Vehicle

Abstract

The present disclosure relates to a vehicle including a subframe; the battery pack is located on the rear side of the auxiliary frame and provided with an interface, and the interface comprises at least one of a high-voltage interface, a low-voltage interface and a cooling system interface; the protective structure is respectively connected with the auxiliary frame and the battery pack, and the protective structure is arranged on the lower side of the interface and covers the interface; the protection structure has a width in the left-right direction of the vehicle, and the width of the front end of the protection structure is larger than that of the rear end of the protection structure. According to the vehicle, the safety performance of the battery pack during vehicle head-on collision can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular, to a vehicle. BACKGROUND

[0002] In the related art, for a hybrid vehicle or an electric vehicle, a battery pack is generally provided, and at present, it is urgent to improve the safety performance of the battery pack in a vehicle frontal collision. SUMMARY

[0003] The purpose of the present disclosure is to provide a vehicle capable of improving the safety performance of a battery pack in a vehicle frontal collision.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a vehicle, comprising:

[0005] a subframe;

[0006] a battery pack located at the rear side of the subframe and having an interface, the interface comprising at least one of a high-voltage interface, a low-voltage interface, and a cooling system interface; and

[0007] a protective structure connected with the subframe and the battery pack respectively, the protective structure being arranged at the lower side of the interface and covering the interface; the protective structure having a width in the left-right direction of the vehicle, the width of the front end of the protective structure being greater than the width of the rear end of the protective structure.

[0008] Optionally, the protective structure comprises a first protective member and a second protective member, the first protective member being connected with the subframe and the battery pack respectively, and the second protective member being connected to the first protective member; at least part of the first protective member covers the interface in a direction from bottom to top.

[0009] Optionally, the first protective member comprises a left segment, a right segment, and a connecting segment, the connecting segment being connected between the left segment and the right segment, the connecting segment, the left segment, and the right segment collectively forming a gap, and the gap being located at the front side of the connecting segment.

[0010] Optionally, the subframe comprises a rear cross beam, and the second protective member is arranged between the rear cross beam and the battery pack and covers at least part of the gap.

[0011] Optionally, the subframe comprises a left longitudinal beam and a right longitudinal beam, a front end of the left segment is provided with a first connecting portion connected with the left longitudinal beam, a front end of the right segment is provided with a second connecting portion connected with the right longitudinal beam, a rear end of the left segment is provided with a third connecting portion connected with the battery pack, and a rear end of the right segment is provided with a fourth connecting portion connected with the battery pack.

[0012] The distance between the first connecting part and the second connecting part is greater than the distance between the third connecting part and the fourth connecting part.

[0013] Optionally, the left section is provided with a fifth connecting part connected with the battery pack, and the line connecting the first connecting part and the fifth connecting part is the same as the extension trend of the left longitudinal beam.

[0014] The right section is provided with a sixth connecting part connected with the battery pack, and the line connecting the second connecting part and the sixth connecting part is the same as the extension trend of the left longitudinal beam.

[0015] Optionally, the left section is provided with a seventh connecting part connected with the battery pack, and the seventh connecting part is located in front of the third connecting part, and the line connecting the seventh connecting part and the third connecting part is the same as the extension trend of the left longitudinal beam.

[0016] The right section is provided with a ninth connecting part connected with the battery pack, and the ninth connecting part is located in front of the fourth connecting part, and the line connecting the ninth connecting part and the fourth connecting part is the same as the extension trend of the right longitudinal beam.

[0017] Optionally, the subframe comprises a left longitudinal beam and a right longitudinal beam, and the left longitudinal beam and the right longitudinal beam gradually approach each other in the direction from front to back.

[0018] The left section and the right section each have a first recess and a second recess recessed upward, the first recess and the second recess of the left section are the same as the extension trend of the left longitudinal beam, and the first recess and the second recess of the right section are the same as the extension trend of the right longitudinal beam.

[0019] The first recess is located on the side of the second recess away from the gap in the left-right direction, wherein the first recess of the left section is provided with a first connecting part and a fifth connecting part, the second recess of the left section is provided with a third connecting part and a seventh connecting part, the first recess of the right section is provided with a second connecting part and a sixth connecting part, and the second recess of the right section is provided with a fourth connecting part and a ninth connecting part.

[0020] Optionally, the subframe comprises a rear cross beam, the left section is provided with an eighth connecting part connected with the rear cross beam, the eighth connecting part is arranged in the second recess of the left section, and the line connecting the eighth connecting part, the seventh connecting part and the third connecting part is the same as the extension trend of the left longitudinal beam.

[0021] The right section is provided with a tenth connecting part connected with the rear cross beam, the tenth connecting part is arranged in the second recess of the right section, and the line connecting the tenth connecting part, the ninth connecting part and the fourth connecting part is the same as the extension trend of the right longitudinal beam.

[0022] Optionally, the second protective member and the first recess form a first force transmission cavity, and the second protective member and the second recess form a second force transmission cavity.

[0023] A first protrusion is arranged between the first recess and the second recess, and the second protective member is connected with the first protrusion.

