Battery mounting rack, frame assembly and vehicle

Abstract

The battery mounting rack comprises a rack body, a mounting structure and a butt joint structure, the rack body is suitable for being mounted on a vehicle body, the mounting structure is integrated on the rack body and used for mounting a battery, and the butt joint structure is also integrated on the rack body and used for being connected with the vehicle body and being in butt joint with the battery. And the battery and the vehicle body form circuit and / or liquid path communication. According to the battery mounting rack, the mounting structure and the butt joint structure are integrated on the rack body, so that the reference standard of the mounting connection position of the battery is consistent with that of the water and electricity butt joint position, and the battery replacement efficiency and the battery replacement success rate are improved.

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 automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor related to their development. When the vehicle is replacing the battery, it is necessary not only to remove and replace the battery, but also to connect the battery to the vehicle's wires and pipes, and the battery replacement efficiency is low. 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 improve the efficiency and success rate of battery replacement.

[0004] In the first aspect, the present application provides a battery mounting rack, comprising: a rack body, a docking structure and a mounting structure, wherein the rack body is suitable for being installed on a vehicle body, the mounting structure is integrated on the rack body and is used to mount the battery, and the docking structure is also integrated on the rack body and is used to connect the vehicle body and dock the battery so that the battery and the vehicle body form a circuit and / or fluid connection.

[0005] In the technical solution of the embodiment of the present application, by integrating both the mounting structure and the docking structure on the frame body, when such a battery mounting frame is used to install the battery on the vehicle body, the mounting installation of the battery can be realized through the mounting structure integrated on the frame body, and the circuit and / or liquid circuit connection between the battery and the vehicle body can be realized through the docking structure integrated on the frame body, so that there is no need to connect wires and pipes, which simplifies the cumbersome battery replacement operation and improves the battery replacement efficiency. And because the mounting structure and the docking structure are both integrated on the frame body, the mounting connection position of the battery is consistent with the reference base of the water and electricity docking position, that is, the reference base is the frame body, thereby improving the success rate of battery replacement.

[0006] In some embodiments, the frame body includes: a main body and an extension part, the main body is suitable for being installed on a vehicle body, the docking structure is arranged on the main body, one end of the extension part is connected to the main body, and the other end extends in a direction away from the main body, and the mounting structure is arranged on the extension part.

[0007] In the above technical solution, since the frame body includes a main body and an extension portion, and one end of the extension portion is connected to the main body and the other end extends in a direction away from the main body, the docking structure and the mounting structure are respectively arranged on the main body and the extension portion, that is, the docking structure and the mounting structure are respectively arranged at different positions of the frame body to avoid mutual interference between the mounting structure and the docking structure, which is beneficial to reducing the difficulty of matching the docking structure and the mounting structure with the battery 30.

[0008] In some embodiments, the main body includes a beam avoidance groove, the beam avoidance groove has an opening that passes through along a first direction, and the docking structure is located in the beam avoidance groove.

[0009] In the above technical solution, by arranging a vehicle beam avoidance groove on the main body, when the main body is connected to the vehicle body, at least part of the vehicle beam can extend into the vehicle beam avoidance groove, so that the connection between the main body and the vehicle body is more compact, and by arranging the docking structure in the vehicle beam avoidance groove, on the one hand, the space in the vehicle beam avoidance groove can be fully utilized to improve space utilization, and it is convenient to reduce the space occupied by the docking structure at other positions of the battery mounting frame, and on the other hand, the docking structure can obtain the protection of the inner wall of the vehicle beam avoidance groove, so as to reduce the probability of the docking structure being damaged by bumps and improve the problem of the docking structure being corroded and failed by mud and water.

[0010] In some embodiments, the main body includes a plurality of first main body walls spaced apart along a first direction, a relief opening is formed between two adjacent first main body walls, and a docking interface of the docking structure is higher than the first main body wall and is arranged corresponding to the relief opening.

[0011] In the above technical solution, since the docking interface of the docking structure is higher than the first main body wall, the height of the docking interface of the docking structure is relatively large from the ground, which can obtain better protection, and the height setting of the docking interface of the docking structure is conducive to saving space, so as to increase the height dimension of the battery, improve the compactness of the battery mounting frame and the battery, make full use of the space, and increase the size and dimensional energy density of the battery. Moreover, by setting the avoidance opening, when the battery is mounted on the battery mounting frame, part of the battery can extend upward into the avoidance opening and dock with the docking interface of the docking structure, thereby meeting the docking requirements.

[0012] In some embodiments, the docking structure includes a supporting frame and a docking device, the supporting frame includes a supporting portion and a supporting leg portion, the docking device is arranged on the supporting portion, the supporting leg portion extends from both ends of the supporting portion in the first direction toward the first main wall and is connected to the first main wall.

[0013] In the above technical solution, by arranging the docking device on the bearing part, and arranging the leg parts to extend from the two ends of the bearing part in the first direction X toward the first main body part and connected to the first main body wall, the bearing part can be spaced apart from the first main body wall, so that the bearing frame can be constructed into a shape that can avoid the battery upward, and it is convenient to increase the setting height of the docking device, so as to save space and increase the height size of the battery. In addition, when the first direction X is the length direction of the vehicle, arranging the two leg parts on both sides of the bearing part in the first direction X can only occupy the space of the battery in the length direction of the vehicle. The space in this direction is relatively sufficient, which can reduce the space occupied by the battery in the width direction of the vehicle, which is conducive to increasing the size and energy density of the battery in the width direction of the vehicle.

[0014] In some embodiments, the bearing portion has a first weight-reducing structure, and / or a first reinforcement structure is provided at the connection between the leg portion and the bearing portion.

[0015] In the above technical solution, a first weight-reducing structure is provided on the load-bearing part to reduce the weight of the load-bearing part, thereby reducing the weight of the docking structure, so as to achieve a lightweight design of the docking structure. And / or a first reinforcement structure is provided at the connection between the load-bearing part and the leg part to enhance the structural strength of the connection between the load-bearing part and the leg part, thereby reducing the possibility of fracture at the connection between the leg part and the load-bearing part.

[0016] In some embodiments, the support frame is an integrally formed part and is assembled and connected to the first main body wall.

[0017] In the above technical solution, the supporting frame is set as an integrally formed part to reduce the difficulty of setting up the supporting frame and to ensure the overall structural strength of the supporting frame. The supporting frame is assembled and connected to the first main body wall to reduce the difficulty of loading and unloading the supporting frame and the first main body wall, thereby improving the production efficiency of the battery mounting frame.

[0018] In some embodiments, there are a plurality of avoidance openings spaced apart along the first direction, and each avoidance opening is respectively provided with a corresponding docking structure.

[0019] In the above technical solution, by setting a plurality of avoidance openings, when a plurality of batteries are mounted on a battery mounting rack, the docking requirements of the plurality of batteries with the circuits and / or liquid circuits of the vehicle body can be respectively achieved through a plurality of docking structures, that is, each battery can be connected with the circuits and / or liquid circuits of the vehicle body through the docking of the corresponding docking structure, so that the vehicle can be individually connected with each battery through the corresponding docking structure, which is beneficial for each battery to be powered separately or controlled separately by the vehicle body.

[0020] In some embodiments, the main body portion includes a second main body wall extending along a first direction, wherein there are two second main body walls and the second main body walls are spaced apart along a second direction intersecting the first direction, and the two second main body walls are connected at both ends of each first main body wall in the second direction to form a beam avoidance groove with an open top between the first main body wall and the second main body wall, and 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.

[0021] In the above technical solution, by setting the second main body wall, multiple first main body walls and second main body walls can be connected into an integral structure, so as to reduce the difficulty of setting and forming the main body, and to define the extension direction of the beam avoidance groove so that it extends along the first direction. Moreover, since the top of the beam avoidance groove is open, the main body can be pushed upward from bottom to top so that the beam enters the beam avoidance groove, which is conducive to reducing the difficulty of assembling the battery mounting frame to the vehicle body. For the vehicle body that has been assembled, the battery mounting frame can be installed later, so that the battery mounting frame can be used in a variety of vehicle models. Moreover, the extension part is connected to the side of the second main body wall away from the first main body wall in the second direction, which can increase the length of the extension part in the second direction while avoiding the interference between the extension part and the beam, so as to expand the battery mounting space in the second direction. And it is convenient to connect the extension part with the main body.

[0022] In some embodiments, a plurality of extension portions are provided on one side of the main body portion and are arranged at intervals along a first direction, and a battery mounting space is defined between two adjacent extension portions.

[0023] In the above technical solution, by setting a plurality of extensions arranged at intervals along the first direction on one side of the main body, the battery mounting space is limited between two adjacent extensions along the first direction, and the extension can be used to protect the battery. When the first direction is set as the length direction of the vehicle, and the mounting structure is set on the extension, at this time, the mounting structure and the extension will not occupy the space of the battery in the width direction of the vehicle, so that the size of the battery mounting space in the width direction of the vehicle can be increased, and the size of the battery in the width direction of the vehicle is increased, which is conducive to improving the size energy density of the battery. Moreover, setting the first direction as the length direction of the vehicle is relatively large, which is also conducive to increasing the size or number of the battery mounting space in the length direction of the vehicle, thereby further improving the size energy density or number of the battery.

[0024] In some embodiments, one side of the main body is provided with multiple battery mounting spaces spaced apart along a first direction, there are multiple docking structures spaced apart along the first direction, and the multiple docking structures and the multiple battery mounting spaces are arranged opposite to each other along a second direction intersecting the first direction.

