Vehicle

Abstract

The utility model discloses a vehicle. The vehicle comprises a first structural part and a second structural part, the first structural part comprises a body part and a secondary curing part connected to the body part, the body part comprises continuous fiber composite material layers arranged in multiple layers, each continuous fiber composite material layer comprises continuous fibers and a thermoplastic resin matrix, and the thermoplastic resin matrix is connected with the continuous fibers; the secondary curing part is formed by curing thermoplastic resin; at least part of the first connecting piece is embedded in the secondary curing part and keeps away from the continuous fibers; the second structural part and the first structural part are connected through the connection of the first connecting part and the second connecting part. The vehicle provided by the utility model has high structural strength.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and particularly relates to a vehicle. BACKGROUND

[0002] From the development of market situation, people put forward higher requirements for the safety performance of vehicles. Especially, the vehicle is in an active state during driving, and vibration often occurs. In order to improve the service life of the vehicle and ensure the personal safety of passengers and drivers in the vehicle, the industry gives higher requirements for the structural strength of the vehicle. CONTENT OF THE UTILITY MODEL

[0003] To solve the above technical problems, the present application provides a vehicle with high structural strength.

[0004] The present application is implemented through the following technical solutions.

[0005] The first aspect of the present application provides a vehicle, comprising: a first structural member, comprising a body part and a secondary curing part connected to the body part, the body part comprising a plurality of layers of continuous fiber composite material, each layer of continuous fiber composite material comprising continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connecting the continuous fibers, and the secondary curing part being formed by curing the thermoplastic resin; a first connecting member, at least part of the first connecting member being embedded in the secondary curing part and avoiding the continuous fibers; a second structural member and a second connecting member, the second structural member and the first structural member being connected through the connection of the first connecting member and the second connecting member.

[0006] The body part of the first structural member of the embodiment of the present application uses continuous fiber composite material, which improves the structural strength of the first structural member. Further, the first connecting member is embedded in the secondary curing part formed by curing the thermoplastic resin, and the first connecting member avoids the continuous fibers, thereby maintaining the continuity of the continuous fibers in the first structural member, and further improving the structural strength of the first structural member. In addition, the first structural member and the second structural member are connected through the connection of the first connecting member and the second connecting member. Since the structural strength of the first structural member is high, the structural strength of the structural assembly composed of the first structural member, the second structural member, the first connecting member and the second connecting member is high, thereby improving the structural strength of the vehicle.

[0007] In some embodiments, the first connecting member comprises a first surface exposed relative to the first structural member, the first surface being provided with a connecting hole, and the connecting hole being connected with the second connecting member.

[0008] Thus, the first connecting piece is connected with the second connecting piece through the connecting hole, so that the first structural piece and the second structural piece are connected. Moreover, the connecting hole is arranged on the first connecting piece, the first connecting piece is embedded in the secondary curing part of the first structural piece and avoids the continuous fibers in the body part, so that the arrangement of the connecting hole does not affect the continuity of the continuous fibers in the first structural piece, thereby further improving the structural strength of the first structural piece and the structural strength of the vehicle.

[0009] In some embodiments, the first connecting piece further comprises an arc surface opposite to the first surface along the axial direction of the connecting hole, and the arc surface is embedded in the secondary curing part.

[0010] The first surface is exposed relative to the first structural piece, and the arc surface opposite to the first surface along the axial direction of the connecting hole is close to the body part, so that the arc surface is close to the continuous fibers of the body part. Since the arrangement of the arc surface reduces the number of edges of the first connecting piece, the probability of the first connecting piece cutting off the continuous fibers is reduced, the structural strength of the first structural piece is further improved, and the structural strength of the vehicle is further improved.

[0011] In some embodiments, the distance between the first surface and the arc surface in the axial direction of the connecting hole gradually decreases in a direction away from the center axis of the connecting hole along the radial direction of the connecting hole.

[0012] Thus, the middle of the first connecting piece is thick, and gradually thins towards the edge, so that the extension direction of the continuous fibers of the body part on the side away from the first surface of the arc surface gradually changes, so that the continuous fibers are not easily broken, the structural strength of the first structural piece is further improved, and the structural strength of the vehicle is further improved.

[0013] In some embodiments, part of the outer circumferential surface of the first connecting piece is recessed towards the connecting hole to form at least one axial limiting groove, the groove wall of the axial limiting groove comprises first and second side walls opposite along the axial direction of the connecting hole, and part of the secondary curing part is filled in the limiting groove.

[0014] Thus, the part of the secondary curing part filled in the axial limiting groove is limited between the first and second side walls, limiting the position of the first connecting piece along the axial direction of the connecting hole, reducing the probability of the first connecting piece being pulled out of the secondary curing part along the axial direction of the connecting hole, improving the connection strength of the first connecting piece and the secondary curing part, thereby further improving the structural strength of the structural assembly composed of the first structural piece, the second structural piece, the first connecting piece and the second connecting piece, thereby improving the structural strength of the vehicle. In addition, the arrangement of the axial limiting groove also plays a role in weight reduction.

[0015] In some embodiments, the axial limiting groove is an annular groove surrounding the connecting hole.

[0016] The axial limiting groove is arranged as an annular groove surrounding the connecting hole, thereby improving the limiting effect on the first connecting piece in the axial direction of the connecting hole, and further improving the connecting strength of the first connecting piece and the secondary curing part.

[0017] In some embodiments, the outer circumferential surface of the first connecting piece is formed with two or more axial limiting grooves distributed at intervals around the connecting hole.

[0018] The two or more axial limiting grooves improve the limiting effect on the first connecting piece in the axial direction of the connecting hole, and further improve the connecting strength of the first connecting piece and the secondary curing part.

[0019] In some embodiments, the first side wall is closer to the first surface relative to the second side wall, a part of the first connecting piece on a side of the first side wall away from the second side wall is a first part, a part of the first connecting piece on a side of the second side wall away from the first side wall is a second part, and the orthographic projection of the second part falls within the orthographic projection of the first part in the axial direction of the connecting hole.

[0020] In this way, the second part is arranged to be narrower and thinner than the first part, so that the second part is embedded in a deeper position of the secondary curing part, and the embedding of the first connecting piece and the first structural piece together is facilitated.

[0021] In some embodiments, the first connecting piece is further formed with at least one groove, the groove penetrates from the arc-shaped surface to the axial limiting groove in the axial direction of the connecting hole, and a part of the secondary curing part is filled in the groove.

[0022] In this way, the groove is arranged, so that the thermoplastic resin in a flowable state can flow into the axial limiting groove through the groove, and the axial limiting groove can be filled with the thermoplastic resin, thereby improving the limiting effect on the first connecting piece in the axial direction of the connecting hole, and further improving the connecting strength of the first connecting piece and the secondary curing part. In addition, the arrangement of the groove also has the effect of weight reduction.

[0023] In some embodiments, the groove penetrates to the outer circumferential surface of the first connecting piece.

[0024] In this way, the thermoplastic resin in a flowable state on the outer circumferential side of the first connecting piece can also smoothly enter the groove, thereby entering the axial limiting groove through the groove, further improving the fullness of the thermoplastic resin filled in the axial limiting groove, thereby improving the limiting effect on the first connecting piece in the axial direction of the connecting hole, and further improving the connecting strength of the first connecting piece and the secondary curing part.

[0025] In some embodiments, the hole wall of the connecting hole is formed with an internal thread, the second structural piece is provided with a through hole, the second connecting piece includes a head and a connecting column connected to the head at one end, the outer circumferential surface of the connecting column is formed with an external thread, and the other end of the connecting column passes through the through hole and is threadedly connected to the connecting hole.

[0026] Thus, the connecting column of the second connecting piece is threadedly connected with the connecting hole of the first connecting piece, so that the first structural piece and the second structural piece are connected. Since the first structural piece has high structural strength, the structural assembly composed of the first structural piece, the second structural piece, the first connecting piece and the second connecting piece has high structural strength, thereby improving the structural strength of the vehicle.

[0027] In some embodiments, the first connecting piece is non-circular in at least one of all cross sections of the surface in contact with the secondary curing portion, wherein the cross section is perpendicular to the axial direction of the connecting hole.

[0028] Thus, the relative position of the first connecting piece and the secondary curing portion along the circumferential direction of the connecting hole is limited, thereby restricting the rotation of the first connecting piece relative to the secondary curing portion along the circumferential direction of the connecting hole, and improving the connecting strength of the first connecting piece and the first structural piece.

[0029] In some embodiments, the vehicle includes a battery device for providing electric energy, the battery device including a battery box and at least one battery cell, the battery box including a box body and a box cover covering the box body, the box cover and the box body forming a containing space containing the battery cell, wherein the box cover includes a first structural piece, and the box body includes a second structural piece.

[0030] The box cover of the battery device is made of continuous fiber composite material and is connected with the box body through the thread connection between the first connecting piece and the second connecting piece. Thus, the box cover has high structural strength and light weight, thereby improving the structural strength of the vehicle and lightening the vehicle.

