Frame assembly and vehicle

Abstract

The application discloses a vehicle frame assembly and a vehicle, and relates to the technical field of vehicle frames, in particular to a vehicle frame assembly and a vehicle. The vehicle frame assembly comprises two spaced-apart longitudinal beams, a first cross beam, two ends of the first cross beam in the length direction being connected with the two longitudinal beams respectively, a second cross beam, two ends of the second cross beam in the length direction being connected with the two longitudinal beams respectively, and the second cross beam and the first cross beam being spaced apart in the length direction of the longitudinal beams, and a control arm, one side of the two longitudinal beams away from each other being provided with the control arm, one end of the control arm facing the corresponding longitudinal beam being provided with a first mounting point and a second mounting point, the first mounting point and the second mounting point being spaced apart in the length direction of the longitudinal beam and being connected with the longitudinal beam, the first mounting point being opposite to the first cross beam, and the second mounting point being opposite to the second cross beam. According to the vehicle frame assembly, the structural strength and the structural rigidity are good, the impact force from the outside can be effectively resisted, the safety performance of the vehicle in a collision is improved, and the comfort of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a chassis assembly and a vehicle. Background Technology

[0002] In related technologies, the frame assembly has low structural strength, resulting in greater damage to the vehicle body during a collision, lower safety performance, and higher vehicle repair costs. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a vehicle frame assembly with good structural strength and rigidity, which can effectively resist external impact forces, improve the overall vehicle safety collision performance, and enhance the overall vehicle ride comfort.

[0004] Another object of the present invention is to provide a vehicle having the above-described frame assembly.

[0005] According to an embodiment of the present invention, a frame assembly includes two spaced-apart longitudinal beams; a first crossbeam, the two ends of which are respectively connected to the two longitudinal beams along their length; a second crossbeam, the two ends of which are respectively connected to the two longitudinal beams along their length, and the second crossbeam and the first crossbeam are spaced apart along the length of the longitudinal beams; and control arms, each of the two longitudinal beams having a control arm on its side away from each other, the control arm having a first mounting point and a second mounting point at one end facing the corresponding longitudinal beam on the same side, the first mounting point and the second mounting point being spaced apart along the length of the longitudinal beams and both connected to the longitudinal beams, the first mounting point being opposite to the first crossbeam, and the second mounting point being opposite to the second crossbeam.

[0006] According to the vehicle frame assembly of the present invention, the first mounting point and the second mounting point of the control arm are spaced apart along the length of the longitudinal beam and are both connected to the longitudinal beam. The first mounting point is opposite to the first crossbeam, and the second mounting point is opposite to the second crossbeam. This improves the structural strength and rigidity of the vehicle frame assembly, effectively resists external impact forces, protects the integrity of the entire vehicle, and enhances the vehicle's safety collision performance. It solves the problem of severe damage caused by insufficient structural strength of the control arm, which helps to reduce maintenance costs. It also alleviates the propagation of external excitation sources to the interior of the vehicle body, improves the overall vehicle ride comfort, and enhances the user's driving experience.

[0007] In addition, the chassis assembly according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the control arm includes: an arm body; a first arm and a second arm, one end of the first arm and the second arm being connected to the arm body, the first arm and the second arm forming an angle with each other and the distance between the first arm and the second arm gradually increasing in the direction away from the arm body, the end of the first arm away from the arm body forming the first mounting point, and the end of the second arm away from the arm body forming the second mounting point.

[0009] According to some embodiments of the present invention, the frame assembly includes: a first control arm mounting assembly and a second control arm mounting assembly, wherein the first control arm mounting assembly is provided between both ends of the first crossbeam in the length direction and the longitudinal beam, and the second control arm mounting assembly is provided between both ends of the second crossbeam in the length direction and the longitudinal beam, wherein the first mounting point is connected to the first control arm mounting assembly on the same side, and the second mounting point is connected to the second control arm mounting assembly on the same side.

[0010] According to some embodiments of the present invention, the interior of the longitudinal beam defines a first cavity, the interior of the first control arm mounting assembly and the interior of the second control arm mounting assembly both define a second cavity, and the first control arm mounting assembly and the control arm on the same side and the second control arm mounting assembly and the control arm on the same side both define a third cavity.

[0011] According to some embodiments of the present invention, the first control arm mounting assembly includes: a first control arm mounting member, one end of which is connected to the inner side of the longitudinal beam, and the other end of which extends downward and is connected to one end of the first crossbeam; a second control arm mounting member, one end of which is connected to the outer side of the longitudinal beam, and the other end of which is connected to the first control arm mounting member; the first control arm mounting member, the second control arm mounting member, and the longitudinal beam defining a second cavity; and the first control arm mounting member, the second control arm mounting member, and the control arm defining a third cavity.

[0012] According to some embodiments of the present invention, the second control arm mounting assembly includes: a third control arm mounting member, one end of which is connected to the inner side of the longitudinal beam, the other end of which extends downward and is connected to the upper end face of the second crossbeam, and the connection position of the third control arm mounting member and the second crossbeam is spaced apart from the same side end of the second crossbeam; and a fourth control arm mounting member, one end of which is connected to the outer side of the longitudinal beam, the other end of which is connected to the third control arm mounting member, the third control arm mounting member, the fourth control arm mounting member, and the longitudinal beam defining the second cavity, and the third control arm mounting member, the fourth control arm mounting member, the control arm, and the second crossbeam defining the third cavity.

[0013] According to some embodiments of the present invention, a reinforcing plate is provided between the first control arm mounting assembly and the first crossbeam, and the first control arm mounting assembly, the first crossbeam and the reinforcing plate define a fourth cavity; and / or, a reinforcing plate is provided between the second control arm mounting assembly and the second crossbeam, and the second control arm mounting assembly, the second crossbeam and the reinforcing plate define a fourth cavity.

[0014] According to some embodiments of the present invention, a buffer is provided on the side of the first control arm mounting assembly away from the first crossbeam, the buffer, the longitudinal beam, and the first control arm mounting assembly defining a fifth cavity; and / or, a buffer is provided on the side of the second control arm mounting assembly away from the second crossbeam, the buffer, the longitudinal beam, and the second control arm mounting assembly defining a fifth cavity.

[0015] According to some embodiments of the present invention, the frame assembly is symmetrical with respect to a reference plane, which is a plane perpendicular to the first crossbeam and the second crossbeam and parallel to the two longitudinal beams.

[0016] According to some embodiments of the present invention, at least one of the first crossbeam and the second crossbeam includes: a first upper plate and a first lower plate, the first upper plate and the first lower plate being arranged in a vertical direction, and the two ends of the first upper plate and the first lower plate being connected to each other in the width direction to define a sixth cavity.

