Frame and vehicle

Abstract

The utility model discloses a vehicle frame and a vehicle, the vehicle frame is provided with a front end and a rear end which are opposite to each other, the front end and the rear end are used for installing wheels respectively, at least one position between the front end and the rear end of the vehicle frame is bent downwards to form a concave part, and the concave part is used for containing at least part of a battery. According to the technical scheme, the driving performance of the vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of new energy vehicles, and in particular to a frame and a vehicle. Background Art

[0002] New energy vehicles have become an important part of the sustainable development of the vehicle industry due to their energy-saving and environmentally friendly advantages. With the development of new energy vehicles, people's requirements for the cruising range of new energy vehicles are also increasing.

[0003] For new energy vehicles, how to improve the driving performance of the vehicle is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The present application provides a frame and a vehicle, and the technical solution provided by the present application can improve the driving performance of the vehicle.

[0005] In a first aspect, the present application provides a vehicle frame having a front end and a rear end opposite to each other, the front end and the rear end being used to mount wheels respectively, the frame being bent downward at at least one position between the front end and the rear end to form a recessed portion, the recessed portion being used to accommodate at least part of a battery.

[0006] In the above scheme, by providing a downwardly bent recessed portion in the middle of the frame, on the one hand, the frame is partially moved downward to lower the center of gravity of the frame, thereby lowering the center of gravity of the vehicle, and further improving the handling performance of the vehicle; on the other hand, the part of the frame where the frame is partially moved downward can reasonably utilize the height of the battery itself to accommodate at least part of the battery, so that the vehicle with the frame has a suitable ground clearance and a battery of suitable capacity, thereby making the vehicle with the frame have higher passing performance (obstacle crossing performance) and endurance performance, that is, the vehicle has higher driving performance.

[0007] According to some embodiments of the present application, the frame includes two longitudinal beams, and the two longitudinal beams are arranged side by side along a first direction. Along a second direction, the longitudinal beam includes a first section, a bending section, and a second section connected in sequence, and the bending section is bent toward a third direction relative to the first section and the second section, and the bending sections of the two longitudinal beams together form a recessed portion. The second direction is parallel to the direction from the front end to the rear end, and the third direction is the direction of gravity, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0008] In the above scheme, by providing a downwardly bent and protruding bent section in the middle of the longitudinal beam, on the one hand, the center of gravity of the frame can be effectively lowered, and on the other hand, at least part of the battery can be accommodated, so that the vehicle with the frame has a suitable ground clearance and a battery of suitable capacity, thereby making the vehicle with the frame have higher handling performance, passability and endurance performance, that is, the vehicle has higher driving performance.

[0009] According to some embodiments of the present application, along the second direction, the bending section includes a first connecting section, a widening section, and a second connecting section arranged mutually, along the third direction, the widening section protrudes from the first section and the second section, the end of the first connecting section facing away from the widening section is connected to the first section, and the end of the second connecting section facing away from the widening section is connected to the second section. Along the first direction, the widening section protrudes outward relative to the first connecting section and the second connecting section, and the widening sections of the two longitudinal beams jointly form a receiving cavity, which is used to receive at least part of the battery.

[0010] In the above scheme, by providing an outwardly protruding widening section at the bending section to form a larger accommodating cavity, the frame can carry more or larger batteries, so that the vehicle with the frame has a longer cruising range and improves the vehicle's endurance performance.

[0011] According to some embodiments of the present application, the first connecting segment is arc-shaped, and the widening segment is transitionally connected to the first segment through the first connecting segment; the second connecting segment is arc-shaped, and the widening segment is transitionally connected to the second segment through the second connecting segment.

[0012] In the above scheme, by setting the first connecting section and the second connecting section to be arc-shaped, the first connecting section, the widened section and the second connecting section can have a smooth transition, thereby reducing the risk of stress concentration causing the bending section to be easily broken by impact, so that the frame has higher reliability, and thus the vehicle has higher reliability.

[0013] According to some embodiments of the present application, along the second direction, the widening section includes a first straight section, a second straight section, and a third straight section arranged mutually. Along the first direction, the first straight section protrudes outwards from the first connecting section, one end of the first straight section is connected to the first connecting section, and the other end of the first straight section is connected to the second straight section. Along the first direction, the third straight section protrudes outwards from the second connecting section, one end of the third straight section is connected to the second connecting section, and the other end of the third straight section is connected to the second straight section.

[0014] In the above scheme, by providing the first straight section, the second straight section and the third straight section, the cavity shape of the accommodating cavity can be made regular and square, so that the accommodating cavity can effectively accommodate the battery, which is beneficial to the improvement of the battery space rate and the improvement of the vehicle's endurance performance.

[0015] According to some embodiments of the present application, the widening section also includes a third connecting section and a fourth connecting section, the third connecting section is arc-shaped, and the first straight section is transitionally connected to the second straight section through the third connecting section, and the fourth connecting section is arc-shaped, and the third straight section is transitionally connected to the second straight section through the fourth connecting section.

[0016] In the above scheme, by setting the third connecting section and the fourth connecting section, the first straight section, the second straight section and the third straight section can be smoothly transitioned, reducing the risk of stress concentration causing the widened section to be easily broken by impact, so that the frame has higher reliability, and thus the vehicle has higher reliability.

[0017] According to some embodiments of the present application, along the first direction, the maximum distance between the widened sections of two longitudinal beams is not less than 2000 mm and not more than 2500 mm.

[0018] In the above scheme, by setting the maximum distance between the two widening sections to be no less than 2000mm, the width of the accommodating cavity can meet the size requirements of the battery, so that larger or more batteries can be accommodated between the two longitudinal beams, thereby improving the vehicle's endurance performance; by setting the maximum distance between the two widening sections to be no more than 2500mm, the impact on the vehicle width caused by the large spacing between the two longitudinal beams can be reduced, meeting the vehicle's driving requirements. To this end, in some embodiments of the present application, by setting the maximum distance between the two widening sections to be no less than 2000mm and no more than 2500mm, the vehicle's endurance performance and vehicle width size requirements can be taken into account.

[0019] According to some embodiments of the present application, the first section, the bending section and the second section are integrally formed.

[0020] In the above scheme, the longitudinal beam is formed by an integrated molding process to have greater strength and rigidity, which can effectively improve the torsion resistance of the longitudinal beam, thereby increasing the reliability of the frame and the reliability of the vehicle.