[0025] In the above technical solution, a plurality of battery mounting spaces are arranged at intervals along a first direction on one side of the main body, so that the battery mounting frame can have the function of mounting a plurality of batteries in the first direction, that is, realizing a multi-pack mounting function, which is conducive to realizing flexible battery replacement, and the docking structure is arranged relative to the battery mounting space along the second direction, and the distribution direction of the docking structure does not occupy the space of the battery mounting space in the first direction, that is, the docking structure will not occupy the space in the arrangement direction of the plurality of battery mounting spaces while realizing docking with the battery, which is conducive to increasing the number or size of the battery mounting spaces arranged along the first direction, improving space utilization, and enabling the battery mounting frame to mount more or larger batteries.

[0026] In some embodiments, a mounting structure is arranged on a side of the extension portion facing the battery mounting space.

[0027] In the above technical solution, by arranging the mounting structure on the side of the extension part facing the battery mounting space, the mounting structure corresponds to the battery mounting space facing which battery mounting space, and is used to mount the battery in the battery mounting space facing which the mounting structure faces, so that the corresponding relationship between the mounting structure and the battery mounting space can be clearly defined, and the battery can be extended into the battery mounting space and connected to the mounting structure facing the battery mounting space, so that the battery can be mounted very conveniently. Moreover, when there are multiple battery mounting spaces, the mounting structures corresponding to different battery mounting spaces are arranged at different positions and will not interfere with each other, so that the mounting structures corresponding to each battery mounting space can have a relatively sufficient space for flexible arrangement, so that the mounting structure can mount the battery more easily and reliably.

[0028] In some embodiments, at least one extension portion located in the middle of multiple extension portions arranged along the first direction is a common extension portion, and the common extension portion has battery mounting spaces on both sides in the first direction, and mounting structures are arranged on both sides of the battery mounting spaces facing the two sides of the common extension portion.

[0029] In the above technical solution, when the number of battery mounting spaces arranged at intervals along the extension direction of the main body is fixed, the number of extensions arranged at intervals along the extension direction of the main body can be reduced, thereby reducing costs and reducing the load of the vehicle. In addition, since mounting structures are arranged on both sides of the battery mounting spaces facing both sides of the common extension, the batteries in the two adjacent battery mounting spaces in the first direction can be mounted on the mounting structures on both sides of the common extension, respectively, so that the battery mounting is more compact and helps to reduce the difficulty of setting the mounting structure.

[0030] In some embodiments, the 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 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 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, 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 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 common extension parts and improving the mounting reliability of the battery.

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

[0035] In the above technical solution, by setting the mounting structures on both sides of the battery mounting space to be misaligned in the orthographic projection on the projection surface in the first direction, it is further beneficial for the 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 mounting structures on both sides of the common extension part in the first direction are misaligned in the orthographic projection on the projection surface perpendicular to the first direction, and the mounting structures on both sides of the battery mounting space in the first direction are misaligned in the orthographic projection on the projection surface 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 mounting structures are disposed on a side of the extension portion facing the battery mounting space, and at least two of the mounting structures are spaced apart along the length direction of the extension portion.

[0037] In the above technical solution, it is beneficial to fully utilize the space in the length direction of the extension part and arrange more mounting structures, thereby enhancing the mounting stability of the battery, or increasing the number of batteries mounted in the battery mounting space.

[0038] In some embodiments, the extension portion includes a mounting edge protruding toward the battery mounting space, and the mounting structure is located on the mounting edge.

[0039] In the above technical solution, by setting a mounting edge, it is helpful to reduce the difficulty of setting the mounting structure, and it is easy to realize that the mounting structure is located on the side of the extension part facing the battery mounting space. Moreover, the mounting edge can play a certain direct or indirect supporting role on the battery to enhance the mounting stability of the battery.

[0040] In some embodiments, the mounting edge is located at a lower edge of the extending portion in a height direction.

[0041] In the above technical solution, the mounting structure is set at a lower height, which is conducive to reducing the difficulty of maintenance of the mounting structure, and is beneficial to the loading connection between the mounting structure and the battery, and improves the compactness of the battery and the extension part, reduces space waste, and utilizes the saved space to further increase the size of the battery, thereby further improving the size energy density of the battery.

[0042] In some embodiments, the length direction of the mounting edge is the same as the extension direction of the extension portion; wherein, the mounting edge is provided with a plurality of mounting structures arranged at intervals along the length direction of the mounting edge, or the mounting structure on the mounting edge is configured as one and extends along the length direction of the mounting edge.

[0043] In the above technical solution, since the length direction of the mounting edge is the same as the extension direction of the extension part, it is beneficial to reduce the processing difficulty of the mounting edge, so that the mounting edge has a larger length dimension and a larger number of mounting structures are set, and multiple mounting structures are set along the length direction of the mounting edge. The spacing, thereby helping to enhance the mounting stability of the battery, or helping to increase the number of batteries mounted on the mounting edge.

[0044] Alternatively, by providing only one mounting structure extending along the length direction of the mounting edge on the mounting edge, it is helpful to reduce the processing difficulty of the mounting structure, and the mounting structure extends along the length direction of the mounting edge, that is, the length direction of the mounting structure is consistent with the length direction of the mounting edge, so that the length dimension of the mounting structure is larger, with a larger force-bearing area, or with more connection positions, so as to facilitate simultaneous connection with multiple connection structures on the battery, improve the mounting reliability of the battery, or facilitate simultaneous mounting of multiple batteries.

[0045] In some embodiments, the battery mounting bracket further includes a reinforcing portion, and the reinforcing portion is used to connect at least two extension portions located on the same side of the main body portion.

[0046] In the above technical solution, it is beneficial to enhance the overall structural strength of the battery mounting frame, reduce the deformation caused by the force on the extension part, and improve the mounting reliability of the battery.

[0047] In some embodiments, the main body is provided with extension portions on both sides thereof in a second direction intersecting the first direction.

[0048] In the above technical solution, the space in the first direction and the second direction can be fully utilized, so as to utilize the space on both sides of the main body in the second direction Y to mount the batteries respectively. For example, the two parts of the same battery located on both sides of the main body can be mounted respectively, or the two batteries located on both sides of the main body can be mounted respectively, thereby increasing the size of the mounted battery or increasing the number of mounted batteries.

[0049] In some embodiments, the extension directions of the extension portions on both sides of the main body in the second direction are the same, and the orthographic projections of the projections of the extension portions on both sides of the main body in the second direction coincide with each other in the extension direction.

[0050] In the above technical solution, the first extension part and the second extension part can simultaneously mount the two parts of the same battery located on both sides of the width direction of the vehicle beam. In this way, the size of the battery can be made larger to reduce the number of batteries and reduce the complexity of battery replacement.

[0051] In some embodiments, the height of the extension portion decreases in a direction away from the main body.

[0052] In the above technical solution, the height of the extension portion is set to decrease in the direction away from the main body, so that the height of the end of the extension portion connected to the main body is relatively large, and the height of the end of the extension portion away from the main body is relatively small, thereby enhancing the connection strength between the extension portion and the main body, 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.

[0053] In some embodiments, the mounting structure is located at a lower edge of the extension portion, 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.

[0054] In the above technical solution, by arranging the mounting structure at the lower edge of the extension part in the height direction, the height of the mounting structure is relatively low, which is convenient for reducing the difficulty of mounting the battery, and the lower edge of the extension part extends along the horizontal line, which is beneficial for the mounting structures to be located at the same horizontal height, thereby facilitating the mounting operation of the battery. At the same time, the upper edge of the extension part tends to decrease in the direction away from the main body, so that the height of the end of the extension part connected to the main body is relatively large, and the height of the end of the extension part away from the main body is relatively small, thereby enhancing the connection strength between the extension part and the main body, improving the reliability of the extension part for mounting the battery, and reducing the weight of the extension part and reducing the load of the vehicle.

[0055] In some embodiments, a second weight-reducing structure and / or a second reinforcement structure is provided on the extension portion.

[0056] In the above technical solution, a second weight-reducing structure is provided to reduce the weight of the extension part and realize a lightweight design of the extension part; and / or a second reinforcing structure is provided to enhance the structural strength of the extension part and improve the problem of deformation caused by stress on the extension part.

[0057] In a second aspect, an embodiment of the present application provides a frame assembly, comprising: a vehicle beam, the vehicle beam comprising two longitudinal beams extending along a first direction and spaced apart along a second direction; a battery mounting frame of any of the above embodiments, wherein the frame body is mounted to the vehicle beam, and the docking structure is located between the two longitudinal beams.

[0058] In the above technical solution, by arranging the docking structure between the two longitudinal beams of the vehicle beam, the two longitudinal beams can be used to protect the docking structure to a certain extent, thereby reducing damage to the docking structure, which is beneficial to extending the service life of the docking structure, and enabling the docking structure to make full use of the space between the two longitudinal beams to improve space utilization, which is beneficial to increasing the size and dimensional energy density of the battery.

[0059] In some embodiments, the docking interface of the docking structure is higher than the bottom surface of the longitudinal beam and is arranged downward.

[0060] In the above technical solution, since the docking interface of the docking structure is higher than the bottom surface of the longitudinal beam, the height of the docking interface of the docking structure is relatively large, which can obtain better protection. In addition, the height setting of the docking interface of the docking structure is conducive to saving space, so as to increase the height dimension of the battery so that at least part of the battery can extend between the two longitudinal beams, improve the compactness of the battery mounting frame and the battery, make full use of the space, and increase the size and dimensional energy density of the battery. Moreover, by setting the docking interface downward, the battery can be mounted from bottom to top while being docked with the docking structure, thereby improving the efficiency of battery replacement.

