A front subframe mounting structure, a vehicle body structure, and a vehicle

Abstract

The embodiment of the application provides a front subframe mounting structure, a vehicle body structure and a vehicle, which comprise: a front wall; a longitudinal beam; a first enclosing component, the top of which is connected with the front wall, and the side thereof is connected with the longitudinal beam; the first enclosing component, the front wall and the longitudinal beam form a first cavity structure; a second enclosing component, the top of which is connected with the side of the first enclosing component away from the front wall, the side thereof is connected with the longitudinal beam, and the bottom thereof is connected with a front subframe; the second enclosing component, the first enclosing component and the longitudinal beam form a second cavity structure; and a connecting piece is arranged in the second cavity structure and connected with the first cavity structure through the second cavity structure. The first cavity structure and the second cavity structure provide support along the height direction of the vehicle. The connecting piece is used for connecting the first cavity structure and the second cavity structure, the first cavity structure and the second cavity structure jointly bear the load, and the strength and fatigue durability performance can be improved by avoiding single-cavity pressure bearing.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a front subframe mounting structure, a vehicle body structure, and a vehicle. Background Technology

[0002] The subframe is a crucial component of a vehicle's structure, connecting the chassis suspension system to the body. It effectively isolates road and engine vibrations, and reduces direct noise transmission into the passenger compartment. However, current technologies often use only threaded pipes and other connectors for the subframe's mounting structure, resulting in relatively weak overall strength and fatigue durability. Utility Model Content

[0003] This application provides a front subframe mounting structure, a vehicle body structure, and a vehicle, aiming to improve the problem of weak strength and fatigue durability of the subframe mounting structure.

[0004] A front subframe mounting structure, comprising: Front bulkhead; longitudinal beams; The first enclosure component is connected to the front bulkhead at the top and to the longitudinal beam at the side; the first enclosure component, the front bulkhead, and the longitudinal beam enclose to form a first cavity structure; The second enclosure component is connected at the top to the side of the first enclosure component away from the front bulkhead, at the side to the longitudinal beam, and at the bottom to the front subframe; the second enclosure component, the first enclosure component, and the longitudinal beam enclose and form a second cavity structure. A connector is disposed in the second cavity structure and passes through the second cavity structure to connect to the first cavity structure.

[0005] In this embodiment, the first enclosure component, the front bulkhead, and the longitudinal beams enclose a first cavity structure; the second enclosure component, the first enclosure component, and the longitudinal beams enclose a second cavity structure; and the front subframe is mounted on the second cavity structure. That is, after the front subframe is installed, the first and second cavity structures provide support along the vehicle height direction for the subframe. Furthermore, the first and second cavity structures are connected by connectors, allowing them to jointly bear the load, avoiding single-cavity pressure and thus improving strength and fatigue durability.

[0006] In some embodiments, the longitudinal beam includes a right longitudinal beam and a left longitudinal beam, and the first enclosure component includes: The upper reinforcing plate extends laterally along the vehicle, with one end connected to the right longitudinal beam and the other end connected to the left longitudinal beam, and the top connected to the front bulkhead; the upper reinforcing plate, the front bulkhead, and the longitudinal beam together form a first cavity structure.

[0007] In this embodiment, the upper reinforcing plate, the front bulkhead, and the longitudinal beam form a first cavity structure. The first cavity structure bears part of the load, thereby reducing the load on the connector, improving the stiffness and strength of the connector, preventing the connector from being pulled off, and thus improving the overall strength and fatigue durability.

[0008] In some embodiments, the first enclosure component further includes: The central channel plate is connected to the front bulkhead at the top and to the upper reinforcing plate at the bottom. The central channel plate, the front bulkhead, and the upper reinforcing plate form an upper crossbeam structure.

[0009] In this embodiment, the central channel plate, the upper reinforcing plate, and the front bulkhead form a supporting upper crossbeam, thereby providing support for the vehicle in the lateral direction and improving the strength and rigidity along the lateral direction of the vehicle.

