Front chassis structure and vehicle

Abstract

The utility model provides a front chassis structure and a vehicle and relates to the technical field of automobile parts, the front chassis structure comprises a battery upper cover, a first cross beam assembly and a middle channel body, and the battery upper cover is used for being connected with the bottom of a vehicle body. The first cross beam assembly comprises a first cross beam body, the first cross beam body extends in the width direction of the vehicle body and is connected to the battery upper cover, and the first cross beam body is used for installing a front seat. One side of the middle channel body is connected with the first cross beam body, and the other side of the middle channel body is used for being connected with the front portion of a vehicle body. According to the front chassis structure, the battery upper cover and the vehicle body floor are integrated together, so that the vehicle weight can be reduced and the cost can be reduced on the premise of ensuring the strength of the vehicle body.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a front chassis structure and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the lightweighting of the entire vehicle has received more and more attention from the industry.

[0003] In the prior art, the battery pack is installed at the bottom of the center floor of the vehicle body on the chassis of mainstream new energy vehicles, and the center channel, seat crossbeams and other components are installed on the upper part of the center floor.

[0004] However, the center floor is used to bear weight and needs to have a certain thickness and weight. The battery pack shell is used to protect the internal battery cells and also needs to have a certain thickness and weight. Therefore, the weight reduction space for both is limited. When the battery pack is installed at the bottom of the center floor, the integration of the existing new energy vehicle chassis is still low, which does not meet the lightweight design requirements of the entire vehicle. Utility Model Content

[0005] Based on this, the utility model provides a front chassis structure and a vehicle to solve the problem that the existing new energy vehicle chassis has low integration and affects lightweight.

[0006] In a first aspect, the utility model provides a front chassis structure, comprising a battery upper cover, a first crossbeam assembly and a middle channel body, wherein the battery upper cover is used to be connected to the bottom of a vehicle body;

[0007] The first cross beam assembly includes a first cross beam body, the first cross beam body extends along the width direction of the vehicle body and is connected to the battery upper cover, and the first cross beam body is used to install the front seat;

[0008] One side of the middle channel body is connected to the first cross beam body, and the other side of the middle channel body is used to be connected to the front part of the vehicle body.

[0009] In a possible implementation, the first cross beam body has a first connection portion, and the side of the middle channel body facing the first cross beam body has a second connection portion matching the first connection portion, and the second connection portion is detachably connected to the first connection portion.

[0010] In a possible implementation, the first crossbeam assembly further includes a first connecting member and a second connecting member that match each other, and the first crossbeam body has a first cavity;

[0011] The first connection portion is a first connection hole communicating with the first cavity, and the second connection portion is a second connection hole matching the first connection hole, and the second connection hole is aligned with the first connection hole;

[0012] The first connecting member is disposed in the first cavity, and one of the second connecting member and the first connecting member is fastened to the other through the first connecting hole and the second connecting hole.

[0013] In one possible implementation, at least one transverse partition is disposed in the first cavity, and the upper and lower surfaces of the transverse partition are both connected to first vertical partitions, and the positions of the first vertical partition located on the upper surface of the transverse partition and the first vertical partition located on the lower surface of the transverse partition are staggered with each other to divide the first cavity into several first chambers.

[0014] In a possible implementation, the first cross beam assembly further includes a plurality of seat mounting brackets spaced apart and distributed along an extension direction of the first cross beam body, and the first cross beam body has a third connecting portion;

[0015] The bottom of the seat mounting bracket has a fourth connecting portion, which is connected to the third connecting portion;

[0016] The seat mounting bracket is also provided with a fifth connecting portion, and the fifth connecting portion is used for connecting with the bottom of the front seat.

[0017] In a possible implementation, a second crossbeam assembly is further included, the second crossbeam assembly includes a second crossbeam body, the second crossbeam body is arranged side by side with the first crossbeam body on a side away from the middle channel body, and is connected to the battery upper cover;

[0018] The second cross beam body is provided with a sixth connecting portion, and the sixth connecting portion is used to be connected to the bottom of the front seat.

