Quick-change bracket and electric vehicle including the same

Abstract

The present invention discloses a quick-change bracket and an electric vehicle including the same, wherein the quick-change bracket is used to install a battery box on the electric vehicle, the electric vehicle includes two oppositely arranged beams, the beams extend along the length direction of the electric vehicle, the quick-change bracket includes an adapter bracket and a bracket body, the adapter bracket is connected to the outer sides of the two different beams, the adapter bracket includes a first mounting body and a second mounting body, the first mounting body is connected to the outer side of the beam, and the second mounting body is connected to the bracket body. The adapter bracket is installed on the outer side of the beam, and the position of the bracket body relative to the beam can be adjusted according to the spacing, size and even battery structure of the beam of the electric vehicle to adapt to different models of electric vehicles, so that the overall layout is more flexible, and the adapter bracket is easy to process, which can shorten the construction period, improve the compatibility of the quick-change bracket, and can also meet the assembly accuracy requirements between the bracket body and the beam.

Description

Technical Field

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

[0002] The quick-change bracket is a frame structure and includes two longitudinal beams and two cross beams. However, for quick-change battery packs, different models of vehicles have different beam spacing and structures, while the structural dimensions of the quick-change bracket are relatively fixed, which means that the quick-change bracket cannot meet the installation requirements of different models. It is necessary to make a matching quick-change bracket separately, resulting in high production costs and poor compatibility of the quick-change bracket.

[0003] In addition, in the prior art, longitudinal beams and cross beams are usually made of sheet metal and have relatively limited strength. Taking the longitudinal beam as an example, the surface of the longitudinal beam close to the bottom of the electric vehicle is the main part connected to the electric vehicle. In order to ensure that the longitudinal beam is not easily damaged or deformed due to excessive force after the quick-change bracket is connected to the electric vehicle with the battery, it is necessary to set or weld more reinforcing structures on the longitudinal beam to strengthen the strength of the longitudinal beam, which leads to a relatively long processing cycle of the longitudinal beam. At the same time, since more reinforcing structures need to be welded, there will be more welding seams on the longitudinal beam, which will cause the longitudinal beam to deform and result in poor dimensional accuracy of the longitudinal beam, which may lead to the failure to meet the assembly accuracy requirements between the quick-change bracket and the battery. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the quick-change bracket cannot meet the installation requirements of different vehicle models and leads to poor compatibility, and to provide a quick-change bracket and an electric vehicle comprising the same.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A quick-change bracket is used to install a battery box on an electric vehicle, the electric vehicle includes two oppositely arranged vehicle beams, the vehicle beams extend along the length direction of the electric vehicle, the quick-change bracket includes an adapter bracket and a bracket body, the adapter bracket is connected to the outer sides of the two different vehicle beams, the adapter bracket includes a first mounting body and a second mounting body, the first mounting body is connected to the outer sides of the vehicle beams, and the second mounting body is connected to the bracket body.

[0007] In the present technical solution, the above-mentioned structural form is adopted, and the adapter bracket is installed on the outside of the vehicle beam. The position of the bracket body relative to the vehicle beam can be adjusted according to the spacing, size and even battery structure of the vehicle beam of the electric vehicle to adapt to different models of electric vehicles, making the overall layout more flexible. In addition, the adapter bracket is easy to process, which can shorten the construction period, improve the compatibility of the quick-change bracket, and can also meet the assembly accuracy requirements between the bracket body and the vehicle beam.

[0008] Preferably, the first installation body includes a first cavity, the second installation body includes a second cavity, and the first cavity and the second cavity extend along the length direction of the electric vehicle;

[0009] The side of the first cavity facing the vehicle beam is a first mounting surface, the side of the second cavity facing the bracket body is a second mounting surface, and the first mounting surface and the second mounting surface are arranged parallel to or perpendicular to each other.

[0010] In the present technical solution, the above-mentioned structural form is adopted, and the first cavity and the second cavity are respectively located on the first installation body and the second installation body extending in the same direction. The setting of the cavity improves the strength of the first installation body and the second installation body respectively, and at the same time reduces the weight of the adapter bracket itself.

