Vehicle and frame

Abstract

The application belongs to the technical field of vehicle torsion, and particularly relates to a vehicle and a vehicle frame. The vehicle comprises a battery device and a vehicle frame. The vehicle frame comprises a first frame body and a second frame body. At least one of the first frame body and the second frame body is connected with the battery device. A side of the first frame body along a first direction is rotationally connected with the second frame body. A rotation axis of relative rotation of the first frame body and the second frame body is parallel to the first direction, which is a length direction of the vehicle frame. The first frame body can rotate relative to the second frame body, so as to absorb or disperse torsion force, reduce the torsion force transmitted from the first frame body to the second frame body, and reduce problems such as tearing and sealing failure of the battery device caused by the torsion force. Therefore, the vehicle of the application can reduce the problems such as tearing and sealing failure of the battery device of the vehicle, and is beneficial to improving the use reliability of the battery device and the use reliability of the vehicle.

Description

Technical Field

[0001] This application belongs to the field of vehicle torsion technology, and particularly relates to a vehicle and its frame. Background Technology

[0002] With the development of new energy technologies, battery devices are increasingly widely used in vehicles, serving as the vehicle's power supply. These devices are mounted on the vehicle's frame, but the frame, as a primary load-bearing component, experiences significant and complex stresses. A portion of these torsional forces are transmitted to the battery device, posing a risk of damage and affecting its reliability. Therefore, minimizing the impact of torsional forces on the battery device is a crucial research area for vehicle engineering.

[0003] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Utility Model Content

[0004] The purpose of this application is to provide a vehicle and frame that can reduce the impact of torsional forces on the battery device.

[0005] The technical solution adopted in the embodiments of this application is:

[0006] In a first aspect, a vehicle is provided, including a battery device and a frame. The frame includes a first frame and a second frame, at least one of which is connected to the battery device. A side portion of the first frame is rotatably connected to the second frame along a first direction. The axis of rotation of the first frame and the second frame relative to each other is parallel to the first direction, which is the length direction of the frame.

[0007] In this embodiment of the vehicle, the frame carries goods, and the battery provides power to drive the vehicle. The frame includes a first frame and a second frame. The first frame is rotatably connected to the second frame on one side along a first direction, and the axis of rotation of the first and second frames relative to each other is parallel to the first direction, which is the length direction of the frame. This allows the second frame to rotate relative to the first frame. When the vehicle travels on uneven roads, if the second frame twists, its rotation relative to the first frame absorbs or disperses the torsional force, reducing the torsional force transmitted from the second frame to the first frame. This reduces the risk of tearing or sealing failure of the battery device on the first frame due to torsional force. Similarly, if the first frame twists, its rotation relative to the second frame absorbs or disperses the torsional force, reducing the torsional force transmitted from the first frame to the second frame. This also reduces the risk of tearing or sealing failure of the battery device on the second frame due to torsional force. Therefore, the vehicle of this embodiment reduces the risk of tearing or sealing failure of the vehicle's battery device, improving the reliability of the battery device and the overall reliability of the vehicle.

[0008] In some embodiments, the frame also includes a pivot, through which the first frame and the second frame are connected.

[0009] By adopting the technical method of this embodiment, the first frame and the second frame are rotatably connected by a rotating shaft, which is simple in structure and easy to process and manufacture.

[0010] In some embodiments, the first frame has a first rotating hole, and one end of the rotating shaft is rotatably inserted into the first rotating hole along a first direction.

[0011] By adopting the technical solution of this embodiment, the rotating shaft is inserted into the first rotating hole, thereby realizing the rotational connection between the first frame and the second frame. The assembly method of the rotating shaft and the first rotating hole is simple and helps to reduce the manufacturing cost of the frame.

[0012] In some embodiments, the frame has a first limiting structure for limiting the movement of the pivot shaft within the first rotation hole in a first direction.

[0013] By adopting the technical solution of this embodiment, the first limiting structure can restrict the movement of the rotating shaft along the first direction, prevent the rotating shaft from coming out of the first rotating hole, improve the connection reliability of the first frame and the second frame, and also help to increase the load capacity of the vehicle.

[0014] In some embodiments, the first frame has a first connecting portion and a first pressure cover, the first pressure cover being fixedly connected to the first connecting portion, and the first pressure cover and the first connecting portion forming a first rotating hole.

[0015] By adopting the technical solution of this embodiment, during assembly, the end of the rotating shaft can be first installed on the first connecting part, then the first pressure cover can be pressed and installed on the end of the rotating shaft, and then the first pressure cover and the first connecting part can be fixedly connected, thereby rotating the end of the rotating shaft into the first rotating hole. This installation method is simple and helps to reduce the installation difficulty of the first frame and the rotating shaft, and reduce the assembly cost of the frame.

[0016] In some embodiments, the first limiting structure includes a first protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The first protrusion is disposed on the side of the first pressure cover facing away from the second frame, and the first protrusion is used to abut against the end face of the first pressure cover facing away from the second frame.

[0017] By adopting the technical solution of this embodiment, the first protrusion of the rotating shaft abuts against the end face of the first pressure cover facing away from the second frame, thereby playing the role of axial positioning of the rotating shaft and preventing the rotating shaft from coming out of the first rotating hole; the protrusion structure is used for limiting, the first limiting structure has a simple structure and a good blocking effect, which is conducive to improving the reliability of the connection between the first frame and the rotating shaft.

[0018] In some embodiments, the first limiting structure includes a second protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The second protrusion is disposed on the side of the first pressure cover facing the second frame, and the second protrusion is used to abut against the end face of the first pressure cover facing the second frame.

[0019] By adopting the technical solution of this embodiment, the second protrusion can limit the length of the shaft protruding from the first rotating hole and out of the first pressure cover towards the second frame, reducing the risk of collision between the first frame and the second frame due to the excessive length of the shaft protruding from the first rotating hole, and improving the stability of vehicle operation; in addition, the cooperation of the first protrusion and the second protrusion can realize the axial positioning of the shaft in the first rotating hole, improve the connection stability between the first frame and the shaft, and improve the reliability of the vehicle frame.

[0020] In some embodiments, at least one of the first gland and the first connecting portion is provided with a first oil injection nozzle for injecting lubricating oil into the first rotating hole.

[0021] By adopting the technical solution of this embodiment, lubricating oil is injected into the first rotating hole through the first oil injection nozzle. The rotating connection between the first frame and the rotating shaft has a good lubrication effect, which can better realize the smooth rotation of the first frame relative to the second frame when the frame is subjected to torsional force. This can more effectively reduce the torsional force transmitted to the battery device, enhance the protection effect of the battery device, and improve the overall safety and reliability of the vehicle.

[0022] In some embodiments, the second frame has a second rotating hole, and the other end of the rotating shaft rotatably passes through the second rotating hole along the first direction.

[0023] By adopting the technical solution of this embodiment, the rotating shaft is inserted into the second rotating hole, thereby realizing the rotational connection between the first frame and the second frame. The assembly method of the rotating shaft and the second rotating hole is simple and helps to reduce the manufacturing cost of the frame.

[0024] In some embodiments, the frame has a second limiting structure for restricting the movement of the shaft within the second rotation hole in a first direction.

[0025] By adopting the technical solution of this embodiment, the second limiting structure can restrict the movement of the rotating shaft along the first direction, reduce the risk of the rotating shaft coming out of the second rotating hole, improve the connection reliability of the first frame and the second frame, and also help to increase the load capacity of the vehicle.

[0026] In some embodiments, the second frame has a second connecting portion and a second pressure cover, the second pressure cover being fixedly connected to the second connecting portion, and the second pressure cover and the second connecting portion forming a second rotating hole.

[0027] By adopting the technical solution of this embodiment, during assembly, the end of the rotating shaft can be first installed on the second connecting part, then the second pressure cover can be pressed and installed on the end of the rotating shaft, and then the second pressure cover and the second connecting part can be fixedly connected, thereby rotating the end of the rotating shaft into the second rotating hole. This installation method is simple and helps to reduce the installation difficulty of the second frame and the rotating shaft, and reduce the assembly cost of the frame.

[0028] In some embodiments, the second limiting structure includes a third protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The third protrusion is disposed on the side of the second cover facing away from the first frame, and the third protrusion is used to abut against the end face of the second cover facing away from the first frame.

[0029] By adopting the technical solution of this embodiment, the third protrusion of the rotating shaft abuts against the end face of the second pressure cover facing away from the first frame, thereby playing the role of axial positioning of the rotating shaft and preventing the rotating shaft from coming out of the second rotating hole; the protrusion structure is used for limiting, the second limiting structure has a simple structure and a good blocking effect, which is conducive to improving the reliability of the connection between the second frame and the rotating shaft.

[0030] In some embodiments, the second limiting structure includes a second protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The second protrusion is disposed on the side of the second pressure cover facing the first frame, and the second protrusion is used to abut against the end face of the second pressure cover facing the first frame.

[0031] By adopting the technical solution of this embodiment, the second protrusion can limit the length of the shaft protruding from the second rotating hole and out of the second pressure cover away from the first frame, reducing the risk of collision between the first frame and the second frame due to the excessive length of the shaft protruding from the second rotating hole, and improving the stability of vehicle operation; in addition, the cooperation of the third protrusion and the second protrusion can realize the axial positioning of the shaft in the second rotating hole, improve the connection stability between the second frame and the shaft, and improve the reliability of the frame.

[0032] In some embodiments, at least one of the second gland and the second connecting portion is provided with a second oil injection nozzle for injecting lubricating oil into the second rotating hole.

[0033] By adopting the technical solution of this embodiment, lubricating oil is injected into the second rotating hole through the second oil injection nozzle. The rotating connection between the second frame and the rotating shaft has a good lubrication effect, which can better realize the smooth rotation of the first frame relative to the second frame when the frame is subjected to torsional force. This can more effectively reduce the torsional force transmitted to the battery device, enhance the protection effect of the battery device, and improve the overall safety and reliability of the vehicle.

[0034] In some embodiments, the second frame includes two first side beams and a plurality of first cross beams. The two first side beams are spaced apart along a second direction, and the plurality of first cross beams are spaced apart along a first direction. The first cross beams are connected between the two first side beams. The first cross beam near the first frame has a second rotating hole at the middle part along the second direction, where the second direction is the width direction of the frame.

[0035] By adopting the technical solution of this embodiment, a second rotating hole is provided on the first crossbeam near the first frame, which helps to shorten the length of the rotating shaft and facilitates the rotational connection between the first and second frames. Furthermore, placing the second rotating hole in the middle of the first crossbeam makes the rotating shaft more stable during rotation, distributes force more evenly, reduces additional stress and wear caused by rotational eccentricity, and more effectively absorbs and disperses torsional forces. In addition, the second frame adopts a frame structure with two first side beams and multiple first crossbeams, which helps to improve the structural reliability of the second frame.

[0036] In some embodiments, the frame further includes a rotation limiting mechanism, which connects the first frame and the second frame, and is used to limit the rotation range between the first frame and the second frame.

[0037] By adopting the technical solution of this embodiment, the design of the rotation limit mechanism ensures that the rotation range between the first frame and the second frame is within a reasonable range, thereby improving the overall performance and safety of the frame and the vehicle.

[0038] In some embodiments, a rotation limiting mechanism is connected between the second frame and the first frame on at least one side along a second direction, where the second direction is the width direction of the frame.

[0039] By adopting the technical solution of this embodiment, the frame is twisted, causing the first frame and the second frame to rotate. The rotation limiting mechanism is connected between the second frame and the first frame on at least one side along the width direction of the frame (i.e., the second direction). This allows the rotation limiting mechanism to directly restrict and constrain the relative rotation between the first frame and the second frame, reducing instability or damage to the vehicle structure caused by excessive rotation.

[0040] In some embodiments, the rotation limiting mechanism includes a pull rod, a first connecting seat, and a second connecting seat. The first connecting seat is connected to a first frame, and the second connecting seat is connected to the side of the second frame along a second direction. The two ends of the pull rod are respectively hinged to the first connecting seat and the second connecting seat. The hinge axis between the pull rod and the first connecting seat is parallel to the second direction, and the hinge axis between the pull rod and the second connecting seat is parallel to the first direction.

[0041] By adopting the technical solution of this embodiment, the rotation limiting mechanism uses a structure of a pull rod, a first connecting seat, and a second connecting seat. This allows the rotation limiting mechanism to more flexibly adapt to the relative rotation between the first and second frames, reducing the risk of problems such as tearing or seal failure of the battery device. When the first and second frames exceed a preset rotation range, the pull rod can limit further rotation between them, reducing instability or damage to the vehicle structure caused by excessive rotation. The rotation limiting mechanism, with its pull rod, first connecting seat, and second connecting seat structure, is simple in structure and has good reliability, making it suitable for use in vehicles with high load capacities.

[0042] In some embodiments, the pull rod includes a first hinge portion, a straight segment, an arc segment, and a second hinge portion connected in sequence. The first hinge portion is hinged to a first connecting seat, the second hinge portion is hinged to a second connecting seat, and the straight segment extends along a first direction.

[0043] By adopting the technical solution of this embodiment, when relative rotation occurs between the first frame and the second frame, the various parts of the pull rod work together. The first hinge and the second hinge, through their hinges with the first connecting seat and the second connecting seat, achieve an active connection between the pull rod and the first connecting seat and the second connecting seat. The straight section facilitates the effective transmission of force, while the arc-shaped section plays a role in buffering, adapting to angle changes, and protecting the mechanism during the rotation of the first frame and the second frame. Through this structure, the pull rod can precisely limit the rotation range between the first frame and the second frame, reducing damage to components such as the battery device and the frame, and improving the overall performance and safety of the vehicle. In addition, the arc-shaped section design can reduce stress concentration and improve the reliability of the pull rod.

[0044] In some embodiments, the rotation limiting mechanism includes a first hinge shaft connected to a first connecting seat, a first hinge portion having a first hinge hole, and the first hinge shaft passing through the first hinge hole; and / or, the rotation limiting mechanism includes a second hinge shaft connected to a second connecting seat, a second hinge portion having a second hinge hole, and the second hinge shaft passing through the second hinge hole.

[0045] By adopting the technical solution of this embodiment, the first hinge part and the first connecting part are connected by passing through the first hinge shaft and the first hinge hole, which is simple, easy to assemble, and has good connection reliability; and / or, the second hinge part and the second connecting part are connected by passing through the second hinge shaft and the second hinge hole, which is simple and easy to assemble.

[0046] In some embodiments, the battery device includes a housing and at least one battery cell assembly, the housing having an assembly space, the battery cell assembly being located in the assembly space, the battery cell assembly including a plurality of battery cells, and a first frame connected to the housing.

[0047] By adopting the technical solution of this embodiment, the battery device is installed on the first frame, and one or more battery cell assemblies are provided inside the battery device. The battery cell assembly includes multiple battery cells, and the number of battery cells and battery cell assemblies can be flexibly set to meet different usage requirements.

[0048] In some embodiments, the housing includes a top cover, a bottom plate, and a frame, with the top cover and bottom plate respectively covering opposite sides of the frame and enclosing an assembly space.

[0049] By adopting the technical solution of this embodiment, the enclosure uses a combination structure of a top cover, a bottom plate, and a frame, which can provide a stable and reliable installation environment for the battery cells. This structure can effectively protect the battery cells from external interference and damage, improve the reliability of the battery device, extend the battery's lifespan, and enhance the overall reliability and safety of the battery device.

