Vehicle body and vehicle

Abstract

The invention provides a vehicle body and a vehicle, the vehicle body comprises a main frame, a battery, a floor, a first sealing piece and a second sealing piece, the battery comprises a battery monomer and an outer frame installed on the main frame, the outer frame is provided with a containing cavity used for containing the battery monomer, the floor covers the outer frame to block the containing cavity, the first sealing piece is annularly arranged in the containing cavity, and the second sealing piece is arranged in the containing cavity. One part of the floor is matched with the outer frame to clamp the first sealing piece to form a first sealing interface, the second sealing piece is annularly arranged in the containing cavity, the other part of the floor is matched with the outer frame to clamp the second sealing piece to form a second sealing interface, and an included angle is formed between the first sealing interface and the second sealing interface. According to the vehicle body, the included angle is formed between the first sealing interface and the second sealing interface, that is, the sealing direction of the first sealing interface is different from that of the second sealing interface, so that the risk of sealing failure between the outer frame and the floor due to vibration of the vehicle body is effectively reduced; and the sealing performance of the battery is effectively improved.

Description

Technical Field

[0001] This application belongs to the technical field of automobiles, and more specifically, relates to a vehicle body and a vehicle. Background Art

[0002] With the rapid development of new energy technologies, electric vehicles are increasingly favored by people. An electric vehicle includes a vehicle body, and the vehicle body includes a main frame and a battery. In order to improve the structural strength of the vehicle body and the energy density of the battery, the main frame and the battery usually adopt an integrated design. However, this will lead to a decline in the sealing performance of the battery, which is not conducive to improving the safety performance of electric vehicles. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a vehicle body and a vehicle to solve the technical problem of poor sealing performance of the battery in the related art.

[0004] To achieve the above purpose, the technical solution adopted in the embodiments of this application is: to provide a vehicle body, including:

[0005] A main frame;

[0006] A battery, including battery cells and an outer frame installed on the main frame, the outer frame having a cavity for accommodating the battery cells;

[0007] A floor, covering the outer frame to seal the cavity;

[0008] A first seal, provided around the cavity, and a part of the floor cooperates with the outer frame to clamp the first seal to form a first sealing interface;

[0009] A second seal, provided around the cavity, and another part of the floor cooperates with the outer frame to clamp the second seal to form a second sealing interface;

[0010] Wherein, the first sealing interface and the second sealing interface are arranged at an angle to each other.

[0011] The vehicle body provided by the embodiments of this application has at least the following beneficial effects: In the vehicle body provided by the embodiments of this application, a part of the floor cooperates with the outer frame to clamp the first seal to form a first sealing interface, and another part of the floor cooperates with the outer frame to clamp the second seal to form a second sealing interface. The first sealing interface and the second sealing interface are arranged at an angle to each other, that is, the sealing direction of the first sealing interface is not the same as the sealing direction of the second sealing interface. In this way, when the vehicle body vibrates in a direction perpendicular to the first sealing interface, the second seal can be relied on to seal the gap between the outer frame and the floor. When the vehicle body vibrates in a direction perpendicular to the second sealing interface, the first seal can be relied on to seal the gap between the outer frame and the floor. Thus, the risk of seal failure between the outer frame and the floor due to the vibration of the vehicle body is effectively reduced, and the sealing performance of the battery is effectively improved.

[0012] In some embodiments of the present application, the floor includes a plate body covering the outer frame and a bent portion surrounding the plate body. The outer frame has a first pressing surface and a second pressing surface that form an included angle with each other. The plate body cooperates with the first pressing surface to clamp a first sealing member to form a first sealing interface, and the bent portion cooperates with the second pressing surface to clamp a second sealing member to form a second sealing interface.

[0013] By adopting the above technical solution, it is convenient to form a first sealing interface and a second sealing interface between the outer frame and the floor.

[0014] In some embodiments of the present application, the first pressing surface is perpendicular to the height direction of the vehicle body.

[0015] By adopting the above technical solution, it is not only convenient to assemble the outer frame and the floor, but also easier to control the compression amount of the first sealing member. When the vehicle body does not vibrate in the height direction, the first sealing member can effectively block the gap between the outer frame and the plate body, effectively improving the sealing performance of the battery. When the vehicle body vibrates in the height direction, the second sealing member can be relied on to block the gap between the outer frame and the floor, thereby effectively reducing the risk of sealing failure between the outer frame and the floor due to the vibration of the vehicle body, and further improving the sealing performance of the battery.

[0016] In some embodiments of the present application, the included angle formed by the first pressing surface and the second pressing surface is an obtuse angle.

[0017] By adopting the above technical solution, it is convenient to cover the floor on the outer frame and make the bent portion cooperate with the second pressing surface to clamp the second sealing member.

[0018] In some embodiments of the present application, the angle of the included angle formed by the first pressing surface and the second pressing surface is 95° - 120°.

[0019] By adopting the above technical solution, it is not only convenient to cover the floor on the outer frame, but also can improve the situation where the compression amount of the second sealing member changes when the vehicle body vibrates in the height direction, thereby reducing the risk of sealing failure between the outer frame and the floor due to the vibration of the vehicle body.

[0020] In some embodiments of the present application, the included angle formed by the first pressing surface and the second pressing surface is a right angle.

[0021] By adopting the above technical solution, when the vehicle body vibrates in the height direction, the compression amount of the first seal will change greatly, while the compression amount of the second seal will hardly change. Therefore, the second seal can be relied on to block the gap between the outer frame and the floor. When the vehicle body vibrates in a direction perpendicular to its height direction, the compression amount of the second seal will change greatly, while the compression amount of the first seal will hardly change. Therefore, the first seal can be relied on to block the gap between the outer frame and the floor, thereby effectively reducing the risk of seal failure between the outer frame and the floor due to the vibration of the vehicle body and effectively improving the sealing performance of the battery.

[0022] In some embodiments of the present application, the plate body has a third pressing surface opposite to the first pressing surface, the third pressing surface is parallel to the first pressing surface and cooperates with the first pressing surface to clamp the first seal; and / or, the bending part has a fourth pressing surface opposite to the second pressing surface, the fourth pressing surface is parallel to the second pressing surface and cooperates with the second pressing surface to clamp the second seal.

[0023] By adopting the above technical solution, the extrusion force exerted on the first seal by the plate body and the outer frame together and the extrusion force exerted on the second seal by the bending part and the outer frame together are effectively increased, thereby effectively increasing the compression amounts of the first seal and the second seal, further reducing the risk of seal failure between the outer frame and the floor due to the vibration of the vehicle body, and further improving the sealing performance of the battery.

[0024] In some embodiments of the present application, the floor further includes a first connecting part, and the first connecting part is connected between the plate body and the main frame.

[0025] By adopting the above technical solution, under the support of the main frame, the extrusion force exerted by the plate body on the first seal is effectively increased, thereby effectively increasing the compression amount of the first seal, further reducing the risk of seal failure between the outer frame and the floor due to the vibration of the vehicle body, and further improving the sealing performance of the battery.

[0026] In some embodiments of the present application, the first connecting part is looped around the plate body, the inner ring side of the first connecting part is connected to the plate body, and the outer ring side of the first connecting part is connected to the main frame.

[0027] By adopting the above technical solution, the gap between the plate body and the main frame is effectively blocked, thereby effectively isolating the cavity of the outer frame from the external environment of the main frame and further improving the sealing performance of the battery.

[0028] In some embodiments of the present application, the floor further includes a second connecting part, and the second connecting part is connected between the bending part and the main frame.

[0029] By adopting the above technical solution, under the supporting action of the main frame, the extrusion force exerted by the bent portion on the second seal is effectively increased, thereby effectively increasing the compression amount of the second seal, further reducing the risk of seal failure between the outer frame and the floor caused by vehicle body vibration, and further improving the sealing performance of the battery.

