Quick-change support and electric vehicle comprising same

Abstract

The utility model discloses a quick-change support and an electric vehicle comprising the same, and belongs to the technical field of electric vehicles. The quick-change support is used for being installed on a beam of the electric vehicle to fix a battery pack and comprises a locking support and a fixing mechanism. The fixing mechanism is arranged on the vehicle beam in a striding mode, and the two ends of the fixing mechanism are connected with the two ends of the locking support respectively. The locking support is a main structure connected with a battery pack, the fixing mechanism is arranged on a vehicle beam in a striding mode, the position of the fixing mechanism is fixed, the two ends of the fixing mechanism are connected with the locking support respectively, so that the fixing mechanism and the locking support form an integral structure, and the installation stability of the locking support is improved through the fixing mechanism. Due to the fact that the locking support is restrained by the fixing mechanism, even if the bicycle beam is twisted, the portions, located on the two sides of the bicycle beam, of the quick-changing support can be kept consistent; and the later accurate installation of the battery pack is facilitated. And by arranging the fixing mechanism, the overall supporting strength of the quick-change support is also improved, and the risk of breakage of the quick-change support is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to a quick-change bracket and an electric vehicle comprising the same. Background Art

[0002] Currently in the field of electric vehicles, battery packs are usually installed in electric vehicles through quick-change brackets, so the installation of the quick-change brackets needs to be fixed to match the fixed and precise installation of the battery pack.

[0003] In the prior art, the quick-change brackets are independently installed on both sides of the beam of the electric vehicle, resulting in poor connection strength between the quick-change brackets and the beam; and because the beam is prone to twisting, the consistency of the quick-change brackets on both sides of the beam is also relatively poor. The poor connection strength of the quick-change brackets, low installation stability, and poor consistency will further affect the fixation and precise installation of the battery pack. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the quick-change bracket is independently installed on both sides of the electric vehicle beam, resulting in poor installation stability and consistency of the quick-change bracket, and to provide a quick-change bracket and an electric vehicle including the same.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A quick-change bracket is used to be installed on the beam of an electric vehicle to fix a battery pack, and the quick-change bracket includes a locking bracket and a fixing mechanism; wherein the fixing mechanism is straddled on the beam, and both ends of the fixing mechanism are respectively connected to the locking bracket.

[0007] In this solution, the locking bracket is the main structure of the quick-change bracket that connects the battery pack. The fixing mechanism is set across the vehicle beam. The position of the fixing mechanism is fixed. The two ends of the fixing mechanism are respectively connected to the locking bracket, so that the fixing mechanism and the locking bracket form an integral structure. The fixing mechanism can improve the installation stability of the locking bracket, or the quick-change bracket as a whole. Because the locking bracket is restrained by the fixing mechanism, even if the vehicle beam twists, the parts of the quick-change bracket on both sides of the vehicle beam can maintain consistency, which facilitates the precise installation of the battery pack in the later stage. In addition, the setting of the fixing mechanism also increases the overall support strength of the quick-change bracket and reduces the risk of the quick-change bracket breaking.

[0008] Preferably, the locking bracket includes a front cantilever beam and a rear cantilever beam; the fixing mechanism is arranged between the front cantilever beam and the rear cantilever beam to fix the relative position between the front cantilever beam and the rear cantilever beam;

[0009] Preferably, two ends of the fixing mechanism are respectively connected to the front cantilever beam and the rear cantilever beam;

[0010] and / or, the fixing mechanism is connected to the vehicle beam along the width direction of the electric vehicle;

[0011] and / or, the front cantilever beam and the rear cantilever beam are respectively connected to the vehicle beam;

[0012] and / or, the front cantilever beam and the rear cantilever beam both extend along the width direction of the electric vehicle;

[0013] And / or, the front cantilever beam and the rear cantilever beam are arranged on the vehicle beam at intervals along the length direction of the electric vehicle.

[0014] In the present solution, the front cantilever beam and the rear cantilever beam at both ends of the locking bracket are the main structure connecting the battery pack. By arranging a fixing mechanism between the front cantilever beam and the rear cantilever beam, or further connecting the two ends of the fixing mechanism to the front cantilever beam and the rear cantilever beam respectively, so that the installation position of the front cantilever beam and the rear cantilever beam is restrained by the fixing mechanism, the relative position between the front cantilever beam and the rear cantilever beam is fixed, thereby improving the installation accuracy of the front cantilever beam and the rear cantilever beam, and facilitating the precise installation of the battery pack at a later stage.

[0015] The front cantilever beam and the rear cantilever beam are arranged to extend along the width direction of the electric vehicle and are respectively connected to the vehicle beam, thereby fixing the front cantilever beam and the rear cantilever beam; further, the front cantilever beam and the rear cantilever beam are arranged on the vehicle beam at intervals along the length direction of the electric vehicle, which meets the assembly requirements, facilitates the later installation of the battery pack between the front cantilever beam and the rear cantilever beam, and realizes the side replacement of the battery pack.

[0016] In addition, a fixing mechanism is provided to be connected to the vehicle beam along the width direction of the electric vehicle to increase the connection stability of the fixing mechanism.

[0017] Preferably, the fixing mechanism comprises a connecting portion, which is connected between the front cantilever beam and the rear cantilever beam and is used to define the relative position between the front cantilever beam and the rear cantilever beam;

[0018] Preferably, the fixing mechanism further includes a reinforcing portion, which is connected between the connecting portion and the vehicle beam and is used to reinforce the frame structure formed by the connecting portion and the front cantilever beam and the rear cantilever beam.

[0019] In this solution, the connecting part in the fixing mechanism is a specific structure used to limit the relative position between the front cantilever beam and the rear cantilever beam. Connecting the connecting part between the front cantilever beam and the rear cantilever beam can achieve the position limitation between the front cantilever beam and the rear cantilever beam in the simplest way.

[0020] In addition, a reinforcing portion connected between the connecting portion and the vehicle beam may be provided in the fixing mechanism to reinforce the frame structure formed by the connecting portion and the front cantilever beam and the rear cantilever beam, so that the fixing mechanism is not easily deformed.

