Frame assembly and vehicle thereof

Abstract

The frame assembly comprises a first longitudinal beam, a second longitudinal beam, a front cross beam and a rear cross beam, the front cross beam and the rear cross beam are connected between the first longitudinal beam and the second longitudinal beam, the front cross beam and the rear cross beam are arranged in a spaced mode, and a mounting space is formed by the front cross beam, the rear cross beam, the first longitudinal beam and the second longitudinal beam; each of the front cross beam and the rear cross beam comprises an upper wing surface and a lower wing surface, the frame assembly further comprises a waterproof protective plate and a power distribution device, one end of the waterproof protective plate is connected to the front cross beam, and the other end of the waterproof protective plate is connected to the rear cross beam and covers the mounting space; the power distribution device is connected to the upper wing surface of the rear cross beam, and the orthographic projection of the power distribution device in the direction from the lower wing surfaces of the rear cross beam and the front cross beam to the upper wing surfaces of the rear cross beam and the front cross beam is located in the waterproof protection plate. According to the vehicle frame assembly and the vehicle with the vehicle frame assembly, water splashed in the advancing process of the vehicle can be blocked, water is prevented from entering the interface of the power distribution device, and then the probability that the vehicle breaks down during traveling is reduced; and air flow can be optimized, and air resistance of the whole vehicle is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile equipment, and specifically relates to a frame assembly and a vehicle thereof. Background Art

[0002] For new energy vehicles, the power distribution unit (PDU) is one of the indispensable components, which can provide suitable rack-mounted power distribution solutions for different power supply environments. In the application of PDU, there will be problems with interface plugging, which requires certain waterproofing treatment, otherwise it will cause a series of driving failures. In an existing project, because waterproofing was not considered in the early development, water entered the plug and caused vehicle problems during the trial production and verification phase, which urgently needs optimization and improvement.

[0003] The Chinese patent with the patent number CN219029325U discloses a waterproof guard plate under the chassis of a pure electric heavy-duty truck, which can meet the requirements of waterproofing and drainage, but it is aimed at heavy-duty trucks with complex structures, many related parts, large weight and volume, and inconvenience in disassembly and replacement. Utility Model Content

[0004] The purpose of the present application is to provide a frame assembly and a vehicle thereof, which can not only block water splashed when the vehicle is moving, avoid water from entering the interface of the power distribution device, and thus reduce the probability of driving failure problems of the vehicle; but also optimize gas flow and reduce the air resistance of the whole vehicle.

[0005] The first aspect of the present application discloses a frame assembly, comprising: a first longitudinal beam, a second longitudinal beam, and a front cross beam and a rear cross beam connected between the first longitudinal beam and the second longitudinal beam, the front cross beam and the rear cross beam are spaced apart, and form an installation space with the first longitudinal beam and the second longitudinal beam; the front cross beam and the rear cross beam each include an upper wing surface and a lower wing surface that are relatively arranged, and the frame assembly also includes: a waterproof guard plate, one end of the waterproof guard plate is connected to the front cross beam by bolts, the other end of the waterproof guard plate is connected to the rear cross beam by bolts, and covers the installation space from the rear cross beam and the lower wing surface of the front cross beam toward the upper wing surface of the rear cross beam and the front cross beam; a power distribution device, the power distribution device is connected to the upper wing surface of the rear cross beam, and the orthographic projection of the power distribution device from the lower wing surface of the rear cross beam and the front cross beam toward the upper wing surface of the rear cross beam and the front cross beam is located inside the waterproof guard plate.

[0006] In an exemplary embodiment of the present application, the frame assembly also includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket are arranged to be spaced apart from each other, the first mounting bracket and the second mounting bracket are welded to the rear ventral surface of the rear cross beam, and the rear ventral surface of the rear cross beam is connected between the upper wing surface of the rear cross beam and the lower wing surface of the rear cross beam; the waterproof guard plate is connected to the first mounting bracket and the second mounting bracket by bolts.