[0011] Preferably, the vehicle beam is provided with a first mounting hole extending therethrough, the first mounting surface is provided with a second mounting hole matching the first mounting hole along its extension direction, and a fastener connects the vehicle beam and the first mounting surface through the first mounting hole and the second mounting hole;

[0012] And / or, the bracket body is provided with a third mounting hole extending therethrough, the second mounting surface is provided with a fourth mounting hole matching the third mounting hole, and a fastener connects the bracket body to the second mounting surface through the third mounting hole and the fourth mounting hole.

[0013] In the present technical solution, the above-mentioned structural form is adopted, and the mounting holes are set to realize the bolt connection between the mounting surface and the vehicle beam and the bracket body. The structure is simple, easy to disassemble, and convenient for operators to install and maintain. At the same time, the mounting holes can also be used as weight-reducing holes to reduce the overall weight.

[0014] Preferably, the first cavity comprises first baffles, which are arranged at intervals in a vertical direction or a horizontal direction and extend along a length direction of the electric vehicle to form a plurality of first sub-cavities;

[0015] And / or, the second cavity includes second partitions, which are arranged at intervals in a vertical direction or a horizontal direction and extend along a length direction of the electric vehicle to form a plurality of second sub-cavities.

[0016] In the present technical solution, the above-mentioned structural form is adopted, and the first cavity and the second cavity can be further divided into a plurality of accommodating sub-cavities by arranging the first partition plate and the second partition plate, thereby further improving the strength of the conversion bracket.

[0017] Preferably, the first cavity includes a plurality of first sub-cavities formed by stacking a plurality of profiles; and / or the second cavity includes a plurality of second sub-cavities formed by stacking a plurality of profiles.

[0018] In this technical solution, the above-mentioned structural form is adopted, and the multiple sub-cavities formed by the superposition of profiles do not need additional welding reinforcement structure to meet the strength requirements, thereby achieving a simple structure, easy processing, and shortened construction period on the basis of the structural strength meeting the use requirements. In addition, the dimensional accuracy is high, meeting the assembly accuracy requirements between the bracket body and the vehicle beam.

[0019] Preferably, reinforcing ribs are provided inside at least a portion of the first sub-cavity and the second sub-cavity; and / or, the interior of at least another portion of the first sub-cavity and the second sub-cavity is used for passing cables.

[0020] In this technical solution, the above-mentioned structural form is adopted, and the strength of each sub-cavity is further improved by setting reinforcing ribs to improve the overall strength of the adapter bracket. And the other part of the sub-cavity is used for the cable to pass through. On the one hand, there is no need to set a cable tie or other structure for fixing the wiring harness on the outside of the adapter bracket, thereby reducing the number of parts and assembly time; on the other hand, setting it inside the sub-cavity can protect the cable and avoid cable damage, and at the same time it is conducive to ensuring a reliable electrical connection between the battery-swap vehicle and the battery box.

[0021] Preferably, the reinforcing rib comprises a first mounting plate, the first mounting plate is in contact with the first mounting surface and the second mounting surface, and the vehicle beam and the bracket body are connected to the adapter bracket via the first mounting plate.

[0022] In the technical solution, the above-mentioned structural form is adopted, and the reinforcing ribs not only play a role in structural reinforcement but also play a role in installation. When using a connection method such as a bolt, it is beneficial to increase the contact area between the bolt body and the mounting hole, and it is also beneficial to increase the connection thickness, reduce stress concentration at the mounting hole, and increase the overall service life of the quick-change bracket. In addition, even if a direct welding structure is adopted instead of a bolt connection, it is also beneficial to achieve high-strength structural requirements. Since steel has good plasticity, generally speaking, due to accidental overload or local overload, if sudden rupture and damage occur in advance, but there is a large deformation, remedial measures can also be taken.

[0023] Preferably, the first mounting plate is provided with a plurality of fifth mounting holes or a plurality of sixth mounting holes along its extension direction; wherein the fifth mounting holes are arranged in correspondence with the mounting holes of the vehicle beam and the first mounting surface; and the sixth mounting holes are arranged in correspondence with the mounting holes of the bracket body and the second mounting surface.

[0024] In the present technical solution, the above-mentioned structural form is adopted, and the mounting holes are set, which has a simple structure, is easy to disassemble, and is convenient for operators to install and maintain. The holes are overlapped by plates to increase the connection thickness, thereby further reducing the stress concentration at the mounting holes. At the same time, the mounting holes can also be used as weight-reducing holes to reduce the overall weight.