[0019] In a possible implementation, the second cross beam body has a second cavity, and a plurality of second vertical partitions are arranged side by side in the second cavity to divide the second cavity into a plurality of second chambers;

[0020] The upper surface of a portion of the second cross beam body that is away from the first cross beam body is inclined toward the rear and lower side of the vehicle body.

[0021] In a possible implementation, the second crossbeam assembly further includes a reinforcing connector, and at least part of the end of the second cavity is provided with the reinforcing connector.

[0022] In a possible implementation, a plurality of connection grooves are provided on the second beam body near the end, the connection grooves are communicated with the adjacent second chambers, and the reinforcing connector is welded to the second beam body through the connection grooves.

[0023] In a second aspect, the utility model further provides a vehicle, comprising a vehicle body, on which any one of the front chassis structures provided in the first aspect is arranged.

[0024] The utility model provides a front chassis structure and a vehicle, the front chassis structure includes a battery cover, a first crossbeam assembly and a middle channel body. By setting the battery cover to be connected to the bottom of the vehicle body, the battery cover is used as a floor function to reduce the weight of the vehicle. Among them, the first crossbeam assembly includes a first crossbeam body, the first crossbeam body extends along the width direction of the vehicle body and is connected to the battery cover, so that the front seat is installed on the first crossbeam body. By connecting one side of the middle channel body to the first crossbeam body and the other side of the middle channel body to the front of the vehicle body, the weight of the vehicle is reduced under the premise of meeting the longitudinal strength. Therefore, the front chassis structure provided by the utility model improves the integration of the chassis by integrating the battery cover with the vehicle body floor, and can reduce the weight of the vehicle and reduce costs under the premise of ensuring the strength of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A partial structural schematic diagram of a front chassis structure provided by an embodiment of the utility model;

[0027] Figure 2 for Figure 1 A cross-sectional view of the connection structure between the middle channel body and the first crossbeam assembly;

[0028] Figure 3 for Figure 1 Sectional view along section AA;

[0029] Figure 4 for Figure 1 A schematic diagram of the structure of the middle seat mounting bracket;

[0030] Figure 5 for Figure 1 an exploded view of a second cross member assembly;

[0031] Figure 6 for Figure 1 A partial side view of the connection relationship between the second crossbeam assembly and the battery cover.

[0032] Reference numerals:

[0033] 100: battery cover;

[0034] 110: upper cover connection portion;

[0035] 200: first beam assembly;

[0036] 210: first beam body;

[0037] 211: first connecting portion;

[0038] 212: first cavity;

[0039] 213: diaphragm;

[0040] 214: first vertical partition;

[0041] 215: third connecting portion;

[0042] 220: first connecting member;

[0043] 230: second connecting member;

[0044] 240: Seat mounting bracket;

[0045] 241: fourth connecting portion;

[0046] 242: fifth connecting portion;

[0047] 300: Middle channel body;

[0048] 310: second connection portion;

[0049] 400: second crossbeam assembly;

[0050] 410: second crossbeam body;

[0051] 411: sixth connecting portion;

[0052] 412: second cavity;

[0053] 413: Second vertical partition;

[0054] 414: connection slot;

[0055] 420: Strengthening connector;

[0056] 430: End plate. DETAILED DESCRIPTION

[0057] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of methods and devices consistent with some aspects of the utility model as detailed in the attached claims.

[0058] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here, for example, can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0059] As mentioned in the background technology, in the floor assembly of some new energy vehicles, the center floor, center channel, seat mounting beam, door sill inner plate, etc. are connected as a whole by spot welding, and the battery pack is installed under the center floor. However, the center floor plays a load-bearing role, and it is a plate with a certain thickness and weight. The battery pack shell also needs to protect the internal battery cells, and it also has a certain thickness and weight. When the battery pack is installed to the bottom of the center floor, the battery pack shell and the center floor each have limited weight reduction space, resulting in limited weight reduction space for the entire vehicle. That is, the integration between the center floor and the battery pack is still not high, and there is still room for optimization of lightweight design.