[0017] According to some embodiments of the present invention, a support plate is provided inside the sixth cavity.

[0018] According to some embodiments of the present invention, both ends of the support plate are connected to one of the first upper plate and the first lower plate, and the middle portion of the support plate protrudes towards and is connected to the other of the first upper plate and the first lower plate; or, both ends of the support plate in the length direction are respectively connected to the opposite inner walls in the width direction of the sixth cavity, and in the width direction of the support plate, the support plate includes a first bent segment, a second bent segment and a straight segment, one end of the first bent segment and one end of the second bent segment are both connected to one of the first upper plate and the first lower plate, both ends of the straight segment are respectively connected to the other ends of the first bent segment and the second bent segment, and the middle portions of the first bent segment and the second bent segment both protrude towards the other of the first upper plate and the first lower plate in the same direction.

[0019] According to some embodiments of the present invention, the first crossbeam is located on the front side of the second crossbeam along the vehicle body direction.

[0020] The vehicle according to an embodiment of the present invention includes the frame assembly described in the embodiment of the present invention.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the frame assembly according to an embodiment of the present invention;

[0024] Figure 2 This is a top view of the vehicle frame assembly according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 A cross-sectional view along the direction indicated by line AA;

[0026] Figure 4 yes Figure 2 A cross-sectional view along the direction indicated by line BB;

[0027] Figure 5 yes Figure 2 A cross-sectional view along the direction indicated by line CC;

[0028] Figure 6 yes Figure 2 A cross-sectional view along the direction indicated by line DD.

[0029] Figure label:

[0030] 100. Chassis assembly;

[0031] 10. Longitudinal beam; 11. First slab; 12. Second slab;

[0032] 21. First crossbeam; 22. Second crossbeam; 23. Third crossbeam; 211. First upper plate; 212. First lower plate;

[0033] 30. Control arm; 31. First mounting point; 32. Second mounting point; 33. Second upper plate; 34. Second lower plate; 35. Fastener; 36. Bushing; 301. Arm body; 302. First arm; 303. Second arm;

[0034] 41. First control arm mounting assembly; 42. Second control arm mounting assembly;

[0035] 51. First cavity; 52. Second cavity; 53. Third cavity; 54. Fourth cavity; 55. Fifth cavity; 56. Sixth cavity;

[0036] 61. First control arm mounting component; 62. Second control arm mounting component; 63. Third control arm mounting component; 64. Fourth control arm mounting component; 631. First control arm sub-mount component; 632. Second control arm sub-mount component; 641. Third control arm sub-mount component; 642. Fourth control arm mounting component;

[0037] 70. Reinforcing plate; 71. First reinforcing member; 72. Second reinforcing member;

[0038] 80. Buffer component; 81. First support component; 82. Second support component;

[0039] 90. Support plate; 91. First bend section; 92. Second bend section; 93. Straight section. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In the description of this invention, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "above," "over," and "on top" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0043] The chassis assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0044] Reference Figures 1-4 As shown, the frame assembly 100 according to an embodiment of the present invention may include: two spaced-apart longitudinal beams 10, a first crossbeam 21 and a second crossbeam 22.

[0045] Specifically, in the length direction of the first crossbeam 21 (e.g.) Figure 1 The two ends of the second beam 22 (in the left-right direction shown in the diagram) are respectively connected to the two longitudinal beams 10, and the second beam 22 is connected in the length direction (e.g.) Figure 1 The two ends of the second crossbeam 22 (shown in the left-right direction) are respectively connected to the two longitudinal beams 10, and the second crossbeam 22 and the first crossbeam 21 are in the length direction of the longitudinal beam 10 (e.g., in the left-right direction). Figure 2 The two longitudinal beams 10, the first crossbeam 21 and the second crossbeam 22 are spaced apart in the front and rear directions as shown, so that they form a rectangular ring structure, which effectively increases the structural strength of the frame assembly 100. The frame assembly 100 has a simple structure, which helps to reduce production costs.

[0046] In addition, such as Figures 1-4 As shown, the frame assembly 100 also includes control arms 30. Control arms 30 are provided on the side of the two longitudinal beams 10 away from each other. The control arms 30 can provide a carrier for structures such as steering and damping devices, resist external impact forces, and protect the integrity of the vehicle body structure.

[0047] However, the inventors of this application have discovered that in the event of a side collision with a vehicle, the structural strength of the control arm 30 is insufficient, which easily leads to high levels of damage to the vehicle body, low vehicle safety performance, and increased vehicle repair costs. Therefore, in order to improve the vehicle's safety collision performance, in this invention, as... Figures 1-4 As shown, the control arm 30 is provided with a first mounting point 31 and a second mounting point 32 at one end of the longitudinal beam 10 on the same side. The first mounting point 31 and the second mounting point 32 are spaced apart in the length direction of the longitudinal beam 10, and both the first mounting point 31 and the second mounting point 32 are connected to the longitudinal beam 10. The first mounting point 31 is opposite to the first crossbeam 21, and the second mounting point 32 is opposite to the second crossbeam 22, so that the first mounting point 31 can be connected to the first crossbeam 21 through the longitudinal beam 10, and the second mounting point 32 can be connected to the second crossbeam 22 through the longitudinal beam 10, thereby increasing the structural strength of the frame assembly 100.

[0048] Therefore, in the event of a side collision, the impact force can be transmitted through the control arm 30 to the first crossbeam 21 and the second crossbeam 22, and then to the other side of the vehicle body. The structure of the frame assembly 100 can effectively resist external impact forces, protect the integrity of the entire vehicle, improve the overall vehicle safety collision performance, and solve the problem of severe damage caused by insufficient structural strength of the control arm 30, thus helping to reduce maintenance costs. At the same time, it improves the structural rigidity of the frame assembly 100, effectively mitigating the transmission of external excitation sources (such as road noise, vibration damping, etc.) to the interior of the vehicle body, improving the overall ride comfort and enhancing the user's driving experience.

[0049] It should be noted that, for ease of description, the directions such as "left and right", "front and back" and "up and down" in this invention are based on the orientation relationships shown in the accompanying drawings, and are not a limitation on the orientation in actual application.

[0050] In some embodiments, the first crossbeam 21 and the second crossbeam 22 can be connected to the two longitudinal beams 10 by welding, ensuring reliable connection and helping to reduce the production cost of the frame assembly 100.

