Frame structure and vehicle thereof

Abstract

The utility model relates to a kind of frame structure and its vehicle, comprising: longitudinal beam and crossbeam, longitudinal beam includes oppositely arranged inner abdominal surface and outer abdominal surface, and outer abdominal surface is protruding with first cooperation part;Crossbeam includes crossbeam body and guide section, and crossbeam body is connected with longitudinal beam;Guide section includes first connecting section and second connecting section sequentially connected along its length direction, and first connecting section is connected with the end of crossbeam body, and first connecting section is located between second connecting section and crossbeam body;Guide section has initial position and clamping position;When guide section is located in initial position, the included angle of first connecting section and outer abdominal surface is acute angle;When guide section is located in clamping position, second connecting section is clamped with first cooperation part, to make first connecting section, second connecting section and longitudinal beam form force triangle structure.The frame structure and its vehicle of the scheme are beneficial to reduce the probability of passenger cabin deformation, to ensure the life safety of passengers in vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of automotive collision safety technology, specifically relating to a vehicle frame structure and the vehicle thereof. Background Technology

[0002] The 25% offset crash test (also known as the small overlap frontal crash test) is a type of vehicle crash test primarily used to evaluate a vehicle's ability to protect occupants in a frontal collision, especially when only a portion of the front of the vehicle (25% of its width) overlaps with an obstacle in the collision.

[0003] In existing vehicles, the front crossbeam energy-absorbing box and longitudinal beams of the frame cannot transmit force and collapse in the 25% offset crash test, causing the obstacle to come into direct contact with the A-pillar, resulting in severe deformation of the passenger compartment area and tearing of welds, which seriously affects the life safety of the occupants. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle frame structure and vehicle thereof, which helps to reduce the probability of passenger compartment deformation and thus ensure the safety of the occupants.

[0005] The first aspect of this utility model discloses a vehicle frame structure, including: a longitudinal beam and a crossbeam. The longitudinal beam includes an inner web surface and an outer web surface disposed opposite to each other, and the outer web surface has a first mating part protruding therefrom. The crossbeam includes a crossbeam body and a guide section, and the crossbeam body is connected to the longitudinal beam. The guide section includes a first connecting section and a second connecting section connected sequentially along its length direction. The first connecting section is connected to the end of the crossbeam body, and the first connecting section is located between the second connecting section and the crossbeam body. The guide section has an initial position and a snap-fit ​​position. When the guide section is in the initial position, the angle between the first connecting section and the outer web surface is an acute angle. When the guide section is in the snap-fit ​​position, the second connecting section snaps into the first mating part, so that the first connecting section, the second connecting section, and the longitudinal beam form a force-transmitting triangular structure.

[0006] In an exemplary embodiment of the present invention, the first mating part is provided with a first slot; when the guide segment is located in the snap-fit ​​position, the second connecting segment is snapped into the first slot.

[0007] In an exemplary embodiment of this utility model, the first connecting segment, the second connecting segment, and the longitudinal beam form a force-transmitting right-angled triangle structure, and the first connecting segment is perpendicular to the second connecting segment.

[0008] In an exemplary embodiment of this utility model, the outer ventral surface is provided with a second mating part, and the second mating part is spaced apart from the first mating part; the second connecting section is provided with a second slot; when the guide section is in the snap-fit ​​position, the second mating part is snapped into the second slot.

[0009] In an exemplary embodiment of the present invention, the second connecting segment is provided with a plurality of weight-reducing holes, which are spaced apart from each other.

[0010] In an exemplary embodiment of the present invention, the first connecting segment is provided with a mounting cavity, and one end of the second connecting segment is connected to the mounting cavity; when the guide segment is in the snap-fit ​​position, the other end of the second connecting segment snaps into the first mating part.

[0011] In an exemplary embodiment of the present invention, along the length direction of the longitudinal beam, the height of the first mating part protruding relative to the outer surface gradually increases in the direction away from the guide section to form a guide slope.

[0012] In an exemplary embodiment of this utility model, the longitudinal beam is provided with a sleeve and a fastener. The sleeve is connected between the inner and outer surfaces and is correspondingly provided with the first mating part. The fastener passes through the first mating part, the sleeve, and the longitudinal beam to connect the first mating part and the longitudinal beam.