[0061] In a third aspect, an embodiment of the present application provides a vehicle, comprising a battery and a frame assembly according to any one of the above embodiments, wherein the battery is mounted on a mounting structure and docked with a docking structure.

[0062] In the above technical solution, a frame assembly is provided to realize the mounting of the battery by utilizing the mounting structure, and the battery and the vehicle body are connected to form a circuit and / or a fluid path through a docking structure to meet the docking requirements of the circuit and / or fluid path of the battery and the vehicle body. By integrating the mounting structure and the docking structure on the frame body so that the positions of the two are consistent with the reference datum, the battery replacement efficiency and the battery replacement success rate are improved.

[0063] In some embodiments, the battery includes two battery side portions and a battery central portion. In the width direction of the vehicle beam, 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 runs through the length direction of the vehicle beam and has an open top for avoiding the vehicle beam. The battery side portions are detachably connected to the mounting structure, and the top of the battery central portion has a docking portion for docking with the docking structure.

[0064] 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. When the battery sides on both sides are connected to the mounting structure, the mounting reliability and stability of the battery can be improved. The docking part is set at the top of the central part of the battery, so that when the battery moves from bottom to top along the height direction of the vehicle, the docking part of the battery can be easily docked with the docking structure between the two longitudinal beams.

[0065] 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

[0066] 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:

[0067] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0068] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0069] Figure 3 It is a schematic diagram of assembling a frame assembly and a battery according to some embodiments of the present application;

[0070] Figure 4 A schematic diagram of a battery mounting rack according to some embodiments of the present application;

[0071] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0072] Figure 6 A partial enlarged view of a battery mounting rack according to another embodiment of the present application;

[0073] Figure 7 for Figure 4 The enlarged view of point B in the middle;

[0074] Figure 8 A schematic diagram of a battery according to an embodiment of the present application;

[0075] Fig. 9 A schematic diagram of a vehicle according to some embodiments of the present application;

[0076] Fig.10 for Fig. 9 Bottom view of the vehicle;

[0077] Fig.11 for Fig. 9 Sectional view at EE;

[0078] Fig.12 for Fig. 9 Cross-sectional view at FF;

[0079] Fig.13 It is an orthographic projection view of a battery mounting rack according to some embodiments of the present application;

[0080] Fig.14 A cross-sectional view of a battery mounting rack according to some embodiments of the present application.

[0081] Reference numerals: vehicle 1000, vehicle body 101, frame assembly 100, battery mounting frame 10, vehicle beam 20, longitudinal beam 201, cross beam 202, battery 30, battery side portion 30a, battery center portion 30b, clearance groove 30c, docking portion 30d, box body 301, first portion 3011, second portion 3012, battery cell 302, controller 40, motor 50, frame body 10a, main body portion 1, first direction X, first main body wall 11, The second main wall 12, the beam avoidance groove 13, the avoidance opening 14, the beam connecting structure 15, the extension part 2, the second direction Y, the height direction Z of the extension part, the common extension part 2a, the second weight reduction structure 21, the second reinforcement structure 22, the mounting edge 24, the mounting structure 3, the battery mounting space 4, the reinforcement part 5, the docking structure 6, the load-bearing frame 61, the load-bearing part 611, the support leg part 612, the first weight reduction structure 613, the first reinforcement structure 614, and the docking device 62. DETAILED DESCRIPTION

[0082] The following embodiments of the technical solution of the present application will be 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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).

[0088] 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.

[0089] 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.

[0090] 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.

[0091] In some vehicles in the related technology, the power battery is installed at the bottom of the vehicle, and the power battery needs to be connected to the vehicle's circuit and fluid circuits through wires and pipes. However, the operation of connecting the wires and pipes is cumbersome, the battery replacement efficiency is low, and there is a risk of disconnection and damage when the wires and pipes are suspended, which affects the reliability of the circuit and fluid circuit connection between the vehicle and the power battery.

[0092] To this end, the present application proposes a battery mounting rack, wherein the battery mounting rack includes a rack body, a mounting structure and a docking structure, the rack body is suitable for being installed on a vehicle body, the mounting structure is integrated on the rack body and is used to mount the battery, the docking structure is also integrated on the rack body and is used to connect the vehicle body and dock the battery so that the battery and the vehicle body form a circuit and / or liquid circuit connection.

[0093] When such a battery mounting rack is used to install the battery on a vehicle, the mounting installation of the battery can be realized through the mounting structure integrated on the rack body, and the circuit and / or fluid connection between the battery and the vehicle body can be realized through the docking structure integrated on the rack body, thereby eliminating the need to connect wires and pipes, simplifying the cumbersome battery replacement operation, improving the battery replacement efficiency, and reducing or avoiding the risk of disconnection and damage of suspended wires and pipes, thereby improving the reliability of circuit and / or fluid connection. And because the mounting structure and the docking structure are both integrated on the rack body, the mounting connection position of the battery is consistent with the reference datum of the water-electricity docking position, that is, the reference datum is the rack body, thereby improving the success rate of battery replacement.

[0094] However, if the mounting structure is only set on the frame body and the docking structure is set outside the frame body, for example, the docking structure is set on other mounting frames spaced apart from the frame body, or the docking structure is set on the vehicle body, for example, on the vehicle beam of the vehicle body, the reference datums of the mounting structure and the docking structure are inconsistent. Therefore, there will be some deviations in the relative position accuracy of the mounting structure and the docking structure, resulting in hidden dangers of mounting connection failure or water-electricity docking failure, which will affect the battery replacement efficiency and battery replacement success rate.

[0095] In short, in the context of increasing demand for battery replacement efficiency, the battery mounting rack of the embodiment of the present application can improve the battery replacement efficiency and the battery replacement success rate.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] Please refer to Figure 2 , Figure 2The 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.

[0101] 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 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] like Figure 1 , Figure 3 and Figure 4 As shown, the embodiment of the present application provides a battery mounting rack 10 for mounting a battery 30 on a vehicle body 101. The battery mounting rack 10 comprises: a rack body 10a, a mounting structure 3 and a docking structure 6, wherein the rack body 10a is suitable for mounting on the vehicle body 101. The mounting structure 3 is integrated on the rack body 10a and is used to mount the battery 30. The docking structure 6 is also integrated on the rack body 10a and is used to connect the vehicle body 101 and dock the battery 30, so that the battery 30 and the vehicle body 101 form a circuit and / or a fluid path connection.

[0108] 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.

[0109] Therefore, by integrating the mounting structure 3 on the frame body 10a, when the frame body 10a is installed on the vehicle body 101, the battery 30 is mounted on the frame body 10a through the connection between the mounting structure 3 and the battery 30, and by integrating the docking structure 6 on the frame body 10a, when the battery 30 is mounted on the frame body 10a through the mounting structure 3, the battery 30 can dock with the docking structure 6 to form a circuit and / or fluid circuit connection, and the docking structure 6 is also connected to the vehicle body 101, and also forms a circuit and / or fluid circuit connection, thereby satisfying the battery 30 The need to achieve circuit and / or fluid circuit connectivity with the vehicle body 101 through docking with the docking structure 6 can be satisfied.

[0110] The structure of the mounting structure 3 is not limited, for example, it may include but is not limited to a mounting slot, a mounting hole, a mounting protrusion, a mounting pin, a mounting screw, etc., which are not limited here. The connection method between the docking structure 6 and the vehicle body 101 is also not limited, for example, it may be connected by docking through a docking terminal, or it may be connected by plugging wires and / or pipes.

[0111] For example, when the docking structure 6 is used to achieve circuit connectivity, it can be used for current transfer between the vehicle 1000 and the battery 30, so that the battery 30 supplies power to the vehicle 1000, and the vehicle 1000 controls the battery 30. For example, when the docking structure 6 is used to achieve liquid circuit connectivity, it can be used for heat transfer between the thermal management system of the vehicle 1000 and the battery 30, so that the temperature of the battery 30 can be adjusted by the thermal management system to improve the working reliability and safety of the battery 30, or the thermal management system can be used to absorb the waste heat of the battery 30 to meet the heat source requirements of the heat pump air conditioning system of the vehicle 1000, etc., which will not be elaborated here. Therefore, by setting the docking structure 6 on the battery mounting frame 10, the connection requirements of the circuit and / or liquid circuit between the battery 30 and the vehicle body 101 can be met by the structural design of the battery mounting frame 10, so that the structural design of the vehicle body 101 and the battery 30 can be simplified. It should be noted that the setting position of the docking structure 6 is not limited, and can be specifically selected according to the shape of the battery mounting frame 10.

[0112] In some embodiments, the docking structure 6 may include a first docking structure and a second docking structure, the first docking structure is used to dock with the circuit terminal on the battery 30, and the second docking structure is used to dock with the liquid path port on the battery 30. The relative positions of the first docking structure and the second docking structure are not limited, for example, they can be spaced apart in the horizontal direction, such as left and right or front and back, so that the first docking structure and the second docking structure do not interfere with each other when docking. Of course, the first docking structure and the second docking structure mentioned above are only used to illustrate part of the docking structure 6, and do not represent a limitation thereto.

[0113] When such a battery mounting rack 10 is used to mount the battery 30 on the vehicle body 101, the mounting and installation of the battery 30 can be realized through the mounting structure 3 integrated on the rack body 10a, and the circuit and / or liquid circuit between the battery 30 and the vehicle body 101 can be connected through the docking structure 6 integrated on the rack body 10a, so that there is no need to connect wires and pipes, which simplifies the cumbersome battery replacement operation and improves the battery replacement efficiency. And because the mounting structure 3 and the docking structure 6 are both integrated on the rack body 10a, the mounting connection position of the battery 30 is consistent with the reference reference of the water and electricity docking position, that is, the reference reference is the rack body 10a, so that the success rate of battery replacement can be improved.