[0025] Preferably, the reinforcing rib further includes a first folded edge portion, and the first folded edge portion extends from two ends of the mounting plate and fits along the wall surface of the first sub-cavity and / or the second sub-cavity.

[0026] In the present technical solution, the above-mentioned structural form is adopted, and the first folded edge portion increases its force-bearing function while also increasing the contact area with the cavity wall, which is more conducive to force dispersion and improves the strength of the structure and the stability of the connection.

[0027] Preferably, when the first mounting surface and the second mounting surface are parallel to each other, the first mounting surface is bent toward the second mounting surface; or, when the first mounting surface and the second mounting surface are perpendicular, the end surface of the second cavity away from the second mounting surface is bent toward the second mounting surface.

[0028] In the present technical solution, the above-mentioned structural form is adopted. On the basis of ensuring that the structural strength of the second installation body is reliably strengthened, the end face of the second installation body is bent in a direction close to the second installation surface, which can reduce the space occupied by the second installation body in the vertical direction, and is also beneficial to reducing the space occupied by the adapter bracket as a whole in the vertical direction.

[0029] Preferably, the cross-sectional shape of the outer peripheral edge of the adapter bracket obtained by cutting along a direction perpendicular to the length direction of the adapter bracket is trapezoidal.

[0030] In the present technical solution, the above-mentioned structural form is adopted, and the trapezoidal cross-section can reduce the space occupied by the second installation body in the vertical direction, and is also beneficial to reducing the space occupied by the entire adapter bracket in the vertical direction, and reducing the weight.

[0031] Preferably, the bracket body includes two oppositely arranged longitudinal beams, and the longitudinal beams are connected to the second mounting body of the adapter bracket.

[0032] In the present technical solution, the above-mentioned structural form is adopted, and the adapter bracket is installed on the outside of the vehicle beam. The position of the bracket body relative to the vehicle beam can be adjusted according to the layout, size and even battery structure of the electric vehicle to adapt to different models of electric vehicles, making the overall layout more flexible.

[0033] Preferably, the longitudinal beam includes a top plate, a side plate and a bottom plate connected in sequence, the quick-change bracket also includes a second mounting plate, and the side plate is connected to the second mounting body through the second mounting plate.

[0034] In the present technical solution, the above-mentioned structural form is adopted, and the longitudinal beam includes a top plate, side plates and a bottom plate connected in sequence. The structure is simple and the stability is high. The installation space of the top plate, the side plates and the top plate can be fully utilized to improve the space utilization rate. Compared with directly installing the side plates on the outer wall of the vehicle beam, the dimensional accuracy of this solution is higher, which meets the assembly accuracy requirements between the bracket body and the vehicle beam.

[0035] Preferably, the top plate extends upward from an edge of the top plate in a vertical direction to form a second folded edge portion.

[0036] In the present technical solution, the above-mentioned structural form is adopted, and the space behind the folded edge portion can be used to install cables, which has a visually beautifying effect, and also protects the cables to avoid cable damage.

[0037] Preferably, the bottom plate extends upward from an edge of the bottom plate in a vertical direction to form a third folded edge portion.

[0038] In the technical solution, the above-mentioned structural form is adopted. The setting of the folded edge portion not only protects the functional parts installed in the longitudinal beam, but also reduces the entry of foreign matter.

[0039] Preferably, the quick-change bracket also includes two oppositely arranged cross beams and columns, the cross beams extend along the width direction of the electric vehicle, the two cross beams are respectively connected to the two ends between the two longitudinal beams through the columns, and the longitudinal beams, columns and cross beams enclose to form a frame structure.

[0040] In the present technical solution, the above-mentioned structural form is adopted, and the columns can connect the longitudinal beams and cross beams of different heights together. At the same time, the longitudinal beams, columns and cross beams can be enclosed into a rectangular frame structure, which is easy to adapt to the installation space of the electric vehicle.

[0041] The present invention also provides a battery-swap vehicle, comprising a quick-change bracket as described in any one of the above items, and also comprising two relatively arranged vehicle beams, wherein the vehicle beam comprises a top wall portion, a side wall portion and a bottom wall portion; the quick-change bracket comprises an adapter bracket and a bracket body, the adapter bracket is connected to the outer sides of two different vehicle beams, the adapter bracket comprises a first mounting body and a second mounting body, the first mounting body is connected to the outer side of the vehicle beam, and the second mounting body is connected to the bracket body.

