Vehicle chassis and vehicle

Abstract

The utility model discloses a vehicle chassis which comprises two doorsill beams located on the two opposite sides of the vehicle chassis, a battery pack and an exhaust structure, the battery pack is fixedly connected between the two doorsill beams, and at least part of the exhaust structure is arranged between one doorsill beam and the battery pack. The distance between one of the threshold beams and the battery pack ranges from 50 cm to 80 cm. The utility model further comprises a vehicle provided with the vehicle chassis.

Description

Technical Field

[0001] The utility model relates to the field of vehicle engine exhaust systems, in particular to a vehicle chassis and a vehicle provided with the vehicle chassis. Background Art

[0002] In the prior art, the exhaust pipe of a hybrid vehicle is generally arranged on the left and / or right side of the vehicle chassis. However, the exhaust pipe needs to occupy a large space of the vehicle chassis, which is not conducive to the layout of the battery pack of the hybrid vehicle. Utility Model Content

[0003] The utility model aims to provide a vehicle chassis and a vehicle provided with the vehicle chassis.

[0004] The utility model provides a vehicle chassis, which includes two threshold beams, a battery pack, and an exhaust structure located on opposite sides thereof, wherein the battery pack is fixedly connected between the two threshold beams, and the exhaust structure is at least partially arranged between one of the threshold beams and the battery pack, and the distance between one of the threshold beams and the battery pack is 50 cm to 80 cm.

[0005] In some embodiments, the exhaust structure includes an exhaust pipe and a heat insulation sleeve sleeved on the exhaust pipe.

[0006] In some embodiments, the exhaust structure further includes a vibration damping member sleeved on the heat insulation sleeve, and the exhaust structure is connected to the door sill beam and the battery pack through the vibration damping member.

[0007] In some embodiments, the vibration damping member includes a vibration damping buckle sleeved on the thermal insulation sleeve and a vibration damping portion disposed on an outer peripheral wall of the vibration damping buckle.

[0008] In some embodiments, at least one of the sill beam and the battery pack is provided with a recessed structure adapted to the vibration damping portion, and the vibration damping portion and the recessed structure are interference fitted.

[0009] In some embodiments, the vibration-damping buckle and the battery pack and at least one of the vibration-damping buckle and the threshold beam are connected via a clamping portion and a clamping hole.

[0010] In some embodiments, the exhaust structure further includes an air inlet pipe, an exhaust pipe, a first bellows, a second bellows and an air outlet pipe, wherein the first bellows is connected between the air inlet pipe and the exhaust pipe, and the second bellows is connected between the air outlet pipe and the exhaust pipe.

[0011] In some embodiments, the battery pack includes a battery pack shell and two first positioning members, the two first positioning members are respectively fixed on opposite sides of the battery pack shell, a receiving groove is provided on the side of the first positioning member facing away from the battery pack shell, the length direction of the receiving groove is parallel to the length direction of the threshold beam, and at least part of the exhaust structure is accommodated in the receiving groove.

[0012] In some embodiments, the first positioning member includes a positioning bar and a support bar connected to one side of the positioning bar, the receiving groove is provided on the side of the support bar facing the positioning bar, and the positioning bar is fixedly connected to the battery pack housing.

[0013] In some embodiments, the threshold beam includes a second positioning member, the second positioning member is connected to a side of the support bar away from the positioning bar, and the exhaust structure is clamped between the second positioning member and the positioning bar.

[0014] In some embodiments, the second positioning member includes a fixing bar and a push bar connected to one side of the fixing bar; one side of the fixing bar is connected to a side of the support bar away from the positioning bar, and the push bar and the positioning bar clamp the heat insulation sleeve of the exhaust structure.

[0015] In some embodiments, a support sheet is provided on a side of the support bar away from the positioning bar, the length direction of the support sheet is parallel to the length direction of the receiving groove, and the fixing bar is fixedly connected to the support sheet.

[0016] In some embodiments, a fixing groove is provided between the positioning bar and the supporting bar, a avoiding groove is provided on the abutting bar, and opposite ends of the vibration damping member are respectively positioned at the fixing groove and the avoiding groove.

[0017] In some embodiments, the threshold beam also includes a connecting frame, the connecting frame includes a first fixing plate, a second fixing plate and a connecting plate, the first fixing plate is connected to one side of the connecting plate, and the second fixing plate is connected to the other side of the connecting plate; the first fixing plate is parallel to the second fixing plate, the first fixing plate is connected to the side of the support bar away from the positioning bar, the connecting plate is inclined toward one side of the receiving groove, the connecting plate presses against the exhaust structure, and the second fixing plate is used to connect to the frame.