[0050] In some embodiments, the housing further includes a heat exchange plate for heat exchange with the battery cells. The heat exchange plate is disposed within the frame and divides the assembly space into a first cavity and a second cavity. The first cavity is located between the top cover and the heat exchange plate, and the second cavity is located between the bottom plate and the heat exchange plate. At least one battery cell assembly is disposed in the first cavity and at least one battery cell assembly is disposed in the second cavity. The battery cell in the first cavity has a first pressure relief mechanism on the side facing away from the heat exchange plate, and the battery cell in the second cavity has a second pressure relief mechanism on the side facing away from the heat exchange plate.

[0051] By adopting the technical solution of this embodiment, the battery cells located in the first cavity and the battery cells located in the second cavity can share a single heat exchange plate, which reduces the height of the battery device, increases the ground clearance of the battery device, and reduces the risk of the bottom of the battery device being bumped. In addition, the support plate in the middle of the housing can be directly used as a heat exchange plate, which helps to reduce the manufacturing cost of the battery device. In particular, with the upper surface of the housing flush with the upper surface of the support, sharing a single heat exchange plate helps to increase the ground clearance of the bottom of the housing and reduce the risk of the housing being bumped.

[0052] In some embodiments, the frame and heat exchange plate are an integrated structure.

[0053] By adopting the technical solution of this embodiment, the frame and heat exchange plate are integrated into a single structure. This integrated structure eliminates the connection interface between the frame and the heat exchange plate, reducing the risk of structural instability due to loose connections or damage to connecting components. For example, during vehicle operation, the battery device is subjected to various vibrations and impacts. If the frame and heat exchange plate are separate structures, the connection may gradually loosen, affecting the overall performance of the battery device. The integrated structure, however, can better withstand these external forces, improving the structural integrity of the battery device under complex operating conditions. Furthermore, the frame and heat exchange plate can be manufactured in a single step, reducing the number of parts and assembly steps.

[0054] In some embodiments, at least one of the first cavity and the second cavity is provided with a reinforcing beam, and at least one of the frame and the heat exchange plate is fixedly connected to the reinforcing beam.

[0055] By adopting the technical solution of this embodiment and strengthening the beam design, the structural strength of the battery device can be improved.

[0056] In some embodiments, the reinforcing beam is fixedly connected to the heat exchange plate and is an integrated structure.

[0057] By adopting the technical solution of this embodiment, the reinforcing beam and heat exchange plate are integrated into a single structure. This integrated structure eliminates the connection interface between the reinforcing beam and the heat exchange plate, reducing the risk of structural instability due to loose connections or damage to connecting components. For example, during vehicle operation, the battery device is subjected to various vibrations and impacts. If the reinforcing beam and heat exchange plate are separate structures, the connection may gradually loosen, affecting the overall performance of the battery device. The integrated structure, however, can better withstand these external forces, improving the structural integrity of the battery device under complex operating conditions. Furthermore, the reinforcing beam and heat exchange plate can be manufactured in a single step, reducing the number of parts and assembly steps.

[0058] In some embodiments, the top cover has a first wall portion and the bottom plate has a second wall portion. The first wall portion and the second wall portion are disposed opposite to each other, and the battery cell assembly is located between the first wall portion and the second wall portion. At least one of the first wall portion and the second wall portion is recessed toward the battery cell assembly to form a wiring groove for wiring on the outside of the housing and to form a receiving space for accommodating the power distribution device between the corresponding wall portion and the battery cell assembly.

[0059] By adopting the technical solution of this embodiment, the wiring trough can be used to run wire harnesses, pipes, air pipes and other components, so as to facilitate the wiring distribution of wire harnesses, pipes, air pipes and other components; the power distribution device is located in the accommodating space, which can make full use of the space inside the battery device, improve the space utilization rate inside the battery device, and improve the volumetric energy density of the battery device.

[0060] In some embodiments, the first frame includes a support and a frame, the frame being connected between the support and the second frame, and the side of the frame facing away from the support being rotatably connected to the second frame.

[0061] By adopting the technical solution of this embodiment, the frame of the battery device can be directly used as part of the first frame, which can improve the integration of the frame and the battery device and improve the structural compactness of the vehicle.

[0062] In some embodiments, the bracket has a first plate connected to one end of the bracket, the surface of the first plate being fitted to and connected to the frame.

[0063] By adopting the technical solution of this embodiment, the bracket and the frame are connected by a first plate, which fits against the frame. This increases the connection area between the bracket and the frame, improves the connection reliability between the bracket and the frame, and enhances the structural reliability of the vehicle frame. The connection between the frame and the bracket via the first plate, and the rotatable connection between the second frame and the frame, helps reduce the difficulty of installing the battery device on the vehicle frame.

[0064] In some embodiments, the bracket includes two second side beams and a plurality of second cross beams. The two second side beams are spaced apart along a second direction, and the plurality of second cross beams are spaced apart along a first direction. The second cross beams are connected between the two second side beams. The second cross beams near the frame are integral with the first plate. The second direction is the width direction of the frame.

[0065] By adopting the technical solution of this embodiment, the bracket adopts a structure of two second side beams and multiple second crossbeams, which has good structural strength, which is conducive to improving the structural strength of the frame and improving the reliability of the vehicle. In addition, the second crossbeam close to the frame is an integrated structure with the first plate, which can eliminate the connecting parts between the second crossbeam and the first plate, simplify the assembly process and reduce processing costs. The connection between the first plate and the second crossbeam has good reliability, which can enhance the overall structural strength of the frame.

[0066] In some embodiments, the bracket has a second plate on at least one side along the second direction, and the second plate is bent to form a first plate segment and a second plate segment; the plate surface of the first plate segment is attached to the side of the bracket along the second direction and connected to the bracket, and the plate surface of the second plate segment is attached to the frame and connected to the frame, wherein the second direction is the width direction of the frame.

[0067] By adopting the technical solution of this embodiment, the second plate is bent to form the first plate segment and the second plate segment. The bent second plate allows the load to be transferred bidirectionally between the two plate segments (e.g., when a lateral load is transferred from the first plate segment to the second plate segment, it is converted into a longitudinal or vertical load on the frame), thus optimizing the stress distribution. In addition, the bent structure formed by the second plate has high bending stiffness in the plane, especially in the second direction, i.e., the lateral direction of the frame, which can resist lateral impact forces or vibrations and improve the structural reliability of the frame.

[0068] In some embodiments, the second plate is provided with reinforcing ribs, which connect the first plate segment and the second plate segment.

[0069] By adopting the technical solution of this embodiment, the structural reliability of the second plate can be improved.

[0070] In some embodiments, at least one of the first frame and the second frame is fixedly connected to a battery device.

[0071] By adopting the technical solution of this embodiment, the battery device is fixedly installed on the vehicle frame, which can improve the fixing reliability of the battery device and the reliability of vehicle use. In addition, the first frame and the second frame can be rotatably connected, which can also reduce the risk of problems such as tearing or sealing failure of the battery device, and can better balance the use of the vehicle and the reliability of the battery device.

[0072] In some embodiments, the vehicle is a truck, and optionally, the truck is a heavy-duty truck.

[0073] By adopting the technical solution of this embodiment, the first and second frames of the truck can be rotatably connected, which can effectively reduce the risk of problems such as tearing and sealing failure of the battery device.

[0074] In some embodiments, the frame includes a first frame and a second frame: at least one of the first frame and the second frame is used to connect a battery device; a side portion of the first frame along a first direction is rotatably connected to the second frame; the rotation axis of the first frame and the second frame rotating relative to each other is parallel to the first direction, which is the length direction of the frame.

[0075] The vehicle frame of this embodiment includes a first frame and a second frame. The first frame is rotatably connected to the second frame on one side along a first direction, and the rotation axis of the first and second frames relative to each other is parallel to the first direction, which is the length direction of the vehicle frame. This allows the second frame to rotate relative to the first frame. When the vehicle travels on uneven roads, if the second frame twists, its rotation relative to the first frame absorbs or disperses the torsional force, reducing the torsional force transmitted from the second frame to the first frame. This reduces problems such as tearing or sealing failure of the battery device on the first frame due to torsional force. Similarly, if the first frame twists, its rotation relative to the second frame absorbs or disperses the torsional force, reducing the torsional force transmitted from the first frame to the second frame, and reducing problems such as tearing or sealing failure of the battery device on the second frame due to torsional force. Therefore, the vehicle of this embodiment can reduce problems such as tearing and sealing failure of the vehicle's battery device, improving the reliability of the battery device and the overall reliability of the vehicle.

[0076] In some embodiments, the frame also includes a pivot, through which the first frame and the second frame are connected.

[0077] By adopting the technical method of this embodiment, the first frame and the second frame are rotatably connected by a rotating shaft, which is simple in structure and easy to process and manufacture.

[0078] In some embodiments, the frame further includes a rotation limiting mechanism, which connects the first frame and the second frame, and is used to limit the rotation range between the first frame and the second frame.

[0079] By adopting the technical solution of this embodiment, the design of the rotation limit mechanism ensures that the rotation range between the first frame and the second frame is within a reasonable range, thereby improving the overall performance and safety of the frame and the vehicle.

[0080] In some embodiments, a rotation limiting mechanism is connected between the second frame and the first frame on at least one side along a second direction, where the second direction is the width direction of the frame.

[0081] By adopting the technical solution of this embodiment, the frame twists, causing rotation between the first and second frames. A rotation limiting mechanism is connected between the second frame and at least one side of the first frame along the width direction (i.e., the second direction), allowing the rotation limiting mechanism to directly restrict and constrain the relative rotation between the first and second frames, reducing instability or damage to the vehicle structure caused by excessive rotation. For example, when the vehicle makes a sharp turn or encounters uneven road surfaces, the frame may twist in the width direction. The rotation limiting mechanism can then limit rotation and protect the frame and other components of the vehicle.

[0082] In some embodiments, the rotation limiting mechanism includes a pull rod, a first connecting seat, and a second connecting seat. The first connecting seat is connected to a first frame, and the second connecting seat is connected to the side of the second frame along a second direction. The two ends of the pull rod are respectively hinged to the first connecting seat and the second connecting seat. The hinge axis between the pull rod and the first connecting seat is parallel to the second direction, and the hinge axis between the pull rod and the second connecting seat is parallel to the first direction.

[0083] By adopting the technical solution of this embodiment, the rotation limiting mechanism uses a structure of a pull rod, a first connecting seat, and a second connecting seat. This allows the rotation limiting mechanism to more flexibly adapt to the relative rotation between the first and second frames, reducing the risk of problems such as tearing or seal failure of the battery device. When the first and second frames exceed a preset rotation range, the pull rod can limit further rotation between them, reducing instability or damage to the vehicle structure caused by excessive rotation. The rotation limiting mechanism, with its pull rod, first connecting seat, and second connecting seat structure, is simple in structure and has good reliability, making it suitable for use in vehicles with high load capacities.

[0084] In some embodiments, the first frame includes a support and a frame, the frame being connected between the support and the second frame, the side of the frame facing away from the support being rotatably connected to the second frame, and the frame being able to serve as at least part of the housing of the battery device.

[0085] By adopting the technical solution of this embodiment, the battery device frame can be directly used as a component of the vehicle frame, which can improve the integration of the vehicle frame and the battery device and improve the structural compactness of the vehicle.

[0086] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0087] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0088] Figure 1 The diagram shows the structural features of a vehicle provided in some embodiments of this application.

[0089] Figure 2 Schematic diagram of vehicle structure provided for some embodiments of this application Figure 1 .

[0090] Figure 3 for Figure 2 The diagram shows the structure of the vehicle. Figure 2 .

[0091] Figure 4 This is a schematic diagram of the structure of the vehicle frame and battery device provided in some embodiments of this application.

[0092] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0093] Figure 6 for Figure 4 The diagram shows the disassembled frame and battery assembly. Figure 1 .

[0094] Figure 7 for Figure 6 A magnified view of a section at point B.

[0095] Figure 8 for Figure 6 A magnified view of a section at point C.

[0096] Figure 9 for Figure 8 Schematic diagram of the battery device shown Figure 1 .

[0097] Figure 10 for Figure 8 Schematic diagram of the battery device shown Figure 2 .

[0098] Figure 11 For along Figure 10 A cross-sectional diagram of DD.

[0099] Figure 12 The diagram shows the structure of a single battery cell provided in some embodiments of this application.

[0100] Figure 13 for Figure 9 The diagram shows the structure of the battery device after the top cover is hidden.

[0101] Figure 14 for Figure 4 The diagram shows the structure of the vehicle frame and battery assembly. Figure 2 .

[0102] The following are the labeling elements in the figure:

[0103] 1000, Vehicle; 100, Frame; 110, First frame; 1101, First connecting part; 1102, First pressure cap; 111, Bracket; 1111, First plate; 1112, Second side beam; 1113, Second crossbeam; 1114, Second plate; 11141, First plate segment; 11142, Second plate segment; 1115, Reinforcing rib; 120, Second frame; 1201, Second connecting part; 1202, Second pressure cap; 1 21. First side beam; 122. First crossbeam; 130. Rotating shaft; 131. First limiting structure; 1311. First protrusion; 1312. Second protrusion; 132. Second limiting structure; 1321. Third protrusion; 141. First grease nipple; 142. Second grease nipple; 150. Rotation limiting mechanism; 151. Pull rod; 1511. First hinge part; 15111. First hinge hole; 1512. Straight segment; 1513. Arc segment ; 1514, Second hinge part; 15141, Second hinge hole; 152, First connecting seat; 1521, First hinge shaft; 153, Second connecting seat; 1531, Second hinge shaft; 200, Battery device; 2001, Assembly space; 2002, First cavity; 2003, Second cavity; 210, Housing; 211, Top cover; 2111, First wall part; 2112, Wiring trough; 2113, Accommodation space; 212, Base plate ; 2121, Second wall section; 213, Frame; 2131, Front beam; 2132, Rear beam; 2133, Left beam; 2134, Right beam; 220, Battery cell assembly; 221, Battery cell; 2211, First pressure relief mechanism; 2212, Second pressure relief mechanism; 230, Heat exchange plate; 231, Heat exchange channel; 240, Reinforcing beam; 250, Power distribution device; 300, Controller; 400, Motor; 500, Cab. Detailed Implementation

[0104] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the appendices in the embodiments of this application will be described below. Figures 1-14 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0105] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature.

[0106] In the description of the embodiments of this application, "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0107] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0108] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0109] In the description of this application, it should be understood that the terms "inner", "outer", "side", "upper", "bottom", "front", "rear", etc., indicating the orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0110] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0111] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example in the figure. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0112] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0113] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0114] In the automotive industry, new energy vehicles have become an important development direction, especially heavy-duty trucks, which are increasingly adopting battery power. In some heavy-duty trucks, the battery unit is typically fixed to the truck's frame using bolts or similar methods. However, when heavy-duty trucks operate in harsh conditions with significant road undulations, the chassis suspension adjusts its posture according to the road surface, transmitting stress to the frame. This torsion can then be directly transmitted to the battery unit, posing a risk of long-term damage such as battery unit cracking due to torsion and failure of the battery housing seal. For example, if a heavy-duty truck uses a unibody frame with the battery unit fixed to the front, torsion at the rear of the frame can transmit this deformation to the battery unit at the front, potentially causing it to crack. Alternatively, if a heavy-duty truck uses a multi-section frame with multiple sections fixedly connected, and the battery unit is fixed to a section in the middle, torsion at the rear can also transmit this deformation to the battery unit in the middle, potentially leading to torsion cracking.