[0031] In some embodiments, the vehicle includes a battery device for providing electric energy, the battery device including a heat exchange plate and at least one battery cell, the heat exchange plate including a first plate and a second plate stacked, a flow channel for a heat exchange medium flowing being formed between the first plate and the second plate, the battery cell being located on a side of the second plate away from the first plate, wherein the first plate includes a first structural piece, and the second plate includes a second structural piece.

[0032] The first plate of the heat exchange plate away from the battery cell is made of continuous fiber composite material and is connected with the second plate through the thread connection between the first connecting piece and the second connecting piece, forming the heat exchange plate and enclosing the flow channel for the heat exchange medium flowing. Thus, the first plate has high structural strength and light weight, thereby improving the structural strength of the vehicle and lightening the vehicle. In addition, the continuous fiber composite material has relatively low thermal conductivity, and therefore, the first plate made of continuous fiber composite material can reduce the heat or cold energy in the flow channel from being dissipated outward through the first plate, thereby improving the heat exchange effect of the heat exchange plate on the battery cell.

[0033] In some embodiments, the battery device further comprises a battery box, the battery box comprising a box body and a box cover, the box body comprising a bottom plate and a frame surrounding the bottom plate, a containing groove being formed between the bottom plate and the frame, an end edge of the frame away from the bottom plate surrounding a containing slot, the box cover covering the containing slot to form a containing space, wherein the bottom plate comprises a heat exchange plate.

[0034] The heat exchange plate is used as the bottom plate of the box body, thereby saving the space occupied by the heat exchange plate and improving the volume energy density of the battery device. In addition, the heat exchange plate is used as the bottom plate, and the sealing performance of the heat exchange plate has a relatively high requirement. The secondary curing part of the first plate of the embodiment of the application is embedded with the first connecting piece, the first connecting piece is connected with the second plate, and a hole does not need to be opened in the first plate, thereby improving the sealing performance of the first plate and the sealing performance of the bottom plate of the battery box, and thereby improving the protection performance of the internal components and the stability of the battery performance.

[0035] In some embodiments, the vehicle comprises a vehicle body, the vehicle body comprising two A-pillars and a cross beam connected between the two A-pillars, the cross beam being connected with an interior trim mounting structure, the interior trim mounting structure being used for mounting a roof trim, the roof trim comprising a roof handle and / or a roof lamp, the cross beam comprising a first structural member, and the interior trim mounting structure comprising a second structural member.

[0036] The cross beam is made of continuous fiber composite material and is connected with the interior trim mounting structure through threaded connection between the first connecting piece and the second connecting piece, so as to realize mounting of the roof trim. In addition, the cross beam has high structural strength and light weight, thereby improving the structural strength of the vehicle and lightening the vehicle.

[0037] In some embodiments, the thermoplastic resin matrix comprises a polyamide unit, and in the polyamide unit, the ratio of the number of carbons on the main carbon chain of the polyamide unit to the number of amide groups is not less than 8.

[0038] In this way, by controlling the ratio of the number of carbons to the number of amide groups in a single structural unit of the thermoplastic resin matrix, the number of CHx groups (methyl and methylene) in a single polyamide unit can be controlled, so as to ensure the strength of the single-layer continuous fiber composite material layer and the breaking elongation of the single-layer continuous fiber composite material layer, so that the continuous fiber composite material layer can meet the requirements of high strength and high breaking elongation.

[0039] In some embodiments, the polyamide comprises any one or a combination of PA610, PA11, PA12, PA1212, PA1012, and PA1313.

[0040] In some embodiments, the continuous fiber comprises one of an organic fiber and an inorganic fiber.

[0041] The organic fiber has high strength, good elasticity and flexibility. The inorganic fiber has high strength and modulus. By matching one or more of the organic fiber and the inorganic fiber with the thermoplastic resin, the strength of the single-layer continuous fiber composite material layer can be improved, and thus the strength of the first structural member can be improved.

[0042] In some embodiments, the inorganic fiber includes any one of glass fiber, aramid fiber or boron fiber; and / or, the organic fiber includes any one of aramid fiber, ultra-high molecular weight polyethylene fiber.

[0043] In some embodiments, the weight fraction of the continuous fiber is 60-80, the weight fraction of the thermoplastic resin matrix is 20-40, and the sum of the weight fraction of the continuous fiber and the weight fraction of the thermoplastic resin matrix is 100.

[0044] By controlling the content of the continuous fiber and the thermoplastic resin matrix within a reasonable range, the probability of the continuous fiber leaking out due to the continuous fiber content being too high and the resin matrix content being too low can be reduced, and the probability of the composite material not being strong enough due to the continuous fiber content being too low and the resin matrix content being too high can be reduced, that is, the content of the continuous fiber and the content of the thermoplastic resin matrix are balanced, so that the performance of the composite material is suitable for making the first structural member.

[0045] In some embodiments, the first structural member is in a plate structure or a long strip structure.

[0046] In this way, the first structural member can be applied to many parts of the vehicle, and the application range is wide. Thus, the structural strength of the vehicle is further improved.

[0047] In some embodiments, the first connecting member is embedded in the first structural member by a molding method.

[0048] The parts made of the continuous fiber composite material are usually formed by a molding method. The embodiment of the present application utilizes the characteristic that the thermoplastic resin in the continuous fiber composite material is in a molten state during molding, embeds the first connecting member in the mold, and embeds the first connecting member in the first structural member at the same time of molding. In this way, the embedding of the first connecting member is completed at the same time of forming the first structural member, the production efficiency is high, and the connection strength is high.

[0049] In some embodiments, the vehicle includes a chassis and a vehicle body arranged on the chassis, and the vehicle body and the chassis jointly enclose a passenger compartment of the vehicle.

[0050] In some embodiments, the vehicle includes a battery device, and a battery box of the battery device forms a floor of the passenger compartment.

[0051] By integrating the battery device to the floor of the passenger compartment, additional supports and connections can be reduced, which helps to reduce the overall weight of the vehicle and makes more efficient use of the interior space of the vehicle.

[0052] In some embodiments, the chassis and the body are detachably connected.

[0053] In this way, the body and the chassis are decoupled, so that the body can be replaced according to requirements, shortening the development cycle and reducing costs. In other words, the integration of the chassis is improved, and various vehicle models can be adapted.

[0054] The beneficial effects of the embodiments of the present disclosure include: by the present application, a vehicle with high structural strength is provided. BRIEF DESCRIPTION OF DRAWINGS

[0055] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings provided herein are for illustrative purposes only and are not meant to limit the application in any way. Moreover, like reference numerals in the figures indicate like elements throughout the various drawings. In the drawings:

[0056] Figure 1 is a perspective exploded view of a vehicle according to one or more embodiments;

[0057] Figure 2 is a structural view of a vehicle according to one or more embodiments;

[0058] Figure 3 is a perspective exploded view of a battery device provided for some embodiments of the present application;

[0059] Figure 4 is a perspective exploded view of a battery cell provided for some embodiments of the present application;

[0060] Figure 5 is a view of the connection between the first structural member and the second structural member provided for some embodiments of the present application;

[0061] Figure 6 is a structural view of the connected first structural member and first connection member provided for some embodiments of the present application;

[0062] Figure 7 is a perspective structural view of the first connection member provided for some embodiments of the present application;

[0063] Figure 8 is a front view of the first connection member provided for some embodiments of the present application;

[0064] Figure 9 is a bottom view of the first connection member provided for some embodiments of the present application;

[0065] Figure 10 A perspective structural schematic view of a partial structure of a battery device provided for some embodiments of the present application;

[0066] Figure 11 A structural schematic view of a box of a battery device provided for some embodiments of the present application;

[0067] Figure 12 A perspective structural schematic view of a box of a battery device provided for some embodiments of the present application; Figure 11 An enlarged view of the middle A;

[0068] Figure 13 An exploded schematic view of a vehicle body provided for some embodiments of the present application;

[0069] Figure 14 A partial structural schematic view of a vehicle body provided for some embodiments of the present application;

[0070] Figure 15 A schematic view of a first structural member before a first connecting member is molded into a continuous fiber composite plate for manufacturing some embodiments of the present application;

[0071] Figure 16 A schematic view of a first structural member when a first connecting member is just molded into a continuous fiber composite plate for manufacturing some embodiments of the present application;

[0072] Figure 17 A schematic view of a first structural member when the first structural member has been shaped to embed a first connecting member for manufacturing some embodiments of the present application.

[0073] Explanation of Reference Signs

[0074] 1000 vehicle; 100 battery device; 200 controller; 300 motor; 400 chassis; 500 vehicle body; 501 A-pillar; 502 cross beam; 503 interior trim mounting structure; 504 B-pillar; 505 C-pillar; 506 rocker beam; 507 bumper; 508 hood; 509 door panel; 510 window frame; 10 battery box; 101 box cover; 102 box body; 1021 bottom plate; 1022 frame; 1 battery cell; 11 outer shell; 111 end cap; 112 shell; 12 electrode assembly; 120 tab; 13 electrode terminal; 14 pressure relief mechanism; 2 first structural member; 21 body portion; 22 secondary curing portion; 3 second structural member; 31 through hole; 4 first connecting member; 41 first surface; 42 connecting hole; 43 arc surface; 44 axial limiting groove; 441 first side wall; 442 second side wall; 45 first portion; 46 second portion; 47 groove; 471 third side wall; 472 fourth side wall; 5 second connecting member; 51 head portion; 52 connecting column; 6 heat exchange plate; 60 flow channel; 61 first plate; 62 second plate; 2001 lower mold; 2002 upper mold; 2003 continuous fiber composite plate; 2004 profile groove. DETAILED DESCRIPTION

[0075] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "including," "comprising," and "having," and variations thereof, as used in the specification and the annexed drawings, are intended to cover the inclusions "without limitation."