[0021] Preferably, the connecting portion comprises at least two connecting beams, and the at least two connecting beams are arranged at intervals in the extension direction of the front cantilever beam or the rear cantilever beam, and two ends of any one of the connecting beams are respectively connected to the front cantilever beam and the rear cantilever beam;

[0022] Preferably, the reinforcement portion comprises at least one reinforcement beam, an extension direction of the reinforcement beam forms an angle with an extension direction of any one of the connecting beams, and at least one end of the reinforcement beam is connected to one of the connecting beams.

[0023] In this solution, at least two connecting beams are arranged and connected between the front cantilever beam and the rear cantilever beam, so that the front cantilever beam and the rear cantilever beam are restrained in multiple places in the extension direction, the possibility of relative displacement between the front cantilever beam and the rear cantilever beam is further reduced, and the overall structural strength of the quick-change bracket can be improved.

[0024] In addition, the extension direction of the reinforcement beam and the connecting beam has an included angle and at least one end is connected to a connecting beam, providing force support for the connecting beam in a direction non-parallel to the connecting beam, further improving the overall strength of the fixing mechanism.

[0025] Preferably, the length of the connecting portion between the front cantilever beam and the rear cantilever beam is adjustable.

[0026] In this solution, the length of the connecting beam between the front cantilever beam and the rear cantilever beam is adjustable, so that the fixing mechanism can make adaptive adjustments according to the setting positions of the front cantilever beam and the rear cantilever beam during installation, thereby eliminating installation errors of the front cantilever beam and the rear cantilever beam during assembly.

[0027] Preferably, the at least two connecting beams include two first connecting beams, and the two first connecting beams are respectively arranged on both sides of the vehicle beam;

[0028] Preferably, the first connecting beam is connected to the edge positions of the front cantilever beam and the rear cantilever beam in the extending direction;

[0029] And / or, two ends of the reinforcement beam are respectively connected to the middle positions of the two first connection beams.

[0030] In this solution, two first connecting beams are respectively arranged on both sides of the vehicle beam, and the connecting beams are connected to the front cantilever beam and the rear cantilever beam to form a frame structure, which improves the structural stability of the quick-change bracket; further, the first connecting beam is connected to the edge position of the front cantilever beam and the rear cantilever beam in the extension direction, so that the installation position between the ends of the front cantilever beam and the rear cantilever beam is restricted by the first connecting beam, avoiding the installation position between the ends of the front cantilever beam or the rear cantilever beam from being unable to be fixed due to torsion. In addition, the two ends of the reinforcement beam are respectively connected to the middle position of the two first connecting beams, so that the reinforcement beam also supports the two first connecting beams, reduces the risk of the first connecting beam breaking, and increases the structural strength of the fixing mechanism.

[0031] Preferably, the reinforcement beam is connected to the vehicle beam via a first connecting member;

[0032] And / or, the reinforcement beam is connected to at least two connection beams arranged on both sides of the vehicle beam through a second connection member;

[0033] And / or, the front cantilever beam and the rear cantilever beam are arranged across the two vehicle beams arranged in parallel along the length direction of the electric vehicle, and the reinforcement beam is respectively connected to the two vehicle beams through a first connecting member;

[0034] And / or, the extension direction of the reinforcement beam is perpendicular to the extension direction of the two vehicle beams;

[0035] And / or, the extending direction of the connecting beam is parallel to the extending direction of the two vehicle beams.

[0036] In this solution, the reinforcement beam can be connected to the vehicle beam through the first connecting piece, so that the quick-change bracket can be connected to the vehicle beam not only through the front cantilever beam and the rear cantilever beam, but also through the reinforcement beam. The connection points between the quick-change bracket and the vehicle beam are increased, making the connection between the quick-change bracket and the vehicle beam more secure, and the structural stability of the quick-change bracket itself is also improved.

[0037] In addition, the reinforcement beam is connected to the connecting beams arranged on both sides of the vehicle beam through the second connecting member, thereby supporting the connecting beams on both sides of the vehicle beam; when the reinforcement beam is perpendicular to the extension direction of the two vehicle beams, and further, the extension direction of the connecting beam is parallel to the extension direction of the two vehicle beams, the connection force between the reinforcement beam and the connecting beam is more reasonably and balanced, so as to enhance the structural strength of the fixing mechanism.

[0038] Preferably, along the extension direction of the reinforcement beam, the reinforcement beam comprises a first part and a second part which are independent of each other;

[0039] The first part and the second part are respectively located on both sides of the two vehicle beams;

[0040] One end of the first part or the second part close to the vehicle beam is connected to one of the vehicle beams through the first connecting member;

[0041] The other end of the first part or the second part away from the vehicle beam is connected to the connecting beam on the same side through the second connecting member.

[0042] In the present solution, through the above-mentioned structural form, the reinforcement beam can be divided into two sections and respectively arranged between a vehicle beam and a connecting beam located on one side of the vehicle beam, which can ensure that the two ends of the reinforcement beam are stably connected. Compared with the two ends of the reinforcement beam being respectively connected to the connecting beams on both sides of the vehicle beam, the reinforcement beam part between the two vehicle beams can be omitted by adopting this structural form, thereby shortening the overall setting length of the reinforcement beam, reducing the dead weight of the reinforcement beam, saving materials and reducing costs.

[0043] Preferably, the fixing mechanism further comprises at least one first connecting member, and the reinforcement beam is connected to the vehicle beam via the first connecting member;

[0044] The first connecting member includes a bearing plate and a switching member, and the switching member includes a first side plate and a second side plate forming a corner;

[0045] The bearing plate is connected to a side of the first side plate facing away from the corner, and the second side plate is used to be connected to the vehicle beam;

[0046] And / or, a clamping portion is provided on a side of the bearing plate facing away from the first side plate, and a clamping groove is provided on the clamping portion, and the clamping groove is used to clamp the reinforcing beam.