[0030] In some embodiments of the present application, the second connecting portion is disposed around the bent portion. The inner ring side of the second connecting portion is connected to the bent portion, and the outer ring side of the second connecting portion is connected to the main frame.

[0031] By adopting the above technical solution, the gap between the bent portion and the main frame is effectively blocked, thereby effectively isolating the cavity of the outer frame from the external environment of the outer frame, and further improving the sealing performance of the battery.

[0032] In some embodiments of the present application, the first seal is disposed at the top of the outer frame; and / or, the second seal is disposed on the side of the outer frame facing away from the cavity.

[0033] By adopting the above technical solution, the sealing structure between the outer frame and the floor does not need to occupy the internal space of the cavity of the outer frame, effectively improving the space utilization rate of the cavity of the outer frame, and thus effectively improving the volume energy density of the battery.

[0034] In some embodiments of the present application, the outer frame or the floor is provided with a first limiting groove, and at least a part of the first seal is received in the first limiting groove.

[0035] By adopting the above technical solution, the position of the first seal is effectively limited to improve the situation of displacement of the first seal when the vehicle body vibrates, thereby further reducing the risk of seal failure between the outer frame and the floor caused by vehicle body vibration, and further improving the sealing performance of the battery.

[0036] In some embodiments of the present application, the outer frame or the floor is provided with a second limiting groove, and at least a part of the second seal is received in the second limiting groove.

[0037] By adopting the above technical solution, the position of the second seal is effectively limited to improve the situation of displacement of the second seal when the vehicle body vibrates, thereby further reducing the risk of seal failure between the outer frame and the floor caused by vehicle body vibration, and further improving the sealing performance of the battery.

[0038] In some embodiments of the present application, the vehicle body further includes a third seal disposed around the cavity, and the main frame and the outer frame cooperate to clamp the third seal to form a third sealing interface.

[0039] By adopting the above technical solution, the gap between the outer frame and the main frame is effectively blocked, so that the cavity of the outer frame is effectively isolated from the external environment of the main frame, further improving the sealing performance of the battery.

[0040] In some embodiments of the present application, the third sealing interface is parallel to the first sealing interface.

[0041] By adopting the above technical solution, when the vehicle body vibrates in a direction perpendicular to the first sealing interface, the second seal can be relied on to block the gap between the outer frame and the floor. When the vehicle body vibrates in a direction perpendicular to the second sealing interface, not only can the first seal be relied on to block the gap between the outer frame and the floor, but also the third seal can be relied on to block the gap between the outer frame and the main frame, thereby further reducing the risk of seal failure between the outer frame and the floor and between the outer frame and the main frame due to the vibration of the vehicle body, and further improving the sealing performance of the battery.

[0042] In some embodiments of the present application, a third limiting groove is provided on the outer frame or the main frame, and at least part of the third seal is received in the third limiting groove.

[0043] By adopting the above technical solution, the position of the third seal is effectively limited to improve the situation of displacement of the third seal when the vehicle body vibrates, thereby effectively reducing the risk of seal failure between the outer frame and the main frame due to the vibration of the vehicle body, and further improving the sealing performance of the battery.

[0044] In some embodiments of the present application, the outer frame includes a frame body and a mounting seat connected to the frame body. The frame body has a cavity. The mounting seat is mounted on the main frame. A part of the floor cooperates with the frame body to clamp the first seal to form a first sealing interface, another part of the floor cooperates with the frame body to clamp the second seal to form a second sealing interface, and the main frame cooperates with the mounting seat to clamp the third seal to form a third sealing interface.

[0045] By adopting the above technical solution, it is not only convenient to form the first sealing interface and the second sealing interface between the outer frame and the floor, but also convenient to form the third sealing interface between the outer frame and the main frame.

[0046] The embodiment of the present application also provides a vehicle, including the vehicle body described in any one of the above embodiments.

[0047] The vehicle provided by the embodiment of the present application has at least the following beneficial effects: Since the vehicle provided by the embodiment of the present application adopts the vehicle body described in any one of the above embodiments, the safety performance of the vehicle is effectively improved. Description of the Drawings

[0048] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for describing the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0049] Figure 1 Structural schematic diagram of the vehicle body provided by the embodiment of the present application;

[0050] Figure 2 is Figure 1 Bottom view structural schematic diagram of the vehicle body shown;

[0051] Figure 3 is Figure 2 Cross-sectional structural schematic of the vehicle body shown along the line A-A Figure 1 ;

[0052] Figure 4 is Figure 3 Enlarged structural schematic diagram of the B position of the vehicle body shown;

[0053] Figure 5 is Figure 2 Cross-sectional structural schematic of the vehicle body shown along the line A-A Figure 2 ;

[0054] Figure 6 is Figure 5 Enlarged structural schematic diagram of the C position of the vehicle body shown;

[0055] Figure 7 is Figure 2 Cross-sectional structural schematic of the vehicle body shown along the line A-A Figure 3 ;

[0056] Figure 8 is Figure 7 Enlarged structural schematic diagram of the D position of the vehicle body shown.

[0057] Among them, the reference numerals in the figure:

[0058] 1000, vehicle body;

[0059] 100, main frame;

[0060] 200, battery; 210, outer frame; 211, cavity; 212, first pressing surface; 213, second pressing surface; 214, fifth pressing surface; 215, frame body; 216, mounting seat; 217, first limiting groove; 218, second limiting groove; 219, third limiting groove; 220, protective plate;

[0061] 300, Floor; 310, Plate body; 311, Third pressing surface; 320, Bending part; 321, Fourth pressing surface; 330, First connecting part; 340, Second connecting part;

[0062] 400, First seal; 410, First sealing interface;

[0063] 500, Second seal; 510, Second sealing interface;

[0064] 600, Third seal; 610, Third sealing interface;

[0065] 700, Front frame;

[0066] 800, Rear frame. Detailed implementation mode

[0067] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in combination with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0068] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0069] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0070] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0071] An electric vehicle refers to a vehicle that relies on electric energy as the power source under all working conditions or some working conditions. The electric vehicle includes a body, and the body includes a main frame, a battery, and a floor. The main frame is the main component of the body and plays a role in supporting and strengthening the entire body. The battery usually includes battery cells and an outer frame. Among them, the battery cell is the smallest unit that makes up the battery, and the outer frame is installed on the main frame. The outer frame has a cavity, and the battery cells are accommodated in the cavity. The floor is installed on the main frame and is used to provide an installation environment for the components arranged in the cockpit of the electric vehicle. The floor also plays a role in supporting the above components and the driver and passengers.

[0072] In the related art, in order to improve the structural strength of the body and the energy density of the battery, the floor is usually used as the cover of the battery to cover the outer frame to block the cavity of the outer frame, so as to realize the integrated design of the body. At the same time, in order to improve the sealing performance of the battery, a seal is usually provided between the outer frame and the floor to block the gap between the outer frame and the floor. However, during the driving of the electric vehicle, the body is prone to vibration. When the vibration direction of the body is the same as or roughly the same as the assembly direction of the outer frame and the floor, the outer frame and the floor will move relative to each other with the vibration of the body, resulting in a large change in the compression amount of the seal, which easily leads to seal failure between the outer frame and the floor, thereby causing a significant decrease in the sealing performance of the battery.

