Frame assembly and vehicle

Abstract

The utility model relates to a frame structure, in particular to a frame assembly, which comprises a front frame assembly, a rear frame assembly and a middle frame assembly, the front frame assembly comprises a frame right front camber beam and a frame left front camber beam which are respectively arranged on two sides, and a frame front wiring harness support is connected between the frame right front camber beam and the frame left front camber beam; the rear frame assembly comprises a frame right rear camber beam and a frame left rear camber beam which are arranged on the two sides respectively, and a frame rear wiring harness support is connected between the frame right rear camber beam and the frame left rear camber beam. The middle frame assembly is connected between the front frame assembly and the rear frame assembly. The utility model further relates to a vehicle. The frame assembly is high in integration level, high in space utilization rate and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technology of vehicle frames, and particularly to a vehicle frame assembly and a vehicle. Background Art

[0002] In existing new energy vehicles, in order to improve the integration efficiency of the battery and the whole vehicle to improve the endurance of electric vehicles, the battery pack and the vehicle frame are integrally processed, and a large number of lines and pipelines need to be arranged on the vehicle frame. In order to facilitate the arrangement of the lines and pipelines, many frame structures need to be designed for avoidance, which further increases the manufacturing cost and assembly difficulty of the vehicle, and affects the integration between components, and is not conducive to the lightweight of the whole vehicle. Summary of the Utility Model

[0003] On the one hand, the technical problem to be solved by the utility model is to provide a vehicle frame assembly with high integration, high space utilization rate and convenient maintenance.

[0004] On the other hand, the technical problem to be solved by the utility model is to provide a vehicle with a compact and light structure.

[0005] To solve the above technical problems, on the one hand, the utility model provides a vehicle frame assembly, including a front vehicle frame assembly, the front vehicle frame assembly includes a right front bent beam and a left front bent beam arranged on both sides, and a front vehicle frame wiring harness bracket is connected between the right front bent beam and the left front bent beam; a rear vehicle frame assembly, the rear vehicle frame assembly includes a right rear bent beam and a left rear bent beam arranged on both sides, and a rear vehicle frame wiring harness bracket is connected between the right rear bent beam and the left rear bent beam; a middle vehicle frame assembly, the middle vehicle frame assembly is connected between the front vehicle frame assembly and the rear vehicle frame assembly.

[0006] Preferably, the middle vehicle frame assembly includes an upper cover plate, a lower support plate, a right longitudinal beam and a left longitudinal beam symmetrically arranged in the left-right direction, and a front cross beam and a rear cross beam symmetrically arranged in the front-rear direction. The right longitudinal beam, the front cross beam, the left longitudinal beam and the rear cross beam are connected end to end. The upper cover plate and the lower support plate are respectively arranged on both sides of the right longitudinal beam, the left longitudinal beam, the front cross beam and the rear cross beam to enclose an installation cavity, and a battery system is adapted to be placed in the installation cavity.

[0007] Preferably, the front cross beam is provided with a right front bent beam joint and a left front bent beam joint. Both the right front bent beam joint and the left front bent beam joint are formed with a front insertion part extending along the direction away from the front cross beam. Both the right front bent beam and the left front bent beam have a front bending section extending towards the middle of the vehicle body and downward. The front bending section is adapted to be inserted into the front insertion part to be connected with the middle vehicle frame assembly.

[0008] More preferably, the frame assembly further includes a front sub-frame assembly. Front mounting portions are formed on both the right front bent beam joint and the left front bent beam joint. One end of the front sub-frame assembly is connected to the middle frame assembly through the front mounting portion, and the other end is connected to the front frame assembly.

[0009] More preferably, the frame assembly further includes a front anti-collision beam assembly. The front anti-collision beam assembly is connected to the front frame assembly through the right front bent beam of the frame and the left front bent beam of the frame.

[0010] Preferably, the front frame assembly further includes: a front cross beam of the frame, which is connected between the right front bent beam of the frame and the left front bent beam of the frame; a body control board, which is arranged in the angular area formed by two adjacent surfaces of the left front bent beam of the frame and the front cross beam of the frame, and the angular area is close to the front cross beam.

[0011] Preferably, right and left rear bent beam joints are provided on the rear cross beam. Rear insertion portions extending in a direction away from the rear cross beam are formed on both the right rear bent beam joint and the left rear bent beam joint. Both the right rear bent beam of the frame and the left rear bent beam of the frame have rear bending sections that extend downward and toward the middle of the vehicle body. The rear bending sections are adapted to be inserted into the rear insertion portions to be connected to the middle frame assembly.