[0024] Optionally, the second protective member is formed with a second protrusion, a front end of the second protrusion is higher than a rear end of the second protrusion, and the second protrusion is used to form a second force transmission cavity with a second recess.

[0025] A third protrusion is arranged on a part of the second protective member covering the gap, a front end of the third protrusion is higher than a rear end of the third protrusion.

[0026] Optionally, corresponding parts of the second protective member and the left segment and the right segment are respectively formed with front side walls, and the front side walls extend backward in a direction from the gap to the first recess.

[0027] Optionally, the left segment, the right segment, and the connecting segment are connected by welding.

[0028] Optionally, the second protective member includes a second protective member left segment, a second protective member right segment, and a second protective member connecting segment, the second protective member left segment is connected with the second protective member right segment through the second protective member connecting segment, the second protective member left segment is connected with the left segment, and the second protective member right segment is connected with the right segment, wherein the second protective member left segment, the second protective member right segment, and the second protective member connecting segment are connected by welding.

[0029] By means of the technical scheme, in the vehicle provided by the present disclosure, the protection structure can cover the interface in the direction from bottom to top, that is, the interface is covered by the protection structure when viewed from bottom to top, so that the protection structure can provide coverage for the interface from the bottom of the vehicle to protect the interface and prevent stones and other foreign matters from splashing during the driving of the vehicle to cause damage to the interface, thereby facilitating the normal work of the battery pack. Among them, since the protection structure is connected between the auxiliary frame and the battery pack, and the width of the front end of the protection structure is relatively wide, the supportability of the front end of the protection structure is good, and in the event of a frontal collision, the protection structure can support the battery pack; the rear end of the protection structure is relatively narrow and is easy to deform, that is, the collision force can be absorbed by deformation, thereby, through the design of the front wide and rear narrow of the protection structure, the protection structure is less likely to deform as it goes further to the rear, and the force transmission area formed by the protection structure increases from the front side to the rear side, which can effectively disperse the transmitted force and reduce the deformation of the battery pack, thereby protecting the battery pack. At the same time, the force transmission area on the front side is small, which can reduce the upper limit of the stress, and the force per unit area will be relatively large, thereby collapsing first during the collision, and the force transmission area on the rear side is large, thereby being able to withstand a large force, and thereby protecting the battery pack from damage, thereby, from the front side to the rear side, the stress on the protection structure gradually changes, that is, the stress gradually increases, which can realize the relatively uniform bearing of the force by the protection structure, so that it can be crushed in turn and gradually absorb energy, thereby reducing or even avoiding damage to the battery pack and protecting the passenger compartment, so as to effectively improve the safety performance of the battery pack in the event of a frontal collision of the vehicle.

[0030] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and together with the specific embodiments below, serve to explain the present disclosure but do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 is a side view schematic diagram of a partial structure of a vehicle provided according to an embodiment of the present disclosure;

[0033] Figure 2 is a bottom view schematic diagram of a partial structure of a vehicle provided according to an embodiment of the present disclosure;

[0034] Figure 3 is a bottom view schematic diagram of a partial structure of a vehicle provided according to an embodiment of the present disclosure, wherein the protection structure is removed;

[0035] Figure 4 is a perspective schematic diagram of a protection structure in a vehicle provided according to an embodiment of the present disclosure;

[0036] Figure 5is a bottom view schematic diagram of a protection structure in a vehicle according to an embodiment of the present disclosure;

[0037] Figure 6 is a partial sectional view schematic diagram of a protection structure in a vehicle according to an embodiment of the present disclosure;

[0038] Figure 7 is a partial structure schematic diagram of a protection structure in a vehicle according to an embodiment of the present disclosure;

[0039] Figure 8 is a structure schematic diagram of a first protection member in a vehicle according to an embodiment of the present disclosure.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1 - subframe, 11 - rear cross beam, 12 - left longitudinal beam, 13 - right longitudinal beam, 2 - battery pack, 21 - interface, 211 - high-voltage interface, 212 - low-voltage interface, 213 - cooling system interface, 3 - protection structure, 31 - first protection member, 311 - left section, 312 - right section, 313 - connecting section, 314 - notch, 315 - first recess, 316 - second recess, 317 - first protrusion, 32 - second protection member, 321 - second protrusion, 322 - third protrusion, 323 - front side wall, 324 - second protection member left section, 325 - second protection member right section, 326 - second protection member connecting section, 33 - first force transmission cavity, 34 - second force transmission cavity, 10 - first connecting part, 20 - second connecting part, 30 - third connecting part, 40 - fourth connecting part, 50 - fifth connecting part, 60 - sixth connecting part, 70 - seventh connecting part, 80 - eighth connecting part, 90 - ninth connecting part, 100 - tenth connecting part, 110 - eleventh connecting part. DETAILED DESCRIPTION

[0042] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are intended to explain and illustrate the present disclosure, but not to limit the present disclosure.