[0114] In some embodiments, please refer to Figure 4 The frame body 10a includes: a main body portion 1 and an extension portion 2.

[0115] Please refer to Figure 3 and Figure 4The main body 1 is suitable for being installed on the vehicle body 101 , the docking structure 6 is arranged on the main body 1 , one end of the extension part 2 is connected to the main body 1 , and the other end extends in a direction away from the main body 1 , and the mounting structure 3 is arranged on the extension part 2 .

[0116] “One end of the extension portion 2 is connected to the main portion 1, and the other end extends in a direction away from the main portion 1” includes that one end of the extension portion 2 is connected to the main portion 1 and the other end extends obliquely or vertically in a direction away from the main portion 1, etc., that is, the specific extension direction of the extension portion 2 is not limited.

[0117] Therefore, by setting the docking structure 6 on the main body 1, when the main body 1 is installed on the vehicle body 101, the connection between the vehicle body 101 and the docking structure 6 is facilitated, and the mounting structure 3 is set on the extension part 2, so that the docking structure 6 and the mounting structure 3 are respectively set at different positions of the frame body 10a to prevent the mounting structure 3 and the docking structure 6 from interfering with each other, which is beneficial to reduce the difficulty of matching the docking structure 6 and the mounting structure 3 with the battery 30.

[0118] In addition, when the extension portion 2 is extended along the width direction of the vehicle body 101 (for example Figure 4 When the extension portion 2 extends in the second direction Y shown in FIG. 1 , the extension portion 2 may be located in the length direction of the battery 30 in the vehicle body 101 (eg Figure 4 On one side of the first direction X) shown in the figure, since the length dimension of the vehicle body 101 is relatively sufficient relative to the width dimension, the extension portion 2 and the mounting structure 3 arranged on the extension portion 2 are arranged to occupy the space of the battery 30 in the length direction of the vehicle body 101, which can help reduce the space occupied by the battery 30 in the width direction of the vehicle body 101, thereby helping to increase the size of the battery 30 in the width direction of the vehicle body 101 and improve the size energy density of the battery 30.

[0119] In some embodiments, please refer to Figure 4 The main body 1 includes a beam avoidance groove 13, the beam avoidance groove 13 has an opening extending along the first direction X, and the docking structure 6 is located in the beam avoidance groove 13. For example, the first direction X can be set to be consistent with the length direction of the beam 20 of the vehicle body 101. In the embodiment of the present application, the length direction of the vehicle body 101, the length direction of the vehicle 1000, and the length direction of the beam 20 are all consistent, and the width direction of the vehicle body 101, the width direction of the vehicle 1000, and the width direction of the beam 20 are all consistent.

[0120] Thus, by providing the beam avoidance groove 13 on the main body 1, when the main body 1 is connected to the vehicle body 101, at least part of the beam 20 can extend into the beam avoidance groove 13, and the extension direction of the beam 20 is the same as the through direction of the opening, so as to avoid interference between the battery mounting frame 10 and the beam 20, improve the compactness of the matching between the battery mounting frame 10 and the beam 20, and facilitate the use of the space near the beam 20 to set the battery 30, thereby facilitating the increase of the size and dimensional energy density of the battery 30. Moreover, by providing the docking structure 6 in the beam avoidance groove 13, the space in the beam avoidance groove 13 can be fully utilized to improve the space utilization rate, and it is convenient to reduce the space occupied by the docking structure 6 at other positions of the battery mounting frame 10, thereby increasing the size and dimensional energy density of the battery 30. Moreover, the docking structure 6 can obtain the protection of the inner wall of the beam avoidance groove 13, so as to reduce the probability of the docking structure 6 being damaged by collision, improve the problem of the docking structure 6 being corroded and failed by mud and water, etc., improve the reliability and stability of docking, and reduce the risk of electrical failure caused by mud and splashing water erosion of the docking structure 6. Moreover, the docking structure 6 does not need to occupy the space outside the beam 20, and will not interfere with the connection between the battery mounting frame 10 and the beam 20 or the battery 30. At the same time, it is conducive to shortening the distance between the vehicle body 101 and the docking structure 6, so as to reduce the difficulty of connecting the vehicle body 101 and the docking structure 6.

[0121] Exemplarily, a beam connection structure 15 may be provided on the main body 1 to achieve connection between the main body 1 and the beam 20. 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 2 may both have a portion close to the beam 20. In this way, by providing the beam connection structure 15 to connect to the beam 20, it is convenient to install the battery mounting frame 10 on the beam 20.

[0122] In some embodiments, please refer to Figure 4 The main body 1 includes a plurality of first main body walls 11 spaced apart along a first direction X, and an escape opening 14 is formed between two adjacent first main body walls 11. The docking interface (such as the interface of the circuit and / or the interface of the fluid path) of the docking structure 6 is higher than the first main body wall 11 and is arranged corresponding to the escape opening 14. Here, the height direction of the vehicle body 101 is defined as the up-down direction, and the height direction of the vehicle body 101 is consistent with the height direction of the vehicle 1000, both of which are up-down in the gravity direction.

[0123] Therefore, since the docking interface of the docking structure 6 is higher than the first main body wall 11, the height of the docking interface of the docking structure 6 from the ground is relatively large, which can obtain better protection, and the height setting of the docking interface of the docking structure 6 is conducive to saving space, so as to increase the height dimension of the battery 30, improve the compactness of the matching between the battery mounting frame 10 and the battery 30, make full use of the space, and increase the size and dimensional energy density of the battery 30. Moreover, by setting the avoidance opening 14, when the battery 30 is mounted on the battery mounting frame 10, a part of the battery 30 can extend upward into the avoidance opening 14 and dock with the docking interface of the docking structure 6, thereby meeting the docking requirements.

[0124] In some embodiments, please refer to Figure 7 The docking structure 6 includes a carrier frame 61 and a docking device 62. The carrier frame 61 includes a carrier portion 611 and a leg portion 612. The docking device 62 is arranged on the carrier portion 611. The leg portion 612 extends from both ends of the carrier portion 611 in the first direction X toward the first main wall 11 and is connected to the first main wall 11.

[0125] In the above technical solution, by arranging the docking device 62 on the bearing part 611, and arranging the leg parts 612 to extend from both ends of the bearing part 611 in the first direction X toward the first main body part 1 and connected to the first main body wall 11, the bearing part 611 can be spaced apart from the first main body wall 11, so that the bearing frame 61 can be constructed in a shape that can avoid the battery 30 upward, and it is convenient to increase the setting height of the docking device 62, so as to save space and increase the height size of the battery 30. In addition, when the first direction X is the length direction of the vehicle 1000, the two leg parts 612 are arranged on both sides of the bearing part 611 in the first direction X, which can only occupy the space of the battery 30 in the length direction of the vehicle 1000. The space in this direction is relatively sufficient, and the space occupied by the battery 30 in the width direction of the vehicle 1000 can be reduced, which is conducive to increasing the size and energy density of the battery 30 in the width direction of the vehicle 1000.

[0126] In some embodiments, please refer to Figure 7 The bearing portion 611 has a first weight-reducing structure 613 , and / or a first reinforcing structure 614 is provided at the connection between the leg portion 612 and the bearing portion 611 .

[0127] Therefore, by providing the first weight-reducing structure 613 on the bearing portion 611, the weight of the bearing portion 611 is reduced, and the weight of the docking structure 6 is further reduced, so as to achieve a lightweight design of the docking structure 6. The first weight-reducing structure 613 may include but is not limited to a weight-reducing hole, a weight-reducing groove, or a thinning process.

[0128] Therefore, by setting the first reinforcement structure 614 at the connection between the bearing part 611 and the leg part 612, the structural strength of the connection between the bearing part 611 and the leg part 612 is enhanced, and the possibility of fracture at the connection between the leg part 612 and the bearing part 611 is reduced, which is conducive to reducing the thickness of the bearing part 611 and the leg part 612, so as to achieve a lightweight design of the docking structure 6. Among them, the first reinforcement structure 614 can include but is not limited to reinforcement ribs, strip reinforcement protrusions, or partial thickening of the extension part 2, and when the first reinforcement structure 614 is set as reinforcement ribs, the structural form of the reinforcement ribs is not limited, for example, it can be straight, curved, or cross-shaped, etc.

[0129] In some embodiments, please refer to Figure 7 The carrier frame 61 is an integrally formed part and is assembled and connected with the first main body wall 11 .

[0130] Therefore, by setting the supporting frame 61 as an integrally formed part, the difficulty of setting the supporting frame 61 is reduced, and it is beneficial to ensure the overall structural strength of the supporting frame 61, and the supporting frame 61 is assembled and connected to the first main body wall 11, so as to reduce the difficulty of assembling the supporting frame 61 and improve the production efficiency of the battery mounting frame 10.

[0131] In addition, the support frame 61 may not be an integrally formed part, for example, it may be an assembled connection between the support portion 611 and the leg portion 612 .

[0132] Herein, "assembly connection" includes but is not limited to welding connection, connection by bolts, clamping connection, plug-in connection, etc.

[0133] In some embodiments, please refer to Figure 4 There are a plurality of avoidance openings 14 arranged at intervals along the first direction X, and each avoidance opening 14 is respectively provided with a corresponding docking structure 6 .