[0021] According to some embodiments of the present application, along the third direction, the first section has a first surface, the bending section has a second surface, the second section has a third surface, and the first surface, the second surface, and the third surface are arranged on the same side. Along the third direction, the maximum distance between the second surface and the first surface is not less than 300 mm and not more than 400 mm. The maximum distance between the second surface and the third surface is not less than 300 mm and not more than 400 mm.

[0022] In the above scheme, the maximum distance between the second surface and the first surface can be regarded as the degree of downward bending of the bending section. By setting the maximum distance between the second surface and the first surface to not less than 300mm, the center of gravity of the frame can be effectively lowered, thereby lowering the center of gravity of the vehicle, and then effectively improving the vehicle's handling performance, so that more extreme actions can be performed; by setting the maximum distance between the second surface and the first surface to not more than 400mm, the vehicle can have a higher ground clearance, so that the vehicle has better passability and obstacle crossing performance. To this end, in some embodiments of the present application, by setting the maximum distance between the second surface and the first surface to not less than 300mm and not more than 400mm, the vehicle's handling performance, passability and obstacle crossing performance can be taken into account.

[0023] According to some embodiments of the present application, the vehicle frame further includes a mounting member, which is disposed in the recessed portion, and the mounting member is used to detachably dispose the battery in the recessed portion.

[0024] In the above scheme, by arranging a mounting part in the recessed portion, the battery can be detachably assembled in the recessed portion, so that the vehicle with the frame has a battery replacement function, so that the power loss of the vehicle during driving can be replenished in time by battery replacement, thereby effectively improving the vehicle's endurance performance.

[0025] According to some embodiments of the present application, the recessed portion has an opening, the direction of the opening is parallel to the third direction, and the opening allows the battery to enter or leave the recessed portion.

[0026] In the above scheme, by setting the opening, the battery can be installed on the frame from the bottom or top of the frame, so that the battery replacement efficiency of the vehicle is high and the battery replacement needs of the vehicle are met. In some embodiments, such as the battery replacement scenario of a heavy truck, by setting a trench at the battery replacement site, when the heavy truck drives to the trench, the battery can be replaced from the bottom of the heavy truck. In some embodiments, the frame is the frame of a trailer, and when there is no object above the frame, the battery can be replaced from the top.

[0027] According to some embodiments of the present application, the vehicle frame further includes a connector, which is disposed in the recessed portion and is used to connect to the battery so that the battery is electrically or fluidically connected to the vehicle end.

[0028] In the above scheme, a connector is provided in the recessed portion so that the frame can effectively perform battery replacement operations, and the battery and the vehicle end can be efficiently electrically or fluidically connected.

[0029] In a second aspect, some embodiments of the present application provide a vehicle, the vehicle comprising a battery and the frame provided in the first aspect. The battery is connected to the frame, and at least a portion of the battery is accommodated in the recessed portion.

[0030] In the above scheme, since the vehicle frame has a downwardly bent recessed portion, on the one hand, the vehicle frame is partially moved downward to lower the center of gravity of the frame, thereby lowering the center of gravity of the vehicle; on the other hand, the portion of the frame that is partially moved downward can reasonably utilize the height of the battery itself to accommodate at least part of the battery, so that the vehicle has a suitable ground clearance and a battery of suitable capacity, thereby making the vehicle's handling performance, passability and endurance performance higher, that is, the vehicle's driving performance is higher.

[0031] According to some embodiments of the present application, the battery is detachably connected to the frame.

[0032] In the above scheme, by setting the battery to be detachably connected to the frame, the vehicle has a battery replacement function, so that the power loss of the vehicle during driving can be replenished in time by battery replacement, thereby effectively improving the vehicle's endurance performance.

[0033] According to some embodiments of the present application, the battery does not protrude from the frame in a direction opposite to the direction of gravity.

[0034] In the above scheme, the middle part of the frame is bent downward to form a recessed portion that can accommodate the battery, and the degree of the downward bending is such that the battery does not exceed the upper wing of the frame. Therefore, more or larger batteries can be loaded as much as possible while effectively lowering the center of gravity of the vehicle, so that the vehicle's handling performance and endurance performance are higher.

[0035] 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

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of the structure of a vehicle in some embodiments of the present application;

[0038] Figure 2 A three-dimensional diagram of a frame in some embodiments of the present application;

[0039] Figure 3 A top view of a frame in some embodiments of the present application;

[0040] Figure 4A side view of a frame in some embodiments of the present application;

[0041] Figure 5 A schematic diagram of a frame and a battery in some embodiments of the present application;

[0042] Figure 6 A schematic diagram of a frame in some embodiments of the present application;

[0043] Figure 7 Schematic diagram of a frame in some other embodiments of the present application;

[0044] Figure 8 This is a schematic diagram of a vehicle in some embodiments of the present application.

[0045] Icons: 100-frame; 101-front end; 102-rear end; 103-recessed portion; 1030-opening; 10-longitudinal beam; 11-first section; 110-first surface; 12-bending section; 120-first connecting section; 121-widening section; 1210-first straight section; 1211-second straight section; 1212-third straight section; 1213-third connecting section; 1214-fourth connecting section; 122-second connecting section; 123-second surface; 124-reinforcement; 13-second section; 130-third surface; 20-cross beam; 30-mounting part; 31-mounting plate; 32-battery exchange connector; 40-connector; 1000-vehicle; 200-battery; 300-controller; 400-motor; x-first direction; y-second direction; z-third direction. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application 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 drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0048] Reference to "embodiments" in this application 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 in this application may be combined with other embodiments.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0051] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0052] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are accommodated in the case.

[0053] In some embodiments, the battery cell may be a secondary battery, which refers to a battery cell that can be used continuously by activating the active material by charging after the battery cell is discharged. The battery cell may 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 hydrogen battery, a nickel cadmium battery, a lead storage battery, etc., and the embodiments of the present application are not limited thereto.

[0054] At present, new energy vehicles include a frame and a battery. The functions of the frame may include supporting and connecting the various assemblies of the vehicle, keeping the assemblies in a relatively correct position, and bearing various loads inside and outside the vehicle. In some embodiments, when applied to ordinary passenger cars or heavy trucks, the frame may be a frame-type structure spanning the front and rear axles of the vehicle, commonly known as a beam, which is the base of the vehicle. In other embodiments, when applied to a trailer, the frame may be a solid metal structure used to support and fix the various components of the trailer, and the front and rear ends of the frame may be directly equipped with wheels to achieve towing.