[0060] In view of the above-mentioned problems existing in the prior art, the utility model provides a front chassis structure and a vehicle. The front chassis structure provided by the utility model includes a battery cover, a first crossbeam assembly and a middle channel body. By setting the battery cover to be connected to the bottom of the vehicle body, the battery cover is used as a floor function to reduce the weight of the vehicle. Among them, the first crossbeam assembly includes a first crossbeam body, which extends along the width direction of the vehicle body and is connected to the battery cover to install the front seat on the first crossbeam body. By connecting one side of the middle channel body to the first crossbeam body and connecting the other side of the middle channel body to the front of the vehicle body, the weight of the vehicle is reduced while meeting the longitudinal strength. By integrating the battery cover with the vehicle body floor, the integration of the chassis is improved. On the premise of ensuring the strength of the vehicle body, the weight of the vehicle can be reduced and the cost can be reduced.

[0061] Hereinafter, exemplary application scenarios of the embodiments of the present utility model are introduced.

[0062] The front chassis structure provided by the utility model can be applied to new energy vehicle models, including light vehicles such as sedans, pickup trucks, multi-purpose vehicles (MPVs), and off-road vehicles (SUVs) with battery packs. In this way, by integrating the battery cover with the vehicle body floor, the integration is improved while ensuring the strength of the vehicle body, which can reduce the weight of the vehicle and reduce costs.

[0063] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0064] First, refer to Figure 1-Figure 6 As shown, the front chassis structure provided in this embodiment includes a battery cover 100, a first cross beam assembly 200 and a middle channel body 300, and the battery cover 100 is used to connect with the bottom of the vehicle body.

[0065] The first cross beam assembly 200 includes a first cross beam body 210 . The first cross beam body 210 extends along the width direction of the vehicle body and is connected to the battery upper cover 100 . The first cross beam body 210 is used for installing the front seat.

[0066] One side of the middle channel body 300 is connected to the first cross beam body 210 , and the other side of the middle channel body 300 is used to be connected to the front part of the vehicle body.

[0067] In this embodiment, the battery cover 100 may be a plate-like structure with a certain load-bearing capacity, and its area is adapted to the vehicle body floor. The periphery of the battery cover 100 may be connected to the bottom of the vehicle body by screwing, riveting, welding, etc.

[0068] The first crossbeam body 210 is used to install the front seats and play a certain bearing role in the width direction of the vehicle body. The first crossbeam body 210 can be an integrally formed profile structure. The first crossbeam body 210 can be connected to the battery cover 100 by screwing, riveting, welding, etc., and the upper part of the first crossbeam body 210 can be connected to the front seats by screwing, riveting, welding, etc., thereby completing the installation of the front seats.

[0069] The middle channel body 300 is used to transmit force along the longitudinal direction of the vehicle body to ensure the longitudinal anti-collision performance. The rear end of the middle channel body 300 can be connected to the approximate middle position of the first crossbeam body 210 by screwing, riveting, welding, etc., and the front end of the middle channel body 300 can also be connected to the front of the vehicle body (such as the front panel) by screwing, riveting, welding, etc.

[0070] It can be understood that, compared with the structure of the prior art in which the floor and the battery pack are separately arranged, the application of the front chassis structure in the present embodiment eliminates the existing middle floor and part of the middle channel, and integrates the battery cover 100 with the vehicle body floor, that is, the battery cover 100 serves as the middle floor, and a connected first crossbeam body 210 and a middle channel body 300 are arranged thereon, the lateral strength of the vehicle body is ensured by the first crossbeam body 210, and the longitudinal strength of the vehicle body is ensured by the middle channel body 300, thereby improving the integration of the front chassis, reducing the vehicle weight, and reducing costs.