[0051] According to an embodiment of the present invention, the frame assembly 100 is spaced apart along the length of the longitudinal beam 10 by a first mounting point 31 and a second mounting point 32 of the control arm 30, and both are connected to the longitudinal beam 10. The first mounting point 31 is opposite to the first crossbeam 21, and the second mounting point 32 is opposite to the second crossbeam 22. This improves the structural strength and rigidity of the frame assembly 100, effectively resists external impact forces, protects the integrity of the entire vehicle, and enhances the vehicle's safety collision performance. It solves the problem of severe damage caused by insufficient structural strength of the control arm 30, which helps to reduce maintenance costs. It also alleviates the propagation of external excitation sources to the interior of the vehicle body, improves the overall vehicle ride comfort, and enhances the user's driving experience.

[0052] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the control arm 30 may include an arm body 301, a first arm 302, and a second arm 303. One end of the first arm 302 and the second arm 303 are both connected to the arm body 301. The first arm 302 and the second arm 303 are at an angle to each other, and the distance between the first arm 302 and the second arm 303 gradually increases in the direction away from the arm body 301. The end of the first arm 302 away from the arm body 301 forms a first mounting point 31, and the end of the second arm 303 away from the arm body 301 forms a second mounting point 32. The control arm 30 roughly forms a "Y" shaped structure, so that the connection between the control arm 30 and the longitudinal beam 10 can roughly form a triangular ring structure. Thus, the frame assembly 100 forms a combination structure of triangle and rectangle, which effectively improves the structural strength of the frame assembly 100.

[0053] During a side collision, the impact force is transmitted along the triangular ring structure formed by the control arm 30 and the longitudinal beam 10, and then through the rectangular ring structure formed by the first crossbeam 21 and the second crossbeam 22 to the other side of the vehicle. The ring force transmission structure combining the triangle and the rectangle can effectively resist energy impact, ensure the integrity of the structure, improve the overall vehicle safety collision performance, and help reduce maintenance costs.

[0054] In some embodiments, such as Figures 3-6 As shown, the control arm 30 may include a second upper plate 33 and a second lower plate 34, which are arranged in the vertical direction. The outer periphery of the second upper plate 33 and the second lower plate 34 are connected to each other to form the control arm 30. The control arm 30 has a simple structure and is easy to manufacture. The second upper plate 33 and the second lower plate 34 can be set according to the actual situation, which can reduce production costs while ensuring structural strength.

[0055] In some embodiments, such as Figure 5 and Figure 6 As shown, both the first mounting point 31 and the second mounting point 32 are connected to the longitudinal beam 10 via fasteners 35, ensuring that the control arm 30 is reliably fixed on the longitudinal beam 10 and facilitating the disassembly of the control arm 30. For example, the fastener 35 can be a combination of eccentric bolts.

[0056] In some embodiments, such as Figure 5 and Figure 6 As shown, a bushing 36 may be provided between the fastener 35 and the control arm 30. The bushing 36 can reduce structural wear, vibration and noise, and has a good shock absorption function, which can improve the driving comfort of the vehicle.

[0057] In some embodiments of the present invention, such as Figures 1-4As shown, the frame assembly 100 includes a first control arm mounting assembly 41 and a second control arm mounting assembly 42. The first control arm mounting assembly 41 is provided between both ends of the first crossbeam 21 in the length direction and the longitudinal beam 10, and the second control arm mounting assembly 42 is provided between both ends of the second crossbeam 22 in the length direction and the longitudinal beam 10. This effectively increases the connection strength between the first crossbeam 21, the second crossbeam 22 and the longitudinal beam 10, improves the structural strength and rigidity of the frame assembly 100, effectively reduces the transmission of external excitation sources to the interior of the vehicle body, and improves the overall driving comfort.

[0058] In addition, such as Figure 1 , Figure 3 and Figure 4 As shown, the first mounting point 31 is connected to the first control arm mounting assembly 41 on the same side, and the second mounting point 32 is connected to the second control arm mounting assembly 42 on the same side, thereby connecting the control arm 30 to the longitudinal beam 10. This ensures that the first mounting point 31 is opposite to the first crossbeam 21 and the second mounting point 32 is opposite to the second crossbeam 22, which facilitates the transmission of collision force, effectively resists external impact forces, protects the integrity of the vehicle, and improves the vehicle's safety collision performance.

[0059] According to some embodiments of the present invention, such as Figure 3 and Figure 4 As shown, the interior of the longitudinal beam 10 defines a first cavity 51, the interior of the first control arm mounting assembly 41 and the interior of the second control arm mounting assembly 42 both define a second cavity 52, and the first control arm mounting assembly 41 and the control arm 30 on the same side and the second control arm mounting assembly 42 and the control arm 30 on the same side both define a third cavity 53. Through the superposition design of the first cavity 51, the second cavity 52 and the third cavity 53, the structural strength of the frame assembly 100 is improved.

[0060] When a side collision occurs, the collision force can be transmitted through the control arm 30 to the first cavity 51, the second cavity 52 and the third cavity 53. The first cavity 51, the second cavity 52 and the third cavity 53 can bear, absorb and transmit the collision force, thereby improving the overall vehicle safety collision performance and effectively protecting the structural integrity of the vehicle body.

[0061] In some embodiments, such as Figure 3 and Figure 4 As shown, the longitudinal beam 10 may include a first plate 11 and a second plate 12, the first plate 11 and the second plate 12 being in the width direction of the vehicle body (e.g., Figure 1 The first plate 11 and the second plate 12 are arranged in the left-right direction (as shown in the diagram), and in the width direction (e.g., the width direction of the second plate 12). Figure 3The two ends of the longitudinal beam 10 (shown in the up-down direction) are connected to each other, so that the first plate 11 and the second plate 12 can define the first cavity 51. The structure of the longitudinal beam 10 is simple and easy to process and manufacture. The first plate 11 and the second plate 12 can be set according to the actual situation, so as to reduce the production cost while ensuring the structural strength.

[0062] In embodiments of the present invention, the specific structures of the first control arm mounting assembly 41 and the second control arm mounting assembly 42 can be set according to actual conditions.

[0063] For example, in some embodiments, such as Figures 1-3 As shown, the first control arm mounting assembly 41 may include a first control arm mounting member 61 and a second control arm mounting member 62. One end of the first control arm mounting member 61 is connected to the inner side of the longitudinal beam 10, and the other end of the first control arm mounting member 61 extends downward and is connected to one end of the first crossbeam 21. One end of the second control arm mounting member 62 is connected to the outer side of the longitudinal beam 10, and the other end of the second control arm mounting member 62 is connected to the first control arm mounting member 61. This realizes the connection between the first control arm mounting assembly 41 and the longitudinal beam 10 and the first crossbeam 21, ensuring that the connection of the first control arm mounting assembly 41 is reliable. The structure of the first control arm mounting assembly 41 is simple and easy to manufacture. Moreover, the first control arm mounting member 61 and the second control arm mounting member 62 can be set according to the actual situation, which can reduce production costs while ensuring that the structural strength is met.