[0134] Therefore, by setting a plurality of avoidance openings 14, when a plurality of batteries 30 are mounted on the battery mounting frame 10, the connection requirements of the circuits and / or fluid paths of the plurality of batteries 30 with the vehicle body 101 can be respectively achieved through a plurality of docking structures 6, that is, each battery 30 can achieve the connection requirements of the circuits and / or fluid paths with the vehicle body 101 through the docking of the corresponding docking structure 6, so that the vehicle 1000 can achieve separate connection with each battery 30 through the corresponding docking structure 6, which is beneficial for each battery 30 to be powered separately or controlled separately by the vehicle body 101.

[0135] In some embodiments, please refer to Figure 4 and Figure 7The main body 1 includes a second main body wall 12 extending along the first direction X, and the second main body walls 12 are two and are arranged at intervals along the second direction Y. The second direction Y intersects with the first direction X (such as at an acute angle, an obtuse angle, or a right angle). The two second main body walls 12 are connected to the two ends of each first main body wall 11 in the second direction Y to form a beam avoidance groove 13 with an open top between the first main body wall 11 and the second main body wall 12, and the extension part 2 is connected to the second main body wall 12.

[0136] Thus, by setting the second main body wall 12, the plurality of first main body walls 11 and the second main body wall 12 can be connected into an integral structure, thereby facilitating the reduction of the difficulty of setting and forming the main body 1, and facilitating the definition of the extension direction of the beam avoidance groove 13, so that it extends along the first direction X, and, since the top of the beam avoidance groove 13 is open, the main body 1 can be pushed upward from bottom to top, so that the beam 20 enters the beam avoidance groove 13, thereby facilitating the reduction of the difficulty of assembling the battery mounting frame 10 to the vehicle body 101, and the battery mounting frame 10 can be subsequently installed on the vehicle body 101 that has been assembled, so that the battery mounting frame 10 can be used for 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, at which time, the battery mounting frame 10 and the vehicle body 101 can be assembled simultaneously during the process of assembling the vehicle body 101.

[0137] Please refer to Figure 4 and Figure 5 The extension part 2 is connected to the side of the second main body wall 12 away from the first main body wall 11 in the second direction Y, which can increase the length of the extension part 2 in the second direction Y while avoiding interference between the extension part 2 and the vehicle beam 20, 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.

[0138] In some embodiments, please refer to Figure 4 A plurality of extension portions 2 arranged at intervals along a first direction X are provided on one side of the main body portion 1 , and a battery mounting space 4 is defined between two adjacent extension portions 2 .

[0139] Thus, by providing a plurality of extension portions 2 spaced apart along the first direction X on one side of the main body 1 , the battery mounting space 4 is defined between two adjacent extension portions 2 along the first direction X, and the extension portions 2 can be used to protect the battery 30 .

[0140] In addition, when the first direction X is set as the length direction of the vehicle 1000 and the mounting structure 3 is set on the extension part 2, at this time, the 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, because the length space of the vehicle 1000 is relatively large, so as to further improve the size energy density or number of the battery 30.

[0141] In some embodiments, please refer to Figure 4 A plurality of battery mounting spaces 4 spaced apart along a first direction X are provided on one side of the main body 1 .

[0142] In the above technical solution, a plurality of battery mounting spaces 4 are provided at intervals along the first direction X on one side of the main body 1, so that the battery mounting rack 10 can have the function of mounting a plurality of batteries 30 in the first direction X, that is, realize the multi-pack mounting function, which is conducive to realizing flexible battery replacement. In addition, by providing the extension part 2 to define the battery mounting space 4, the problems of collision and heat transfer between the batteries 30 in two adjacent battery mounting spaces 4 along the first direction X can be improved.

[0143] In some embodiments, please refer to Figure 4 When one side of the main body 1 is provided with a plurality of battery mounting spaces 4 spaced apart along the first direction X, the docking structures 6 can be provided in plurality and spaced apart along the first direction X, and the plurality of docking structures 6 and the plurality of battery mounting spaces 4 are arranged opposite to each other along the second direction Y, and the second direction Y intersects the first direction X (for example, at an acute angle, an obtuse angle, or a right angle).

[0144] Therefore, the distribution direction of the docking structure 6 does not occupy the space of the battery mounting space 4 in the first direction X, that is, while the docking structure 6 achieves docking with the battery 30, it does not occupy the space in the arrangement direction of multiple battery mounting spaces 4, which is beneficial to increasing the number or size of the battery mounting spaces 4 arranged along the first direction X, improving space utilization, and enabling the battery mounting rack 10 to mount more or larger batteries 30.

[0145] In some embodiments, both the battery mounting space 4 and the avoidance opening 14 can be set to be multiple and spaced along the length direction (such as the first direction X) of the vehicle beam 20, and the avoidance opening 14 corresponds to the battery mounting space 4 along the width direction (such as the second direction Y) of the vehicle beam 20 one by one, and each avoidance opening 14 is respectively provided with a docking structure 6. Therefore, when the size of the battery 30 is large, the part of the battery 30 corresponding to the battery mounting space 4 can be extended into the battery mounting space 4, and the part corresponding to the avoidance opening 14 can be extended into the avoidance opening 14 to achieve docking with the docking structure 6.

[0146] In some embodiments, please refer to Figure 4 A mounting structure 3 is arranged on one side of the extension portion 2 facing the battery mounting space 4 .

[0147] In an embodiment of the present application, a mounting structure 3 that can be connected to a battery 30 is provided on the battery mounting rack 10. When the battery 30 is connected to the mounting structure 3, at least a portion of the battery 30 can be stored in the battery mounting space 4, presenting a mounted state. In some embodiments of the present application, when the battery mounting rack 10 includes a plurality of battery mounting spaces 4, the battery mounting rack 10 is provided with a mounting structure 3 corresponding to each battery mounting space 4, so that each battery mounting space 4 can be used to mount a battery 30, and the mounting structures 3 corresponding to different battery mounting spaces 4 can be independent of each other, so that each battery mounting space 4 can individually replace the mounted battery 30.

[0148] Thus, by arranging the mounting structure 3 on the side of the extension portion 2 facing the battery mounting space 4, the mounting structure 3 corresponds to the battery mounting space 4 facing which battery mounting space 4, and is used to mount the battery 30 in the battery mounting space 4 facing which the mounting structure 3 faces, so that the corresponding relationship between the 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 mounting structure 3 facing the battery mounting space 4, so that the mounting of the battery 30 can be easily realized. Moreover, when there are multiple battery mounting spaces 4, the 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 mounting structures 3 corresponding to each battery mounting space 4 can have a relatively sufficient space for flexible arrangement, so that the mounting structure 3 can mount the battery 30 more easily and reliably.

[0149] In some embodiments, please refer to Figure 4 At least one extension portion 2 located in the middle of the multiple extension portions 2 arranged along the first direction X is a common extension portion 2a, and the common extension portion 2a has battery mounting spaces 4 on both sides in the first direction X, and mounting structures 3 are arranged on both sides of the battery mounting spaces 4 on both sides of the common extension portion 2a.

[0150] It is worth noting that “at least one extending portion 2 in the middle of the plurality of extending portions 2 arranged along the first direction X” means that at least one extending portion 2 other than the two extending portions 2 on both sides of the plurality of extending portions 2 arranged at intervals along the first direction X is a common extending portion 2a. Figure 3 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, four extension portions 2 are provided on one width side of the vehicle beam 20, and at least one of the two middle extension portions 2 is a common extension portion 2a.

[0151] Among them, the mounting structures 3 are respectively arranged on both sides of the battery mounting space 4 facing the two sides of the common extension part 2a, so that the batteries 30 in the two adjacent battery mounting spaces 4 in the first direction X can be respectively mounted on the mounting structures 3 on both sides of the common extension part 2a, so that the mounting of the batteries 30 is more compact and it is helpful to reduce the difficulty of setting the mounting structure 3.

[0152] Therefore, when the number of battery mounting spaces 4 arranged at intervals along the first direction X is fixed, the number of extension portions 2 arranged at intervals along the first direction X can be reduced. For example, in the minimum case, the number of extension portions 2 on one side of the width of the vehicle beam 20 can be one more than the number of mounting spaces, that is, only one extension portion 2 is arranged between two adjacent battery mounting spaces 4 along the first direction X, which is beneficial to reduce costs and reduce the load of the vehicle 1000.

[0153] 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 be provided with a mounting structure 3 corresponding to the battery mounting space 4 on one side, thereby reducing the bearing force of each extension portion 2 on the battery 30 and improving the mounting reliability of the battery 30.

[0154] For example, please refer again to Figure 4 The battery mounting frame 10 includes four extensions 2 spaced apart and distributed along the first direction X, and the four extensions 2 define three battery mounting spaces 4, and the two middle extensions 2 are both common extensions 2a. Of course, the number of battery mounting spaces 4 in the above description is only used for illustration, for example, the battery mounting spaces 4 set in the first direction X of the battery mounting frame 10 can also be provided with two, or three, or five, or more, etc., which can be set according to the specific needs of the vehicle 1000.

[0155] 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.

[0156] In some embodiments, the orthographic projections of the 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 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 mounting structure 3 on the other side of the common extension portion 2a to the main body 1 in the second direction Y.

[0157] Therefore, by setting the mounting structures 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 spaces 4 on both sides of the common extension part 2a are respectively connected to the mounting structures 3 on both sides of the common extension part 2a, stress concentration can be reduced to reduce deformation, fracture and other problems of the extension part 2, thereby improving the service life of the common extension part 2a and improving the mounting reliability of the battery 30.

[0158] In some embodiments, please refer to Figure 4 A mounting structure 3 is provided on the extension portion 2 on both sides of the battery mounting space 4 in the first direction X.