[0010] In some embodiments, the longitudinal beam includes a right longitudinal beam and a left longitudinal beam. The second cavity structure includes a left cavity structure and a right cavity structure; the second enclosing component includes: The left main mounting plate of the front subframe is connected to the left longitudinal beam on the side and to the first cavity structure on the top. The left main mounting plate of the front subframe, the left longitudinal beam and the first cavity structure together form the left cavity structure. The right main mounting plate of the front subframe is connected to the right longitudinal beam on the side and to the first cavity structure on the top. The right main mounting plate of the front subframe, the right longitudinal beam and the first cavity structure together form the right cavity structure.

[0011] In this embodiment, the left main mounting plate of the front subframe, the left longitudinal beam, and the first cavity structure enclose the left cavity structure to form a left cavity structure, which bears the load of the left side of the subframe. The right main mounting plate of the front subframe, the right longitudinal beam, and the first cavity structure enclose the right cavity structure, which bears the load of the right side of the subframe. The cavity structures on both sides bear part of the load, distributing the load to each part, thereby reducing the load on the connecting parts, improving the stiffness and strength of the connecting parts, and thus improving the overall strength and fatigue durability.

[0012] In some embodiments, the second enclosure component further includes: A reinforcing tube beam is located between the right cavity structure and the left cavity structure.

[0013] This embodiment of the application provides support for the vehicle in the lateral direction by setting up a reinforced tube beam to support the right cavity structure and the left cavity structure, thereby improving the strength and stiffness in the lateral direction of the vehicle.

[0014] In some embodiments, the connector includes: Connector body, The structure is disposed in the right cavity structure, passes through the right cavity structure and connects to the first cavity structure, and is disposed in the left cavity structure, passes through the left cavity structure and connects to the first cavity structure; A longitudinal partition is provided in the right cavity structure along the vehicle longitudinal direction, and a longitudinal partition is provided in the left cavity along the vehicle longitudinal direction.

[0015] In this embodiment, the first cavity structure and the second cavity structure are connected by a threaded pipe body, so that the first cavity structure and the second cavity structure jointly bear the load along the vehicle height direction, avoiding pressure on a single cavity and thus improving strength and fatigue durability; by setting longitudinal partitions, the left and right cavity structures can bear the load along the vehicle longitudinal direction, further improving strength and fatigue durability.

[0016] In some embodiments, the connector further includes: The lower left reinforcing plate is arranged longitudinally along the vehicle in the left cavity structure and is connected to the first cavity structure; the longitudinal partition and the lower left reinforcing plate are located on both sides of the connector body; The lower right reinforcing plate is arranged longitudinally along the vehicle in the right cavity structure and is connected to the first cavity structure; the longitudinal partition and the lower right reinforcing plate are located on both sides of the longitudinal partition of the connector body.

[0017] In this embodiment, the lower right reinforcing plate, the lower left reinforcing plate, and the longitudinal partition plate work together to bear the load along the longitudinal direction of the vehicle, thereby further improving the strength and fatigue durability.

[0018] In some embodiments, the front subframe mounting structure further includes: A secondary mounting plate is disposed on the longitudinal beam and is used to assist in the installation of the front subframe.

[0019] In this embodiment, the auxiliary mounting plate provides an additional auxiliary mounting point for the front subframe, enabling multi-point positioning of the front subframe and improving the positioning accuracy of the front subframe.

[0020] A vehicle body structure, including the front subframe mounting structure as described above.