[0047] In the present solution, by providing a clamping portion with a clamping groove on the bearing plate, the first connecting member can be clamped with the reinforcement beam; since the clamping portion is located on the bearing plate, the bearing plate is fitted with the first side plate, and the first side plate has a corner with the second side plate, that is, the first side plate and the second side plate have different extension directions, and thus the bearing plate and the second side plate have different extension directions, thereby, the reinforcement beam located on the bearing plate can be conveniently connected to the vehicle beam of the electric vehicle through the second side plate in the switching member.

[0048] Preferably, the fixing mechanism further comprises at least one second connecting member, and the reinforcing beam is connected to the connecting beam via the second connecting member;

[0049] The reinforcement beam comprises a base, and the second connecting member is fixedly connected to an end surface of the base facing one end of the connecting beam;

[0050] The second connecting member comprises a first connecting surface facing the connecting beam, and the area of ​​the first connecting surface is larger than the surface area of ​​the end surface of the base body facing one end of the connecting beam;

[0051] The reinforcement beam is connected to the connection beam via the first connection surface.

[0052] In this solution, since the area of ​​the first connecting surface in the second connecting member is larger than the surface area of ​​the end face of the base, compared with the direct connection of the end face of the base of the reinforcement beam with the connecting beam, the connection area between the reinforcement beam and the connecting beam is increased by connecting the first connecting surface in the second connecting member with the connecting beam, making the connection between the reinforcement beam and the connecting beam more firm and stable and not easy to break.

[0053] Preferably, the second connecting member further comprises a second connecting surface arranged perpendicularly to the first connecting surface;

[0054] The end surface of the base body facing one end of the connecting beam is connected to the first connecting surface, and the side wall of the base body is connected to the second connecting surface;

[0055] A hollow portion is provided on the second connecting surface;

[0056] And / or, the second connecting surface includes at least one oblique edge, one end of the oblique edge is connected to the end of the first connecting surface, the other end of the oblique edge is connected to the base, and the position where the oblique edge is connected to the base is spaced a predetermined distance from one end of the base facing the connecting beam.

[0057] In this solution, the connection between the second connector and the substrate is made more secure by setting the substrate to be connected to the first connecting surface and the second connecting surface of the second connector respectively. A hollow portion is provided on the second connecting surface to reduce the weight of the second connector as much as possible while ensuring that the second connector is firmly connected to the substrate, thereby reducing the weight of the entire quick-change bracket. In addition, the second connecting surface may also be provided with a hypotenuse, one end of which is connected to the first connecting surface and the other end is connected to the substrate, so that a triangular structure is formed between the substrate, the first connecting surface and the hypotenuse, thereby enhancing the structural stability of the second connector; further, when the second connecting surface is provided with a hypotenuse on each side of the substrate, the second connecting surface will form a trapezoidal structure, the force is more balanced, and the structural stability of the second connector is better.

[0058] Preferably, the fixing mechanism further comprises at least one third connecting member, and the connecting beam comprises a body;

[0059] The third connecting member comprises an adjusting portion, and the main body is slidably sleeved in the adjusting portion along the length direction of the connecting beam;

[0060] The adjusting portion and the main body are each provided with a group of adjusting holes extending along the length direction of the connecting beam, and the adjusting holes on the adjusting portion and the adjusting holes on the main body are connected by bolts.

[0061] In this solution, the position of the main body in the adjustment part is changed through the above-mentioned structural form, and bolts are installed in the corresponding adjustment holes on the adjustment part and the main body to adjust the length of the connecting beam. The structure is simple and easy to operate.

[0062] Preferably, the connecting beam is connected to the front cantilever beam or the rear cantilever beam through the third connecting member;

[0063] The third connecting member further comprises a fitting portion, wherein the fitting portion is connected to a side of the adjusting portion away from the main body;

[0064] The bonding portion includes two bonding plates forming an angle, and the two bonding plates are used to be connected to two adjacent side walls of the front cantilever beam or the rear cantilever beam.

[0065] In this solution, through the above-mentioned structural form, the third connecting member can not only cooperate with the main body to adjust the length of the connecting beam, but also realize the connection between the connecting beam and the front cantilever beam or the rear cantilever beam. Furthermore, since the fitting portion includes two fitting plates forming an angle, the connecting beam can be connected to the two side walls of the front cantilever beam or the rear cantilever beam, thereby increasing the connection area and making the connection between the connecting beam and the front cantilever beam or the rear cantilever beam more firmly.

[0066] Preferably, the connecting beam is detachably connected to the front cantilever beam and the rear cantilever beam by bolts;

[0067] And / or, the reinforcement beam and the connection beam are detachably connected by bolts;

[0068] And / or, the quick-change bracket is also provided with a mounting seat, and the mounting seat is used to place the vehicle-end equipment of the electric vehicle.

[0069] In this solution, the detachable connection between the connecting beam and the front cantilever beam and the rear cantilever beam, and between the reinforcing beam and the connecting beam enables the quick-change bracket to be installed in a modular and flexible manner, and is also convenient for disassembly, maintenance and replacement. In addition, by providing a mounting seat on the quick-change bracket, the vehicle-end equipment of the electric vehicle can be placed on the mounting seat, making the equipment layout in the electric vehicle more compact and improving the utilization rate of the installation space in the electric vehicle.

[0070] An electric vehicle comprises the quick-change bracket as described above.

[0071] The positive and progressive effects of the utility model are:

[0072] In the present invention, the locking bracket is the main structure of the quick-change bracket for connecting the battery pack. The fixing mechanism is arranged across the vehicle beam. The position of the fixing mechanism is fixed. The two ends of the fixing mechanism are respectively connected to the locking bracket, so that the fixing mechanism and the locking bracket form an integral structure, so as to improve the installation stability of the locking bracket, or the quick-change bracket as a whole through the fixing mechanism. Since the locking bracket is restrained by the fixing mechanism, even if the vehicle beam twists, the parts of the quick-change bracket on both sides of the vehicle beam can maintain consistency, so as to facilitate the precise installation of the battery pack in the later stage. In addition, the setting of the fixing mechanism also increases the overall support strength of the quick-change bracket and reduces the risk of the quick-change bracket breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 This is a schematic diagram of the top structure of the quick-change bracket, battery pack and vehicle beam in a preferred embodiment of the utility model; wherein the mounting seat is not shown.