[0073] In order to improve the sealing performance of the battery in the electric vehicle, a part of the floor in the body provided by the embodiment of the present application cooperates with the outer frame to clamp a first seal to form a first sealing interface, and another part of the floor cooperates with the outer frame to clamp a second seal to form a second sealing interface. The first sealing interface and the second sealing interface are arranged at an angle to each other, that is, the sealing direction of the first sealing interface is not the same as the sealing direction of the second sealing interface. In this way, when the body vibrates in a direction perpendicular to the first sealing interface, the second seal can be relied on to block the gap between the outer frame and the floor. When the body vibrates in a direction perpendicular to the second sealing interface, the first seal can be relied on to block the gap between the outer frame and the floor, thereby effectively reducing the risk of seal failure between the outer frame and the floor due to the vibration of the body and effectively improving the sealing performance of the battery.

[0074] The vehicle disclosed in the embodiments of the present application can be a fuel vehicle, a gas vehicle, or a new energy vehicle. Among them, the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, an extended-range vehicle, etc. The vehicle includes a body, which is the main supporting component of the vehicle. In some embodiments, the body can be an integrated body. The body has an engine compartment and a passenger compartment. Among them, the engine compartment is used to accommodate the power device, transmission device, cooling device, etc. of the vehicle, and the passenger compartment is used to provide an operating space and a seating space for the driver and passengers. When the vehicle is a front-wheel drive vehicle, the engine compartment is arranged at the front of the body, that is, the engine compartment is a front engine compartment; when the vehicle is a rear-wheel drive vehicle, the engine compartment is arranged at the rear of the body, that is, the engine compartment is a rear engine compartment; when the vehicle is a four-wheel drive vehicle, the engine compartment is divided into a front engine compartment and a rear engine compartment. The front engine compartment is arranged at the front of the body, and the rear engine compartment is arranged at the rear of the body. The passenger compartment is arranged between the front and rear of the body.

[0075] The following describes the body provided in the embodiments of the present application with reference to the accompanying drawings.

[0076] In the first aspect, please refer to Figures 1 to 8 together. The embodiments of the present application provide a body 1000, including a main frame 100, a battery 200, a floor 300, a first seal 400, and a second seal 500. The battery 200 includes battery cells (not shown in the figure) and an outer frame 210 mounted on the main frame 100. The outer frame 210 has a cavity 211 for accommodating the battery cells. The floor 300 covers the outer frame 210 to block the cavity 211. The first seal 400 is disposed around the cavity 211, and a part of the floor 300 and the outer frame 210 cooperate to clamp the first seal 400 to form a first sealing interface 410. The second seal 500 is disposed around the cavity 211, and another part of the floor 300 and the outer frame 210 cooperate to clamp the second seal 500 to form a second sealing interface 510. Among them, the first sealing interface 410 and the second sealing interface 510 are arranged at an angle to each other.

[0077] For the convenience of description below, the direction parallel to the axial direction of the vehicle's wheels is defined as the width direction of the body 1000. It should be noted that the above axial direction refers to the axial direction of the wheels when the vehicle is driving along any straight line, such as Figures 1 to 8 the Y direction shown, and the direction perpendicular to the above axial direction and parallel to the support plane of the vehicle is defined as the length direction of the body 1000. It should be noted that the above support plane refers to the plane that is tangent to the side wheel surfaces of all the wheels of the vehicle facing away from the body 1000 when the vehicle is in a driving state or a stationary state, such as Figure 1 and Figure 2 the X direction shown, and the direction perpendicular to the above width direction and the above length direction is defined as the height direction of the body 1000, such as Figure 1 and Figures 3 to 8The Z direction shown. The two sides of the vehicle body 1000 along its width direction are the left side and the right side of the vehicle body 1000, the two sides of the vehicle body 1000 along its length direction are the front side and the rear side of the vehicle body 1000, and the two sides of the vehicle body 1000 along its height direction are the bottom and the top of the vehicle body 1000. Among them, the bottom is the part of the vehicle body 1000 facing the above-mentioned supporting plane, and the top is the part of the vehicle body 1000 facing away from the above-mentioned supporting plane. Similarly, the two sides of the outer frame 210 along the height direction of the vehicle body 1000 are the bottom and the top of the outer frame 210. Among them, the bottom is the part of the outer frame 210 facing the above-mentioned supporting plane, and the top is the part of the outer frame 210 facing away from the above-mentioned supporting plane.

[0078] The main frame 100 is the main supporting component of the vehicle body 1000, which plays a role in supporting and strengthening the entire vehicle body 1000. The main frame 100 is made of rigid materials, and the rigid materials can be, but are not limited to, aluminum, aluminum alloy, iron, stainless steel, etc. In some embodiments, the main frame 100 includes a front beam body, a rear beam body, and two sill beams. The front beam body, one sill beam, the rear beam body, and the other sill beam are connected end to end to form the main frame 100. Among them, the front beam body and the rear beam body are arranged at intervals along the length direction of the vehicle body 1000. The front beam body and the rear beam body can be in a straight structure and extend along the width direction of the vehicle body 1000, or the front beam body and the rear beam body can be in a bent structure and extend in a zigzag manner along the width direction of the vehicle body 1000. One sill beam is arranged on the left side of the vehicle body 1000, and the other sill beam is arranged on the right side of the vehicle body 1000. In the height direction of the vehicle body 1000, the sill beam is located below the vehicle door. The two sill beams can be in a straight structure and extend along the length direction of the vehicle body 1000, or the two sill beams can be in a bent structure and extend in a zigzag manner along the length direction of the vehicle body 1000. In some embodiments, the front beam body, the rear beam body, and the two sill beams can be integrally formed components. For example, the front beam body, the rear beam body, and the two sill beams are integrally formed by die-casting process. In some other embodiments, the front beam body, the rear beam body, and the two sill beams can be separate components. For example, the front beam body, the rear beam body, and the two sill beams are separately formed and then connected to form a whole. In some embodiments, in order to reduce the weight of the vehicle body 1000, the front beam body, the rear beam body, and the two sill beams can be in a hollow structure, that is, cavities are formed inside the front beam body, inside the rear beam body, and inside the two sill beams.

[0079] In some embodiments, the vehicle body 1000 may further include a front frame 700 and a rear frame 800. The front frame 700 is arranged on the front side of the vehicle body 1000 and is connected to the side of the front beam body facing away from the rear beam body, and the rear frame 800 is arranged on the rear side of the vehicle body 1000 and is connected to the side of the rear beam body facing away from the front beam body.

[0080] The battery 200 can be installed on the main frame 100. For example, the battery 200 is installed at the bottom of the main frame 100. The battery 200 can be used for power supply of a vehicle. For example, the battery 200 can serve as the operating power source of the vehicle. The vehicle may further include a controller (not shown in the figure) and a motor (not shown in the figure). The controller is used to control the battery 200 to supply power to the motor. For example, it is used for the working power requirements during the start-up, navigation, and driving of the vehicle. In some embodiments, the battery 200 can not only serve as the operating power source of the vehicle, but also serve as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0081] A battery cell is the smallest storage unit for storing electric energy. There can be multiple battery cells, and multiple battery cells can be connected in series, parallel, or in a series-parallel combination. A series-parallel combination means that there are both series and parallel connections among multiple battery cells. Multiple battery cells can be directly connected in series, parallel, or in a series-parallel combination, and then the whole formed by multiple battery cells is placed in the cavity 211 of the outer frame 210. Of course, the battery 200 can also be that multiple battery cells are first connected in series, parallel, or in a series-parallel combination to form a battery module, and then multiple battery modules are connected in series, parallel, or in a series-parallel combination to form a whole and placed in the cavity 211 of the outer frame 210. The battery 200 may further include other functional components. For example, the battery 200 may further include a busbar component for realizing the electrical connection among multiple battery cells.