[0021] A vehicle comprising the body structure described above. Attached Figure Description

[0022] Figure 1 This is a first-view schematic diagram of a front subframe mounting structure provided in an embodiment of this application; Figure 2 This is a second-view schematic diagram of the front subframe mounting structure provided in an embodiment of this application; Figure 3 This is a third-view schematic diagram of a front subframe mounting structure provided in an embodiment of this application; Figure 4 yes Figure 3 Sectional view along direction AA in the middle; Figure 5 This is an exploded view of a front subframe mounting structure provided in one embodiment of this application; Figure 6 This is a schematic diagram showing the positions of the upper crossbeam structure and the reinforcing tube beam provided in one embodiment of this application; Figure 7 This is a schematic diagram showing the positions of the upper crossbeam structure, the reinforcing tube beam, and the exhaust pipe provided in one embodiment of this application; Figure 8 This is a schematic diagram of a connector provided in an embodiment of this application. Figure 1 ; Figure 9 This is a schematic diagram of a connector provided in an embodiment of this application. Figure 2 ; Figure 10 This is a schematic diagram of a sub-mounting plate provided in an embodiment of this application; Figure 11 This is a schematic diagram of the installation of the sub-mounting plate provided in one embodiment of this application.

[0023] Explanation of reference numerals in the attached figures: 100 - Front panel; 200 - Longitudinal beam, 210 - Right longitudinal beam, 220 - Left longitudinal beam; 300 - First enclosure component, 310 - Upper reinforcing plate, 320 - Middle channel plate; 400 - Second enclosure assembly; 410 - Left main mounting plate of front subframe; 420 - Right main mounting plate of front subframe; 430 - Reinforcing tube beam; 500-Connector, 510-Connector body, 520-Longitudinal partition, 530-Lower left reinforcing plate, 540-Lower right reinforcing plate; 600-mounting plate; 700 - First cavity structure; 800 - Second cavity structure; 900 - Exhaust pipe. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] This application provides a front subframe mounting structure, including: Front bulkhead; longitudinal beams; The first enclosure component is connected to the front bulkhead at the top and to the longitudinal beam at the side; the first enclosure component, the front bulkhead, and the longitudinal beam enclose to form a first cavity structure; The second enclosure component is connected at the top to the side of the first enclosure component away from the front bulkhead, at the side to the longitudinal beam, and at the bottom to the front subframe; the second enclosure component, the first enclosure component, and the longitudinal beam enclose and form a second cavity structure. A connector is disposed in the second cavity structure and passes through the second cavity structure to connect to the first cavity structure.

[0026] The first and second cavity structures provide support for the subframe along the vehicle's height. Connectors link the first and second cavity structures, allowing them to share the load and preventing a single cavity from bearing pressure, thus improving strength and fatigue durability.

[0027] Example 1 Reference Figures 1 to 4 This application provides a front subframe mounting structure, including: a front bulkhead 100, a longitudinal beam 200, a first enclosure component 300, a second enclosure component 400, and a connector 500.

[0028] The top of the first enclosure component 300 is connected to the front bulkhead 100, and the side of the first enclosure component 300 is connected to the longitudinal beam 200. That is... Figure 2 As shown, the upper part of the first enclosure component 300 is connected to the front bulkhead 100, and the left and right sides of the first enclosure component 300 are respectively connected to the longitudinal beams 200. The first enclosure component 300 can be welded and fixed to the front bulkhead 100 and the longitudinal beams 200 respectively to ensure the reliability of the connection and the load capacity. The first enclosure component 300, the front bulkhead 100 and the longitudinal beams 200 are connected to form the first cavity structure 700, which forms a support along the vehicle height direction, so as to provide support when connecting the front subframe.

[0029] The top of the second enclosure component 400 is connected to the side of the first enclosure component 300 away from the front panel 100, i.e. Figure 2In the aforementioned orientation, the top of the second enclosure component 400 is connected to the lower side of the first enclosure component 300. The left and right sides of the second enclosure component 400 are respectively connected to the longitudinal beam 200. The second enclosure component 400 can be welded and fixed to the first enclosure component 300 and the longitudinal beam 200 respectively, ensuring connection reliability and load-bearing capacity. The second enclosure component 400, the first enclosure component 300, and the longitudinal beam 200 together enclose and form the second cavity structure 800, which, together with the first cavity structure 700, provides support along the vehicle height direction. This provides support when connecting to the front subframe, and the connection strength is improved through the joint support of the first cavity structure 700 and the second cavity structure 800.