[0042] The positive effect of the present invention is that the adapter bracket is installed on the outside of the vehicle beam, and the position of the bracket body relative to the vehicle beam can be adjusted according to the layout, size and even battery structure of the electric vehicle to adapt to different models of electric vehicles, making the overall layout more flexible. In addition, the adapter bracket is easy to process, which can shorten the construction period and meet the assembly accuracy requirements between the bracket body and the vehicle beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of the battery-swap vehicle in Example 1 of the present invention.

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the quick-change bracket in Example 1 of the present invention.

[0045] Figure 3 It is a cross-sectional view of the adapter bracket in Example 1 of the present invention.

[0046] Figure 4 It is a cross-sectional view of the adapter bracket in Example 1 of the present invention.

[0047] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the adapter bracket in Example 1 of the present invention.

[0048] Figure 6 It is a schematic diagram of the three-dimensional structure of the reinforcing rib in Example 1 of the present invention.

[0049] Figure 7 It is a schematic diagram of the three-dimensional structure of the second mounting plate in Example 1 of the present invention.

[0050] Figure 8 It is a schematic diagram of the partial three-dimensional structure of the longitudinal beam in Example 1 of the present invention.

[0051] Description of reference numerals:

[0052] Quick-change bracket 100

[0053] Bracket body 101

[0054] Stringer 11

[0055] Top plate 110

[0056] Side Panel 111

[0057] Bottom plate 112

[0058] Beam 12

[0059] Column 13

[0060] The second folded edge portion 14

[0061] The third folding portion 15

[0062] The third mounting hole 16

[0063] Adapter bracket 102

[0064] The first installation body 20

[0065] First cavity 21

[0066] First partition plate 22

[0067] The first sub-cavity 23

[0068] First mounting surface 24

[0069] Second mounting hole 25

[0070] Second installation body 30

[0071] Second cavity 31

[0072] Second partition 32

[0073] The second sub-cavity 33

[0074] Second mounting surface 34

[0075] Fourth mounting hole 35

[0076] The third cavity 40

[0077] The third partition 41

[0078] The third sub-cavity 42

[0079] Reinforcement 50

[0080] First mounting plate 51

[0081] The first folded edge portion 52

[0082] Fifth mounting hole 53

[0083] Sixth mounting hole 54

[0084] Second mounting plate 60

[0085] Seventh mounting hole 61

[0086] Fourth folding portion 62

[0087] Electric Vehicles 200

[0088] Car beam 201

[0089] Top wall part 202

[0090] Side wall portion 203

[0091] Bottom wall part 204 DETAILED DESCRIPTION

[0092] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0093] Example 1

[0094] like Figures 1 to 8 As shown, this embodiment provides an electric vehicle 200, including commercial vehicles such as heavy trucks and light trucks. The electric vehicle 200 includes a quick-change bracket 100, which is used to install a battery box on the electric vehicle 200. The electric vehicle 200 includes two oppositely arranged vehicle beams 201, and the vehicle beams 201 extend along the length direction of the electric vehicle 200. The quick-change bracket 100 includes an adapter bracket 102 and a bracket body 101. The adapter bracket 102 is connected to the outer sides of two different vehicle beams 201. The adapter bracket 102 includes a first installation body 20 and a second installation body 30. The first installation body 20 is connected to the outer side of the vehicle beam 201, and the second installation body 30 is connected to the bracket body 101.

[0095] With the above-mentioned structural form, the adapter bracket 102 is installed on the outside of the vehicle beam 201. The position of the bracket body 101 relative to the vehicle beam 201 can be adjusted according to the spacing, size and even battery structure of the vehicle beam 201 of the electric vehicle 200 to adapt to different models of electric vehicles 200, making the overall layout more flexible. In addition, the adapter bracket 102 is easy to process, which can shorten the construction period, improve the compatibility of the quick-change bracket 100, and can also meet the assembly accuracy requirements between the bracket body 101 and the vehicle beam 201.