[0064] In addition, such as Figure 3 As shown, the first control arm mounting member 61, the second control arm mounting member 62 and the longitudinal beam 10 can define the second cavity 52, and the first control arm mounting member 61, the second control arm mounting member 62 and the control arm 30 can define the third cavity 53, which makes the formation of the second cavity 52 and the third cavity 53 simple, ensures high structural strength of the frame assembly 100, and helps to reduce production costs and facilitates lightweight design.

[0065] For example, in some embodiments, such as Figure 1 , Figure 2 and Figure 4As shown, the second control arm mounting assembly 42 may include a third control arm mounting member 63 and a fourth control arm mounting member 64. One end of the third control arm mounting member 63 is connected to the inner side of the longitudinal beam 10, and the other end of the first control arm mounting member 61 extends downward and is connected to the upper end face of the second crossbeam 22. One end of the fourth control arm mounting member 64 is connected to the outer side of the longitudinal beam 10, and the other end of the fourth control arm mounting member 64 is connected to the third control arm mounting member 63. This realizes the connection between the second control arm mounting assembly 42 and the longitudinal beam 10 and the second crossbeam 22, ensuring that the connection of the second control arm mounting assembly 42 is reliable. The structure of the second control arm mounting assembly 42 is simple and easy to manufacture. Furthermore, the third control arm mounting member 63 and the fourth control arm mounting member 64 can be set according to actual conditions, which can reduce production costs while ensuring structural strength.

[0066] In addition, such as Figure 4 As shown, the connection point between the third control arm mount 63 and the second crossbeam 22 is spaced apart from the same-side end of the second crossbeam 22, allowing the second crossbeam 22 to extend beyond the connection point between the third control arm mount 63 and the second crossbeam 22. In the event of a side collision, the second crossbeam 22 can absorb the energy of the collision force, allowing its extended area to collapse and absorb energy in advance, weakening the collision energy, reducing the transfer of collision energy to the other side of the vehicle body, protecting the structural integrity of the frame assembly 100, improving the overall vehicle safety collision performance, effectively reducing damage to the frame assembly 100, and lowering maintenance costs.

[0067] At the same time, such as Figure 4 As shown, the third control arm mounting member 63, the fourth control arm mounting member 64 and the longitudinal beam 10 define the second cavity 52, and the third control arm mounting member 63, the fourth control arm mounting member 64, the control arm 30 and the second crossbeam 22 define the third cavity 53. This simplifies the formation of the second cavity 52 and the third cavity 53, ensures high structural strength of the frame assembly 100, and helps reduce production costs and facilitates lightweight design.

[0068] In some embodiments, such as Figure 1 , Figure 2 and Figure 4As shown, the third control arm mounting component 63 includes a first control arm sub-mounting component 631 and a second control arm sub-mounting component 632. The first control arm sub-mounting component 631 and the second control arm sub-mounting component 632 are arranged and connected along the length of the longitudinal beam 10. In the top-to-bottom direction, one end of the first control arm sub-mounting component 631 and one end of the second control arm sub-mounting component 632 are connected to the inner side of the longitudinal beam 10, and the other end of the first control arm sub-mounting component 631 and the other end of the second control arm sub-mounting component 632 extend downwards and connect to the upper end face of the second crossbeam 22. This realizes the connection between the third control arm mounting component 63 and the longitudinal beam 10 and the second crossbeam 22, ensuring reliable connection of the third control arm mounting component 63. The third control arm mounting component 63 has a simple structure and is easy to manufacture. The first control arm mounting component 631 and the second control arm mounting component 632 can be set according to actual conditions, which can reduce production costs while ensuring structural strength.

[0069] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the fourth control arm mounting component 64 includes a third control arm sub-mount component 641 and a fourth control arm sub-mount component 642. One end of the fourth control arm sub-mount component 642 is connected to the third control arm mounting component 63, and the other end of the fourth control arm sub-mount component 642 extends away from the third control arm mounting component 63. One end of the third control arm mounting component 641 is connected to the outer side of the longitudinal beam 10, and the other end of the third control arm mounting component 641 extends downward to connect with the fourth control arm mounting component 642, ensuring reliable connection of the fourth control arm mounting component 64. The fourth control arm mounting component 64 has a simple structure, is easy to process and manufacture, and the third control arm mounting component 641 and the fourth control arm mounting component 642 can be set according to actual conditions, ensuring structural strength while reducing production costs.

[0070] In some specific embodiments, such as Figure 4 As shown, the third control arm mounting component 63 includes a first control arm sub-mount component 631 and a second control arm sub-mount component 632, and the fourth control arm mounting component 64 includes a third control arm sub-mount component 641 and a fourth control arm mounting component 642. The first control arm sub-mount component 631, the second control arm mounting component 632, the third control arm mounting component 641, the fourth control arm mounting component 642 and the longitudinal beam 10 define the second cavity 52. ​​The first control arm mounting component 631, the second control arm mounting component 632, the fourth control arm mounting component 642, the control arm 30 and the second crossbeam 22 define the third cavity 53. This simplifies the formation of the second cavity 52 and the third cavity 53, ensures high structural strength of the frame assembly 100, and helps reduce production costs and facilitates lightweight design.

[0071] In some embodiments of the present invention, such as Figures 1-3 As shown, a reinforcing plate 70 is provided between the first control arm mounting assembly 41 and the first crossbeam 21. The first control arm mounting assembly 41, the first crossbeam 21 and the reinforcing plate 70 define the fourth cavity 54, which helps to improve the connection strength between the first control arm mounting assembly 41 and the first crossbeam 21, thereby improving the structural strength and rigidity of the frame assembly 100, effectively resisting external impact forces, improving the overall vehicle safety collision performance, and effectively mitigating the propagation of external excitation sources to the interior of the vehicle body, thus improving the overall vehicle ride comfort.

[0072] Alternatively, a reinforcing plate 70 may be provided between the second control arm mounting assembly 42 and the second crossbeam 22. The second control arm mounting assembly 42, the second crossbeam 22, and the reinforcing plate 70 define a fourth cavity 54, which helps to improve the connection strength between the second control arm mounting assembly 42 and the second crossbeam 22, thereby improving the structural strength and rigidity of the frame assembly 100, effectively resisting external impact forces, improving the overall vehicle safety collision performance, and effectively mitigating the propagation of external excitation sources to the interior of the vehicle body, thus improving the overall vehicle ride comfort.

