery mounting space, the height of the battery can be increased while ensuring the height of the battery from the ground, thereby improving the energy density of the battery and increasing the vehicle's range on a single battery replacement.

[0058] In some embodiments, the battery includes a battery upper part and a battery lower part, the battery upper part is accommodated in the battery mounting space, and the battery is provided with a mounting structure 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.

[0059] In the above technical solution, when the battery is mounted on the battery mounting rack, the upper part of the battery can extend into the battery mounting space, and the extension part can be used to protect the upper part of the battery to reduce the risk of damage to the battery, which is beneficial to extending the service life of the battery. At the same time, the height of the extension part can be smaller than the height of the battery, and the height of the extension part can be reduced, thereby reducing the weight and cost of the battery mounting rack. Moreover, the mounting structure is arranged at a position between the upper part and the lower part of the battery, so that it is possible for the battery mounting structure to be located at the lower edge of the extension part, which is beneficial to the battery replacement operation.

[0060] In some embodiments, in the spacing direction of the extensions, the size of the upper battery portion is smaller than the size of the lower battery portion, so as to form a step surface between the upper battery portion and the lower battery portion, and the step surface stops at the bottom of the extension.

[0061] In the above technical solution, when the battery is actually installed, when the upper part of the battery is extended from bottom to top into the battery mounting space, the bottom of the extension part and the stopper of the step surface can be used to remind the battery to be assembled in place, so as to avoid the problem of the battery being excessively extended into the battery mounting space and squeezing and hitting the bottom of the vehicle, thereby protecting the battery. In addition, setting the size of the lower part of the battery larger than the size of the upper part of the battery can further increase the size of the battery to a certain extent, thereby further improving the size energy density of the battery.

[0062] In some embodiments, the battery includes two battery side portions and a battery central portion. In the width direction of the frame, the two battery side portions are respectively located on both sides of the battery central portion, and the top surface of the battery central portion is lower than the top surface of the battery side portions, so as to form a clearance groove between the two battery side portions and the battery central portion, which passes through the length direction of the frame and has an open top for avoiding the vehicle beam. At least one of the battery side portions and the battery central portion is detachably connected to the battery mounting structure.

[0063] In the above technical solution, the structure of the battery is ingenious. By avoiding the vehicle beam to make full use of the space on both sides of the width of the vehicle beam, the overall size of the battery can be increased to improve the size energy density of the battery. At the same time, at least one of the battery side and the battery center is detachably connected to the battery mounting structure, which is beneficial to improving the design flexibility of the battery.

[0064] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0066] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0067] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0068] Figure 3 A schematic diagram of the assembly of a frame assembly and a battery according to some embodiments of the present application;

[0069] Figure 4 A schematic diagram of the structure of a frame assembly of some embodiments of the present application;

[0070] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0071] Figure 6 A schematic diagram of the assembly of a frame assembly and a battery from another perspective according to an embodiment of the present application;

[0072] Figure 7 A schematic diagram of a battery according to an embodiment of the present application;

[0073] Figure 8 for Figure 3 The enlarged view of point B in the middle;

[0074] Fig. 9 A schematic diagram of a battery according to another embodiment of the present application;

[0075] Fig.10 for Figure 3 A partial enlarged view of the

[0076] Fig.11 A schematic diagram of a vehicle according to some embodiments of the present application;

[0077] Fig.12 for Fig.11 Bottom view of the vehicle;

[0078] Fig.13 for Fig.12 Sectional view at EE;

[0079] Fig.14 for Fig.12 Cross-sectional view at FF;

[0080] Fig.15 It is an orthographic projection view of a battery mounting rack according to some embodiments of the present application;

[0081] Fig.16 A cross-sectional view of a battery mounting rack according to some embodiments of the present application.

[0082] Figure numbers: vehicle 1000, frame assembly 100, battery mounting frame 10, vehicle beam 20, longitudinal beam 201, cross beam 202, battery 30, battery upper part 30a, battery lower part 30b, mounting structure 30c, step surface 30d, battery side part 30e, battery central part 30f, make way groove 30g, box body 301, first part 3011, second part 3012, battery cell 302, controller 40, motor 50, frame 60, main body 1, first direction X, first main body wall 11, second main body wall 12, vehicle beam avoidance groove 13, vehicle beam connecting structure 14, 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, reinforcement part 5. DETAILED DESCRIPTION

[0083] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0085] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0086] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0087] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y may represent: X exists alone, X and Y exist at the same time, and Y exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0088] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0089] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0090] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0091] Judging from the current market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0092] Some vehicles in the related art have a mounting frame at the bottom of the vehicle, and the power battery is arranged at the bottom of the vehicle and installed in the mounting frame, wherein the mounting frame has two parts, a lower frame and an upper frame, the upper frame is used to connect to the vehicle frame, the lower frame is used to hold the battery, and the lower frame and the upper frame are connected by quick release. When replacing the battery, the lower frame is removed from the bottom of the upper frame, the battery with insufficient power is taken out from the lower frame, and then the battery with sufficient power is loaded into the lower frame, and then the lower frame is installed upward to the upper frame to realize the battery replacement operation. However, the battery replacement efficiency of this mounting frame is low, and the mounting frame is outsourced to the battery, and the space occupied in the vehicle height direction is large. When the ground space under the vehicle is limited and the height of the battery from the ground needs to be guaranteed, the size of the battery in the vehicle height direction is limited, and the energy density of the battery is difficult to improve. In addition, the weight of the mounting frame is heavy, and the vehicle-mounted burden is large.

[0093] To this end, the present application proposes a battery mounting rack, wherein the battery mounting rack includes a plurality of extension portions arranged at intervals, a battery mounting space penetrating along the height direction of the extension portions is formed between two adjacent extension portions, and a battery mounting structure for mounting the battery in the battery mounting space is provided on the battery mounting rack.

[0094] When using such a battery mounting bracket to install the battery on a vehicle, since the battery mounting space is connected along the height direction of the extension part, that is, there is no structural obstruction of the battery mounting bracket at both ends of the battery mounting space along the height direction of the extension part, when the height direction of the extension part is set to be consistent with the height direction of the vehicle and the battery is installed in the battery mounting space, the battery mounting bracket will not occupy the space of the battery in the height direction of the vehicle, which is beneficial to increase the size of the battery in the height direction of the vehicle, increase the size energy density of the battery, and ensure the battery's height above the ground, thereby ensuring the vehicle's passability.

[0095] Moreover, the battery mounting frame is provided with a battery mounting structure for mounting the battery in the battery mounting space, so that there is no need to disassemble the battery mounting frame into two parts, and the battery and the battery mounting structure can be directly connected and separated to achieve rapid battery replacement, thereby improving the battery replacement efficiency. In addition, since the battery mounting space is connected along the height direction of the extension part, there is no battery mounting frame blocking the battery on both sides of the vehicle height direction, so that the battery can be directly loaded into the battery mounting space from bottom to top and connected to the battery mounting structure, which is conducive to improving the convenience of battery replacement.

[0096] In addition, the battery mounting space is set to be through along the height direction of the extension part, so that there is no battery mounting frame blocking the battery on both sides in the height direction of the vehicle, which is beneficial to the heat dissipation of the battery, and is beneficial to reducing the weight of the battery mounting frame and reducing the vehicle-mounted burden of the battery mounting frame. Moreover, the part of the battery stored in the battery mounting space can be protected by the two extension parts that define the battery mounting space, thereby improving the working reliability of the battery.

[0097] In short, against the background of increasing demands for battery layout space and vehicle range on a single battery swap, the battery mounting rack of the embodiment of the present application can expand the battery mounting space in the height direction of the vehicle, which is beneficial to improving the space utilization in the height direction of the vehicle while ensuring the height of the battery from the ground, thereby helping to increase the size energy density of the battery and increase the vehicle range on a single battery swap.

[0098] The battery disclosed in the embodiments of the present application can be used in an electrical device that uses the battery as a power source or in various energy storage systems that use the battery as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0099] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an embodiment of the present application.

[0100] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 30 is provided inside the vehicle 1000, and the battery 30 may be provided at the bottom, head or tail of the vehicle 1000. The battery 30 may be used to power the vehicle 1000, for example, the battery 30 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 40 and a motor 50, and the controller 40 is used to control the battery 30 to power the motor 50, for example, for starting, navigating and driving the vehicle 1000.