[0030] The connector 500 can be disposed in the second cavity structure 800. One end of the connector 500 is fixed in the second cavity structure 800, and the other end passes through the second cavity structure 800 and connects to the first cavity structure 700, thereby connecting the first cavity structure 700 and the second cavity structure 800, so that the first cavity structure 700 and the second cavity structure 800 can jointly bear the load.

[0031] In this embodiment, the first enclosure component 300, the front bulkhead 100, and the longitudinal beam 200 enclose to form a first cavity structure 700; the second enclosure component 400, the first enclosure component 300, and the longitudinal beam 200 enclose to form a second cavity structure 800; the front subframe is mounted on the second cavity structure 800. That is, after the front subframe is installed, the first cavity structure 700 and the second cavity structure 800 provide support along the height direction. Furthermore, the first cavity structure 700 and the second cavity structure 800 are connected by a connector 500, allowing them to jointly bear the load, avoiding single-cavity pressure and thus improving strength and fatigue durability.

[0032] Example 2 You can refer to Figure 4 and Figure 5 The front subframe mounting structure of this application embodiment includes: a front bulkhead 100, a longitudinal beam 200, a first enclosure assembly 300, a second enclosure assembly 400, and a connector 500. The first enclosure assembly 300, the front bulkhead 100, and the longitudinal beam 200 enclose to form a first cavity structure 700; the second enclosure assembly 400, the first enclosure assembly 300, and the longitudinal beam 200 enclose to form a second cavity structure 800. The connector 500 is disposed in the second cavity structure 800 and passes through the second cavity structure 800 to connect to the first cavity structure 700. The longitudinal beam 200 includes a right longitudinal beam 210 and a left longitudinal beam 220.

[0033] The first enclosure component 300 includes an upper reinforcing plate 310, which extends laterally along the vehicle, with one end connected to the right longitudinal beam 210 and the other end connected to the left longitudinal beam 220, and the top connected to the front bulkhead 100; the upper reinforcing plate 310, the front bulkhead 100 and the longitudinal beam 200 enclose each other to form a first cavity structure 700.

[0034] The upper reinforcing plate 310 can extend laterally along the vehicle, that is, it can extend along the left and right directions of the vehicle. One end of the upper reinforcing plate 310 extends to the right longitudinal beam 210 and connects with the right longitudinal beam 210; the other end extends to the left longitudinal beam 220 and connects with the left longitudinal beam 220. The top part of the upper reinforcing plate 310 is fixedly connected to the bottom of the front bulkhead 100. At this time, the upper reinforcing plate 310, the front bulkhead 100 and the longitudinal beam 200 enclose to form a first cavity structure 700. The first cavity structure 700 bears part of the load, thereby reducing the load on the connecting member 500, improving the rigidity and strength of the connecting member 500, preventing the connecting member 500 from being pulled off, and thus improving the overall strength and fatigue durability.

[0035] The second enclosure component 400 includes: a left main mounting plate 410 of the front subframe, connected to the left longitudinal beam 220 on its side and connected to the first cavity structure 700 on its top; the left main mounting plate 410, the left longitudinal beam 220, and the first cavity structure 700 enclose the left cavity structure; and a right main mounting plate 420 of the front subframe, connected to the right longitudinal beam 210 on its side and connected to the first cavity structure 700 on its top; the right main mounting plate 420, the right longitudinal beam 210, and the first cavity structure 700 enclose the right cavity structure. The right cavity structure and the left cavity structure are part of the second cavity structure 800.