[0074] Figure 2 This is a schematic diagram of the three-dimensional structure of the quick-change bracket, battery pack and vehicle beam in a preferred embodiment of the utility model; wherein the mounting seat is not shown.

[0075] Figure 3 It is a schematic diagram of the three-dimensional structure of the quick-change bracket in a preferred embodiment of the utility model.

[0076] Figure 4 It is a schematic diagram of the top view of the fixing mechanism in a preferred embodiment of the utility model.

[0077] Figure 5 This is an enlarged schematic diagram of the local structure of the quick-change bracket in a preferred embodiment of the utility model (I).

[0078] Figure 6 It is a schematic diagram of the three-dimensional structure of the first connecting member in a preferred embodiment of the utility model.

[0079] Figure 7 This is an enlarged schematic diagram of the local structure of the quick-change bracket in a preferred embodiment of the utility model (II).

[0080] Figure 8 It is a schematic diagram of the three-dimensional structure of the second connecting member in a preferred embodiment of the utility model.

[0081] Fig. 9 This is an enlarged schematic diagram of the local structure of the quick-change bracket in a preferred embodiment of the utility model (III).

[0082] Fig.10 It is a schematic diagram of the three-dimensional structure of the third connecting member in a preferred embodiment of the utility model.

[0083] Fig.11 It is a schematic diagram of the top view of the structure of the reinforcement beam in another embodiment of the utility model.

[0084] Description of reference numerals:

[0085] The vehicle beam 100, the battery pack 110, the quick-change bracket 200, the locking bracket 210, the front cantilever beam 211, the rear cantilever beam 212, the fixing mechanism 300, the connecting portion 301, the reinforcing portion 302, the connecting beam 310, the first connecting beam 311, the main body 312, the reinforcing beam 320, the first part 321, the second part 322, the base 330, the first connecting member 400, the bearing plate 410, the clamping portion 411, the clamping groove 412, the reversing member 420, the first side plate 421, the second side plate 422, the second connecting member 500, the first connecting surface 501, the second connecting surface 502, the hollow portion 510, the hypotenuse 520, the third connecting member 600, the adjusting portion 610, the adjusting hole 612, the bolt 613, the fitting portion 620, the fitting plate 621, the mounting seat 622, the length direction X of the electric vehicle, and the width direction Y of the electric vehicle. DETAILED DESCRIPTION

[0086] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0087] The present embodiment provides an electric vehicle, including a beam 100. The beam 100 is one of the main load-bearing structures of the electric vehicle, and usually extends along the length direction X of the electric vehicle, and can also be called a "longitudinal beam". It can be understood that the width direction Y of the electric vehicle refers to a direction perpendicular to the length direction X of the electric vehicle. It should be noted that the length direction X of the electric vehicle is also the driving direction of the electric vehicle, and the width direction Y of the electric vehicle refers to a direction perpendicular to the driving direction of the electric vehicle.

[0088] like Figure 1-Figure 4As shown, the electric vehicle in this embodiment also includes a quick-change bracket 200, which is used to be installed on the beam 100 of the electric vehicle to fix the battery pack 110. The quick-change bracket 200 includes a locking bracket 210 and a fixing mechanism 300; wherein the fixing mechanism 300 is straddled on the beam 100, and both ends of the fixing mechanism 300 are respectively connected to the locking bracket 210. The locking bracket 210 is the main structure of the quick-change bracket 200 that connects the battery pack 110. The fixing mechanism 300 is arranged across the beam 100. The position of the fixing mechanism 300 is fixed. The two ends of the fixing mechanism 300 are respectively connected to the locking bracket 210, so that the fixing mechanism 300 and the locking bracket 210 form an integral structure, so as to improve the installation stability of the locking bracket 210, or the quick-change bracket 200 as a whole through the fixing mechanism 300; and because the locking bracket 210 is restrained by the fixing mechanism 300, even if the beam 100 is twisted, the parts of the quick-change bracket 200 located on both sides of the beam 100 can also maintain consistency; thereby facilitating the precise installation of the battery pack 110 in the later stage. In addition, the setting of the fixing mechanism 300 also increases the overall support strength of the quick-change bracket 200 and reduces the risk of the quick-change bracket 200 breaking.

[0089] Furthermore, the two ends of the fixing mechanism 300 are respectively connected to the two ends of the locking bracket 210. In this embodiment, the battery pack 110 is connected between the two ends of the locking bracket 210. By arranging the fixing mechanism 300 between the two ends of the locking bracket 210, the two ends of the fixing mechanism 300 are respectively connected to the two ends of the locking bracket 210, and the distance between the two ends of the locking bracket 210 is limited by the fixing mechanism 300, that is, the installation position of the locking bracket 210 is restrained by the fixing mechanism 300, thereby improving the installation accuracy of the locking bracket 210.

[0090] In this embodiment, the structure of the locking bracket 210 determines that the two ends of the fixing mechanism 300 are respectively connected to the front and rear ends of the locking bracket 210. Figure 2 and Figure 3 As shown, the locking bracket 210 includes a front cantilever beam 211 and a rear cantilever beam 212, and the front cantilever beam 211 and the rear cantilever beam 212 are respectively located at the front and rear ends of the locking bracket 210 along the length direction X of the electric vehicle, and the fixing mechanism 300 is arranged between the front cantilever beam 211 and the rear cantilever beam 212 to fix the relative position between the front cantilever beam 211 and the rear cantilever beam 212.

[0091] Furthermore, the two ends of the fixing mechanism 300 are respectively connected to the front cantilever beam 211 and the rear cantilever beam 212 to directly limit the distance between the front cantilever beam 211 and the rear cantilever beam 212. Specifically, the two ends of the fixing mechanism 300 are symmetrically distributed on two opposite sides along the extension direction of the vehicle beam 100, and any end of the fixing mechanism 300 has two connecting ends extending toward the front and rear ends of the locking bracket 210, wherein the two connecting ends are respectively connected to the front cantilever beam 211 and the rear cantilever beam 212.