[0101] In some embodiments of the present application, the battery 30 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0102] Please refer to Figure 2 , Figure 2 The exploded view of the battery 30 provided in some embodiments of the present application. The battery 30 includes a box 301 and a battery cell 302, and the battery cell 302 is accommodated in the box 301. The box 301 is used to provide a storage space for the battery cell 302, and the box 301 can adopt a variety of structures. In some embodiments, refer to Figure 2 The box body 301 may include a first part 3011 and a second part 3012, the first part 3011 and the second part 3012 cover each other, and the first part 3011 and the second part 3012 jointly define a storage space for accommodating the battery cell 302. The second part 3012 may be a hollow structure with an open end, and the first part 3011 may be a plate-like structure, and the first part 3011 covers the open end of the second part 3012, so that the first part 3011 and the second part 3012 jointly define a storage space; the first part 3011 and the second part 3012 may also be hollow structures with an open end on one side, and the open end of the first part 3011 covers the open end of the second part 3012. Of course, the box body 301 formed by the first part 3011 and the second part 3012 may be in various shapes, such as a cylinder, a cuboid, etc.

[0103] The battery 30 may include a battery cell 302. There may be multiple battery cells 302. Multiple battery cells 302 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that multiple battery cells 302 are connected in series and in parallel. Multiple battery cells 302 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by multiple battery cells 302 is accommodated in the box 301. Of course, the battery 30 may also be a battery module formed by multiple battery cells 302 connected in series, in parallel, or in a mixed connection, and then multiple battery modules 30 are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 301. The battery 30 may also include other structures. For example, the battery 30 may also include a busbar for realizing electrical connection between multiple battery cells 302.

[0104] In the present application, the battery cell 302 may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc., and the embodiments of the present application do not limit this. The battery cell 302 may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. The battery cell 302 is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0105] The battery cell 302 includes a housing, an electrode assembly and an electrolyte, and the housing is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell 302 mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The material of the separator is not limited, for example, it can be polypropylene or polyethylene.

[0106] The positive electrode sheet can generally include a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is directly or indirectly coated on the positive electrode current collector, the positive electrode current collector not coated with the positive electrode active material layer protrudes from the positive electrode current collector coated with the positive electrode active material layer, and the positive electrode current collector not coated with the positive electrode active material layer serves as a positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode current collector can be aluminum, and the material of the positive electrode active material layer can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc.

[0107] The negative electrode sheet may generally include a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer is directly or indirectly coated on the negative electrode current collector, and the negative electrode current collector not coated with the negative electrode active material layer protrudes from the negative electrode current collector coated with the negative electrode active material layer, and the negative electrode current collector not coated with the negative electrode active material layer serves 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.

[0108] In order to ensure that a large current does not melt, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The electrode assembly can be a winding structure or a laminated structure, and the embodiments of the present application are not limited thereto.

[0109] like Figure 1 As shown, an embodiment of the present application provides a battery mounting rack 10 , and the battery mounting rack 10 of the embodiment of the present application is used to install a battery 30 to a frame 60 of a vehicle 1000 .

[0110] like Figure 3 and Figure 4 As shown, the battery mounting frame 10 includes a plurality of extension portions 2 arranged at intervals, a battery mounting space 4 penetrating along the height direction Z of the extension portions 2 is formed between two adjacent extension portions 2, and a battery mounting structure 3 for mounting a battery 30 in the battery mounting space 4 is provided on the battery mounting frame 10.

[0111] It is worth noting that the battery mounting frame 10 of the embodiment of the present application can be used for chassis-type battery swapping of the vehicle 1000. The chassis-type battery swapping (battery swapping under frame) refers to: a method of realizing vehicle energy replenishment by flexibly replacing the battery swapping battery system installed under the chassis of the whole vehicle. Among them, the swappable battery system refers to: the power battery system (referred to as battery 30 in this application) that is replaced as a whole during the battery swapping process of the vehicle 1000. Exemplarily, the battery swapping battery system generally includes: a power battery, a battery management system, a battery swapping electrical interface, a battery swapping cooling interface, and a battery swapping mechanical interface, etc., which can be charged and discharged in a non-vehicle state. The terms and definitions of the embodiments of the present application can refer to GB / T 19596 Electric Vehicle Terminology.

[0112] The phrase “a battery mounting frame 10 is provided with a battery mounting structure 3 for mounting a battery 30 in a battery mounting space 4” means that: a battery mounting frame 10 is provided with a battery mounting structure 3 to which a battery 30 can be connected. When the battery 30 is connected to the battery mounting structure 3, at least a portion of the battery 30 can be accommodated in the battery mounting space 4, presenting a mounted state. At this time, the portion of the battery 30 accommodated in the battery mounting space 4 can be protected by the two extensions 2 defining the battery mounting space 4, thereby improving the working reliability of the battery 30. When the battery mounting frame 10 includes a plurality of battery mounting spaces 4, problems such as collision and heat transfer between batteries 30 in two adjacent battery mounting spaces 4 can be improved. Of course, the battery mounting frame 10 can also include only one battery mounting space 4.

[0113] “The battery mounting space 4 is connected along the height direction Z of the extension part 2” means that the two ends of the extension part 2 in the height direction Z are open without any structural obstruction on the battery mounting frame 10, wherein the height direction Z may be perpendicular to the thickness direction of the extension part 2 (e.g. Figure 4 ) and the length direction of the extension 2 (eg, Figure 4 In this way, the space utilization of the battery 30 in the height direction Z of the extension part 2 can be improved, thereby increasing the size of the battery 30 in the height direction Z of the extension part 2, which is conducive to improving the size energy density of the battery 30.

[0114] The battery mounting structure 3 may be disposed on the extension portion 2, or the battery mounting structure 3 may not be disposed on the extension portion 2, which is not limited here. The distribution position, quantity and structural form of the battery mounting structure 4 may be flexibly designed to facilitate meeting the mounting strength requirements of the large-size battery 30. Among them, the structure of the battery mounting structure 3 is not limited, for example, it may include but is not limited to a mounting groove, or a mounting hole, or a mounting protrusion, or a mounting pin, or a mounting screw, etc., which is not limited here.

[0115] The arrangement direction of the plurality of extension portions 2 arranged at intervals is not limited. For example, the plurality of extension portions 2 are arranged along the thickness direction of the extension portion 2 (for example Figure 4 The extensions 2 are arranged in a first direction (X) as shown in the figure, but the thickness direction of the extension 2 can be set to be consistent with the width direction of the vehicle 1000, or the thickness direction of the extension 2 can also be set to be consistent with the length direction of the vehicle 1000, which is not limited here. In addition, the number of extensions 2 is not limited. For example, two extensions 2 can be provided, and a battery mounting space 4 is formed between the two extensions 2, or more extensions 2 can be provided to define multiple battery mounting spaces 4. When there are multiple battery mounting spaces 4, at least one battery mounting structure 3 can be provided for each battery mounting space 4, so that a battery 30 can be mounted in each battery mounting space 4.

[0116] Exemplarily, when the battery mounting bracket 10 is used to install the battery 30 on the vehicle 1000, the height direction Z of the extension portion 2 is consistent with the height direction of the vehicle 1000. Since the battery mounting space 4 is connected along the height direction Z of the extension portion 2, that is, both ends of the battery mounting space 4 along the height direction Z of the extension portion 2 do not have the structure of the battery mounting bracket 10. When the battery 30 is installed in the battery mounting space 4, the battery mounting bracket 10 and the battery mounting structure 3 thereon will not occupy the space of the battery 30 in the height direction of the vehicle, which is beneficial to increase the size of the battery 30 in the height direction of the vehicle, and increase the size energy density of the battery 30, thereby increasing the vehicle's range of a single battery replacement, and ensuring the height of the battery 30 from the ground, and ensuring the vehicle's passability.

[0117] Moreover, the battery mounting frame 10 is provided with a battery mounting structure 3 for mounting the battery 30 on the battery mounting space 4, so that there is no need to disassemble the battery mounting frame 10 into two parts, and the battery 30 can be directly connected and disassembled with the battery mounting structure 3 to achieve rapid battery replacement, thereby improving the battery replacement efficiency. In addition, since the battery mounting space 4 is connected along the height direction Z of the extension part 2, there is no battery mounting frame 10 blocking the battery 30 on both sides in the vehicle height direction, so that the battery 30 can be directly loaded into the battery mounting space 4 from bottom to top and connected to the battery mounting structure 3, which is conducive to improving the convenience of battery replacement.

[0118] In addition, the battery mounting space 4 is set to be through along the height direction Z of the extension part 2, so that there is no battery mounting frame 10 blocking the battery 30 on both sides in the vehicle height direction, which is beneficial to the heat dissipation of the battery 30, and is beneficial to reducing the weight of the battery mounting frame 10 and reducing the vehicle-mounted burden of the battery mounting frame 10. Moreover, the part of the battery 30 stored in the battery mounting space 4 can be protected by the two extension parts 2 that define the battery mounting space 4, thereby improving the working reliability of the battery 30.