[0013] In an exemplary embodiment of this utility model, the sleeve includes a pipe body section and a flange section, the flange section is connected between the pipe body section and the inner surface, and the end of the pipe body section away from the flange section is connected to the outer surface; and / or, the longitudinal beam includes a longitudinal beam body and an energy-absorbing box, the energy-absorbing box is connected between the longitudinal beam body and the crossbeam body, and the first mating part protrudes from the outer surface of the longitudinal beam body.

[0014] The second aspect of this utility model discloses a vehicle, including the aforementioned frame structure.

[0015] The present invention has the following beneficial effects:

[0016] In this embodiment of the invention, when the guide section is in the engaging position, the second connecting section engages with the first mating part. Therefore, the first connecting section, the second connecting section, and the longitudinal beam can form a stable force transmission triangle structure, thereby changing the force direction of the vehicle from the X-direction (the length direction of the longitudinal beam) of the entire vehicle to the Y-direction (the length direction of the crossbeam). Thus, when a 25% offset collision occurs and the guide section subjected to the collision force moves from its initial position to the engaging position, the force transmission triangle structure can guide the vehicle to sideslip away from the obstacle in the Y-direction (the length direction of the crossbeam), allowing the A-pillar area to avoid the impact of the obstacle. This helps reduce the probability of deformation of the passenger compartment, thereby ensuring the safety of the occupants.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. The drawings herein are for illustrating the inventive concept of the present invention and are not entirely equivalent to the structure of the actual product protected by the present invention.

[0019] Figure 1 This diagram shows a three-dimensional view of the guide section of the frame structure in an embodiment of the present invention moving from its initial position to its snap-fit ​​position.

[0020] Figure 2 The diagram shows a front view of the guide section of the frame structure in the initial position according to an embodiment of the present invention.

[0021] Figure 3 The diagram shows a front view of the guide section of the frame structure in the snap-fit ​​position according to an embodiment of the present invention.

[0022] Figure 4 An embodiment of the present invention is shown. Figure 1 Enlarged view of section A of the chassis structure.

[0023] Figure 5 An embodiment of the present invention is shown. Figure 2 A cross-sectional view of the frame structure at point BB.

[0024] Figure 6 An embodiment of the present invention is shown. Figure 5 Enlarged view of section C of the chassis structure.

[0025] Figure 7 A schematic diagram of the connection between the first connecting segment and the second connecting segment of the guide segment in an embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Longitudinal beam; 101. Cavity; 11. Longitudinal beam body; 12. Energy-absorbing box; 2. First mating part; 201. First slot; 201a. First slot segment; 201b. Second slot segment; 21. Guide slope; 3. Crossbeam; 302. Second slot; 303. Weight reduction hole; 304. Mounting cavity; 31. Crossbeam body; 32. Guide segment; 321. First connecting segment; 322. Second connecting segment; 3221. Snap-fit ​​part; 3222. Embedded part; 4. Second mating part; 41. First connecting plate; 42. Second connecting plate; 5. Sleeve; 51. Pipe segment; 52. Flange segment; 6. Fastener; 61. Bolt; 62. Nut; a. Inner surface; b. Outer surface; d1. Width of the first slot segment; d2. Width of the second slot segment; x. Length direction of the longitudinal beam; y. Length direction of the crossbeam. Detailed Implementation

[0028] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0029] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figures 1 to 7As shown, this embodiment provides a frame structure, including: a longitudinal beam 1 and a crossbeam 3. The longitudinal beam 1 includes an inner surface a and an outer surface b disposed opposite each other along the length direction y of the crossbeam 3. The outer surface b is provided with a first mating part 2. The crossbeam 3 includes a crossbeam body 31 and a guide section 32. The crossbeam body 31 is connected to the longitudinal beam 1. The guide section 32 includes a first connecting section 321 and a second connecting section 322 connected sequentially along its length direction. The first connecting section 321 is connected to the end of the crossbeam body 31, and the first connecting section 321 is located between the second connecting section 322 and the crossbeam body 31.

[0032] In this embodiment, the frame structure includes two longitudinal beams 1 arranged opposite each other along the length direction y of the crossbeam 3, and the crossbeam body 31 is connected to the two longitudinal beams 1; the crossbeam 3 includes two guide sections 32 arranged opposite each other along the length direction y of the crossbeam 3, and the crossbeam body 31 is connected between the two guide sections 32.