[0043] In the present disclosure, the positional words such as "up", "down", "front", "back", "left", "right" used without the opposite description are based on the direction of the vehicle in the drawings. Figure 1 , Figure 2 , Figure 5 and Figure 6The definitions are as follows: for a vehicle, the top side of the roof is the upper side, the bottom side of the vehicle is the lower side, the front side of the vehicle is the front side, the rear side of the vehicle is the rear side, and the left-right direction refers to the width direction of the vehicle. The upper-lower direction can also refer to the direction of gravity of the vehicle. In "inner and outer", the inner refers to the direction of the vehicle pointing to the outside, and the outer refers to the direction of the vehicle pointing to the outside. The terms "first" and "second" are used to distinguish one element from another element, and do not have sequentiality and importance. In addition, the following description, when referring to the drawings, the same reference numerals in different drawings represent the same or similar elements, and the present disclosure does not repeat here.

[0044] According to some embodiments of the present disclosure, a vehicle is provided, referring to Figures 1 to 5 The vehicle includes a subframe 1, a battery pack 2 located at the rear side of the subframe 1 and having an interface 21, the interface 21 including at least one of a high-voltage interface 211, a low-voltage interface 212, and a cooling system interface 213, and a protection structure 3 connected with the subframe 1 and the battery pack 2 respectively, the protection structure 3 being arranged at the lower side of the interface 21 and covering the interface 21, the protection structure 3 having a width in the left-right direction of the vehicle, the width of the front end of the protection structure 3 being greater than the width of the rear end of the protection structure 3.

[0045] By the technical solution, the protection structure 3 can cover the interface 21 in the direction from bottom to top, that is, the interface 21 is covered by the protection structure 3 when viewed from bottom to top, or the protection structure 3 covers the interface 21, so that the protection structure 3 can provide coverage for the interface 21 from the bottom of the vehicle to protect the interface 21 and prevent stones and other foreign matters from splashing during the driving of the vehicle to damage the interface 21, thereby facilitating the normal work of the battery pack 2. Since the protection structure 3 is connected between the subframe 1 and the battery pack 2, and the width of the front end of the protection structure 3 is wide, the supportability of the front end of the protection structure 3 is good, and the protection structure 3 can support the battery pack 2 in the event of a frontal collision. The rear end of the protection structure 3 is narrow and is easy to deform, that is, the collision force can be absorbed by deformation, so that, by the design of the wide front end and the narrow rear end of the protection structure 3, the protection structure 3 is less likely to deform as it goes backward, the force transmission area formed by the protection structure 3 increases from the front side to the rear side, the force transmitted can be effectively dispersed, the deformation of the battery pack is reduced, and the battery pack 2 is protected. At the same time, the force transmission area of the front side is small, the upper limit of the stress can be reduced, and the force per unit area is relatively large, so that the front side collapses first in the event of a collision, and the force transmission area of the rear side is large, so that a large force can be borne, and the battery pack is protected from damage. Therefore, the stress of the protection structure 3 gradually changes from the front side to the rear side, that is, the stress gradually increases, the protection structure 3 can uniformly bear the force, the protection structure 3 can be crushed in turn, energy can be gradually absorbed, and the battery pack can be damaged, the passenger compartment can be protected, and the safety performance of the battery pack 2 in the event of a frontal collision of the vehicle can be effectively improved.

[0046] It should be noted that the width of the protection structure 3 can be understood as the distance or interval between the left edge and the right edge of the protection structure 3, the width of the front end of the protection structure 3 can be understood as the distance between the left edge and the right edge of the front end of the protection structure 3, and the width of the rear end of the protection structure 3 can be understood as the distance between the left edge and the right edge of the rear end of the protection structure 3. The width of the front end of the protection structure 3 can be referred to as D3 in Figure 5 , and the width of the rear end of the protection structure 3 can be referred to as D2 in Figure 5 , that is, the width of the rear end of the protection structure 3 can be equal to the interval between the third connecting portion 30 and the fourth connecting portion 40. In addition, the high-voltage interface 211 can be connected with a high-voltage wire harness, the low-voltage interface 212 can be connected with a low-voltage wire harness, and the cooling system interface 213 can be connected with a cooling system, wherein the high-voltage wire harness, the low-voltage wire harness, and the cooling system can extend into the front compartment of the vehicle.

[0047] In some embodiments of the present disclosure, reference can be made to Figures 2 to 5As shown in FIG. 1, the protection structure 3 includes a first protection piece 31 and a second protection piece 32, the first protection piece 31 is connected with the sub-frame 1 and the battery pack 2 respectively, i.e. the first protection piece 31 is connected between the sub-frame 1 and the battery pack 2, and the second protection piece 32 can be connected on the first protection piece 31; at least part of the first protection piece 31 covers the interface 21 in the direction from bottom to top. In this way, the first protection piece 31 can play a role in protecting the interface 21 and transmitting force between the sub-frame 1 and the battery pack 2, and the second protection piece 32 can play a role in reinforcing the first protection piece 31.

[0048] In some embodiments, the first protection piece 31 and the second protection piece 32 can both be configured in a plate shape and can be formed by stamping, of course, the first protection piece 31 and the second protection piece 32 can be integrally formed, and the present disclosure does not limit this.