[0018] The utility model also provides a vehicle, which includes a frame and a vehicle chassis, the vehicle chassis includes two threshold beams, a battery pack, and an exhaust structure located on opposite sides thereof, the battery pack is fixedly connected between the two threshold beams, the exhaust structure is at least partially arranged between one of the threshold beams and the battery pack, the spacing between one of the threshold beams and the battery pack is 50 cm to 80 cm, and the vehicle chassis is connected to the frame.

[0019] The exhaust structure of the vehicle chassis in the utility model is at least partially arranged between one of the sill beams and the battery pack, and the distance between one of the sill beams and the battery pack is 50cm to 80cm. The distance is small, and the exhaust structure is accommodated in the distance to reduce the space occupied by the exhaust structure in the vehicle chassis, which is beneficial to the layout of other devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present utility model, the drawings required for use in the implementation mode will be briefly introduced below.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a vehicle chassis provided by one embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure explosion of a vehicle chassis;

[0023] Figure 3 yes Figure 2 A schematic diagram of the exhaust structure, one of the door sill beams and the three-dimensional structure of the battery pack;

[0024] Figure 4 yes Figure 3 A schematic diagram of the exhaust structure, one of the door sill beams and a further three-dimensional structure of the battery pack;

[0025] Figure 5 yes Figure 4 A schematic diagram of the exhaust structure, one of the door sill beams and a further three-dimensional structure of the battery pack;

[0026] Figure 6 yes Figure 5 A schematic diagram of the exhaust structure, one of the door sill beams and the three-dimensional structure of the battery pack from another perspective;

[0027] Figure 7 yes Figure 5 A three-dimensional schematic diagram of the exhaust structure;

[0028] Figure 8 yes Figure 7 A schematic diagram of a three-dimensional structural breakdown of the exhaust structure;

[0029] Fig. 9 yes Figure 7 A schematic diagram of a three-dimensional structure of the exhaust structure from another perspective;

[0030] Fig.10 yes Fig. 9 A schematic diagram of a three-dimensional structural breakdown of the exhaust structure;

[0031] Fig.11 yes Fig.10 A schematic diagram of the three-dimensional structure of the thermal insulation sleeve;

[0032] Fig.12 yes Fig.10 A schematic diagram of the three-dimensional structure of the vibration damping member;

[0033] Fig.13 yes Fig.12 A schematic side view of a vibration damping member;

[0034] Fig.14 yes Fig.13 A cross-sectional view along line XIX-XIX;

[0035] Fig.15 It is a schematic diagram of the bottom structure of a vehicle provided by one embodiment of the utility model;

[0036] Fig.16 yes Fig.15 Schematic diagram of the structure of the vehicle chassis.

[0037] Explanation of reference numerals: 100, exhaust structure; 22, air inlet pipe; 24, air outlet pipe; 26, exhaust pipe; 262, first positioning groove; 27, first bellows; 28, second bellows; 40, heat insulation sleeve; 42, heat insulation tube; 422, first positioning portion; 424, second positioning groove; 44, end sleeve; 442, first sleeve ring; 444, second sleeve ring; 446, connecting ring; 50, positioning glue; 52, first glue; 522, second positioning portion; 524, third positioning groove; 54, second glue; 60, vibration damping member; 62, clamping portion; 64, vibration damping buckle; 642, connecting strip; 644, clamping strip; 645, clamping groove; 66, vibration damping portion; 200, vehicle chassis; 21 0. Door sill beam; 212. Second positioning member; 2121. Fixing strip; 2123. Top strip; 2124. Avoidance groove; 2125. First locking hole; 2127. Second locking hole; 214. Connecting frame; 2141. First fixing plate; 2142. Second through hole; 2143. Second fixing plate; 2145. Connecting plate; 220. Battery pack; 230. Battery pack housing; 240. Blade battery; 250. First positioning member; 251. Receiving groove; 252. Positioning strip; 254. Support strip; 255. Fixing groove; 256. Snap-in hole; 257. Support plate; 258. First through hole; 260. Vehicle frame; 300. Vehicle; 305. Exhaust hot end; 307. Muffler. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the reference to "embodiment" or "implementation method" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment or implementation method may be included in at least one embodiment of the present utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] The terms "first" and "second" appearing in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" refers to two or more, unless otherwise clearly and specifically defined. In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and defined, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, or it can be a detachable connection, or it can be connected in one piece; it can be a mechanical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] See also Figure 1-Figure 6One embodiment of the utility model provides a vehicle chassis 200, which includes two threshold beams 210, a battery pack 220 and an exhaust structure 100 located on opposite sides thereof, wherein the battery pack 220 includes a battery pack shell 230, a blade battery 240 disposed in the battery pack shell 230, and two first positioning members 250, the battery pack 220 is fixedly connected between the two threshold beams 210, and at least a portion of the exhaust structure 100 is disposed between one of the threshold beams 210 and the battery pack 220; specifically, the exhaust structure 100 is at least partially disposed between one of the threshold beams 210 and the corresponding first positioning member 250, and the spacing between one of the threshold beams 210 and the battery pack 220 is 50 cm to 80 cm, that is, the spacing between one of the threshold beams 210 and the battery pack 220 can be but is not limited to 50 cm, 55 cm, 60 cm, 65 cm, 70 cm, 75 cm or 80 cm, etc.