[0077] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0078] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0079] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0080] In the description of the embodiments of the present application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation, be operated or used, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0081] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing", and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0082] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0083] In the following, the present application will be described in detail.

[0084] From the development of market situation, people have higher requirements for the safety performance of vehicles. In particular, the vehicle is in a state of activity during driving, and vibration often occurs, so the requirement for the structural strength of the vehicle is relatively high in order to improve the service life of the vehicle and ensure the personal safety of passengers in the vehicle.

[0085] At present, some beam bodies and sheet materials of vehicles are made of resin materials, for example, some beam bodies for installing interior of the vehicle body, battery boxes of new energy vehicles with batteries, etc., but the structural strength of parts made of ordinary resin materials is poor, which is easy to be damaged due to collision or vibration, affecting the service life of the vehicle and the personal safety of passengers.

[0086] The inventors of the present application have found through research that by replacing the ordinary resin material with a composite material including a thermoplastic resin and continuous fibers, the structural strength of the component part can be enhanced without increasing the weight, which is conducive to improving the structural strength of the vehicle.

[0087] However, the inventors have also noticed that the component part made of the composite material is connected to other structural members by means of bolts passing through, that is, the composite material is provided with a through hole, and the through hole will cut the continuous fibers in the composite material, and the structural strength of the composite material is greatly benefited from the continuity of the continuous fibers, therefore, the setting of the through hole will affect the structural strength of the component part, and further affect the structural strength of the vehicle. In view of this, the inventors of the present application have found through research that by embedding the nut into the secondary fixing part formed by the resin material of the composite material through secondary curing, the nut is kept away from the continuous fibers, that is, the continuity of the continuous fibers is maintained, thereby improving the structural strength of the component part, thereby improving the structural strength of the assembly composed of the component part and other components connected thereto by bolts, and further improving the structural strength of the vehicle.

[0088] Based on such design concept, the inventors of the present application have designed a vehicle, which comprises a first structural member, a first connecting member, a second structural member and a second connecting member, the first structural member comprises a body part and a secondary curing part connected to the body part, the body part comprises a plurality of layers of continuous fiber composite material, each layer of the continuous fiber composite material comprises continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connects the continuous fibers, and the secondary curing part is formed by curing the thermoplastic resin; at least part of the first connecting member is embedded in the secondary curing part and kept away from the continuous fibers; the second structural member is connected to the first structural member through the connection of the first connecting member and the second connecting member.

[0089] The design improves the structural strength of the first structural member by using the continuous fiber composite material for the body part of the first structural member, and further embeds the first connecting member in the secondary curing part formed by curing the thermoplastic resin, and keeps the first connecting member away from the continuous fibers, thereby maintaining the continuity of the continuous fibers in the first structural member, and further improving the structural strength of the first structural member. In addition, the first structural member and the second structural member are connected through the connection of the first connecting member and the second connecting member, and since the structural strength of the first structural member is high, the structural strength of the structural assembly composed of the first structural member, the second structural member, the first connecting member and the second connecting member is high, thereby improving the structural strength of the vehicle.

[0090] The first structural member provided in the embodiments of the present application can be any part of a vehicle that can use continuous fiber composite materials, and can be a beam body, a plate or a block. The second structural member can be any part that needs to be connected to the first structural member. The first connecting member and the second connecting member can be any pair of connecting members that can connect the first structural member and the second structural member together by mutual connection, for example, one of the first connecting member and the second connecting member is a nut, and the other is a bolt.

[0091] The vehicle provided in the embodiments of the present application can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid automobile or a range extended automobile, etc. The embodiments of the present application do not specially limit the above vehicle.

[0092] In the following embodiments, the following is described in conjunction with the accompanying drawings for the convenience of description.

[0093] Figure 1 A perspective exploded view of a vehicle according to one or more embodiments.

[0094] The vehicle 1000 can be a fuel automobile, a gas automobile or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid automobile or a range extended automobile, etc. As shown in Figure 1 The vehicle 1000 includes a chassis 400 and a vehicle body 500 arranged on the chassis 400. The vehicle body 500 and the chassis 400 jointly enclose a passenger compartment of the vehicle 1000.

[0095] In some embodiments of the present application, the chassis 400 and the vehicle body 500 are detachably connected.

[0096] For example, the chassis 400 can be a skateboard chassis, and the vehicle body 500 and the skateboard chassis are detachably connected by a plurality of bolts along a circumference of the vehicle body 500.

[0097] In this way, the separation and decoupling of the vehicle body 500 and the chassis 400 are achieved, so that the vehicle body 500 can be replaced according to requirements, the development cycle is shortened, and the cost is reduced. In other words, the integration of the chassis 400 is improved, and a plurality of vehicle models can be adapted.

[0098] Figure 2 A structural schematic view of a vehicle according to one or more embodiments.

[0099] In some embodiments of the present application, as Figure 2As shown, the interior of the vehicle 1000 is provided with a battery apparatus 100, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery apparatus 100 can be used to supply power to the vehicle 1000, for example, the battery apparatus 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 can also include a controller 200 and a motor 300 arranged on the chassis 400, the controller 200 is used to control the battery apparatus 100 to supply power to the motor 300, for example, to meet the power demand of the vehicle 1000 during starting, navigation and driving. The battery apparatus 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0100] In some embodiments of the present application, the vehicle 1000 includes a battery apparatus 100, and the battery box 10 of the battery apparatus 100 forms the floor of the passenger compartment.

[0101] By integrating the battery apparatus 100 into the floor of the passenger compartment, additional supports and connections can be reduced, which helps to reduce the overall weight of the vehicle 1000, and the interior space of the vehicle 1000 can be more effectively utilized.

[0102] The battery apparatus mentioned in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, parallel or mixed connection through a busbar.

[0103] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells.

[0104] As an example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0105] In some embodiments, the battery apparatus can be a battery pack, which includes a battery box and one or more battery cell assemblies accommodated in the battery box.

[0106] As an example, the battery cell assembly can be a battery module, which can be accommodated in the battery box by fixing the battery module in the battery box.

[0107] As an example, the battery cell assembly can also be accommodated in the battery box by directly fixing a plurality of battery cells in the battery box.

[0108] Figure 3 A perspective exploded schematic view of a battery device 100 according to one or more embodiments.

[0109] As shown in Figure 3 , the battery device 100 includes a battery case 10 and at least one battery cell 1, the battery case 10 is provided with an accommodation space, and the at least one battery cell 1 is accommodated in the accommodation space.

[0110] In some embodiments of the present application, the battery case 10 includes a case body 102 and a case cover 101, the case cover 101 covers the case body 102, so as to form the accommodation space between the case body 102 and the case cover 101.

[0111] The case body 102 can be a hollow structure with one end open, and the case cover 101 can be a plate-shaped structure, the case cover 101 covers the open side of the case body 102, so that the case cover 101 and the case body 102 jointly define the accommodation space; the case cover 101 and the case body 102 can also be hollow structures with one side open, and the open side of the case cover 101 covers the open side of the case body 102. Of course, the battery case 10 formed by the case cover 101 and the case body 102 can have various shapes, such as a cylinder, a cuboid, etc.

[0112] In the battery device 100, the battery cell 1 can be multiple, and the multiple battery cells 1 can be connected in series, in parallel, or in a mixed manner, the mixed manner means that the multiple battery cells 1 are connected in series and in parallel. The multiple battery cells 1 can be directly connected in series, in parallel, or in a mixed manner, and then the whole formed by the multiple battery cells 1 is placed in the accommodation space formed by the case body 102 and the case cover 101; of course, the battery device 100 can also be that the multiple battery cells 1 are first connected in series, in parallel, or in a mixed manner to form a battery module, and then the multiple battery modules are connected in series, in parallel, or in a mixed manner to form a whole, and are accommodated in the accommodation space formed by the case body 102 and the case cover 101. The battery device 100 can also include other structures, for example, the battery device 100 can also include a current collecting component for realizing the electrical connection between the multiple battery cells 1.

[0113] In the embodiments of the present application, the battery cell 1 can be a secondary battery, which means that the battery cell can be activated by charging after discharging to continue to be used.

[0114] The battery cell 1 can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present application are not limited thereto.

[0115] As an example, the battery cell 1 can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes, the prismatic battery cell including a square battery cell, a blade battery cell, a multi-prismatic battery cell, for example, a hexagonal battery cell, etc., without special limitation in the present application.