[0159] Therefore, 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 mounting structures 3 on both sides can disperse the force to reduce stress concentration and cause deformation, fracture and other problems in the extension part 2, thereby increasing the service life of the common extension part 2a and improving the mounting reliability of the battery 30.

[0160] In some embodiments, the orthographic projections of the mounting structures 3 on both sides of the battery mounting space 4 on the projection plane perpendicular to the first direction X are misaligned. For example, the distance from any 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 mounting structure 3 on the other side of the battery mounting space 4 to the main body 1 in the second direction Y.

[0161] Therefore, by setting the mounting structures 3 on both sides of the battery mounting space 4 to be staggered in the orthographic projection on the projection plane perpendicular to the first direction X, it is further beneficial to disperse the force on the mounting structures 3 on both sides, and further improve the deformation, fracture and other problems of the extension part 2 caused by stress concentration.

[0162] In addition, when the 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 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, which is conducive to simplifying the structure, facilitating processing, reducing costs, and improving assembly efficiency.

[0163] Of course, the present application is not limited to this. For example, the mounting structures 3 on both sides of the common extension portion 2a in the first direction X can also be set so that their orthographic projections on the projection plane perpendicular to the first direction X coincide with each other. At this time, the orthographic projections of the mounting structures 3 on both sides of the battery mounting space 4 in the first direction X on the projection plane in the first direction X can also coincide with each other, thereby simplifying processing and reducing costs.

[0164] In some embodiments, a plurality of mounting structures 3 are disposed on one side of the extension portion 2 facing the battery mounting space 4, and at least two of the mounting structures 3 are disposed along the length direction of the extension portion 2 (eg Figure 4 The second direction Y) shown in FIG.

[0165] In this way, it is beneficial to fully utilize the space in the length direction of the extension part 2 and arrange more mounting structures 3, thereby enhancing the mounting stability of the battery 30, or increasing the number of batteries 30 mounted in the battery mounting space 4.

[0166] In some embodiments, please refer to Figure 4 The extension portion 2 includes a mounting edge 24 protruding toward the battery mounting space 4 , and the mounting structure 3 is located on the mounting edge 24 .

[0167] For example, the mounting edge 24 protrudes along the first direction X toward the inside of the battery mounting space 4 .

[0168] In this way, by setting the mounting edge 24, it is helpful to reduce the difficulty of setting the mounting structure 3, and it is easy to realize that the mounting structure 3 is located on the side of the extension part 2 facing the battery mounting space 4. Moreover, the mounting edge 24 can play a certain direct or indirect supporting role on the battery 30 to enhance the mounting stability of the battery 30.

[0169] In some embodiments, please refer to Figure 4 , the mounting edge 24 is located at the lower edge of the extension portion 2 in the height direction Z.

[0170] As a result, the mounting structure 3 is set at a lower height, which is conducive to reducing the difficulty of maintenance of the mounting structure 3, and is beneficial to the loading connection between the mounting structure 3 and the battery 30, and improves the compactness of the battery 30 and the extension part 2, reduces space waste, and utilizes the saved space to further increase the size of the battery 30, thereby further improving the size energy density of the battery 30.

[0171] For example, when a tool is used to extend upward to the position of the mounting structure 3 to perform the mounting connection between the mounting structure 3 and the battery 30, the raised position of the tool is lower than the extension portion 2, so that the lifting height of the tool can be reduced, and the tool does not need to be extended between the battery 30 and the extension portion 2. There is no need to increase the gap between the battery 30 and the extension portion 2 to meet the tool insertion requirement, thereby reducing space waste and utilizing the saved space to further increase the size of the battery 30, thereby further improving the size energy density of the battery 30.

[0172] In some embodiments, please refer to Figure 4 , the length direction of the mounting edge 24 is the same as the extension direction of the extension portion 2; wherein, please refer to Figure 5 , Figure 5 This is a partial enlarged view of a battery mounting rack 10 according to an embodiment of the present application. A plurality of mounting structures 3 are provided on the mounting edge 24 and are arranged at intervals along the length direction of the mounting edge 24 .

[0173] Therefore, since the length direction of the mounting edge 24 is the same as the length direction of the extension portion 2, it is beneficial to reduce the processing difficulty of the mounting edge 24, so that the mounting edge 24 has a larger length dimension and a larger number of mounting structures 3 are set, and multiple mounting structures 3 are set along the length direction of the mounting edge 24. The intervals, thereby helping to enhance the mounting stability of the battery 30, or helping to increase the number of batteries 30 mounted on the mounting edge 24.

[0174] Alternatively, please refer to Figure 6 , Figure 6 This is a partial enlarged view of a battery mounting rack 10 according to another embodiment of the present application. The mounting structure 3 on the mounting edge 24 is configured as one and extends along the length direction of the mounting edge 24 .

[0175] In the above technical solution, since the length direction of the mounting edge 24 is the same as the extension direction of the extension portion 2, it is beneficial to reduce the processing difficulty of the mounting edge 24, so that the mounting edge 24 has a larger length dimension and a larger number of mounting structures 3 are set. Multiple mounting structures 3 are set along the length direction of the mounting edge 24, which is beneficial to enhance the mounting stability of the battery 30, or to increase the number of batteries 30 mounted on the mounting edge 24.

[0176] Or, only one mounting structure 3 extending along the length direction of the mounting edge 24 is provided on the mounting edge 24. Thus, by only providing one mounting structure 3 on the mounting edge 24, it is helpful to reduce the processing difficulty of the mounting structure 3, and the mounting structure 3 extends along the length direction of the mounting edge 24, that is, the length direction of the mounting structure 3 is consistent with the length direction of the mounting edge 24, so that the mounting structure 3 has a larger size, a larger force-bearing area, or has more connection positions, so as to facilitate simultaneous connection with multiple connection structures on the battery 30, improve the mounting reliability of the battery 30, or facilitate simultaneous mounting of multiple batteries 30.

[0177] In some embodiments, please refer to Figure 4 The battery mounting frame 10 further includes a reinforcing portion 5 , which is used to connect at least two extending portions 2 located on the same side of the main body 1 .

[0178] It is worth noting that this embodiment is applicable to the cases where "at least one extension portion 2 is arranged on each of the two sides in the width direction of the main body 1" and "an extension portion 2 is arranged on one side in the width direction of the main body 1". In addition, at least two extension portions 2 connected by the reinforcing portion 5 may be adjacent or non-adjacent.

[0179] In addition, it is worth noting that the width direction of the main body 1 is consistent with the width direction of the vehicle beam 20, that is, the left-right direction of the vehicle 1000. For example, at least two extensions 2 on the left side of the main body 1 are connected by the reinforcement 5, and / or at least two extensions 2 on the right side of the main body 1 are connected by the reinforcement 5.

[0180] This helps to enhance the overall structural strength of the battery mounting frame 10 , reduce deformation of the extension portion 2 caused by force, and improve the mounting reliability of the battery 30 .

[0181] Exemplarily, the reinforcing portion 5 and the main body 1 are disposed on both sides of the extension portion 2 in the second direction Y. Thus, the two ends of the two extension portions 2 defining the battery mounting space 4 in the second direction Y can be connected by the main body 1 and the reinforcing portion 5, respectively. In this way, the structure around the battery mounting space 4 is formed into a ring shape, which has a higher structural strength, a higher mounting reliability for the battery 30, and can more comprehensively protect the battery 30 from the circumference, and the position of the mounting structure 3 can be flexibly selected.

[0182] In some embodiments, please refer to Figure 4 , the main body 1 is provided with extension portions 2 on both sides thereof in the second direction Y, respectively.

[0183] Therefore, the batteries 30 can be mounted respectively using the space on both sides of the main body 1 in the second direction Y. For example, the two parts of the same battery 30 located on both sides of the main body 1 can be mounted respectively, or the two batteries 30 located on both sides of the main body 1 can be mounted respectively, thereby increasing the size of the mounted battery 30 or increasing the number of mounted batteries 30.

[0184] In addition, when each of the two sides of the main body 1 in the second direction Y has the function of mounting multiple batteries 30 in the first direction X, 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 help to increase the cruising range of the vehicle 1000 after a single battery replacement.

[0185] For example, when the battery mounting rack 10 is installed on the vehicle body 101, the main body 1 can be fixed to 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 rack 10 has a double-sided mounting space form to fully utilize the space under the vehicle.

[0186] In some embodiments, the extension directions of the extension portions 2 on both sides of the main body 1 in the second direction Y are the same, and the orthographic projections of the projections of the extension portions 2 on both sides of the main body 1 in the second direction Y coincide with each other.

[0187] 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 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.

[0188] In some embodiments, please refer to Figure 4 The height of the extension portion 2 tends to decrease in the direction away from the main body 1.

[0189] It is worth explaining that “showing a decreasing trend” can mean a gradual decrease or a step-by-step decrease.

[0190] 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.

[0191] 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.

[0192] In some embodiments, please refer to Figure 4 The mounting structure 3 is located at the lower edge of the extension part 2, 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.

[0193] Therefore, by setting the mounting structure 3 at the lower edge of the extension part 2 in the height direction Z, and the lower edge of the extension part 2 extending along the horizontal line, the battery mounting structures 3 are advantageously located at the same height and the height is relatively low, which is beneficial to the loading connection between the battery mounting structure 3 and the battery 30, and is convenient to reduce the difficulty of mounting the battery 30, and is beneficial to saving space for battery replacement operations, and is beneficial to increasing the size and energy density of the battery.