[0119] In short, against the background of increasing demands for the layout space of the battery 30 and the vehicle's range after a single battery swap, the battery mounting bracket 10 of the embodiment of the present application can expand the mounting space of the battery 30 in the vehicle height direction, which is beneficial for improving the space utilization in the vehicle height direction while ensuring the height of the battery 30 from the ground, thereby helping to increase the size energy density of the battery 30 and increase the vehicle's range after a single battery swap.

[0120] In some embodiments, please refer to Figure 4 , the two extensions 2 defining the battery mounting space 4 are spaced apart in the first direction X and connected by the main body 1, the main body 1 is located on one side of the extension 2 in the second direction Y, and the first direction X and the second direction Y intersect in a plane perpendicular to the height direction Z of the extension 2. The intersection may be an acute angle, a right angle, or an obtuse angle.

[0121] Thus, two adjacent extension portions 2 can be connected via the main body portion 1 , so that the structure of the battery mounting frame 10 is simpler, easier to design, and convenient for welding or integral molding.

[0122] For example, when the first direction X is the length direction of the vehicle 1000 and the second direction Y is the width direction of the vehicle 1000, multiple extensions 2 are spaced apart and distributed along the length direction of the vehicle 1000, so that the space in the length direction of the vehicle 1000 can be fully utilized to arrange more extensions 2 to define a larger number of battery mounting spaces 4, thereby mounting a larger number of batteries 30, thereby increasing the height of the battery 30 while also increasing the number of mounted batteries 30, thereby improving the cruising range of the vehicle 1000 for a single battery replacement, reducing the number of battery replacements per unit mileage, and helping to reduce the space occupied by the battery 30 and the battery mounting frame 10 in the width direction of the vehicle 1000.

[0123] In some embodiments, please refer again to Figure 4 The two extension parts 2 that define the battery mounting space 4 are also connected by a reinforcement part 5, and the reinforcement part 5 and the main body part 1 are arranged on both sides of the extension part 2 in the second direction Y.

[0124] Thus, the two ends of the two extensions 2 defining the battery mounting space 4 in the second direction Y can be connected respectively through the main body 1 and the reinforcement 5. In this way, the structure around the battery mounting space 4 is formed into a ring shape, which has higher structural strength, higher mounting reliability for the battery 30, and can more comprehensively protect the battery 30 from the circumference, and the position of the battery mounting structure 3 can be flexibly selected.

[0125] In some embodiments, at least one of the main body 1 , the extension portion 2 , and the reinforcement portion 5 is provided with a battery mounting structure 3 .

[0126] Among them, "at least one of the main body 1, the extension part 2 and the reinforcement part 5 is provided with a battery mounting structure 3" includes but is not limited to the main body 1 being provided with a battery mounting structure 3; or the extension part 2 being provided with a battery mounting structure 3; or the reinforcement part 5 being provided with a battery mounting structure 3; or the battery mounting structure 3 can be provided on any two or more of the main body 1, the extension part 2 and the reinforcement part 5.

[0127] In this way, the setting position of the battery mounting structure 3 is more flexible, which makes it easier to set the position of the battery mounting structure 3 according to the actual mounting requirements of the battery 30, thereby reducing the difficulty of arranging the battery mounting structure 3 and improving the mounting reliability and convenience of the battery 30.

[0128] Exemplarily, when the battery mounting rack 10 is used to mount the battery 30 on the vehicle 1000, the first direction X is set as the length direction of the vehicle 1000, and the battery mounting structure 3 is set on the extension part 2. At this time, the battery mounting structure 3 and the extension part 2 will not occupy the space of the battery 30 in the width direction of the vehicle 1000, so that the size of the battery mounting space 4 in the width direction of the vehicle 1000 can be increased, and the size of the battery 30 in the width direction of the vehicle 1000 can be increased, which is conducive to improving the size energy density of the battery 30. Moreover, setting the first direction X as the length direction of the vehicle 1000 is also conducive to increasing the size or number of the battery mounting space 4 in the length direction of the vehicle 1000 due to the relatively large length space of the vehicle 1000, so as to further improve the size energy density or number of the battery 30.

[0129] In some embodiments, the battery mounting structure 3 is disposed on a side of the extension portion 2 facing the battery mounting space 4 .

[0130] Thus, by arranging the battery mounting structure 3 on the side of the extension portion 2 facing the battery mounting space 4, the battery mounting structure 3 corresponds to the battery mounting space 4 facing which battery mounting structure 3 faces, and is used to mount the battery 30 on the battery mounting space 4 facing which battery mounting structure 3 faces, so that the corresponding relationship between the battery mounting structure 3 and the battery mounting space 4 can be clearly defined, and the battery 30 can be extended into the battery mounting space 4 and connected to the battery mounting structure 3 facing the battery mounting space 4, so that the mounting of the battery 30 can be realized very conveniently. Moreover, when there are multiple battery mounting spaces 4, the battery mounting structures 3 corresponding to different battery mounting spaces 4 are arranged at different positions and will not interfere with each other, so that the battery mounting structures 3 corresponding to each battery mounting space 4 can have a relatively sufficient space for flexible arrangement, so that the battery mounting structure 3 can mount the battery 30 more easily and reliably.

[0131] In some embodiments, please refer to Figure 4 and Figure 5 The extension portion 2 includes a mounting edge 21 protruding toward the battery mounting space 4 , and the battery mounting structure 3 is located on the mounting edge 21 .

[0132] Therefore, by setting the mounting edge 21, it is helpful to reduce the difficulty of setting the battery mounting structure 3, and it is easy to realize that the battery mounting structure 3 is located on the side of the extension part 2 facing the battery mounting space 4. Moreover, the mounting edge 21 can play a certain direct or indirect supporting role on the battery 30 to enhance the mounting stability of the battery 30.

[0133] In some embodiments, please refer to Figure 4 There are multiple battery mounting structures 3 and at least two of them are spaced apart along the second direction Y.

[0134] This helps to make full use of the space in the second direction Y of the extension portion 2 and arrange a greater number of battery mounting structures 3, thereby helping to enhance the mounting stability of the battery 30, or helping to increase the number of batteries 30 mounted in the battery mounting space 4.

[0135] In some embodiments, please refer to Figure 4 The extension portion 2 is plate-shaped, and the thickness direction of the extension portion 2 is the first direction X, and the length direction of the extension portion 2 is the second direction Y.

[0136] Therefore, by setting the extension part 2 to be plate-shaped and defining the first direction X and the second direction Y as above, the battery mounting space 4 can be located on one side or both sides in the thickness direction of the extension part 2, so that the length structural characteristics of the extension part 2 can be fully utilized to define the battery mounting space 4, so that the space occupied by the extension part 2 is smaller, and the defined battery mounting space 4 is larger.

[0137] In addition, when the number of extension portions 2 arranged makes the battery mounting frame 10 define a plurality of 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 the thickness of the extension portion 2, so that the gap between two adjacent battery mounting spaces 4 is smaller, so that more battery mounting spaces 4 can be set in the thickness direction of the extension portion 2, which is beneficial to further improve space utilization.

[0138] For example, when the thickness direction of the extension portion 2 is the same as the length direction of the vehicle 1000, and the length direction of the extension portion 2 is the same as the width direction of the vehicle 1000, the mounting space of the battery 30 can be expanded in the length direction and width direction of the vehicle 1000, thereby increasing the cruising range of the vehicle 1000 per single battery replacement.

[0139] In some embodiments, please refer to Figure 4 The height of the extension portion 2 tends to decrease in the second direction Y away from the main body portion 1 .

[0140] It is worth explaining that “showing a decreasing trend” can mean a gradual decrease or a step-by-step decrease.

[0141] Therefore, by setting the height of the extension portion 2 to decrease in the direction away from the main body portion 1 in the second direction Y, the height of the extension portion 2 in the region away from the main body portion 1 is smaller.

[0142] That is to say, the height of the end portion of the extension portion 2 connected to the main portion 1 is relatively large, while the height of the end portion of the extension portion 2 away from the main portion 1 is relatively small, thereby enhancing the connection strength between the extension portion 2 and the main portion 1, improving the reliability of the extension portion 2 for mounting the battery 30, and reducing the weight of the extension portion 2, thereby reducing the load of the vehicle 1000.

[0143] In some embodiments, please refer to Figure 4 The battery mounting structure 3 is arranged at the lower edge of the extension part 2 in the height direction Z, the lower edge of the extension part 2 extends along the horizontal line, and the upper edge of the extension part 2 tends to decrease in the direction away from the main body 1. Here, the two ends of the extension part 2 in the height direction Z are defined as the upper and lower ends. When the height direction Z of the extension part 2 is consistent with the height direction of the vehicle 1000, the two ends of the extension part 2 in the height direction Z are also the upper and lower ends in the gravity direction.