[0049] In some embodiments of the present disclosure, referring to Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the first protection piece 31 can include a left segment 311, a right segment 312 and a connecting segment 313, the connecting segment 313 is connected between the left segment 311 and the right segment 312, and the connecting segment 313, the left segment 311 and the right segment 312 together enclose a notch 314, the notch 314 is located on the front side of the connecting segment 313. Here, the left segment 311 and the right segment 312 can both be connected between the sub-frame 1 and the battery pack 2. Among them, by setting the notch 314 on the front side of the connecting segment 313, it is convenient to overhaul the above-mentioned high-voltage wire harness, low-voltage wire harness and cooling system, and the notch 314 set on the front side can avoid too much impact force being transmitted to the battery pack 2, which is beneficial to improve the safety performance of the battery pack 2. Among them, arranging the notch 314 on the front side of the connecting segment 313 can break the force transmission of the first protection piece 31 on the front side of the connecting segment 313, which makes the vehicle be able to transmit force along the left segment 311 and the right segment 312 and in the front-rear direction when a frontal rigid collision occurs, rather than starting from the front side of the connecting segment 313. At this time, the left segment 311 and the right segment 313 can cooperate with the longitudinal beam of the sub-frame 1 to transmit force, which conforms to the force transmission path of the first protection piece 31.

[0050] In addition, the notch 314 can make the water or foreign matter on the upper side fall from the notch 314, which is beneficial to the safety of driving. Moreover, the notch 314 can also reduce the weight of the first protection piece 31, which is beneficial to the lightweight design of the vehicle.

[0051] In some embodiments, the left segment 311, the connecting segment 313 and the right segment 312 can be integrally formed, which can reduce the number of parts of the protection structure 3 and simplify the assembly of the protection structure 3, and the present disclosure does not limit this.

[0052] In some embodiments, referring to Figures 2 to 7 As shown in FIG. 12, the subframe 1 includes a rear cross beam 11, and the second protective member 32 is arranged between the rear cross beam 11 and the battery pack 2 and covers at least part of the gap 314. In this way, the second protective member 32 can reduce the probability of foreign objects such as flying stones damaging the high-voltage wiring harness, the low-voltage wiring harness, and the cooling system through the gap 314, and protect the high-voltage interface 211, the low-voltage interface 212, and the cooling system interface 213. In addition, the second protective structure 3 can also improve the structural strength of the protective structure 3 at the gap 314, improve the connection strength between the left segment 311 and the right segment 312, improve the force transmission performance of the protective structure, and stabilize the force transmission path of the left segment 311 and the right segment 312 to improve the force transmission stability between the left segment 311 and the right segment 312. In some embodiments, the rear cross beam 11 can be configured as a stepped beam with a front low and a rear high, and the protective structure 3 can be connected to the higher side of the rear cross beam 11.

[0053] In some embodiments of the present disclosure, referring to Figures 2 to 5 and Figure 8 As shown in FIG. 12, the subframe 1 includes a rear cross beam 11, and the second protective member 32 is arranged between the rear cross beam 11 and the battery pack 2 and covers at least part of the gap 314. In this way, the second protective member 32 can reduce the probability of foreign objects such as flying stones damaging the high-voltage wiring harness, the low-voltage wiring harness, and the cooling system through the gap 314, and protect the high-voltage interface 211, the low-voltage interface 212, and the cooling system interface 213. In addition, the second protective structure 3 can also improve the structural strength of the protective structure 3 at the gap 314, improve the connection strength between the left segment 311 and the right segment 312, improve the force transmission performance of the protective structure, and stabilize the force transmission path of the left segment 311 and the right segment 312 to improve the force transmission stability between the left segment 311 and the right segment 312. In some embodiments, the rear cross beam 11 can be configured as a stepped beam with a front low and a rear high, and the protective structure 3 can be connected to the higher side of the rear cross beam 11.

[0054] In some embodiments, the distance between the first connecting portion 10 and the second connecting portion 20 can be greater than the distance between the third connecting portion 30 and the fourth connecting portion 40. In this way, the protective structure 3 with a front wide and a rear narrow can be connected between the battery pack 2 and the subframe 1, and this makes the width of the protective structure 3 between the first connecting portion 10 and the second connecting portion 20 greater than the width between the third connecting portion 30 and the fourth connecting portion 40, thereby making the protective structure 3 more difficult to deform as it goes further back, and the force transmission area formed by the protective structure 3 increases from the front side to the rear side, which can effectively disperse the transmitted force, reduce the deformation of the battery pack, and further protect the battery pack 2. At the same time, the force transmission area of the protective structure 3 at the first connecting portion 10 and the second connecting portion 20 is smaller, which can reduce the upper limit of the force it bears, and the force per unit area will be relatively large, thereby collapsing first during a collision, and the force transmission area of the protective structure 3 at the third connecting portion 30 and the fourth connecting portion 40 is larger, thereby being able to bear a larger force and thereby protecting the battery pack from damage, thereby the force borne by the protective structure 3 gradually changes from the front side to the rear side, i.e., the force gradually increases, which can achieve a more uniform load of the protective structure 3 to the force, so that it can be crushed in turn and gradually absorb energy, thereby reducing or even avoiding damage to the battery pack and protecting the passenger compartment. Here, referring to Figure 5As shown, the distance between the first connecting part 10 and the second connecting part 20 can be D1, and the distance between the third connecting part 30 and the fourth connecting part 40 can be D2.