[0092] Further, the front cantilever beam 211 and the rear cantilever beam 212 are respectively connected to the vehicle beam 100. In this embodiment, in order to achieve the fixation of the front cantilever beam 211 and the rear cantilever beam 212, the front cantilever beam 211 and the rear cantilever beam 212 are respectively connected to the vehicle beam 100.

[0093] In the above embodiment, the fixing mechanism 300 is connected between the front cantilever beam 211 and the rear cantilever beam 212 so that the installation positions of the front cantilever beam 211 and the rear cantilever beam 212 are restrained by the fixing mechanism 300, and the relative positions between the front cantilever beam 211 and the rear cantilever beam 212 are fixed, thereby improving the installation accuracy of the front cantilever beam 211 and the rear cantilever beam 212, and facilitating the precise installation of the battery pack 110 between the front cantilever beam 211 and the rear cantilever beam 212 at a later time.

[0094] In other alternative embodiments, depending on the specific structure of the locking bracket 210, the two ends of the fixing mechanism 300 can be connected to the left and right ends of the locking bracket 210 respectively, or the two ends of the fixing mechanism 300 can be connected to the front and back ends and the left and right ends of the locking bracket 210 respectively.

[0095] Further, the front cantilever beam 211 and the rear cantilever beam 212 are arranged on the beam 100 at intervals along the length direction X of the electric vehicle, and the front cantilever beam 211 and the rear cantilever beam 212 both extend along the width direction Y of the electric vehicle. The fixing mechanism 300 is connected to the beam 100 along the width direction Y of the electric vehicle. In this embodiment, the front cantilever beam 211 and the rear cantilever beam 212 both extend along the width direction Y of the electric vehicle, and the front cantilever beam 211 and the rear cantilever beam 212 are arranged on the beam 100 at intervals along the length direction X of the electric vehicle to meet the assembly requirements and facilitate the installation of the battery pack 110 between the front cantilever beam 211 and the rear cantilever beam 212.

[0096] Furthermore, the front cantilever beam 211 and the rear cantilever beam 212 are also straddled on the vehicle beam 100, so that the vehicle beam 100 divides the front cantilever beam 211 and the rear cantilever beam 212 into two sides in the width direction Y of the electric vehicle, and two or two groups of battery packs 110 can be respectively installed on both sides of the vehicle beam 100 to realize side battery replacement.

[0097] Furthermore, the fixing mechanism 300 is connected to the vehicle beam 100 along the width direction Y of the electric vehicle, which not only increases the connection points of the fixing mechanism 300, but also the extension direction of the fixing mechanism 300 is parallel to the front cantilever beam 211 and the rear cantilever beam 212, and the connection of the fixing mechanism 300 is more stable.

[0098] like Figure 1-Figure 4 As shown, the fixing mechanism 300 includes a connecting portion 301 and a reinforcing portion 302. The connecting portion 301 is connected between the front cantilever beam 211 and the rear cantilever beam 212, and is used to specifically define the relative position between the front cantilever beam 211 and the rear cantilever beam 212. The reinforcing portion 302 is connected between the connecting portion 301 and the vehicle beam 100, and is used to reinforce the frame structure formed by the connecting portion 301 and the front cantilever beam 211 and the rear cantilever beam 212. Among them, the connecting portion 301 extends along the length direction X of the electric vehicle, and the connecting portion 301 is connected to the front cantilever beam 211 and the rear cantilever beam 212 at both ends of the length direction X of the electric vehicle. The reinforcing portion 302 is connected between the connecting portion 301 and the vehicle beam 100 in a direction non-parallel to the connecting portion 301. In this embodiment, by connecting the connecting portion 301 between the front cantilever beam 211 and the rear cantilever beam 212, the position between the front cantilever beam 211 and the rear cantilever beam 212 can be limited in the simplest way; the provision of the reinforcement portion 302 makes the fixing mechanism 300 less likely to deform.

[0099] Furthermore, the connecting portion 301 includes at least two connecting beams 310; the at least two connecting beams 310 are arranged at intervals in the extension direction of the front cantilever beam 211 or the rear cantilever beam 212, and the two ends of any connecting beam 310 are respectively connected to the front cantilever beam 211 and the rear cantilever beam 212. In this embodiment, by arranging and connecting at least two connecting beams 310 between the front cantilever beam 211 and the rear cantilever beam 212, the front cantilever beam 211 and the rear cantilever beam 212 are restrained at multiple locations in the extension direction, the possibility of relative displacement between the front cantilever beam 211 and the rear cantilever beam 212 is further reduced, and the overall structural strength of the quick-change bracket 200 can be improved.

[0100] Specifically, at least two connecting beams 310 include two first connecting beams 311, which are respectively arranged on both sides of the vehicle beam 100, and the first connecting beams 311 are connected to the edge positions in the extension direction of the front cantilever beam 211 and the rear cantilever beam 212. Thus, the connecting beams 310 and the front cantilever beam 211 and the rear cantilever beam 212 are connected to form a frame structure, which improves the structural stability of the quick-change bracket 200; further, the first connecting beam 311 is connected to the edge positions in the extension direction of the front cantilever beam 211 and the rear cantilever beam 212, so that the installation position between the ends of the front cantilever beam 211 and the rear cantilever beam 212 is restricted by the first connecting beam 311, thereby preventing the installation position between the ends of the front cantilever beam 211 or the rear cantilever beam 212 from being unable to be fixed due to torsion.

[0101] Further, the reinforcement part 302 includes at least one reinforcement beam 320, the extension direction of the reinforcement beam 320 and the extension direction of any connecting beam 310 have an angle, and at least one end of the reinforcement beam 320 is connected to one connecting beam 310. Thus, the reinforcement beam 320 provides force support for the connecting beam 310 in a direction non-parallel to the connecting beam 310, further improving the overall strength of the fixing mechanism 300. Further, the two ends of the reinforcement beam 320 are respectively connected to the middle position of the two first connecting beams 311, so that both ends of the reinforcement beam 320 are connected to one connecting beam 310 and play a supporting role for the two first connecting beams 311, reducing the risk of the first connecting beam 311 breaking, and increasing the structural strength of the fixing mechanism 300. In other optional embodiments, the two ends of the reinforcement beam 320 can also be connected to other positions between the two first connecting beams 311.