[0055] The driving performance of new energy vehicles may include handling performance, endurance performance, passability (obstacle crossing performance), etc. For new energy vehicles, how to improve the driving performance of the vehicle is a technical problem that needs to be solved urgently.

[0056] For new energy vehicles, the battery is generally installed on the vehicle frame, and the frame is relatively high from the ground, so that the battery is far away from the ground and the impact of bottom impact on the battery is reduced. However, a higher ground clearance will result in a higher center of gravity for the vehicle, affecting the vehicle's handling performance.

[0057] In view of this, in order to lower the center of gravity of the vehicle and improve the handling performance of the vehicle, some embodiments of the present application provide a frame, the frame having a front end and a rear end opposite to each other, the front end and the rear end are respectively used to install wheels, and the frame is bent downward at at least one position between the front end and the rear end to form a recessed portion, and the recessed portion is used to accommodate at least part of the battery.

[0058] In the above scheme, by providing a downwardly bent recessed portion in the middle of the frame, on the one hand, the frame is partially moved downward to lower the center of gravity of the frame, thereby lowering the center of gravity of the vehicle; on the other hand, the part of the frame where the frame is partially moved downward can reasonably utilize the height of the battery itself to accommodate at least part of the battery, so that the vehicle with the frame has a suitable ground clearance and a battery of suitable capacity, thereby making the vehicle with the frame have higher control performance, passability and endurance performance, that is, the vehicle has higher driving performance.

[0059] The vehicle frame disclosed in the embodiment of the present application can be installed in, but not limited to, a frame of a passenger vehicle, a frame of a commercial cargo vehicle, and frames of vehicles of other natures. The vehicle disclosed in the embodiment of the present application can be used in, but not limited to, a passenger vehicle, a commercial cargo vehicle, and vehicles of other natures.

[0060] Please refer to Figure 1 , Figure 1Schematic diagram of the structure of the vehicle in some embodiments of the present application. The vehicle 1000 may be a new energy vehicle, which may be a pure electric vehicle, a hybrid vehicle with a replaceable battery, or an extended-range vehicle with a replaceable battery. The vehicle includes a battery 200. The battery 200 may be used to power the vehicle. For example, the battery 200 may be used as an operating power source for the vehicle 1000, for the circuit system of the vehicle 1000, for example, for the working power requirements during the startup, navigation, and operation of the vehicle 1000.

[0061] The vehicle 1000 may also include a controller 300 and a motor 400. The controller 300 is used to control the battery 200 to supply power to the motor 400, for example, for the starting, navigation and working power requirements of the vehicle 1000 during driving. In some embodiments of the present application, the battery 200 can not only be used as the operating power source of the vehicle, but also as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle. In some embodiments, the vehicle 1000 also includes a frame 100. The frame 100 can be a frame-type structure spanning the front and rear axles of the vehicle, commonly known as a beam, which is the base of the vehicle. The function of the frame 100 may include supporting and connecting the various assemblies of the vehicle, so that the various assemblies maintain a relatively correct position, and bear various loads inside and outside the vehicle. The battery 200 can be indirectly set on the frame 100 through a bracket, or the battery 200 can be directly set on the frame 100 through a mounting member 30, a connector or other structural members. In other embodiments, the vehicle includes a vehicle body and a tractor towed at the rear of the vehicle body, the vehicle body provides driving force to tow the tractor. The tractor includes a frame 100 and wheels, the front and rear ends 102 of the frame 100 are rigidly connected to the wheels or connected to the wheels through suspension, and the battery 200 is arranged on the frame 100 of the tractor, and the battery 200 can be indirectly arranged on the frame 100 through a bracket, or the battery 200 can be directly arranged on the frame 100 of the tractor through a mounting member 30, a connecting member or other structural members.

[0062] According to some embodiments of the present application, a frame 100 is provided. Figure 2-Figure 5 , Figure 2 This is a three-dimensional diagram of the frame 100 in some embodiments of the present application. Figure 3 This is a top view of the frame 100 in some embodiments of the present application. Figure 4 This is a side view of the frame 100 in some embodiments of the present application. Figure 5 Schematic diagram of a frame 100 and a battery 200 in some embodiments of the present application.

[0063] The frame 100 has a front end 101 and a rear end 102 opposite to each other, the front end 101 and the rear end 102 are respectively used to install wheels, and the frame 100 is bent downward at at least one position between the front end 101 and the rear end 102 to form a recessed portion 103, and the recessed portion 103 is used to accommodate at least part of the battery 200.

[0064] The frame 100 is the main structure of the vehicle. The functions of the frame 100 may include supporting and connecting various assemblies of the vehicle, keeping the assemblies in a relatively correct position, and bearing various loads inside and outside the vehicle. In some embodiments, the length direction of the frame 100 is parallel to the length direction of the vehicle. In the length direction of the frame 100, the frame 100 has a front end 101 and a rear end 102 that are opposite to each other. The front end 101 and the rear end 102 of the frame 100 may be directly or indirectly provided with wheels, respectively. Exemplarily, the front end 101 of the frame 100 is provided with wheels through a front suspension, and the rear end 102 of the frame 100 is provided with wheels through a rear suspension. Exemplarily, the front end 101 of the frame 100 is rigidly connected to the wheels, and the rear end 102 of the frame 100 is rigidly connected to the wheels. Exemplarily, in some embodiments, the front end 101 and the rear end 102 of the frame 100 may be provided with hole structures for mounting wheels. In some embodiments, the frame 100 includes a supporting beam structure, for example, the frame 100 includes two longitudinal beams 10, the two longitudinal beams 10 are arranged side by side, and the two longitudinal beams 10 are fixedly connected by a cross beam 20. For another example, the frame 100 is an integrated structure, and the frame 100 is a single beam structure.

[0065] “The frame 100 is bent downward at at least one position between the front end 101 and the rear end 102 to form a recessed portion 103, and the recessed portion 103 is used to accommodate at least a portion of the battery 200” can be understood as that the frame 100 is usually extended in the horizontal direction to install wheels at the front end 101 and the rear end 102 to achieve the movement of the vehicle, and the frame 100 can be bent toward the ground at at least one position between the front end 101 and the rear end 102 to form a recessed area, which is defined as the recessed portion 103. The recessed area can accommodate at least a portion of the battery 200. Since a local portion of the frame 100 is offset downward, the center of gravity of the frame 100 corresponds to the downward offset.