[0073] Alternatively, a reinforcing plate 70 may be provided between the first control arm mounting assembly 41 and the first crossbeam 21, defining a fourth cavity 54. A reinforcing plate 70 may also be provided between the second control arm mounting assembly 42 and the second crossbeam 22, defining the fourth cavity 54. This arrangement enhances the connection strength between the first control arm mounting assembly 41 and the first crossbeam 21, and between the second control arm mounting assembly 42 and the second crossbeam 22, thereby increasing the structural strength and rigidity of the frame assembly 100. This effectively resists external impacts, improves the overall vehicle safety collision performance, and effectively mitigates the propagation of external excitation sources into the vehicle body, enhancing the overall vehicle ride comfort.

[0074] In some embodiments of the frame assembly 100, which includes a first cavity 51, a second cavity 52, and a third cavity 53, such as Figure 3 As shown, the first cavity 51, the second cavity 52, and the third cavity 53 can be stacked vertically. The fourth cavity 54 can be located inside the first cavity 51, the second cavity 52, and the third cavity 53 to strengthen the structure. This allows the first cavity 51, the second cavity 52, the third cavity 53, and the fourth cavity 54 to form a roughly right-angled trapezoidal cavity stacked structure, ensuring high structural strength and rigidity of the frame assembly 100. This effectively resists external impact forces, improves the vehicle's collision performance, and prevents external vibration sources from being transmitted to the vehicle body through the frame assembly 100, ensuring passenger comfort.

[0075] In some embodiments, such as Figure 3 As shown, when a reinforcing plate 70 is provided between the first control arm mounting assembly 41 and the first crossbeam 21, the reinforcing plate 70 may include a first reinforcing member 71 and a second reinforcing member 72. One end of the second reinforcing member 72 is connected to the first control arm mounting assembly 41, and the other end of the second reinforcing member 72 extends toward the direction close to the first crossbeam 21. The other ends of the first reinforcing member 71 and the second reinforcing member 72 are connected, and in the direction from top to bottom, the other end of the first reinforcing member 71 is inclined toward the direction away from the first control arm mounting assembly 41. The first reinforcing member 71, the second reinforcing member 72 and the first control arm mounting assembly 41 define a fourth cavity 54, realizing the connection between the reinforcing plate 70 and the first control arm mounting assembly 41 and the first crossbeam 21, ensuring that the connection of the reinforcing plate 70 is reliable. The structure of the reinforcing plate 70 is simple and easy to process and manufacture.

[0076] In addition, such as Figure 3 As shown, the first reinforcing member 71, the second reinforcing member 72, and the first control arm mounting assembly 41 define the fourth cavity 54, simplifying its formation, ensuring high structural strength of the frame assembly 100, reducing production costs, and facilitating lightweight design. Furthermore, the first reinforcing member 71 and the second reinforcing member 72 can be configured according to actual conditions, ensuring structural strength while reducing production costs.

[0077] In some embodiments, when a reinforcing plate 70 is provided between the second control arm mounting assembly 42 and the second crossbeam 22, the reinforcing plate 70 may include a first reinforcing member 71 and a second reinforcing member 72. One end of the second reinforcing member 72 is connected to the second control arm mounting assembly 42, and the other end of the second reinforcing member 72 extends toward the direction close to the second crossbeam 22. The first reinforcing member 71 is connected to the other end of the second reinforcing member 72, and in the top-to-bottom direction, the other end of the first reinforcing member 71 is inclined toward the direction away from the second control arm mounting assembly 42. The first reinforcing member 71, the second reinforcing member 72 and the second control arm mounting assembly 42 define a fourth cavity 54, realizing the connection between the reinforcing plate 70 and the second control arm mounting assembly 42 and the second crossbeam 22, ensuring that the connection of the reinforcing plate 70 is reliable. The structure of the reinforcing plate 70 is simple and easy to process and manufacture.

[0078] Furthermore, the first reinforcing member 71, the second reinforcing member 72, and the second control arm mounting assembly 42 define the fourth cavity 54, simplifying its formation, ensuring high structural strength of the frame assembly 100, reducing production costs, and facilitating lightweight design. Simultaneously, the first reinforcing member 71 and the second reinforcing member 72 can be configured according to actual conditions, ensuring structural strength while reducing production costs.

[0079] According to some embodiments of the present invention, a buffer 80 is provided on the side of the first control arm mounting assembly 41 away from the first crossbeam 21. The buffer 80, the longitudinal beam 10 and the first control arm mounting assembly 41 define a fifth cavity 55. The buffer 80 helps to improve the connection strength between the first control arm mounting assembly 41 and the first crossbeam 21, thereby improving the structural strength and structural rigidity of the frame assembly 100. The fifth cavity 55 can absorb collision energy, which helps to reduce collision energy, ensure the integrity of the vehicle, improve the collision performance of the vehicle, and effectively mitigate the propagation of external excitation sources to the interior of the vehicle body, thereby improving the overall driving comfort.

[0080] Or, such as Figure 1 , Figure 2 and Figure 4 As shown, a buffer 80 is provided on the side of the second control arm mounting assembly 42 away from the second crossbeam 22. The buffer 80, the longitudinal beam 10, and the second control arm mounting assembly 42 define a fifth cavity 55. The buffer 80 helps to improve the connection strength between the second control arm mounting assembly 42 and the second crossbeam 22, thereby improving the structural strength and rigidity of the frame assembly 100. The fifth cavity 55 can absorb collision energy, which helps to reduce collision energy, ensure the integrity of the vehicle, improve the collision performance of the vehicle, and effectively mitigate the propagation of external excitation sources to the interior of the vehicle body, thereby improving the overall driving comfort.

[0081] Alternatively, a buffer 80 may be provided on the side of the first control arm mounting assembly 41 away from the first crossbeam 21. The buffer 80, the longitudinal beam 10, and the first control arm mounting assembly 41 define a fifth cavity 55. Similarly, a buffer 80 may be provided on the side of the second control arm mounting assembly 42 away from the second crossbeam 22. The buffer 80, the longitudinal beam 10, and the second control arm mounting assembly 42 define a fifth cavity 55. The buffer 80 can improve the connection strength between the first control arm mounting assembly 41 and the first crossbeam 21, and between the second control arm mounting assembly 42 and the second crossbeam 22, thereby improving the structural strength and rigidity of the frame assembly 100. The fifth cavity 55 can absorb collision energy, which helps to reduce collision energy, ensure the integrity of the vehicle, improve the collision performance of the vehicle, and effectively mitigate the propagation of external excitation sources to the interior of the vehicle body, thus improving the overall driving comfort.