[0194] For example, when the mounting structure 3 is located at the lower edge of the extension portion 2, for example, it is arranged on the mounting edge 24, and the mounting edge 24 is located at the lower edge of the extension portion 2, the lower edge of the extension portion 2 can be set to extend horizontally, and the upper edge of the extension portion 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 mounting structures 3 to be located at the same horizontal height, thereby facilitating the mounting operation of the battery 30.

[0195] The lower edge of the extension part 2 extends along the horizontal line, which is conducive to the mounting structure 3 being at the same horizontal height, thereby facilitating the mounting operation of the battery 30. At the same time, the upper edge of the extension part 2 tends to decrease along the direction away from the main body 1, so that the height of the end of the extension part 2 connected to the main body 1 is relatively large, while the height of the end of the extension part 2 away from the main body 1 is relatively small, thereby enhancing the connection strength between the extension part 2 and the main body 1, improving the mounting reliability of the extension part 2 for the battery 30, and reducing the weight of the extension part 2, thereby reducing the load of the vehicle 1000.

[0196] In some embodiments, please refer to Figure 5 or Figure 6 A second weight-reducing structure 21 and / or a second reinforcing structure 22 is provided on the extension portion 2.

[0197] Therefore, by providing the second weight-reducing structure 21, the weight of the extension part 2 is reduced, and the lightweight design of the extension part 2 is realized. The second weight-reducing structure 21 may include but is not limited to a weight-reducing hole, a weight-reducing groove, or a thinning process.

[0198] Therefore, by setting the second reinforcement structure 22, the structural strength of the extension part 2 is enhanced, and the deformation problem of the extension part 2 is improved. The second reinforcement structure 22 may include but is not limited to reinforcement ribs, strip reinforcement protrusions, or local thickening of the extension part 2, and when the first reinforcement structure 614 is set as reinforcement ribs, the structural form of the reinforcement ribs is not limited, for example, it can be a straight line, a curve, or a cross shape, etc.

[0199] In addition, when the second weight-reducing structure 21 and the second reinforcing structure 22 are simultaneously provided on the extension part 2, the weight of the extension part 2 increases due to the provision of the second reinforcing structure 22, and the weight can be reduced by providing the second weight-reducing structure 21. In this way, both the reliability and lightness of the extension part 2 can be taken into account.

[0200] Second, please refer to Figure 3 and Figure 4 An embodiment of the present application provides a frame assembly 100, comprising: a vehicle beam 20 and a battery mounting frame 10 of any of the above-mentioned embodiments, the vehicle beam 20 comprising two longitudinal beams 201 extending along a first direction X and spaced apart along a second direction Y, a frame body 10a being mounted to the vehicle beam 20, and a docking structure 6 being located between the two longitudinal beams 201.

[0201] It is worth noting that the specific structure of the beam 20 according to the embodiment of the present application is not limited, for example Figure 3 As shown, the vehicle beam 20 may include two longitudinal beams 201 extending in the length direction of the vehicle and at least one cross beam 202 extending in the width direction of the vehicle, the two longitudinal beams 201 are arranged at intervals in the width direction of the vehicle, and the cross beam 202 is connected between the two longitudinal beams 201. Since the vehicle beam 20 includes two longitudinal beams 201 extending in the first direction X and arranged at intervals in the second direction Y, the second direction Y can be set to be orthogonal to the first direction X.

[0202] Thus, the docking structure 6 is located between the two longitudinal beams 201, and the two longitudinal beams 201 can be used to protect the docking structure 6 to a certain extent, thereby reducing damage to the docking structure 6, which is conducive to extending the service life of the docking structure 6, and making the docking structure 6 fully utilize the space between the two longitudinal beams 201 to improve space utilization, and facilitate reducing the volume of the battery mounting frame 10, thereby increasing the capacity of the battery 30. Moreover, the portion of the docking structure 6 located between the two longitudinal beams 201 can obtain the protection of the two longitudinal beams 201 to reduce the probability of the docking structure 6 being damaged by collision, improve the problem of the docking structure 6 being corroded and failed by mud and water, improve the reliability and stability of the docking, and reduce the risk of electrical failure of the docking structure 6 caused by mud and splashing water erosion. Moreover, the docking structure 6 does not need to occupy space outside the vehicle beam 20, and will not interfere with the cooperation of the battery mounting frame 10 with the vehicle beam 20 and the battery 30.

[0203] In some embodiments, the docking interface of the docking structure 6 is higher than the bottom surface of the longitudinal beam 201 and is arranged downward.

[0204] Therefore, since the docking interface of the docking structure 6 is higher than the bottom surface of the longitudinal beam 201, the height of the docking interface of the docking structure 6 is relatively large from the ground, which can obtain better protection, and the height setting of the docking interface of the docking structure 6 is conducive to saving space, so as to increase the height dimension of the battery 30 so that at least part of the battery 30 can extend between the two longitudinal beams 201, improve the compactness of the battery mounting frame 10 and the battery 30, make full use of the space, and increase the size and dimensional energy density of the battery. Moreover, by setting the docking interface downward, the battery 30 can be docked with the docking structure 6 while being mounted from bottom to top, thereby improving the efficiency of battery replacement.

[0205] In this way, the docking direction of the battery 30 when docking with the vehicle 1000 is arranged along the height direction of the vehicle 1000, and because the battery 30 is mounted on the vehicle 1000, the battery replacement movement direction of the battery 30 is also arranged along the height direction of the vehicle 1000, so that the docking direction of the battery 30 can coincide with the battery replacement movement direction, and there is no need to set up additional docking space in the length or width direction of the vehicle 1000 to improve space utilization, and the battery 30 can be mounted and docked in the same direction, thereby improving the battery replacement efficiency.

[0206] In a third aspect, an embodiment of the present application provides a vehicle 1000, including a battery 30 and a frame assembly 100 of any of the above embodiments, wherein the battery 30 is mounted on a mounting structure 3 and docked with a docking structure 6. It is worth noting that the sum of the other parts of the vehicle 1000 except the battery 30 and the battery mounting frame 10 can be understood as a vehicle body 101, and the vehicle beam 20 is a part of the vehicle body 101.

[0207] Therefore, by setting up the frame assembly 100, the battery 30 can be mounted by utilizing the mounting structure 3, and the battery 30 is connected to the vehicle body 101 through the docking structure 6 to form a circuit and / or fluid circuit to meet the docking requirements of the circuit and / or fluid circuit of the battery 30 and the vehicle body 101, thereby simplifying the structural design of the docking point between the vehicle body 101 and the battery 30, wherein the mounting structure 3 and the docking structure 6 are integrated into the frame body 10a so that the positions of the two are consistent with the reference datum, thereby improving the battery replacement efficiency and battery replacement success rate of the battery 30.

[0208] In some embodiments, please refer to Figure 8 , Figure 8 Schematic diagram of the structure of the battery 30 according to some embodiments of the present application.

[0209] The battery 30 includes two battery side portions 30a and a battery central portion 30b. In the width direction of the vehicle beam 20, the two battery side portions 30a are respectively located on both sides of the battery central portion 30b, and the top surface of the battery central portion 30b is lower than the top surface of the battery side portions 30a, so as to form a clearance groove 30c that runs through the length direction of the vehicle beam 20 and has an open top between the two battery side portions 30a and the battery central portion 30b for avoiding the vehicle beam 20. The battery side portions 30a are detachably connected to the mounting structure 3, and the top of the battery central portion 30b has a docking portion 30d that docks with the docking structure 6.

[0210] Thus, by setting the top surface of the battery center portion 30b lower than the top surface of the battery side portion 30a, a clearance groove 30c is formed between the two battery side portions 30a and the battery center portion 30b. In this way, when the battery 30 is actually installed, the clearance groove 30c can be used to avoid the vehicle beam 20 to avoid interference between the battery 30 and the vehicle beam 20, and the battery 30 is fully utilized to set the battery 30 on both sides of the width of the vehicle beam 20, so that the overall size of the battery 30 can be increased to improve the size energy density of the battery 30.

[0211] The battery side portion 30a is detachably connected to the mounting structure 3, and the top of the battery central portion 30b has a docking portion 30d, so that the docking structure 6 and the mounting structure 3 can also be dispersed, thereby avoiding the concentration of the connection position, which is conducive to reducing the difficulty of assembly and facilitating the satisfaction of mounting and docking requirements. In addition, when the battery side portions 30a on both sides are connected to the mounting structure 3, the mounting reliability and stability of the battery 30 can be improved.

[0212] It is worth noting that the docking part 30d is arranged at the top of the central part 30b of the battery, so that when the battery 30 moves from bottom to top along the height direction of the vehicle 1000, the docking part 30d of the battery 30 can be easily docked with the docking structure 6 between the two longitudinal beams 201, which is beneficial to reduce the difficulty of battery replacement operation, improve the battery replacement efficiency, and save the space required for battery replacement operation.

[0213] For example Figure 3 As shown, in the width direction of the beam 20 (such as Figure 3 When the extension portions 2 are provided on both sides of the second direction Y) shown in FIG. 1 and the battery 30 is installed on the vehicle beam 20, at least a portion of the vehicle beam 20 is located in the make way groove 30c and above the battery central portion 30b, and the two battery side portions 30a can be respectively mounted in the battery mounting spaces 4 on both sides in the width direction of the vehicle beam 20, so that the space in the width direction of the vehicle beam 20 can be fully utilized to arrange a battery 30 of a larger size.