[0071] Therefore, the front chassis structure provided in this embodiment includes a battery cover 100, a first crossbeam assembly 200 and a middle channel body 300. By setting the battery cover 100 to be connected to the bottom of the vehicle body, the battery cover 100 is used as a floor function to reduce the weight of the vehicle. Among them, the first crossbeam assembly 200 includes a first crossbeam body 210, which extends along the width direction of the vehicle body and is connected to the battery cover 100 to install the front seat on the first crossbeam body 210. By connecting one side of the middle channel body 300 with the first crossbeam body 210 and connecting the other side of the middle channel body 300 with the front of the vehicle body, the weight of the vehicle is reduced under the premise of meeting the longitudinal strength. By integrating the battery cover 100 with the vehicle body floor, the integration of the chassis is improved, and the weight of the vehicle can be reduced and the cost can be reduced under the premise of ensuring the strength of the vehicle body.

[0072] In one possible design, Figure 2 As shown, in this embodiment, the first beam body 210 has a first connection portion 211, and the side of the middle channel body 300 facing the first beam body 210 has a second connection portion 310 matching the first connection portion 211, and the second connection portion 310 is detachably connected to the first connection portion 211.

[0073] In this way, the middle channel body 300 and the first cross beam body 210 can be connected via the second connection portion 310 and the first connection portion 211 , such as by screwing, riveting, or clamping, so as to facilitate single-piece manufacturing and assembly.

[0074] Specifically, in this embodiment, the first crossbeam assembly 200 may further include a first connecting member 220 and a second connecting member 230 that match each other, and the first crossbeam body 210 has a first cavity 212. The first connecting portion 211 is a first connecting hole that communicates with the first cavity 212, and the second connecting portion 310 is a second connecting hole that matches the first connecting hole, and the second connecting hole is aligned with the first connecting hole. The first connecting member 220 is disposed in the first cavity 212, and one of the second connecting member 230 and the first connecting member 220 is fastened to the other through the first connecting hole and the second connecting hole.

[0075] For example, Figure 2 As shown, the first connecting member 220 can be a nut, and the second connecting member 230 can be a bolt that matches it. When the bolt and the nut are connected and tightened, the second connecting portion 310 on the central channel body 300 can be fixedly connected to the first connecting portion 211 of the first cross beam body 210, which is convenient for installation. Among them, a number of first connecting holes and second connecting holes can be evenly arranged along the width direction of the vehicle body. Accordingly, the connection is made through a corresponding number of bolts and nuts, so that the force-bearing surface is larger and the connection strength is greater. Moreover, in order to facilitate the delivery of multiple nuts to the first cavity 212 at one time, multiple nuts can be pre-arranged and fixed on the same positioning plate to form a nut plate, and then delivered to the first cavity 212 together and aligned with the first connecting hole.

[0076] Of course, the first connecting member 220 may also be a bolt, and the second connecting member 230 may be a nut matched therewith, which is not shown in the figure. In this way, the bolt and the nut can also be connected and tightened. Moreover, the second connecting member 230 and the first connecting member 220 may also be replaced by other types of fasteners, such as rivets, etc., which are not too limited in this embodiment.

[0077] In order to reduce the weight of the first beam body 210 while ensuring its bearing capacity, in the present embodiment, at least one transverse partition 213 is arranged in the first cavity 212, and the upper and lower surfaces of the transverse partition 213 are both connected to the first vertical partition 214, and the positions of the first vertical partition 214 located on the upper surface of the transverse partition 213 and the first vertical partition 214 located on the lower surface of the transverse partition 213 are staggered with each other to divide the first cavity 212 into a plurality of first chambers.

[0078] Specifically, Figure 2 , Figure 3 As shown, a transverse partition 213 is arranged in the first cavity 212, and a first vertical partition 214 is arranged on the upper surface of the transverse partition 213, and two first vertical partitions 214 are arranged on the lower surface of the transverse partition 213, and the first vertical partition 214 on the upper surface of the transverse partition 213 and the two first vertical partitions 214 on the lower surface of the transverse partition 213 are arranged in a staggered manner. In this way, the weight of the first crossbeam body 210 is reduced while its bearing capacity is improved, and the staggered arrangement can accommodate a small amount of deformation of the partition, thereby ensuring the stability of the first crossbeam body 210.