[0102] In this embodiment, two beams 100 are arranged in parallel along the length direction X of the electric vehicle, and the front cantilever beam 211 and the rear cantilever beam 212 are arranged across the two beams 100; the extending direction of the connecting beam 310 is parallel to the extending direction of the two beams 100, and the extending direction of the reinforcing beam 320 is perpendicular to the extending direction of the two beams 100. Therefore, the connecting force between the reinforcing beam 320 and the connecting beam 310 is more reasonably balanced, so as to enhance the structural strength of the fixing mechanism 300.

[0103] In this embodiment, for the sake of structural simplicity, the connecting beams 310 only include two first connecting beams 311; in other optional embodiments, a plurality of other connecting beams 310 may be provided between the two first connecting beams 311. In addition, the extending direction of the reinforcing beam 320 and the extending direction of the two vehicle beams 100 may also be at an angle other than perpendicular.

[0104] The fixing mechanism 300 includes at least one first connecting member 400, and the reinforcement beam 320 is connected to the vehicle beam 100 through the first connecting member 400. Further, in this embodiment, the number of the reinforcement beam 320 is one, and the fixing mechanism 300 includes two first connecting members 400, and the reinforcement beam 320 is respectively connected to two vehicle beams 100 through the two first connecting members 400. In this embodiment, the connection between the reinforcement beam 320 and the vehicle beam 100 is realized through the first connecting member 400, so that the quick-change bracket 200 can be connected to the vehicle beam 100 not only through the front cantilever beam 211 and the rear cantilever beam 212, but also through the reinforcement beam 320. The connection points between the quick-change bracket 200 and the vehicle beam 100 are increased, so that the connection between the quick-change bracket 200 and the vehicle beam 100 is more firmly connected, and the structural stability of the quick-change bracket 200 itself is also improved.

[0105] like Figure 2 , Figure 5 and Figure 6 As shown, the first connecting member 400 includes a bearing plate 410 and a reversing member 420, and the reversing member 420 includes a first side plate 421 and a second side plate 422 forming a corner; the bearing plate 410 is fitted and connected to a side of the first side plate 421 away from the corner, and the second side plate 422 is used to connect with the vehicle beam 100. A clamping portion 411 is provided on a side of the bearing plate 410 away from the first side plate 421, and a clamping groove 412 is provided on the clamping portion 411, and the clamping groove 412 is used to clamp the reinforcement beam 320. In this embodiment, by providing a clamping portion 411 with a clamping groove 412 on the bearing plate 410, the first connecting member 400 can be clamped with the reinforcement beam 320; since the clamping portion 411 is located on the bearing plate 410, the bearing plate 410 is in contact with the first side plate 421, and the first side plate 421 has a corner with the second side plate 422, that is, the first side plate 421 and the second side plate 422 have different extension directions, and thus the bearing plate 410 and the second side plate 422 have different extension directions, thereby the reinforcement beam 320 located on the bearing plate 410 can be conveniently connected to the vehicle beam 100 of the electric vehicle through the second side plate 422 in the reversing member 420.

[0106] In other optional implementations, the first connecting member 400 may also have other structural forms so that the reinforcement beam 320 can be connected to the vehicle beam 100 .

[0107] The fixing mechanism 300 also includes at least one second connecting member 500, and the reinforcement beam 320 is connected to the connecting beam 310 through the second connecting member 500; further, since the two connecting beams 310 are arranged on both sides of the vehicle beam 100 in this embodiment, the reinforcement beam 320 is connected to at least two connecting beams 310 arranged on both sides of the vehicle beam 100 through the second connecting member 500, so that the reinforcement beam 320 supports the connecting beams 310 on both sides of the vehicle beam 100.

[0108] like Figure 2 , Figure 7 and Figure 8 As shown, the reinforcement beam 320 includes a base 330, and the second connecting member 500 is fixedly connected to the end surface of the base 330 facing the connecting beam 310; the second connecting member 500 includes a first connecting surface 501 facing the connecting beam 310, and the area of ​​the first connecting surface 501 is larger than the surface area of ​​the end surface of the base 330 facing the connecting beam 310; the reinforcement beam 320 is connected to the connecting beam 310 through the first connecting surface 501. Since the area of ​​the first connecting surface 501 in the second connecting member 500 is larger than the surface area of ​​the end surface of the base 330, compared with the end surface of the base 330 of the reinforcement beam 320 directly connected to the connecting beam 310, the connection area between the reinforcement beam 320 and the connecting beam 310 is increased through the connection of the first connecting surface 501 in the second connecting member 500 with the connecting beam 310, so that the connection between the reinforcement beam 320 and the connecting beam 310 is more firm and stable, and not easy to break.

[0109] Furthermore, the second connecting member 500 also includes a second connecting surface 502 vertically arranged with the first connecting surface 501; the end surface of the base 330 facing one end of the connecting beam 310 is connected with the first connecting surface 501, and the side wall of the base 330 is connected with the second connecting surface 502; and a hollow portion 510 is provided on the second connecting surface 502. In this embodiment, by providing the base 330 to be connected with the first connecting surface 501 and the second connecting surface 502 in the second connecting member 500 respectively, the connection between the second connecting member 500 and the base 330 is made more secure. The hollow portion 510 is provided on the second connecting surface 502, and the self-weight of the second connecting member 500 is reduced as much as possible on the basis of ensuring that the second connecting member 500 is firmly connected with the base 330, thereby reducing the weight of the entire quick-change bracket 200.