[0096] Specifically, for the beam 201, if Figure 1 As shown, it includes a top wall portion 202, a side wall portion 203 and a bottom wall portion 204 connected in sequence, and the first mounting body 20 is mounted on the side wall portion 203; as for the bracket body 101, it includes two oppositely arranged longitudinal beams 11 and two oppositely arranged cross beams 12 and a column 13, wherein the cross beam 12 extends along the width direction of the electric vehicle 200, and the two cross beams 12 are respectively connected to the two ends between the two longitudinal beams 11 through the column 13, and the longitudinal beam 11, the column 13 and the cross beam 12 are enclosed to form a frame structure, as shown in FIG. Figure 2As shown, the longitudinal beam 11 includes a top plate 110 , a side plate 111 and a bottom plate 112 which are connected in sequence, wherein the side plate 111 is connected to the second mounting body 30 of the adapter bracket 102 to be fixed on the vehicle beam 201 .

[0097] In this embodiment, the first installation body 20 and the second installation body 30 are connected in a detachable manner, such as a bolt connection. The bolt connection has a simple structure and is easy to disassemble, and is convenient for operators to install and repair.

[0098] Specifically, Figure 3 As shown, the first installation body 20 includes a first cavity 21, and the second installation body 30 includes a second cavity 31. The first cavity 21 and the second cavity 31 extend along the length direction of the electric vehicle 200; wherein, the side of the first cavity 21 facing the vehicle beam 201 is the first installation surface 24, and the side of the second cavity 31 facing the bracket body 101 is the second installation surface 34, and the first installation surface 24 and the second installation surface 34 are arranged parallel to each other.

[0099] With the above structure, the first cavity 21 and the second cavity 31 are respectively located on the first installation body 20 and the second installation body 30 extending in the same direction. The arrangement of the cavities respectively improves the strength of the first installation body 20 and the second installation body 30, while reducing the weight of the conversion bracket itself.

[0100] In this embodiment, when the first mounting surface 24 and the second mounting surface 34 are parallel to each other, the first mounting surface 24 is bent toward the direction close to the second mounting surface 34; Figure 3 As shown, the height of the first installation body 20 is higher than the height of the second installation body 30, and the top surface of the second installation body 30 is inclined toward the top surface of the first installation body 20. At this time, the cross-sectional shape of the outer periphery of the adapter bracket 102 obtained by cutting along a direction perpendicular to the length of the adapter bracket 102 is trapezoidal.

[0101] By adopting the above-mentioned structural form, on the basis of ensuring that the structural strength of the second installation body 30 is reliably strengthened, the end face of the second installation body 30 is bent in a direction close to the second installation surface 34, which can reduce the space occupied by the second installation body 30 in the vertical direction, and is also beneficial to reducing the space occupied by the adapter bracket 102 as a whole in the vertical direction.

[0102] It should be noted that in other alternative embodiments, the cross-sectional shape of the outer periphery of the adapter bracket 102 cut perpendicular to the length direction of the adapter bracket 102 can also be a rectangle or a square, that is, the first installation body 20 and the second installation body 30 have the same height. In this case, the strength of the adapter bracket 102 can be further improved, and more area can be used to install other components, but the vehicle weight is also increased. The shape and structure of the adapter bracket 102 can be adaptively adjusted according to actual needs, and no specific limitation is made here.

[0103] In this embodiment, if Figure 2 As shown, the side wall portion 203 of the beam 201 is provided with a first mounting hole (not shown in the figure) that penetrates therethrough, and the first mounting surface 24 is provided with a second mounting hole 25 that matches the first mounting hole along its extension direction, and the bolts connect the side wall portion 203 of the beam 201 and the first mounting surface 24 through the first mounting hole and the second mounting hole 25; as shown in the figure, the bracket body 101 is provided with a third mounting hole 16 that penetrates therethrough, such as Figure 5 As shown, the second mounting surface 34 is provided with a fourth mounting hole 35 matching the third mounting hole 16 , and bolts connect the bracket body 101 to the second mounting surface 34 through the third mounting hole 16 and the fourth mounting hole 35 .

[0104] By adopting the above structure, the bolt connection between the adapter bracket 102, the vehicle beam 201 and the bracket body 101 is realized by setting the mounting holes. The structure is simple, easy to disassemble, and convenient for operators to install and repair. At the same time, the mounting holes can also be used as weight-reducing holes to reduce the overall weight. In this embodiment, the number of mounting holes can be adaptively adjusted according to actual needs, and no specific limitation is made here.