[0214] Furthermore, when the docking interface of the docking structure 6 is set downward, the battery 30 can be docked with the docking structure 6 while being mounted on the mounting structure 3 from bottom to top. In this way, the docking space when the battery 30 is docked with the vehicle 1000 is arranged along the height direction of the vehicle 1000, and because the battery 30 is mounted on the vehicle 1000, the battery replacement moving space of the battery 30 is also arranged along the height direction of the vehicle 1000, so that the docking direction of the battery 30 can coincide with the battery replacement moving direction, and there is no need to set up an additional docking space in the length or width direction of the vehicle 1000, so as to improve space utilization, and the battery 30 battery replacement and battery 30 docking can be carried out simultaneously, thereby improving the battery replacement efficiency.

[0215] The connection method between the battery side portion 30a and the mounting structure 3 includes but is not limited to: bolt connection, or snap connection, or plug connection, or magnetic attraction, etc. In addition, the battery side portion 30a can be connected to the mounting structure 3 at the upper part, the middle part, or the lower part. For example, the upper end of the battery side portion 30a can be set higher than the bottom surface of the vehicle beam 20, and the lower end of the battery side portion 30a can be set lower than the bottom surface of the vehicle beam 20, so that the space on both sides of the width of the vehicle beam 20 can be fully utilized.

[0216] 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.

[0217] 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.

[0218] In some embodiments, the operating voltage range of the battery replacement system is: 400V~750V.

[0219] 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.

[0220] In some embodiments, the dimensional tolerance of the battery replacement system is within ±10 mm.

[0221] 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.

[0222] In some embodiments, Figure 9-10 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 11-Figure 12 Logo.

[0223] In some embodiments, reference Figure 9-12 , a safety gap L0 is reserved between the front and rear end surfaces of the battery swap system and the entire vehicle, L0 ≥ 50mm.

[0224] In some embodiments, reference Figure 9-12 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.

[0225] In some embodiments, reference Figure 9-12 The dimension W of the battery replacement system along the vehicle width direction satisfies: 2300mm≤W≤2550mm.

[0226] In some embodiments, reference Figure 9-12 The total height H of the battery replacement system satisfies: H≤680mm.

[0227] In some embodiments, reference Figure 9-12 The length dimension L1 of the upper boss of the battery replacement system (such as the upper part of the battery) satisfies: 600mm≤L1≤700mm.

[0228] In some embodiments, reference Figure 9-12 The width dimension W1 of the bosses on both sides of the upper layer of the battery replacement system (such as the upper part of the battery on the battery side 30a) satisfies: W1≤805mm.

[0229] In some embodiments, reference Figure 9-12 The width dimension W2 of the upper middle boss of the battery replacement system (such as the upper part of the battery in the central part 30a of the battery) satisfies: W2≤640mm.

[0230] In some embodiments, reference Figure 9-12 The height dimension H1 of the bosses on both sides of the upper layer of the battery replacement system (such as the upper part of the battery side 30a) satisfies: H1≤300mm.

[0231] In some embodiments, reference Figure 9-12 The height dimension H2 of the upper middle boss of the battery replacement system (such as the upper part of the battery in the central part 30a of the battery) satisfies: H2≤150mm.

[0232] 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.

[0233] 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.

[0234] 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.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] In some embodiments, reference Fig.13 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.

[0239] In some embodiments, reference Fig.13 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.

[0240] In some embodiments, reference Fig.13 In the width direction of the vehicle (such as the second direction Y), the minimum width between the two second main body walls 12 (or the width of the avoidance opening 15) is N2, and satisfies: 660mm≤N2≤680mm.

[0241] In some embodiments, reference Fig.14In 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).

[0242] 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: include: A frame body, the frame body being suitable for being mounted on a vehicle body; A mounting structure, which is integrated on the frame body and is used to mount a battery; A docking structure is also integrated on the frame body and is used to connect the vehicle body and dock the battery so that the battery and the vehicle body form an electrical circuit and / or a fluid path connection.

2. The battery mounting rack according to claim 1, characterized in that: The frame body comprises: A main body, the main body is suitable for being mounted on the vehicle body, and the docking structure is provided on the main body; An extension portion, one end of which is connected to the main body portion, and the other end of which extends in a direction away from the main body portion, and the mounting structure is arranged on the extension portion.

3. The battery mounting rack according to claim 2, characterized in that: The main body comprises a beam avoidance groove, the beam avoidance groove has an opening penetrating along a first direction, and the docking structure is located in the beam avoidance groove.

4. The battery mounting rack according to claim 3, characterized in that: The main body portion includes a plurality of first main body walls spaced apart along the first direction, an escape opening is formed between two adjacent first main body walls, and the docking interface of the docking structure is higher than the first main body wall and is arranged corresponding to the escape opening.

5. The battery mounting rack according to claim 4, characterized in that: The docking structure includes a load-bearing frame and a docking device, the load-bearing frame includes a load-bearing portion and a leg portion, the docking device is arranged on the load-bearing portion, and the leg portion extends from both ends of the load-bearing portion in the first direction toward the first main body wall and is connected to the first main body wall.

6. The battery mounting rack according to claim 5, characterized in that: The bearing portion has a first weight-reducing structure, and / or a first reinforcement structure is provided at a connection between the leg portion and the bearing portion.

7. The battery mounting rack according to claim 5 or 6, characterized in that: The supporting frame is an integrally formed part and is assembled and connected with the first main body wall.

8. The battery mounting rack according to any one of claims 4 to 7, characterized in that: The avoidance openings are multiple and spaced apart along the first direction, and each of the avoidance openings is correspondingly provided with the docking structure.

9. The battery mounting rack according to any one of claims 4 to 8, characterized in that: The main body portion includes a second main body wall extending along the first direction, wherein there are two second main body walls and the second main body walls are spaced apart from each other along a second direction intersecting the first direction, and the two second main body walls are connected at both ends of each first main body wall in the second direction to form the vehicle beam avoidance groove with an open top between the first main body wall and the second main body wall, and 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.

10. The battery mounting rack according to any one of claims 2 to 9, characterized in that: A plurality of the extension parts are arranged at intervals along a first direction on one side of the main body, and a battery mounting space is defined between two adjacent extension parts.

11. The battery mounting rack according to claim 10, characterized in that: One side of the main body is provided with a plurality of battery mounting spaces spaced apart along the first direction, the docking structures are multiple and spaced apart along the first direction, and the plurality of docking structures and the plurality of battery mounting spaces are arranged opposite to each other along a second direction intersecting the first direction.

12. The battery mounting rack according to claim 10 or 11, characterized in that: The mounting structure is arranged on a side of the extending portion facing the battery mounting space.

13. The battery mounting rack according to claim 12, characterized in that: At least one of the extension portions located in the middle among the multiple extension portions arranged along the first direction is a common extension portion, and the common extension portion has the battery mounting space on both sides of the length direction of the main body, and the mounting structures are 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 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 12 to 14, characterized in that: The mounting structures are 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 orthographic projections of the mounting structures on both sides of the battery mounting space on a projection plane perpendicular to the first direction are misaligned.

17. The battery mounting rack according to any one of claims 12 to 16, characterized in that: A plurality of the mounting structures are provided on one side of the extension portion facing the battery mounting space, and at least two of the mounting structures are spaced apart along the length direction of the extension portion.

18. The battery mounting rack according to any one of claims 12 to 17, characterized in that: The extension portion includes a mounting edge protruding toward the battery mounting space, and the mounting structure is located on the mounting edge.

19. The battery mounting rack according to claim 18, characterized in that: The mounting edge is located at the lower edge of the extending portion in the height direction.

20. The battery mounting rack according to claim 18 or 19, characterized in that: The length direction of the mounting edge is the same as the extension direction of the extension portion; wherein, the mounting edge is provided with a plurality of mounting structures arranged at intervals along the length direction of the mounting edge, or the mounting structure on the mounting edge is configured as one and extends along the length direction of the mounting edge.

21. The battery mounting rack according to any one of claims 11 to 20, characterized in that: The battery mounting frame further includes a reinforcing portion, and the reinforcing portion is used to connect at least two of the extending portions located on the same side of the main body portion.

22. The battery mounting rack according to any one of claims 10 to 21, characterized in that: The extension portions are respectively arranged at both sides of the main body in a second direction intersecting the first direction.

23. The battery mounting rack according to claim 22, characterized in that: The extending directions of the extending portions on both sides of the main body in the second direction are the same, and the orthographic projections of the projections of the extending portions on both sides of the main body in the second direction along the extending direction coincide with each other.

24. The battery mounting rack according to any one of claims 2 to 23, characterized in that: The height of the extension portion decreases along a direction away from the main body portion.

25. The battery mounting rack according to claim 24, characterized in that: The mounting structure is located at the lower edge of the extension portion, 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.

26. The battery mounting rack according to any one of claims 2 to 25, characterized in that: The extension portion is provided with a second weight-reducing structure and / or a second reinforcement structure.

27. A frame assembly, characterized in that: include: A vehicle beam, the vehicle beam comprising two longitudinal beams extending in a first direction and spaced apart in a second direction; The battery mounting rack as described in any one of claims 1-26, wherein the rack body is mounted to the vehicle beam, and the docking structure is located between the two longitudinal beams.

28. The frame assembly according to claim 27, characterized in that The docking interface of the docking structure is higher than the bottom surface of the longitudinal beam and is arranged downward.

29. A vehicle, characterized in that: It comprises a battery and a frame assembly as claimed in claim 27 or 28, wherein the battery is mounted on the mounting structure and docked with the docking structure.

30. The vehicle according to claim 29, characterized in that The battery includes two battery side portions and a battery central portion. In the width direction of the vehicle beam, 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 vehicle beam and has an open top for avoiding the vehicle beam between the two battery side portions and the battery central portion. The battery side portions are detachably connected to the mounting structure, and the top of the battery central portion has a docking portion that docks with the docking structure.

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