[0110] Further, the second connection surface 502 includes at least one hypotenuse 520, one end of the hypotenuse 520 is connected to the end of the first connection surface 501, and the other end of the hypotenuse 520 is connected to the base 330, and the position where the hypotenuse 520 is connected to the base 330 is separated from the end of the base 330 facing the connecting beam 310 by a predetermined distance. In this embodiment, by connecting one end of the hypotenuse 520 of the second connection surface 502 to the first connection surface 501 and the other end to the base 330, a triangular structure is formed between the base 330, the first connection surface 501, and the hypotenuse 520, thereby enhancing the structural stability of the second connection member 500; further, when the second connection surface 502 is provided with a hypotenuse 520 on both sides of the base 330, the second connection surface 502 will form a trapezoidal structure, the force is more balanced, and the structural stability of the second connection member 500 is better.

[0111] like Figure 8As shown, in this embodiment, hollow portions are respectively provided on both sides of the trapezoidal second connecting surface 502 to form a hypotenuse 520 and a hollow portion 510 at the same time.

[0112] like Figure 2 As shown, in this embodiment, both ends of the reinforcement beam 320 are respectively connected to the two connection beams 310; in other optional embodiments, such as Fig.11 As shown, along the extension direction of the reinforcement beam 320, the reinforcement beam 320 may include a first part 321 and a second part 322 that are independent of each other; the first part 321 and the second part 322 are respectively located on both sides of the two vehicle beams 100, and one end of the first part 321 or the second part 322 close to the vehicle beam 100 is connected to one of the vehicle beams 100 through the first connecting member 400; the other end of the first part 321 or the second part 322 away from the vehicle beam 100 is connected to the connecting beam 310 on the same side through the second connecting member 500.

[0113] Through the above-mentioned structural form, the reinforcement beam 320 can be divided into two sections and respectively arranged between a vehicle beam 100 and the connecting beam 310 located on one side of the vehicle beam 100, which can ensure that the two ends of the reinforcement beam 320 are stably connected. Compared with the two ends of the reinforcement beam 320 being respectively connected to the connecting beams 310 on both sides of the vehicle beam 100, the reinforcement beam 320 part between the two vehicle beams 100 can be omitted by adopting this structural form, thereby shortening the overall setting length of the reinforcement beam 320, reducing the dead weight of the reinforcement beam 320, saving materials, and reducing costs.

[0114] Furthermore, the length of the connecting portion 301 between the front cantilever beam 211 and the rear cantilever beam 212 is adjustable. In this embodiment, by setting the length of the connecting beam 310 between the front cantilever beam 211 and the rear cantilever beam 212 to be adjustable, the fixing mechanism 300 can make adaptive adjustments according to the setting positions of the front cantilever beam 211 and the rear cantilever beam 212 during installation, thereby eliminating the installation error of the front cantilever beam 211 and the rear cantilever beam 212 during assembly.

[0115] Specifically, Figure 2 , Fig. 9 and Fig.10As shown, the fixing mechanism 300 further includes at least one third connecting member 600, and the connecting beam 310 includes a body 312; the third connecting member 600 includes an adjusting portion 610, and the body 312 is slidably sleeved in the adjusting portion 610 along the length direction of the connecting beam 310; the adjusting portion 610 and the body 312 are each provided with a group of adjusting holes 612 extending along the length direction of the connecting beam 310, and the adjusting holes 612 on the adjusting portion 610 and the adjusting holes 612 on the body 312 are connected by bolts 613. Thus, the length of the connecting beam 310 can be adjusted by changing the position of the body 312 in the adjusting portion 610 and installing the bolts 613 in the corresponding adjusting holes 612 on the adjusting portion 610 and the body 312, and the structure is simple and easy to operate.

[0116] Furthermore, the connecting beam 310 is connected to the front cantilever beam 211 or the rear cantilever beam 212 through the third connecting member 600; the third connecting member 600 also includes a fitting portion 620, which is connected to the side of the adjusting portion 610 away from the body 312; the fitting portion 620 includes two fitting plates 621 forming an angle, and the two fitting plates 621 are used to connect with two adjacent side walls of the front cantilever beam 211 or the rear cantilever beam 212. Therefore, the third connecting member 600 can not only cooperate with the body 312 to adjust the length of the connecting beam 310, but also realize the connection between the connecting beam 310 and the front cantilever beam 211 or the rear cantilever beam 212. Furthermore, since the bonding portion 620 includes two bonding plates 621 forming an angle, the connecting beam 310 can be connected to the two side walls of the front cantilever beam 211 or the rear cantilever beam 212, thereby increasing the connection area and making the connection between the connecting beam 310 and the front cantilever beam 211 or the rear cantilever beam 212 more secure.

[0117] Furthermore, in this embodiment, the connecting beam 310 is detachably connected to the front cantilever beam 211 and the rear cantilever beam 212 via bolts 613, and the reinforcing beam 320 is detachably connected to the connecting beam 310 via bolts 613, so that the quick-change bracket 200 can be modularly and flexibly installed, and is also easy to disassemble, repair and replace.

[0118] Furthermore, if Figure 3 and Figure 4 As shown, the quick-change bracket 200 is also provided with a mounting seat 622, and the mounting seat 622 is used to place the vehicle-end equipment of the electric vehicle, so as to make the equipment layout in the electric vehicle more compact and improve the utilization rate of the installation space in the electric vehicle.

[0119] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A quick-change bracket, used for mounting on a beam of an electric vehicle to fix a battery pack, characterized in that: The quick-change bracket includes a locking bracket and a fixing mechanism; Wherein, the fixing mechanism is straddled on the vehicle beam, and two ends of the fixing mechanism are respectively connected to the locking bracket.

2. The quick-change bracket according to claim 1, characterized in that: The locking bracket includes a front cantilever beam and a rear cantilever beam; the fixing mechanism is arranged between the front cantilever beam and the rear cantilever beam to fix the relative position between the front cantilever beam and the rear cantilever beam.

3. The quick-change bracket according to claim 2, characterized in that: Two ends of the fixing mechanism are respectively connected to the front cantilever beam and the rear cantilever beam; and / or, the fixing mechanism is connected to the vehicle beam along the width direction of the electric vehicle; and / or, the front cantilever beam and the rear cantilever beam are respectively connected to the vehicle beam; and / or, the front cantilever beam and the rear cantilever beam both extend along the width direction of the electric vehicle; And / or, the front cantilever beam and the rear cantilever beam are arranged on the vehicle beam at intervals along the length direction of the electric vehicle.