[0082] In some embodiments, when a buffer 80 is provided on the side of the first control arm mounting assembly 41 away from the first crossbeam 21, the buffer 80 may include a first support 81 and a second support 82. One end of the second support 82 is connected to the first control arm mounting assembly 41, and the other end of the second support 82 extends in a direction away from the first control arm mounting assembly 41. One end of the first support 81 is connected to the longitudinal beam 10, and in the top-to-bottom direction, the other end of the first support 81 extends in a direction away from the first control arm mounting assembly 41 and is connected to the second support 82. The buffer 80 has a simple structure and is easy to process and manufacture.

[0083] In addition, such as Figure 4 As shown, the first support member 81, the second support member 82, the longitudinal beam 10, and the first control arm mounting assembly 41 define the fifth cavity 55, simplifying its formation, ensuring high structural strength of the frame assembly 100, reducing production costs, and facilitating lightweight design. Furthermore, the first support member 81 and the second support member 82 can be configured according to actual conditions, ensuring structural strength while reducing production costs.

[0084] In some embodiments, such as Figure 4 As shown, when a buffer 80 is provided on the side of the second control arm mounting assembly 42 away from the second crossbeam 22, the buffer 80 may include a first support 81 and a second support 82. One end of the second support 82 is connected to the second control arm mounting assembly 42, and the other end of the second support 82 extends in a direction away from the second control arm mounting assembly 42. One end of the first support 81 is connected to the longitudinal beam 10, and in the direction from top to bottom, the other end of the first support 81 extends in a direction away from the second control arm mounting assembly 42 and is connected to the second support 82. The buffer 80 has a simple structure and is easy to process and manufacture.

[0085] In addition, such as Figure 4 As shown, the first support member 81, the second support member 82, the longitudinal beam 10, and the first control arm mounting assembly 41 define the fifth cavity 55, simplifying its formation, ensuring high structural strength of the frame assembly 100, reducing production costs, and facilitating lightweight design. Furthermore, the first support member 81 and the second support member 82 can be configured according to actual conditions, ensuring structural strength while reducing production costs.

[0086] In some embodiments of the frame assembly 100, which includes a first cavity 51, a second cavity 52, and a third cavity 53, such as Figure 4As shown, the buffer 80, the second control arm mounting assembly 42, the control arm 30, and the second crossbeam 22 can define the third cavity 53. The first cavity 51, the second cavity 52, and the third cavity 53 can be stacked vertically. The fifth cavity 55 can be located outside the first cavity 51, the second cavity 52, and the third cavity 53 to achieve the function of strengthening the structure. The first cavity 51, the second cavity 52, and the third cavity 53 can form a roughly right-angled trapezoidal cavity stacked structure. The fifth cavity 55 can absorb collision energy, ensuring high structural strength and rigidity of the frame assembly 100, effectively resisting external impact forces, improving the vehicle's collision performance, and preventing external vibration sources from being transmitted to the vehicle body through the frame assembly 100, thus ensuring ride comfort.

[0087] In some embodiments of the present invention, such as Figures 1-4 As shown, the frame assembly 100 can be symmetrical with respect to a reference plane, which is a plane perpendicular to the first crossbeam 21 and the second crossbeam 22 and parallel to the two longitudinal beams 10. This facilitates the processing and manufacturing of the frame assembly 100 and helps to reduce production costs.

[0088] In embodiments of the present invention, the specific structures of the first crossbeam 21 and the second crossbeam 22 can be set according to actual conditions.

[0089] For example, in some embodiments, such as Figure 4 As shown, the second crossbeam 22 may include a first upper plate 211 and a first lower plate 212, which are arranged vertically and horizontally, respectively. Figure 2 The two ends of the second crossbeam 22 (in the front-back direction shown in the figure) are connected to each other, which can define the sixth cavity 56. The structure of the second crossbeam 22 is simple and easy to process and manufacture. The first upper plate 211 and the first lower plate 212 can be set according to the actual situation, which can reduce production costs while ensuring structural strength.

[0090] Of course, the first crossbeam 21 may also include a first upper plate 211 and a first lower plate 212, which are arranged in the vertical direction. The two ends of the first upper plate 211 and the first lower plate 212 in the width direction are connected to each other to define the sixth cavity 56, which is also within the protection scope of the present invention.

[0091] For example, in some embodiments, such as Figure 3As shown, the first crossbeam 21 may include a first upper plate 211 and a first lower plate 212. The first upper plate 211 and the first lower plate 212 are arranged in the front-to-back direction. The two ends of the first upper plate 211 and the first lower plate 212 are connected to each other in the vertical direction, which can define the sixth cavity 56. The structure of the first crossbeam 21 is simple and easy to process and manufacture. The first upper plate 211 and the first lower plate 212 can be set according to the actual situation, which can reduce production costs while ensuring the structural strength.

[0092] Of course, the second crossbeam 22 may also include a first upper plate 211 and a first lower plate 212, which are arranged in the front-to-back direction. The two ends of the first upper plate 211 and the first lower plate 212 in the vertical direction are connected to each other to define the sixth cavity 56, which is also within the protection scope of the present invention.

[0093] In some embodiments of the frame assembly 100, which includes a first cavity 51, a second cavity 52, and a third cavity 53, such as Figure 3 As shown, the two ends of the first crossbeam 21 in the length direction are connected to the two longitudinal beams 10, so that the two ends of the sixth cavity 56 can be connected to the two third cavities 53 respectively, forming an interconnection between the cavities, which helps to increase the structural strength of the frame assembly 100.

[0094] In some embodiments of the frame assembly 100, which includes a first cavity 51, a second cavity 52, and a third cavity 53, such as Figure 4 As shown, the two ends of the second crossbeam 22 in the length direction are connected to the two longitudinal beams 10, so that the two ends of the sixth cavity 56 can be connected to the two third cavities 53 respectively, forming an interconnection between the cavities, which helps to increase the structural strength of the frame assembly 100.

[0095] According to some embodiments of the present invention, such as Figure 4 As shown, a support plate 90 can be provided inside the sixth cavity 56. The support plate 90 can increase the structural strength of the sixth cavity 56, meet the required usage requirements, improve the structural strength of the frame assembly 100, and facilitate the reduction of the height of the sixth cavity 56, thereby reducing production costs and achieving lightweight design.

[0096] In embodiments of the present invention, the specific structure of the support plate 90 can be set according to actual conditions.

[0097] For example, in some embodiments, such as Figure 4As shown, both ends of the support plate 90 are connected to the first lower plate 212. The middle part of the support plate 90 protrudes towards the first upper plate 211 and is connected to the first upper plate 211, so that the support plate 90 can generally form a "ji" - shaped structure, which can effectively improve the structural strength of the sixth cavity 56. Moreover, the structure of the support plate 90 is simple, which is conducive to reducing production costs.