[0082] Among them, each battery cell can be a secondary battery or a primary battery. A secondary battery refers to a battery cell that can continue to be used after the active material is activated by charging after the battery cell discharges. A primary battery refers to a battery cell that cannot continue to be used after the electric energy of the battery cell is exhausted because the active material cannot be activated by charging. The battery cell can also be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium-metal battery, a sodium-metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., but is not limited thereto. The battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include square-shell battery cells, blade-shaped battery cells, multi-prismatic battery cells. The multi-prismatic battery cell is, for example, a hexagonal prism battery cell, etc. There is no special limitation in this application.

[0083] The outer frame 210 is used to provide an installation environment for the battery cells. The outer frame 210 is made of a rigid material, which can be, but is not limited to, aluminum, aluminum alloy, iron, stainless steel, etc. In some embodiments, the outer frame 210 includes two first support beams and two second support beams. One first support beam is disposed on the left side of the vehicle body 1000, and the other first support beam is disposed on the right side of the vehicle body 1000. The first support beam can be in a straight structure and extend along the length direction of the vehicle body 1000, or the first support beam can be in a bent structure and extend in a zigzag manner along the length direction of the vehicle body 1000. The two second support beams are arranged at intervals along the length direction of the vehicle body 1000. The second support beam can be in a straight structure and extend along the width direction of the vehicle body 1000, or the second support beam can be in a bent structure and extend in a zigzag manner along the width direction of the vehicle body 1000. One first support beam, one second support beam, the other first support beam, and the other second support beam are connected end to end to enclose the above-mentioned cavity 211. The two first support beams are respectively connected to the two sill beams in a one-to-one correspondence. One second support beam is connected to the above-mentioned front beam body, and the other second support beam is connected to the above-mentioned rear beam body to mount the outer frame 210 on the main frame 100. The connection manner between the outer frame 210 and the main frame 100 can be, but is not limited to, welding, fastening connection, etc. In some embodiments, the two first support beams and the two second support beams can be integrally formed members. For example, the two first support beams and the two second support beams are integrally formed by die-casting process. In other embodiments, the two first support beams and the two second support beams can be separate members. For example, the two first support beams and the two second support beams are separately formed and then connected to each other to form a whole. In some embodiments, in order to reduce the weight of the outer frame 210, the first support beam and the second support beam can be in a hollow structure, that is, cavities are formed inside the first support beam and the second support beam.

[0084] In some embodiments, the battery 200 further includes a protective plate 220. The floor 300 covers one side of the outer frame 210 along the height direction of the vehicle body 1000, and the protective plate 220 covers the other side of the outer frame 210 along the height direction of the vehicle body 1000. For example, the floor 300 covers the top of the outer frame 210, and the protective plate 220 covers the bottom of the outer frame 210 to isolate the cavity 211 of the outer frame 210 from the external environment of the battery 200. The protective plate 220 can be used as a heat exchange component of the battery 200 for performing heat exchange operations on the battery cells.

[0085] The floor 300 is used to provide an installation space for components arranged in the cockpit of a vehicle. For example, the seats of the vehicle are installed on the floor 300, and the floor 300 also serves to support the above-mentioned components and the driver and passengers. In this embodiment, the floor 300 is used as a cover of the battery 200 and is disposed on the outer frame 210 to block the cavity 211 of the outer frame 210, thereby realizing the integrated design of the vehicle body 1000. The floor 300 may or may not be connected to the outer frame 210. In some embodiments, the floor 300 is installed on the main frame 100. One side of the floor 300 in the width direction of the vehicle body 1000 is connected to one sill beam, and the other side of the floor 300 in the width direction of the vehicle body 1000 is connected to another sill beam. One side of the floor 300 in the length direction of the vehicle body 1000 is connected to the front beam body, and the other side of the floor 300 in the length direction of the vehicle body 1000 is connected to the rear beam body. The connection manner between the floor 300 and the main frame 100 may be, but is not limited to, welding, fastening connection, bonding, etc. The floor 300 is made of a rigid material, and the rigid material may be, but is not limited to, aluminum, aluminum alloy, iron, stainless steel, etc. In some embodiments, the floor 300 may be an integrally formed member. For example, the floor 300 is integrally formed by a die-casting process. In other embodiments, the floor 300 may be a split member. For example, the floor 300 includes multiple parts, and each part is formed separately and then connected to form a whole.

[0086] The first seal 400 and the second seal 500 are used to block the gap between the outer frame 210 and the floor 300. In some embodiments, the first seal 400 and the second seal 500 are in an annular structure and are disposed around the cavity 211. It can be understood that the first seal 400 and the second seal 500 are respectively arranged at different parts of the floor 300. A part of the floor 300 and the outer frame 210 cooperate to clamp the first seal 400 to form a first sealing interface 410, and another part of the floor 300 and the outer frame 210 cooperate to clamp the second seal 500 to form a second sealing interface 510. The first seal 400 and the second seal 500 may be made of a flexible material, and the flexible material may be, but is not limited to, rubber, silica gel, etc.

[0087] The first sealing interface 410 refers to the interface of the sealing part between a part of the floor 300 and the outer frame 210. The first sealing interface 410 may be a plane or a curved surface, which can be determined specifically according to the shape of the compressed part of the first seal 400. In some embodiments, the first sealing interface 410 is a plane, and the first sealing interface 410 is perpendicular to the direction of the extrusion force jointly exerted by the floor 300 and the outer frame 210 on the first seal 400. When the first seal 400 is in a clamped state, foreign objects cannot enter the cavity 211 of the outer frame 210 along the direction parallel to the first sealing interface 410.

[0088] The second sealing interface 510 refers to the interface at the seal between another part of the floor 300 and the outer frame 210. The second sealing interface 510 can be a flat surface or a curved surface, which can be specifically determined according to the shape of the pressure-bearing part of the second seal 500. In some embodiments, the second sealing interface 510 is a flat surface, and the second sealing interface 510 is perpendicular to the direction of the extrusion force jointly exerted by the floor 300 and the outer frame 210 on the second seal 500. When the second seal 500 is in a clamped state, foreign objects cannot enter the cavity 211 of the outer frame 210 in a direction parallel to the second sealing interface 510.

[0089] The first sealing interface 410 and the second sealing interface 510 are arranged at an angle to each other, that is, the first sealing interface 410 and the second sealing interface 510 are not parallel to each other, and the sealing directions of the first sealing interface 410 and the second sealing interface 510 are not the same. In other words, at least two sealing structures are provided between the floor 300 and the outer frame 210, and the sealing directions of at least two sealing structures are not the same.

[0090] In the vehicle body 1000 provided by the embodiment of the present application, a part of the floor 300 and the outer frame 210 cooperate to clamp the first seal 400 to form the first sealing interface 410, and another part of the floor 300 and the outer frame 210 cooperate to clamp the second seal 500 to form the second sealing interface 510. The first sealing interface 410 and the second sealing interface 510 are arranged at an angle to each other, that is, the sealing directions of the first sealing interface 410 and the second sealing interface 510 are not the same. In this way, when the vehicle body 1000 vibrates in a direction perpendicular to the first sealing interface 410, the second seal 500 can be relied on to block the gap between the outer frame 210 and the floor 300. When the vehicle body 1000 vibrates in a direction perpendicular to the second sealing interface 510, the first seal 400 can be relied on to block the gap between the outer frame 210 and the floor 300, thereby effectively reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and effectively improving the sealing performance of the battery 200.

[0091] In some embodiments of the present application, please also refer to Figures 3 to 8 , the floor 300 includes a plate body 310 covering the outer frame 210 and a bending part 320 surrounding the plate body 310. The outer frame 210 has a first pressing surface 212 and a second pressing surface 213 arranged at an angle to each other. The plate body 310 and the first pressing surface 212 cooperate to clamp the first seal 400 to form the first sealing interface 410, and the bending part 320 and the second pressing surface 213 cooperate to clamp the second seal 500 to form the second sealing interface 510.