[0055] In some implementations, reference Figures 2 to 5 as well as Figure 8 As shown, the left segment 311 may be provided with a fifth connecting part 50 connected to the battery pack 2. The line connecting the first connecting part 10 and the fifth connecting part 50 is in the same direction as the extension of the left longitudinal beam 12. In this way, when the vehicle is involved in a frontal collision, the left longitudinal beam 12 can transfer the impact force to the left segment 311 and then to the battery pack 2 through the force transmission path of the line connecting the first connecting part 10 and the fifth connecting part 50. This makes the force transmission paths of the left longitudinal beam 12 and the left segment 311 the same, and the left longitudinal beam 12 and the left segment 311 can transmit force as a whole in the front-rear direction. This helps to absorb the impact force and protect the battery cells and other components in the battery pack 2 from damage.

[0056] Similarly, refer to Figures 2 to 5 as well as Figure 8 As shown, the right segment 312 is provided with a sixth connecting part 60 that connects to the battery pack 2. The line connecting the second connecting part 20 and the sixth connecting part 60 follows the same extension trend as the left longitudinal beam 12. In this way, when the vehicle is involved in a frontal collision, the right longitudinal beam 13 can transfer the impact force to the right segment 312, and then to the battery pack 2 through the force transmission path of the line connecting the second connecting part 20 and the sixth connecting part 60. This makes the force transmission paths of the right longitudinal beam 13 and the right segment 312 basically the same, and the right longitudinal beam 13 and the right segment 312 can transmit force as a whole in the front-rear direction. This helps to absorb the impact force and protect the battery cells and other components in the battery pack 2 from damage.

[0057] In some embodiments, reference Figures 2 to 5 as well as Figure 8 As shown, the left segment 311 may be provided with a seventh connecting part 70 connected to the battery pack 2. The seventh connecting part 70 is located in front of the third connecting part 30. The line connecting the seventh connecting part 70 and the third connecting part 30 may have the same extension trend as the left longitudinal beam 12. In this way, when the vehicle is involved in a frontal collision, the left longitudinal beam 12 can transfer the impact force to the left segment 311, and further transfer it to the battery pack 2 through the force transmission path of the line connecting the seventh connecting part 70 and the third connecting part 30. This makes the force transmission path of the left longitudinal beam 12 and the left segment 311 the same, which can better transmit force. Moreover, since the third connecting part 30 and the seventh connecting part 70 are arranged on the force transmission path, the force transmission effect is better. In addition, the above-mentioned arrangement increases the number of connecting parts on the force transmission path of the left segment 311, which is conducive to absorbing the impact force and protecting the battery cells and other components in the battery pack 2 from damage.

[0058] Similarly, refer to Figures 2 to 5 as well asFigure 8 As shown in FIG. 12, the right section 312 is provided with a ninth connecting portion 90 connected with the battery pack 2, the ninth connecting portion 90 is located in front of the fourth connecting portion 40, and the connecting line between the ninth connecting portion 90 and the fourth connecting portion 40 is the same as the extension trend of the right longitudinal beam 13. In this way, when the vehicle is subjected to a frontal collision, the right longitudinal beam 13 can transmit the impact force to the right section 312, and further transmit the impact force to the battery pack 2 through the force transmission path of the connecting line between the ninth connecting portion 90 and the fourth connecting portion 40, so that the force transmission path of the right longitudinal beam 13 and the right section 312 is the same, and the force transmission is better. Because the fourth connecting portion 40 and the ninth connecting portion 90 are arranged on the force transmission path, the force transmission effect is better, and the above arrangement increases the number of connecting portions on the force transmission path of the right section 312, which is beneficial to absorbing the impact force and protecting the devices such as the battery cell in the battery pack 2 from being damaged.

[0059] In some embodiments of the present disclosure, referring to Figures 1 to 3 As shown in FIG. 12, the right section 312 is provided with a ninth connecting portion 90 connected with the battery pack 2, the ninth connecting portion 90 is located in front of the fourth connecting portion 40, and the connecting line between the ninth connecting portion 90 and the fourth connecting portion 40 is the same as the extension trend of the right longitudinal beam 13. In this way, when the vehicle is subjected to a frontal collision, the right longitudinal beam 13 can transmit the impact force to the right section 312, and further transmit the impact force to the battery pack 2 through the force transmission path of the connecting line between the ninth connecting portion 90 and the fourth connecting portion 40, so that the force transmission path of the right longitudinal beam 13 and the right section 312 is the same, and the force transmission is better. Because the fourth connecting portion 40 and the ninth connecting portion 90 are arranged on the force transmission path, the force transmission effect is better, and the above arrangement increases the number of connecting portions on the force transmission path of the right section 312, which is beneficial to absorbing the impact force and protecting the devices such as the battery cell in the battery pack 2 from being damaged.