[0042] The exhaust structure 100 is used to exhaust the engine of the hybrid vehicle. The exhaust structure 100 includes an exhaust pipe 26 and a heat insulating sleeve 40 sleeved on the exhaust pipe 26. The heat insulating sleeve 40 is used for thermal isolation between the exhaust pipe 26 and the battery pack 220, that is, to prevent the heat on the exhaust pipe 26 from being transferred to the door sill beam 210 and the battery pack 220.

[0043] The exhaust structure 100 also includes a vibration damper 60 mounted on the heat insulation sleeve 40 . The exhaust structure 100 is connected to the door sill beam 210 and the battery pack 220 via the vibration damper 60 . The vibration damper 60 is used to reduce vibration transmitted from the exhaust pipe 26 to the door sill beam 210 and the battery pack 220 .

[0044] In this embodiment, the battery pack 220 includes a battery pack housing 230, a blade battery 240 disposed in the battery pack housing 230, and two first positioning members 250, the two first positioning members 250 are respectively fixed on opposite sides of the battery pack housing 230, and a receiving groove 251 is provided on the side of the first positioning member 250 away from the battery pack housing 230, the length direction of the receiving groove 251 is parallel to the length direction of the door sill beam 210, and at least part of the exhaust structure 100 is accommodated in the receiving groove 251. The battery pack housing 230 is also equipped with a power battery module, a cooling fan, a cable, a sensor, a controller, and a protection circuit. The battery pack housing 230 is used to protect the electronic devices inside it and prevent the electronic devices in the battery pack housing 230 from being damaged by external impact, vibration or moisture. At the same time, the first positioning member 250 has sufficient structural strength to support the weight of the entire vehicle and cope with potential collision situations; therefore, the material and design of the first positioning member 250 need to be strictly tested and verified to ensure that the first positioning member 250 can remain intact under various extreme conditions. The first positioning member 250 and the battery pack shell 230 may be fixedly connected by means of, but not limited to, snap-on, screw-on or welding; the first positioning member 250 and the battery pack shell 230 may also be integrally formed.

[0045] At least part of the exhaust structure 100 in the present invention is disposed between one of the threshold beams 210 and the battery pack 220, and the distance between one of the threshold beams 210 and the battery pack 220 is small. The exhaust structure 100 is accommodated in the distance between one of the threshold beams 210 and the battery pack 220 to reduce the space occupied by the exhaust structure 100 on the vehicle chassis 200, which is beneficial to the layout of other devices. Secondly, a heat insulation sleeve 40 is provided on the exhaust pipe 26 of the exhaust structure 100. When the exhaust structure 100 is exhausting, part of the heat of the hot gas is transferred to the exhaust pipe 26. The heat insulation sleeve 40 can thermally isolate the exhaust pipe 26 from the vehicle chassis, so that the heat insulation effect between the exhaust pipe 26 and the vehicle chassis is better.

[0046] like Figure 7-Figure 11As shown, the exhaust structure 100 further includes an air inlet pipe 22, an air outlet pipe 24, a first bellows 27 and a second bellows 28. The exhaust pipe 26 is arranged on one side of the vehicle chassis 200 of the hybrid vehicle. The first bellows 27 is connected between the air inlet pipe 22 and the exhaust pipe 26. The second bellows 28 is connected between the air outlet pipe 24 and the exhaust pipe 26. The air inlet pipe 22 is connected to the exhaust port of the engine. The exhaust structure 100 further includes a positioning glue 50. The heat insulating sleeve 40 is sleeved on the exhaust pipe 26. The positioning glue 50 is clamped by the heat insulating sleeve 40 and the exhaust pipe 26, so that the heat insulating sleeve 40 and the exhaust pipe 26 are connected and fixed to each other. The heat insulating sleeve 40 is used for heat insulation between the exhaust pipe 26 and the vehicle chassis. That is, when the exhaust pipe 26 is installed on the vehicle chassis, the heat insulating sleeve 40 heat isolates the exhaust pipe 26 from the vehicle chassis, thereby preventing the heat on the exhaust pipe 26 from being transferred to the vehicle chassis.