[0098] Of course, both ends of the support plate 90 can also be connected to the first upper plate 211. Specifically, both ends of the support plate 90 are connected to the first upper plate 211, and the middle part of the support plate 90 protrudes towards and is connected to the first lower plate 212, which is also within the protection scope of the present invention.

[0099] For example, in some embodiments, as Figure 4 shown, both ends in the length direction of the support plate 90 (such as the front - back direction shown in Figure 2 ) are respectively connected to the opposite inner walls in the width direction of the sixth cavity 56 (such as the front - back direction shown in Figure 2 ), which can fix the support plate 90 in the sixth cavity 56 and improve the structural strength of the sixth cavity 56.

[0100] In addition, in the width direction of the support plate 90 (such as the left - right direction shown in Figure 1 ), the support plate 90 may include a first bending segment 91, a second bending segment 92 and a straight segment 93. One end of the first bending segment 91 and one end of the second bending segment 92 are both connected to the first upper plate 211. Both ends of the straight segment 93 are respectively connected to the other end of the first bending segment 91 and the other end of the second bending segment 92. The middle parts of the first bending segment 91 and the second bending segment 92 both protrude towards the first upper plate 211, and the protruding directions of the first bending segment 91 and the second bending segment 92 are the same, so that the support plate 90 can generally form a "W" - shaped structure, which can effectively improve the structural strength of the sixth cavity 56. Moreover, the structure of the support plate 90 is simple, which is conducive to reducing production costs.

[0101] Of course, one end of the first bending segment 91 and one end of the second bending segment 92 can both be connected to the first lower plate 212. Both ends of the straight segment 93 are respectively connected to the other end of the first bending segment 91 and the other end of the second bending segment 92. The middle parts of the first bending segment 91 and the second bending segment 92 both protrude towards the first lower plate 212 and the protruding directions are the same, which is also within the protection scope of the present invention.

[0102] In some embodiments, as Figure 4 shown, there can be multiple support plates 90, and the multiple support plates 90 can be arranged at intervals in the length direction of the sixth cavity 56 (such as the left - right direction shown in Figure 1 ), which can effectively improve the structural strength of the sixth cavity 56.

[0103] In some embodiments where the connection point between the third control arm mount 63 and the second crossbeam 22 is spaced apart from the same-side end of the second crossbeam 22, such as... Figure 4 As shown, multiple support plates 90 can be respectively provided on both sides of the length direction of the sixth cavity 56, which can effectively increase the end strength of the sixth cavity 56, improve the strength of the connection area of ​​the sixth cavity 56, facilitate the absorption of collision energy, and protect the structural integrity of the vehicle body.

[0104] In some embodiments, such as Figure 4 As shown, the structures of the multiple support plates 90 can be different. Different support plate structures can be selected according to different situations to meet different usage requirements.

[0105] In embodiments of the present invention, the number of support plates 90 can be flexibly set according to actual conditions. For example, the support plates 90 can be as follows: Figure 4 The number shown is four, but it can also be two, three, five, six or more, all of which are within the protection scope of this invention.

[0106] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first crossbeam 21 is located along the vehicle body direction of the second crossbeam 22 (e.g., Figure 2 The front side (as shown in the front-rear direction) allows the second crossbeam 22 to be close to the driver's area. Through the control arm 30, the longitudinal beam 10 and the second crossbeam 22, collision energy can be absorbed, protecting the structural integrity of the driver's area.

[0107] In some specific embodiments, such as Figure 3 and Figure 4 As shown, the first crossbeam 21 is located on the front side of the second crossbeam 22 along the vehicle body direction. The first crossbeam 21 may include a first cavity 51, a second cavity 52, a third cavity 53, and a fourth cavity 54. The second crossbeam 22 may include a first cavity 51, a second cavity 52, a third cavity 53, and a fifth cavity 55. In the event of a vehicle collision, the collision force is distributed through the control arm 30 to the connecting cavities of the first crossbeam 21 and the second crossbeam 22, thereby maximizing the release of collision energy and protecting the structural integrity of the driver's area.

[0108] When the collision force is transmitted to the first crossbeam 21, the collision energy can be transmitted to the right-angled trapezoidal cavity superposition structure composed of the first cavity 51, the second cavity 52, the third cavity 53 and the fourth cavity 54 to bear the force. After the collision energy is sufficiently weakened, it is transmitted to the other side of the vehicle body. The entire force transmission process realizes the mechanical effects of bearing, absorbing and transmitting force. The frame assembly 100 has high structural strength and strong safety performance, and can effectively protect the structural integrity of the vehicle body.

[0109] When the collision force is transmitted to the second crossbeam 22, the collision energy can first be absorbed by the fifth cavity 55 composed of the buffer 80 on the outside. Then, it is transmitted to the right trapezoidal cavity superposition structure composed of the first cavity 51, the second cavity 52 and the third cavity 53 to bear the force. The energy is then absorbed by the second collapse through the right trapezoidal cavity and the extension area of ​​the second crossbeam 22. After the collision energy is sufficiently weakened, it is transmitted to the other side of the vehicle body. The entire force transmission process realizes the mechanical effects of bearing, absorbing and transmitting force. The frame assembly 100 has high structural strength and strong safety performance, and can effectively protect the structural integrity of the vehicle body.

[0110] In some embodiments, such as Figure 1 and Figure 2 As shown, the frame assembly 100 may include a third crossbeam 23, the third crossbeam 23 in the length direction (e.g. Figure 1 The two ends of the frame assembly 100 (shown in the left and right directions) are respectively connected to two longitudinal beams 10. The third crossbeam 23, the second crossbeam 22 and the first crossbeam 21 are spaced apart in the length direction of the longitudinal beam 10, so that the first crossbeam 21, the second crossbeam 22 and the third crossbeam 23 are connected to the longitudinal beam 10, which increases the structural strength of the frame assembly 100. The frame assembly 100 has a simple structure, which is conducive to reducing production costs.

[0111] In addition, such as Figure 1 and Figure 2 As shown, the third crossbeam 23 is located on the front side of the first crossbeam 21 along the vehicle body direction. When a collision occurs on the front side of the vehicle, the third crossbeam 23 can absorb the collision energy, resist the impact force from the outside, protect the integrity of the vehicle body structure, and improve the overall vehicle safety collision performance.