[0033] It should be understood that the following description only details one longitudinal beam 1 and one guide section 32 located on one of the two opposite sides of the crossbeam body 31. The other longitudinal beam 1 and one guide section 32 located on the other of the two opposite sides of the crossbeam body 31 can be implemented with reference to this description.

[0034] Furthermore, the guide section 32 has an initial position and a snap-fit ​​position; when the guide section 32 is in the initial position, the angle between the first connecting section 321 and the outer ventral surface b is an acute angle; when the guide section 32 is in the snap-fit ​​position, the second connecting section 322 snaps into the first mating part 2, so that the first connecting section 321, the second connecting section 322 and the longitudinal beam 1 form a force transmission triangle structure.

[0035] In this embodiment, when the guide section 32 is in the engaging position, the second connecting section 322 engages with the first mating part 2. Therefore, the first connecting section 321, the second connecting section 322, and the longitudinal beam 1 can form a stable force transmission triangle structure, thereby changing the force direction of the vehicle from the X-direction of the entire vehicle (the length direction x of the longitudinal beam 1) to the Y-direction of the entire vehicle (the length direction y of the crossbeam 3). Therefore, when the vehicle experiences a 25% offset collision, and the guide section 32, which is subjected to the collision force, moves from its initial position to the engaging position, the force transmission triangle structure can guide the vehicle to sideslip away from the obstacle in the Y-direction of the entire vehicle (the length direction y of the crossbeam 3), allowing the A-pillar area to avoid the impact of the obstacle. This helps reduce the probability of deformation of the passenger compartment, thereby ensuring the safety of the occupants.

[0036] In this embodiment, combined with Figure 1 and Figure 4As shown, the first mating part 2 is provided with a first slot 201; when the guide section 32 is in the snap-fit ​​position, the second connecting section 322 snaps into the first slot 201. The setting of the first slot 201 makes the snap-fit ​​between the second connecting section 322 and the first mating part 2 more stable, which is conducive to improving the stability of the force transmission triangle structure, thereby ensuring that the vehicle can generate a sideslip deviating from the obstacle in the Y direction (the length direction y of the crossbeam 3) of the whole vehicle.

[0037] In other embodiments, the second connecting segment 322 is provided with a third slot. When the guide segment 32 is in the engaging position, the first mating part 2 engages in the third slot. The provision of the third slot also makes the engagement between the second connecting segment 322 and the first mating part 2 more stable, which is beneficial to improving the stability of the force transmission triangle structure, thereby ensuring that the vehicle can generate a sideslip deviating from the obstacle in the Y direction (the length direction y of the crossbeam 3) of the whole vehicle.

[0038] Combination Figure 3 As shown, the first connecting segment 321 and the second connecting segment 322 form a force-transmitting right-angled triangle structure with the longitudinal beam 1, and the first connecting segment 321 is perpendicular to the second connecting segment 322.

[0039] It should be understood that the force transmission triangle structure can be a right-angled triangle structure or an approximately right-angled triangle structure.

[0040] In this embodiment, when the second connecting segment 322 engages with the first mating part 2, the first connecting segment 321, the second connecting segment 322, and the longitudinal beam 1 form a force-transmitting right-angled triangle structure. Since a right-angled triangle has higher stability than other shapes, the force-transmitting right-angled triangle structure has high stability, which helps reduce the probability of deformation of the force-transmitting right-angled triangle structure, thereby ensuring that the vehicle can sideslip away from obstacles in the Y-direction (the length direction y of the crossbeam 3) of the entire vehicle.

[0041] Combination Figures 1 to 4 As shown, the outer ventral surface b is provided with a second mating part 4, which is spaced apart from the first mating part 2; the second connecting section 322 is provided with a second slot 302; when the guide section 32 is in the snap-fit ​​position, the second mating part 4 is snapped into the second slot 302.

[0042] In this embodiment, when the guide section 32 is in the engaging position, the second connecting section 322 engages with the first mating part 2 and simultaneously engages with the second mating part 4, which helps to improve the stability of the connection between the second connecting section 322 and the longitudinal beam 1. Furthermore, the provision of the second slot 302 makes the engagement between the second connecting section 322 and the second mating part 4 more stable, further improving the stability of the force transmission triangle structure. This ensures that the vehicle can achieve sideslip in the Y-direction (the length direction y of the crossbeam 3) of the entire vehicle, avoiding impact from obstacles in the A-pillar area.