[0047] Optionally, the exhaust pipe 26 is a straight pipe, and at least one first positioning groove 262 is provided on the outer peripheral wall of the exhaust pipe 26. In this embodiment, two first positioning grooves 262 spaced apart from each other are provided on the outer peripheral wall of the exhaust pipe 26. The air inlet pipe 22 is connected to one end of the exhaust pipe 26 through the first bellows 27, and the first bellows 27 isolates the vibration of the air inlet pipe 22 and the exhaust pipe 26, so that the vibration transmission between the air inlet pipe 22 and the first bellows 27 is weakened; the air outlet pipe 24 is connected to the other end of the exhaust pipe 26 through the second bellows 28, and the second bellows 28 isolates the vibration of the air outlet pipe 24 and the exhaust pipe 26, so that the vibration transmission between the second bellows 28 and the air outlet pipe 24 is weakened. Further, the first bellows 27 is connected to the exhaust pipe 26 through an L-shaped pipe, and the second bellows 28 is connected to the exhaust pipe 26 through an L-shaped pipe. In this embodiment, the radial cross-section of the exhaust pipe 26 is circular, the air inlet pipe 22 extends to a side away from the battery pack housing 230 , and the air outlet pipe 24 extends to a side away from the battery pack housing 230 .

[0048] In other embodiments, the radial cross-section of the exhaust pipe 26 may be, but is not limited to, a rectangular ring, an elliptical ring, or a polygonal ring, etc. That is, the shape of the radial cross-section of the exhaust pipe 26 may be changed according to the requirements of the arrangement of the rocker beam 210 .

[0049] Optionally, the insulation sleeve 40 is an insulation tube that is sleeved outside the exhaust pipe 26, and the outer diameter of the exhaust pipe 26 is smaller than the inner diameter of the insulation sleeve 40; the insulation sleeve 40 can be but is not limited to a hard foam plastic tube, a glass wool tube, a ceramic fiber tube, etc.; the axial length of the insulation sleeve 40 is equal to the axial length of the exhaust pipe 26.

[0050] like Fig.10 and Fig.11As shown, the heat insulating sleeve 40 includes a heat insulating tube 42 and an end sleeve 44. The heat insulating tube 42 is sleeved on the outside of the exhaust pipe 26 by a positioning glue 50, and the end sleeve 44 is sleeved on the exhaust pipe 26 and fixedly connected to the end of the heat insulating tube 42. The outer peripheral wall of the heat insulating tube 42 is sunken into the inner cavity of the heat insulating tube 42 to form a first positioning portion 422, and a second positioning groove 424 is formed on the outer surface of the first positioning portion 422; when the heat insulating tube 42 is sleeved on the exhaust pipe 26, the first positioning portion 422 is opposite to the first positioning groove 262. In this embodiment, two first positioning portions 422 spaced apart from each other are provided on the outer peripheral wall of the heat insulating tube 42, and a second positioning groove 424 is formed on the outer surface of each first positioning portion 422. When the heat insulating tube 42 is sleeved on the exhaust pipe 26, the two first positioning portions 422 are opposite to the two first positioning grooves 262 respectively. The axial length of the heat insulating tube 42 is slightly equal to the axial length of the exhaust pipe 26, and the opposite ends of the heat insulating tube 42 are respectively sleeved with end sleeves 44. The end sleeves 44 include a first sleeve ring 442, a second sleeve ring 444 and a connecting ring 446, and the connecting ring 446 is connected between the first sleeve ring 442 and the second sleeve ring 444. The inner diameter of the first sleeve ring 442 is larger than the inner diameter of the second sleeve ring 444, and the inner diameter of the first sleeve ring 442 is equal to the outer diameter of the heat insulating tube 42, and the inner diameter of the second sleeve ring 444 is equal to or slightly larger than the outer diameter of the exhaust pipe 26.

[0051] In other embodiments, a plurality of thermal insulation sleeves are provided on the exhaust pipe 26, the axial length of each thermal insulation sleeve is smaller than the axial length of the exhaust pipe 26, and the plurality of thermal insulation sleeves 40 are spaced apart from each other along the axial direction of the exhaust pipe 26, and two adjacent thermal insulation sleeves may be fixedly connected by means of, but not limited to, a connecting sleeve, connecting glue or clamping.