[0007] In an exemplary embodiment of the present application, the first mounting bracket and the second mounting bracket each include a reinforcing portion, a transverse portion and a vertical portion, the transverse portion and the vertical portion are connected to form an "L"-shaped structure, the reinforcing portion is connected to the connection between the transverse portion and the vertical portion, the transverse portion is bolted to the waterproof guard plate, and the vertical portion is welded to the rear ventral surface of the rear cross beam.

[0008] In an exemplary embodiment of the present application, the waterproof protective plate includes a waterproof main body and a plurality of raised portions, wherein the raised portions are arranged on the waterproof main body and protrude relative to the plate surface of the waterproof main body, the raised portions are connected to the front cross beam and the rear cross beam by bolts, and the waterproof main body is spaced apart from the front cross beam and the rear cross beam.

[0009] In an exemplary embodiment of the present application, the waterproof protective plate is provided with a plurality of leakage holes penetrating the waterproof protective plate, and the plurality of leakage holes are arranged at intervals from each other.

[0010] In an exemplary embodiment of the present application, a plurality of reinforcing ribs are provided on the bottom surface of the waterproof protective plate away from the rear cross beam and the front cross beam, and the plurality of reinforcing ribs are protruding relative to the plate surface of the waterproof main body.

[0011] In an exemplary embodiment of the present application, the reinforcing ribs are parallel to each other, and an extending direction of the reinforcing ribs is parallel to a length direction of the first longitudinal beam or the second longitudinal beam.

[0012] In an exemplary embodiment of the present application, the waterproof protective plate includes a waterproof main board portion and a flange portion arranged around the waterproof main board portion, and the board surface of the flange portion intersects with the board surface of the waterproof main board portion; the flange portion extends from the waterproof main board portion toward the installation space.

[0013] A second aspect of the present application discloses a vehicle, comprising a battery pack and the frame assembly, wherein the battery pack is connected to the frame assembly.

[0014] In an exemplary embodiment of the present application, the vehicle further includes a rear suspension bracket, the rear suspension bracket is connected to the frame assembly, and an avoidance hole is provided on the waterproof guard plate to avoid the rear suspension bracket.

[0015] This application scheme has the following beneficial effects:

[0016] In the embodiment of the present application, since the vehicle may cause splashing of accumulated water during the driving process, the wiring harness interface of the power distribution device may easily cause the whole vehicle to fail after water enters. Therefore, a waterproof protective plate that can cover the installation space is provided on the lower wing surface of the rear crossbeam and the front crossbeam. The waterproof protective plate can block the water splashed by the vehicle during the driving process, prevent the interface of the power distribution device from entering the water, and thus reduce the probability of driving failure problems of the vehicle. In addition, after adding waterproof protective plates to the lower wing surface of the rear crossbeam and the lower wing surface of the front crossbeam, the airflow flows from the front of the vehicle to the rear of the vehicle and follows the waterproof protective plate during the driving process of the vehicle. Compared with the case without the waterproof protective plate, the airflow will be smoother. The waterproof protective plate can optimize the gas flow, thereby playing a role in reducing the air resistance of the whole vehicle.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. Among them, the drawings here are used to represent the utility model concept of the present application, and are not completely equivalent to the structure of the actual product protected by the present application.

[0019] Figure 1 A schematic diagram of the assembly structure of the vehicle frame assembly in an embodiment of the present application is shown.

[0020] Figure 2 A schematic cross-sectional structure diagram of the waterproof guard plate and the front crossbeam in an embodiment of the present application is shown.

[0021] Figure 3 The present application embodiment is shown Figure 2 Schematic diagram of the enlarged structure of the waterproof guard plate and the front crossbeam at A.

[0022] Figure 4 The present application embodiment is shown Figure 2 Schematic diagram of the enlarged structure of the waterproof guard plate and the front crossbeam at B.

[0023] Figure 5 A schematic cross-sectional structure diagram of the waterproof guard plate and the rear cross beam in an embodiment of the present application is shown.