[0012] More preferably, the frame assembly further includes a rear sub-frame assembly. Rear mounting portions are formed on both the right rear bent beam joint and the left rear bent beam joint. One end of the rear sub-frame assembly is connected to the middle frame assembly through the rear mounting portion, and the other end is connected to the rear frame assembly.

[0013] More preferably, the frame assembly further includes a rear anti-collision beam assembly. The rear anti-collision beam assembly is connected to the rear frame assembly through the right rear bent beam of the frame and the left rear bent beam of the frame.

[0014] Preferably, the rear frame assembly further includes a rear cross beam of the frame, which is connected between the right rear bent beam of the frame and the left rear bent beam of the frame.

[0015] Preferably, the battery system includes a battery module, which is arranged in the installation cavity. The lower support plate is a liquid cooling plate for dissipating heat from the battery module.

[0016] More preferably, the battery system further includes a control board, which is arranged in the installation cavity. The lower support plate includes a first flow channel area and a second flow channel area. The first flow channel area is arranged corresponding to the battery module for dissipating heat from the battery module, and the second flow channel area is arranged corresponding to the control board for dissipating heat from the control board.

[0017] Further preferably, a heating sheet is provided in the first flow channel region, and a heat insulation sheet is provided between the first flow channel region and the second flow channel region.

[0018] Preferably, the battery module includes a high-voltage battery module and a low-voltage battery module.

[0019] More preferably, the battery system further includes a connector, the connector includes a high-voltage connector and a low-voltage connector, the high-voltage connector is electrically connected to the high-voltage battery module, the low-voltage connector is electrically connected to the low-voltage battery module, and the control board is electrically connected to the high-voltage connector and the low-voltage connector respectively.

[0020] Preferably, a collection system is provided on the battery module, the collection system includes a collection board, a connecting member and an explosion-proof valve, the collection board is arranged on one of the two side surfaces of the battery module along the thickness direction, the connecting member is adapted to be connected to the collection board and each battery cell unit of the battery module so that the same electrode ends of each battery cell unit are connected to the collection board; the explosion-proof valve is arranged on the side surface of the battery cell module along the length direction or the width direction.

[0021] On the other hand, the present invention provides a vehicle, which includes the frame assembly according to any one of the above technical solutions.

[0022] In the frame assembly of the present invention, a front frame wire harness bracket is arranged between the right front frame bend beam and the left front frame bend beam of the front frame assembly, so as to be able to orderly fix and separate the connecting wire harnesses between the electrical components installed on the front frame assembly and the wire harness connected to the middle frame assembly. A rear frame wire harness bracket is arranged between the right rear frame bend beam and the left rear frame bend beam of the rear frame assembly, so as to be able to orderly fix and separate the connecting wire harnesses between the driving parts and the like installed on the rear frame assembly and the wire harness connected to the middle frame assembly. Through the front frame wire harness bracket and the rear frame wire harness bracket, the routing and layout of the wire harness between the frames are optimized, unnecessary wire crossings and overlaps are reduced, and thus the space utilization rate inside the frame is improved, more installation space is provided for the electrical components, and further the integration degree of the frame assembly is improved. The front frame wire harness bracket and the rear frame wire harness bracket can also improve the lateral rigidity of the front frame assembly and the lateral rigidity of the rear frame assembly.

[0023] Due to the above-mentioned technical effects of the above frame assembly, the vehicle including the frame assembly also has the same technical effects, which will not be repeated here.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0025] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0026] Figure 1 is a schematic structural diagram of a specific embodiment of the frame assembly of the present utility model;

[0027] Figure 2 is a schematic structural diagram of a specific embodiment of the frame assembly of the present utility model without the upper cover plate and the lower support plate;

[0028] Figure 3 is a schematic structural diagram of a specific embodiment of the middle frame assembly of the present utility model without the upper cover plate and the lower support plate;

[0029] Figure 4 is a schematic structural diagram of a specific embodiment of the middle frame assembly of the present utility model.