[0052] like Figure 8 and Fig.10As shown, the positioning glue 50 is a heat-insulating material. In this embodiment, the positioning glue 50 is an aerogel. The positioning glue 50 includes a first colloid 52 and a second colloid 54. The radial cross-sections of the first colloid 52 and the second colloid 54 are both semicircular arcs. The first colloid 52 is attached to one side of the outer peripheral wall of the exhaust pipe 26, and the second colloid 54 is attached to the other side of the outer peripheral wall of the exhaust pipe 26, so that the positioning glue 50 wraps the exhaust pipe 26 to isolate the high temperature of the exhaust pipe 26. The outer peripheral wall of the first colloid 52 is sunken into the inner cavity of the first colloid 52 to form a second positioning portion 522, and a third positioning groove 524 is formed on the outer surface of the second positioning portion 522; when the positioning glue 50 is sleeved on the exhaust pipe 26, the second positioning portion 522 is positioned in the first positioning groove 262, and when the heat insulation tube 42 is sleeved on the positioning glue 50, the first positioning portion 422 is positioned in the third positioning groove 524, and the heat insulation tube 42 positions the heat insulation material and plays a heat insulation role at the same time. In this embodiment, two second positioning portions 522 spaced apart from each other are provided on the outer peripheral wall of the first colloid 52, and a third positioning groove 524 is formed on the outer surface of each second positioning portion 522. When the positioning rubber 50 is sleeved on the exhaust pipe 26, the two second positioning portions 522 are respectively positioned in the two first positioning grooves 262; when the insulation tube 42 is sleeved on the positioning rubber 50, the two first positioning portions 422 are respectively positioned in the two third positioning grooves 524.

[0053] Please also read Figure 8-Figure 10 and Figure 12-14 The shock absorber 60 is connected between the exhaust pipe 26 and the vehicle chassis, and the shock absorber 60 reduces the vibration on the exhaust pipe 26; the shock absorber 60 and the vehicle chassis are fixedly connected by the cooperation of a clamping part and a clamping hole, the clamping part is provided on one of the shock absorber 60 and the vehicle chassis, and the clamping hole is provided on the other of the shock absorber 60 and the vehicle chassis. Specifically, the shock absorber 60 is provided with a clamping part 62, the vehicle chassis is provided with a clamping hole, and the clamping part 62 is fixedly clamped to the clamping hole; or the shock absorber 60 is provided with a clamping hole, the vehicle chassis is provided with a clamping part, and the clamping part is fixedly clamped to the clamping hole. In this embodiment, the shock absorber 60 is provided with two clamping parts 62 on the side facing the vehicle chassis, the vehicle chassis is provided with two clamping holes, and the two clamping parts 62 are fixedly clamped to the two clamping holes respectively. The shock absorber 60 can be made of high temperature resistant material.

[0054] The vibration damping member 60 includes a vibration damping buckle 64 sleeved on the heat insulation sleeve 40 and a vibration damping portion 66 disposed on the outer peripheral wall of the vibration damping buckle 64, and the vibration damping portion 66 abuts against the vehicle chassis. Optionally, the vibration damping buckle 64 can be, but is not limited to, a C-shaped buckle, a round buckle or a U-shaped buckle. In the present embodiment, the vibration-damping buckle 64 is a C-shaped buckle. Specifically, the vibration-damping buckle 64 includes a connecting strip 642 and two clamping strips 644. The two clamping strips 644 are respectively connected to the opposite ends of the connecting strip 642. The connecting strip 642 and the two clamping strips 644 together form a C-shaped clamping groove 645. The clamping portion 62 is arranged on the side of the connecting strip 642 away from the clamping groove 645. A vibration-damping portion 66 is arranged on the side of each clamping strip 644 away from the connecting strip 642. A pit structure adapted to the vibration-damping portion 66 is provided on at least one of the threshold beam 210 and the battery pack 220, and the vibration-damping portion 66 and the pit structure are interference fitted. In the present embodiment, a pit structure is provided on the first positioning member 250 and the corresponding threshold beam 210. Each vibration-damping portion 66 is interference fitted with the corresponding pit structure, which increases stability and prevents the vibration-damping member 60 from falling off. Optionally, the vibration damping member 60 is required to have sufficiently low stiffness to play a vibration buffering role, thereby isolating the exhaust vibration transmission and reducing the impact on the vibration comfort inside the vehicle.

[0055] In other embodiments, two or more vibration-damping portions 66 are provided on the side of the clamping strip 644 facing away from the snap-in groove 645, and two or more recessed structures are provided on the first positioning member 250 or the corresponding threshold beam 210. The two or more vibration-damping portions 66 of each clamping strip 644 are respectively interference-fitted with the corresponding recessed structures to increase stability and prevent vibration from falling off.

[0056] Optionally, at least one vibration damper 60 is provided on the insulation sleeve 40. In the present embodiment, two vibration dampers 60 are provided on the insulation sleeve 40 at intervals from each other. Specifically, one vibration damper 60 is located at one end of the insulation sleeve 40, and the other vibration damper 60 is located at the other end of the insulation sleeve 40. The inner side of the vibration damper 60 is vulcanized integrally with the insulation sleeve 40 to prevent the vibration damper 60 from falling off the insulation sleeve 40 during use.