[0024] Figure 6 The present application embodiment is shown Figure 5 Schematic diagram of the enlarged structure of the waterproof guard plate and the rear crossbeam at C.

[0025] Figure 7 The present application embodiment is shown Figure 5 Schematic diagram of the enlarged structure of the waterproof guard plate and the rear cross beam at D.

[0026] Figure 8 A schematic diagram of the three-dimensional structure of the vehicle frame assembly in an embodiment of the present application without a waterproof guard plate is shown.

[0027] Fig. 9 The present application embodiment is shown Figure 8 An enlarged structural diagram of the frame assembly P in FIG.

[0028] Fig.10 The present application embodiment is shown Figure 8 An enlarged structural diagram of the frame assembly M in FIG.

[0029] Fig.11 The present application embodiment is shown Figure 8 An enlarged structural schematic diagram of the frame assembly N in FIG.

[0030] Fig.12 A schematic diagram of the three-dimensional structure of the mounting bracket in the embodiment of the present application is shown.

[0031] Fig.13 A front view structural schematic diagram of the mounting bracket in an embodiment of the present application is shown.

[0032] Fig.14 A schematic diagram of the top structure of the mounting bracket in the embodiment of the present application is shown.

[0033] Fig.15 The present application embodiment is shown Fig.13 Schematic diagram of the cross-sectional structure at the mounting bracket FF.

[0034] Fig.16 A schematic diagram of the three-dimensional structure of the waterproof protective plate in an embodiment of the present application is shown.

[0035] Fig.17 A schematic diagram of the front view structure of the waterproof protective plate in an embodiment of the present application is shown.

[0036] Fig.18 A schematic diagram of the top view of the waterproof protective plate in an embodiment of the present application is shown.

[0037] Fig.19 A left-side structural schematic diagram of the waterproof protective plate in an embodiment of the present application is shown.

[0038] Description of reference numerals:

[0039] 1. Subframe; 101. Installation space; 102. Second installation hole; 11. First longitudinal beam; 12. Second longitudinal beam; 13. Front cross beam; 14. Rear cross beam; 2. Waterproof guard plate; 201. First through hole; 202. Second through hole; 203. Third through hole; 204. Fourth through hole; 205. Leakage hole; 206. First gully; 207. Second gully; 208. Third gully; 209. Avoidance hole; 21. Waterproof main board; 21 a. Waterproof main body; 21b. Raised portion; 22. Reinforcing ribs; 23. Flanged portion; 23a. First flanging portion; 23b. Second flanging portion; 23c. Third flanging portion; 23d. Fourth flanging portion; 3. Power distribution device; 4. First mounting bracket; 401. First mounting hole; 5. Second mounting bracket; 6. Bolt; 7. Nut; a. Upper wing surface; b. Lower wing surface; c. Rear ventral surface; d. Horizontal portion; e. Vertical portion; f. Reinforced portion. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0041] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0042] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application 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 are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0043] like Figures 1 to 19 As shown, this embodiment provides a frame assembly, including: a first longitudinal beam 11, a second longitudinal beam 12, and a front cross beam 13 and a rear cross beam 14 connected between the first longitudinal beam 11 and the second longitudinal beam 12, the front cross beam 13 and the rear cross beam 14 are arranged at intervals, and form an installation space 101 with the first longitudinal beam 11 and the second longitudinal beam 12; the front cross beam 13 and the rear cross beam 14 both include an upper wing surface a and a lower wing surface b arranged opposite to each other.

[0044] In this embodiment, the front cross beam 13 and the rear cross beam 14 are connected between the first longitudinal beam 11 and the second longitudinal beam 12 by welding, and form a closed "rectangular" structure with the first longitudinal beam 11 and the second longitudinal beam 12. The formed "rectangular" structure can provide a reliable base for the assembly of the waterproof guard plate 2 to ensure the reliability of the assembly of the waterproof guard plate 2.