[0092] The plate body 310 is the main part of the floor 300 and is used to seal the cavity 211 of the outer frame 210. The plate body 310 can be in a straight structure or a zigzag structure. The bending part 320 is a part formed by bending the plate body 310 in a preset direction, that is, the bending part 320 is arranged at an angle with the plate body 310. In some embodiments, the bending part 320 and the plate body 310 can be integrally formed components. For example, the bending part 320 and the plate body 310 are integrally formed by a stamping process. In other embodiments, the bending part 320 and the plate body 310 are separately formed and then connected to form a whole. The connection method between the bending part 320 and the plate body 310 can be but not limited to welding, fastening connection, bonding, etc.

[0093] The first pressing surface 212 is a part for supporting the first seal 400. The first pressing surface 212 can be a flat surface. When the floor 300 is covered on the outer frame 210, the first pressing surface 212 is arranged opposite to the plate body 310, and the first pressing surface 212 and the plate body 310 cooperate to clamp the first seal 400 to form the first sealing interface 410. The second pressing surface 213 is a part for supporting the second seal 500. The second pressing surface 213 can be a flat surface. When the floor 300 is covered on the outer frame 210, the second pressing surface 213 is arranged opposite to the bending part 320, and the second pressing surface 213 and the bending part 320 cooperate to clamp the second seal 500 to form the second sealing interface 510. The first pressing surface 212 and the second pressing surface 213 are arranged at an angle with each other. In other words, the first pressing surface 212 and the second pressing surface 213 are not parallel to each other, so that non-parallel first sealing interface 410 and second sealing interface 510 can be formed between the outer frame 210 and the floor 300.

[0094] In some embodiments, the first seal 400 includes two first seal bodies spaced apart in the width direction of the vehicle body 1000 and two second seal bodies spaced apart in the length direction of the vehicle body 1000. The second seal 500 includes two third seal bodies spaced apart in the width direction of the vehicle body 1000 and two fourth seal bodies spaced apart in the length direction of the vehicle body 1000. When the outer frame 210 includes two first support beams and two second support beams, both the two first support beams and the two second support beams are provided with a first pressing surface 212 and a second pressing surface 213. The first pressing surface 212 of one first support beam cooperates with the plate body 310 to clamp one first seal body, and the first pressing surface 212 of the other first support beam cooperates with the plate body 310 to clamp the other first seal body. The first pressing surface 212 of one second support beam cooperates with the plate body 310 to clamp one second seal body, and the first pressing surface 212 of the other second support beam cooperates with the plate body 310 to clamp the other second seal body. Similarly, the second pressing surface 213 of one first support beam cooperates with the bent portion 320 to clamp one third seal body, and the second pressing surface 213 of the other first support beam cooperates with the bent portion 320 to clamp the other third seal body. The second pressing surface 213 of one second support beam cooperates with the bent portion 320 to clamp one fourth seal body, and the second pressing surface 213 of the other second support beam cooperates with the bent portion 320 to clamp the other fourth seal body.

[0095] By adopting the above technical solution, it is convenient to form a first sealing interface 410 and a second sealing interface 510 between the outer frame 210 and the floor 300.

[0096] In some embodiments of the present application, please refer to Figures 3 to 8 together, the first pressing surface 212 is perpendicular to the height direction of the vehicle body 1000.

[0097] During the assembly process of the vehicle body 1000, the floor 300 can be covered on the outer frame 210 along the height direction of the vehicle body 1000, so that the plate body 310 and the outer frame 210 cooperate to clamp the first seal 400 along the height direction of the vehicle body 1000. By adjusting the distance between the floor 300 and the outer frame 210 along the height direction of the vehicle body 1000, the adjustment operation of the compression amount of the first seal 400 can be realized.

[0098] By adopting the above technical solutions, it is not only convenient to assemble the outer frame 210 and the floor 300, but also easier to control the compression amount of the first seal 400. When the vehicle body 1000 does not vibrate in the height direction, the first seal 400 can effectively block the gap between the outer frame 210 and the plate body 310, effectively improving the sealing performance of the battery 200. When the vehicle body 1000 vibrates in the height direction, the second seal 500 can be relied on to block the gap between the outer frame 210 and the floor 300, thereby effectively reducing the risk of sealing failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0099] In some embodiments of the present application, please refer to Figure 3 and Figure 4 , the included angle α formed by the first pressing surface 212 and the second pressing surface 213 is an obtuse angle.

[0100] In some embodiments, the first pressing surface 212 is formed at the top of the outer frame 210, the second pressing surface 213 is formed on the side of the outer frame 210 facing away from the cavity 211, the second pressing surface 213 is connected to the first pressing surface 212, and the second pressing surface 213 is inclined away from the cavity 211 of the outer frame 210 from the first pressing surface 212, so that the included angle α formed by the first pressing surface 212 and the second pressing surface 213 is an obtuse angle.

[0101] In other embodiments, the first pressing surface 212 is formed at the top of the outer frame 210, the second pressing surface 213 is formed on the side of the outer frame 210 facing the cavity 211, the second pressing surface 213 is connected to the first pressing surface 212, and the second pressing surface 213 is inclined towards the cavity 211 of the outer frame 210 from the first pressing surface 212, so that the included angle α formed by the first pressing surface 212 and the second pressing surface 213 is an obtuse angle.

[0102] During the assembly process of the vehicle body 1000, the floor 300 can be covered on the outer frame 210 along the height direction of the vehicle body 1000, so that the plate body 310 and the outer frame 210 cooperate to clamp the first seal 400 along the height direction of the vehicle body 1000, and the bending portion 320 cooperates with the second pressing surface 213 to clamp the second seal 500 along the inclination direction of the second pressing surface 213, and the assembly operation of the outer frame 210 and the floor 300 can be completed.

[0103] By adopting the above technical solutions, it is convenient to cover the floor 300 on the outer frame 210 and make the bending portion 320 cooperate with the second pressing surface 213 to clamp the second seal 500.

[0104] In some embodiments of the present application, please refer to Figure 4, the angle α formed by the first pressing surface 212 and the second pressing surface 213 is 95° - 120°.

[0105] The angle α formed by the first pressing surface 212 and the second pressing surface 213 can be determined according to actual application needs, and can be specifically 95°, 100°, 105°, 110°, 115°, 120°, etc.

[0106] By adopting the above technical solution, it is not only convenient to cover the floor 300 on the outer frame 210, but also can improve the situation where the compression amount of the second seal 500 changes when the vehicle body 1000 vibrates in the height direction, thereby reducing the risk of seal failure between the outer frame 210 and the floor 300 due to the vibration of the vehicle body 1000.

[0107] In some embodiments of the present application, please refer to Figure 5 and Figure 6 , the angle α formed by the first pressing surface 212 and the second pressing surface 213 is a right angle.

[0108] In other words, the first pressing surface 212 is perpendicular to the height direction of the vehicle body 1000, and the second pressing surface 213 is parallel to the height direction of the vehicle body 1000.

[0109] By adopting the above technical solution, when the vehicle body 1000 vibrates in the height direction, the compression amount of the first seal 400 will change greatly, while the compression amount of the second seal 500 will hardly change. Therefore, the second seal 500 can be relied on to block the gap between the outer frame 210 and the floor 300. When the vehicle body 1000 vibrates in the direction perpendicular to its height direction, the compression amount of the second seal 500 will change greatly, while the compression amount of the first seal 400 will hardly change. Therefore, the first seal 400 can be relied on to block the gap between the outer frame 210 and the floor 300, thereby effectively reducing the risk of seal failure between the outer frame 210 and the floor 300 due to the vibration of the vehicle body 1000, and effectively improving the sealing performance of the battery 200.