[0144] Therefore, by arranging the battery mounting structure 3 at the lower edge of the extension portion 2 in the height direction Z, and the lower edge of the extension portion 2 extending along the horizontal line, it is beneficial for the battery mounting structure 3 to be located at the same height and at a lower height, which is beneficial for the loading connection between the battery mounting structure 3 and the battery 30, and is convenient for reducing the difficulty of mounting the battery 30, and is beneficial for saving space for battery replacement operations, and is beneficial for increasing the size and energy density of the battery.

[0145] For example, when a tool is used to extend upward to the position of the battery mounting structure 3 to mount and connect the battery mounting structure 3 with the battery 30, the tool is raised to a position lower than the extension part 2, so that the tool can be raised to a lower height, and the tool does not need to be inserted 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 insertion requirement, thereby reducing space waste and further increasing the size of the battery 30 by saving space, thereby further improving the size energy density of the battery 30. This is convenient for reducing the difficulty of mounting the battery 30.

[0146] For example, in combination Figure 4 and Figure 5The lower edge of the extension part 2 is provided with a mounting edge 21. When the battery mounting structure 3 is located at the lower edge of the extension part 2, it can be arranged on the mounting edge 21. At this time, the lower edge of the extension part 2 can be set to extend horizontally, and the upper edge of the extension part 2 has a decreasing trend along the direction away from the main body 1. It is worth noting that "decreasing trend" can be a gradual decrease or a stepwise decrease. Therefore, it is beneficial for the battery mounting structures 3 to be located at the same level, thereby facilitating the mounting operation of the battery 30.

[0147] At the same time, the upper edge of the extension portion 2 tends to decrease in the direction away from the main body portion 1, so that the height of the end of the extension portion 2 connected to the main body portion 1 is relatively large, while the height of the end of the extension portion 2 away from the main body portion 1 is relatively small, thereby enhancing the connection strength between the extension portion 2 and the main body portion 1, improving the reliability of the extension portion 2 for mounting the battery 30, and reducing the weight of the extension portion 2, thereby reducing the load of the vehicle 1000.

[0148] In some embodiments, please refer to Figure 5 The extension portion 2 is provided with reinforcing ribs 22 and / or a weight-reducing structure 23 .

[0149] Therefore, by providing the reinforcing ribs 22 , the structural strength of the extension portion 2 is enhanced, the deformation problem of the extension portion 2 due to stress is improved, and the reliability of the extension portion 2 for mounting the battery 30 is improved.

[0150] The reinforcing ribs 22 may include but are not limited to strip-shaped reinforcing protrusions, or partially thickened extension portions 2, and the structural form of the reinforcing ribs 22 is not limited, for example, it may be a straight line, a curve, or a cross, etc. This is not limited here.

[0151] For example, when a battery 30 is mounted on the battery mounting structure 3 of the extension portion 2, the position of the battery mounting structure 3 of the extension portion 2 is subjected to concentrated force and is prone to deformation and damage. Therefore, at least part of the reinforcing ribs 22 can be arranged corresponding to the battery mounting structure 3, thereby reducing the number of reinforcing ribs 22 and improving the structural strength of the extension portion 2. This improves the reliability of the extension portion 2 for mounting the battery 30.

[0152] For example, when a plurality of battery mounting structures 3 are provided on the extension portion 2, at least part of the reinforcing ribs 22 are arranged between two adjacent battery mounting structures 3. When a battery 30 is mounted on the battery mounting structure 3 on the extension portion 2, the position of the battery mounting structure 3 of the extension portion 2 is subjected to concentrated force and is easily deformed and damaged. When at least part of the reinforcing ribs 22 are arranged between two adjacent battery mounting structures 3, the structural strength of the extension portion 2 between the two adjacent battery mounting structures 3 can be enhanced, the problem of fracture caused by stress concentration between the two adjacent battery mounting structures 3 can be improved, and the mounting reliability of the extension portion 2 for the battery 30 can be improved.

[0153] The weight-reducing structure 23 is provided to reduce the weight of the extension part 2, thereby facilitating a lightweight design of the extension part 2. The "weight-reducing structure 23" may include but is not limited to a weight-reducing hole, a weight-reducing groove, or a thinning treatment, etc., which are not limited here.

[0154] In addition, when the extension part 2 is provided with reinforcing ribs 22 and weight-reducing structures 23 at the same time, the weight of the extension part 2 increases due to the reinforcing ribs 22, and the weight-reducing structures 23 can reduce the weight, thus achieving both reliability and lightness of the extension part 2.

[0155] In some embodiments, please refer to Figure 4 and Figure 6 The battery mounting frame 10 includes a plurality of battery mounting spaces 4 arranged at intervals along a first direction X.

[0156] Therefore, by setting up the battery mounting frame 10 to include multiple battery mounting spaces 4 arranged at intervals along the first direction X, it is beneficial to flexibly set the number of battery mounting spaces 4 by increasing or decreasing the number of extension parts 2, so that the battery mounting frame 10 has high expandability, and the battery 30 can be installed in the battery mounting space 4 through the battery mounting structure 3, so that the battery mounting frame 10 can have the function of mounting multiple batteries 30 in the first direction X, that is, realize the multi-pack mounting function, thereby improving the cruising range of the vehicle 1000 after a single battery replacement and reducing the number of battery replacements per unit mileage.

[0157] For example, when the battery mounting rack 10 is installed on the vehicle frame 60, the first direction X can be set to the length direction of the vehicle. Since the battery mounting rack 10 defines a plurality of battery mounting spaces 4 arranged along the first direction X, the battery mounting rack 10 has the function of mounting a plurality of batteries 30 along the length direction of the vehicle. In this way, the number of batteries 30 that can be arranged on the vehicle 1000 can be increased, which is beneficial to improving the cruising range of the vehicle 1000 after a single battery replacement and reducing the number of battery replacements per unit mileage.

[0158] For example, please refer again to Figure 4 The battery mounting frame 10 includes four extension portions 2 spaced apart and distributed along a first direction X, and the four extension portions 2 define three battery mounting spaces 4, each battery mounting space 4 can mount at least one battery 30, and when the battery 30 is mounted on the battery mounting structure 3, at least part of the battery 30 is located in the battery mounting space 4. At this time, the two adjacent extension portions 2 can serve as the outer wall of the battery mounting space 4 to protect the battery 30 to a certain extent, so as to reduce damage to the battery 30 and improve the reliability of the battery 30 in providing electrical energy to the vehicle 1000.

[0159] Of course, the number of battery mounting spaces 4 in the above description is only for illustration. For example, the battery mounting spaces 4 arranged in the first direction X of the battery mounting frame 10 may also be provided with two, three, five, or more, etc., which can be set according to the specific needs of the vehicle 1000.

[0160] In addition, the number of extensions 2 may not be just one more than the number of battery mounting spaces 4, for example, three battery mounting spaces 4 may also be defined by five or six extensions 2. However, it is understood that when the number of extensions 2 may not be just one more than the number of battery mounting spaces 4, the number of extensions 2 used may be saved, thereby reducing the cost and weight of the battery mounting rack 10.

[0161] In some embodiments, please refer to Figure 4 At least one extension portion 2 is a common extension portion 2a, and two battery mounting spaces 4 spaced apart along the first direction X are separated by the common extension portion 2a.

[0162] It is worth noting that "at least one extension portion 2 is a common extension portion 2a" means that among the multiple extension portions 2 arranged at intervals along the first direction X, at least one extension portion 2 other than the two extension portions 2 on both sides is a common extension portion 2a. For example, when four extension portions 2 are arranged at intervals along the first direction X, at least one extension portion 2 among the two middle extension portions 2 is a common extension portion 2a. Among them, two battery mounting spaces 4 arranged adjacent to each other along the first direction X are separated by a common extension portion 2a.

[0163] Thus, when the number of battery mounting spaces 4 spaced apart along the first direction X is fixed, the number of extensions 2 spaced apart along the first direction X can be reduced, thereby facilitating cost reduction and reducing the load of the vehicle 1000. For example, in the minimum case, the number of extensions 2 spaced apart along the first direction X can be one more than the number of battery mounting spaces 4, that is, only one extension 2 is provided between two adjacent battery mounting spaces 4 along the first direction X, thereby facilitating cost reduction and reducing the load of the vehicle 1000.

[0164] However, the present application is not limited to this. For example, two extension portions 2 may be arranged between two adjacent battery mounting spaces 4 along the first direction X. In this way, each extension portion 2 may only correspond to the battery mounting space 4 on one side to arrange the battery mounting structure 3, thereby reducing the bearing force of each extension portion 2 on the battery 30 and improving the mounting reliability of the battery 30.