[0036] The left main mounting plate 410 and the right main mounting plate 420 of the front subframe can be symmetrically arranged. They can also be symmetrical assembly parts. The side of the left main mounting plate 410 connects to the left longitudinal beam 220, and the top of the left main mounting plate 410 connects to the bottom of the first cavity structure 700, i.e., the bottom of the upper reinforcing plate 310. The left main mounting plate 410, the left longitudinal beam 220, and the first cavity structure 700 can be connected by welding. The left main mounting plate 410, the left longitudinal beam 220, and the first cavity structure 700 together form the left cavity structure. On the left side of the vehicle, the left cavity structure and the first cavity structure 700 jointly bear the load of the left side of the subframe. The side of the right main mounting plate 420 of the front subframe is connected to the right longitudinal beam 210, and the top of the right main mounting plate 420 is connected to the bottom of the first cavity structure 700, i.e., the bottom of the upper reinforcing plate 310. The right main mounting plate 420, the right longitudinal beam 210, and the first cavity structure 700 can be connected by welding. The right main mounting plate 420, the right longitudinal beam 210, and the first cavity structure 700 together form the right cavity. On the right side of the vehicle, the right cavity structure and the first cavity structure 700 jointly bear the load of the right side of the subframe. By having the cavity structures on both sides bear part of the load, the load is distributed to each part of the structure, thereby reducing the load on the connector 500, increasing the stiffness and strength of the connector 500, and thus improving the overall strength and fatigue durability.

[0037] In summary, along the height direction of the vehicle, the first cavity structure 700 and the second cavity structure 800 are supported by a double cavity structure, which can avoid the deformation of a single cavity and improve strength and durability.

[0038] In an optional embodiment of this application, reference may be made to Figure 6 The first enclosure component 300 further includes: The middle channel plate 320 is connected to the front bulkhead 100 at the top and to the upper reinforcing plate 310 at the bottom. The middle channel plate 320, the front bulkhead 100 and the upper reinforcing plate 310 form an upper crossbeam structure.

[0039] The central channel plate 320 is positioned in the middle, between the front bulkhead 100 and the upper reinforcing plate 310; that is, the top of the central channel plate 320 connects to the front bulkhead 100, and the bottom of the central channel plate 320 connects to the upper reinforcing plate 310. The upper reinforcing plate 310, the central channel plate 320, and the front bulkhead 100 connect to form an upper crossbeam structure, thereby providing support for the vehicle in the lateral direction and improving its lateral strength and rigidity. (See also...) Figure 7The depth of the upper crossbeam structure and the central channel cavity in the vehicle used to house the exhaust pipe 900 can be determined based on the clearance of the exhaust pipe 900. In one example, this clearance can be 25 mm.

[0040] In an optional embodiment of this application, reference may be made to Figure 6 The second enclosure component 400 further includes a reinforcing tube beam 430 located between the right cavity structure and the left cavity structure.

[0041] The reinforcing tube beam 430 is positioned between the right and left cavity structures. One end of the reinforcing tube beam 430 connects to the left main mounting plate 410 of the front subframe, and the other end connects to the right main mounting plate 420 of the front subframe, forming a side-impact force transmission path. This provides support for the vehicle along its lateral direction, improving its strength and rigidity and reducing lateral intrusion. To reduce manufacturing complexity, the reinforcing tube beam 430 can be connected and fixed to the left main mounting plate 410 and the right main mounting plate 420 of the front subframe using bolts, pins, or other connecting components.

[0042] Furthermore, since the reinforcing tube beam 430 is located near the exhaust pipe 900, its material needs to be corrosion resistant. Steel (black painted part) or aluminum alloy part can be selected, and it can be assembled after the exhaust system is fully assembled.

[0043] A connector 500 connects the first cavity structure 700 and the second cavity structure 800, thereby connecting the first cavity structure 700 and the second cavity structure 800 to resist torsion. The connector 500 includes: a connector body 510, disposed in the right cavity structure, passing through the right cavity structure and connecting to the first cavity structure 700, and disposed in the left cavity structure, passing through the left cavity structure and connecting to the first cavity structure 700; and a longitudinal partition 520, disposed in the right cavity structure along the vehicle's longitudinal direction, and disposed in the left cavity structure along the vehicle's longitudinal direction.