[0066] In some embodiments, along the direction of gravity, the upper surface of the frame 100 is defined as an upper wing, and the lower surface of the frame 100 is defined as a lower wing. Corresponding to the position of the recessed portion 103, the upper wing is bent downward to be below the highest position of the frame 100, and the corresponding lower wing is also bent downward.

[0067] In some embodiments, the portion between the front end 101 and the rear end 102 of the frame 100 is referred to as the middle portion of the frame 100, and one, two or more recessed portions 103 may be provided in the middle portion of the frame 100. When there are multiple recessed portions 103, the multiple recessed portions 103 may respectively accommodate at least a portion of the corresponding battery 200, or the multiple recessed portions 103 may jointly accommodate at least a portion of a battery 200. In some embodiments, a recessed portion 103 is provided between the front end 101 and the rear end 102 of the frame 100, and after the battery 200 is loaded on the frame 100, the battery 200 is accommodated in the recessed portion 103 and the battery 200 is not higher than the highest position of the frame 100.

[0068] In some embodiments, the vehicle frame 100 includes two longitudinal beams 10 arranged side by side, the middle portion of the longitudinal beams 10 is bent downward to form a bent section 12, and the bent sections 12 of the two longitudinal beams 10 together form a recessed portion 103. In some embodiments, when the vehicle frame 100 is a single beam structure, the middle portion of the single beam structure is bent downward to form the recessed portion 103.

[0069] In the above scheme, by providing a downwardly bent recessed portion 103 in the middle of the frame 100, on the one hand, the frame 100 is partially moved downward to lower the center of gravity of the frame 100, thereby lowering the center of gravity of the vehicle; on the other hand, the part of the frame 100 that is partially moved downward can reasonably utilize the height of the battery 200 itself to accommodate at least part of the battery 200, so that the vehicle with the frame 100 has a suitable ground clearance and a battery 200 of suitable capacity, thereby making the vehicle with the frame 100 have higher control performance, passability and endurance performance, that is, the vehicle has higher driving performance.

[0070] According to some embodiments of this application, see Figure 2-Figure 4 The frame 100 includes two longitudinal beams 10, and the two longitudinal beams 10 are arranged side by side along the first direction x. Along the second direction y, the longitudinal beam 10 includes a first section 11, a bending section 12 and a second section 13 connected in sequence, and the bending section 12 is bent toward the third direction z compared with the first section 11 and the second section 13, and the bending sections 12 of the two longitudinal beams 10 jointly form a recessed portion 103. The second direction y is parallel to the direction from the front end 101 to the rear end 102, and the third direction z is the direction of gravity. The first direction x, the second direction y and the third direction z are perpendicular to each other.

[0071] In some embodiments, the first direction x may be the direction of the vehicle width, the second direction y may be the direction of the vehicle length, and the third direction z may be the direction of the vehicle height, and the third direction z may also be regarded as the direction of gravity. The third direction z may also be regarded as the vertical downward direction.

[0072] The longitudinal beam 10 may be a main structure of the vehicle frame 100. Two longitudinal beams 10 are arranged side by side at intervals along a first direction x, and a cross beam 20 is arranged between the two longitudinal beams 10. The two ends of the cross beam 20 in the first direction x respectively connect the two longitudinal beams 10.

[0073] See also Figure 2-Figure 4 , along the second direction y, the longitudinal beam 10 includes a first section 11, a bending section 12 and a second section 13 connected in sequence, the end of the first section 11 away from the bending section 12 can be installed with a wheel, and the end of the second section 13 away from the bending section 12 can be installed with a wheel. The bending section 12 is located between the first section 11 and the second section 13, and the bending section 12 is bent toward the third direction z compared with the first section 11 and the second section 13, that is, part of the bending section 12 protrudes from the first section 11 and the second section 13 in the third direction z. The bending section 12 can be a multi-section structure, for example, the bending section 12 includes two transition sections and a main section, the main section is substantially parallel to the first section 11 and the second section 13, the main section is located between the two transition sections, and the main section is connected to the first section 11 and the second section 13 through the transition section, so as to protrude from the first section 11 and the second section 13 in the third direction z. In some embodiments, the transition section can be arc-shaped so that the main section transitions smoothly with the first section 11 or the second section 13. In other embodiments, the transition section may be flat, so that the main section and the first section 11 or the second section 13 transition at an angle.

[0074] In the above scheme, by providing a downwardly bent and protruding bent section 12 in the middle of the longitudinal beam 10, on the one hand, the center of gravity of the frame 100 can be effectively lowered, and on the other hand, at least a part of the battery 200 can be accommodated, so that the vehicle with the frame 100 has a suitable ground clearance and a battery 200 of suitable capacity, thereby making the vehicle with the frame 100 have higher handling performance, passability and endurance performance.

[0075] According to some embodiments of this application, see Figure 2 , Figure 3 as well as Figure 6 , Figure 6 Schematic diagram of the vehicle frame 100 in some embodiments of the present application. Along the second direction y, the bending section 12 includes a first connecting section 120, a widening section 121 and a second connecting section 122 arranged mutually. Along the third direction z, the widening section 121 protrudes from the first section 11 and the second section 13. The end of the first connecting section 120 facing away from the widening section 121 is connected to the first section 11, and the end of the second connecting section 122 facing away from the widening section 121 is connected to the second section 13. Along the first direction x, the widening section 121 protrudes outward relative to the first connecting section 120 and the second connecting section 122. The widening sections 121 of the two longitudinal beams 10 jointly form a receiving cavity, which is used to receive at least part of the battery 200.

[0076] The bending section 12 is a multi-section structure. The widening section 121 is located between the first connecting section 120 and the second connecting section 122 . The widening section 121 is connected to the first section 11 through the first connecting section 120 , and is connected to the second section 13 through the second connecting section 122 .