[0110] In some embodiments of the present application, please refer to Figure 4 , Figure 6 and Figure 8 , the plate body 310 has a third pressing surface 311 disposed opposite to the first pressing surface 212, and the third pressing surface 311 is parallel to the first pressing surface 212 and cooperates with the first pressing surface 212 to clamp the first seal 400.

[0111] The third pressing surface 311 is a portion used to squeeze the first sealing member 400 . When the floor 300 is covered on the outer frame 210 , the first pressing surface 212 and the third pressing surface 311 are arranged opposite to each other. The first pressing surface 212 and the third pressing surface 311 cooperate to clamp the first sealing member 400 to form a first sealing interface 410 .

[0112] In some embodiments, the first pressing surface 212 and the third pressing surface 311 are planes, and the first pressing surface 212 and the third pressing surface 311 are parallel to each other. When the first pressing surface 212 and the third pressing surface 311 cooperate to clamp the first seal 400, the direction of the extrusion force exerted on the first seal 400 by the first pressing surface 212 is opposite to the direction of the extrusion force exerted on the first seal 400 by the third pressing surface 311, so that the two extrusion forces can be superimposed on each other and act on the first seal 400, thereby effectively increasing the compression amount of the first seal 400.

[0113] By adopting the above technical solution, the extrusion force of the plate body 310 and the outer frame 210 on the first seal 400 is effectively increased, thereby effectively increasing the compression amount of the first seal 400, further reducing the risk of sealing failure between the outer frame 210 and the floor 300 due to vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0114] In other embodiments of the present application, please refer to Figure 4 , Figure 6 and Figure 8 The bending portion 320 has a fourth pressing surface 321 arranged opposite to the second pressing surface 213 . The fourth pressing surface 321 is parallel to the second pressing surface 213 and cooperates with the second pressing surface 213 to clamp the second sealing member 500 .

[0115] The fourth pressing surface 321 is a portion for squeezing the second sealing member 500 . When the floor 300 is covered on the outer frame 210 , the second pressing surface 213 and the fourth pressing surface 321 are arranged opposite to each other. The second pressing surface 213 and the fourth pressing surface 321 cooperate to clamp the second sealing member 500 to form a second sealing interface 510 .

[0116] In some embodiments, the second pressing surface 213 and the fourth pressing surface 321 are planes, and the second pressing surface 213 and the fourth pressing surface 321 are parallel to each other. When the second pressing surface 213 and the fourth pressing surface 321 cooperate to clamp the second seal 500, the direction of the extrusion force exerted by the second pressing surface 213 on the second seal 500 is opposite to the direction of the extrusion force exerted by the fourth pressing surface 321 on the second seal 500, so that the two extrusion forces can be superimposed on each other and act on the second seal 500, thereby effectively increasing the compression amount of the second seal 500.

[0117] By adopting the above technical solution, the extrusion force exerted on the second seal 500 by the bending portion 320 and the outer frame 210 acting together is effectively increased, thereby effectively increasing the compression amount of the second seal 500, further reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0118] In some other embodiments of the present application, please refer to Figure 4 、 Figure 6 and Figure 8 , the plate body 310 has a third pressing surface 311 disposed opposite to the first pressing surface 212. The third pressing surface 311 is parallel to the first pressing surface 212 and cooperates with the first pressing surface 212 to clamp the first seal 400. The bending portion 320 has a fourth pressing surface 321 disposed opposite to the second pressing surface 213. The fourth pressing surface 321 is parallel to the second pressing surface 213 and cooperates with the second pressing surface 213 to clamp the second seal 500.

[0119] By adopting the above technical solution, the extrusion force exerted on the first seal 400 by the plate body 310 and the outer frame 210 acting together and the extrusion force exerted on the second seal 500 by the bending portion 320 and the outer frame 210 acting together are effectively increased, thereby effectively increasing the compression amounts of the first seal 400 and the second seal 500, further reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0120] In some embodiments of the present application, please refer to Figure 4 、 Figure 6 and Figure 8 , the floor 300 further includes a first connecting portion 330, and the first connecting portion 330 is connected between the plate body 310 and the main frame 100.

[0121] The first connecting portion 330 is a part for connecting the plate body 310 and the main frame 100. In some embodiments, the first connecting portion 330 and the plate body 310 are integrally formed members. For example, the first connecting portion 330 and the plate body 310 are integrally formed by stamping. In some other embodiments, the first connecting portion 330 and the plate body 310 are separately formed and then connected to form a whole. The connection manner between the first connecting portion 330 and the plate body 310 can be, but is not limited to, welding, fastening connection, bonding, etc. The connection manner between the first connecting portion 330 and the main frame 100 can be, but is not limited to, welding, fastening connection, bonding, etc.

[0122] By adopting the above technical solution, under the support of the main frame 100, the extrusion force of the plate 310 on the first seal 400 is effectively increased, thereby effectively increasing the compression of the first seal 400, further reducing the risk of sealing failure between the outer frame 210 and the floor 300 due to vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0123] In some embodiments of the present application, the first connection portion 330 is disposed in an annular manner on the plate body 310 , the inner annular side of the first connection portion 330 is connected to the plate body 310 , and the outer annular side of the first connection portion 330 is connected to the main frame 100 .

[0124] In some embodiments, the first connecting portion 330 is an annular plate structure, and the first connecting portion 330 covers the gap between the plate body 310 and the main frame 100. The inner ring side of the first connecting portion 330 is connected to the plate body 310, and the outer ring side of the first connecting portion 330 is connected to the main frame 100 to seal the gap between the plate body 310 and the main frame 100.

[0125] By adopting the above technical solution, the gap between the plate body 310 and the main frame 100 is effectively blocked, thereby effectively isolating the cavity 211 of the outer frame 210 from the external environment of the main frame 100, and further improving the sealing performance of the battery 200.

[0126] In some embodiments of this application, please refer to Figure 4 , Figure 6 and Figure 8 The floor 300 further includes a second connection portion 340 , and the second connection portion 340 is connected between the bending portion 320 and the main frame 100 .

[0127] The second connection portion 340 is a portion for connecting the bending portion 320 and the main frame 100. In some embodiments, the second connection portion 340 and the bending portion 320 are integrally formed components, for example, the second connection portion 340 and the bending portion 320 are integrally formed using a stamping process. In other embodiments, the second connection portion 340 and the bending portion 320 are separately formed and then connected to each other into a whole, and the connection method between the second connection portion 340 and the bending portion 320 can be but not limited to welding, fastening connection, bonding, etc. The connection method between the second connection portion 340 and the main frame 100 can be but not limited to welding, fastening connection, bonding, etc.

[0128] By adopting the above technical solution, under the supporting action of the main frame 100, the extrusion force exerted by the bending portion 320 on the second seal 500 is effectively increased, thereby effectively increasing the compression amount of the second seal 500, further reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0129] In some embodiments of the present application, the second connecting portion 340 is disposed around the bending portion 320. The inner ring side of the second connecting portion 340 is connected to the bending portion 320, and the outer ring side of the second connecting portion 340 is connected to the main frame 100.

[0130] In some embodiments, the second connecting portion 340 has an annular plate structure. The second connecting portion 340 covers the gap between the bending portion 320 and the main frame 100. The inner ring side of the second connecting portion 340 is connected to the bending portion 320, and the outer ring side of the second connecting portion 340 is connected to the main frame 100 to block the gap between the bending portion 320 and the main frame 100.

[0131] By adopting the above technical solution, the gap between the bending portion 320 and the main frame 100 is effectively blocked, thereby effectively isolating the cavity 211 of the outer frame 210 from the external environment of the outer frame 210, and further improving the sealing performance of the battery 200.

[0132] In some embodiments of the present application, please refer to Figures 3 to 8 together, the first seal 400 is disposed on the top of the outer frame 210.