[0115] For example, if the battery pack housing is rigidly connected to the vehicle frame with bolts, the torsion of the vehicle frame will be transmitted to the housing, which will cause excessive stress on the housing and the risk of long-term torsional fatigue failure. It will also affect the sealing reliability of the fixing interface between the housing and the cover.

[0116] To address this issue, several technical solutions have been proposed, such as: the entire battery unit is movably connected to the vehicle frame, reducing the transmission of torsional deformation of the vehicle frame to the battery unit. However, since the battery unit is movable relative to the vehicle frame, it is not conducive to improving the stability and reliability of the battery unit. In addition, the connection structure of this method is complex and does not help to reduce the manufacturing cost of the vehicle.

[0117] Based on this, the vehicle provided in this application embodiment, through the relative rotation between the first frame and the second frame, allows the first frame to rotate relative to the second frame when the first frame is torsional, reducing the torsional force transmitted from the first frame to the second frame and reducing problems such as cracking and sealing failure of the battery device on the second frame. Similarly, when the second frame is torsional, the second frame can rotate relative to the first frame, reducing the torsional force transmitted from the second frame to the first frame and reducing problems such as cracking and sealing failure of the battery device on the first frame. The vehicle in this application embodiment can reduce the torsional force transmitted from the frame to the battery device, reduce the risk of damage to the battery device, improve the reliability of the battery device, and improve the reliability of the vehicle. In addition, using a rotating connection between the first and second frames also helps to reduce the installation difficulty of the battery device and the frame, and helps to reduce the cost of the vehicle.

[0118] To illustrate the technical solutions provided by the embodiments of this application, a detailed description is provided below in conjunction with specific drawings and embodiments. In the drawings, the X direction is the length direction of the vehicle frame, the Y direction is the width direction of the vehicle frame, and the Z axis is the height direction of the vehicle frame.

[0119] The vehicles disclosed in this application can be used, but are not limited to, passenger vehicles, commercial freight vehicles, and other types of vehicles.

[0120] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a new energy vehicle, such as a pure electric vehicle, a battery-swapping hybrid electric vehicle, or a battery-swapping range-extended electric vehicle. The vehicle 1000 includes a battery device 200. The battery device 200 can be used to power the vehicle 1000; for example, the battery device 200 can serve as the operating power source for the vehicle 1000's electrical system, such as meeting the power requirements for starting, navigation, and operation of the vehicle 1000.

[0121] The vehicle 1000 may also include a controller 300 and a motor 400. The controller 300 is used to control the battery device 200 to supply power to the motor 400, for example, for the power needs of the vehicle 1000 during startup, navigation and driving.

[0122] In some embodiments of this application, the battery device 200 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0123] Figure 2 Structural diagram of vehicle 1000 provided for some embodiments of this application Figure 1 . Figure 3 for Figure 2 The structural diagram of vehicle 1000 shown Figure 2 . Figure 4 This is a schematic diagram of the structure of the vehicle frame 100 and battery device 200 provided in some embodiments of this application. Figure 5 for Figure 4 A magnified view of a portion of point A in the middle. Figure 6 for Figure 4 Disassembly diagram of the frame 100 and battery assembly 200 shown Figure 1 . Figure 7 for Figure 6 A magnified view of a section at point B. Figure 8 for Figure 6 A magnified view of a section at point C.

[0124] In some embodiments, the vehicle 1000 includes a battery device 200 and a frame 100. The frame 100 includes a first frame 110 and a second frame 120. At least one of the first frame 110 and the second frame 120 is connected to the battery device 200. One side of the first frame 110 is rotatably connected to the second frame 120 along a first direction. The axis of rotation of the first frame 110 and the second frame 120 relative to each other is parallel to the first direction, which is the length direction of the frame 100.

[0125] The frame 100 can be a frame structure spanning the front and rear axles of the vehicle 1000, commonly known as a main beam, and is the base of the vehicle 1000. The function of the frame 100 can include supporting and connecting the various assemblies of the vehicle 1000, keeping the assemblies in a relatively correct position, and bearing various loads inside and outside the vehicle 1000. The battery device 200 can be indirectly mounted on the frame 100 through support members, or the battery device 200 can be directly mounted on the frame 100 through mounting members, connectors, or other structural members.

[0126] The frame 100 has a length direction and a width direction. The first direction is the length direction of the frame 100, and the second direction is the width direction of the frame 100. The length of the frame 100 can be greater than the width of the frame 100, and the length of the frame 100 can also be less than or equal to the width of the frame 100. The length direction of the frame 100 is parallel to the length direction of the vehicle 1000, and the width direction of the frame 100 is parallel to the width direction of the vehicle 1000.

[0127] The frame 100 includes a first frame 110 and a second frame 120. The first frame 110 and the second frame 120 are two separately set frame structures. The first frame 110 and the second frame 120 are distributed along a first direction. The first frame 110 is in front and can be called the front frame 100. The second frame 120 is behind and can be called the rear frame 100. Alternatively, the first frame 110 is behind and can be called the rear frame 100. The second frame 120 is in front and can be called the front frame 100.

[0128] In some examples, vehicle 1000 is a truck, which may include a cab 500, a first frame 110 for carrying the cab 500, and a second frame 120 primarily for carrying cargo (e.g., cargo box, goods to be transported, etc.). The first frame 110 is located below the cab 500, and the second frame 120 is located below the cargo box to be able to carry the cargo box and the goods inside it.

[0129] In some examples, the front of the first frame 110 is located below the cab 500, and the rear of the first frame 110 can also extend under the cargo box to make full use of the space of the frame 100, increase the size of the cargo box, and increase the cargo capacity of the vehicle 1000.

[0130] In some examples, the first frame 110 is rigidly connected to the wheel or connected to the wheel via suspension, the second frame 120 is rigidly connected to the wheel or connected to the wheel via suspension, and the motor 400 drives the wheel to rotate, thereby enabling the vehicle 1000 to move.

[0131] In some examples, the first frame 110 and the second frame 120 can be frame structures. The first frame 110 and the second frame 120 are spliced ​​together by multiple crossbeams and longitudinal beams. The first frame 110 and the second frame 120 are spliced ​​together by beams, which has good structural reliability, good load-bearing reliability for items, and good reliability of vehicle 1000 in use. In addition, the first frame 110 and the second frame 120 are spliced ​​together by multiple beams, which is simple to manufacture, convenient to process and manufacture, and reduces the manufacturing cost of vehicle 1000.

[0132] The battery device 200 can be installed on the first frame 110 or the second frame 120, or both the first frame 110 and the second frame 120 can be equipped with the battery device 200.

[0133] One side of the first frame 110, distributed along a first direction, is rotatably connected to the second frame 120. The rotation axis of the first frame 110 and the second frame 120 relative to each other is parallel to the first direction, which is the length direction of the frame 100. It can be understood that the first frame 110 and the second frame 120 are arranged along the first direction, and the side of the first frame 110 facing the second frame 120 is rotatably connected to the second frame 120, meaning the second frame 120 can rotate relative to the first frame 110. The rotation axis of the first frame 110 relative to the second frame 120 is parallel to the first direction, which is the length direction of the frame 100, and the second frame 120 can swing up and down relative to the first frame 110.

[0134] Considering factors such as manufacturing errors of components, the rotation axis of the first frame 110 relative to the second frame 120 does not need to be completely parallel to the first direction. It is sufficient that the rotation axis is parallel or approximately parallel to the first direction. For example, the angle between the rotation axis and the first direction is within the range of 0° to 10°.

[0135] In this embodiment of the vehicle 1000, during use, the frame 100 carries goods, and the battery device 200 provides electrical energy to the vehicle 1000, thereby driving the vehicle 1000. The frame 100 includes a first frame 110 and a second frame 120. The first frame 110 is rotatably connected to the second frame 120 along a first direction, and the rotation axis of the first frame 110 and the second frame 120 relative to each other is parallel to the first direction, which is the length direction of the frame 100. This allows the second frame 120 to rotate relative to the first frame 110. Thus, when the vehicle 1000 travels on an undulating road surface, if the second frame 120 twists, the second frame 120 can rotate relative to the first frame 110 to absorb or disperse the twist. The second frame 120 can reduce the torsional force transmitted from the second frame 120 to the first frame 110, thereby reducing problems such as tearing and sealing failure of the battery device 200 on the first frame 110 due to torsional force. Similarly, if the first frame 110 is torsion, the first frame 110 can rotate relative to the second frame 120 to absorb or disperse the torsional force, reducing the torsional force transmitted from the first frame 110 to the second frame 120, and reducing problems such as tearing and sealing failure of the battery device 200 on the second frame 120 due to torsional force. Therefore, the vehicle 1000 of this application embodiment can reduce problems such as tearing and sealing failure of the battery device 200 of the vehicle 1000, which is beneficial to improving the reliability of the battery device 200 and the reliability of the vehicle 1000.

[0136] In some embodiments, the frame 100 further includes a pivot 130, through which the first frame 110 and the second frame 120 are connected.

[0137] The rotating shaft 130 refers to a component used for rotatably connecting the first frame 110 and the second frame 120. The first frame 110 can rotate relative to the second frame 120 around the axis of the rotating shaft 130, thereby realizing the rotatable connection between the first frame 110 and the second frame 120. The rotating shaft 130 has a cylindrical structure, and the axis of the rotating shaft 130 is the axis of rotation of the first frame 110 and the second frame 120 relative to each other.

[0138] In some examples, one end of the rotating shaft 130 is fixedly connected to the first frame 110, and the other end of the rotating shaft 130 is rotatably connected to the second frame 120. The second frame 120 rotates relative to the rotating shaft 130, thereby realizing the rotatable connection between the first frame 110 and the second frame 120. The rotating shaft 130 and the first frame 110 can be fixedly connected by means of interference fit, screw connection, snap-fit, etc., and the rotating shaft 130 and the first frame 110 can also be an integrated structure.

[0139] In some examples, one end of the rotating shaft 130 is rotatably connected to the first frame 110, and the other end of the rotating shaft 130 is fixedly connected to the second frame 120. The first frame 110 rotates relative to the rotating shaft 130, thereby realizing the rotatable connection between the first frame 110 and the second frame 120. The rotating shaft 130 and the second frame 120 can be fixedly connected by means of interference fit, screw connection, snap-fit, etc., and the rotating shaft 130 and the second frame 120 can also be an integrated structure.

[0140] In some examples, the two ends of the pivot 130 are rotatably connected to the first frame 110 and the second frame 120, respectively, with the second frame 120 rotating relative to the pivot 130, and / or the first frame 110 rotating relative to the pivot 130, thereby achieving the rotatable connection between the first frame 110 and the second frame 120.

[0141] By adopting the technical method of this embodiment, the first frame 110 and the second frame 120 are rotatably connected by the rotating shaft 130, which has a simple structure and is easy to process and manufacture.

[0142] In some embodiments, the first frame 110 has a first rotating hole, and one end of the rotating shaft 130 is rotatably inserted into the first rotating hole along a first direction.

[0143] The first rotating hole can refer to the hole structure of the first frame 110. Among the two opposite ends of the rotating shaft 130 distributed along the first direction, one end passes through the first rotating hole, and the rotating shaft 130 can rotate within the first rotating hole.

[0144] In some examples, the pivot 130 can be clearance-fitted with the first rotating hole, and the first frame 110 can rotate about the axis of the pivot 130, thereby realizing the rotational connection between the first frame 110 and the second frame 120.

[0145] In some examples, the rotating shaft 130 can be mounted in the first rotating hole via a bearing to improve the smoothness of the rotation of the first frame 110 around the rotating shaft 130, thereby better absorbing or dispersing torsional forces and effectively reducing the risk of the battery device 200 being torn or experiencing seal failure. Of course, the fitting method between the rotating shaft 130 and the first rotating hole can also be other methods.

[0146] By adopting the technical solution of this embodiment, the rotating shaft 130 is inserted into the first rotating hole, thereby realizing the rotational connection between the first frame 110 and the second frame 120. The assembly method of the rotating shaft 130 and the first rotating hole is simple, which helps to reduce the manufacturing cost of the frame 100.

[0147] In some embodiments, the frame 100 has a first limiting structure 131 for limiting the movement of the shaft 130 in a first rotation hole along a first direction.

[0148] The first limiting structure 131 can refer to a structure used to limit the movement of the rotating shaft 130 within the first rotating hole along a first direction. The first limiting structure 131 can limit the axial movement of the rotating shaft 130; the first limiting structure 131 can completely prevent the rotating shaft 130 from moving along the first direction; or, the rotating shaft 130 can move within a preset range along the first direction, and the rotating shaft 130 cannot be dislodged from the first rotating hole. The first limiting structure 131 can be, but is not limited to, a limiting pin, a limiting block, or other structure disposed on the first frame 110 or the rotating shaft 130.

[0149] By adopting the technical solution of this embodiment, the first limiting structure 131 can restrict the movement of the rotating shaft 130 along the first direction, prevent the rotating shaft 130 from coming out of the first rotating hole, improve the connection reliability of the first frame 110 and the second frame 120, and also help to increase the load capacity of the vehicle 1000.

[0150] In some embodiments, the first frame 110 has a first connecting portion 1101 and a first pressure cover 1102, the first pressure cover 1102 is fixedly connected to the first connecting portion 1101, and the first pressure cover 1102 and the first connecting portion 1101 surround to form a first rotating hole.

[0151] The first pressure cap 1102 can refer to a component that can cover the end of the rotating shaft 130. The middle part of the first pressure cap 1102 covers the end of the rotating shaft 130, and the two ends of the first pressure cap 1102 extend out from both sides of the rotating shaft 130 to be fixedly connected to the first connecting part 1101, thereby fixing the rotating shaft 130 between the first pressure cap 1102 and the first connecting part 1101. The first pressure cap 1102 and the first connecting part 1101 are connected by welding, bolting, riveting, or other methods.

[0152] The first connecting part 1101 can refer to the part of the first frame 110 used to connect with the rotating shaft 130. For example, the first connecting part 1101 can refer to a protruding structure formed on the surface of the first frame 110 facing the first frame 110. The design of the protruding structure can facilitate connection with the rotating shaft 130 and the first pressure cover 1102. The rotational connection between the rotating shaft 130 and the first frame 110 is simple and helps to reduce the manufacturing cost of the frame 100. The lower part of the protruding structure is provided with a reinforcing structure (e.g., reinforcing rib, reinforcing plate, etc.), which improves the structural stability of the first connecting part 1101, improves the reliability of the rotational connection between the rotating shaft 130 and the first frame 110, and improves the reliability of the vehicle 1000 in use.

[0153] There are several ways in which the first pressure cap 1102 and the first connecting part 1101 surround and form the first rotating hole.

[0154] For example, the first pressure cap 1102 is bent to form a half hole, and the first connecting part 1101 is also provided with a half hole. The first pressure cap 1102 and the first connecting part 1101 are connected, and the two half holes together form the first rotating hole.

[0155] For example, the first pressure cap 1102 is bent to form a connecting hole with an opening on one side. The surface of the first connecting part 1101 is a plane. The plane of the first connecting part 1101 covers the opening of the connecting hole. The hole wall of the connecting hole and the plane together form a first rotating hole. The plane can prevent the rotating shaft 130 from coming out of the opening of the connecting hole.

[0156] For example, the first connecting portion 1101 has a connecting hole with an opening on one side, and the first pressure cover 1102 is a flat plate structure. The first pressure cover 1102 covers the opening of the connecting hole, and the hole wall of the connecting hole and the surface of the first pressure cover 1102 together form a first rotating hole. The first pressure cover 1102 can prevent the rotating shaft 130 from coming out of the opening of the connecting hole. Of course, in other examples, the first pressure cover 1102 and the first connecting portion 1101 can also be other structures.