[0112] The vehicle according to the present invention includes a frame assembly 100 according to an embodiment of the present invention. Because the frame assembly 100 according to the embodiment of the present invention has the aforementioned beneficial technical effects, the vehicle according to the embodiment of the present invention, with the first mounting point 31 and the second mounting point 32 of the control arm 30 spaced apart along the length of the longitudinal beam 10 and both connected to the longitudinal beam 10, the first mounting point 31 opposite to the first crossbeam 21 and the second mounting point 32 opposite to the second crossbeam 22, improves the structural strength and rigidity of the frame assembly 100, effectively resists external impact forces, protects the integrity of the entire vehicle, improves the overall vehicle safety collision performance, solves the problem of severe damage caused by insufficient structural strength of the control arm 30, helps reduce maintenance costs, and alleviates the propagation of external excitation sources to the interior of the vehicle body, improving the overall vehicle ride comfort and enhancing the user's driving experience.

[0113] The chassis assembly 100 and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0114] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0115] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle frame assembly, characterized in that, include: Two spaced-apart longitudinal beams (10) define a first cavity (51) inside the longitudinal beams (10); The first crossbeam (21) is connected to the two longitudinal beams (10) at both ends along its length. The second crossbeam (22) has two ends connected to the two longitudinal beams (10) in the length direction, and the second crossbeam (22) and the first crossbeam (21) are spaced apart in the length direction of the longitudinal beams (10); Control arms (30) are provided on the side of each of the two longitudinal beams (10) away from each other. The control arms (30) have a first mounting point (31) and a second mounting point (32) at one end facing the longitudinal beam (10) on the same side. The first mounting point (31) and the second mounting point (32) are spaced apart in the length direction of the longitudinal beam (10) and are both connected to the longitudinal beam (10). The first mounting point (31) is opposite to the first crossbeam (21), and the second mounting point (32) is opposite to the second crossbeam (22). A first control arm mounting assembly (41) and a second control arm mounting assembly (42) are provided. The first control arm mounting assembly (41) is located between both ends of the first crossbeam (21) along its length and between both ends of the second crossbeam (22) ... The first control arm mounting assembly (41) includes a first control arm mounting member (61) and a second control arm mounting member (62). One end of the first control arm mounting member (61) is connected to the inner side of the longitudinal beam (10), and the other end of the first control arm mounting member (61) extends downward and is connected to one end of the first crossbeam (21). One end of the second control arm mounting member (62) is connected to the outer side of the longitudinal beam (10), and the other end of the second control arm mounting member is connected to the first control arm mounting member (61). The first control arm mounting member (61), the second control arm mounting member (62), and the longitudinal beam (10) define the second cavity (52). The first control arm mounting member (61), the second control arm mounting member (62), and the control arm (30) define the third cavity (53).

2. The frame assembly according to claim 1, characterized in that, The control arm (30) includes: Arm body (301); A first arm (302) and a second arm (303), one end of which is connected to the arm body (301). The first arm (302) and the second arm (303) are at an angle to each other and the distance between the first arm (302) and the second arm (303) gradually increases in the direction away from the arm body (301). The end of the first arm (302) away from the arm body (301) forms the first mounting point (31), and the end of the second arm (303) away from the arm body (301) forms the second mounting point (32).

3. The frame assembly according to claim 1, characterized in that, The second control arm mounting assembly (42) includes: The third control arm mounting component (63) has one end connected to the inner side of the longitudinal beam (10), and the other end of the first control arm mounting component (61) extends downward and is connected to the upper end face of the second crossbeam (22). The connection position of the third control arm mounting component (63) and the second crossbeam (22) is spaced apart from the same side end of the second crossbeam (22). A fourth control arm mounting (64) is provided, one end of which is connected to the outer side of the longitudinal beam (10), and the other end of which is connected to the third control arm mounting (63). The third control arm mounting (63), the fourth control arm mounting (64), and the longitudinal beam (10) define the second cavity (52). The third control arm mounting (63), the fourth control arm mounting (64), the control arm (30), and the second crossbeam (22) define the third cavity (53).

4. The frame assembly according to claim 1, characterized in that, A reinforcing plate (70) is provided between the first control arm mounting assembly (41) and the first crossbeam (21), and the first control arm mounting assembly (41), the first crossbeam (21) and the reinforcing plate (70) define a fourth cavity (54); And / or, a reinforcing plate (70) is provided between the second control arm mounting assembly (42) and the second crossbeam (22), the second control arm mounting assembly (42), the second crossbeam (22) and the reinforcing plate (70) defining a fourth cavity (54).

5. The frame assembly according to claim 1, characterized in that, A buffer (80) is provided on the side of the first control arm mounting assembly (41) away from the first crossbeam (21), and the buffer (80), the longitudinal beam (10) and the first control arm mounting assembly (41) define a fifth cavity (55); And / or, a buffer (80) is provided on the side of the second control arm mounting assembly (42) away from the second crossbeam (22), the buffer (80), the longitudinal beam (10) and the second control arm mounting assembly (42) defining a fifth cavity (55).

6. The frame assembly according to claim 1, characterized in that, The frame assembly (100) is symmetrical with respect to a reference plane, which is a plane perpendicular to the first crossbeam (21) and the second crossbeam (22) and parallel to the two longitudinal beams (10).

7. The frame assembly according to claim 1, characterized in that, At least one of the first crossbeam (21) and the second crossbeam (22) includes: The first upper plate (211) and the first lower plate (212) are arranged in the vertical direction, and the two ends of the first upper plate (211) and the first lower plate (212) are connected to each other in the width direction to define the sixth cavity (56).

8. The frame assembly according to claim 7, characterized in that, The sixth cavity (56) is provided with a support plate (90).

9. The frame assembly according to claim 8, characterized in that, Both ends of the support plate (90) are connected to one of the first upper plate (211) and the first lower plate (212), and the middle part of the support plate (90) protrudes and connects to the other of the first upper plate (211) and the first lower plate (212). Alternatively, the two ends of the support plate (90) in the length direction are respectively connected to the opposite inner walls of the sixth cavity (56) in the width direction. In the width direction of the support plate (90), the support plate (90) includes a first bent section (91), a second bent section (92) and a straight section (93). One end of the first bent section (91) and one end of the second bent section (92) are both connected to one of the first upper plate (211) and the first lower plate (212). The two ends of the straight section (93) are respectively connected to the other end of the first bent section (91) and the other end of the second bent section (92). The middle part of the first bent section (91) and the middle part of the second bent section (92) both protrude toward the other of the first upper plate (211) and the first lower plate (212) in the same direction.

10. The frame assembly according to claim 1, characterized in that, The first crossbeam (21) is located on the front side of the second crossbeam (22) along the vehicle body direction.

11. A vehicle, characterized in that, Includes the frame assembly (100) according to any one of claims 1-10.

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