[0105] In this embodiment, if Figure 4 As shown, the first cavity 21 includes a plurality of first partitions 22, and the second cavity 31 includes a plurality of second partitions 32; in addition, in the present embodiment, a third cavity 40 is further included between the first cavity 21 and the second cavity 31, and the third cavity 40 includes a plurality of third partitions 41, wherein the first partitions 22, the second partitions 32 and the third partitions 41 are all arranged at intervals in the vertical direction and extend along the length direction of the electric vehicle 200 to form a plurality of first sub-cavities 23, a plurality of second sub-cavities 33 and a plurality of third sub-cavities 42, respectively.

[0106] With the above structure, the third cavity 40 disposed in the first cavity 21 and the second cavity 31 plays a transition role on the one hand, preventing the connecting piece connected to the vehicle beam 201 and the longitudinal beam 11 from being too long to pass through the vehicle beam 201 or the longitudinal beam 11, and on the other hand, the third cavity 40 increases the thickness of the adapter bracket 102 while also increasing the structural strength. In addition, by providing the first partition 22, the second partition 32 and the third partition 41, the first cavity 21 and the second cavity 31 can be further divided into a plurality of accommodating sub-cavities, further improving the strength of the conversion bracket.

[0107] It should be noted that in other alternative embodiments, the partitions may also be arranged at intervals in the horizontal direction, as long as the strength of the adapter bracket 102 can be enhanced. In addition, there is no specific limitation on the specific number of partitions to be set, and adaptive adjustments can be made according to actual needs.

[0108] In this embodiment, combined with Figure 4 and Figure 6 As shown, a portion of the first sub-cavity 23 and the second sub-cavity 33 is provided with reinforcing ribs 50 ; the other portion is used for passing cables.

[0109] By adopting the above-mentioned structural form, the strength of each sub-cavity is further improved by setting the reinforcing ribs 50 to improve the overall strength of the adapter bracket 102. And the other part of the sub-cavity is used for the cable to pass through. On the one hand, there is no need to set a cable tie or other structure for fixing the wiring harness outside the adapter bracket 102, thereby reducing the number of parts and assembly time; on the other hand, setting it inside the sub-cavity can protect the cable and avoid cable damage, and at the same time it is conducive to ensuring a reliable electrical connection between the battery-swap vehicle and the battery box.

[0110] Specifically, Figure 6 As shown, the reinforcing rib 50 includes a first mounting plate 51 and a first folded edge portion 52, wherein the first mounting plate 51 is in contact with the first mounting surface 24 and the second mounting surface 34, the vehicle beam 201 (side wall portion 203) and the bracket body 101 (side plate 111) are both connected to the adapter bracket 102 through the first mounting plate 51, and the first folded edge portion 52 extends from both ends of the mounting plate along the wall surfaces of the first sub-cavity 23 and the second sub-cavity 33 and is in contact with each other.

[0111] With the above-mentioned structural form, the reinforcing rib 50 not only plays a role in structural reinforcement, but also plays a role in installation. When a connection method such as a bolt is used, it is beneficial to increase the contact area between the bolt body and the mounting hole, and it is also beneficial to increase the connection thickness, reduce stress concentration at the mounting hole, and increase the overall service life of the quick-change bracket 100. In addition, in other alternative embodiments, the use of a direct welding structure is also beneficial to achieving high-strength structural requirements. Since steel has good plasticity, generally speaking, due to accidental overload or local overload, but sudden rupture or deformation occurs in advance, remedial measures can also be taken.

[0112] In this embodiment, if Figure 6 As shown, the first mounting plate 51 connected to the side wall portion 203 of the vehicle beam 201 is provided with a plurality of fifth mounting holes 53 along its extension direction, and the first mounting plate 51 connected to the side wall of the longitudinal beam 11 is provided with a plurality of sixth mounting holes 54 along its extension direction; Figure 2 and Figure 7 As shown, the quick-change bracket 100 also includes a second mounting plate 60, which is arranged on the side of the side plate 111 facing away from the second mounting surface 34, and is provided with a plurality of seventh mounting holes 61. The second mounting plate 60 also includes a fourth folded edge portion 61, which is in contact with the top plate 110 of the longitudinal beam 11.