[0077] “Along the first direction x, the widening section 121 protrudes outward relative to the first connecting section 120 and the second connecting section 122” can be understood as, the widening section 121 of one longitudinal beam 10 protrudes in a direction away from the other longitudinal beam 10 relative to the first connecting section 120 and the second connecting section 122 of the longitudinal beam 10. Exemplarily, in the vehicle frame 100, the widening section 121 of the longitudinal beam 10 is outwardly expanded, and along the first direction x, the maximum spacing between the widening sections 121 of the two longitudinal beams 10 is greater than the maximum spacing between the first connecting sections 120 of the two longitudinal beams 10, and the maximum spacing between the widening sections 121 of the two longitudinal beams 10 is greater than the maximum spacing between the second connecting sections 122 of the two longitudinal beams 10.

[0078] “The widened sections 121 of the two longitudinal beams 10 jointly form a receiving cavity, and the receiving cavity is used to receive at least part of the battery 200”, which can be understood as that the widened portion of the frame 100 can form a larger receiving cavity, which can receive at least part of the battery 200. Exemplarily, the entire battery 200 is located in the recessed portion 103, and along the third direction z, part of the battery 200 can be located between the two longitudinal beams 10 and in the receiving cavity, and another part of the battery 200 is located above the widened section 121.

[0079] In the above scheme, by providing a widened section 121 protruding outward on the bending section 12 to form a larger accommodating cavity, the frame 100 can carry more or larger batteries 200, so that the vehicle with the frame 100 has a longer cruising range and improves the vehicle's endurance performance.

[0080] According to some embodiments of this application, see Figure 4 The first connecting section 120 is arc-shaped, and the widening section 121 is transitionally connected to the first section 11 through the first connecting section 120 ; the second connecting section 122 is arc-shaped, and the widening section 121 is transitionally connected to the second section 13 through the second connecting section 122 .

[0081] The first connecting segment 120 connects the first segment 11 and the widening segment 121 to compensate for the distance difference between the first segment 11 and the widening segment 121 in the third direction z. In some embodiments, the first connecting segment 120 is arc-shaped to make a smooth transition between the first segment 11 and the widening segment 121. "The first connecting segment 120 is arc-shaped" can be understood as the first connecting segment 120 is a non-straight segment-shaped structure, and its outer contour can be curved or arc-shaped.

[0082] The second connecting segment 122 connects the second segment 13 and the widening segment 121 to compensate for the distance difference between the second segment 13 and the widening segment 121 in the third direction z. In some embodiments, the second connecting segment 122 is arc-shaped to make a smooth transition between the second segment 13 and the widening segment 121. "The second connecting segment 122 is arc-shaped" can be understood as the second connecting segment 122 is a non-straight segment-shaped structure, and its outer contour can be curved or arc-shaped.

[0083] In the above scheme, by setting the first connecting section 120 and the second connecting section 122 to be arc-shaped, the first connecting section 120, the widening section 121 and the second connecting section 122 can have a smooth transition, thereby reducing the risk of stress concentration causing the bending section 12 to be easily broken by impact, so that the frame 100 has higher reliability, and thus the vehicle has higher reliability.

[0084] In some other embodiments of the present application, the first connecting section 120 and the second connecting section 122 may also be straight.

[0085] According to some embodiments of this application, see Figure 3 According to some embodiments of the present application, along the second direction y, the widening section 121 includes a first straight section 1210, a second straight section 1211, and a third straight section 1212 arranged mutually. Along the first direction x, the first straight section 1210 protrudes outwards from the first connecting section 120, one end of the first straight section 1210 is connected to the first connecting section 120, and the other end of the first straight section 1210 is connected to the second straight section 1211. Along the first direction x, the third straight section 1212 protrudes outwards from the second connecting section 122, one end of the third straight section 1212 is connected to the second connecting section 122, and the other end of the third straight section 1212 is connected to the second straight section 1211.

[0086] The widening section 121 is a multi-section structure. In some embodiments, the widening section 121 includes a first straight section 1210, a second straight section 1211, and a third straight section 1212. The first straight section 1210, the second straight section 1211, and the third straight section 1212 are respectively straight. Exemplarily, the inner surfaces of the first straight section 1210, the second straight section 1211, and the third straight section 1212 are flat surfaces. The second straight section 1211 is located between the first straight section 1210 and the third straight section 1212, and the second straight section 1211 is connected to the first connecting section 120 through the first straight section 1210, and the second straight section 1211 is connected to the second connecting section 122 through the third straight section 1212. Along the first direction x, the distance between any parts of the second straight sections 1211 of the two longitudinal beams 10 may be greater than the distance between the first sections 11 of the two longitudinal beams 10 , and greater than the distance between the second sections 13 of the two longitudinal beams 10 .

[0087] In some embodiments, see Figure 3 The cavity shape of the accommodating cavity formed by the pair of widened sections 121 may be square, and the second straight section 1211 may correspond to the side surface of the battery 200 , for example, the side surface of the battery 200 may fit with the inner surface of the second straight section 1211 .

[0088] In the above scheme, by providing the first straight section 1210, the second straight section 1211 and the third straight section 1212, the cavity shape of the accommodating cavity can be made regular and square, so that the accommodating cavity can effectively accommodate the battery 200, which is beneficial to the improvement of the space rate of the battery 200 and the improvement of the vehicle's endurance performance.

[0089] According to some embodiments of the present application, the bending section 12 also includes a third connecting section 1213 and a fourth connecting section 1214. The third connecting section 1213 is arc-shaped, and the first straight section 1210 is transitionally connected to the first connecting section 120 through the third connecting section 1213. The fourth connecting section 1214 is arc-shaped, and the third straight section 1212 is transitionally connected to the second connecting section 122 through the fourth connecting section 1214.

[0090] The third connecting section 1213 connects the first straight section 1210 and the second straight section 1211, so that the first straight section 1210 and the second straight section 1211 have a smooth transition. The fourth connecting section 1214 connects the third straight section 1212 and the second straight section 1211, so that the third straight section 1212 and the second straight section 1211 have a smooth transition.

[0091] In the above scheme, by providing the third connecting section 1213 and the fourth connecting section 1214, the first straight section 1210, the second straight section 1211 and the third straight section 1212 can be smoothly transitioned, thereby reducing the risk of stress concentration causing the widening section 121 to be easily broken by impact, so that the frame 100 has higher reliability, and thus the vehicle has higher reliability.