[0116] Figure 4 A perspective exploded view of a battery cell 1 according to one or more embodiments.

[0117] The battery cell 1 refers to the smallest unit constituting a battery. Please refer to Figure 4 The battery cell 1 includes a housing 11, an electrode assembly 12, and other functional components. The housing 11 includes an end cap 111 and a case 112 having a receiving space and an opening, the electrode assembly 12 being disposed in the receiving space, and the end cap 111 closing the opening of the case 112.

[0118] The end cap 111 refers to a component that covers the opening of the case 112 to isolate the internal environment of the battery cell 1 from the external environment. Without limitation, the shape of the end cap 111 can be adapted to the shape of the case 112 to fit the case 112. Alternatively, the end cap 111 can be made of a material having a certain hardness and strength, such as an aluminum alloy, so that the end cap 111 is less likely to deform when subjected to extrusion and collision, allowing the battery cell 1 to have higher structural strength and improved safety performance. The electrode terminal 13 is electrically connected to the electrode assembly 12 for outputting or inputting the electrical energy of the battery cell 1.

[0119] In some embodiments of the present application, the end cap 111 can further be provided with a pressure relief mechanism 14 for relieving the internal pressure when the internal pressure or temperature of the battery cell 1 reaches a threshold value. The material of the end cap 111 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., without special limitation in the embodiments of the present application. In some embodiments of the present application, an insulating member can also be provided on the inner side of the end cap 111, which can be used to isolate the electrical connection components in the case 112 from the end cap 111 to reduce the risk of short circuit. As an example, the insulating member can be plastic, rubber, etc.

[0120] The shell 112 is a component for cooperating with the end cover 111 to form an internal environment of the battery cell 1, wherein the formed internal environment can be used to accommodate the electrode assembly 12, electrolyte and other components. The shell 112 and the end cover 111 can be independent components, and an opening can be provided on the shell 112, and the end cover 111 is used to cover the opening to form the internal environment of the battery cell 1. Without limitation, the end cover 111 and the shell 112 can also be integrated, specifically, the end cover 111 and the shell 112 can form a common connecting surface before other components enter the shell, and when it is necessary to seal the internal environment of the shell 112, the end cover 111 is used to cover the shell 112. The shell 112 can be various shapes and sizes, such as a cuboid, a cylinder, a hexagonal prism, etc. Specifically, the shape of the shell 112 can be determined according to the specific shape and size of the electrode assembly 12. The material of the shell 112 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not make special limitations.

[0121] The electrode assembly 12 is a component where electrochemical reactions occur in the battery cell 1. One or more electrode assemblies 12 can be contained in the shell 112. The electrode assembly 12 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and an insulating member is usually provided between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet and the negative electrode sheet have a portion with active material constituting a main body of the electrode assembly, and a portion without active material of the positive electrode sheet and the negative electrode sheet respectively constitutes the tab 120. The positive electrode tab and the negative electrode tab can be located at one end of the main body or at two ends of the main body respectively. In the charging and discharging process of the battery, the positive active material and the negative active material react with the electrolyte, and the tab 120 is connected to the electrode terminal 13 to form a current loop.

[0122] Hereinafter, the embodiments of the present application will be described in detail with reference to the accompanying drawings. Figures 5 to 17 The embodiments of the present application will be described in detail.

[0123] Figure 5 The schematic view of the connection between the first structural member and the second structural member provided for some embodiments of the present application; Figure 6 The structural schematic view of the connected first structural member and the first connecting member provided for some embodiments of the present application; Figure 7 The three-dimensional structural schematic view of the first connecting member provided for some embodiments of the present application;

[0124] Figure 8 The front view of the first connecting member provided for some embodiments of the present application; Figure 9 The bottom view of the first connecting member provided for some embodiments of the present application; Figure 10 The three-dimensional structural schematic view of the partial structure of the battery device provided for some embodiments of the present application; Figure 11A structural schematic diagram of a battery device provided for some embodiments of the present application; Figure 12 A structural schematic diagram of a battery device provided for some embodiments of the present application; Figure 11 An enlarged view of A in FIG. 1; Figure 13 An exploded schematic diagram of a vehicle body provided for some embodiments of the present application; Figure 14 A partial structural schematic diagram of a vehicle body provided for some embodiments of the present application; Figure 15 A schematic diagram of a first structural member before a first connecting member is molded into a continuous fiber composite plate for manufacturing some embodiments of the present application; Figure 16 A schematic diagram of a first structural member when a first connecting member is just molded into a continuous fiber composite plate for manufacturing some embodiments of the present application; Figure 17 A schematic diagram of a first structural member when the first structural member has been shaped to embed a first connecting member for manufacturing some embodiments of the present application.

[0125] The embodiments of the present application provide a vehicle 1000, as shown in Figure 5 The vehicle 1000 includes a first structural member 2, a first connecting member 4, a second structural member 3, and a second connecting member 5. The first structural member 2 includes a body portion 21 and a secondary cured portion 22 connected to the body portion 21. The body portion 21 includes multiple layers of continuous fiber composite material, each layer of continuous fiber composite material including continuous fibers and a thermoplastic resin matrix connecting the continuous fibers. The secondary cured portion 22 is formed by curing a thermoplastic resin. At least a portion of the first connecting member 4 is embedded in the secondary cured portion 22 and avoids the continuous fibers. The second structural member 3 is connected to the first structural member 2 through the connection of the first connecting member 4 and the second connecting member 5.

[0126] Referring to Figure 6 , the dashed line in the figure shows the boundary between the secondary cured portion 22 and the body portion 21. The material of the secondary cured portion 22 is a thermoplastic resin, and the material of the body portion 21 includes a thermoplastic resin matrix and continuous fibers disposed in the thermoplastic resin matrix. The thermoplastic resin forming the secondary cured portion 22 can be the same as the thermoplastic resin material of the thermoplastic resin matrix of the body portion 21. The thermoplastic resin is melted by molding, and the part of the thermoplastic resin in a flowable state is wrapped around the outer surface of the first connecting member 4. After solidification, the secondary cured portion 22 embedding the first connecting member 4 is formed, and the other thermoplastic resin in a flowable state is impregnated with the continuous fibers. After solidification, the body portion 21 is formed.

[0127] The first structural member 2 can be any part of the vehicle 1000 that can use continuous fiber composite material, can be a connecting beam of the vehicle body, can be part of the battery box 10 of the battery device 100 in the vehicle 1000, or can be a lower plate of a heat exchange plate in the battery device 100. The second structural member 3 can be any part that needs to be connected to the first structural member 2. The first connecting member 4 and the second connecting member 5 can be any pair of connecting members that can connect the first structural member 2 and the second structural member 3 together by mutual connection. For example, one of the first connecting member and the second connecting member is a nut, and the other is a bolt.

[0128] The first structural member 2 is made of continuous fiber composite material, which improves the structural strength of the first structural member 2. Further, the first connecting member 4 is embedded in the secondary curing portion 22 formed by curing the thermoplastic resin, and the first connecting member 4 avoids the continuous fibers, thereby maintaining the continuity of the continuous fibers in the first structural member 2, and further improving the structural strength of the first structural member 2. In addition, the first structural member 2 and the second structural member 3 are connected by the first connecting member 4 and the second connecting member 5. Since the first structural member 2 has high structural strength, the structural assembly composed of the first structural member 2, the second structural member 3, the first connecting member 4, and the second connecting member 5 has high structural strength, thereby improving the structural strength of the vehicle 1000.

[0129] In some embodiments of the present application, as shown in Figure 6 The first connecting member 4 includes a first surface 41 exposed relative to the first structural member 2, and the first surface 41 is provided with a connecting hole 42 connected with the second connecting member 5.

[0130] The first surface 41 of the first connecting member 4 is exposed relative to the first structural member 2, and the connecting hole 42 is provided on the first surface 41, that is, the connecting hole 42 has an opening formed on the first surface 41, and the second connecting member 5 is connected with the connecting hole 42 through the opening. For example, the second connecting member 5 has a column body penetrating into the connecting hole 42 through the opening. The column body can be a light axis in interference fit with the connecting hole 42, or can be a threaded shaft in threaded connection with the connecting hole 42 having an internal thread.

[0131] In this way, the first connecting member 4 is connected with the second connecting member 5 through the connecting hole 42, thereby realizing the connection of the first structural member 2 and the second structural member 3. Moreover, the connecting hole 42 is provided on the first connecting member 4, the first connecting member 4 is embedded in the secondary curing portion 22 of the first structural member 2 and avoids the continuous fibers in the body portion 21. Therefore, the provision of the connecting hole 42 does not affect the continuity of the continuous fibers in the first structural member 2, thereby further improving the structural strength of the first structural member 2, and improving the structural strength of the vehicle 1000.

[0132] In some embodiments of the present application, as shown inFigure 6 As shown, the first connecting member 4 further comprises an arc surface 43 opposite to the first surface 41 along the axial direction of the connecting hole 42, and the arc surface 43 is embedded in the secondary curing portion 22.