[0043] It should be understood that, since the second mating part 4 protrudes relative to the outer abdominal surface b, when the protrusion height of the second mating part 4 relative to the outer abdominal surface b is greater than the depth of the second slot 302, the second mating part 4, which is engaged in the second slot 302, will be squeezed and deformed to ensure that the second connecting section 322 can be engaged in the first slot 201.

[0044] Combination Figure 2 As shown, the second connecting section 322 is provided with multiple weight reduction holes 303, which are spaced apart from each other.

[0045] It should be understood that "multiple" refers to two or more quantities, such as two, three, etc.

[0046] For example, the number of weight reduction holes 303 can be two, three, four, etc.

[0047] In this embodiment, the second connecting section 322 is provided with two mutually spaced weight-reducing holes 303. The weight-reducing holes 303 can reduce the weight of the second connecting section 322, thereby helping to reduce the weight of the frame structure.

[0048] Combination Figure 3 and Figure 7 As shown, the first connecting section 321 is provided with a mounting cavity 304, and one end of the second connecting section 322 is connected to the mounting cavity 304; when the guide section 32 is in the snap-fit ​​position, the other end of the second connecting section 322 is snap-fitted with the first mating part 2.

[0049] In this embodiment, the second connecting segment 322 has an "axe-shaped" structure. The second connecting segment 322 includes a snap-fit ​​portion 3221 and an embedded portion 3222. The snap-fit ​​portion 3221 is connected to the embedded portion 3222. The snap-fit ​​portion 3221 is used to snap into the first slot 201, and the second slot 302 is located within the snap-fit ​​portion 3221. The embedded portion 3222 is located within the mounting cavity 304 and is fixedly connected to the first connecting segment 321. The embedded portion 3222 is disposed within the mounting cavity 304 of the first connecting segment 321. The embedded portion 3222 can enhance the rigidity of the first connecting segment 321, thereby ensuring the rigidity of the force transmission triangle structure.

[0050] It should be understood that when a vehicle is involved in a 25% offset collision, if the rigidity of the first connecting segment 321 is low, the first connecting segment 321 may deform, causing the guide segment 32 to fail to move from its initial position to the engaging position. Therefore, the embedded portion 3222 needs to be disposed within the mounting cavity 304 to improve the rigidity of the first connecting segment 321.

[0051] In this embodiment, the length of the embedded portion 3222 located within the mounting cavity 304 is less than the length of the first connecting segment 321, and the length of the embedded portion 3222 located within the mounting cavity 304 is greater than three-quarters of the length of the first connecting segment 321. The longer the embedded portion 3222 located within the mounting cavity 304, the greater the increase in rigidity of the embedded portion 3222 on the first connecting segment 321.

[0052] For example, the length of the embedded part 3222 located in the mounting cavity 304 can be four-fifths, five-sixths, or nine-tenths of the length of the first connecting segment 321.

[0053] In this embodiment, the second connecting section 322 is made of 6082 aluminum alloy. Aluminum alloy has the advantage of being lighter, thus achieving the effect of lightweighting the crossbeam 3. The second connecting section 322 is formed by extrusion. The mold cost of extrusion is relatively low, and the material utilization rate is high.

[0054] It should be understood that the main components of aluminum alloy No. 6082 are magnesium (0.6%~1.2%), silicon (0.7%~1.3%), manganese (0.4%~1.0%), and aluminum (balance), and contain trace amounts of iron, chromium, etc.

[0055] Combination Figure 2 and Figure 3 As shown, along the length x of the longitudinal beam 1, the height of the first mating part 2 protruding relative to the outer surface b gradually increases in the direction away from the guide section 32 to form the guide slope 21.

[0056] In this embodiment, the first mating part 2 is provided with a guide ramp 21. The height by which the first mating part 2 protrudes relative to the outer abdominal surface b is the distance between the guide ramp 21 and the outer abdominal surface b. The distance between the guide ramp 21 and the outer abdominal surface b gradually increases in the direction away from the guide section 32, so that when the obstacle is in continuous contact with the guide ramp 21, the distance between the obstacle and the outer abdominal surface b gradually increases, thereby increasing the distance between the vehicle and the obstacle to avoid the passenger compartment being impacted by the obstacle.