[0165] In some embodiments, the battery mounting structures 3 are respectively arranged on both sides of the battery mounting space 4 facing both sides of the common extension portion 2a.

[0166] Therefore, by arranging the battery mounting structures 3 on both sides of the battery mounting spaces 4 on both sides of the common extension portion 2a, the difficulty of arranging the battery mounting structures 3 is reduced.

[0167] In some embodiments, the orthographic projections of the battery mounting structures 3 on both sides of the common extension portion 2a on the projection plane perpendicular to the first direction X are misaligned. For example, the distance from any battery mounting structure 3 on one side of the common extension portion 2a to the main body 1 in the second direction Y is different from the distance from any battery mounting structure 3 on the other side of the common extension portion 2a to the main body 1 in the second direction Y.

[0168] Therefore, by setting the battery mounting structure 3 on both sides of the common extension part 2a to be misaligned in the projection on the projection plane perpendicular to the first direction X, the force distribution of the common extension part 2a is more reasonable. When the batteries 30 in the battery mounting space 4 on both sides of the common extension part 2a are respectively connected to the battery mounting structure 3 on both sides of the common extension part 2a, stress concentration can be reduced to reduce deformation, fracture and other problems of the common extension part 2a, thereby improving the service life of the common extension part 2a and improving the mounting reliability of the battery 30.

[0169] In some embodiments, please refer again to Figure 4 A battery mounting structure 3 is provided on the extension portion 2 on both sides of the battery mounting space 4 in the first direction X.

[0170] Thus, both sides of the battery 30 mounted in the battery mounting space 4 can be respectively connected to the battery mounting structures 3 of the extension parts 2 on both sides of the battery mounting space 4 in the first direction X, so that the extension parts 2 on both sides of the battery mounting space 4 in the first direction X can both play the role of supporting the battery 30 in the battery mounting space 4, and the battery mounting structures 3 on both sides can disperse the force to reduce the deformation, fracture and other problems of the extension part 2 caused by stress concentration, thereby improving the service life of the extension part 2 and improving the mounting reliability of the battery 30.

[0171] In some embodiments, the battery mounting structures 3 on both sides of the battery mounting space 4 in the first direction X are misaligned in their orthographic projections on a projection plane perpendicular to the first direction X. For example, the distance from any battery mounting structure 3 on one side of the battery mounting space 4 to the main body 1 in the second direction Y is different from the distance from any battery mounting structure 3 on the other side of the battery mounting space 4 to the main body 1 in the second direction Y.

[0172] Therefore, by setting the battery mounting structures 3 on both sides of the battery mounting space 4 to be staggered in the projection on the projection plane perpendicular to the first direction X, it is further beneficial to disperse the force on the battery mounting structures 3 on both sides, and further improve the deformation, fracture and other problems of the extension part 2 caused by stress concentration.

[0173] In addition, when the common extension portion 2a has a battery mounting structure 3 on both sides in the first direction X, and the battery mounting structures 3 on both sides of the common extension portion 2a in the first direction X are misaligned in their orthographic projections on the projection plane perpendicular to the first direction X, and the battery mounting structures 3 on both sides of the battery mounting space 4 in the first direction X are misaligned in their orthographic projections on the projection plane perpendicular to the first direction X, multiple extension portions 2 can be constructed as the same structure, so as to simplify the structure, facilitate processing, reduce costs, and improve assembly efficiency.

[0174] In some embodiments, please refer again to Figure 4 , a plurality of extension portions 2 defining a plurality of battery mounting spaces 4 spaced apart along a first direction X are connected to the same main body portion 1 .

[0175] Thus, the same main body 1 can be used to connect multiple extensions 2 spaced apart along the first direction X, so as to reduce the difficulty of assembling the multiple extensions 2. For example, when the battery mounting rack 10 is mounted on the vehicle frame 60, for example, the main body 1 can be fixed to the vehicle frame 60, so that the multiple extensions 2 can reach the use position, so as to reduce the difficulty of using the battery mounting rack 10.

[0176] In some embodiments, please refer again to Figure 4 The main body 1 is connected to two sides of the main body 1 in the second direction Y with a plurality of extension portions 2 spaced apart along the first direction X.

[0177] Therefore, by arranging the two sides of the main body 1 in the second direction Y to be respectively connected to a plurality of extension parts 2 spaced apart along the first direction X, the two sides of the main body 1 in the second direction Y have the function of accommodating and protecting the battery 30, and when the extension part 2 has a battery mounting structure 3, the two sides of the main body 1 in the second direction Y also have the ability to mount the battery 30, and the size of the battery mounting frame 10 in the second direction Y can be fully utilized to increase the number of batteries 30 that can be mounted on the battery mounting frame 10, so as to fully utilize the space of the battery mounting frame 10 in the second direction Y, and it is beneficial to improve the cruising range of the vehicle 1000 after a single battery replacement.

[0178] For example, when the battery mounting bracket 10 is installed on the vehicle frame 60, the main body 1 can be fixed to the vehicle beam 20 of the vehicle frame 60, the first direction X is the length direction of the vehicle beam 20, and the second direction Y is the width direction of the vehicle beam 20, so that the batteries 30 can be distributed on both sides of the vehicle beam 20, that is, the battery mounting bracket 10 has a double-sided mounting space form.

[0179] In some embodiments, Figure 3 and Figure 4As shown, the extension portions 2 on both sides of the main body 1 are arranged one by one along the second direction Y, and the length extension directions of the two corresponding extension portions 2 are the same, and the orthographic projections of the two extension portions 2 along the length extension directions of the extension portions 2 coincide.

[0180] As a result, the battery mounting spaces 4 correspondingly defined by the extensions 2 on both sides of the main body 1 in the second direction Y are of the same size and corresponding in position, so that when the battery mounting rack 10 is installed with a large-sized and relatively regular-shaped battery 30, the two side portions of the battery 30 can respectively cooperate with the two battery mounting spaces 4 correspondingly arranged on both sides of the main body 1 in the second direction Y, so that the two battery mounting spaces 4 correspondingly arranged on both sides of the main body 1 can be used together to install a large-sized battery 30, which is conducive to improving the energy density of the installed battery 30. And when the extension 2 has a battery mounting structure 3, the two extensions 2 corresponding in position along the second direction Y can respectively play a bearing role on the two side portions of the large-sized battery 30, so as to improve the force balance and mounting stability of the battery 30.

[0181] In some embodiments, please refer to Figure 3 and Figure 4 The main body 1 includes a beam avoidance groove 13 , and the beam avoidance groove 13 has an opening that passes through along a first direction X. For example, the first direction X can be set to be consistent with the length direction of the beam 20 .

[0182] Therefore, by setting the vehicle beam avoidance groove 13 with an opening that passes through along the first direction X, a part of the vehicle beam 20 can extend into the vehicle beam avoidance groove 13, so that the vehicle beam avoidance groove 13 can avoid the vehicle beam 20, avoid interference between the battery mounting frame 10 and the vehicle beam 20, improve the compactness of the cooperation between the battery mounting frame 10 and the vehicle beam 20, and facilitate the use of the space near the vehicle beam 20 to set the battery 30, thereby facilitating the increase of the size and dimensional energy density of the battery 30.

[0183] In some embodiments, please refer to Figure 4 and Figure 5 The main body 1 includes a first main body wall 11 and two second main body walls 12. The two second main body walls 12 are arranged along the first direction X and are respectively connected to the two ends of the first main body wall 11 along the second direction Y to form a beam avoidance groove 13 with an open top between the two second main body walls 12 and the first main body wall 11.

[0184] Therefore, by arranging two second main body walls 12 along the first direction X (that is, the length direction of the second main body walls 12 is consistent with the first direction X) and the two second main body walls 12 are respectively connected to the two ends of the first main body wall 11 along the second direction Y, it is convenient to limit the extension direction of the beam avoidance groove 13 to extend along the first direction X, and by forming a beam avoidance groove 13 with an open top between the two second main body walls 12 and the first main body wall 11, it is convenient to reduce the design and molding difficulty of the beam avoidance groove 13.

[0185] Furthermore, since the top of the beam avoidance groove 13 is open, the main body 1 can be pushed upward from the bottom to the top, so that the beam 20 enters the beam avoidance groove 13, which is conducive to reducing the difficulty of assembling the battery mounting frame 10 to the frame 60. For the frame 60 that has been assembled, the battery mounting frame 10 can be subsequently installed, so that the battery mounting frame 10 can be used in a variety of vehicle models. The present application is not limited to this. For example, in other embodiments of the present application, the beam avoidance groove 13 can also be set to be open at the bottom. In this case, the battery mounting frame 10 and the frame 60 can be assembled simultaneously during the process of assembling the frame 60.