[0079] Of course, more transverse partitions 213 and first vertical partitions 214 may be provided, and their specific number and separation positions may be determined according to actual needs. Moreover, other types of reinforcement structures may be provided in the first cavity 212 to facilitate the installation of the first connecting member 220, which is not specifically limited in this embodiment.

[0080] In order to meet the installation requirements of the front seats, in this embodiment, the first cross beam assembly 200 may further include a plurality of seat mounting brackets 240 spaced apart and distributed along the extension direction of the first cross beam body 210, and the first cross beam body 210 has a third connecting portion 215. The bottom of the seat mounting bracket 240 has a fourth connecting portion 241, which is connected to the third connecting portion 215. The seat mounting bracket 240 also has a fifth connecting portion 242, which is used to connect to the bottom of the front seat.

[0081] Specifically, Figure 3 , Figure 4 As shown, the seat mounting bracket 240 can be used to raise the height of the front part of the front seat. The seat mounting bracket 240 is a shell-shaped structure. The fourth connecting portion 241 is provided on the peripheral side of the seat mounting bracket 240. The third connecting portion 215 corresponding thereto is provided on the first cross beam body 210. The fourth connecting portion 241 and the third connecting portion 215 can be connected by screwing, clamping, welding, riveting, etc. Moreover, the fifth connecting portion 242 can also be connected to the front side of the bottom of the front seat by screwing, clamping, welding, riveting, etc.

[0082] The fourth connection part 241 may be a plurality of fourth connection holes arranged on the periphery of the seat mounting bracket 240, the third connection part 215 may be a plurality of third connection holes arranged on the first cross beam body 210 and connected to the first cavity 212, the third connection holes correspond to the fourth connection holes one by one, and the third connection holes and the fourth connection holes may be connected by bolts, nuts, rivets, etc. The fifth connection part 242 may be a fifth connection hole, and a nut may be arranged at the fifth connection hole by spot welding or riveting, so that the front side of the bottom of the front seat is connected and fixed with the nut by bolts. Moreover, each front seat may correspond to two seat mounting brackets 240.

[0083] Of course, the third connection portion 215 , the fourth connection portion 241 and the fifth connection portion 242 may all be replaced by other types of connection structures, which are not specifically limited in this embodiment.

[0084] In order to ensure the stability of the front seat installation and the lateral strength of the vehicle body, in this embodiment, a second cross beam assembly 400 is further included, and the second cross beam assembly 400 includes a second cross beam body 410, which is arranged side by side with the first cross beam body 210 on a side away from the middle channel body 300 and connected to the battery cover 100. The second cross beam body 410 has a sixth connecting portion 411, which is used to connect to the bottom of the front seat.

[0085] Specific, combined Figure 1 , Figure 3 , Figure 5 , Figure 6As shown, the second cross beam body 410 can be connected to the battery cover 100 by welding, screwing, riveting, etc. The second cross beam body 410 has a sixth connection portion 411, which can be a sixth connection hole. A nut can be arranged at the sixth connection hole so that the rear side of the bottom of the front seat can be connected and fixed with the nut by bolts. The rear side of the bottom of the front seat is directly fixed to the second cross beam body 410 to meet the installation requirements of height restrictions. Moreover, each front seat can correspond to two sixth connection portions 411.

[0086] Furthermore, in this embodiment, the second cross beam body 410 has a second cavity 412, and a plurality of second vertical partitions 413 are arranged side by side in the second cavity 412 to divide the second cavity 412 into a plurality of second chambers. The upper surface of the second cross beam body 410, which is away from the first cross beam body 210, is inclined toward the rear and lower side of the vehicle body.

[0087] Specifically, Figure 3 As shown, two second vertical partitions 413 are arranged side by side in the second cavity 412 to divide the second cavity 412 into three second chambers, thereby ensuring the vertical compressive strength of the second cross beam body 410. Of course, a larger number of second vertical partitions 413 may be provided, and the specific number, separation position, etc. of the second vertical partitions 413 may be determined according to actual needs, and are not specifically limited in this embodiment.