[0057] It should be understood that when a 25% offset collision occurs, after the obstacle contacts the guide section 32 of the force transmission triangle structure, the obstacle may continue to move along the X-direction (the length direction x of the longitudinal beam 1) of the entire vehicle. At this time, the guide ramp 21 of the first mating part 2 can also guide the vehicle to sideslip away from the obstacle in the Y-direction (the length direction y of the crossbeam 3) of the entire vehicle, so that the A-pillar area avoids the impact of the obstacle, which helps to reduce the probability of deformation of the passenger compartment and ensure the safety of the occupants.

[0058] In this embodiment, the angle between the guide slope 21 and the outer ventral surface b ranges from 20° to 40°.

[0059] For example, the angle between the guide slope 21 and the outer ventral surface b can be 20°, 25°, 30°, 35°, 40°, etc.

[0060] Preferably, the angle between the guide slope 21 and the outer ventral surface b is 30°.

[0061] In this embodiment, the first mating part 2 is an aluminum structure and is formed by die casting. The first mating part 2 can provide strong rigidity to prevent the guide slope 21 from deforming when it comes into contact with an obstacle.

[0062] In this embodiment, combined with Figure 2 and Figure 5 As shown, the longitudinal beam 1 has a cavity 101, and a sleeve 5 is provided inside the cavity 101. The sleeve 5 connects the inner abdominal surface a and the outer abdominal surface b, and the sleeve 5 is correspondingly arranged with the first mating part 2. The sleeve 5 is located inside the cavity 101 of the longitudinal beam 1. The sleeve 5 can provide a certain support for the longitudinal beam 1, which helps to improve the stiffness of the cavity 101 in the Y direction (the length direction y of the crossbeam 3) of the whole vehicle, so as to avoid deformation of the longitudinal beam 1.

[0063] It should be understood that when a 25% offset collision occurs and the guide section 32 moves from the initial position to the engaging position, part of the collision force will be transmitted through the guide section 32 to the first mating part 2 and then to the longitudinal beam 1. Therefore, a sleeve 5 needs to be installed inside the cavity 101 of the longitudinal beam 1 to support the cavity 101 of the longitudinal beam 1.

[0064] Furthermore, a fastener 6 is provided inside the cavity 101 of the longitudinal beam 1. The fastener 6 passes through the first mating part 2, the sleeve 5 and the longitudinal beam 1 to connect the first mating part 2 and the longitudinal beam 1.

[0065] In this embodiment, combined with Figure 5 and Figure 6 As shown, the fastener 6 includes a bolt 61 and a nut 62. The bolt 61 passes through the first mating part 2, the outer surface b, the sleeve 5 and the inner surface a in sequence, and is tightened with the nut 62 to realize the connection between the first mating part 2 and the longitudinal beam 1.

[0066] Combination Figure 6 As shown, the sleeve 5 includes a pipe body section 51 and a flange section 52. The flange section 52 is connected between the pipe body section 51 and the inner surface a. The end of the pipe body section 51 away from the flange section 52 is connected to the outer surface b. The outer diameter of the pipe body section 51 is smaller than the outer diameter of the flange section 52.

[0067] In this embodiment, since the outer diameter of the tube section 51 is smaller than the outer diameter of the flange section 52, the contact area between the flange section 52 and the inner surface a is larger than the contact area between the tube section 51 and the outer surface b. This avoids stress concentration on the inner surface a, thereby preventing the sleeve 5 from intruding into the crew compartment along the direction from the outer surface b to the inner surface a after being subjected to a collision force.

[0068] In this embodiment, combined with Figure 4 and Figure 5 As shown, the first slot 201 includes a first slot segment 201a and a second slot segment 201b that are interconnected, with the end of the bolt 61 located within the second slot segment 201b. When the second connecting segment 322 engages with the first mating part 2, the second connecting segment 322 engages within the first slot segment 201a. Furthermore, the width d1 of the first slot segment 201a is greater than the width d2 of the second slot segment 201b, to ensure that when the second connecting segment 322 engages with the first mating part 2, the end of the second connecting segment 322 furthest from the first connecting segment 321 can correspondingly engage within the first slot segment 201a.