[0057] In other embodiments, three vibration dampers 60 are provided on the insulation sleeve 40, and the three vibration dampers 60 are arranged on the insulation sleeve 40 at intervals. Specifically, one of the vibration dampers 60 is located in the middle of the insulation sleeve 40, and the other two vibration dampers 60 are respectively located at opposite ends of the insulation sleeve 40.

[0058] In other embodiments, more than three vibration damping members 60 are disposed on the heat insulation sleeve 40 , and the more than three vibration damping members 60 are evenly spaced apart along the axial direction of the heat insulation sleeve 40 .

[0059] Please also read Figure 1-Figure 6The battery pack housing 230 is a rectangular box. The first positioning member 250 includes a rectangular positioning bar 252 and a support bar 254 connected to one side of the positioning bar 252. The receiving groove 251 is provided on the side of the support bar 254 facing the positioning bar 252. The positioning bar 252 is fixedly connected to the battery pack housing 230. The opposite ends of the receiving groove 251 pass through the opposite end surfaces of the support bar 254. A plurality of fixing grooves 255 are provided between the positioning bar 252 and the support bar 254. The plurality of fixing grooves 255 are arranged at intervals along the length direction of the positioning bar 252. Each fixing groove 255 is connected to the receiving groove 251. The support bar 254 is provided with a snap-in hole 256 corresponding to each fixing groove 255. A support sheet 257 is provided on one side of the support bar 254 away from the positioning bar 252 . The length direction of the support sheet 257 is parallel to the length direction of the receiving groove 251 . A plurality of first through holes 258 are provided on the support sheet 257 . The plurality of first through holes 258 are arranged at intervals along the length direction of the support sheet 257 .

[0060] Optionally, at least one of the vibration-damping buckle 64 and the battery pack 220 and the vibration-damping buckle 64 and the threshold beam 210 is connected via a clamping portion and a clamping hole; the threshold beam 210 is provided with a receiving groove on the side facing the first positioning member 250, the length direction of the receiving groove is parallel to the length direction of the threshold beam 210, and the exhaust structure 100 is accommodated in the receiving groove. Specifically, the threshold beam 210 is provided with a clamping hole connected to the receiving groove, the clamping portion 62 of the vibration-damping member 60 can be clamped in the clamping hole, and the vibration-damping portion 66 of the vibration-damping member 60 abuts against the threshold beam 210 and the first positioning member 250. In other embodiments, the threshold beam 210 is provided with a clamping portion protruding from the receiving groove, the vibration-damping member 60 is provided with a clamping hole, and the clamping portion is clamped in the clamping hole, so that the vibration-damping member 60 is fixedly connected to the threshold beam 210.

[0061] The threshold beam 210 includes a second positioning member 212 and a connecting frame 214. The second positioning member 212 is connected between the first positioning member 250 and the connecting frame 214. Specifically, the second positioning member 212 is connected to the side of the support bar 254 away from the positioning bar 252, and the exhaust structure 100 is clamped between the second positioning member 212 and the positioning bar 252. Further, the second positioning member 212 includes a rectangular fixing bar 2121 and a top bar 2123 connected to one side of the fixing bar 2121, and the top bar 2123 is perpendicular to the fixing bar 2121. The fixing bar 2121 is fixedly connected to the supporting sheet 257, that is, one side of the fixing bar 2121 is fixedly connected to the side of the support bar 254 away from the positioning bar 252, and the other side of the fixing bar 2121 is connected to the connecting frame 214. A plurality of avoidance grooves 2124 are provided on the top bar 2123, and the plurality of avoidance grooves 2124 are arranged at intervals along the length direction of the top bar 2123. The fixing strip 2121 is provided with a first locking hole 2125 and a second locking hole 2127 spaced apart from each other corresponding to each avoiding groove 2124. The first locking hole 2125 is located in the avoiding groove 2124, and the second locking hole 2127 is away from the side of the avoiding groove 2124. The side of the supporting strip 2123 facing the second locking hole 2127 is set as an inclined surface.

[0062] The connecting frame 214 includes a rectangular first fixing piece 2141, a second fixing piece 2143 and a connecting piece 2145. The first fixing piece 2141 is connected to one side of the connecting piece 2145, and the second fixing piece 2143 is connected to the other side of the connecting piece 2145. The first fixing piece 2141 is parallel to the second fixing piece 2143, and the first fixing piece 2141 is connected to the side of the supporting bar 254 away from the positioning bar 252. The connecting piece 2145 is inclined toward one side of the receiving groove 251, that is, the side of the connecting piece 2145 close to the first fixing piece 2141 is an inclined plate. The first fixing piece 2141 is provided with a plurality of second through holes 2142, and the plurality of second through holes 2142 are arranged at intervals along the length direction of the first fixing piece 2141.