[0045] It should be understood that, since the subframe 1 of the vehicle is composed of a plurality of longitudinal beams and a plurality of cross beams, the first longitudinal beam 11 , the second longitudinal beam 12 , the front cross beam 13 and the rear cross beam 14 are all part of the subframe 1 .

[0046] Furthermore, the frame assembly also includes: a waterproof guard plate 2 and a power distribution device 3, one end of the waterproof guard plate 2 is connected to the front cross beam 13 by bolts 6, and the other end of the waterproof guard plate 2 is connected to the rear cross beam 14 by bolts 6, and covers the installation space 101 from the lower wing surface b of the rear cross beam 14 and the front cross beam 13 toward the upper wing surface a of the rear cross beam 14 and the front cross beam 13; the power distribution device 3 is connected to the upper wing surface a of the rear cross beam 14, and the orthographic projection of the power distribution device 3 from the lower wing surface b of the rear cross beam 14 and the front cross beam 13 toward the upper wing surface a of the rear cross beam 14 and the front cross beam 13 is located inside the waterproof guard plate 2.

[0047] In this embodiment, since splashing of accumulated water may occur when the vehicle is moving, water may enter the wiring harness interface of the power distribution device 3, which may easily cause failure of the entire vehicle. Therefore, a waterproof protective plate 2 capable of covering the installation space 101 is provided on the lower wing surface b of the rear cross beam 14 and the front cross beam 13. The waterproof protective plate 2 can block water splashing when the vehicle is moving, prevent water from entering the interface of the power distribution device 3, and thereby reduce the probability of driving failure problems of the vehicle.

[0048] In addition, after a waterproof guard plate 2 is added to the lower wing surface b of the rear cross beam 14 and the lower wing surface b of the front cross beam 13, during the movement of the vehicle, the airflow flows from the front of the vehicle to the rear of the vehicle and along the waterproof guard plate 2. Compared with when there is no waterproof guard plate 2, the airflow will be smoother. The waterproof guard plate 2 can optimize the gas flow, thereby reducing the air resistance of the entire vehicle.

[0049] Combination Figure 1 and Figure 5 As shown, the frame assembly also includes a first mounting bracket 4 and a second mounting bracket 5, the first mounting bracket 4 and the second mounting bracket 5 are arranged at an interval, the first mounting bracket 4 and the second mounting bracket 5 are welded to the rear ventral surface c of the rear cross beam 14, and the rear ventral surface c of the rear cross beam 14 is connected between the upper wing surface a of the rear cross beam 14 and the lower wing surface b of the rear cross beam 14; the waterproof guard plate 2 is connected to the first mounting bracket 4 and the second mounting bracket 5 by bolts 6.

[0050] In this embodiment, the first mounting bracket 4 and the second mounting bracket 5 are welded to the rear belly surface c of the rear cross beam 14, and the waterproof guard plate 2 is connected to the first mounting bracket 4 and the second mounting bracket 5 by bolts 6, that is, the waterproof guard plate 2 is connected to the rear cross beam 14 by the first mounting bracket 4 and the second mounting bracket 5. Among them, the first mounting bracket 4 and the second mounting bracket 5 are both provided with a first mounting hole 401, and the bolt 6 passes through the waterproof guard plate 2 and the first mounting hole 401 and is connected to the nut 7, so that the waterproof guard plate 2 can be reliably fixed on the first mounting bracket 4 and the second mounting bracket 5 to achieve the connection between the waterproof guard plate 2 and the rear cross beam 14. In addition, the waterproof guard plate 2 is connected to the first mounting bracket 4 and the second mounting bracket 5 by bolts 6, which is convenient for assembling, disassembling, replacing and repairing the waterproof guard plate 2 to improve the convenience of operation.