4. The quick-change bracket according to claim 2, characterized in that: The fixing mechanism comprises a connecting portion, which is connected between the front cantilever beam and the rear cantilever beam and is used to limit the relative position between the front cantilever beam and the rear cantilever beam.

5. The quick-change bracket according to claim 4, characterized in that: The fixing mechanism also includes a reinforcing portion, which is connected between the connecting portion and the vehicle beam and is used to reinforce a frame structure formed by the connecting portion, the front cantilever beam and the rear cantilever beam.

6. The quick-change bracket according to claim 5, characterized in that: The connecting portion includes at least two connecting beams, and the at least two connecting beams are arranged at intervals in the extension direction of the front cantilever beam or the rear cantilever beam, and two ends of any one of the connecting beams are respectively connected to the front cantilever beam and the rear cantilever beam.

7. The quick-change bracket according to claim 6, characterized in that: The reinforcement portion includes at least one reinforcement beam, an extension direction of the reinforcement beam and an extension direction of any one of the connecting beams form an included angle, and at least one end of the reinforcement beam is connected to one of the connecting beams.

8. The quick-change bracket according to claim 7, characterized in that: The length of the connecting portion between the front cantilever beam and the rear cantilever beam is adjustable.

9. The quick-change bracket according to claim 7, characterized in that: The at least two connecting beams include two first connecting beams, and the two first connecting beams are respectively arranged on both sides of the vehicle beam.

10. The quick-change bracket according to claim 9, characterized in that: The first connecting beam is connected to the edge positions of the front cantilever beam and the rear cantilever beam in the extending direction; And / or, two ends of the reinforcement beam are respectively connected to the middle positions of the two first connection beams.

11. The quick-change bracket according to claim 7, characterized in that: The reinforcement beam is connected to the vehicle beam via a first connecting member; And / or, the reinforcement beam is connected to at least two connection beams arranged on both sides of the vehicle beam through a second connection member; And / or, the front cantilever beam and the rear cantilever beam are arranged across the two vehicle beams arranged in parallel along the length direction of the electric vehicle, and the reinforcement beam is respectively connected to the two vehicle beams through a first connecting member; And / or, the extension direction of the reinforcement beam is perpendicular to the extension direction of the two vehicle beams; And / or, the extending direction of the connecting beam is parallel to the extending direction of the two vehicle beams.

12. The quick-change bracket according to claim 11, characterized in that: Along the extension direction of the reinforcement beam, the reinforcement beam comprises a first part and a second part which are independent of each other; The first part and the second part are respectively located on both sides of the two vehicle beams; One end of the first part or the second part close to the vehicle beam is connected to one of the vehicle beams through the first connecting member; The other end of the first part or the second part away from the vehicle beam is connected to the connecting beam on the same side through the second connecting member.

13. The quick-change bracket according to claim 7, characterized in that: The fixing mechanism further comprises at least one first connecting member, and the reinforcing beam is connected to the vehicle beam via the first connecting member; The first connecting member includes a bearing plate and a switching member, and the switching member includes a first side plate and a second side plate forming a corner; The bearing plate is connected to a side of the first side plate facing away from the corner, and the second side plate is used to be connected to the vehicle beam; And / or, a clamping portion is provided on a side of the bearing plate facing away from the first side plate, and a clamping groove is provided on the clamping portion, and the clamping groove is used to clamp the reinforcing beam.

14. The quick-change bracket according to claim 7, characterized in that: The fixing mechanism further comprises at least one second connecting member, and the reinforcing beam is connected to the connecting beam via the second connecting member; The reinforcement beam comprises a base, and the second connecting member is fixedly connected to an end surface of the base facing one end of the connecting beam; The second connecting member comprises a first connecting surface facing the connecting beam, and the area of ​​the first connecting surface is larger than the surface area of ​​the end surface of the base body facing one end of the connecting beam; The reinforcement beam is connected to the connection beam via the first connection surface.

15. The quick-change bracket according to claim 14, characterized in that: The second connecting member further includes a second connecting surface arranged perpendicularly to the first connecting surface; The end surface of the base body facing one end of the connecting beam is connected to the first connecting surface, and the side wall of the base body is connected to the second connecting surface; A hollow portion is provided on the second connecting surface; And / or, the second connecting surface includes at least one oblique edge, one end of the oblique edge is connected to the end of the first connecting surface, the other end of the oblique edge is connected to the base, and the position where the oblique edge is connected to the base is spaced a predetermined distance from one end of the base facing the connecting beam.

16. The quick-change bracket according to claim 8, characterized in that: The fixing mechanism further comprises at least one third connecting member, and the connecting beam comprises a body; The third connecting member comprises an adjusting portion, and the main body is slidably sleeved in the adjusting portion along the length direction of the connecting beam; The adjusting portion and the main body are each provided with a group of adjusting holes extending along the length direction of the connecting beam, and the adjusting holes on the adjusting portion and the adjusting holes on the main body are connected by bolts.

17. The quick-change bracket according to claim 16, characterized in that: The connecting beam is connected to the front cantilever beam or the rear cantilever beam through the third connecting member; The third connecting member further comprises a fitting portion, wherein the fitting portion is connected to a side of the adjusting portion away from the main body; The bonding portion includes two bonding plates forming an angle, and the two bonding plates are used to be connected to two adjacent side walls of the front cantilever beam or the rear cantilever beam.

18. The quick-change bracket according to any one of claims 7 to 17, characterized in that: The connecting beam is detachably connected to the front cantilever beam and the rear cantilever beam by bolts; And / or, the reinforcement beam and the connection beam are detachably connected by bolts; And / or, the quick-change bracket is also provided with a mounting seat, and the mounting seat is used to place the vehicle-end equipment of the electric vehicle.

19. An electric vehicle, characterized in that: It comprises a quick-change bracket as described in any one of claims 1-18.

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