[0092] In some embodiments, a reinforcement member 124 may be provided between the first straight sections 1210 of the two longitudinal beams 10, and the reinforcement member 124 connects the two first straight sections 1210. A reinforcement member 124 may be provided between the third straight sections 1212 of the two longitudinal beams 10, and the reinforcement member 124 connects the two third straight sections 1212. The reinforcement member 124 can improve the stability of the accommodating cavity and reduce the risk of the widening section 121 being broken by impact.

[0093] According to some embodiments of the present application, along the first direction x, the maximum distance between the widened sections 121 of two longitudinal beams 10 is not less than 2000 mm and not more than 2500 mm.

[0094] In some embodiments, the "maximum distance between the widening sections 121 of the two longitudinal beams 10" may be the distance between the second straight sections 1211 of the two longitudinal beams 10. In some embodiments, along the first direction x, the maximum distance between the two widening sections 121 is W, and W satisfies 2000mm≤W≤2500mm, so that at least part of the battery 200 with a size not greater than 2500mm can be located in the accommodating cavity. In some embodiments, along the first direction x, the maximum distance W between the two widening sections 121 may be 2000mm, 2100mm, 2200mm, 2300mm, 2400mm, 2500mm, or any value between two adjacent values.

[0095] In the above scheme, by setting the maximum distance between the two widening sections 121 to be no less than 2000mm, the width of the accommodating cavity can meet the size requirements of the battery 200, so that the two longitudinal beams 10 can accommodate larger or more batteries 200, thereby improving the vehicle's endurance performance; by setting the maximum distance between the two widening sections 121 to be no more than 2500mm, the impact on the vehicle width caused by the excessive spacing between the two longitudinal beams 10 can be reduced, meeting the vehicle's driving requirements. To this end, in some embodiments of the present application, by setting the maximum distance between the two widening sections 121 to be no less than 2000mm and no more than 2500mm, the vehicle's endurance performance and vehicle width size requirements can be taken into account.

[0096] According to some embodiments of the present application, the first section 11 , the bent section 12 , and the second section 13 are integrally formed.

[0097] In some embodiments, the longitudinal beam 10 can be integrally formed into the first section 11 , the second section 13 , and the downwardly protruding bending section 12 by, for example, compression molding.

[0098] In the above solution, the longitudinal beam 10 is formed by an integrated molding process to have greater strength and rigidity, which can effectively improve the torsion resistance of the longitudinal beam 10 , thereby increasing the reliability of the frame 100 and the reliability of the vehicle.

[0099] According to some embodiments of this application, see Figure 4 , along the third direction z, the first section 11 has a first surface 110, the bending section 12 has a second surface 123, the second section 13 has a third surface 130, and the first surface 110, the second surface 123 and the third surface 130 are arranged on the same side. Along the third direction z, the maximum distance between the second surface 123 and the first surface 110 is not less than 300 mm and not more than 400 mm, and the maximum distance between the third surface 130 and the second surface 123 is not less than 300 mm and not more than 400 mm.

[0100] In some embodiments, the first surface 110 may be the upper surface of the first segment 11, the second surface 123 may be the upper surface of the bending segment 12, and the third surface 130 may be the upper surface of the second segment 13. The maximum distance from the first surface 110 to the second surface 123 and the maximum distance from the third surface 130 to the second surface 123 may be understood as the recessed depth of the recessed portion 103.

[0101] In some embodiments, along the third direction z, the maximum distance H1 between the second surface 123 and the first surface 110 can be 300 mm, 310 mm, 320 mm, 330 mm, 340 mm ... 390 mm, 400 mm, or any value between two adjacent values. In some embodiments, along the third direction z, the maximum distance H2 between the third surface 130 and the second surface 123 can be 300 mm, 310 mm, 320 mm, 330 mm, 340 mm ... 390 mm, 400 mm, or any value between two adjacent values.

[0102] In the above scheme, the maximum distance between the second surface 123 and the first surface 110 can be regarded as the degree of downward bending of the bending section 12. By setting the maximum distance between the second surface 123 and the first surface 110 to be not less than 300 mm, the center of gravity of the frame 100 can be effectively lowered, thereby lowering the center of gravity of the vehicle, and then effectively improving the vehicle's handling performance, so that more extreme actions can be performed; by setting the maximum distance between the second surface 123 and the first surface 110 to be not more than 400 mm, the vehicle can have a higher ground clearance, so that the vehicle has better passability and obstacle crossing performance. To this end, in some embodiments of the present application, by setting the maximum distance between the second surface 123 and the first surface 110 to be not less than 300 mm and not more than 400 mm, the vehicle's handling performance, passability and obstacle crossing performance can be taken into account.

[0103] According to other embodiments of the present application, see Figure 7 , Figure 7 Schematic diagram of the frame 100 in some other embodiments of the present application. The frame 100 further includes a mounting member 30 , which is disposed in the recessed portion 103 , and the mounting member 30 is used to detachably mount the battery 200 in the recessed portion 103 .

[0104] The mounting member 30 is disposed in the recessed portion 103 , for example, the mounting member 30 is connected to the second straight section 1211 of the longitudinal beam 10 and is located between the second straight sections 1211 of two longitudinal beams 10 . The mounting member 30 is used to be detachably connected to the battery 200 .

[0105] In some embodiments, the mounting member 30 may include a mounting plate 31 and a battery-changing connector 32, wherein the mounting plate 31 is located between the two longitudinal beams 10 and connects the two longitudinal beams 10. The battery-changing connector 32 is disposed on the mounting plate 31, and the battery-changing connector 32 is used to lock the battery 200. The battery 200 may be located above or below the mounting plate 31. Exemplarily, in the third direction z, the mounting plate 31 has a bearing surface, which can bear the battery 200, and the battery-changing connector 32 protrudes from the bearing surface. In some embodiments, the battery-changing connector 32 includes but is not limited to a locking member, a threaded member or other connecting member for locking with the box of the battery 200.

[0106] In other embodiments, the mounting portion may be a mounting hole formed on the longitudinal beam 10, such as a mounting hole formed on the second straight section 1211, and the battery exchange connector 32 passes through the mounting hole to be locked with the battery 200. Exemplarily, the battery 200 is hoisted from top to bottom in the recessed portion 103, and the battery exchange connector 32 passes through the mounting hole to be connected to the box of the battery 200; another exemplary embodiment, the battery 200 is hoisted from bottom to top in the recessed portion 103, and the battery exchange connector 32 passes through the mounting hole to be connected to the box of the battery 200.