[0044] You can refer to Figure 5 , Figure 8 and Figure 9The connector 500 may include two connector bodies 510 and two longitudinal partitions 520. One set of connector bodies 510 and longitudinal partitions 520 is disposed in the right cavity structure, and the other set of connector bodies 510 and longitudinal partitions 520 is disposed in the left cavity structure. The connector bodies 510 are disposed in the right cavity structure, with one end fixedly connected to the right cavity structure and the other end fixedly connected to the first cavity structure 700. This allows the right cavity structure to be fixedly connected to the first cavity structure 700, sharing the load and avoiding single-cavity pressure, thereby improving strength and fatigue durability. The longitudinal partitions 520 can be disposed along the longitudinal direction of the vehicle in the right cavity structure to bear the longitudinal load of the vehicle, further improving strength and fatigue durability. Accordingly, the connector body 510 is disposed in the left cavity structure. One end of the connector body 510 is fixedly connected to the left cavity structure, and the other end is fixedly connected to the first cavity structure 700, so that the left cavity structure can be fixedly connected to the first cavity structure 700 to share the load, avoiding single cavity pressure and thus improving strength and fatigue durability. The longitudinal partition 520 can be disposed in the left cavity structure along the longitudinal direction of the vehicle to bear the longitudinal load of the vehicle, further improving strength and fatigue durability.

[0045] Among them, the connector body 510 can be a threaded connector, such as a threaded pipe fitting, to connect the first cavity structure 700 to the left cavity structure to form an integral whole, and to connect the first cavity structure 700 to the right cavity structure to form an integral whole.

[0046] In an optional embodiment of this application, the connector 500 further includes: a lower left reinforcing plate 530, which is disposed longitudinally along the vehicle in the left cavity structure and connected to the first cavity structure 700; the longitudinal partition 520 and the lower left reinforcing plate 530 are located on both sides of the connector body 510; and a lower right reinforcing plate 540, which is disposed longitudinally along the vehicle in the right cavity structure and connected to the first cavity structure 700; the longitudinal partition 520 and the lower right reinforcing plate 540 are located on both sides of the connector body 510.

[0047] You can refer to Figure 5 and Figure 9In the left cavity structure, a lower left reinforcing plate 530 can also be provided. The lower left reinforcing plate 530 is arranged longitudinally along the vehicle in the left cavity structure and is fixedly connected to the first cavity structure 700, further strengthening the connection strength between the first cavity structure 700 and the left cavity structure. The longitudinal partition 520 and the lower left reinforcing plate 530 are located on both sides of the connector body 510, forming a double channel along the vehicle's longitudinal direction. This improves the performance of the connector 500 in the vehicle's longitudinal direction. Correspondingly, a lower right reinforcing plate 540 is provided. The lower right reinforcing plate 540 is arranged longitudinally along the vehicle in the right cavity structure and is fixedly connected to the first cavity structure 700, further strengthening the connection strength between the first cavity structure 700 and the right cavity structure. The longitudinal partition 520 and the lower right reinforcing plate 540 are located on both sides of the connector body 510, forming a double channel along the vehicle's longitudinal direction. This improves the performance of the connector 500 in the vehicle's longitudinal axis.

[0048] In some embodiments, the front subframe mounting structure further includes: A secondary mounting plate 600 is disposed on the longitudinal beam 200 and is used to assist in the installation of the front subframe.

[0049] You can refer to Figure 10 and Figure 11 A secondary mounting plate 600 can be installed on the longitudinal beam 200 to assist in the installation of the front subframe. The secondary mounting plate 600 can be connected to the longitudinal beam 200 by welding. The secondary mounting plate 600 provides an additional auxiliary mounting point for the front subframe, enabling multi-point positioning of the front subframe and improving the positioning accuracy of the front subframe.