[0113] Among them, the fifth mounting hole 53 is arranged in alignment with the first mounting hole of the vehicle beam 201 and the second mounting hole 25 of the first mounting surface 24; the sixth mounting hole 54 is arranged in alignment with the third mounting hole 16 of the bracket body 101, the fourth mounting hole 35 of the second mounting surface 34 and the seventh mounting hole 61 of the second mounting plate 60.

[0114] With the above structural form, various mounting plates are stacked between the holes to increase the connection thickness, thereby further reducing stress concentration at the mounting holes.

[0115] In this embodiment, as shown in the figure, the top plate 110 extends upward from its edge in the vertical direction to form a second hem portion 14. The bottom plate 112 extends upward from its edge in the vertical direction to form a third hem portion 15.

[0116] With the above structure, the space behind the first folded edge 52 can be used to install cables, which has a visually beautifying effect and also protects the cables to prevent them from being damaged. The second folded edge 14 protects the functional parts installed in the longitudinal beam 11 and reduces the entry of foreign matter.

[0117] Example 2

[0118] This embodiment provides another battery-swapping vehicle, which is different from the embodiment 1 in that Figure 4As shown, the first mounting surface 24 and the second mounting surface 34 are arranged vertically, for example, the first mounting surface 24 is still connected to the side wall portion 203 of the vehicle 201, and the second mounting surface 34 is connected to the top plate 110 of the longitudinal beam 11. When the first mounting surface 24 and the second mounting surface 34 are perpendicular, similarly, the end surface a of the second cavity 31 away from the second mounting surface 34 is bent toward the direction close to the second mounting surface 34. It can be understood that the end surface a is equivalent to the first mounting surface 24 in Example 1, and the top of the end surface a is inclined toward the top surface of the first mounting body 20. The cross-sectional shape of the outer periphery of the adapter bracket 102 obtained by cutting along a direction perpendicular to the length of the adapter bracket 102 is trapezoidal.

[0119] It should be noted that in other alternative embodiments, the end face a can also be the end point of the second mounting surface 34 away from the first mounting surface 24, and is inclined toward the top surface of the first mounting body 20. At this time, the cross-sectional shape of the outer edge of the adapter bracket 102 obtained by cutting along a direction perpendicular to the length of the adapter bracket 102 is triangular.

[0120] Example 3

[0121] This embodiment provides another battery-swapping vehicle, which is different from Embodiment 1 in that the first cavity 21 and the second cavity 31 include a plurality of first sub-cavities 23 and a plurality of second sub-cavities 33 formed by stacking a plurality of profiles. They are connected to the outside of the first cavity 21 and the second cavity 31 in the form of welding. The multiple sub-cavities formed by stacking profiles do not require additional welding reinforcement structures to meet strength requirements, thereby achieving a simple structure, easy processing, and shortened construction period on the basis of structural strength meeting the use requirements. In addition, the dimensional accuracy is high, meeting the assembly accuracy requirements between the bracket body 101 and the vehicle beam 201.

[0122] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships of the devices or components during normal use, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0123] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A quick-change bracket for mounting a battery box on an electric vehicle, wherein the electric vehicle comprises two oppositely disposed beams, the beams extending along the length direction of the electric vehicle, characterized in that: The quick-change bracket includes an adapter bracket and a bracket body, the adapter bracket is between the vehicle beam and the bracket body, the bracket body is used to accommodate the battery box, the adapter bracket is connected to the outer sides of two different vehicle beams, the adapter bracket includes a first installation body and a second installation body, the first installation body is connected to the outer side of the vehicle beam, and the second installation body is connected to the bracket body; The first mounting body includes a first cavity, the second mounting body includes a second cavity, and the first cavity and the second cavity extend along the length direction of the electric vehicle; The side of the first cavity facing the vehicle beam is a first mounting surface, the side of the second cavity facing the bracket body is a second mounting surface, and the first mounting surface and the second mounting surface are arranged parallel to or perpendicular to each other.