[0060] In some embodiments of the present disclosure, referring to Figure 2 、 Figure 4 、 Figure 5 and Figure 8As shown in FIG. 15, the first recess 315 is located on the side away from the notch 314 in the left-right direction of the second recess 316, wherein the first recess 315 of the left section 311 is provided with the first connecting part 10 and the fifth connecting part 50, the second recess 316 of the left section 311 is provided with the third connecting part 30 and the seventh connecting part 70, the first recess 315 of the right section 312 is provided with the second connecting part 20 and the sixth connecting part 60, and the second recess 316 of the right section 312 is provided with the fourth connecting part 40 and the ninth connecting part 90. In this way, the first recess 315 of the left section 311 and the first connecting part 10 and the fifth connecting part 50 have the same force transmission path and can be arranged together, the second recess 316 of the left section 311 and the third connecting part 30 and the seventh connecting part 70 have the same force transmission path and can be arranged together, so that the plurality of connecting parts provided on the left section 311 can improve the rigidity of the left section 311 and further improve the force transmission effect of the left section 311, the first recess 315 of the right section 312 and the second connecting part 20 and the sixth connecting part 60 have the same force transmission path and can be arranged together, and the second recess 316 of the right section 312 and the fourth connecting part 40 and the ninth connecting part 90 have the same force transmission path and can be arranged together, so that the plurality of connecting parts provided on the right section 312 can improve the rigidity of the right section 312 and further improve the force transmission effect of the right section 312.

[0061] In some embodiments, referring to Figure 2 、 Figure 4 and Figure 8 As shown in FIG. 15, the first recess 315 is located on the side away from the notch 314 in the left-right direction of the second recess 316, wherein the first recess 315 of the left section 311 is provided with the first connecting part 10 and the fifth connecting part 50, the second recess 316 of the left section 311 is provided with the third connecting part 30 and the seventh connecting part 70, the first recess 315 of the right section 312 is provided with the second connecting part 20 and the sixth connecting part 60, and the second recess 316 of the right section 312 is provided with the fourth connecting part 40 and the ninth connecting part 90. In this way, the first recess 315 of the left section 311 and the first connecting part 10 and the fifth connecting part 50 have the same force transmission path and can be arranged together, the second recess 316 of the left section 311 and the third connecting part 30 and the seventh connecting part 70 have the same force transmission path and can be arranged together, so that the plurality of connecting parts provided on the left section 311 can improve the rigidity of the left section 311 and further improve the force transmission effect of the left section 311, the first recess 315 of the right section 312 and the second connecting part 20 and the sixth connecting part 60 have the same force transmission path and can be arranged together, and the second recess 316 of the right section 312 and the fourth connecting part 40 and the ninth connecting part 90 have the same force transmission path and can be arranged together, so that the plurality of connecting parts provided on the right section 312 can improve the rigidity of the right section 312 and further improve the force transmission effect of the right section 312.

[0062] In some embodiments, referring to Figures 4 to 6As shown in FIG. 1, the second protection member 32 and the first recess 315 can surround the first force transmission cavity 33, and the second recess 316 can surround the second force transmission cavity 34. In this way, the arrangement of the first force transmission cavity 33 and the second force transmission cavity 34 can improve the structural strength of the protection structure 3. In the event of a frontal collision of the vehicle, the first force transmission cavity 33 and the second force transmission cavity 34 can collapse and absorb energy, thereby protecting the battery pack 2. In addition, since the force transmission effect of the cavity is better, the first force transmission cavity 33 and the second force transmission cavity 34 of the left segment 311 have the same extension trend as the left longitudinal beam 12, which can improve the force transmission effect of the left segment 311. Similarly, the first force transmission cavity 33 and the second force transmission cavity 34 of the right segment 312 have the same extension trend as the right longitudinal beam 13, which can improve the force transmission effect of the right segment 312.

[0063] In some embodiments, the first force transmission cavity 33 on the left side can have the same extension trend as the left longitudinal beam 12 of the subframe 1, the second force transmission cavity 34 on the left side can have the same extension trend as the left longitudinal beam 12 of the subframe 1, the first force transmission cavity 33 on the right side can have the same extension trend as the right longitudinal beam 13 of the subframe 1, and the second force transmission cavity 34 on the right side can have the same extension trend as the right longitudinal beam 13 of the subframe 1. In this way, the arrangement of the first force transmission cavity 33 and the second force transmission cavity 34 can absorb impact force and transmit the force of the left longitudinal beam 12 or the right longitudinal beam 13 to the battery pack 2 in substantially the same direction. Wherein, referring to Figure 5 As shown in FIG. 1, the second recess 316 can extend through the first protection member 31 in the front-rear direction to further improve the structural strength of the first protection member 31.