[0063] like Figure 1-Figure 6As shown, when assembling the vehicle chassis 200, the positioning strips 252 of the two first positioning members 250 are respectively fixedly connected to the opposite sides of the battery pack shell 230. Specifically, the first positioning member 250 and the battery pack shell 230 can be fixed by but not limited to bolts; the two vibration dampers 60 are respectively sleeved on the opposite ends of the insulation sleeve 40, that is, the opposite ends of the insulation sleeve 40 are respectively inserted into the clamping grooves 645 of the two vibration dampers 60; the two vibration dampers 60 are respectively accommodated in the two fixing grooves 255 of the first positioning member 250, and the two clamping portions 62 of each vibration damper 60 are respectively clamped in the corresponding two clamping holes 256. The threshold beam 210 is fixedly connected to the first positioning member 250, and the exhaust structure 100 is clamped between the second positioning member 212 and the positioning strip 252 of the first positioning member 250; the side of the second positioning member 212 close to the abutting strip 2123 is placed on the support sheet 257 of the support strip 254, so that the multiple first locking holes 2125 are respectively opposite to the multiple first through holes 258, and the multiple locking members are respectively locked to the multiple first through holes 258 and the multiple first locking holes 2125, so that the side of the fixing strip 2121 of the second positioning member 212 close to the abutting strip 2123 is connected to the side of the first positioning member 250 away from the battery pack housing 230, and the abutting strip 2123 abuts the exhaust structure 100, and the abutting strip 2123 and the positioning strip 252 clamp the heat insulation sleeve 40 of the exhaust structure 100. The opposite ends of each vibration damping member 60 are respectively positioned in the corresponding fixing groove 255 and the avoidance groove 2124. The side of the fixing strip 2121 away from the butt strip 2123 is connected to the connecting frame 214. Specifically, the first fixing plate 2141 of the connecting frame 214 is placed on the front side of the fixing strip 2121, so that the multiple second through holes 2142 are respectively opposite to the multiple second locking holes 2127, and the multiple locking members are respectively locked to the multiple second through holes 2142 and the multiple second locking holes 2127, so that the connecting frame 214 is fixedly connected to the second positioning member 212, and the side of the connecting plate 2145 close to the first fixing plate 2141 is attached to the inclined surface of the butt strip 2123, and the connecting plate 2145 butts against the exhaust structure; the frame 260 is fixedly connected to the door sill beam 210, specifically, the second fixing plate 2143 is used to be fixedly connected to the frame 260. At this time, the battery pack shell 230 is fixedly connected between the two sill beams 210, forming a support for the vehicle chassis, becoming an integrated chassis of the battery pack 220, and can enhance the rigidity of the vehicle chassis 200; a gap is left between the battery pack shell 230 and one of the sill beams 210, and the gap is usually small, and the exhaust structure 100 is accommodated in the gap, that is, the exhaust structure 100 is located between one of the sill beams 210 and the battery pack shell 230, so as to reduce the space occupied by the exhaust structure 100 on the vehicle chassis 200, which is beneficial to the layout of other devices.

[0064] like Fig.15 and Fig.16As shown, the present application also provides a vehicle 300, which includes a frame 260, an exhaust hot end 305, a muffler 307 and a vehicle chassis 200, wherein the vehicle chassis 200 is connected to the frame 260, specifically, the sill beam 210 and the frame can be fixedly connected by, but not limited to, welding, screwing or clamping, and the battery pack housing 230 and the whole vehicle can be fixedly connected by, but not limited to, welding, screwing or clamping, and the exhaust structure 100 is located on one side of the frame 260, so as to realize the body integration of the vehicle and improve the torsional rigidity of the whole vehicle in the hybrid vehicle; the intake pipe 22 of the exhaust structure 100 is connected to the exhaust hot end 305, specifically, the exhaust hot end 305 is the engine; and the exhaust pipe 24 is connected to the muffler 307. When the vehicle 300 is running, the exhaust gas in the cylinder of the engine is discharged into the outside air through the intake pipe 22, the exhaust pipe 26, the exhaust pipe 24 and the muffler 307. Since the heat-insulating sleeve 40 is sleeved on the outside of the exhaust pipe 26 by the positioning glue 50, the exhaust pipe 26 can be thermally isolated from the battery pack shell 230 and the frame 260, and the heat insulation effect is better; secondly, the exhaust structure 100 is accommodated in the receiving groove 251 of the first positioning member 250 to reduce the space occupied by the vehicle chassis 200, which is beneficial to the layout of other devices such as batteries; in addition, since the battery pack shell 230 of the vehicle chassis 200 is connected between the two door sill beams 210, the two door sill beams 210 are connected to the frame 260, so that the chassis of the vehicle 300 is firm.