[0051] It should be understood that the front cross beam 13 and the rear cross beam 14 both include a front belly surface, a rear belly surface c, an upper wing surface a and a lower wing surface b, the front belly surface and the rear belly surface c are relatively arranged, and the front belly surface and the rear belly surface c are both connected between the upper wing surface a and the lower wing surface b, and the rear belly surface c is farther away from the front part of the vehicle than the front belly surface.

[0052] Combination Figure 8 and Fig.12 As shown, the first mounting bracket 4 and the second mounting bracket 5 both include a reinforcing portion f, a transverse portion d and a vertical portion e. The transverse portion d and the vertical portion e are connected to form an "L"-shaped structure. The reinforcing portion f is connected to the connection between the transverse portion d and the vertical portion e. The transverse portion d is connected to the waterproof guard plate 2 by bolts 6, and the vertical portion e is welded to the rear ventral surface c of the rear cross beam 14.

[0053] In this embodiment, the first mounting hole 401 is located in the horizontal portion d, and is used to realize the connection between the waterproof guard plate 2 and the first mounting bracket 4 and the second mounting bracket 5; the vertical portion e is welded to the rear belly surface c of the rear cross beam 14, and the vertical portion e is reliably connected to the rear cross beam 14. The horizontal portion d and the vertical portion e are connected to form an "L"-shaped structure, so that the coverage area of ​​the waterproof guard plate 2 can extend in the direction away from the front cross beam 13, so as to completely cover the power distribution device 3 and prevent water from entering the interface of the power distribution device 3.

[0054] In addition, the reinforcement portion f can improve the reliability and stability of the assembly of the first mounting bracket 4 and the second mounting bracket 5 to a certain extent.

[0055] It should be understood that since the size of the power distribution device 3 along the length direction of the first longitudinal beam 11 is larger than the size of the rear cross beam 14 along the length direction of the first longitudinal beam 11, and interfaces are provided at both ends of the power distribution device 3 along the length direction of the first longitudinal beam 11, the end of the power distribution device 3 located in the installation space 101 has been covered by the waterproof protective plate 2. Therefore, the waterproof protective plate 2 needs to extend in a direction away from the front cross beam 13 to ensure that the power distribution device 3 is completely covered.

[0056] In this embodiment, combined with Figure 8 As shown, the lower wing surface b of the front cross beam 13 is provided with a second mounting hole 102 for realizing reliable fixation of the waterproof guard plate 2 and the front cross beam 13 .

[0057] Combination Figure 1 , Figure 2 and Fig.16 As shown, the waterproof guard plate 2 includes a waterproof main body 21a and a plurality of raised portions 21b. The raised portions 21b are arranged on the waterproof main body 21a and protrude relative to the plate surface of the waterproof main body 21a. The raised portions 21b are connected to the front cross beam 13 and the rear cross beam 14 through bolts 6. The waterproof main body 21a is spaced apart from the front cross beam 13 and the rear cross beam 14.

[0058] In this embodiment, the shape of the raised portion 21b is similar to a "boss" structure. The raised portion 21b can not only ensure that a certain gap is maintained between the waterproof main body 21a and the front beam 13 and the rear beam 14 to avoid interference and abnormal noise problems, but also improve the rigidity performance of the installation area of ​​the waterproof guard plate 2 to meet the assembly of the bolts 6 and ensure the reliability of the installation.

[0059] It should be understood that the protruding height of the protruding portion 21b should be greater than the height of the nut of the bolt 6, so that the bolt 6 can be completely installed in the protruding portion 21b to prevent the bolt 6 from interfering with other components.

[0060] In this embodiment, combined with Figures 2 to 11 as well as Fig.17 As shown, the waterproof guard plate 2 includes four convex portions 21b spaced apart from each other, and the center position of the convex portion 21b is respectively provided with a first through hole 201, a second through hole 202, a third through hole 203 and a fourth through hole 204, so as to ensure that the bolt 6 is evenly stressed after being tightened in the convex portion 21b. In addition, the first through hole 201 and the second through hole 202 are matched with the first mounting hole 401, so as to ensure the correspondence and accuracy of the assembly between the waterproof guard plate 2 and the first mounting bracket 4 and the second mounting bracket 5; the third through hole 203 and the fourth through hole 204 are matched with the second mounting hole 102, so as to ensure the correspondence and accuracy of the assembly between the waterproof guard plate 2 and the front cross beam 13.