[0050] This application also discloses a vehicle body structure, including the front subframe mounting structure described above.

[0051] The subframe is installed via a front subframe mounting structure. The subframe connects the chassis suspension system and the body, blocking road vibrations and engine vibrations, and reducing noise directly transmitted into the passenger compartment.

[0052] This application also discloses a vehicle, including the body structure described above.

[0053] In this application, "multiple" refers to two or more.

[0054] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0056] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0057] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A front subframe mounting structure, characterized in that, include: Front bulkhead; Longitudinal beam; The first enclosure component is connected to the front panel at the top and to the longitudinal beam at the side; The first enclosure component, the front panel, and the longitudinal beam enclose each other to form a first cavity structure; The second enclosure component is connected at the top to the side of the first enclosure component away from the front bulkhead, at the side to the longitudinal beam, and at the bottom to the front subframe; the second enclosure component, the first enclosure component, and the longitudinal beam enclose and form a second cavity structure. A connector is disposed in the second cavity structure and passes through the second cavity structure to connect to the first cavity structure.

2. The front subframe mounting structure according to claim 1, characterized in that, The longitudinal beam includes a right longitudinal beam and a left longitudinal beam, and the first enclosure component includes: The upper reinforcing plate extends laterally along the vehicle, with one end connected to the right longitudinal beam and the other end connected to the left longitudinal beam, and the top connected to the front bulkhead; the upper reinforcing plate, the front bulkhead, and the longitudinal beam together form a first cavity structure.

3. The front subframe mounting structure according to claim 2, characterized in that, The first enclosure component further includes: The central channel plate is connected to the front bulkhead at the top and to the upper reinforcing plate at the bottom. The central channel plate, the front bulkhead, and the upper reinforcing plate form an upper crossbeam structure.

4. The front subframe mounting structure according to claim 1, characterized in that, The longitudinal beam includes a right longitudinal beam and a left longitudinal beam; the second cavity structure includes a left cavity structure and a right cavity structure; the second enclosing component includes: The left main mounting plate of the front subframe is connected to the left longitudinal beam on the side and to the first cavity structure on the top. The left main mounting plate of the front subframe, the left longitudinal beam and the first cavity structure together form the left cavity structure. The right main mounting plate of the front subframe is connected to the right longitudinal beam on the side and to the first cavity structure on the top. The right main mounting plate of the front subframe, the right longitudinal beam and the first cavity structure together form the right cavity structure.

5. The front subframe mounting structure according to claim 4, characterized in that, The second enclosure component also includes: A reinforcing tube beam is located between the right cavity structure and the left cavity structure.

6. The front subframe mounting structure according to claim 4, characterized in that, The connector includes: The connector body is disposed in the right cavity structure, passes through the right cavity structure and connects to the first cavity structure, and is disposed in the left cavity structure, passes through the left cavity structure and connects to the first cavity structure; A longitudinal partition is provided in the right cavity structure along the vehicle longitudinal direction, and in the left cavity along the vehicle longitudinal direction.

7. The front subframe mounting structure according to claim 6, characterized in that, The connector also includes: The lower left reinforcing plate is arranged longitudinally along the vehicle in the left cavity structure and is connected to the first cavity structure; the longitudinal partition and the lower left reinforcing plate are located on both sides of the connector body; The lower right reinforcing plate is arranged longitudinally along the vehicle in the right cavity structure and is connected to the first cavity structure; the longitudinal partition and the lower right reinforcing plate are located on both sides of the connector body.

8. The front subframe mounting structure according to claim 1, characterized in that, The front subframe mounting structure also includes: A secondary mounting plate is disposed on the longitudinal beam and is used to assist in the installation of the front subframe.

9. A vehicle body structure, characterized in that, Includes the front subframe mounting structure as described in any one of claims 1-8.

10. A vehicle, characterized in that, Including the vehicle body structure as described in claim 9.

Images