[0088] In addition, the upper surface of the second cross beam body 410 that is away from the first cross beam body 210 is inclined toward the lower rear of the vehicle body, so that a flared shape toward the rear of the vehicle is formed between the upper surface of the second cross beam body 410 and the bottom of the front seat, which meets the arrangement of the air supply duct and thus meets the air supply requirement toward the rear floor, so as to ensure the comfort of the rear passengers.

[0089] In order to further increase the strength at both ends of the second beam body 410 , in this embodiment, the second beam assembly 400 may further include a reinforcing connector 420 , and the reinforcing connector 420 is inserted into at least part of the end of the second cavity.

[0090] For example, Figure 5 As shown, the reinforcing connector 420 can be a hollow or solid reinforcing component, and the shape of the reinforcing component matches each second cavity, so as to facilitate the insertion of the reinforcing component into the second cavity. The reinforcing components are respectively inserted into the second cavities near the front and rear of the vehicle at the ends of the second cross beam body 410, and the two ends of the second cross beam body 410 are locally reinforced, thereby improving the structural strength and avoiding the second cross beam body 410 from contacting with the door sill beam and causing tearing and deformation during a side collision, which causes the side collision battery pack to intrude beyond the standard. The reinforcing connector 420 and the second cross beam body 410 can be connected by welding, screwing, clamping, riveting, etc.

[0091] Furthermore, in this embodiment, a plurality of connection grooves 414 are provided on the second beam body 410 near the end, the connection grooves 414 are communicated with the adjacent second chamber, and the reinforcing connector 420 is welded to the second beam body 410 via the connection grooves 414 .

[0092] For example, Figure 5 As shown, the connection groove 414 is used to accommodate solder and to fix the reinforcing connector 420 to the second beam body 410. The connection groove 414 may be in the shape of a strip, a waist, a round hole, etc., and may be provided in plurality along the extension direction of the second beam body 410. Moreover, in order to ensure that the positions of the reinforcing connectors 420 inserted into the second cavity are consistent, positioning holes may be provided near the end of the second beam body 410 and on the reinforcing connector 420. After the reinforcing connector 420 is inserted into the second cavity, the positioning holes of the two may be aligned and then a positioning pin may be inserted for positioning.

[0093] In addition, if Figure 5 As shown, if the reinforcing connector 420 is a hollow reinforcing component, the second crossbeam assembly 400 may further include an end plate 430, which is connected to and sealed at the end of the reinforcing connector 420. In this way, the flatness of the end of the reinforcing connector 420 is ensured, wherein the end plate 430 and the reinforcing connector may also be connected by welding, screwing, clamping, riveting, etc.

[0094] In a second aspect, an embodiment of the utility model further provides a vehicle, including a vehicle body, on which the front chassis structure provided by any of the above embodiments is arranged.

[0095] Among them, the front chassis structure has been described in detail in the above embodiments and will not be described in detail here.

[0096] It is understandable that the battery upper cover 100 has an upper cover connection portion 110 on its circumferential side, and the bottom of the vehicle body has a vehicle body connection portion matching the upper cover connection portion 110 , and the vehicle body connection portion is connected to the upper cover connection portion 110 .

[0097] Exemplarily, the upper cover connection part 110 may be a connection bolt, and correspondingly, the body connection part may be a connection screw hole, so that the connection bolt is connected to the connection screw hole to achieve the connection and fixation between the battery upper cover 100 and the upper cover connection part 110. Of course, the body connection part and the upper cover connection part 110 may also be other types of connection structures, and the surrounding side of the battery upper cover 100 may also be provided with a reinforcement structure, such as a reinforcement frame, etc., which is not specifically limited in this embodiment.