[0107] In the above scheme, by arranging the mounting part 30 in the recessed portion 103, the battery 200 can be detachably assembled in the recessed portion 103, so that the vehicle having the frame 100 has a battery replacement function, so that the power loss of the vehicle during driving can be replenished in time by battery replacement, thereby effectively improving the vehicle's endurance performance.

[0108] According to some embodiments of the present application, the recessed portion 103 has an opening 1030 , the direction of the opening 1030 is parallel to the third direction z, and the opening 1030 allows the battery 200 to enter or leave the recessed portion 103 .

[0109] The opening 1030 enables the battery 200 to enter or leave the recess 103 to achieve battery replacement of the vehicle.

[0110] In some embodiments, the opening 1030 for the battery 200 to enter or leave can be set upward so that the battery 200 can be set in the recessed portion 103 from top to bottom. Exemplarily, the frame 100 is the frame 100 of a towed vehicle. When there is nothing on the top of the frame 100, the opening 1030 is open upward, and the battery 200 can be hoisted from above into the recessed portion 103. In some embodiments, the opening 1030 for the battery 200 to enter or leave can be set downward, the vehicle is an ordinary vehicle, and the battery 200 can be replaced from the bottom of the vehicle. For example, a trench can be provided at the battery exchange site, and a battery exchange device can be provided in the trench. The vehicle to be replaced can travel to the top of the trench, and the battery of the vehicle can be replaced from the bottom of the vehicle through the battery exchange device.

[0111] In the above scheme, by setting the opening 1030, the battery 200 can be installed on the frame 100 from the bottom or top of the frame 100, so that the battery replacement efficiency of the vehicle is high and the battery replacement demand of the vehicle is met. In some embodiments, such as the battery replacement scenario of a heavy truck, by setting a trench at the battery replacement site, when the heavy truck drives to the trench, the battery 200 can be replaced from the bottom of the heavy truck. In some embodiments, the frame 100 is the frame 100 of the trailer, and when there is nothing above the frame 100, the battery can be replaced from the top.

[0112] According to some embodiments of the present application, the vehicle frame 100 further includes a connector 40 , which is disposed in the recess 103 , and the connector 40 is used to connect to the battery 200 , so that the battery 200 is electrically or fluidically connected to the vehicle end.

[0113] In some embodiments, the connector 40 includes a high-low voltage connector 40 and / or a liquid cooling connector 40. The connector 40 may be a connection joint at the vehicle end, which is used to cooperate with the connection joint of the battery 200 to achieve electrical or fluid communication between the vehicle end and the battery 200. In some embodiments, the connector 40 may be disposed on the longitudinal beam 10, and connected to the longitudinal beam 10 by screw connection, clamping or other methods. In other embodiments, the frame 100 includes a mounting member 30, and the mounting member 30 includes a mounting plate 31 disposed between two longitudinal beams 10, and the connector 40 may be disposed on the mounting plate 31.

[0114] In the above solution, by providing a connector 40 in the recessed portion 103, the frame 100 can effectively perform a battery replacement operation, so that the battery 200 and the vehicle end can be efficiently electrically connected or fluidically connected.

[0115] According to some embodiments of the present application, a vehicle is provided, see Figure 8 , Figure 8 The vehicle 1000 is a schematic diagram of a vehicle in some embodiments of the present application. The vehicle 1000 includes a battery 200 and the frame 100 provided above. The battery 200 is connected to the frame 100 , and at least a portion of the battery 200 is accommodated in the recess 103 .

[0116] The vehicle 1000 may be a new energy vehicle, and the vehicle 1000 may be a pure electric vehicle, a hybrid vehicle with replaceable battery, or an extended-range vehicle with replaceable battery, etc. The battery 200 may be used to power the vehicle. For example, the battery 200 may be used as an operating power source for the vehicle 1000, and may be used for the circuit system of the vehicle 1000, such as for the working power requirements during the startup, navigation, and operation of the vehicle 1000. In some embodiments, the frame 100 may be a frame-type structure of the vehicle 1000 that is straddled on the front and rear axles of the vehicle 1000. In other embodiments, the vehicle 1000 includes a vehicle body, and a tractor towed to the rear of the vehicle body, and the vehicle body provides driving force to tow the tractor for movement. The frame 100 is the load-bearing structure of the tractor.

[0117] In the above scheme, since the vehicle frame 100 has the downwardly bent recessed portion 103, on the one hand, the vehicle frame 100 is partially moved downward to lower the center of gravity of the frame 100, thereby lowering the center of gravity of the vehicle; on the other hand, the partially downwardly moved portion of the vehicle frame 100 can reasonably utilize the height of the battery 200 itself to accommodate at least part of the battery 200, so that the vehicle has a suitable ground clearance and a battery 200 of suitable capacity, thereby making the vehicle have higher handling performance, passability and endurance performance.

[0118] According to some embodiments of the present application, the battery 200 is detachably connected to the frame 100 .

[0119] In some embodiments, the battery 200 can be detachably connected to the frame 100 via a battery replacement connector 32, and the battery replacement connector 32 includes but is not limited to a locking member, a screw member or other connecting member for locking with the box of the battery 200. In some embodiments, the frame 100 includes a mounting member 30, which is disposed in the recessed portion 103, and the mounting member 30 is used to detachably dispose the battery 200 in the recessed portion 103.

[0120] In the above scheme, by setting the battery 200 to be detachably connected to the frame 100, the vehicle has a battery replacement function, so that the power loss of the vehicle during driving can be replenished in time by battery replacement, thereby effectively improving the vehicle's endurance performance.

[0121] According to some embodiments of the present application, in the direction opposite to the direction of gravity, the battery 200 does not extend beyond the frame 100. In some embodiments, after the battery 200 is installed on the frame 100, the battery 200 does not extend beyond the frame 100, and the battery 200 is entirely located in the recess 103.

[0122] In the above scheme, the middle part of the frame 100 is bent downward to form a recessed portion 103 capable of accommodating the battery 200, and the degree of the downward bending is such that the battery 200 does not exceed the upper wing of the frame 100, so that more or larger batteries 200 can be loaded as much as possible while effectively lowering the center of gravity of the vehicle, so that the vehicle's handling performance and endurance performance are higher.