[0133] In other words, the above-mentioned first pressing surface 212 is formed on the top of the outer frame 210, and the first seal 400 is disposed on the first pressing surface 212.

[0134] By adopting the above technical solution, the internal space of the cavity 211 of the outer frame 210 occupied by the sealing structure between the outer frame 210 and the floor 300 is effectively reduced, the space utilization rate of the cavity 211 of the outer frame 210 is effectively improved, and thus the volume energy density of the battery 200 is effectively improved.

[0135] In other embodiments of the present application, please refer to Figures 3 to 8 together, the second seal 500 is disposed on the side of the outer frame 210 facing away from the cavity 211.

[0136] In other words, the above-mentioned second pressing surface 213 is formed on the side of the outer frame 210 facing away from the cavity 211, and the second seal 500 is disposed on the second pressing surface 213.

[0137] By adopting the above technical solution, the internal space of the cavity 211 of the outer frame 210 occupied by the sealing structure between the outer frame 210 and the floor 300 is effectively reduced, the space utilization rate of the cavity 211 of the outer frame 210 is effectively improved, and thus the volumetric energy density of the battery 200 is effectively improved.

[0138] In some other embodiments of the present application, please refer to Figures 3 to 8 together, the first seal 400 is disposed on the top of the outer frame 210, and the second seal 500 is disposed on the side of the outer frame 210 facing away from the cavity 211.

[0139] When the floor 300 covers the outer frame 210, the plate body 310 is located on the top of the outer frame 210, and the bent portion 320 is located on the side of the outer frame 210 facing away from the cavity 211. In other words, the bent portion 320 is bent relative to the plate body 310 in a direction approaching the above-mentioned support plane.

[0140] By adopting the above technical solution, the sealing structure between the outer frame 210 and the floor 300 does not need to occupy the internal space of the cavity 211 of the outer frame 210, the space utilization rate of the cavity 211 of the outer frame 210 is effectively improved, and thus the volumetric energy density of the battery 200 is effectively improved.

[0141] In some embodiments of the present application, please refer to Figure 7 and Figure 8 together, the outer frame 210 or the floor 300 is provided with a first limiting groove 217, and at least a part of the first seal 400 is received in the first limiting groove 217.

[0142] In some embodiments, please refer to Figure 8 together, the outer frame 210 is provided with a first limiting groove 217, and the first limiting groove 217 may be formed by the first pressing surface 212 of the outer frame 210 being recessed in a direction away from the plate body 310 of the floor 300.

[0143] In some other embodiments, the floor 300 is provided with a first limiting groove 217, and the first limiting groove 217 may be formed by the side of the plate body 310 of the floor 300 facing the outer frame 210 being recessed in a direction away from the outer frame 210.

[0144] The first limiting groove 217 may be in an annular structure and surround the cavity 211 of the outer frame 210. A part of the first seal 400 is received in the first limiting groove 217, and another part of the first seal 400 protrudes towards the outside of the first limiting groove 217.

[0145] By adopting the above technical solution, the position of the first seal 400 is effectively restricted to improve the situation where the first seal 400 is displaced when the vehicle body 1000 vibrates, thereby further reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0146] In some embodiments of the present application, please refer to Figure 7 and Figure 8 , a second limiting groove 218 is formed in the outer frame 210 or the floor 300, and at least a part of the second seal 500 is accommodated in the second limiting groove 218.

[0147] In some embodiments, please refer to Figure 8 , a second limiting groove 218 is formed in the outer frame 210. The second limiting groove 218 may be formed by the second pressing surface 213 of the outer frame 210 being recessed in a direction away from the bending portion 320 of the floor 300.

[0148] In other embodiments, a second limiting groove 218 is formed in the floor 300. The second limiting groove 218 may be formed by the side of the bending portion 320 of the floor 300 facing the outer frame 210 being recessed in a direction away from the outer frame 210.

[0149] The second limiting groove 218 may have an annular structure and be disposed around the cavity 211 of the outer frame 210. A part of the second seal 500 is accommodated in the second limiting groove 218, and another part of the second seal 500 protrudes towards the outside of the second limiting groove 218.

[0150] By adopting the above technical solution, the position of the second seal 500 is effectively restricted to improve the situation where the second seal 500 is displaced when the vehicle body 1000 vibrates, thereby further reducing the risk of seal failure between the outer frame 210 and the floor 300 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0151] In some embodiments of the present application, please refer to Figures 3 to 8 , the vehicle body 1000 further includes a third seal 600 disposed around the cavity 211. The main frame 100 and the outer frame 210 cooperate to clamp the third seal 600 to form a third sealing interface 610.

[0152] The third seal 600 is used to block the gap between the outer frame 210 and the main frame 100. In some embodiments, the third seal 600 has an annular structure and is disposed around the cavity 211. It can be understood that the first seal 400, the second seal 500, and the third seal 600 are respectively disposed at different parts of the outer frame 210. A part of the outer frame 210 cooperates with the floor 300 to clamp the first seal 400 to form a first sealing interface 410, another part of the outer frame 210 cooperates with the floor 300 to clamp the second seal 500 to form a second sealing interface 510, and yet another part of the outer frame 210 cooperates with the main frame 100 to clamp the third seal 600 to form a third sealing interface 610. The third seal 600 can be made of a flexible material, and the flexible material can be but not limited to rubber, silica gel, etc.

[0153] The third sealing interface 610 refers to the interface of the sealed portion between the outer frame 210 and the main frame 100. The third sealing interface 610 can be a plane or a curved surface, which can be specifically determined according to the shape of the pressure-bearing part of the third seal 600. In some embodiments, the third sealing interface 610 is a plane, and the third sealing interface 610 is perpendicular to the direction of the extrusion force jointly exerted by the outer frame 210 and the main frame 100 on the third seal 600. When the third seal 600 is in a clamped state, foreign objects cannot enter the space between the outer frame 210 and the main frame 100 along the direction parallel to the third sealing interface 610.

[0154] In some embodiments, the third seal 600 includes two fifth seal bodies spaced apart along the width direction of the vehicle body 1000 and two sixth seal bodies spaced apart along the length direction of the vehicle body 1000. In the case where the outer frame 210 includes two first support beams and two second support beams and the main frame 100 includes a front beam body, a rear beam body, and two sill beams, one first support beam cooperates with one sill beam to clamp one fifth seal body, the other first support beam cooperates with the other sill beam to clamp the other fifth seal body, one second support beam cooperates with the front beam body to clamp one sixth seal body, and the other second support beam cooperates with the rear beam body to clamp the other sixth seal body.

[0155] By adopting the above technical solution, the gap between the outer frame 210 and the main frame 100 is effectively blocked, so that the cavity 211 of the outer frame 210 is effectively isolated from the external environment of the main frame 100, further improving the sealing performance of the battery 200.

[0156] In some embodiments of the present application, please refer to Figure 4 , the third sealing interface 610 is parallel to the first sealing interface 410.

[0157] The third sealing interface 610 being parallel to the first sealing interface 410 means that the sealing direction of the sealing structure formed between the outer frame 210 and the plate body 310 is the same as the sealing direction of the sealing structure formed between the outer frame 210 and the main frame 100.

[0158] In some embodiments, the outer frame 210 has a first pressing surface 212 and a fifth pressing surface 214. The first seal 400 is disposed on the first pressing surface 212, and the third seal 600 is disposed on the fifth pressing surface 214. The first pressing surface 212 and the fifth pressing surface 214 are perpendicular to the height direction of the vehicle body 1000.