[0133] The first surface 41 is exposed relative to the first structural member 2, and the arc surface 43 opposite to the first surface 41 along the axial direction of the connecting hole 42 is close to the body portion 21, so that the arc surface 43 is close to the continuous fibers of the body portion 21. Due to the arrangement of the arc surface 43, the number of edges of the first connecting member 4 is reduced, so that the probability of the first connecting member 4 cutting the continuous fibers is reduced, and the structural strength of the first structural member 2 is further improved, and the structural strength of the vehicle 1000 is further improved.

[0134] In some embodiments of the present application, as shown, Figure 6 As shown, the distance between the first surface 41 and the arc surface 43 in the axial direction of the connecting hole 42 gradually decreases in the direction away from the center axis of the connecting hole 42 along the radial direction of the connecting hole 42.

[0135] In this way, the middle of the first connecting member 4 is thick, and gradually thins towards the edge, so that the extension direction of the continuous fibers of the body portion 21 on the side away from the first surface 41 of the arc surface 43 gradually changes, so that the continuous fibers are not easy to break, and the structural strength of the first structural member 2 is further improved, and the structural strength of the vehicle 1000 is further improved.

[0136] In some embodiments of the present application, as shown, Figures 6 to 8 As shown, part of the outer circumferential surface of the first connecting member 4 is recessed towards the connecting hole 42 to form at least one axial limiting groove 44, and the groove wall of the axial limiting groove 44 comprises first and second side walls 441 and 442 opposite along the axial direction of the connecting hole 42, and part of the secondary curing portion 22 is filled in the axial limiting groove 44.

[0137] In this way, the part of the secondary curing portion 22 filled in the axial limiting groove 44 is limited between the first and second side walls 441 and 442, which limits the position of the first connecting member 4 along the axial direction of the connecting hole 42, reduces the probability of the first connecting member 4 being separated from the secondary curing portion 22 along the axial direction of the connecting hole 42, and improves the connection strength of the first connecting member 4 and the secondary curing portion 22, thereby further improving the structural strength of the structural assembly composed of the first structural member 2, the second structural member 3, the first connecting member 4 and the second connecting member 5, and thereby improving the structural strength of the vehicle 1000. In addition, the arrangement of the axial limiting groove 44 also plays a role in weight reduction.

[0138] In some embodiments of the present application, the outer circumferential surface of the first connecting member 4 is formed with two or more axial limiting grooves 44 spaced around the connecting hole 42.

[0139] By arranging two or more axial limiting grooves 44, the axial limiting effect of the first connecting piece 4 along the connecting hole 42 is improved, and the connecting strength of the first connecting piece 4 and the secondary curing part 22 is further improved.

[0140] In some embodiments of the present application, as shown in Figure 7 and Figure 8 The axial limiting groove 44 is an annular groove surrounding the connecting hole 42.

[0141] By arranging the axial limiting groove 44 as an annular groove surrounding the connecting hole 42, the axial limiting effect of the first connecting piece 4 along the connecting hole 42 is improved, and the connecting strength of the first connecting piece 4 and the secondary curing part 22 is further improved.

[0142] In some embodiments of the present application, as shown in Figure 7 and Figure 8 The first side wall 441 is closer to the first surface 41 than the second side wall 442, the part of the first connecting piece 4 on the side of the first side wall 441 away from the second side wall 442 is the first part 45, the part of the first connecting piece 4 on the side of the second side wall 442 away from the first side wall 441 is the second part 46, and the orthographic projection of the second part 46 falls within the orthographic projection of the first part 45 along the axial projection of the connecting hole 42.

[0143] In this way, the second part 46 is arranged to be narrower and thinner than the first part 45, which facilitates the second part 46 to be embedded in a deeper position of the secondary curing part 22, and improves the degree of ease of embedding the first connecting piece 4 and the first structural piece 2 together.

[0144] In some embodiments of the present application, the first connecting piece 4 further forms at least one groove 47, the groove 47 penetrates from the arc surface 43 to the axial limiting groove 44 along the axial direction of the connecting hole 42, and part of the secondary curing part 22 is filled in the groove 47.

[0145] In this way, by arranging the groove 47, the thermoplastic resin in a flowable state can flow through the groove 47 to the axial limiting groove 44, so that the axial limiting groove 44 can be filled with thermoplastic resin, thereby improving the axial limiting effect of the first connecting piece 4 along the connecting hole 42, and further improving the connecting strength of the first connecting piece 4 and the secondary curing part 22. In addition, the arrangement of the groove 47 also has the effect of reducing weight.

[0146] In some embodiments of the present application, the groove 47 penetrates to the outer circumferential surface of the first connecting piece 4.

[0147] Thus, the flowable thermoplastic resin on the outer circumferential side of the first connecting member 4 can also smoothly enter the groove 47, thereby passing through the groove 47 into the axial limiting groove 44, further improving the fullness of the thermoplastic resin filled in the axial limiting groove 44, thereby improving the limiting effect of the first connecting member 4 along the axial direction of the connecting hole 42, and further improving the connecting strength of the first connecting member 4 and the secondary curing portion 22.

[0148] In some embodiments of the present application, as shown in Figure 8 The groove wall of the groove 47 includes a third side wall 471 and a fourth side wall 472 opposite along the circumferential direction of the connecting hole 42, and the secondary curing portion 22 is partially filled in the groove 47.

[0149] The groove 47 limits the relative position of the first connecting member 4 and the secondary curing portion 22 along the circumferential direction of the connecting hole 42, further improving the connecting strength of the first connecting member 4 and the first structural member 2.

[0150] In some embodiments of the present application, as shown in Figure 9 The first connecting member 4 is uniformly provided with four grooves 47 along the circumferential direction of the connecting hole 42.

[0151] In some embodiments of the present application, as shown in Figure 9 At least part of the outer circumferential surface of the first connecting member 4 is in the shape of a circular arc.

[0152] For example, as shown in Figure 9 The outer circumferential surface of the first portion 45 of the first connecting member 4 is in the shape of a cylinder, and part of the outer circumferential surface of the second portion 46 is also in the shape of a cylinder, and the cylindrical surface of the second portion 46 is connected with the arc-shaped surface 43.

[0153] Thus, by setting at least part of the outer circumferential surface of the first connecting member 4 in the shape of a circular arc, the number of edges and corners is reduced, thereby reducing the probability of the first connecting member 4 cutting the continuous fibers, thereby improving the structural strength of the first structural member 2.

[0154] In some embodiments of the present application, as shown in Figure 5 The hole wall of the connecting hole 42 is formed with an internal thread, the second structural member 3 is provided with a through hole 31, the second connecting member 5 includes a head 51 and a connecting column 52 connected with the head 51 at one end, the outer circumferential surface of the connecting column 52 is formed with an external thread, and the other end of the connecting column 52 passes through the through hole 31 and is threadedly connected to the connecting hole 42.

[0155] Thus, the connecting column 52 of the second connecting member 5 is screwed with the connecting hole 42 of the first connecting member 4, so that the first structural member 2 and the second structural member 3 are connected. Since the first structural member 2 has high structural strength, the structural assembly composed of the first structural member 2, the second structural member 3, the first connecting member 4 and the second connecting member 5 has high structural strength, thereby improving the structural strength of the vehicle 1000.

[0156] In some embodiments of the present application, the surface of the first connecting member 4 in contact with the secondary cured portion 22 is non-circular in at least one of all cross sections perpendicular to the axial direction of the connecting hole 42.

[0157] Thus, the relative position of the first connecting member 4 and the secondary cured portion 22 along the circumferential direction of the connecting hole 42 is limited, thereby restricting the rotation of the first connecting member 4 relative to the secondary cured portion 22 along the circumferential direction of the connecting hole 42, and improving the connection strength of the first connecting member 4 and the first structural member 2.

[0158] In some embodiments of the present application, as shown in Figure 2 and Figure 3 The vehicle 1000 includes a battery device 100, and the battery device 100 includes the battery case 10 and at least one battery cell 1. The battery case 10 includes a case body 102 and a case cover 101 covering the case body 102, and a receiving space for accommodating the battery cell 1 is formed between the case cover 101 and the case body 102. The case cover 101 includes the first structural member 2, and the case body 102 includes the second structural member 3.

[0159] Specifically, as shown in Figure 3 and Figure 5 The edge of the case cover 101 includes a body portion 21 and a secondary cured portion 22 connected to the body portion 21. The body portion 21 includes a plurality of layers of continuous fiber composite material, each layer of continuous fiber composite material includes continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connects the continuous fibers, and the secondary cured portion 22 is formed by curing the thermoplastic resin. At least a part of the first connecting member 4 is embedded in the secondary cured portion 22 and avoids the continuous fibers. The edge of the case body 102 is provided with a through hole 31, and the end of the connecting column 52 of the second connecting member 5 away from the head 51 passes through the through hole 31 and is screwed with the connecting hole 42 of the first connecting member 4.

[0160] The case cover 101 of the battery device 100 adopts continuous fiber composite material and is connected with the case body 102 through the screw connection between the first connecting member 4 and the second connecting member 5. Thus, the case cover 101 has high structural strength and light weight, thereby improving the structural strength of the vehicle 1000 and lightening the vehicle 1000.