[0186] In some embodiments, please refer to Figure 4 and Figure 5 , the extension part 2 is connected to the second main body wall 12. For example, the extension part 2 is connected to the side of the second main body wall 12 in the second direction Y away from the first main body wall 11.

[0187] Thus, the extension part 2 is connected to the second main body wall 12, which can avoid the interference between the extension part 2 and the vehicle beam 20 while increasing the length of the extension part 2 in the second direction Y, thereby facilitating the expansion of the battery mounting space 4 in the second direction Y. It also facilitates the connection between the extension part 2 and the main body 1.

[0188] Specifically, the connection method between the extension part 2 and the second main body wall 12 is not limited, for example, it can be welding or integral molding, and the connection method between the first main body wall 11 and the second main body wall 12 is not limited, for example, it can be welding or integral molding.

[0189] In some embodiments, please refer to Figure 4 and Figure 5 At least one of the main body portion 1 and the extension portion 2 has a vehicle beam connection structure 14 .

[0190] For example, the beam connection structure 14 can be provided on the main body 1, or the beam connection structure 14 can be provided on the extension part 2, or the beam connection structure 14 can be provided on both the main body 1 and the extension part 2. The specific structure of the beam connection structure 14 is not limited, for example, it can be a threaded hole, a connection hole, a buckle structure, etc.

[0191] In this way, since the main body 1 cooperates with the beam 20 through the beam avoidance groove 13, the main body 1 and the extension part 2 can both have a portion close to the beam 20. In this way, by setting the beam connection structure 14 connected to the beam 20, it is easy to install the battery mounting frame 10 to the frame 60.

[0192] In some embodiments, at least one of a heat insulation structure, a heat dissipation structure, and a buffer structure is provided on a side of the extension portion 2 facing the battery mounting space 4 .

[0193] In the above technical solution, a heat-insulating structure is provided to insulate the battery 30 and improve the heat transfer effect between two adjacent batteries 30. The heat-insulating structure includes but is not limited to heat-insulating cotton, heat-insulating film, or other heat-insulating structures, which are not limited here.

[0194] By providing a heat dissipation structure, the battery 30 is cooled, thereby improving the overheating of the battery 30 and reducing the risk of thermal runaway of the battery 30. The heat dissipation structure includes but is not limited to a radiator, a cooler, a fan or other heat dissipation structures, which are not limited here.

[0195] By providing a buffer structure, the battery 30 can be buffered, thereby improving the rigid contact between the battery 30 and the buffer part, so as to protect the battery 30 and extend the service life of the battery 30. The buffer structure includes but is not limited to sponges, rubber parts, elastic parts and other buffer structures, which are not limited here.

[0196] Second, please refer to Figure 3 and Figure 4 The present application provides a frame assembly 100, which includes a frame 60 and a battery mounting frame 10 as in any of the above embodiments, the battery mounting frame 10 is used to install the battery 30 to the frame 60, the height direction Z of the extension portion 2 is the height direction of the frame 60, and the height direction of the frame 60 is the height direction of the vehicle 1000.

[0197] That is, the battery mounting rack 10 is installed on the vehicle frame 60 , and then the battery 30 is connected to the battery mounting structure 3 to realize the assembly of the battery 30 to the battery mounting rack 10 , so that the battery mounting rack 10 can be used to install the battery 30 on the vehicle frame 60 .

[0198] Therefore, when the battery 30 is installed on the frame 60 through the battery mounting rack 10, the battery mounting space 4 of the battery 30 in the height direction of the frame 60 can be expanded, so as to facilitate mounting the battery 30 with a larger height dimension on the battery mounting rack 10, thereby improving the cruising range of the vehicle 1000 after a single battery replacement.

[0199] In some embodiments, please refer to Figure 3and Figure 4 The battery mounting frame 10 is disposed at the bottom of the vehicle frame 60 (i.e., located at the bottom of the vehicle 1000), and the vehicle frame 60 includes a vehicle beam 20, and at least one side of the vehicle beam 20 in the width direction is provided with an extension portion 2, and at least a portion of the extension portion 2 is higher than the bottom surface of the vehicle beam 20 in the height direction of the vehicle frame 60. In the embodiment of the present application, the length direction of the vehicle frame 60, the length direction of the vehicle 1000, and the length direction of the vehicle beam 20 are all consistent, and the width direction of the vehicle frame 60, the width direction of the vehicle 1000, and the width direction of the vehicle beam 20 are all consistent.

[0200] As a result, the battery mounting space 4 is not completely lower than the vehicle beam 20, but is at least partially higher than the bottom surface of the vehicle beam 20 and is located on at least one side in the width direction of the vehicle beam 20, so that the bottom space of the frame 60 can be fully utilized to arrange the extension part 2 and the battery mounting space 4, so as to facilitate mounting a larger battery 30 on the battery mounting frame 10, thereby improving the cruising range of the vehicle 1000 after a single battery replacement.

[0201] The vehicle beam 20 refers to an intermediate beam located at the bottom of the vehicle 1000 and extending along the length direction of the vehicle 1000, also known as a vehicle bottom beam. It is worth noting that the specific structure of the vehicle beam 20 according to the embodiment of the present application is not limited, for example, Figure 3 and Figure 4 , may include a lengthwise direction of the vehicle 1000 (e.g. Figure 4 The longitudinal beams 201 extending in the first direction X) and along the width direction of the vehicle 1000 (eg Figure 4 At least one cross beam 202 extending in a second direction Y) as shown in FIG. 1 , two longitudinal beams 201 are arranged at intervals along the width direction of the vehicle 1000 , and the cross beam 202 is connected between the two longitudinal beams 201 .

[0202] In some embodiments, please refer to Figure 3 and Figure 4 , a plurality of extensions 2 are provided on both sides of the width direction of the beam 20, and a plurality of battery mounting spaces 4 are respectively provided on both sides of the width direction of the beam 20 and arranged along the length direction of the beam 20. Thus, the battery mounting frame 10 can make more full use of the space on both sides of the width of the beam 20, thereby installing more batteries 30, and further improving the cruising range of the vehicle 1000 per single battery replacement.

[0203] In addition, it is worth noting that the battery mounting bracket 10 can be connected to the vehicle beam 20 , but is not limited to being connected to the vehicle beam 20 , and can also be connected to other components of the vehicle frame 60 , for example.

[0204] In a third aspect, the present application provides a vehicle 1000, which includes a battery 30 and a frame assembly 100 of any of the above embodiments, in combination with Figure 3 and Figure 4 , at least a portion of the battery 30 is accommodated in the battery mounting space 4.

[0205] Therefore, since the battery mounting space 4 is connected along the height direction of the vehicle 1000, when at least part of the battery 30 is accommodated in the battery mounting space 4, the height of the battery 30 can be increased while ensuring the height of the battery 30 from the ground, thereby improving the energy density of the battery 30 and increasing the cruising range of the vehicle 1000 after a single battery replacement.

[0206] In some embodiments, please refer to Figure 7 and Figure 8 The battery 30 includes a battery upper portion 30a and a battery lower portion 30b. The battery upper portion 30a is accommodated in the battery mounting space 4. The battery 30 is provided with a mounting structure 30c at a position between the battery upper portion 30a and the battery lower portion 30b. The mounting structure 30c is detachably connected to the battery mounting structure 3.

[0207] Therefore, when the battery 30 is mounted on the battery mounting frame 10, the upper part 30a of the battery can extend into the battery mounting space 4, and the extension part 2 can be used to protect the upper part 30a of the battery to reduce the risk of damage to the battery 30, which is conducive to extending the service life of the battery 30. At the same time, the height of the extension part 2 can be less 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 frame 10. Moreover, the mounting structure 30c is set at a position between the upper part 30a of the battery and the lower part 30b of the battery, so that it is possible for the battery mounting structure 3 to be located at the lower edge of the extension part 2, which is conducive to the battery replacement operation as described above. At the same time, the mounting structure 30c is detachably connected to the battery mounting structure 3, which is convenient for reducing the difficulty of replacing the battery 30 and improving the efficiency of battery replacement.

[0208] The connection method between the installation structure 30c and the battery mounting structure 3 includes but is not limited to: bolt connection, snap connection, plug connection, magnetic attraction, etc.

[0209] In some embodiments, please refer to Figure 7 and Figure 8 In the spacing direction of the extension portion 2, that is, the spacing direction of two adjacent extension portions 2 (for example, the first direction X), the size of the upper battery portion 30a is smaller than the size of the lower battery portion 30b, so as to form a step surface 30d between the upper battery portion 30a and the lower battery portion 30b, and the step surface 30d stops at the bottom of the extension portion 2, so that at least part of the upper battery portion 30a extends into the battery mounting space 4, and the lower battery portion 30b is located outside the battery mounting space 4.