[0159] By adopting the above technical solution, when the vehicle body 1000 vibrates in a direction perpendicular to the first sealing interface 410, the second seal 500 can be relied on to block the gap between the outer frame 210 and the floor 300. When the vehicle body 1000 vibrates in a direction perpendicular to the second sealing interface 510, not only can the first seal 400 be relied on to block the gap between the outer frame 210 and the floor 300, but also the third seal 600 can be relied on to block the gap between the outer frame 210 and the main frame 100, thereby further reducing the risk of sealing failure between the outer frame 210 and the floor 300 and between the outer frame 210 and the main frame 100 due to the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0160] In some embodiments of the present application, please refer to Figure 7 and Figure 8 , the outer frame 210 or the main frame 100 is provided with a third limiting groove 219, and at least a part of the third seal 600 is received in the third limiting groove 219.

[0161] In some embodiments, please refer to Figure 8 , the outer frame 210 is provided with a third limiting groove 219, and the third limiting groove 219 may be formed by the part of the outer frame 210 facing the main frame 100 being recessed away from the main frame 100.

[0162] In some other embodiments, the main frame 100 is provided with a third limiting groove 219, and the third limiting groove 219 may be formed by the part of the main frame 100 facing the outer frame 210 being recessed away from the outer frame 210.

[0163] The third limiting groove 219 may have an annular structure and be disposed around the cavity 211 of the outer frame 210. A part of the third seal 600 is received in the third limiting groove 219, and another part of the third seal 600 protrudes towards the outside of the third limiting groove 219.

[0164] By adopting the above technical solution, the position of the third seal 600 is effectively restricted to improve the situation where the third seal 600 is displaced when the vehicle body 1000 vibrates, thereby effectively reducing the risk of seal failure between the outer frame 210 and the main frame 100 caused by the vibration of the vehicle body 1000, and further improving the sealing performance of the battery 200.

[0165] In some embodiments of the present application, please refer to Figures 3 to 8 , the outer frame 210 includes a frame body 215 and a mounting seat 216 connected to the frame body 215. The frame body 215 has a cavity 211. The mounting seat 216 is mounted on the main frame 100. A part of the floor 300 cooperates with the frame body 215 to clamp the first seal 400 to form a first sealing interface 410, and another part of the floor 300 cooperates with the frame body 215 to clamp the second seal 500 to form a second sealing interface 510. The main frame 100 cooperates with the mounting seat 216 to clamp the third seal 600 to form a third sealing interface 610.

[0166] The frame body 215 is the main part of the outer frame 210, and the mounting seat 216 is the part for connecting the frame body 215 and the main frame 100. In some embodiments, the mounting seat 216 is connected to the side of the frame body 215 facing away from the cavity 211, and the mounting seat 216 is in a ring structure and surrounds the frame body 215. In some embodiments, the frame body 215 and the mounting seat 216 can be integrally formed components. For example, the frame body 215 and the mounting seat 216 are integrally formed by die-casting process. In other embodiments, the frame body 215 and the mounting seat 216 are separately formed and then connected to form a whole. The connection method between the frame body 215 and the mounting seat 216 can be but not limited to welding, fastening connection, bonding, etc. The connection method between the mounting seat 216 and the main frame 100 can be but not limited to welding, fastening connection, bonding, etc.

[0167] By adopting the above technical solution, it is not only convenient to form the first sealing interface 410 and the second sealing interface 510 between the outer frame 210 and the floor 300, but also convenient to form the third sealing interface 610 between the outer frame 210 and the main frame 100.

[0168] In a second aspect, an embodiment of the present application provides a vehicle, including the vehicle body 1000 described in any one of the above embodiments.

[0169] Since the vehicle provided by the embodiment of the present application adopts the vehicle body 1000 described in any one of the above embodiments, the safety performance of the vehicle is effectively improved.

[0170] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle body, characterized in that: the vehicle body includes: a main frame; a battery, including battery cells and an outer frame mounted on the main frame, the outer frame having a cavity for accommodating the battery cells; a floor covering the outer frame to seal the cavity; a first seal ring disposed around the cavity, a part of the floor and the outer frame cooperating to clamp the first seal to form a first seal interface; a second seal ring disposed around the cavity, another part of the floor and the outer frame cooperating to clamp the second seal to form a second seal interface; wherein, the first seal interface and the second seal interface are arranged at an angle to each other.

2. The vehicle body according to claim 1, characterized in that: the floor includes a plate body covering the outer frame and a bent portion disposed around the plate body, the outer frame having a first pressing surface and a second pressing surface arranged at an angle to each other, the plate body and the first pressing surface cooperating to clamp the first seal to form the first seal interface, the bent portion and the second pressing surface cooperating to clamp the second seal to form the second seal interface.

3. The vehicle body according to claim 2, characterized in that: the first pressing surface is perpendicular to the height direction of the vehicle body.

4. The vehicle body according to claim 3, characterized in that: the angle formed by the first pressing surface and the second pressing surface is an obtuse angle.

5. The vehicle body according to claim 4, characterized in that: the angle formed by the first pressing surface and the second pressing surface is 95° - 120°.

6. The vehicle body according to claim 3, characterized in that: the angle formed by the first pressing surface and the second pressing surface is a right angle.

7. The vehicle body according to any one of claims 2 - 6, characterized in that: the plate body has a third pressing surface opposite to the first pressing surface, the third pressing surface being parallel to the first pressing surface and cooperating with the first pressing surface to clamp the first seal; and / or, the bent portion has a fourth pressing surface opposite to the second pressing surface, the fourth pressing surface being parallel to the second pressing surface and cooperating with the second pressing surface to clamp the second seal.

8. The vehicle body according to any one of claims 2 - 7, characterized in that: the floor further includes a first connecting portion connecting between the plate body and the main frame.

9. The vehicle body according to claim 8, characterized in that: the first connecting portion is disposed around the plate body, the inner ring side of the first connecting portion is connected to the plate body, and the outer ring side of the first connecting portion is connected to the main frame.

10. The vehicle body according to any one of claims 2 - 9, characterized in that: the floor further includes a second connecting portion connecting between the bent portion and the main frame.

11. The vehicle body according to claim 10, characterized in that: the second connecting portion is disposed around the bent portion, the inner ring side of the second connecting portion is connected to the bent portion, and the outer ring side of the second connecting portion is connected to the main frame.

12. The vehicle body according to any one of claims 1 - 11, It is characterized in that: The first seal is arranged at the top of the outer frame; and / or, The second seal is arranged on the side of the outer frame facing away from the cavity.

13. The vehicle body according to any one of claims 1-12, It is characterized in that: The outer frame or the floor is provided with a first limiting groove, and at least part of the first seal is accommodated in the first limiting groove.

14. The vehicle body according to any one of claims 1-13, It is characterized in that: The outer frame or the floor is provided with a second limiting groove, and at least part of the second seal is accommodated in the second limiting groove.

15. The vehicle body according to any one of claims 1-14, It is characterized in that: The vehicle body further includes a third seal disposed around the cavity, and the main frame and the outer frame cooperate to clamp the third seal to form a third sealing interface.

16. The vehicle body according to claim 15, It is characterized in that: The third sealing interface is parallel to the first sealing interface.

17. The vehicle body according to claim 15 or 16, It is characterized in that: The outer frame or the main frame is provided with a third limiting groove, and at least part of the third seal is accommodated in the third limiting groove.

18. The vehicle body according to any one of claims 15-17, It is characterized in that: The outer frame includes a frame body and a mounting seat connected to the frame body. The frame body has the cavity, the mounting seat is mounted on the main frame, a part of the floor cooperates with the frame body to clamp the first seal to form the first sealing interface, another part of the floor cooperates with the frame body to clamp the second seal to form the second sealing interface, and the main frame and the mounting seat cooperate to clamp the third seal to form the third sealing interface.

19. A vehicle, It is characterized in that: The vehicle includes the vehicle body according to any one of claims 1-18.

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