2. The quick-change bracket according to claim 1, characterized in that: The vehicle beam is provided with a first mounting hole extending therethrough, the first mounting surface is provided with a second mounting hole matching the first mounting hole along its extending direction, and a fastener connects the vehicle beam and the first mounting surface through the first mounting hole and the second mounting hole; And / or, the bracket body is provided with a third mounting hole extending therethrough, the second mounting surface is provided with a fourth mounting hole matching the third mounting hole, and a fastener connects the bracket body to the second mounting surface through the third mounting hole and the fourth mounting hole.

3. The quick-change bracket according to claim 1, characterized in that: The first cavity includes first baffles, which are arranged at intervals in a vertical direction or a horizontal direction and extend along a length direction of the electric vehicle to form a plurality of first sub-cavities; And / or, the second cavity includes second partitions, which are arranged at intervals in a vertical direction or a horizontal direction and extend along a length direction of the electric vehicle to form a plurality of second sub-cavities.

4. The quick-change bracket according to claim 1, characterized in that: The first cavity includes a plurality of first sub-cavities formed by stacking a plurality of profiles; And / or, the second cavity includes a plurality of second sub-cavities formed by stacking a plurality of profiles.

5. The quick-change bracket according to claim 3 or 4, characterized in that: At least a portion of the first sub-cavity and the second sub-cavity is provided with reinforcing ribs inside; And / or, the interior of at least another part of the first sub-cavity and the second sub-cavity is used for passing cables.

6. The quick-change bracket according to claim 5, characterized in that: The reinforcing rib comprises a first mounting plate, the first mounting plate is in contact with the first mounting surface and the second mounting surface, and the vehicle beam and the bracket body are connected to the adapter bracket via the first mounting plate.

7. The quick-change bracket according to claim 6, characterized in that: The first mounting plate is provided with a plurality of fifth mounting holes or a plurality of sixth mounting holes along its extension direction; Wherein, the fifth mounting hole is arranged in alignment with the mounting holes of the vehicle beam and the first mounting surface; The sixth mounting hole is arranged in alignment with the mounting holes of the bracket body and the second mounting surface.

8. The quick-change bracket according to claim 6, characterized in that: The reinforcing rib further includes a first folded edge portion, which extends from two ends of the first mounting plate and fits along the wall surface of the first sub-cavity and / or the second sub-cavity.

9. The quick-change bracket according to claim 1, characterized in that: When the first mounting surface and the second mounting surface are parallel to each other, the first mounting surface is bent toward a direction close to the second mounting surface; Alternatively, when the first mounting surface is perpendicular to the second mounting surface, an end surface of the second cavity away from the second mounting surface is bent toward a direction close to the second mounting surface.

10. The quick-change bracket according to claim 8, characterized in that: The cross-sectional shape of the outer periphery of the adapter bracket obtained by cutting along a direction perpendicular to the length direction of the adapter bracket is trapezoidal.

11. The quick-change bracket according to claim 1, characterized in that: The bracket body includes two oppositely arranged longitudinal beams, and the longitudinal beams are connected to the second installation body of the adapter bracket.

12. The quick-change bracket according to claim 11, characterized in that: The longitudinal beam includes a top plate, a side plate and a bottom plate which are connected in sequence, and the quick-change bracket also includes a second mounting plate, and the side plate is connected to the second mounting body through the second mounting plate.

13. The quick-change bracket according to claim 12, characterized in that: The top plate extends upward from the edge of the top plate in a vertical direction to form a second folded edge portion.

14. The quick-change bracket according to claim 12, characterized in that: The bottom plate extends upward from the edge of the bottom plate in a vertical direction to form a third folded edge portion.

15. The quick-change bracket according to claim 11, characterized in that: The quick-change bracket also includes two oppositely arranged cross beams and columns. The cross beams extend along the width direction of the electric vehicle. The two cross beams are respectively connected to the two ends between the two longitudinal beams through the columns. The longitudinal beams, columns and cross beams are combined to form a frame structure.

16. A battery-swap vehicle, characterized in that: The invention comprises a quick-change bracket as claimed in any one of claims 1 to 15; and further comprises two oppositely arranged vehicle beams, Wherein, the vehicle beam includes a top wall portion, a side wall portion and a bottom wall portion; the quick-change bracket includes an adapter bracket and a bracket body, the adapter bracket is connected to the outer sides of two different vehicle beams, the adapter bracket includes a first mounting body and a second mounting body, the first mounting body is connected to the outer side of the vehicle beam, and the second mounting body is connected to the bracket body.

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