[0064] In some embodiments, referring to Figure 6 As shown in FIG. 1, a first protrusion 317 is arranged between the first recess 315 and the second recess 316, and the second protection member 32 is connected to the first protrusion 317. In this way, the first recess 315, the second recess 316, and the first protrusion 317 can form an M-shaped plate for the left segment 311 or the right segment 312, thereby effectively improving the structural strength of the left segment 311 or the right segment 312. In addition, the connection of the first protrusion 317 and the second protection member 32 can be achieved without affecting the force transmission of the first recess 315 and the second recess 316, thereby achieving the connection of the first protection member 31 and the second protection member 32. Wherein, the concave-convex of the first recess 315 and the first protrusion 317 is relative, and the concave-convex of the second recess 316 and the first protrusion 317 is also relative.

[0065] In some embodiments, referring to Figures 4 to 6As shown in FIG. 12, the second protection member 32 is formed with a second protrusion 321, a front end of the second protrusion 321 is higher than a rear end of the second protrusion 321, and the second protrusion 321 is used to form the second force transmission cavity 34 together with the second recess 316. In this way, the second protrusion 321 can be designed to be high in front and low in back, and the advantage of this design is that, on the one hand, the second force transmission cavity 34 is designed to be a variable cross-section cavity, i.e., a cavity with variable height, which is beneficial to improve the smoothness of force transmission of the second force transmission cavity 34, and on the other hand, the second protrusion 321 can be designed to be a fluid type structure, which can reduce the wind resistance and wind noise of the vehicle during driving, and the fluid type design can also facilitate the smooth sliding of obstacles and avoid hard collision between the second protrusion 321 and the obstacles.

[0066] In some embodiments, with reference to Figures 4 to 6 As shown in FIG. 12, the second protection member 32 is formed with a second protrusion 321, a front end of the second protrusion 321 is higher than a rear end of the second protrusion 321, and the second protrusion 321 is used to form the second force transmission cavity 34 together with the second recess 316. In this way, the second protrusion 321 can be designed to be high in front and low in back, and the advantage of this design is that, on the one hand, the second force transmission cavity 34 is designed to be a variable cross-section cavity, i.e., a cavity with variable height, which is beneficial to improve the smoothness of force transmission of the second force transmission cavity 34, and on the other hand, the second protrusion 321 can be designed to be a fluid type structure, which can reduce the wind resistance and wind noise of the vehicle during driving, and the fluid type design can also facilitate the smooth sliding of obstacles and avoid hard collision between the second protrusion 321 and the obstacles.

[0067] In some embodiments, with reference to Figure 2 、 Figure 4 and Figure 5 As shown in FIG. 12, the second protection member 32 is formed with a second protrusion 321, a front end of the second protrusion 321 is higher than a rear end of the second protrusion 321, and the second protrusion 321 is used to form the second force transmission cavity 34 together with the second recess 316. In this way, the second protrusion 321 can be designed to be high in front and low in back, and the advantage of this design is that, on the one hand, the second force transmission cavity 34 is designed to be a variable cross-section cavity, i.e., a cavity with variable height, which is beneficial to improve the smoothness of force transmission of the second force transmission cavity 34, and on the other hand, the second protrusion 321 can be designed to be a fluid type structure, which can reduce the wind resistance and wind noise of the vehicle during driving, and the fluid type design can also facilitate the smooth sliding of obstacles and avoid hard collision between the second protrusion 321 and the obstacles.

[0068] In some embodiments of the present disclosure, with reference to Figure 8 As shown in FIG. 12, the left segment 311, the right segment 312 and the connecting segment 313 can be connected by welding, which, on the one hand, can facilitate the adjustment of the structure of the left segment 311, the right segment 312 and the connecting segment 313 respectively, and on the other hand, the welding connection can improve the reliability of the connection between the adjacent two of the left segment 311, the right segment 312 and the connecting segment 313.

[0069] In some embodiments of the present disclosure, referring to Figure 5 and Figure 6 As shown in FIG. 3, the second guard 32 can include a second guard left segment 324, a second guard right segment 325, and a second guard connecting segment 326. The second guard left segment 324 can be connected to the second guard right segment 325 through the second guard connecting segment 326, the second guard left segment 324 is connected to the left segment 311, and the second guard right segment 325 is connected to the right segment 312. The second guard left segment 324, the second guard right segment 325, and the second guard connecting segment 326 are connected by welding.

[0070] In this way, the connection strength between the second guard 32 and the first guard 31 can be improved by connecting the second guard left segment 324 and the left segment 311, and connecting the second guard right segment 325 and the right segment 312. In addition, the second guard left segment 324, the second guard right segment 325, and the second guard connecting segment 326 are connected by welding. On the one hand, this can facilitate the adjustment of the structure of the second guard left segment 324, the second guard right segment 325, and the second guard connecting segment 326, respectively. On the other hand, the welding connection mode can improve the reliability of the connection between the second guard left segment 324, the second guard right segment 325, and the second guard connecting segment 326.

[0071] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0072] It should be noted that, in the above-described specific embodiments, various specific technical features can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0073] Furthermore, various different embodiments of the present disclosure can also be combined in any appropriate manner, as long as they do not deviate from the idea of the present disclosure, and they should also be considered as disclosed by the present disclosure.