[0157] By adopting the technical solution of this embodiment, during assembly, the end of the rotating shaft 130 can be first installed on the first connecting part 1101, and then the first pressure cover 1102 can be installed on the end of the rotating shaft 130. After that, the first pressure cover 1102 and the first connecting part 1101 are fixedly connected, thereby rotating the end of the rotating shaft 130 into the first rotating hole. This installation method is simple and helps to reduce the installation difficulty of the first frame 110 and the rotating shaft 130, and reduce the assembly cost of the frame 100.

[0158] In some embodiments, the first limiting structure 131 includes a first protrusion 1311, which is disposed on the rotating shaft 130 and protrudes from the outer peripheral surface of the rotating shaft 130. The first protrusion 1311 is disposed on the side of the first pressure cover 1102 facing away from the second frame 120, and the first protrusion 1311 is used to abut against the end face of the first pressure cover 1102 facing away from the second frame 120.

[0159] The first protrusion 1311 can refer to the protruding structure at the end of the rotating shaft 130. The end of the rotating shaft 130 passes through the first rotating hole and faces away from the side of the second frame 120. The end of the rotating shaft 130 that passes through the first rotating hole is provided with the first protrusion 1311. The first protrusion 1311 protrudes from the outer peripheral surface of the rotating shaft 130 and the inner wall surface of the first pressure cover 1102. The first protrusion 1311 can abut against the end face of the first pressure cover 1102 facing away from the second frame 120. By abutting against the end face of the first pressure cover 1102, the rotating shaft 130 is prevented from coming out of the first rotating hole.

[0160] The structure of the first protrusion 1311 can be varied.

[0161] For example, the first protrusion 1311 is arranged in a ring around the axis of the pivot 130 to form an annular protrusion.

[0162] For example, the first protrusion 1311 may also rotate less than one revolution around the axis of the pivot 130, such as half a revolution or 5°, 10°, etc. Of course, in other examples, the first protrusion 1311 may also be other structures.

[0163] By adopting the technical solution of this embodiment, the first protrusion 1311 of the rotating shaft 130 abuts against the end face of the first pressure cover 1102 facing away from the second frame 120, thereby playing the role of axial positioning of the rotating shaft 130 and preventing the rotating shaft 130 from coming out of the first rotating hole; the protrusion structure limits the position, and the first limiting structure 131 has a simple structure and good blocking effect, which is conducive to improving the reliability of the connection between the first frame 110 and the rotating shaft 130.

[0164] In some embodiments, the first limiting structure 131 includes a second protrusion 1312, which is disposed on the rotating shaft 130 and protrudes from the outer peripheral surface of the rotating shaft 130. The second protrusion 1312 is disposed on the side of the first pressure cover 1102 facing the second frame 120, and the second protrusion 1312 is used to abut against the end face of the first pressure cover 1102 facing the second frame 120.

[0165] The second protrusion 1312 can refer to the protruding structure in the middle of the rotating shaft 130. The second protrusion 1312 is provided in the middle of the rotating shaft 130. The second protrusion 1312 protrudes from the outer peripheral surface of the rotating shaft 130 and the inner wall surface of the first pressure cover 1102. A first receiving groove is formed between the first protrusion 1311 and the second protrusion 1312. At least a portion of the first pressure cover 1102 is accommodated in the first receiving groove. The two end faces of the first pressure cover 1102 can respectively abut against the first protrusion 1311 and the second protrusion 1312, thereby restricting the axial movement of the rotating shaft 130 in the first rotating hole.

[0166] The structure of the second protrusion 1312 can be varied.

[0167] For example, the second protrusion 1312 is arranged in a ring around the axis of the pivot 130 to form an annular protrusion.

[0168] For example, the second protrusion 1312 may also rotate less than one revolution around the axis of the pivot 130, such as half a revolution or 5°, 10°, etc. Of course, in other examples, the second protrusion 1312 may also be other structures.

[0169] By adopting the technical solution of this embodiment, the second protrusion 1312 can limit the length of the shaft 130 protruding from the first rotating hole and out of the first pressure cover 1102 facing away from the second frame 120, thereby reducing the risk of collision between the first frame 110 and the second frame 120 due to the excessive length of the shaft 130 protruding from the first rotating hole, and improving the stability of the vehicle 1000 operation; in addition, the cooperation of the first protrusion 1311 and the second protrusion 1312 can realize the axial positioning of the shaft 130 in the first rotating hole, improve the connection stability of the first frame 110 and the shaft 130, and improve the reliability of the vehicle frame 100.

[0170] In some embodiments, at least one of the first pressure cap 1102 and the first connecting portion 1101 is provided with a first oil injection nozzle 141 for injecting lubricating oil into the first rotating hole.

[0171] The first grease nipple 141 refers to a grease nipple used to inject lubricating oil into specific parts of equipment or machinery. The grease nipple includes a body, a valve core, and seals. The body is the main structure of the grease nipple, generally made of metal or plastic, with a specific shape and size, used to connect to an oil pipe or grease gun and guide the lubricating oil to the part requiring lubrication. The body usually has internal or external threads for connection with other components. The valve core is located inside the body and controls the flow of lubricating oil. The valve core typically uses a spring-loaded design; when pressure is applied by the grease gun or oil pipe, the valve core is pushed open, allowing lubricating oil to enter the equipment through the grease nipple; when the pressure is released, the valve core automatically closes under the action of the spring to prevent lubricating oil leakage. Seals are installed at the connection of the grease nipple and around the valve core. The seals are made of materials such as rubber and fluororubber, and these seals can maintain good sealing performance under different working environments.

[0172] In some examples, the first cap 1102 is provided with a first oil inlet 141.

[0173] In some examples, the first connection 1101 is provided with a first oil nozzle 141.

[0174] In some examples, the first cap 1102 and the first connecting portion 1101 are provided with a first oil nozzle 141.

[0175] By adopting the technical solution of this embodiment, lubricating oil is injected into the first rotating hole through the first grease nipple 141, and the rotating connection between the first frame 110 and the rotating shaft 130 has a good lubrication effect. This can better realize the smooth rotation of the first frame 110 relative to the second frame 120 when the frame 100 is subjected to torsional force, thereby more effectively reducing the torsional force transmitted to the battery device 200, enhancing the protection effect of the battery device 200, and improving the overall safety and reliability of the vehicle 1000.

[0176] In some embodiments, the second frame 120 has a second rotating hole, and the other end of the rotating shaft 130 along the first direction is rotatably inserted into the second rotating hole.

[0177] The second rotating hole can refer to the hole structure of the second frame 120; of the two opposite ends of the rotating shaft 130 distributed along the first direction, one end passes through the first rotating hole and the other end passes through the second rotating hole, and the rotating shaft 130 can rotate in the second rotating hole.

[0178] In some examples, the pivot 130 can be clearance-fitted with the second rotating hole, and the second frame 120 can rotate about the axis of the pivot 130, thereby realizing the rotational connection between the second frame 120 and the second frame 120.

[0179] In some examples, the pivot 130 can be mounted in the second rotating hole via a bearing to improve the smoothness of the rotation of the second frame 120 around the pivot 130, thereby better absorbing or dispersing torsional forces and effectively reducing the risk of the battery device 200 being torn or experiencing seal failure. Of course, the pivot 130 and the second rotating hole can also be fitted in other ways.

[0180] By adopting the technical solution of this embodiment, the rotating shaft 130 is inserted into the second rotating hole, thereby realizing the rotational connection between the first frame 110 and the second frame 120. The assembly method of the rotating shaft 130 and the second rotating hole is simple, which helps to reduce the manufacturing cost of the frame 100.

[0181] In some embodiments, the frame 100 has a second limiting structure 132 for limiting the movement of the shaft 130 within the second rotation hole in a first direction.

[0182] The second limiting structure 132 can refer to a structure used to limit the movement of the rotating shaft 130 within the second rotating hole along the first direction. The second limiting structure 132 can limit the axial movement of the rotating shaft 130; the second limiting structure 132 can completely prevent the rotating shaft 130 from moving along the first direction; or, the second limiting structure 132 can limit the rotating shaft 130 from moving within a preset range along the first direction, and the rotating shaft 130 cannot be dislodged from the second rotating hole. The second limiting structure 132 can be, but is not limited to, a limiting pin, a limiting block, or other structure disposed on the second frame 120 or the rotating shaft 130.

[0183] By adopting the technical solution of this embodiment, the second limiting structure 132 can restrict the movement of the rotating shaft 130 along the first direction, which can reduce the risk of the rotating shaft 130 coming out of the second rotating hole, improve the connection reliability of the first frame 110 and the second frame 120, and also help to increase the load capacity of the vehicle 1000.

[0184] In some embodiments, the second frame 120 has a second connecting portion 1201 and a second pressure cover 1202, the second pressure cover 1202 is fixedly connected to the second connecting portion 1201, and the second pressure cover 1202 and the second connecting portion 1201 surround to form a second rotating hole.

[0185] The second cover 1202 can refer to a component that can cover the end of the rotating shaft 130. The middle part of the second cover 1202 covers the end of the rotating shaft 130, and the two ends of the second cover 1202 extend out from both sides of the rotating shaft 130 to be fixedly connected to the second connecting part 1201, thereby fixing the rotating shaft 130 between the second cover 1202 and the second connecting part 1201. The second cover 1202 and the second connecting part 1201 are connected by welding, bolting, riveting, or other methods.

[0186] The second connecting portion 1201 may refer to the part of the second frame 120 used for connecting with the pivot 130. For example, the second connecting portion 1201 may refer to a part of the crossbeam of the second frame 120. The second connecting portion 1201 is recessed relative to the crossbeam, thereby forming a recessed space that can be used to accommodate the second cover 1202, reducing the risk of damage caused by the second cover 1202 protruding from the second frame 120.

[0187] There are several ways in which the second pressure cap 1202 and the second connecting part 1201 surround and form the second rotating hole.

[0188] For example, the second pressure cap 1202 is bent to form a half-hole, and the second connecting part 1201 is also provided with a half-hole. The second pressure cap 1202 and the second connecting part 1201 are connected, and the two half-holes together form a second rotating hole. For example, the half-hole can be a semi-circular hole.

[0189] For example, the second pressure cap 1202 is bent to form a connecting hole with an opening on one side, the surface of the second connecting part 1201 is a plane, the plane of the second connecting part 1201 covers the opening of the connecting hole, the hole wall of the connecting hole and the plane together form a second rotating hole, and the plane can prevent the rotating shaft 130 from coming out of the opening of the connecting hole.

[0190] For example, the second connecting portion 1201 has a connecting hole with an opening on one side, and the second pressure cover 1202 is a flat plate structure. The second pressure cover 1202 covers the opening of the connecting hole, and the hole wall of the connecting hole and the surface of the second pressure cover 1202 together form a second rotating hole. The second pressure cover 1202 can prevent the rotating shaft 130 from coming out of the opening of the connecting hole. Of course, in other examples, the second pressure cover 1202 and the second connecting portion 1201 can also have other structures.

[0191] By adopting the technical solution of this embodiment, during assembly, the end of the rotating shaft 130 can be first installed on the second connecting part 1201, and then the second pressure cover 1202 can be installed on the end of the rotating shaft 130. After that, the second pressure cover 1202 and the second connecting part 1201 are fixedly connected, thereby rotating the end of the rotating shaft 130 into the second rotating hole. This installation method is simple and helps to reduce the installation difficulty of the second frame 120 and the rotating shaft 130, and reduce the assembly cost of the frame 100.

[0192] In some embodiments, the second limiting structure 132 includes a third protrusion 1321, which is disposed on the rotating shaft 130 and protrudes from the outer peripheral surface of the rotating shaft 130. The third protrusion 1321 is disposed on the side of the second pressure cover 1202 facing away from the first frame 110, and the third protrusion 1321 is used to abut against the end face of the second pressure cover 1202 facing away from the first frame 110.

[0193] The third protrusion 1321 can refer to the protruding structure at the end of the rotating shaft 130. The end of the rotating shaft 130 passes through the second rotating hole and faces away from the side of the first frame 110. The end of the rotating shaft 130 that passes through the second rotating hole is provided with a third protrusion 1321. The third protrusion 1321 protrudes from the outer peripheral surface of the rotating shaft 130 and the inner wall surface of the second pressure cover 1202. The third protrusion 1321 can abut against the end face of the second pressure cover 1202 facing away from the first frame 110. By abutting against the end face of the second pressure cover 1202, the risk of the rotating shaft 130 coming out of the second rotating hole is prevented.

[0194] The structure of the third protrusion 1321 can be varied.

[0195] For example, the third protrusion 1321 is arranged in a ring around the axis of the pivot 130 to form an annular protrusion.

[0196] For example, the third protrusion 1321 may also rotate less than one revolution around the axis of the pivot 130, such as half a revolution or 5°, 10°, etc. Of course, in other examples, the third protrusion 1321 may also be other structures.

[0197] By adopting the technical solution of this embodiment, the third protrusion 1321 of the rotating shaft 130 abuts against the end face of the second pressure cover 1202 facing away from the first frame 110, thereby playing the role of axial positioning of the rotating shaft 130 and preventing the rotating shaft 130 from coming out of the second rotating hole; the protrusion structure limits the second limiting structure 132, which has a simple structure and good blocking effect, which is conducive to improving the reliability of the connection between the second frame 120 and the rotating shaft 130.

[0198] In some embodiments, the second limiting structure 132 includes a second protrusion 1312, which is disposed on the rotating shaft 130 and protrudes from the outer peripheral surface of the rotating shaft 130. The second protrusion 1312 is disposed on the side of the second pressure cover 1202 facing the first frame 110, and the second protrusion 1312 is used to abut against the end face of the second pressure cover 1202 facing the first frame 110.

[0199] A second receiving groove is formed between the third protrusion 1321 and the second protrusion 1312. At least a portion of the second pressure cover 1202 is accommodated within the second receiving groove. The two end faces of the second pressure cover 1202 can respectively abut against the third protrusion 1321 and the second protrusion 1312, thereby restricting the axial movement of the rotating shaft 130 within the second rotating hole. The second protrusion 1312 is located between the first pressure cover 1102 and the second pressure cover 1202, which also allows the first frame 110 and the second frame 120 to maintain a certain distance, reducing their collision.

[0200] By adopting the technical solution of this embodiment, the second protrusion 1312 can limit the length of the shaft 130 protruding from the second rotating hole and out of the second pressure cover 1202 away from the first frame 110, reducing the risk of collision between the first frame 110 and the second frame 120 due to the excessive length of the shaft 130 protruding from the second rotating hole, and improving the stability of the vehicle 1000 operation; in addition, the cooperation of the third protrusion 1321 and the second protrusion 1312 can realize the axial positioning of the shaft 130 in the second rotating hole, improve the connection stability of the second frame 120 and the shaft 130, and improve the reliability of the vehicle frame 100.

[0201] In some embodiments, at least one of the second pressure cap 1202 and the second connecting portion 1201 is provided with a second oil injection nozzle 142 for injecting lubricating oil into the second rotating hole.

[0202] The second grease nipple 142 can refer to a grease nipple used to inject lubricating oil into specific parts of equipment or machinery.

[0203] In some examples, the second cap 1202 is provided with a second oil inlet 142.

[0204] In some examples, the second connection 1201 is provided with a second oil nozzle 142.