[0210] It is worth noting that the step surface 30d stops at the bottom of the extension part 2 in a broad sense, that is, the step surface 30d and the extension part 2 can be directly in contact to achieve the stop effect, or can be indirectly in contact to achieve the stop effect. For example, the battery mounting structure 3 can be set at the lower position of the extension part 2, and the mounting structure 30c can be set on the step surface 30d. When the mounting structure 30c is connected with the battery mounting structure 3, the step surface 30d stops at the bottom of the extension part 2.

[0211] Therefore, when the battery 30 is actually installed, when the upper portion 30a of the battery is extended from bottom to top into the battery mounting space 4, the bottom of the extension portion 2 and the stopper of the step surface 30d can be used to remind the battery 30 to be assembled in place, so as to avoid the problem that the battery 30 is excessively extended into the battery mounting space 4 and squeezed and hit the bottom of the vehicle, thereby protecting the battery 30. In addition, setting the size of the lower portion 30b of the battery to be larger than the size of the upper portion 30a of the battery can further increase the size of the battery 30 to a certain extent, thereby further improving the size energy density of the battery 30.

[0212] In some embodiments, please refer to Fig. 9 and Fig.10 The battery 30 includes two battery side portions 30e and a battery central portion 30f. In the width direction of the frame 60, the two battery side portions 30e are respectively located on both sides 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, so as to form a clearance groove 30g between the two battery side portions 30e and the battery central portion 30f, which runs through the length direction of the frame 60 and has an open top for avoiding the vehicle beam 20. At least one of the battery side portions 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3.

[0213] “At least one of the battery side portion 30e and the battery center portion 30f is detachably connected to the battery mounting structure 3” includes: the battery side portion 30e is detachably connected to the battery mounting structure 3, or the battery center portion 30f is detachably connected to the battery mounting structure 3, or the battery side portion 30e and the battery center portion 30f are respectively detachably connected to the corresponding battery mounting structure 3.

[0214] Among them, the battery side 30e can be detachably connected to the battery mounting structure 3 through the mounting structure 30c on the battery side 30e. The position of the mounting structure 30c on the battery side 30e is not limited, for example, it can be located in the middle, upper or lower part of the battery side 30e.

[0215] Among them, the battery central part 30f can be detachably connected to the battery mounting structure 3 through the mounting structure 30c on the battery central part 30f. The position of the mounting structure 30c on the battery central part 30f is not limited, for example, it can be located in the middle, upper or lower part of the battery central part 30f.

[0216] Among them, the connection methods of the battery side portion 30e and / or the battery central portion 30f with the battery mounting structure 3 through the mounting structure 30c include but are not limited to: connection by bolts, or snap connection, or plug-in connection, or magnetic attraction, etc.

[0217] Thus, the structure of the battery 30 is ingenious, and by avoiding the vehicle beam 20 to make full use of the space on both sides of the width of the vehicle beam 20, the overall size of the battery 30 can be enlarged to improve the size energy density of the battery 30, and at least one of the battery side portion 30e and the battery central portion 30f is detachably connected to the battery mounting structure 3, which is conducive to improving the design flexibility of the battery 30. Among them, when both battery side portions 30e are connected to the battery mounting structure 3, or when both the battery side portion 30e and the battery central portion 30f are connected to the battery mounting structure 3, the installation stability of the battery 30 can be improved.

[0218] For example Fig.10 As shown, at least a portion of the beam 20 is located in the clearance groove 30g and above the central portion 30f of the battery, and the two battery side portions 30e can be located on both sides of the width direction of the beam 20, respectively. In this way, the space on both sides of the width direction of the beam 20 can be fully utilized to arrange a battery 30 of a larger size.

[0219] It is worth noting that the shape of the battery 30 of the embodiment of the present application is not limited thereto, and for example, it may include only one battery side portion 30e, or include both a battery central portion 30f and a battery side portion 30e, etc.

[0220] In recent years, battery swapping has become an important way for commercial electric vehicles to supplement energy in some application scenarios such as logistics, docks, and mines, and the pace of battery swapping station construction has also begun to accelerate. In order to make battery swapping universal and interchangeable, battery swapping facilities such as battery swapping stations and charging equipment can be fully utilized to reduce resource waste.

[0221] This application proposes some embodiments of chassis-type battery replacement to improve the compatibility and interchangeability of battery replacement. However, the following embodiments are not limited to pure electric vehicles, and other forms of battery replacement vehicles can be used for reference.

[0222] In some embodiments, the operating voltage range of the battery replacement system is: 400V~750V.

[0223] In some embodiments, the flatness of the battery swap contact surface of the battery swap system is ≤4mm. Specifically, the contact interface between the battery swap system and the battery mounting frame should be a plane without convex structures, and the flatness should be less than 4mm.

[0224] In some embodiments, the dimensional tolerance of the battery replacement system is within ±10 mm.

[0225] In some embodiments, the weight M1 of the vehicle and the battery charge Q in the battery swap system satisfy: 0kg<M1≤1400kg, 100kWh≤Q≤200kWh; or 1400kg<M1≤2800kg, 200kWh<Q≤400kWh; or 2800kg<M1≤4200kg, 400kWh<Q≤600kWh; or 4200kg<M1≤5600kg, 600kWh<Q≤800kWh.

[0226] In some embodiments, Figure 11-Figure 12 As shown, the battery swap system should be replaced on the vehicle with the corresponding envelope space. The battery size in the battery swap system is as follows: Figure 13-14 Logo.

[0227] In some embodiments, reference Figure 11-Figure 14 , a safety gap L0 is reserved between the front and rear end surfaces of the battery swap system and the entire vehicle, L0 ≥ 50mm.

[0228] In some embodiments, reference Figure 11-Figure 14 The dimension L of the battery replacement system along the vehicle length direction shall meet the following requirements: 700mm≤L≤900mm; or 1500mm≤L≤1700mm; or 2300mm≤L≤2500mm; or 3100mm≤L≤3300mm.

[0229] In some embodiments, reference Figure 11-Figure 14 The dimension W of the battery replacement system along the vehicle width direction satisfies: 2300mm≤W≤2550mm.

[0230] In some embodiments, reference Figure 11-Figure 14 The total height H of the battery replacement system satisfies: H≤680mm.

[0231] In some embodiments, reference Figure 11-Figure 14 The length dimension L1 of the upper boss of the battery replacement system (such as the upper part 30a of the battery) satisfies: 600≤L1≤700.

[0232] In some embodiments, reference Figure 11-Figure 14 The width dimension W1 of the bosses on both sides of the upper layer of the battery replacement system (such as the upper part 30a of the battery side 30e) satisfies: W1≤805mm.

[0233] In some embodiments, reference Figure 11-Figure 14 The width dimension W2 of the upper middle boss of the battery replacement system (such as the upper part 30a of the battery in the central part 30f of the battery) satisfies: W2≤640mm.

[0234] In some embodiments, reference Figure 11-Figure 14 The height dimension H1 of the bosses on both sides of the upper layer of the battery replacement system (such as the upper part 30a of the battery side 30e) satisfies: H1≤300mm.

[0235] In some embodiments, reference Figure 11-Figure 14 The height dimension H2 of the upper middle boss of the battery replacement system (such as the upper part 30a of the battery in the central part 30f of the battery) satisfies: H2≤150mm.

[0236] At present, the application scenarios of heavy-duty electric vehicles mainly include trunk logistics, medium and short-distance operations (such as urban waste transportation), and closed operation scenarios (such as ports). The power demand can be roughly divided into three types: 400-600kWh, 300-400kWh, and 150-200kWh. Based on this power series, it can be seen that the standard package solution can be flexibly matched to suit different scenarios. For example, if the power of the standard battery swap system is around 150-200kWh, three standard battery swap battery systems (referred to as three packages), or two standard battery swap battery systems (referred to as double packages), or a single standard battery swap battery system (referred to as single package) can be used to meet the power demand.

[0237] At present, the main models of heavy-duty electric vehicles are: 6*4 tractor, 4*2 tractor, 8*4 dump truck, 6*4 dump truck, 4*2 truck, 6*4 truck. Among them, the 6*4 tractor and 8*4 dump truck have relatively short wheelbases, and other models are compatible. Among them, 6*4 tractor: the wheelbase of traditional oil trucks is 3300mm, which is the ideal wheelbase, but it is impossible to arrange a large amount of electricity at this stage. For rear-mounted battery replacement models, the current wheelbase is extended to 3800mm, and this space cannot arrange the target electricity. At present, the client is encouraged to extend the wheelbase to 4200mm, and the battery space is decomposed based on this wheelbase. Among them, 8*4 dump trucks: some are used in cities, and some are used in mining areas. The wheelbase of 8*4 dump trucks in mining areas is longer to ensure the transportation volume, and the wheelbase is increased, so this space can arrange the target electricity. The wheelbase of traditional fuel vehicles in urban 8*4 dump trucks is 2500~2600mm, and this space cannot accommodate the target power. For models with rear-mounted battery swapping, the wheelbase is extended to 3200~3300mm, and chassis battery swapping can be based on this extended wheelbase to decompose the battery space.