[0161] In some embodiments of the present application, as shown in Figure 2 , Figures 10 to 12As shown in the figure, the vehicle 1000 comprises a battery device 100 for providing electric energy, the battery device 100 comprising a heat exchange plate 6 and at least one battery cell 1, the heat exchange plate 6 comprising a first plate 61 and a second plate 62 arranged in a stack, a flow channel 60 for a heat exchange medium to flow being formed between the first plate 61 and the second plate 62, the battery cell 1 being located on a side of the second plate 62 away from the first plate 61, wherein the first plate 61 comprises a first structural member 2, and the second plate 62 comprises a second structural member 3.

[0162] Specifically, as shown in the figure, Figure 5 and Figure 12 the first plate 61 comprises a body portion 21 and a secondary cured portion 22 connected to the body portion 21, the body portion 21 comprises a plurality of layers of continuous fiber composite material arranged in a stack, each layer of continuous fiber composite material comprises continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connects the continuous fibers, and the secondary cured portion 22 is formed by curing of the thermoplastic resin; at least part of the first connecting member 4 is embedded in the secondary cured portion 22 and avoids the continuous fibers; the second plate 62 is provided with a through hole 31, and an end of the connecting column 52 of the second connecting member 5 away from the head 51 passes through the through hole 31 and is threadedly connected to the connecting hole 42 of the first connecting member 4.

[0163] The first plate 61 of the heat exchange plate 6 away from the battery cell 1 is made of continuous fiber composite material and is connected to the second plate 62 through the threaded connection between the first connecting member 4 and the second connecting member 5 to form the heat exchange plate 6 and enclose the flow channel 60 for the heat exchange medium to flow, so that the first plate 61 has high structural strength and light weight, thereby improving the structural strength of the vehicle 1000 and lightening the vehicle 1000. Moreover, the thermal conductivity of the continuous fiber composite material is relatively low, so that the use of the continuous fiber composite material for the first plate 61 can reduce the dissipation of thermal energy or cold energy in the flow channel 60 to the outside through the first plate 61, thereby improving the heat exchange effect of the heat exchange plate 6 on the battery cell 1.

[0164] In some embodiments of the present application, as shown in the figure, Figure 2 and Figure 3 the vehicle 1000 comprises a battery device 100 for providing electric energy, the battery device 100 comprising a battery box 10 and at least one battery cell 1, the battery box 10 comprising a box body 102 and a box cover 101, as shown in the figure, Figures 10 to 12 the box body 102 comprises a bottom plate 1021 and a frame 1022 surrounding the bottom plate 1021, a containing groove being formed between the bottom plate 1021 and the frame 1022, and an end edge of the frame 1022 away from the bottom plate 1021 encloses a containing notch, and the box cover 101 covers the containing notch to form a containing space, wherein the bottom plate 1021 comprises the heat exchange plate 6.

[0165] The heat exchange plate 6 is used as the bottom plate 1021 of the box body 102, which saves the space occupied by the heat exchange plate 6, improves the volume energy density of the battery device 100, and in addition, the heat exchange plate 6 is used as the bottom plate 1021, which has relatively high requirements for the sealing performance of the heat exchange plate 6, and the secondary curing part 22 of the first plate 61 in the embodiment of the application is embedded with the first connecting piece 4, which is connected with the second plate 62 through the first connecting piece 4, and there is no need to open a hole in the first plate 61, thereby improving the sealing performance of the first plate 61, and then improving the sealing performance of the bottom plate 1021 of the battery box 10, thereby improving the protection performance of the internal components and improving the stability of the battery performance.

[0166] In some embodiments of the application, as shown in Figure 13 , the vehicle 1000 includes a vehicle body 500, which generally includes a load-bearing structure and an appearance structure, wherein the load-bearing structure generally includes an A-pillar 501, a B-pillar 504, a C-pillar 505, a rocker beam 506, a cross beam 502, a bumper 507, etc., and the appearance structure generally includes an engine hood 508, a door panel 509, a window frame 510, etc.

[0167] In some embodiments of the application, as shown in Figure 13 and Figure 14 , the vehicle body 500 includes two A-pillars 501 and a cross beam 502 connected between the two A-pillars 501, and the cross beam 502 is connected with an interior trim mounting structure 503 for mounting a roof trim, which includes a roof handle and / or a roof lamp, and the cross beam 502 includes a first structural member 2 and the interior trim mounting structure 503 includes a second structural member 3.

[0168] Specifically, as shown in Figure 5 , Figure 13 and Figure 14 , the cross beam 502 includes a body part 21 and a secondary curing part 22 connected to the body part 21, the body part 21 includes a plurality of layers of continuous fiber composite material layers, each layer of continuous fiber composite material layer includes continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connects the continuous fibers, and the secondary curing part 22 is formed by curing the thermoplastic resin; at least part of the first connecting piece 4 is embedded in the secondary curing part 22 and avoids the continuous fibers; the interior trim mounting structure 503 is provided with a through hole 31, and one end of the connecting column 52 of the second connecting piece 5 away from the head 51 passes through the through hole 31 and is threadedly connected to the connecting hole 42 of the first connecting piece 4.

[0169] The cross beam 502 is made of continuous fiber composite material and is connected with the interior trim mounting structure 503 through the threaded connection between the first connecting piece 4 and the second connecting piece 5, thereby achieving the installation of the roof trim. In addition, the cross beam 502 has high structural strength and light weight, thereby improving the structural strength of the vehicle 1000 and lightening the vehicle 1000.

[0170] In some embodiments of the present application, the first structural member 2 is in a plate-like structure or a long strip-like structure.

[0171] For example, as shown in FIG. 1, the first structural member 2 can be a beam 502 in a long strip-like structure of a vehicle body 500. Figure 13 Figure 12 As shown in FIG. 2, the first structural member 2 can also be a first plate 61 in a plate-like structure of a heat exchange plate 6 of a battery device 100 of a vehicle 1000.

[0172] As long as the required structural strength is adapted to the structural strength of the first structural member 2, and the second structural member 3 needs to be connected to the first structural member 2, the structural assembly composed of the first structural member 2, the second structural member 3, the first connecting member 4 and the second connecting member 5 provided by the embodiments of the present application can be applied, which has high structural strength and is conducive to improving the structural strength of the vehicle 1000.

[0173] In this way, the first structural member 2 can be applied to many parts of the vehicle 1000, and has a wide range of applications. Thus, the structural strength of the vehicle 1000 is further improved.

[0174] In some embodiments of the present application, the thermoplastic resin matrix comprises a polyamide unit, and the ratio of the number of carbons on the main carbon chain of the polyamide unit to the number of amide groups is not less than 8.

[0175] In some embodiments, the ratio of the number of carbons on the main carbon chain of the polyamide unit to the number of amide groups is 8-15, i.e., the ratio of the number of carbons on the main carbon chain of the polyamide unit to the number of amide groups can be 8, 9, 10, 11, 12, 13, 14, 15, etc.

[0176] It can be understood that the ratio of the number of carbons on the main carbon chain of the polyamide unit to the number of amide groups is not less than 8, which means that the ratio of the number of carbons on the main carbon chain of all polyamide units of the thermoplastic resin matrix to the number of amide groups is not less than 8.

[0177] In this way, by controlling the ratio of the number of carbons to the number of amide groups in a single structural unit of the thermoplastic resin matrix, the number of CHx groups (methyl and methylene) in a single polyamide unit can be controlled, which can ensure the strength of the single-layer continuous fiber composite material layer while ensuring the breaking elongation of the single-layer continuous fiber composite material layer, so that the continuous fiber composite material layer can meet the requirements of high strength and high breaking elongation.

[0178] In some embodiments of the present application, the polyamide comprises any one or a combination of PA610, PA11, PA12, PA1212, PA1012 and PA1313.

[0179] ​In some embodiments of the present application, the continuous fibers include one of organic fibers, inorganic fibers.

[0180] The organic fibers have higher strength, better elasticity and flexibility. The inorganic fibers have higher strength and modulus. By matching one or more of the organic fibers, inorganic fibers with the thermoplastic resin, the strength of the single-layer continuous fiber composite material layer can be improved, thereby improving the strength of the first structural member 2.

[0181] In some embodiments of the present application, the inorganic fibers include any one of glass fibers, aramid fibers or boron fibers.

[0182] In some embodiments of the present application, the organic fibers include any one of aramid fibers, ultra-high molecular weight polyethylene fibers.

[0183] In some embodiments of the present application, the weight fraction of the continuous fibers is 60-80, the weight fraction of the thermoplastic resin matrix is 20-40, and the sum of the weight fraction of the continuous fibers and the weight fraction of the thermoplastic resin matrix is 100.

[0184] By controlling the content of the continuous fibers and the thermoplastic resin matrix within a reasonable range, the probability of the continuous fibers leaking out due to the continuous fibers being too high and the resin matrix being too low can be reduced, and the probability of the composite material not being strong enough due to the continuous fibers being too low and the resin matrix being too high can also be reduced, i.e., the content of the continuous fibers and the content of the thermoplastic resin matrix are balanced, so that the performance of the composite material is suitable for making the first structural member 2.