Claims

1. A vehicle, characterized in that, include: Subframe; The battery pack is located at the rear of the subframe and has an interface, which includes at least one of a high-voltage interface, a low-voltage interface, and a cooling system interface. as well as The protective structure is connected to the subframe and the battery pack respectively. The protective structure is located on the lower side of the interface and covers the interface. The protective structure has a width in the left-right direction of the vehicle, and the width of the front end of the protective structure is greater than the width of the rear end of the protective structure.

2. The vehicle according to claim 1, characterized in that, The protective structure includes a first protective component and a second protective component. The first protective component is connected to the subframe and the battery pack, respectively, and the second protective component is connected to the first protective component. At least a portion of the first protective component covers the interface in an upward direction.

3. The vehicle according to claim 2, characterized in that, The first protective component includes a left segment, a right segment, and a connecting segment. The connecting segment connects the left segment and the right segment. The connecting segment, the left segment, and the right segment together form a notch, which is located on the front side of the connecting segment.

4. The vehicle according to claim 3, characterized in that, The subframe includes a rear crossbeam, and the second protective element is disposed between the rear crossbeam and the battery pack, covering at least a portion of the gap.

5. The vehicle according to claim 3, characterized in that, The subframe includes a left longitudinal beam and a right longitudinal beam. The front end of the left segment is provided with a first connecting part that connects to the left longitudinal beam, and the front end of the right segment is provided with a second connecting part that connects to the right longitudinal beam. The rear end of the left segment is provided with a third connecting part that connects to the battery pack, and the rear end of the right segment is provided with a fourth connecting part that connects to the battery pack. The distance between the first connecting part and the second connecting part is greater than the distance between the third connecting part and the fourth connecting part.

6. The vehicle according to claim 5, characterized in that, The left section is provided with a fifth connecting part that connects to the battery pack, and the line connecting the first connecting part and the fifth connecting part follows the same extension trend as the left longitudinal beam. The right section is provided with a sixth connecting part that connects to the battery pack, and the line connecting the second connecting part and the sixth connecting part follows the same extension trend as the left longitudinal beam.

7. The vehicle according to claim 6, characterized in that, The left section is provided with a seventh connecting part that connects to the battery pack. The seventh connecting part is located in front of the third connecting part. The line connecting the seventh connecting part and the third connecting part is in the same direction as the extension of the left longitudinal beam. The right segment is provided with a ninth connecting part that connects to the battery pack. The ninth connecting part is located in front of the fourth connecting part, and the line connecting the ninth connecting part and the fourth connecting part follows the same extension trend as the right longitudinal beam.

8. The vehicle according to claim 7, characterized in that, Both the left segment and the right segment have an upwardly recessed first recess and a second recess. The first recess and the second recess of the left segment have the same extension trend as the left longitudinal beam, and the first recess and the second recess of the right segment have the same extension trend as the right longitudinal beam. The first recess is located on the side of the second recess away from the notch in the left-right direction. The first recess of the left segment is provided with a first connecting part and a fifth connecting part, the second recess of the left segment is provided with a third connecting part and a seventh connecting part, the first recess of the right segment is provided with a second connecting part and a sixth connecting part, and the second recess of the right segment is provided with a fourth connecting part and a ninth connecting part.

9. The vehicle according to claim 8, characterized in that, The subframe includes a rear crossbeam, and the left section is provided with an eighth connecting part that connects to the rear crossbeam. The eighth connecting part is located in the second recess of the left section, and the line connecting the eighth connecting part, the seventh connecting part, and the third connecting part has the same extension trend as the left longitudinal beam. The right section is provided with a tenth connecting part that connects to the rear crossbeam. The tenth connecting part is located in the second recess of the right section. The tenth connecting part, the ninth connecting part, and the fourth connecting part have the same extension trend as the right longitudinal beam.

10. The vehicle according to claim 8, characterized in that, The second protective member forms a first force transmission cavity with the first recess and a second force transmission cavity with the second recess; A first protrusion is provided between the first recess and the second recess, and the second protective member is connected to the first protrusion.

11. The vehicle according to claim 10, characterized in that, In the longitudinal direction of the vehicle, the second protective member has a second protrusion, the height of the front end of the second protrusion is higher than the height of the rear end of the second protrusion, and the second protrusion is used to form a second force transmission cavity with the second recess. The portion of the second protective member covering the notch has a third protrusion, and in the vehicle longitudinal direction, the height of the front end of the third protrusion is higher than the height of the rear end of the third protrusion.

12. The vehicle according to claim 8, characterized in that, The second protective member has a front sidewall formed in the portion corresponding to the left and right segments, and the front sidewall extends backward at an angle in the direction from the notch to the first recess.

13. The vehicle according to claim 3, characterized in that, The left segment, the right segment, and the connecting segment are connected by welding.

14. The vehicle according to claim 3 or 13, characterized in that, The second protective component includes a left section, a right section, and a connecting section. The left section is connected to the right section via the connecting section. The left section is connected to the left section, and the right section is connected to the right section. The left section, the right section, and the connecting section are connected by welding.

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