[0061] Combination Fig.17As shown, the waterproof protective plate 2 is provided with a plurality of leakage holes 205 penetrating the waterproof protective plate 2, and the plurality of leakage holes 205 are arranged at intervals from each other.

[0062] In this embodiment, in order to discharge the moisture remaining on the waterproof protective plate 2 during the wading process, a number of leakage holes 205 are opened on the waterproof protective plate 2. The leakage holes 205 are evenly distributed on the waterproof protective plate 2, which can simultaneously discharge the remaining moisture on the waterproof protective plate 2 and speed up the discharge of the remaining moisture.

[0063] Combination Figure 5 and Fig.18 As shown, a plurality of reinforcing ribs 22 are provided on the bottom surface of the waterproof guard plate 2 away from the rear cross beam 14 and the front cross beam 13 , and the plurality of reinforcing ribs 22 are protruded relative to the plate surface of the waterproof main body 21 a .

[0064] In this embodiment, the reinforcing ribs 22 can ensure that the waterproof protective plate 2 has sufficient rigidity and strength, thereby avoiding large deformation and cracking problems that would affect the waterproof effect of the waterproof protective plate 2 .

[0065] Combination Fig.17 As shown, the reinforcing ribs 22 are parallel to each other, and the extending direction of the reinforcing ribs 22 is parallel to the length direction of the first longitudinal beam 11 or the second longitudinal beam 12 .

[0066] In this embodiment, the shape of the reinforcing rib 22 is approximately "rectangular", and the extending direction of the reinforcing rib 22 is the same as the forward direction of the vehicle, ensuring uniform force on the waterproof guard plate 2. At the same time, the extending direction of the reinforcing rib 22 is the same as the direction of gas flow, which can reduce the air resistance of the whole vehicle.

[0067] Combination Fig.16 As shown, the waterproof protective plate 2 includes a waterproof main board part 21 and a flange part 23 arranged around the waterproof main board part 21, and the board surface of the flange part 23 intersects with the board surface of the waterproof main board part 21; the flange part 23 extends from the waterproof main board part 21 toward the installation space 101.

[0068] In this embodiment, the waterproof main board part 21 includes a waterproof main body part 21a and a plurality of raised parts 21b. In order to meet the waterproof requirements of the interface of the power distribution device 3, the waterproof protective plate 2 is provided with a flange part 23. The flange part 23 encloses the space on the side of the waterproof main board part 21, and the flange part 23 extends from the waterproof main board part 21 toward the installation space 101, so that splashing water is not easy to enter the interface of the power distribution device 3, thereby ensuring the safety of the operation of the whole vehicle.

[0069] Specifically, the flange portion 23 includes a first flange portion 23a, a second flange portion 23b, a third flange portion 23c and a fourth flange portion 23d. The first flange portion 23a, the second flange portion 23b, the third flange portion 23c and the fourth flange portion 23d are arranged around the waterproof main board portion 21. The first flange portion 23a and the third flange portion 23c are arranged relatively to each other to waterproof the area of ​​the waterproof guard plate 2 along the direction of the front cross beam 13 toward the rear cross beam 14. The second flange portion 23b and the fourth flange portion 23d are arranged relatively to each other to waterproof the area of ​​the waterproof guard plate 2 along the direction of the first longitudinal beam 11 toward the second longitudinal beam 12.

[0070] In this embodiment, the waterproof protective plate 2 is provided with a first groove 206, a second groove 207 and a third groove 208 to meet the peripheral arrangement and process forming requirements of the waterproof protective plate 2.

[0071] This embodiment also provides a vehicle, including a battery pack and the above-mentioned frame assembly, wherein the battery pack is connected to the frame assembly.