[0185] In some embodiments, the continuous fiber composite material layer includes 68-75 parts by weight of continuous fibers and 25-32 parts by weight of thermoplastic resin matrix. In this way, the content of the continuous fibers and the content of the thermoplastic resin matrix are further limited to a more balanced state.

[0186] In some embodiments of the present application, the first connecting member 4 is embedded in the first structural member 2 by molding.

[0187] The parts made of continuous fiber composite material are usually formed by molding. The present embodiment utilizes the characteristic that the thermoplastic resin in the continuous fiber composite material is in a molten state during molding, and by embedding the first connecting member 4 in the mold, the first connecting member 4 is wrapped in the thermoplastic resin during molding, so that the first connecting member 4 is embedded in the first structural member 2. In this way, the embedding of the first connecting member 4 is completed at the same time as the molding of the first structural member 2, which is high in production efficiency and high in connection strength.

[0188] For example, the continuous fiber composite material layers arranged in multiple layers are combined to form a continuous fiber composite plate, the continuous fiber composite plate is formed into the first structural member 2 by molding, and the first connecting member 4 is simultaneously molded into the first structural member 2 in the process of molding. Specifically, as shown in Figure 15 the first connecting member 4 is placed in the mold together with the continuous fiber composite plate 2003 before molding, the upper surface of the lower mold 2001 has a groove 2004, the continuous fiber composite plate 2003 is placed on the upper surface of the lower mold 2001 and covers the groove 2004, the first connecting member 4 is connected to the upper mold 2002, the continuous fiber composite plate 2003 is baked at a high temperature before molding, and the resin therein is in a semi-melted state that can flow, then the upper mold 2002 is lowered to be engaged with the lower mold 2001, and molding is performed, in the early stage of molding, the part of the continuous fiber composite plate 2003 corresponding to the groove 2004 is deformed toward the groove 2004 due to the pressing of the first connecting member 4, forming a structure as shown in Figure 16 the groove 47 and the axial limiting groove 44 of the first connecting member 4 under the molding pressure, thereby forming a molded structure as shown in Figure 17 at this time, the continuous fiber composite plate 2003 before molding is deformed into the first structural member 2 in which the first connecting member 4 is embedded.

[0189] Next, specific examples of some embodiments of the present application will be described with reference to the accompanying drawings.

[0190] As a specific example, a structural assembly (consisting of the first structural member 2, the second structural member 3, the first connecting member 4, and the second connecting member 5) is provided, the first structural member 2 uses the characteristic that the continuous fiber composite material is in a semi-melted state when molded, by embedding a specially shaped nut (the first connecting member 4) in the mold. The nut is wrapped in the thermoplastic resin at the same time of molding, so that the nut is embedded in the plate (the first structural member 2). The nut has the following characteristics: the overall outer contour has a certain slope on both sides, which is beneficial to the stretching deformation of the plate to fit the contour of the nut during molding; the top end of the nut (the first part 45) is rounded in shape, which is not easy to cut the continuous fibers in the continuous fiber composite material during molding; the nut has at least one barb structure (the second part 46) to reduce the probability of axial disengagement of the nut; at least a part of the cross section of the nut is not circular, thereby reducing the probability of rotation of the nut during tightening of the bolt (the second connecting member 5).

[0191] In some embodiments, the elastic modulus of each continuous fiber composite layer is 34 GPa to 40 GPa, the tensile strength of each continuous fiber composite layer is 918 MPa to 1300 MPa, and the elongation at break of each continuous fiber composite layer is 3% to 6%. That is, 34 GPa≤elastic modulus of the continuous fiber composite layer≤40 GPa, 918 MPa≤tensile strength of the continuous fiber composite layer≤1300 MPa, and 3%≤elongation at break of the continuous fiber composite layer≤6%. In this way, the range of the elastic modulus and the tensile strength of the continuous fiber composite layer is further defined.

[0192] It should be noted that the elongation at break refers to the percentage of the elongation of the original gauge length after the sample is stretched to break to the original gauge length.

[0193] As for the detection means of the elongation at break of the continuous fiber composite layer, a part of the first structural member 2 can be cut as a sample, the continuous fiber composite layers of the sample can be separated, and the sample can be made into a sample for the single-layer continuous fiber composite layer, and the sample can be placed on a tensile testing machine for testing.

[0194] The width of the sample is usually 50 mm, and the gauge length of the sample is 100 mm. A tensile force is applied to the sample at a constant speed until the sample breaks. The maximum elongation at break is recorded, and the ratio to the gauge length is calculated to obtain the elongation at break. The test environment conditions: the test should be carried out under standard environmental conditions, usually room temperature (23±2℃), relative humidity 50%±5%.

[0195] In some embodiments of the present application, the continuous fibers are continuous glass fibers. The thermoplastic resin matrix is polyamide. The composite material formed by the combination of the continuous glass fibers and the polyamide has the characteristics of high strength and high modulus of the continuous glass fibers and the good processability and recyclability of the polyamide, which helps to improve the tensile strength and elongation at break of the single-layer continuous fiber composite layer, and the polyamide matrix is easy to shape.

[0196] The components and experimental data of some embodiments are introduced below in combination with Table 1.

[0197] Table 1 is experimental data of the continuous fiber composite layer including glass fibers and a polyamide resin matrix provided in embodiments of the present application

[0198]

[0199] Compatibilizer: high-melt-index P0E grafted maleic anhydride (Kao Chemicals Co., Ltd.).

[0200] Glass fiber refers to continuous glass fiber, and the grade is E7DR17-1200-352C (China Jushi Co., Ltd.).

[0201] Antioxidant: RIANOX 1098 (i.e. Antioxidant 1098), PEP-36. (Tianjin Li'an Long New Material Co., Ltd.).

[0202] PA610, i.e. polyamide 610; PA11, i.e. polyamide 11; PA12, i.e. polyamide 12. (Toray Industries, Inc.).

[0203] The ingredients and experimental data of some comparative examples are introduced below in combination with Table 2.

[0204] Table 2 is the ingredients and experimental data of some comparative examples

[0205]

[0206] PA6, i.e. polyamide 6; PA66, i.e. polyamide 66. (Hangzhou Hechuan New Material Co., Ltd.).

[0207] It should be noted that the comparative examples refer to test data that do not meet the requirements of the embodiments of the present application.

[0208] In combination with Table 1 and Table 2, the molecular formula of PA610 is (-NH-(CH2)5-CO-) n In the single structural unit of PA610, the number of carbons in the main carbon chain is 8, and the number of amide groups is 1, i.e. the ratio of the number of carbons in the main carbon chain to the number of amide groups is 8.

[0209] The molecular formula of PA11 is H(NH(CH2) 10 CO) n OH, in the single structural unit of PA11, the number of carbons in the main carbon chain is 11, and the number of amide groups is 1, i.e. the ratio of the number of carbons in the main carbon chain to the number of amide groups in the single structural unit of PA11 is 11.

[0210] The molecular formula of PA12 is -(NH-(CH2) 11 -CO) n - in the single structural unit of PA12, the number of carbons in the main carbon chain is 12, and the number of amide groups is 1, i.e. the ratio of the number of carbons in the main carbon chain to the number of amide groups in the single structural unit of PA12 is 12.

[0211] The molecular formula of PA6 is (-NH-(CH2)5-CO) n In the single structural unit of PA6, the number of carbons in the main carbon chain is 6, and the number of amide groups is 1, i.e. the ratio of the number of carbons in the main carbon chain to the number of amide groups in the single structural unit of PA6 is 6.

[0212] The molecular formula of PA66 is (-NH(CH2)6-NHCO(CH2)4CO) n In the single structural unit of PA66, the number of carbons in the main carbon chain is 12, and the number of amide groups is 2. The ratio of the number of carbons in the main carbon chain to the number of amide groups in the single structural unit of PA66 is 6.

[0213] It should be noted that the polyamide is a polymer polymerized by a plurality of repeating structural units, and two structural units are polymerized by -CO- and -NH-. Therefore, when calculating the number of amide groups, -CO- and -NH2- in a single structural unit are counted as one amide group, and whether -CO- and -NH2- are connected together in a single structural unit is not concerned.

[0214] It should be noted that the resin matrix in Comparative Example 6 includes 23 parts by weight of PA6 and 12 parts by weight of PA610. The number of carbons in the main carbon chain and the number of amide groups of PA6 are 6. Therefore, mixing 23 parts by weight of PA6 and 12 parts by weight of PA610 will result in a ratio of the number of carbons in the main carbon chain to the number of amide groups being less than 8 on average.

[0215] The resin matrix in Comparative Example 7 includes 23 parts by weight of PA66 and 12 parts by weight of PA610. The number of carbons in the main carbon chain and the number of amide groups of PA66 are 6. Mixing 23 parts by weight of PA66 and 12 parts by weight of PA610 will result in a ratio of the number of carbons in the main carbon chain to the number of amide groups being less than 8 on average.