[0123] According to some embodiments of this application, see Figure 2-Figure 7 , a vehicle frame 100 is provided. The vehicle frame 100 includes two longitudinal beams 10 and a cross beam 20 connecting the two longitudinal beams 10. The two longitudinal beams 10 are arranged side by side along a first direction x. Along a second direction y, the longitudinal beam 10 includes a first section 11, a bending section 12 and a second section 13 connected in sequence, the bending section 12 is bent toward a third direction z compared to the first section 11 and the second section 13, and the bending sections 12 of the two longitudinal beams 10 jointly form a recessed portion 103, and the recessed portion 103 is used to accommodate at least part of the battery 200. The second direction y is parallel to the direction from the front end 101 to the rear end 102, the third direction z is the direction of gravity, and the first direction x, the second direction y and the third direction z are perpendicular to each other.

[0124] In some embodiments, along the second direction y, the bending section 12 includes a first connecting section 120, a widening section 121, and a second connecting section 122 arranged mutually, along the third direction z, the widening section 121 protrudes from the first section 11 and the second section 13, the end of the first connecting section 120 facing away from the widening section 121 is connected to the first section 11, and the end of the second connecting section 122 facing away from the widening section 121 is connected to the second section 13. Along the first direction x, the widening section 121 protrudes outward relative to the first connecting section 120 and the second connecting section 122, and the widening sections 121 of the two longitudinal beams 10 jointly form a receiving cavity, which is used to receive at least part of the battery 200.

[0125] In some embodiments, the battery 200 can be fixed as one with the frame 100, that is, the vehicle with the frame 100 does not have the battery replacement function. In other embodiments, the battery 200 can be detachably connected to the frame 100, that is, the vehicle with the frame 100 has the battery replacement function.

[0126] In the above scheme, by providing a bent section 12 that bends downward and protrudes in the middle of the longitudinal beam 10, on the one hand, the center of gravity of the frame 100 can be effectively lowered, and on the other hand, at least part of the battery 200 can be accommodated, so that the vehicle with the frame 100 has a suitable ground clearance and a battery 200 of suitable capacity, thereby making the vehicle with the frame 100 have higher control performance, passability and endurance performance. At the same time, by providing a widening section 121 that protrudes outward on the bent section 12 to form a larger accommodating cavity, the frame 100 can carry more or larger batteries 200, so that the vehicle with the frame 100 has a longer cruising range and improves the endurance performance of the vehicle.

[0127] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A frame, characterized in that: The frame has a front end and a rear end opposite to each other, the front end and the rear end are respectively used to install wheels, and the frame is bent downward at at least one position between the front end and the rear end to form a recessed portion, and the recessed portion is used to accommodate at least part of the battery.

2. The frame according to claim 1, characterized in that: The frame comprises two longitudinal beams, and the two longitudinal beams are arranged side by side along a first direction; Along the second direction, the longitudinal beam comprises a first section, a bending section and a second section which are connected in sequence, the bending section is bent toward a third direction compared with the first section and the second section, and the bending sections of the two longitudinal beams jointly form the recessed portion; The second direction is parallel to the direction from the front end to the rear end, the third direction is the direction of gravity, and the first direction, the second direction and the third direction are perpendicular to each other.

3. The frame according to claim 2, characterized in that: Along the second direction, the bending section includes a first connecting section, a widening section and a second connecting section arranged mutually, along the third direction, the widening section protrudes from the first section and the second section, the end of the first connecting section facing away from the widening section is connected to the first section, and the end of the second connecting section facing away from the widening section is connected to the second section; Along the first direction, the widening section protrudes outward relative to the first connecting section and the second connecting section, and the widening sections of the two longitudinal beams jointly form a receiving cavity, and the receiving cavity is used to receive at least part of the battery.

4. The frame according to claim 3, characterized in that: The first connecting section is arc-shaped, and the widening section is transitionally connected to the first section via the first connecting section. The second connecting section is arc-shaped, and the widening section is transitionally connected to the second section via the second connecting section.

5. The frame according to claim 3, characterized in that: Along the second direction, the widening section includes a first straight section, a second straight section and a third straight section arranged mutually; Along the first direction, the first straight section protrudes outwards than the first connecting section, one end of the first straight section is connected to the first connecting section, and the other end of the first straight section is connected to the second straight section; Along the first direction, the third straight segment protrudes outwards than the second connecting segment, one end of the third straight segment is connected to the second connecting segment, and the other end of the third straight segment is connected to the second straight segment.

6. The frame according to claim 5, characterized in that: The widening section also includes a third connecting section and a fourth connecting section, the third connecting section is arc-shaped, and the first straight section is transitionally connected to the second straight section through the third connecting section, and the fourth connecting section is arc-shaped, and the third straight section is transitionally connected to the second straight section through the fourth connecting section.

7. The frame according to claim 3, characterized in that: Along the first direction, the maximum distance between the widened sections of the two longitudinal beams is not less than 2000 mm and not more than 2500 mm.

8. The frame according to any one of claims 2 to 7, characterized in that: The first section, the bending section and the second section are integrally formed.

9. The frame according to any one of claims 2 to 7, characterized in that: Along the third direction, the first section has a first surface, the bent section has a second surface, the second section has a third surface, and the first surface, the second surface and the third surface are arranged on the same side; Along the third direction, the maximum distance between the second surface and the first surface is not less than 300 mm and not more than 400 mm; the maximum distance between the third surface and the second surface is not less than 300 mm and not more than 400 mm.

10. The frame according to any one of claims 2 to 7, characterized in that: The vehicle frame further comprises a mounting member, wherein the mounting member is arranged in the recessed portion, and the mounting member is used to detachably mount the battery in the recessed portion.

11. The frame according to claim 10, characterized in that: The recessed portion has an opening, the direction of the opening is parallel to the third direction, and the opening is used for the battery to enter or leave the recessed portion.

12. The frame according to claim 10, characterized in that: The frame further includes a connector, which is disposed in the recessed portion and is used to connect with the battery so that the battery is electrically or fluidically connected to the vehicle end.

13. A vehicle, characterized in that: include: Battery; The frame according to any one of claims 1 to 12; The battery is connected to the vehicle frame, and at least a portion of the battery is accommodated in the recessed portion.

14. The vehicle according to claim 13, characterized in that The battery is detachably connected to the frame.

15. The vehicle according to claim 13, characterized in that In a direction opposite to the direction of gravity, the battery does not protrude from the frame.

Images