[0205] In some examples, the second cap 1202 and the second connection 1201 are provided with a second oil nozzle 142.

[0206] By adopting the technical solution of this embodiment, lubricating oil is injected into the second rotating hole through the second grease nipple 142, and the rotating connection between the second frame 120 and the rotating shaft 130 has a good lubrication effect. This can better realize the smooth rotation of the first frame 110 relative to the second frame 120 when the frame 100 is subjected to torsional force, thereby more effectively reducing the torsional force transmitted to the battery device 200, enhancing the protection effect of the battery device 200, and improving the overall safety and reliability of the vehicle 1000.

[0207] In some embodiments, the second frame 120 includes two first side beams 121 and a plurality of first cross beams 122. The two first side beams 121 are spaced apart along a second direction, and the plurality of first cross beams 122 are spaced apart along a first direction. The first cross beams 122 are connected between the two first side beams 121. The first cross beams 122 near the first frame 110 have a second rotating hole at the middle part along the second direction, which is the width direction of the frame 100.

[0208] The first side beam 121 can refer to a component on one side of the frame 100 along the second direction. Two first side beams 121 are arranged at intervals along the width direction (i.e., the second direction) of the frame 100. The first side beam 121 is one of the main support structures of the second frame 120, bearing part of the load of the frame 100 in the width direction, and providing connection support points for other components (such as the first crossbeam 122).

[0209] The first crossbeam 122 can refer to a component of the frame 100 located between two first side beams 121. Multiple first crossbeams 122 are arranged at intervals along the length direction (i.e., the first direction) of the frame 100 and connected between the two first side beams 121. The first crossbeams 122 serve to connect the two first side beams 121, transferring and distributing the load between them, thus forming a stable frame 213 structure for the second frame 120. Simultaneously, the first crossbeams 122 also provide mounting positions and support for other components on the frame 100 (such as the battery unit 200, cargo box, etc.). The design of multiple first crossbeams 122 arranged at intervals can rationally distribute the load according to the stress conditions and functional requirements of different parts of the frame 100, improving the overall performance of the frame 100. The number of first crossbeams 122 can be two, three, or more.

[0210] For example, there are two first crossbeams 122, which are connected to the two ends of the first side beam 121.

[0211] The first crossbeam 122 near the first frame 110 has a second rotating hole in the middle of the second direction. It can be understood that the first first crossbeam 122 is provided with the second rotating hole in the direction from the first frame 110 to the second frame 120, that is, the first crossbeam 122 closest to the first frame 110 is provided with the second rotating hole, or any first crossbeam 122 before the last first crossbeam 122 is provided with the second rotating hole.

[0212] By adopting the technical solution of this embodiment, a second rotating hole is provided on the first crossbeam 122 near the first frame 110, which helps to shorten the length of the rotating shaft 130 and facilitates the rotating connection between the first frame 110 and the second frame 120. In addition, placing the second rotating hole in the middle of the first crossbeam 122 can make the rotating shaft 130 more stable during rotation, distribute the force more evenly, reduce the additional stress and wear caused by rotational eccentricity, and more effectively absorb and disperse torsional forces. Furthermore, the second frame 120 adopts a frame structure with two first side beams 121 and multiple first crossbeams 122, which helps to improve the structural reliability of the second frame 120.

[0213] In some embodiments, the frame 100 further includes a rotation limiting mechanism 150, which connects the first frame 110 and the second frame 120, and is used to limit the rotation range between the first frame 110 and the second frame 120.

[0214] The rotation limit mechanism 150 can refer to limiting the relative rotation angle between the first frame 110 and the second frame 120 within a preset range, such as 0 to 30°, 0 to 15°, 0 to 10°, 0 to 5°, etc.

[0215] During the operation of vehicle 1000, the frame 100 may be subjected to various complex external forces, causing rotation between the first frame 110 and the second frame 120. If the rotation amplitude is too large, it may affect the stability and safety of the frame 100 and the normal operation of other components of vehicle 1000. For example, excessive rotation amplitude may cause vehicle 1000 to roll over or cause other problems.

[0216] There are several ways to implement the rotation limit mechanism 150:

[0217] For example, the rotation limiting mechanism 150 adopts a mechanical limiting structure, with limiting blocks or limiting grooves respectively provided on the first frame 110 and the second frame 120. When the first frame 110 rotates to a certain angle relative to the second frame 120, the limiting block and the limiting groove cooperate with each other to prevent further rotation.

[0218] For example, the rotation limit mechanism 150 adopts an elastic limit device, which uses the elastic force of elastic elements such as springs to limit the rotation amplitude. When the rotation angle reaches the set value, the elastic element generates sufficient elastic force to resist the force of continued rotation.

[0219] For example, the rotation limit mechanism 150 uses electronic sensors and a control system to achieve the limiting function. The electronic sensors monitor the rotation angle of the first frame 110 and the second frame 120 in real time. When the angle approaches the set limit value, the control system issues a command to limit the rotation through a braking device or other means. Of course, in other examples, the rotation limit mechanism 150 can also adopt other structures.

[0220] By adopting the technical solution of this embodiment, the design of the rotation limit mechanism 150 ensures that the rotation range between the first frame 110 and the second frame 120 is within a reasonable range, thereby improving the overall performance and safety of the frame 100 and the vehicle 1000.

[0221] In some embodiments, at least one side of the second frame 120 along a second direction is connected to the first frame 110 by a rotation limiting mechanism 150, the second direction being the width direction of the frame 100.

[0222] A rotation limiting mechanism 150 is connected between the second frame 120 and the first frame 110 on one side along the second direction; or, a rotation limiting mechanism 150 is connected between the second frame 120 and the first frame 110 on both sides along the second direction.

[0223] For example, a rotation limit mechanism 150 is connected between each of the two first side beams 121 and the first frame 110.

[0224] By adopting the technical solution of this embodiment, the frame 100 is twisted, causing the first frame 110 and the second frame 120 to rotate. The rotation limiting mechanism 150 is connected between the second frame 120 and at least one side of the first frame 110 along the width direction (i.e., the second direction) of the frame 100. This allows the rotation limiting mechanism 150 to directly restrict and constrain the relative rotation between the first frame 110 and the second frame 120, reducing instability or damage to the vehicle 1000 structure caused by excessive rotation. For example, when the vehicle 1000 makes a sharp turn or encounters uneven road surfaces, the frame 100 may twist in the width direction. In this case, the rotation limiting mechanism 150 can limit the rotation and protect the frame 100 and other components of the vehicle 1000.

[0225] In some embodiments, the rotation limiting mechanism 150 includes a pull rod 151, a first connecting seat 152, and a second connecting seat 153. The first connecting seat 152 is connected to the first frame 110, and the second connecting seat 153 is connected to the side of the second frame 120 along the second direction. The two ends of the pull rod 151 are respectively hinged to the first connecting seat 152 and the second connecting seat 153. The hinge axis of the pull rod 151 and the first connecting seat 152 is parallel to the second direction, and the hinge axis of the pull rod 151 and the second connecting seat 153 is parallel to the first direction.

[0226] The first connecting seat 152 can refer to a hinged seat that is installed on the first frame 110 and hinged to the tie rod 151. The first connecting seat 152 can be fixed to the first frame 110 by means of snap-fit, adhesive, bolt, screw, etc. The first connecting seat 152 can also be an integral structure with the first frame 110.

[0227] The second connecting seat 153 can refer to a hinged seat installed on the second frame 120 and hinged to the tie rod 151. The second connecting seat 153 can be fixed to the second frame 120 by means of snap-fit, adhesive, bolts, screws, etc. The second connecting seat 153 can also be an integral structure with the second frame 120. The second connecting seat 153 can be installed on the first side beam 121. The first side beam 121 has good structural strength and can stably support the second connecting seat 153, and the rotation limit mechanism 150 has good reliability. The second connecting seat 153 is installed on the side of the first side beam 121 facing away from the first crossbeam 122. The side of the first side beam 121 facing away from the first crossbeam 122 has a large space and fewer parts, which can reduce the risk of interference between the rotation limit mechanism 150 and other components.

[0228] The pull rod 151 can refer to the rod connected between the first connecting seat 152 and the second connecting seat 153. The shape of the pull rod 151 can be various, such as: arc, L-shaped, straight, etc.

[0229] The two ends of the pull rod 151 are hinged to the first connecting seat 152 and the second connecting seat 153, respectively. This hinged connection allows the pull rod 151 to rotate freely within a certain range while connecting the first connecting seat 152 and the second connecting seat 153, thereby accommodating the relative rotation between the first frame 110 and the second frame 120. Moreover, the hinge axis between the pull rod 151 and the first connecting seat 152 is parallel to the second direction (the width direction of the frame 100), and the hinge axis between the pull rod 151 and the second connecting seat 153 is parallel to the first direction (the length direction of the frame 100), giving the pull rod 151 different degrees of rotational freedom in different directions, allowing it to more flexibly adapt to the relative rotation between the first frame 110 and the second frame 120.

[0230] When the first frame 110 rotates relative to the second frame 120, the pull rod 151 will swing accordingly. Since the hinge axis of the pull rod 151 and the first connecting seat 152 is parallel to the second direction (the width direction of the frame 100), and the hinge axis of the pull rod 151 and the second connecting seat 153 is parallel to the first direction (the length direction of the frame 100), the swing of the pull rod 151 is constrained to a certain extent. When the rotation amplitude between the first frame 110 and the second frame 120 reaches a certain level, the pull rod 151 will be subjected to tensile or compressive forces. The length of the pull rod 151 itself and the limitation of the hinge will prevent the first frame 110 and the second frame 120 from further increasing the rotation amplitude, thereby limiting the rotation amplitude. For example, when the first frame 110 rotates too much relative to the second frame 120, the pull rod 151 may be stretched to its limit and cannot extend further. At this time, it will generate a reverse pulling force on the first frame 110, preventing it from rotating further, thereby limiting the rotation range between the first frame 110 and the second frame 120.

[0231] By adopting the technical solution of this embodiment, the rotation limiting mechanism 150 adopts the structure of a pull rod 151, a first connecting seat 152, and a second connecting seat 153. The rotation limiting mechanism 150 can more flexibly adapt to the relative rotation between the first frame 110 and the second frame 120, reducing the risk of problems such as tearing or seal failure of the battery device 200. When the first frame 110 and the second frame 120 exceed the preset rotation range, the pull rod 151 can limit the continued rotation between the first frame 110 and the second frame 120, reducing the instability or damage to the vehicle 1000 structure caused by excessive rotation. The rotation limiting mechanism 150 adopts the structure of a pull rod 151, a first connecting seat 152, and a second connecting seat 153, which has a simple structure and good structural reliability, making it suitable for use in vehicles 1000 with large load capacity.

[0232] In some embodiments, the pull rod 151 includes a first hinge portion 1511, a straight segment 1512, an arc segment 1513, and a second hinge portion 1514 connected in sequence. The first hinge portion 1511 is hinged to a first connecting seat 152, the second hinge portion 1514 is hinged to a second connecting seat 153, and the straight segment 1512 extends along a first direction.

[0233] The first hinge part 1511 is used to hinge with the first connecting seat 152. Through the hinge connection, the pull rod 151 can be movably connected with the first frame 110. When the first frame 110 rotates relative to the second frame 120, the pull rod 151 rotates relative to the first connecting seat 152 within a certain range, thereby adapting to the rotation of the first frame 110 and the second frame 120 within a preset range.

[0234] The straight segment 1512 extends along the first direction. The straight segment 1512 provides a stable connection and force transmission part in the tie rod 151. It connects the first hinge 1511 and the arc segment 1513, and during the relative rotation between the first frame 110 and the second frame 120, it can transmit force and torque along the first direction while maintaining a certain structural stability so that the tie rod 151 will not be excessively deformed or twisted due to force.

[0235] The curved segment 1513 connects the straight segment 1512 and the second hinge 1514. The design of the curved segment 1513 increases the flexibility and adaptability of the pull rod 151. When relative rotation occurs between the first frame 110 and the second frame 120, the curved segment 1513, through its own bending shape, allows the pull rod 151 to better adapt to changes in the angle between the first frame 110 and the second frame 120, reducing the risk of jamming or damage to the pull rod 151 due to angle changes. Simultaneously, the curved segment 1513 can also buffer and absorb the impact force generated by the relative movement of the first frame 110 and the second frame 120 to a certain extent, thus protecting the entire rotation limiting mechanism 150.

[0236] The second hinge portion 1514 is hinged to the second connecting seat 153, thereby connecting the pull rod 151 to the second frame 120. The second hinge portion 1514 provides a rotatable connection point between the pull rod 151 and the second frame 120, allowing the pull rod 151 to rotate within a certain range relative to the first connecting seat 152, thereby accommodating the rotation of the first frame 110 and the second frame 120 within a preset range.

[0237] For example, the pull rod 151 is generally L-shaped, with the bent portion forming an arc segment 1513. The arc segment 1513 can be a quarter circle or similar. The portion on one side of the bent segment forms a first hinge portion 1511 and a straight segment 1512, while the portion on the other side forms a second hinge portion 1514. The first hinge portion 1511 can refer to the portion used for hinged with the first connecting seat 152. The straight segment 1512 is straight and connects the arc segment 1513 and the first hinge portion 1511. Alternatively, the straight segment 1512 can also be provided between the arc segment 1513 and the second hinge portion 1514.

[0238] By adopting the technical solution of this embodiment, when relative rotation occurs between the first frame 110 and the second frame 120, the various parts of the pull rod 151 work together. The first hinge portion 1511 and the second hinge portion 1514 achieve an active connection between the pull rod 151 and the first connecting seat 152 and the second connecting seat 153 through hinges with the first connecting seat 152 and the second connecting seat 153. The straight segment 1512 facilitates the effective transmission of force, while the arc segment 1513 plays a role in buffering, adapting to angle changes, and protecting the mechanism during the rotation of the first frame 110 and the second frame 120. With this structure, the pull rod 151 can accurately limit the rotation amplitude between the first frame 110 and the second frame 120, reducing damage to components such as the battery device 200 and the frame 100, and improving the overall performance and safety of the vehicle 1000. In addition, the design of the arc segment 1513 can reduce stress concentration and improve the reliability of the pull rod 151.

[0239] In some embodiments, the rotation limiting mechanism 150 includes a first hinge shaft 1521, which is connected to a first connecting seat 152. A first hinge portion 1511 is provided with a first hinge hole 15111, and the first hinge shaft 1521 passes through the first hinge hole 15111. And / or, the rotation limiting mechanism 150 includes a second hinge shaft 1531, which is connected to a second connecting seat 153. A second hinge portion 1514 is provided with a second hinge hole 15141, and the second hinge shaft 1531 passes through the second hinge hole 15141.

[0240] The first hinge hole 15111 can refer to the through hole of the first hinge part 1511. The first hinge shaft 1521 passes through the first hinge hole 15111. The axis of the first hinge shaft 1521 is parallel to the second direction. The first hinge shaft 1521 and the first connecting seat 152 can be connected by bolts, screws, snap-fit, or through-hole. The connection method of the first hinge part 1511 and the first connecting seat 152 using the first hinge shaft 1521 and the first hinge hole 15111 is simple in structure, easy to manufacture, and has good hinge reliability, which helps to improve the reliability of the rotation limit mechanism 150.