[0065] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the embodiments above is only used to help understand the method of the present invention and its core idea.

Claims

1. A vehicle chassis, characterized in that: The vehicle chassis includes two threshold beams located on opposite sides thereof, a battery pack, and an exhaust structure. The battery pack is fixedly connected between the two threshold beams. The exhaust structure is at least partially arranged between one of the threshold beams and the battery pack. The distance between one of the threshold beams and the battery pack is 50 cm to 80 cm.

2. The vehicle chassis according to claim 1, characterized in that: The exhaust structure comprises an exhaust pipe and a heat insulation sleeve sleeved on the exhaust pipe.

3. The vehicle chassis according to claim 2, characterized in that: The exhaust structure further includes a vibration damping member sleeved on the heat insulation sleeve, and the exhaust structure is connected to the door sill beam and the battery pack through the vibration damping member.

4. The vehicle chassis according to claim 3, characterized in that: The vibration-damping component comprises a vibration-damping buckle sleeved on the heat-insulating sleeve and a vibration-damping portion arranged on the outer peripheral wall of the vibration-damping buckle.

5. The vehicle chassis according to claim 4, characterized in that: A recessed pit structure matched with the vibration-damping part is provided on at least one of the door sill beam and the battery pack, and the vibration-damping part and the recessed pit structure are interference-fitted.

6. The vehicle chassis according to claim 4, characterized in that: At least one of the vibration-damping buckle and the battery pack and the vibration-damping buckle and the door sill beam is connected via a clamping portion and a clamping hole.

7. The vehicle chassis according to any one of claims 1 to 6, characterized in that: The exhaust structure further includes an air inlet pipe, an exhaust pipe, a first bellows, a second bellows and an air outlet pipe. The first bellows is connected between the air inlet pipe and the exhaust pipe, and the second bellows is connected between the air outlet pipe and the exhaust pipe.

8. The vehicle chassis according to any one of claims 3 to 6, characterized in that: The battery pack includes a battery pack shell and two first positioning members, the two first positioning members are respectively fixed on opposite sides of the battery pack shell, and a receiving groove is provided on the side of the first positioning member facing away from the battery pack shell. The length direction of the receiving groove is parallel to the length direction of the door sill beam, and at least part of the exhaust structure is accommodated in the receiving groove.

9. The vehicle chassis according to claim 8, characterized in that: The first positioning member includes a positioning bar and a supporting bar connected to one side of the positioning bar, the receiving groove is arranged on the side of the supporting bar facing the positioning bar, and the positioning bar is fixedly connected to the battery pack housing.

10. The vehicle chassis according to claim 9, characterized in that The threshold beam comprises a second positioning member, the second positioning member is connected to a side of the support bar away from the positioning bar, and the exhaust structure is clamped between the second positioning member and the positioning bar.

11. The vehicle chassis according to claim 10, characterized in that The second positioning member includes a fixing bar and a push bar connected to one side of the fixing bar; one side of the fixing bar is connected to a side of the support bar away from the positioning bar, and the push bar and the positioning bar clamp the heat insulation sleeve of the exhaust structure.

12. The vehicle chassis according to claim 11, characterized in that A support sheet is provided on one side of the support bar away from the positioning bar, the length direction of the support sheet is parallel to the length direction of the receiving groove, and the fixing bar is fixedly connected to the support sheet.

13. The vehicle chassis according to claim 11, characterized in that A fixing groove is arranged between the positioning bar and the supporting bar, a avoiding groove is arranged on the supporting bar, and opposite ends of the vibration damping member are respectively positioned at the fixing groove and the avoiding groove.

14. The vehicle chassis according to claim 13, characterized in that The threshold beam also includes a connecting frame, which includes a first fixing plate, a second fixing plate and a connecting plate, wherein the first fixing plate is connected to one side of the connecting plate, and the second fixing plate is connected to the other side of the connecting plate; the first fixing plate is parallel to the second fixing plate, the first fixing plate is connected to a side of the support bar away from the positioning bar, the connecting plate is inclined toward one side of the receiving groove, the connecting plate abuts against the exhaust structure, and the second fixing plate is used to be connected to the vehicle frame.

15. A vehicle, characterized in that: The vehicle comprises a vehicle frame and a vehicle chassis as described in any one of claims 1 to 14, wherein the vehicle chassis is connected to the vehicle frame.

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