[0216] The polyamides in Examples 1 to 9 use one or more combinations of PA610, PA11, and PA12, all of which meet the requirement that the ratio of the number of carbons in the main carbon chain to the number of amide groups in the polyamide unit is in the range of 8 to 15. The weight parts of the thermoplastic resin matrix in Examples 1 to 9 are 33, 33, 33, 32, 28, 23, 33, 33, and 33, respectively, i.e., the weight parts of the thermoplastic resin matrix are between 20 and 40.

[0217] The weight parts of the glass fibers in Examples 1 to 9 are 65, 65, 65, 65, 70, 75, 65, 65, and 65, respectively, i.e., the weight parts of the continuous fibers are between 60 and 80.

[0218] The weight parts of the compatibilizer in Examples 1 to 9 are all 2, and the weight parts of the antioxidant are all 0.3 (0.1 part by weight of RIANOX 1098 and 0.2 part by weight of PEP-36).

[0219] In Embodiment 1 to Embodiment 9, the minimum value of the tensile strength of the formed continuous fiber composite layer is 1005 MPa, and the maximum value of the tensile strength is 1370 MPa. The minimum value of the elastic modulus of the formed continuous fiber composite layer is 39.5 GPa, and the maximum value is 43.5 GPa. The minimum value of the elongation at break of the formed continuous fiber composite layer is 3.12%, and the maximum value is 4.0%. The minimum value of the water absorption of the formed continuous fiber composite layer is 0.19%, and the maximum value is 0.3%. All meet the performance requirements of the continuous fiber composite layer in the embodiments of the present application.

[0220] It can be found from Embodiment 1, Embodiment 2 and Embodiment 3 that the higher the ratio of the number of carbons on the main carbon chain of a single structural unit to the number of amide groups, the higher the elongation at break, and the lower the water absorption.

[0221] It can be found from Embodiment 4, Embodiment 5 and Embodiment 6 that the higher the glass fiber content, the higher the tensile strength, but the lower the elongation at break. By comparing Embodiment 1 with Comparative Example 1, Embodiment 2 with Comparative Example 2, and Embodiment 7 with Comparative Example 7, it can be found that when the ratio of the number of carbons on the main carbon chain of a single structural unit to the number of amide groups is less than 8, the elongation at break of the continuous fiber composite layer is less than 3%, and the water absorption is also greater than 0.3%.

[0222] By comparing Embodiment 5, Embodiment 6 and Comparative Example 3, it can be found that when the weight part of glass fiber exceeds 80, the elongation at break of the continuous fiber composite layer is less than 3% and the performance requirements of the continuous fiber composite layer are not met.

[0223] By comparing Embodiment 1 and Comparative Example 5, it can be found that when the weight part of polyamide exceeds 40, the elongation at break of the continuous fiber composite layer is less than 3%, the water absorption is greater than 0.3%, and the tensile strength is reduced. The performance requirements of the continuous fiber composite layer are not met.

[0224] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A vehicle characterized by comprising: The application relates to a first structure, a first connecting member, a second structure and a second connecting member. The first structure comprises a body part and a secondary curing part connected to the body part, the body part comprises a plurality of layers of continuous fiber composite material, each layer of the continuous fiber composite material comprises continuous fibers and a thermoplastic resin matrix, the thermoplastic resin matrix connects the continuous fibers, and the secondary curing part is formed by curing of the thermoplastic resin. At least part of the first connecting member is embedded in the secondary curing part and avoids the continuous fibers. The second structure and the first structure are connected through the first connecting member and the second connecting member.

2. The vehicle of claim 1, wherein The first connecting member comprises a first surface exposed relative to the first structure, the first surface is provided with a connecting hole, and the connecting hole is connected with the second connecting member.

3. The vehicle of claim 2, wherein, The first connecting member further comprises an arc-shaped surface opposite to the first surface along the axial direction of the connecting hole, and the arc-shaped surface is embedded in the secondary curing part.

4. The vehicle of claim 3, wherein, The distance between the first surface and the arc-shaped surface in the axial direction of the connecting hole gradually decreases in the direction away from the central axis of the connecting hole along the radial direction of the connecting hole.

5. The vehicle of claim 3, wherein, Part of the outer circumferential surface of the first connecting member is recessed towards the connecting hole to form at least one axial limiting groove, the groove wall of the axial limiting groove comprises first and second side walls opposite along the axial direction of the connecting hole, and part of the secondary curing part is filled in the limiting groove.

6. The vehicle of claim 4, wherein, Part of the outer circumferential surface of the first connecting member is recessed towards the connecting hole to form at least one axial limiting groove, the groove wall of the axial limiting groove comprises first and second side walls opposite along the axial direction of the connecting hole, and part of the secondary curing part is filled in the limiting groove.

7. The vehicle of claim 5, wherein, The axial limiting groove is an annular groove surrounding the connecting hole.

8. The vehicle of claim 5, wherein, The outer circumferential surface of the first connecting member is provided with two or more axial limiting grooves distributed at intervals around the connecting hole.

9. The vehicle of claim 7, wherein, The outer circumferential surface of the first connecting member is provided with two or more axial limiting grooves distributed at intervals around the connecting hole.

10. The vehicle of any one of claims 5-9, characterized in that, The first side wall is closer to the first surface relative to the second side wall, the part of the first connecting member on the side away from the second side wall is a first part, and the part of the first connecting member on the side away from the first side wall is a second part. The orthographic projection of the second part falls within the orthographic projection of the first part along the axial projection of the connecting hole.

11. The vehicle of any one of claims 5-9, wherein, The first connecting member is further provided with at least one groove, the groove penetrates through the axial limiting groove along the axial direction of the connecting hole from the arc-shaped surface, and part of the secondary curing part is filled in the groove.

12. The vehicle of claim 11, wherein, The groove penetrates through the outer circumferential surface of the first connecting member.

13. The vehicle of any one of claims 2-9 and 12, characterized by, The hole wall of the connecting hole is provided with an internal thread, the second structure is provided with a through hole, The second connecting member comprises a head part and a connecting column connected to the head part at one end, the outer circumferential surface of the connecting column is provided with an external thread, and the other end of the connecting column penetrates through the through hole and is threadedly connected to the connecting hole.

14. The vehicle of any one of claims 2-9 and 12, characterized by, At least one of all cross sections of a surface of the first connecting member in contact with the secondary curing portion is non-circular, wherein the cross section is perpendicular to an axial direction of the connecting hole.

15. The vehicle of any one of claims 1-9 and 12, characterized by, The vehicle includes a battery device for providing electric energy, the battery device including a battery case and at least one battery cell, the battery case including a case body and a case cover covering the case body, a receiving space for receiving the battery cell being formed between the case cover and the case body, The case cover includes the first structural member, and the case body includes the second structural member.

16. The vehicle of any one of claims 1-9 and 12, characterized by, The vehicle includes a battery device for providing electric energy, the battery device including a heat exchange plate and at least one battery cell, the heat exchange plate including a first plate and a second plate stacked, a flow channel for a heat exchange medium being formed between the first plate and the second plate, the battery cell being located on a side of the second plate away from the first plate, The first plate includes the first structural member, and the second plate includes the second structural member.

17. The vehicle of claim 16, wherein, The battery device further includes a battery case, the battery case including a case body and a case cover, the case body including a bottom plate and a frame surrounding the bottom plate, a receiving groove being formed between the bottom plate and the frame, an end edge of the frame away from the bottom plate surrounding a receiving notch, the case cover covering the receiving notch to form a receiving space for receiving the battery cell, The bottom plate includes the heat exchange plate.

18. The vehicle of any one of claims 1-9, 12, and 17, characterized by, The vehicle includes a vehicle body, the vehicle body including two A-pillars and a cross beam connected between the two A-pillars, the cross beam being connected with an interior trim mounting structure, the interior trim mounting structure being used for mounting a roof trim, the roof trim including a roof handle and / or a roof lamp, The cross beam includes the first structural member, and the interior trim mounting structure includes the second structural member.

19. The vehicle of any one of claims 1-9, 12, and 17, characterized by, The continuous fiber is one of an organic fiber and an inorganic fiber.

20. The vehicle of claim 19, wherein, The inorganic fiber is any one of a glass fiber, an aramid fiber, or a boron fiber; and / or the organic fiber is any one of an aromatic polyamide fiber or an ultrahigh molecular weight polyethylene fiber.

21. The vehicle of any one of claims 1-9, 12, 17, and 20, characterized by, The first structural member is in a plate structure or a long strip structure.

22. The vehicle of any one of claims 1-9, 12, 17, and 20, characterized by, The first connecting member is embedded in the first structural member by a molding manner.

23. The vehicle of any one of claims 1-9, 12, 17, and 20, characterized by, The vehicle includes a chassis and a vehicle body arranged on the chassis, the vehicle body and the chassis jointly surrounding a passenger compartment of the vehicle.

24. The vehicle of claim 23, wherein, The vehicle includes a battery device, a battery case of the battery device forming a floor of the passenger compartment.

25. The vehicle of claim 23, wherein, The chassis and the vehicle body are detachably connected.

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