[0241] The second hinge hole 15141 can refer to the through hole of the second hinge part 1514. The second hinge shaft 1531 passes through the second hinge hole 15141. The axis of the second hinge shaft 1531 is parallel to the first direction. The second hinge shaft 1531 and the second connecting seat 153 can be connected by bolts, screws, snap-fit, or through-hole. The connection method of the second hinge part 1514 and the second connecting seat 153 using the second hinge shaft 1531 and the second hinge hole 15141 has a simple connection structure, is easy to manufacture, and has good hinge reliability, which is beneficial to improving the reliability of the rotation limit mechanism 150.

[0242] By adopting the technical solution of this embodiment, the first hinge part 1511 and the first connecting part 1101 are connected by the first hinge shaft 1521 and the first hinge hole 15111 passing through, which is simple, convenient to assemble, and has good connection reliability; and / or, the second hinge part 1514 and the second connecting part 1201 are connected by the second hinge shaft 1531 and the second hinge hole 15141 passing through, which is simple and convenient to assemble.

[0243] Figure 9 for Figure 8 Schematic diagram of the structure of the battery device 200 shown. Figure 1 . Figure 10 for Figure 8 Schematic diagram of the structure of the battery device 200 shown. Figure 2 . Figure 11 For along Figure 10 A cross-sectional diagram of DD. Figure 12 This is a schematic diagram of the structure of a battery cell 221 provided in some embodiments of this application. Figure 13 for Figure 9 The diagram shows the structure of the battery device 200 with the top cover hidden. Figure 14 for Figure 4 The schematic diagram of the frame 100 and battery device 200 shown. Figure 2 .

[0244] In some embodiments, the battery device 200 includes a housing 210 and at least one battery cell assembly 220. The housing 210 has an assembly space 2001, the battery cell assembly 220 is located in the assembly space 2001, and the battery cell assembly 220 includes a plurality of battery cells 221. A first frame 110 is connected to the housing 210.

[0245] The battery device 200 mentioned in the embodiments of this application may include one or more battery cell assemblies 220 for providing voltage and capacity. The battery cell assembly 220 may include a plurality of battery cells 221, which are connected in series, parallel or mixed connection via a busbar.

[0246] In some embodiments, the battery cell assembly 220 is typically formed by arranging a plurality of battery cells 221.

[0247] As an example, the battery cell assembly 220 can be a battery module, which is formed by arranging and fixing multiple battery cells 221 together to form an independent module. As an example, the battery module can be formed by bundling multiple battery cells 221 together with cable ties.

[0248] In some embodiments, the battery device 200 may be a battery pack, which includes a housing 210 and one or more battery cell assemblies 220, the battery cell assemblies 220 being housed in the housing 210.

[0249] The housing 210 refers to the outer shell structure of the battery device 200, which protects the battery cell assembly 220. The housing 210 can be made of materials such as metal or plastic. The cavity inside the housing 210 forms an assembly space 2001, which provides installation space for the battery cell assembly 220. The first frame 110 can be fixedly connected to the housing 210 or floatingly connected, and the housing 210 can also be part of the first frame 110.

[0250] As an example, the battery cell assembly 220 can be a battery module, and the battery cell assembly 220 can be housed in the housing 210 by fixing the battery module in the housing 210.

[0251] As an example, the battery cell assembly 220 can also be housed in the housing 210 by directly fixing multiple battery cells 221 to the housing 210.

[0252] As an example, the housing 210 may include a first housing 210 and a second housing 210. The first housing 210 and the second housing 210 are fastened together, forming an assembly space 2001 inside the housing 210 to accommodate the battery cell assembly 220. Here, "closed" refers to covering or closing, and can be sealed or unsealed. The first housing 210 may be a top cover 211 or a bottom plate 212.

[0253] As an example, the housing 210 may include a top cover 211, a frame 213, and a bottom plate 212. The top cover 211 and the bottom plate 212 are respectively connected to the frame 213, so that an assembly space 2001 is formed inside the housing 210 to accommodate the battery cell assembly 220.

[0254] In some embodiments, the housing 210 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 210 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 210 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0255] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use battery cells 221, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles 1000, ships and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft.

[0256] In this embodiment of the application, the battery cell 221 can be a secondary battery. A secondary battery refers to a battery cell 221 that can be used again after being discharged by recharging to activate the active materials.

[0257] The battery cell 221 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0258] By adopting the technical solution of this embodiment, the battery device 200 is installed on the first frame 110, and one or more battery cell assemblies 220 are provided inside the battery device 200. The battery cell assembly 220 includes multiple battery cells 221, and the number of battery cells 221 and battery cell assembly 220 can be flexibly set to meet different usage requirements.

[0259] In some embodiments, the housing 210 includes a top cover 211, a bottom plate 212, and a frame 213. The top cover 211 and the bottom plate 212 are respectively covered on opposite sides of the frame 213 and enclose an assembly space 2001.

[0260] Frame 213 is the main supporting structure of housing 210, serving to define the space within housing 210 and provide mechanical support. Frame 213 can withstand the battery cell assembly 220 and any external forces it may experience, effectively improving the strength and stability of housing 210 and protecting the battery cell assembly 220 inside. Frame 213 is typically composed of multiple side beams joined together. The shape of frame 213 can be various, such as quadrilateral, elliptical, or circular.

[0261] For example, the frame 213 includes a front beam 2131, a right beam 2134, a rear beam 2132, and a left beam 2133. The front beam 2131, right beam 2134, rear beam 2132, and left beam 2133 are spliced ​​end to end to form a rectangular structure. The structure of the frame 213 is regular, which facilitates the installation of the battery cell assembly 220. In addition, the frame 213 has good structural reliability, which is beneficial to improving the structural strength of the battery device 200.

[0262] The top cover 211 and the bottom plate 212 are respectively installed on opposite sides of the frame 213. After being connected to the frame 213, the top cover 211 and the bottom plate 212 together enclose the assembly space 2001. The top cover 211 and the bottom plate 212 can seal the frame 213, preventing dust, moisture, and other external substances from entering the assembly space 2001 and damaging the battery cell assembly 220. At the same time, the top cover 211 and the bottom plate 212 can also enhance the overall structural strength of the housing 210 to a certain extent, working together with the frame 213 to improve the pressure resistance and protective performance of the housing 210. The top cover 211 and the bottom plate 212 can be a flat structure or a basin-shaped structure with an opening on one side.

[0263] By adopting the technical solution of this embodiment, the housing 210, with its combined structure of top cover 211, bottom plate 212, and frame 213, provides a stable and reliable installation environment for the battery cell assembly 220. This structure effectively protects the battery cell assembly 220 from external interference and damage, improves the reliability of the battery device 200, extends the battery's lifespan, and enhances the overall reliability and safety of the battery device 200.

[0264] In some embodiments, the housing 210 further includes a heat exchange plate 230 for heat exchange with the battery cell 221. The heat exchange plate 230 is disposed within the frame 213 and divides the assembly space 2001 into a first cavity 2002 and a second cavity 2003. The first cavity 2002 is located between the top cover 211 and the heat exchange plate 230, and the second cavity 2003 is located between the bottom plate 212 and the heat exchange plate 230. At least one battery cell assembly 220 is disposed in the first cavity 2002 and at least one battery cell assembly 220 is disposed in the second cavity 2003. A first pressure relief mechanism 2211 is provided on the side of the battery cell 221 in the first cavity 2002 facing away from the heat exchange plate 230, and a second pressure relief mechanism 2212 is provided on the side of the battery cell 221 in the second cavity 2003 facing away from the heat exchange plate 230.

[0265] The heat exchange plate 230 can refer to the component that exchanges heat with the battery cell 221. The heat exchange plate 230 can heat or cool the battery cell 221. Through the heat exchange effect of the heat exchange plate 230, the battery cell 221 can be kept in a suitable temperature range, which helps to improve the reliability and performance of the battery cell 221, thereby improving the reliability of the battery device 200.

[0266] In some examples, the heat exchange plate 230 may be provided with a heat exchange channel, in which the heat exchange medium flows and exchanges heat with the battery cell 221, thereby controlling the temperature of the battery cell 221 within a reasonable range.

[0267] In some examples, a heating element is provided inside the heat exchange plate 230 to heat the battery cell 221.

[0268] The heat exchange plate 230 is horizontally arranged in the assembly space 2001, dividing the assembly space 2001 into two parts, one of which is a first cavity 2002 and the other is a second cavity 2003. One or more battery cell assemblies 220 are arranged in both the first cavity 2002 and the second cavity 2003.

[0269] A first pressure relief mechanism 2211 is provided on the side of the battery cell 221 facing away from the heat exchange plate 230 in the first cavity 2002. The first pressure relief mechanism 2211 and the heat exchange plate 230 are located on opposite sides of the battery cell 221. The side of the battery cell 221 facing away from the first pressure relief mechanism 2211 can directly contact the heat exchange plate 230, or it can be installed on the heat exchange plate 230 through a heat-conducting layer.

[0270] A second pressure relief mechanism 2212 is provided on the side of the battery cell 221 facing away from the heat exchange plate 230 in the second cavity 2003. The second pressure relief mechanism 2212 and the heat exchange plate 230 are located on opposite sides of the battery cell 221. The side of the battery cell 221 facing away from the second pressure relief mechanism 2212 can directly contact the heat exchange plate 230, or it can be installed on the heat exchange plate 230 through a heat-conducting layer.

[0271] The first pressure relief mechanism 2211 refers to an element or component that is actuated to release internal pressure when the internal pressure or temperature of the first battery cell 221 reaches a predetermined threshold. This threshold design varies depending on design requirements. It may depend on one or more materials among the positive electrode, negative electrode, electrolyte, and separator in the first battery cell 221. The internal pressure of the first battery cell 221 is the pressure inside its casing. The first pressure relief mechanism 2211 can take the form of an explosion-proof valve, a gas valve, a pressure relief valve, or a safety valve, and can specifically employ a pressure-sensitive element or structure. That is, when the internal pressure of the first battery cell 221 reaches the predetermined threshold, the first pressure relief mechanism 2211 actuates, or a weak point in the first pressure relief mechanism 2211 ruptures, thereby forming an opening or channel for internal pressure release.

[0272] The second pressure relief mechanism 2212 refers to an element or component that is actuated to release internal pressure when the internal pressure or temperature of the second battery cell 221 reaches a predetermined threshold. This threshold design varies depending on design requirements. It may depend on one or more materials among the positive electrode, negative electrode, electrolyte, and separator in the second battery cell 221. The internal pressure of the second battery cell 221 is the pressure inside its casing. The second pressure relief mechanism 2212 can take the form of an explosion-proof valve, a gas valve, a pressure relief valve, or a safety valve, and can specifically employ a pressure-sensitive element or structure. That is, when the internal pressure of the second battery cell 221 reaches the predetermined threshold, the second pressure relief mechanism 2212 actuates or a weak point in the second pressure relief mechanism 2212 ruptures, thereby forming an opening or channel for internal pressure release.

[0273] In some high-capacity applications, the battery device 200 may contain two layers of battery cells 221, which are simply stacked together. The pressure relief mechanisms for both layers of battery cells 221 are located on the upper side of the battery cells 221, and a heat exchange plate 230 needs to be installed at the bottom of each layer of battery cells 221. This results in poor integration of the battery device 200 and an inability to further improve the energy density of the arrangement. However, in the battery device 200 of this application embodiment, a first pressure relief mechanism 22 is provided on the side of the battery cells 221 in the first cavity 2002 that faces away from the heat exchange plate 230. 11. A second pressure relief mechanism 2212 is provided on the side of the battery cell 221 located in the second cavity 2003 facing away from the heat exchange plate 230, so that the battery cell 221 located in the first cavity 2002 and the battery cell 221 located in the second cavity 2003 can share a heat exchange plate 230. This can reduce the height of the battery device 200, increase the ground clearance of the battery device 200, and reduce the risk of the bottom of the battery device 200 being bumped. In addition, the support plate in the middle of the housing 210 can be directly used as the heat exchange plate 230, which helps to reduce the manufacturing cost of the battery device 200. In particular, when the upper surface of the housing 210 is flush with the upper surface of the bracket 111, sharing a heat exchange plate 230 helps to increase the ground clearance of the bottom of the housing 210 and reduce the risk of the housing 210 being bumped.

[0274] In some embodiments, the frame 213 and the heat exchange plate 230 are an integrated structure.

[0275] The frame 213 and the heat exchange plate 230 are manufactured using integrated processes such as casting and molding.

[0276] In some examples, a heat exchange channel 231 is provided inside the heat exchange plate 230, and a heat exchange channel 231 can also be provided on the side beam of the frame 213 to improve the heat exchange effect of the battery cell 221 and improve the reliability of the battery cell 221.

[0277] In some examples, the front beam 2131, rear beam 2132, left beam 2133, and right beam 2134 of the frame 213 are connected end to end to form a ring structure, which is located around the periphery of the heat exchange plate 230. At least one of the front beam 2131, rear beam 2132, left beam 2133, and right beam 2134 is an integral structure with the heat exchange plate 230.

[0278] For example, the heat exchange plate 230, the left beam 2133 and the right beam 2134 are an integrated structure.

[0279] For example, the heat exchange plate 230, the front beam 2131 and the rear beam 2132 are an integrated structure.

[0280] By adopting the technical solution of this embodiment, the frame 213 and the heat exchange plate 230 are integrated into a single structure. This integrated structure eliminates the connection interface between the frame 213 and the heat exchange plate 230, reducing the risk of structural instability due to loose connections or damage to connecting components. For example, during the operation of the vehicle 1000, the battery device 200 is subjected to various vibrations and impacts. If the frame 213 and the heat exchange plate 230 are separate structures, the connection may gradually loosen, affecting the overall performance of the battery device 200. The integrated structure can better withstand these external forces, improving the structural integrity of the battery device 200 under complex operating conditions. The frame 213 and the heat exchange plate 230 can be manufactured in one piece, reducing the number of parts and assembly steps.

[0281] In some embodiments, at least one of the first cavity 2002 and the second cavity 2003 is provided with a reinforcing beam 240, and at least one of the frame 213 and the heat exchange plate 230 is fixedly connected to the reinforcing beam 240.

[0282] The reinforcing beam 240 can refer to a beam structure used to strengthen the connection strength of the box 210.

[0283] A reinforcing beam 240 is provided in the first cavity 2002; or, a reinforcing cavity is provided in the second cavity 2003; or, both the first cavity 2002 and the second cavity 2003 are provided with reinforcing beams 240.

[0284] The frame 213 is connected to the reinforcing beam 240, and the frame 213 and the reinforcing beam 240 can be connected by bolts, screws, snap-fit, adhesive or other means.

[0285] The heat exchange plate 230 is connected to the reinforcing beam 240. The heat exchange plate 230 and the reinforcing beam 240 can be connected by bolts, screws, snap-fit, adhesive or other means.

[0286] By adopting the technical solution of this embodiment and strengthening the design of beam 240, the structural strength of battery device 200 can be improved.

[0287] In some embodiments, the reinforcing beam 240 is fixedly connected to the heat exchange plate 230 and is an integrated structure.

[0288] Reinforcing beams 240 are disposed on the surface of heat exchange plate 230 and form an integrated structure with heat exchange plate 230. The reinforcement can be a raised structure on the surface of heat exchange plate 230. There are multiple reinforcing beams 240, which are distributed horizontally and vertically to form a grid structure. Battery cell assembly 220 is disposed in the hollow space of the grid structure. The grid structure is connected to the side beams of frame 213 to more effectively increase the structural strength of battery device 200. The reinforcing beams 240 and heat exchange plate 230 are manufactured using integrated processes such as casting or molding.