[0238] The space limiting factors at the front end of the battery include: leaf springs and their brackets. Considering the heavy load, the industry generally has a space of about 1600 to 1800 mm (900 mm on one side). The space limiting factors at the rear end of the battery include: fenders, which are about 700 mm away from the center of the wheel. A 50 mm safety gap is reserved at the front and rear ends of the battery. The envelope size of the battery swap system for a 6*4 tractor is approximately: 4200-900-700-100=2500 mm (three packages), and the envelope size of the battery swap system for an 8*4 dump truck is approximately: 3300-900-700-100=1600 mm (two packages). Based on the envelope space of the above two battery swap systems, considering the gap of 20 to 30 mm between the battery swap systems, the length envelope size of each battery swap system is approximately: 700 to 820 mm.

[0239] When designing the width envelope of the battery swap system, it is sufficient to consider not exceeding the vehicle width required by regulations. For example, the width of a heavy-duty electric vehicle is 2550mm.

[0240] When designing the height envelope dimensions of the battery swap system, it is considered that a 20mm gap is maintained between the upper end of the battery swap system and the upper wing surface of the vehicle beam, and a ground clearance of 300mm or more or 400mm is maintained between the bottom of the battery swap system and the ground. The height of the upper wing surface of the vehicle beam from the ground is generally 1000-1100mm. Therefore, the height envelope dimensions of the battery swap system are approximately 580-780mm.

[0241] Furthermore, in order to improve the compatibility and interchangeability of battery replacement, the present application also proposes some embodiments of the battery mounting bracket 10.

[0242] In some embodiments, reference Fig.15 In the length direction of the vehicle (such as the first direction X), the length of the battery mounting space 4 is Y1, and satisfies: 620mm≤Y1≤720mm.

[0243] In some embodiments, reference Fig.15 In the width direction of the vehicle (such as the second direction Y), the width of the battery mounting space 4 is N1, and satisfies: 690mm≤N1≤815mm.

[0244] In some embodiments, reference Fig.15 In the width direction of the vehicle (such as the second direction Y), the minimum width between the two second main body walls 12 is N2, and satisfies: 660mm≤N2≤680mm.

[0245] In some embodiments, reference Fig.16In the width direction of the vehicle (such as the second direction Y), the total width of the battery mounting bracket 10 is P, and in the length direction of the vehicle (such as the first direction X), the total length of the battery mounting bracket 10 is R, and satisfies: 2300mm≤P≤2550mm, 700mm≤R≤900mm (for example, there is only one battery mounting space 4), or 1500mm≤R≤1700mm (for example, there are two battery mounting spaces 4), or 2300mm≤R≤2500mm (for example, there are three battery mounting spaces 4), or 3100mm≤R≤3300mm (for example, there are four battery mounting spaces 4).

[0246] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery mounting rack, characterized in that: The battery mounting frame includes a plurality of extensions arranged at intervals, a battery mounting space penetrating along the height direction of the extensions is formed between two adjacent extensions, and a battery mounting structure for mounting a battery in the battery mounting space is provided on the battery mounting frame.

2. The battery mounting rack according to claim 1, characterized in that: The two extension parts defining the battery mounting space are spaced apart in the first direction and connected by a main body, the main body is located on one side of the extension part in the second direction, and the first direction intersects with the second direction in a plane perpendicular to the height direction of the extension part.

3. The battery mounting rack according to claim 2, characterized in that: The two extension parts defining the battery mounting space are also connected via a reinforcing part, and the reinforcing part and the main body are arranged on both sides of the extension part in the second direction.

4. The battery mounting rack according to claim 3, characterized in that: At least one of the main body, the extending portion and the reinforcing portion is provided with the battery mounting structure.

5. The battery mounting rack according to any one of claims 2 to 4, characterized in that: The battery mounting structure is arranged on a side of the extension portion facing the battery mounting space.

6. The battery mounting rack according to claim 5, characterized in that: There are multiple battery mounting structures, and at least two of them are spaced apart along the second direction.

7. The battery mounting rack according to any one of claims 2 to 6, characterized in that: The extending portion is plate-shaped, a thickness direction of the extending portion is the first direction, and a length direction of the extending portion is the second direction.

8. The battery mounting rack according to claim 7, characterized in that: The height of the extension portion decreases in a direction away from the main body in the second direction.

9. The battery mounting rack according to claim 8, characterized in that: The battery mounting structure is arranged at the lower edge of the extension portion in the height direction, the lower edge of the extension portion extends along a horizontal line, and the upper edge of the extension portion has a decreasing trend in a direction away from the main body portion.

10. The battery mounting rack according to any one of claims 7 to 9, characterized in that: The extension portion is provided with reinforcing ribs and / or a weight-reducing structure.

11. The battery mounting rack according to any one of claims 2 to 10, characterized in that: The battery mounting rack includes a plurality of battery mounting spaces spaced apart along the first direction.

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

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

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

15. The battery mounting rack according to any one of claims 2 to 14, characterized in that: The battery mounting structure is provided on the extension portions on both sides of the battery mounting space in the first direction.

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

17. The battery mounting rack according to any one of claims 2 to 16, characterized in that: A plurality of extension portions defining a plurality of battery mounting spaces spaced apart along the first direction are connected to the same main body portion.

18. The battery mounting rack according to any one of claims 2 to 17, characterized in that: The two sides of the main body in the second direction are respectively connected to a plurality of the extension parts spaced apart along the first direction.

19. The battery mounting rack according to claim 18, characterized in that: The extension parts on both sides of the main body are arranged one by one along the second direction, and the length extension directions of the two correspondingly arranged extension parts are the same, and the orthographic projections along the length extension direction coincide with each other.

20. The battery mounting rack according to any one of claims 2 to 19, characterized in that: The main body includes a beam avoidance groove, and the beam avoidance groove has an opening penetrating along the first direction.

21. The battery mounting rack according to claim 20, characterized in that: The main body portion includes a first main body wall and two second main body walls, wherein the two second main body walls are arranged along the first direction and are respectively connected to two ends of the first main body wall along the second direction to form the vehicle beam avoidance groove with an open top between the two second main body walls and the first main body wall.

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

23. The battery mounting rack according to any one of claims 20 to 22, characterized in that: At least one of the main body and the extension portion has a vehicle beam connection structure.

24. A frame assembly, characterized in that: It comprises a vehicle frame and a battery mounting bracket as described in any one of claims 1 to 23, wherein the battery mounting bracket is used to mount the battery to the vehicle frame, and the height direction of the extension portion is the height direction of the vehicle frame.

25. The frame assembly according to claim 24, characterized in that The battery mounting bracket is mounted on the bottom of the vehicle frame. The vehicle frame includes a vehicle beam. The extending portion is provided on at least one side of the vehicle beam in a width direction, and at least a portion of the extending portion is higher than a bottom surface of the vehicle beam.

26. The frame assembly according to claim 25, characterized in that A plurality of the extension parts are provided on both sides of the vehicle beam in the width direction, and a plurality of the battery mounting spaces are respectively provided on both sides of the vehicle beam in the width direction and are arranged along the length direction of the vehicle beam.

27. A vehicle, characterized in that: The vehicle comprises a battery and a frame assembly as claimed in any one of claims 24 to 26, wherein at least a portion of the battery is accommodated in the battery mounting space.

28. The vehicle according to any one of claims 27, characterized in that The battery comprises an upper battery portion and a lower battery portion, wherein the upper battery portion is accommodated in the battery mounting space, and the battery is provided with a mounting structure at a position between the upper battery portion and the lower battery portion, wherein the mounting structure is detachably connected to the battery mounting structure.

29. The vehicle according to claim 28, characterized in that In the spacing direction of the extending portion, the size of the upper battery portion is smaller than the size of the lower battery portion, so as to form a step surface between the upper battery portion and the lower battery portion, and the step surface stops at the bottom of the extending portion.

30. The vehicle according to any one of claims 27 to 29, characterized in that The battery includes two battery side portions and a battery central portion. In the width direction of the frame, the two battery side portions are respectively located on both sides of the battery central portion, and the top surface of the battery central portion is lower than the top surface of the battery side portions, so as to form a clearance groove that runs through the length direction of the frame and has an open top for avoiding the vehicle beam between the two battery side portions and the battery central portion. At least one of the battery side portions and the battery central portion is detachably connected to the battery mounting structure.

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