[0072] In this embodiment, the vehicle further includes a rear suspension bracket, which is connected to the frame assembly. An avoidance hole 209 is provided on the waterproof guard plate 2 to avoid the rear suspension bracket and prevent interference between the waterproof guard plate 2 and the rear suspension bracket.

[0073] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined. And the description of the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0075] The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradicting each other.

[0076] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made according to the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A vehicle frame assembly, characterized in that: include: A first longitudinal beam, a second longitudinal beam, and a front cross beam and a rear cross beam connected between the first longitudinal beam and the second longitudinal beam, the front cross beam and the rear cross beam are arranged at intervals and form an installation space with the first longitudinal beam and the second longitudinal beam; the front cross beam and the rear cross beam each include an upper wing surface and a lower wing surface arranged oppositely, and the frame assembly further includes: A waterproof guard plate, one end of which is connected to the front cross beam by bolts, the other end of which is connected to the rear cross beam by bolts, and covers the installation space from the lower wing surfaces of the rear cross beam and the front cross beam toward the upper wing surfaces of the rear cross beam and the front cross beam; A power distribution device is connected to the upper wing surface of the rear beam, and the orthographic projection of the power distribution device from the lower wing surfaces of the rear beam and the front beam toward the upper wing surfaces of the rear beam and the front beam is located inside the waterproof protective plate.

2. The frame assembly according to claim 1, characterized in that: The frame assembly further includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket are spaced apart from each other, the first mounting bracket and the second mounting bracket are welded to the rear ventral surface of the rear cross beam, and the rear ventral surface of the rear cross beam is connected between the upper wing surface of the rear cross beam and the lower wing surface of the rear cross beam; The waterproof protective plate is connected to the first mounting bracket and the second mounting bracket by bolts.

3. The frame assembly according to claim 2, characterized in that: The first mounting bracket and the second mounting bracket both include a reinforcement portion, a transverse portion and a vertical portion, the transverse portion and the vertical portion are connected to form an "L"-shaped structure, the reinforcement portion is connected to the connection between the transverse portion and the vertical portion, the transverse portion is bolted to the waterproof guard plate, and the vertical portion is welded to the rear belly surface of the rear cross beam.

4. The vehicle frame assembly according to claim 1, characterized in that: The waterproof protective plate includes a waterproof main body and a plurality of raised portions, wherein the raised portions are arranged on the waterproof main body and protrude relative to the plate surface of the waterproof main body, the raised portions are connected to the front cross beam and the rear cross beam by bolts, and the waterproof main body is spaced apart from the front cross beam and the rear cross beam.

5. The vehicle frame assembly according to claim 1, characterized in that: The waterproof protective plate is provided with a plurality of leakage holes penetrating the waterproof protective plate, and the plurality of leakage holes are arranged at intervals from each other.

6. The vehicle frame assembly according to claim 4, characterized in that: The bottom surface of the waterproof guard plate away from the rear cross beam and the front cross beam is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are protruding relative to the plate surface of the waterproof main body.

7. The vehicle frame assembly according to claim 6, characterized in that: The reinforcing ribs are parallel to each other, and an extending direction of the reinforcing ribs is parallel to a length direction of the first longitudinal beam or the second longitudinal beam.

8. The vehicle frame assembly according to claim 1, characterized in that: The waterproof protective plate comprises a waterproof main board portion and a flange portion arranged around the waterproof main board portion, wherein the plate surface of the flange portion intersects with the plate surface of the waterproof main board portion; The flange portion extends from the waterproof main board portion toward the installation space.

9. A vehicle, characterized in that: It comprises a battery pack and the frame assembly according to any one of claims 1 to 8, wherein the battery pack is connected to the frame assembly.

10. The vehicle according to claim 9, characterized in that The vehicle further comprises a rear suspension bracket, which is connected to the frame assembly. The waterproof guard plate is provided with an avoidance hole to avoid the rear suspension bracket.

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