[0289] By adopting the technical solution of this embodiment, the reinforcing beam 240 and the heat exchange plate 230 are integrated into a single structure. This integrated structure eliminates the connection interface between the reinforcing beam 240 and the heat exchange plate 230, reducing the risk of structural instability due to loose connections or damage to connecting components. For example, during the operation of the vehicle 1000, the battery device 200 is subjected to various vibrations and impacts. If the reinforcing beam 240 and the heat exchange plate 230 are separate structures, the connection may gradually loosen, affecting the overall performance of the battery device 200. The integrated structure can better withstand these external forces, improving the structural integrity of the battery device 200 under complex operating conditions. The reinforcing beam 240 and the heat exchange plate 230 can be manufactured in one piece, reducing the number of parts and assembly steps.

[0290] In some embodiments, the heat exchange plate 230, frame 213 and reinforcing beam 240 are an integrated structure to better improve the structural strength of the battery device 200.

[0291] In some embodiments, the top cover 211 has a first wall portion 2111, the bottom plate 212 has a second wall portion 2121, the first wall portion 2111 and the second wall portion 2121 are disposed opposite to each other, the battery cell assembly 220 is located between the first wall portion 2111 and the second wall portion 2121, at least one of the first wall portions 2111 and the second wall portion 2121 is recessed toward the battery cell assembly 220 to form a wiring groove 2112 for wiring on the outside of the housing 210 and to form a receiving space 2113 for accommodating the power distribution device 250 between the corresponding wall portion and the battery cell assembly 220.

[0292] The first wall portion 2111 can refer to the top wall of the top cover 211.

[0293] In some examples, the top cover 211 is a flat plate structure, and the top cover 211 is the first wall portion 2111.

[0294] In some examples, the top cover 211 has a bottom opening and a basin-shaped structure protruding from the middle of the battery cell 221, and the first wall portion 2111 is the top wall of the top cover 211.

[0295] The second wall portion 2121 can refer to the bottom wall of the base plate 212.

[0296] In some examples, the base plate 212 is a flat plate structure, and the base plate 212 is the second wall portion 2121.

[0297] In some examples, the base plate 212 has an opening on the top and a basin-shaped structure protruding from the middle of the battery cell 221, and the second wall 2121 is the bottom wall of the base plate 212.

[0298] The power distribution device 250 can refer to a component used to manage and distribute the electrical energy of the battery device 200. The power distribution device 250 may include a high-voltage box, etc.

[0299] In some examples, the middle of the first wall portion 2111 is recessed towards the battery cell 221, forming a wiring groove 2112 on the outside of the housing 210. The wiring groove 2112 allows components such as wire harnesses, pipes, and air pipes to pass through, facilitating the routing of these components. The middle of the first wall portion 2111 is recessed towards the battery cell 221, while the two sides of the first wall portion 2111 protrude relative to the recessed position. The gap between the two sides of the first wall portion 2111 and the battery cell 221 forms a receiving space 2113, which allows the power distribution device 250 to be installed. The wiring groove 2112 can pass through the battery device 200 along the length of the frame 100, facilitating the routing of components such as wire harnesses, pipes, and air pipes. Furthermore, components such as the power distribution unit 250, wiring harness, pipes, and air pipes are located on the upper part of the battery unit 200. After the battery unit 200 is installed in the vehicle 1000, the upper part of the battery unit 200 is covered by these components, which can reduce the risk of damage to the power distribution unit 250, wiring harness, pipes, and air pipes. Of course, in other examples, one side of the first wall portion 2111 is recessed towards the battery cell 221.

[0300] In some examples, the middle portion of the second wall portion 2121 is recessed towards the battery cell 221, forming a wiring groove 2112 on the outer side of the housing 210. The wiring groove 2112 allows components such as wire harnesses, pipes, and air pipes to pass through, facilitating the routing of these components. The middle portion of the second wall portion 2121 is recessed towards the battery cell 221, while the two sides of the second wall portion 2121 protrude relative to the recessed position. The gap between the two sides of the second wall portion 2121 and the battery cell 221 forms a receiving space 2113, which allows the power distribution device 250 to be installed. The wiring groove 2112 can pass through the battery device 200 along the length of the frame 100, facilitating the routing of components such as wire harnesses, pipes, and air pipes. Of course, in other examples, one side of the second wall portion 2121 is recessed towards the battery cell 221.

[0301] In some examples, the first wall portion 2111 and the second wall portion 2121 are both recessed toward the battery cell assembly 220 to form a wiring groove 2112 for wiring on the outside of the housing 210 and to form a receiving space 2113 for accommodating the power distribution device 250 between the corresponding wall portion and the battery cell assembly 220.

[0302] By adopting the technical solution of this embodiment, the wiring trough 2112 can accommodate components such as wire harnesses, pipes, and air pipes, so as to facilitate the wiring distribution of components such as wire harnesses, pipes, and air pipes; the power distribution device 250 is located in the accommodating space 2113, which can make full use of the space inside the battery device 200, improve the space utilization rate inside the battery device 200, and improve the volumetric energy density of the battery device 200.

[0303] In some embodiments, the first frame 110 includes a support 111 and a frame 213, the frame 213 being connected between the support 111 and the second frame 120, and the side of the frame 213 facing away from the support 111 being rotatably connected to the second frame 120.

[0304] The frame 213 is part of the first frame 110. The bracket 111 and the frame 213 together form the first frame 110. The bracket 111 is used to support the cab 500.

[0305] For example, the front beam 2131 of the frame 213 is connected to the bracket 111, and the rear beam 2132 of the frame 213 is rotatably connected to the second frame 120.

[0306] By adopting the technical solution of this embodiment, the frame 213 of the battery device 200 can be directly used as part of the first frame 110, which can improve the integration of the frame 100 and the battery device 200 and improve the structural compactness of the vehicle 1000.

[0307] In some embodiments, the bracket 111 has a first plate 1111, which is connected to one end of the bracket 111. The surface of the first plate 1111 is attached to the frame 213 and connected to the frame 213.

[0308] The bracket 111 has a first plate 1111 at the end near the frame 213. The plate can be attached to and connected to the frame 213. The first plate 1111 and the frame 213 can be fixedly connected by bolts, screws, snap-fit, adhesive or other means.

[0309] By adopting the technical solution of this embodiment, the bracket 111 and the frame 213 are connected by a first plate 1111, which fits against the frame 213. This improves the connection area between the bracket 111 and the frame 213, enhances the connection reliability between them, and improves the structural reliability of the frame 100. The connection between the frame 213 and the bracket 111 via the first plate 1111, and the rotatable connection between the second frame 120 and the frame 213, helps reduce the difficulty of installing the battery device 200 onto the frame 100.

[0310] In some embodiments, the bracket 111 includes two second side beams 1112 and a plurality of second cross beams 1113. The two second side beams 1112 are arranged at intervals along a second direction, and the plurality of second cross beams 1113 are arranged at intervals along a first direction. The second cross beams 1113 are connected between the two second side beams 1112. The second cross beams 1113 near the frame 213 are integral with the first plate 1111. The second direction is the width direction of the frame 100.

[0311] The support 111 adopts a structure of two second side beams 1112 and multiple second cross beams 1113 to form a beam frame structure.

[0312] Two second side beams 1112 are arranged at intervals along the second direction (i.e. the width direction of the frame 100, usually transverse) to serve as the longitudinal (along the length direction of the frame 100) support body of the bracket 111 and bear transverse loads (such as lateral impact forces).

[0313] For example, the second side beam 1112 is a long strip-shaped member extending along the length of the frame 100.

[0314] Multiple second crossbeams 1113 are arranged at intervals along the first direction (i.e., the longitudinal direction of the frame 100). The multiple second crossbeams 1113 connect two second side beams 1112 to form a lateral support and bear the longitudinal load.

[0315] For example, the second crossbeam 1113 extends along the second direction and connects the two second side beams 1112 to form a span support.

[0316] In some examples, the second side beam 1112 is orthogonally connected to the second cross beam 1113 to form a grid-like or frame structure, providing multidimensional stiffness (e.g., resistance to bending, torsion, etc.) for the support 111.

[0317] "The crossbeam closest to frame 213" can refer to the one or more crossbeams in bracket 111 that are closest to frame 213 (usually edge crossbeams, not middle crossbeams). The second crossbeam 1113 and the first plate 1111 are made into a whole through an integral molding process (such as casting, injection molding, stamping and welding integration), rather than independent parts connected by bolts, welding or other means.

[0318] By adopting the technical solution of this embodiment, the bracket 111 adopts a structure of two second side beams 1112 and multiple second cross beams 1113, which has good structural strength, which is conducive to improving the structural strength of the frame 100 and improving the reliability of the vehicle 1000. In addition, the second cross beam 1113 near the frame 213 is an integrated structure with the first plate 1111, which can eliminate the connecting parts between the second cross beam 1113 and the first plate 1111, simplify the assembly process, and reduce processing costs. The connection reliability of the first plate 1111 and the second cross beam 1113 is good, which can enhance the overall structural strength of the frame 100.

[0319] In some embodiments, the bracket 111 has a second plate 1114 on at least one side along the second direction, and the second plate 1114 is bent to form a first plate segment 11141 and a second plate segment 11142; the plate surface of the first plate segment 11141 is attached to the side of the bracket 111 along the second direction and connected to the bracket 111, and the plate surface of the second plate segment 11142 is attached to the frame 213 and connected to the frame 213, wherein the second direction is the width direction of the frame 100.

[0320] The second plate 1114 is formed into two functional plate segments by bending process. One functional plate segment is the first plate segment 11141; the other functional plate segment is the second plate segment 11142. The first plate segment 11141 and the second plate segment 11142 are at a certain angle (usually a right angle or close to a right angle, forming an L-shaped, U-shaped or other structure).

[0321] The first plate segment 11141 is attached to the side of the bracket 111 in the second direction (such as the left or right side of the bracket 111) and is connected to the bracket 111 (such as by welding, bolting, riveting, etc.).

[0322] The second plate segment 11142 is attached to the frame 213 and connected to the frame 213 (e.g., by welding, bolting, riveting, etc.).

[0323] A second plate 1114 is provided on one side of the bracket 111, or a second plate 1114 is provided on both sides of the bracket 111.

[0324] For example, the second side beam 1112 is fitted and connected to the first plate segment 11141 of the second plate 1114, and the plate surface of the second plate segment 11142 of the second plate 1114 is connected to the front side beam 2131.

[0325] By adopting the technical solution of this embodiment, the second plate 1114 is bent to form the first plate segment 11141 and the second plate segment 11142. The bent second plate 1114 enables the load to be transferred bidirectionally on the two plate segments (for example, when the lateral load is transferred from the first plate segment 11141 to the second plate segment 11142, it is converted into the longitudinal or vertical load of the frame 213), thus optimizing the stress distribution. In addition, the bent structure formed by the second plate 1114 has high bending stiffness in the plane, especially in the second direction, that is, the lateral direction of the frame 100, which can resist lateral impact or vibration and improve the structural reliability of the frame 100.

[0326] In some embodiments, the second plate 1114 is provided with a reinforcing rib 1115, which connects the first plate segment 11141 and the second plate segment 11142.

[0327] The reinforcing rib 1115 is provided on the second plate 1114. The two sides of the adjacent reinforcing rib 1115 are connected to the first plate segment 11141 and the second plate segment 11142 respectively, that is, they span the bending area of ​​the two plate segments (such as the corner of the L-shape) to form a "bridge" type support structure.

[0328] The reinforcing rib 1115 can be a strip rib, a rib plate, a mesh rib, etc., and the cross section of the reinforcing rib 1115 can be triangular, rectangular, trapezoidal, etc.

[0329] By adopting the technical solution of this embodiment, the structural reliability of the second plate 1114 can be improved.

[0330] In some embodiments, at least one of the first frame 110 and the second frame 120 is fixedly connected to a battery device 200.

[0331] The first frame 110 is fixedly connected to the battery device 200; or, the second frame 120 is fixedly connected to the battery device 200; or, the first frame 110 and the second frame 120 are fixedly connected to the battery device 200.

[0332] By adopting the technical solution of this embodiment, the battery device 200 is fixedly installed on the vehicle frame 100, which can improve the fixing reliability of the battery device 200 and the use reliability of the vehicle 1000. In addition, the first frame 110 and the second frame 120 can be rotatably connected, which can also reduce the risk of problems such as tearing or sealing failure of the battery device 200, and can better balance the use of the vehicle 1000 and the use reliability of the battery device 200.

[0333] In some embodiments, vehicle 1000 is a truck, and optionally, the truck is a heavy-duty truck.

[0334] The vehicle 1000 is a truck. Trucks are used in complex conditions and are prone to problems such as tearing of the battery device 200 and failure of the seal. However, in this embodiment of the application, the first frame 110 and the second frame 120 of the vehicle 1000 are rotatably connected, which can effectively reduce the risk of tearing of the battery device 200 and failure of the seal.

[0335] In particular, the operating conditions of heavy-duty trucks are more complex. The rear suspension of the chassis will adjust its posture according to the undulating road surface. The force will be transmitted to the frame 100, and the frame 100 will be torsional. Through the rotational connection of the first frame 110 and the second frame 120, the torque and impact force transmitted to the battery device 200 can be reduced, thereby reducing the risk of failure of the battery device 200 due to excessive force and long-term torsional fatigue, and reducing the risk of sealing failure of the fixing interface of the housing 210 of the battery device 200.

[0336] In some embodiments, the vehicle 1000 includes a frame 100 and a battery device 200. The battery device 200 includes a housing 210 and at least one battery cell assembly 220. The housing 210 includes a top cover 211, a bottom plate 212, and a frame 213. The top cover 211 and the bottom plate 212 cover opposite sides of the frame 213 and enclose an assembly space 2001. The battery cell assembly 220 is located in the assembly space 2001 and includes a plurality of battery cells 221. A first frame 110 is connected to the housing 210.

[0337] In this embodiment, the housing 210 further includes a heat exchange plate 230 for heat exchange with the battery cells 221. The heat exchange plate 230 is disposed within the frame 213 and divides the assembly space 2001 into a first cavity 2002 and a second cavity 2003. The first cavity 2002 is located between the top cover 211 and the heat exchange plate 230, and the second cavity 2003 is located between the bottom plate 212 and the heat exchange plate 230. At least one battery cell assembly 220 is disposed in the first cavity 2002, and at least one battery cell assembly 220 is disposed in the second cavity 2003. A first pressure relief mechanism 2211 is provided on the side of the battery cell 221 in the first cavity 2002 facing away from the heat exchange plate 230, and a second pressure relief mechanism 2212 is provided on the side of the battery cell 221 in the second cavity 2003 facing away from the heat exchange plate 230. The frame 213 and the heat exchange plate 230 are an integrated structure.

[0338] In this embodiment, the frame 100 includes a first frame 110 and a second frame 120. The first frame 110 includes a support 111 and a frame 213. The frame 213 is connected between the support 111 and the second frame 120. The side of the frame 213 facing away from the support 111 is rotatably connected to the second frame 120.

[0339] In this embodiment, the frame 100 also includes a pivot 130, and the first frame 110 and the second frame 120 are connected by the pivot 130.

[0340] In this embodiment, a rotation limiting mechanism 150 is connected between the second frame 120 and the first frame 110 on at least one side along the second direction, where the second direction is the width direction of the frame 100. The rotation limiting mechanism 150 connects the first frame 110 and the second frame 120 and is used to limit the rotation range between the first frame 110 and the second frame 120.