[0069] In this embodiment, the longitudinal beam 1 includes a longitudinal beam body 11 and an energy-absorbing box 12. The energy-absorbing box 12 is connected between the longitudinal beam body 11 and the crossbeam body 31. The first mating part 2 protrudes from the outer surface b of the longitudinal beam body 11. Since the rigidity of the longitudinal beam body 11 is greater than that of the energy-absorbing box 12, the first mating part 2 is protruding from the outer surface b of the longitudinal beam body 11 to ensure the stability of the engagement between the second connecting section 322 and the first mating part 2.

[0070] In this embodiment, combined with Figure 4 As shown, the longitudinal beam body 11 has a first connecting plate 41 at one end near the energy-absorbing box 12, and the energy-absorbing box 12 has a second connecting plate 42 at one end near the longitudinal beam body 11. The first connecting plate 41 and the second connecting plate 42 are connected to achieve the connection between the longitudinal beam body 11 and the energy-absorbing box 12. The second mating part 4 includes the first connecting plate 41 and the second connecting plate 42, and the first connecting plate 41 is spaced apart from the first mating part 2.

[0071] This embodiment provides a vehicle including the aforementioned frame structure.

[0072] For other aspects of the vehicle's structure, please refer to existing technology; details will not be elaborated here.

[0073] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., 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 this utility model.

[0075] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0076] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention. Therefore, all changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the patent coverage of the present invention.

Claims

1. A vehicle frame structure, characterized in that, include: The longitudinal beam includes an inner web surface and an outer web surface that are arranged opposite to each other, and the outer web surface is provided with a first mating part; A crossbeam, comprising a crossbeam body and a guide section, wherein the crossbeam body is connected to the longitudinal beam; the guide section comprises a first connecting section and a second connecting section connected sequentially along its length, wherein the first connecting section is connected to the end of the crossbeam body and is located between the second connecting section and the crossbeam body; The guide segment has an initial position and a snap-fit ​​position; when the guide segment is in the initial position, the angle between the first connecting segment and the outer ventral surface is an acute angle; When the guide section is in the snap-fit ​​position, the second connecting section snaps into the first mating part, so that the first connecting section, the second connecting section, and the longitudinal beam form a force transmission triangle structure.

2. The frame structure according to claim 1, characterized in that, The first mating part is provided with a first slot; When the guide segment is in the snap-fit ​​position, the second connecting segment snaps into the first slot.

3. The frame structure according to claim 1, characterized in that, The first connecting segment, the second connecting segment, and the longitudinal beam form a force-transmitting right-angled triangle structure, and the first connecting segment is perpendicular to the second connecting segment.

4. The frame structure according to claim 1, characterized in that, The outer ventral surface is provided with a second mating part, and the second mating part is spaced apart from the first mating part; The second connecting section is provided with a second slot; When the guide section is in the snap-fit ​​position, the second mating part snaps into the second slot.

5. The frame structure according to claim 1, characterized in that, The second connecting section is provided with a plurality of weight-reducing holes, which are spaced apart from each other.

6. The frame structure according to claim 1, characterized in that, The first connecting segment has a mounting cavity, and one end of the second connecting segment is connected to the mounting cavity; when the guide segment is in the snap-fit ​​position, the other end of the second connecting segment snaps into the first mating part.

7. The frame structure according to claim 1, characterized in that, Along the length of the longitudinal beam, the height of the first mating part protruding relative to the outer surface gradually increases in the direction away from the guide section to form a guide slope.

8. The frame structure according to claim 1, characterized in that, The longitudinal beam is provided with a sleeve and fasteners. The sleeve is connected between the inner and outer surfaces and is correspondingly provided with the first mating part. The fasteners are inserted through the first mating part, the sleeve, and the longitudinal beam to connect the first mating part and the longitudinal beam.

9. The frame structure according to claim 8, characterized in that, The sleeve includes a tube body section and a flange section, the flange section connecting the tube body section to the inner surface, and the end of the tube body section away from the flange section connecting to the outer surface; and / or The longitudinal beam includes a longitudinal beam body and an energy-absorbing box. The energy-absorbing box is connected between the longitudinal beam body and the crossbeam body. The first mating part protrudes from the outer surface of the longitudinal beam body.

10. A vehicle, characterized in that, Includes the frame structure as described in any one of claims 1-9.

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