[0098] The vehicle provided by the embodiment of the utility model comprises a battery cover 100, a first crossbeam assembly 200 and a middle channel body 300 by configuring a front chassis structure. The battery cover 100 is connected to the bottom of the vehicle body and the battery cover 100 is used as a floor function to reduce the weight of the vehicle. Among them, the first crossbeam assembly 200 comprises a first crossbeam body 210, which extends along the width direction of the vehicle body and is connected to the battery cover 100, so as to install the front seat on the first crossbeam body 210. By connecting one side of the middle channel body 300 with the first crossbeam body 210 and connecting the other side of the middle channel body 300 with the front of the vehicle body, the weight of the vehicle is reduced under the premise of meeting the longitudinal strength. By integrating the battery cover 100 with the vehicle body floor, the integration of the chassis is improved, and the weight of the vehicle can be reduced and the cost can be reduced under the premise of ensuring the strength of the vehicle body.

[0099] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

[0100] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A front chassis structure, characterized in that: It includes a battery upper cover, a first crossbeam assembly and a middle channel body, wherein the battery upper cover is used to be connected to the bottom of the vehicle body; The first cross beam assembly includes a first cross beam body, the first cross beam body extends along the width direction of the vehicle body and is connected to the battery upper cover, and the first cross beam body is used to install the front seat; One side of the middle channel body is connected to the first cross beam body, and the other side of the middle channel body is used to be connected to the front part of the vehicle body.

2. The front chassis structure according to claim 1, characterized in that: The first cross beam body has a first connection portion, and the middle channel body has a second connection portion matching the first connection portion on one side facing the first cross beam body, and the second connection portion is detachably connected to the first connection portion.

3. The front chassis structure according to claim 2, characterized in that: The first crossbeam assembly further comprises a first connecting member and a second connecting member matched with each other, and the first crossbeam body has a first cavity therein; The first connection portion is a first connection hole communicating with the first cavity, the second connection portion is a second connection hole matching the first connection hole, and the second connection hole is aligned with the first connection hole; The first connecting member is disposed in the first cavity, and one of the second connecting member and the first connecting member is fastened to the other through the first connecting hole and the second connecting hole.

4. The front chassis structure according to claim 3, characterized in that: At least one transverse partition is arranged in the first cavity, and the upper surface and lower surface of the transverse partition are both connected to the first vertical partition, and the positions of the first vertical partition located on the upper surface of the transverse partition and the first vertical partition located on the lower surface of the transverse partition are staggered with each other to divide the first cavity into a plurality of first chambers.

5. The front chassis structure according to claim 1, characterized in that: The first cross beam assembly further includes a plurality of seat mounting brackets spaced apart along an extending direction of the first cross beam body, and the first cross beam body has a third connecting portion; The bottom of the seat mounting bracket has a fourth connecting portion, and the fourth connecting portion is connected to the third connecting portion; The seat mounting bracket also has a fifth connecting portion, and the fifth connecting portion is used to be connected to the bottom of the front seat.

6. The front chassis structure according to any one of claims 1 to 5, characterized in that: It also includes a second crossbeam assembly, the second crossbeam assembly includes a second crossbeam body, the second crossbeam body is arranged side by side with the first crossbeam body on a side away from the middle channel body, and is connected to the battery upper cover; The second cross beam body has a sixth connecting portion, and the sixth connecting portion is used to be connected to the bottom of the front seat.

7. The front chassis structure according to claim 6, characterized in that: The second cross beam body has a second cavity, and a plurality of second vertical partitions are arranged side by side in the second cavity to divide the second cavity into a plurality of second chambers; A portion of the upper surface of the second cross beam body, which is away from the first cross beam body, is inclined toward the rear and lower side of the vehicle body.

8. The front chassis structure according to claim 7, characterized in that: The second crossbeam assembly further includes a reinforcing connector, and the reinforcing connector is inserted into at least part of the end of the second cavity.

9. The front chassis structure according to claim 8, characterized in that: A plurality of connection grooves are provided on the second cross beam body near the end portion, the connection grooves are communicated with the adjacent second chambers, and the reinforcing connector is welded to the second cross beam body through the connection grooves.

10. A vehicle, characterized in that: It comprises a vehicle body, on which the front chassis structure according to any one of claims 1 to 9 is arranged.

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