[0341] In this embodiment, the rotation limiting mechanism 150 includes a pull rod 151, a first connecting seat 152, and a second connecting seat 153. The first connecting seat 152 is connected to the first frame 110, and the second connecting seat 153 is connected to the side of the second frame 120 along the second direction. The two ends of the pull rod 151 are respectively hinged to the first connecting seat 152 and the second connecting seat 153. The hinge axis of the pull rod 151 and the first connecting seat 152 is parallel to the second direction, and the hinge axis of the pull rod 151 and the second connecting seat 153 is parallel to the first direction.

[0342] See Figures 4-7 As shown, in some embodiments, the frame 100 includes a first frame 110 and a second frame 120, at least one of the first frame 110 and the second frame 120 is used to connect the battery device 200; one side of the first frame 110 is rotatably connected to the second frame 120 along a first direction; the rotation axis of the first frame 110 and the second frame 120 rotating relative to each other is parallel to the first direction, which is the length direction of the frame 100.

[0343] The vehicle frame 100 of this embodiment includes a first frame 110 and a second frame 120. One side of the first frame 110 is rotatably connected to the second frame 120 along a first direction, and the rotation axes of the first frame 110 and the second frame 120 are parallel to the first direction, which is the length direction of the vehicle frame 100. This allows the second frame 120 to rotate relative to the first frame 110. Thus, when the vehicle 1000 travels on undulating roads, if the second frame 120 twists, its rotation relative to the first frame 110 can absorb or disperse the torsional force, reducing the torsional force transmitted from the second frame 120 to the first frame 110. This reduces problems such as tearing and sealing failure of the battery device 200 on the first frame 110 due to torsional force. Similarly, if the first frame 110 is torn, the first frame 110 can rotate relative to the second frame 120 to absorb or disperse the torsional force, thereby reducing the torsional force transmitted from the first frame 110 to the second frame 120 and reducing problems such as tearing and sealing failure of the battery device 200 on the second frame 120 due to torsional force. Therefore, the vehicle 1000 of this application embodiment can reduce problems such as tearing and sealing failure of the battery device 200 of the vehicle 1000, which is beneficial to improving the reliability of the battery device 200 and the reliability of the vehicle 1000.

[0344] In some embodiments, the frame 100 further includes a pivot 130, through which the first frame 110 and the second frame 120 are connected.

[0345] By adopting the technical method of this embodiment, the first frame 110 and the second frame 120 are rotatably connected by the rotating shaft 130, which has a simple structure and is easy to process and manufacture.

[0346] In some embodiments, the frame 100 further includes a rotation limiting mechanism 150, which connects the first frame 110 and the second frame 120, and is used to limit the rotation range between the first frame 110 and the second frame 120.

[0347] By adopting the technical solution of this embodiment, the design of the rotation limit mechanism 150 ensures that the rotation range between the first frame 110 and the second frame 120 is within a reasonable range, thereby improving the overall performance and safety of the frame 100 and the vehicle 1000.

[0348] In some embodiments, at least one side of the second frame 120 along a second direction is connected to the first frame 110 by a rotation limiting mechanism 150, the second direction being the width direction of the frame 100.

[0349] By adopting the technical solution of this embodiment, the frame 100 is twisted, causing the first frame 110 and the second frame 120 to rotate. The rotation limiting mechanism 150 is connected between the second frame 120 and at least one side of the first frame 110 along the width direction (i.e., the second direction) of the frame 100. This allows the rotation limiting mechanism 150 to directly restrict and constrain the relative rotation between the first frame 110 and the second frame 120, reducing instability or damage to the vehicle 1000 structure caused by excessive rotation. For example, when the vehicle 1000 makes a sharp turn or encounters uneven road surfaces, the frame 100 may twist in the width direction. In this case, the rotation limiting mechanism 150 can limit the rotation and protect the frame 100 and other components of the vehicle 1000.

[0350] In some embodiments, the rotation limiting mechanism 150 includes a pull rod 151, a first connecting seat 152, and a second connecting seat 153. The first connecting seat 152 is connected to the first frame 110, and the second connecting seat 153 is connected to the side of the second frame 120 along the second direction. The two ends of the pull rod 151 are respectively hinged to the first connecting seat 152 and the second connecting seat 153. The hinge axis of the pull rod 151 and the first connecting seat 152 is parallel to the second direction, and the hinge axis of the pull rod 151 and the second connecting seat 153 is parallel to the first direction.

[0351] By adopting the technical solution of this embodiment, the rotation limiting mechanism 150 adopts the structure of a pull rod 151, a first connecting seat 152, and a second connecting seat 153. The rotation limiting mechanism 150 can more flexibly adapt to the relative rotation between the first frame 110 and the second frame 120, reducing the risk of problems such as tearing or seal failure of the battery device 200. When the first frame 110 and the second frame 120 exceed the preset rotation range, the pull rod 151 can limit the continued rotation between the first frame 110 and the second frame 120, reducing the instability or damage to the vehicle 1000 structure caused by excessive rotation. The rotation limiting mechanism 150 adopts the structure of a pull rod 151, a first connecting seat 152, and a second connecting seat 153, which has a simple structure and good structural reliability, making it suitable for use in vehicles 1000 with large load capacity.

[0352] In some embodiments, the first frame 110 includes a support 111 and a frame 213, the frame 213 being connected between the support 111 and the second frame 120, the side of the frame 213 facing away from the support 111 being rotatably connected to the second frame 120, and the frame 213 being able to serve as at least part of the housing 210 of the battery device 200.

[0353] In some examples, frame 213 is part of box 210, or the entire box 210 is frame 213.

[0354] By adopting the technical solution of this embodiment, the frame 213 of the battery device 200 can be directly used as a component of the vehicle frame 100, which can improve the integration of the vehicle frame 100 and the battery device 200 and improve the structural compactness of the vehicle 1000.

[0355] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle, characterized in that, include: Battery device, The vehicle frame includes a first frame and a second frame, at least one of the first frame and the second frame being connected to the battery device; The first frame is rotatably connected to the second frame on one side along the first direction; the rotation axis of the first frame and the second frame rotating relative to each other is parallel to the first direction, which is the length direction of the frame.

2. The vehicle according to claim 1, characterized in that: The frame also includes a pivot, through which the first frame and the second frame are connected.

3. The vehicle according to claim 2, characterized in that: The first frame has a first rotating hole, and one end of the rotating shaft is rotatably inserted into the first rotating hole along the first direction.

4. The vehicle according to claim 3, characterized in that: The frame has a first limiting structure, which restricts the movement of the pivot shaft within the first rotating hole along the first direction.

5. The vehicle according to claim 4, characterized in that: The first frame has a first connecting part and a first pressure cover, the first pressure cover is fixedly connected to the first connecting part, and the first pressure cover and the first connecting part surround to form the first rotating hole.

6. The vehicle according to claim 5, characterized in that: The first limiting structure includes a first protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The first protrusion is disposed on the side of the first pressure cover facing away from the second frame, and the first protrusion is used to abut against the end face of the first pressure cover facing away from the second frame.

7. The vehicle according to claim 6, characterized in that: The first limiting structure includes a second protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The second protrusion is disposed on the side of the first pressure cover facing the second frame, and the second protrusion is used to abut against the end face of the first pressure cover facing the second frame.

8. The vehicle according to any one of claims 5 to 7, characterized in that: At least one of the first pressure cap and the first connecting portion is provided with a first oil injection nozzle for injecting lubricating oil into the first rotating hole.

9. The vehicle according to any one of claims 2 to 7, characterized in that: The second frame has a second rotating hole, and the other end of the rotating shaft along the first direction is rotatably inserted into the second rotating hole.

10. The vehicle according to claim 9, characterized in that: The frame has a second limiting structure, which restricts the movement of the pivot shaft within the second rotating hole along the first direction.

11. The vehicle according to claim 10, characterized in that: The second frame has a second connecting part and a second pressure cover, the second pressure cover is fixedly connected to the second connecting part, and the second pressure cover and the second connecting part surround to form the second rotating hole.

12. The vehicle according to claim 11, characterized in that: The second limiting structure includes a third protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The third protrusion is disposed on the side of the second pressure cover facing away from the first frame, and the third protrusion is used to abut against the end face of the second pressure cover facing away from the first frame.

13. The vehicle according to claim 12, characterized in that: The second limiting structure includes a second protrusion, which is disposed on the rotating shaft and protrudes from the outer peripheral surface of the rotating shaft. The second protrusion is disposed on the side of the second pressure cover facing the first frame, and the second protrusion is used to abut against the end face of the second pressure cover facing the first frame.

14. The vehicle according to claim 11, characterized in that: At least one of the second pressure cap and the second connecting portion is provided with a second oil injection nozzle for injecting lubricating oil into the second rotating hole.

15. The vehicle according to claim 9, characterized in that: The second frame includes two first side beams and multiple first cross beams. The two first side beams are arranged at intervals along a second direction, and the multiple first cross beams are arranged at intervals along the first direction. The first cross beams are connected between the two first side beams. The first cross beams near the first frame have a second rotating hole in the middle part along the second direction. The second direction is the width direction of the frame.

16. The vehicle according to any one of claims 1 to 7, characterized in that: The frame also includes a rotation limiting mechanism, which connects the first frame and the second frame and is used to limit the rotation range between the first frame and the second frame.

17. The vehicle according to claim 16, characterized in that: The second frame is connected to the first frame via a rotation limiting mechanism on at least one side along a second direction, where the second direction is the width direction of the frame.

18. The vehicle according to claim 17, characterized in that: The rotation limiting mechanism includes a pull rod, a first connecting seat, and a second connecting seat. The first connecting seat is connected to the first frame, and the second connecting seat is connected to the side of the second frame along the second direction. The two ends of the pull rod are respectively hinged to the first connecting seat and the second connecting seat. The hinge axis between the pull rod and the first connecting seat is parallel to the second direction, and the hinge axis between the pull rod and the second connecting seat is parallel to the first direction.

19. The vehicle according to claim 18, characterized in that: The pull rod includes a first hinge portion, a straight segment, an arc segment, and a second hinge portion connected in sequence. The first hinge portion is hinged to the first connecting seat, the second hinge portion is hinged to the second connecting seat, and the straight segment extends along the first direction.

20. The vehicle according to claim 19, characterized in that: The rotation limiting mechanism includes a first hinge shaft, which is connected to the first connecting seat. The first hinge portion has a first hinge hole, and the first hinge shaft passes through the first hinge hole. And / or, the rotation limiting mechanism includes a second hinge shaft, which is connected to the second connecting seat. The second hinge portion has a second hinge hole, and the second hinge shaft passes through the second hinge hole.

21. The vehicle according to any one of claims 1 to 7, characterized in that: The battery device includes a housing and at least one battery cell assembly. The housing has an assembly space, the battery cell assembly is located in the assembly space, and the battery cell assembly includes multiple battery cells. The first frame is connected to the housing.

22. The vehicle according to claim 21, characterized in that: The housing includes a top cover, a bottom plate, and a frame. The top cover and the bottom plate are respectively placed on opposite sides of the frame and enclose the assembly space.

23. The vehicle according to claim 22, characterized in that: The housing also includes a heat exchange plate for heat exchange with the battery cells. The heat exchange plate is disposed within the frame and divides the assembly space into a first cavity and a second cavity. The first cavity is located between the top cover and the heat exchange plate, and the second cavity is located between the bottom plate and the heat exchange plate. At least one battery cell assembly is disposed in the first cavity and at least one battery cell assembly is disposed in the second cavity. A first pressure relief mechanism is provided on the side of the battery cell in the first cavity facing away from the heat exchange plate, and a second pressure relief mechanism is provided on the side of the battery cell in the second cavity facing away from the heat exchange plate.

24. The vehicle according to claim 23, characterized in that: The frame and the heat exchange plate are an integrated structure.

25. The vehicle according to claim 23 or 24, characterized in that: At least one of the first cavity and the second cavity is provided with a reinforcing beam, and at least one of the frame and the heat exchange plate is fixedly connected to the reinforcing beam.

26. The vehicle according to claim 25, characterized in that: The reinforcing beam is fixedly connected to the heat exchange plate and is an integrated structure.

27. The vehicle according to claim 22, characterized in that: The top cover has a first wall portion, the bottom plate has a second wall portion, the first wall portion and the second wall portion are disposed opposite to each other, the battery cell assembly is located between the first wall portion and the second wall portion, at least one of the first wall portion and the second wall portion is recessed toward the battery cell assembly to form a wiring groove for wiring on the outside of the housing and to form a receiving space for accommodating the power distribution device between the corresponding wall portion and the battery cell assembly.

28. The vehicle according to claim 22, characterized in that: The first frame includes a support and the frame, the frame being connected between the support and the second frame, and the side of the frame facing away from the support being rotatably connected to the second frame.

29. The vehicle according to claim 28, characterized in that: The bracket has a first plate, which is connected to one end of the bracket. The surface of the first plate is attached to and connected to the frame.

30. The vehicle according to claim 29, characterized in that: The bracket includes two second side beams and multiple second cross beams. The two second side beams are arranged at intervals along a second direction, and the multiple second cross beams are arranged at intervals along a first direction. The second cross beams are connected between the two second side beams. The second cross beams near the frame are integrated with the first plate. The second direction is the width direction of the vehicle frame.

31. The vehicle according to claim 28, characterized in that: The bracket has a second plate on at least one side along the second direction, and the second plate is bent to form a first plate segment and a second plate segment; the plate surface of the first plate segment is attached to the side of the bracket along the second direction and connected to the bracket, and the plate surface of the second plate segment is attached to the frame and connected to the frame, wherein the second direction is the width direction of the vehicle frame.

32. The vehicle according to claim 31, characterized in that: The second plate is provided with reinforcing ribs, which connect the first plate segment and the second plate segment.

33. The vehicle according to any one of claims 1 to 7, characterized in that: The battery device is fixedly connected to at least one of the first frame and the second frame.

34. The vehicle according to any one of claims 1 to 7, characterized in that: The vehicle in question is a truck.

35. The vehicle according to claim 34, characterized in that: The truck in question is a heavy-duty truck.

36. A vehicle frame, characterized in that, include: First frame; A second frame, at least one of the first frame and the second frame, is used to connect the battery device; The first frame is rotatably connected to the second frame on one side along the first direction; the rotation axis of the first frame and the second frame rotating relative to each other is parallel to the first direction, which is the length direction of the frame.

37. The frame according to claim 36, characterized in that: The frame also includes a pivot, through which the first frame and the second frame are connected.

38. The frame according to claim 36, characterized in that: The frame also includes a rotation limiting mechanism, which connects the first frame and the second frame and is used to limit the rotation range between the first frame and the second frame.

39. The frame according to claim 38, characterized in that: The second frame is connected to the first frame via a rotation limiting mechanism on at least one side along a second direction, where the second direction is the width direction of the frame.

40. The frame according to claim 39, characterized in that: The rotation limiting mechanism includes a pull rod, a first connecting seat, and a second connecting seat. The first connecting seat is connected to the first frame, and the second connecting seat is connected to the side of the second frame along the second direction. The two ends of the pull rod are respectively hinged to the first connecting seat and the second connecting seat. The hinge axis between the pull rod and the first connecting seat is parallel to the second direction, and the hinge axis between the pull rod and the second connecting seat is parallel to the first direction.

41. The frame according to any one of claims 36 to 40, characterized in that: The first frame includes a support and a frame, the frame being connected between the support and the second frame, the side of the frame facing away from the support being rotatably connected to the second frame, and the frame being able to serve as at least part of the housing of the battery device.

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