[0030] Explanation of reference numerals

[0031] 1. Front anti-collision beam assembly;

[0032] 2. Front frame assembly; 2-1. Right front bent beam of the frame; 2-2. Upper fixing seat of the front shock absorber; 2-3. Upper swing arm fixing seat Ⅰ; 2-4. Body controller board; 2-5. Upper swing arm fixing seat Ⅱ; 2-6. Front cross beam of the frame; 2-7. Radiator pressing plate; 2-8. Radiator fixing bracket; 2-9. Water pump fixing plate; 2-10. Front wire harness bracket of the frame; 2-11. Left front bent beam of the frame;

[0033] 3. Front sub-frame assembly;

[0034] 4. Right front bent beam joint; 4-1. Front insertion part; 4-2. Front installation part;

[0035] 5. Middle frame assembly; 5-1. Right longitudinal beam; 5-2. Front cross beam; 5-3. Left longitudinal beam; 5-4. Rear cross beam;

[0036] 6. Lower support plate;

[0037] 7. Right rear bent beam joint; 7-1. Rear insertion part; 7-2. Rear installation part;

[0038] 8. Rear frame assembly; 8-1. Right rear tie rod fixing seat; 8-2. Upper rear swing arm fixing seat; 8-3. Right rear bent beam of the frame; 8-4. Rear cross beam of the frame; 8-5. Left rear tie rod fixing seat; 8-6. Left rear bent beam of the frame; 8-7. Rear wire harness bracket of the frame; 8-8. Upper fixing seat of the rear shock absorber;

[0039] 9. Rear subframe assembly; 10. Rear anti-collision beam assembly; 11. Upper cover plate;

[0040] 12. Left front bent beam joint; 12-1. Front insertion part; 12-2. Front installation part;

[0041] 13. Left rear bent beam joint; 13-1. Rear insertion part; 13-2. Rear installation part;

[0042] 14. High-voltage battery module; 15. Low-voltage battery module; 16. Control board; 17. Low-voltage connector; 18. High-voltage connector; 19. Acquisition board; 20. Connecting piece; 50. Installation cavity. Detailed implementation manners

[0043] The following will describe in detail the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present utility model, and the protection scope of the present utility model is not limited to the following detailed implementation manners.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "set", "install", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. "Parallel" is only a term used for the convenience of understanding by those skilled in the art to simply represent the relationship, and does not refer to the absolute and deviation-free state in geometry, but is based on a relative or approximate understanding. Due to the influence of various factors such as the actual observation angle, manufacturing accuracy, and measurement accuracy, the "parallel" used in the present utility model may not precisely conform to the strict definition in geometry, and it mainly reflects a trend or general characteristic of the direction relationship. For example, the so-called approximate parallel in the text can be understood as having a certain deviation relative to parallel.

[0045] In the description of the present utility model, in order to clearly illustrate the technical solution of the present utility model, some orientation terms are involved. For example, "front" refers to the direction close to the front of the vehicle, "rear" refers to the direction close to the rear of the vehicle, "inner" refers to the direction from the outside of the vehicle to the inside of the vehicle, "outer" refers to the direction from the inside of the vehicle to the outside of the vehicle, and "up, down, left, right" are all based on the orientation or position relationship shown in the drawings. It should be understood that the orientation terms are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0046] To better understand the technical solution of the present utility model, some concepts are briefly described below. The front frame assembly refers to the frame area used to carry the front drive system and connected to the front suspension or wheels. The middle frame assembly refers to the frame area used to carry the battery system and connected to the upper body passenger compartment. The rear frame assembly refers to the frame area used to carry the rear drive system and connected to the rear suspension or wheels.

[0047] Referring to Figures 1 to 3 , the present utility model provides a frame assembly, which includes a front frame assembly 2, a middle frame assembly 5, and a rear frame assembly 8. The front frame assembly 2, the middle frame assembly 5, and the rear frame assembly 8 can be sequentially connected after being respectively produced and assembled. The segmented connection structure can, without changing the structures of the front frame assembly 2 and the rear frame assembly 8, meet the expansion requirements of different wheelbases by adjusting the structure of the middle frame assembly 5. The front frame assembly 2 includes two frame right front bent beams 2-1 and frame left front bent beams 2-11 arranged parallel or approximately parallel in the front-rear direction of the vehicle body. And at the positions where the frame right front bent beam 2-1 and the frame left front bent beam 2-11 are close to the middle frame assembly 5, a frame front wire harness bracket 2-10 is connected. The frame front wire harness bracket 2-10 can orderly fix and separate the connection wire harnesses between the electrical components installed on the front frame assembly 2, as well as the connection wire harnesses between these electrical components and the battery system carried on the middle frame assembly 5, avoiding entanglement and friction between the wire harnesses during vehicle driving, and being able to reduce unnecessary wire crossing and overlapping, improving the space utilization rate of the front frame assembly 2, and further providing more installation space for other electrical components, promoting the integration of the front frame assembly 2. The rear frame assembly 8 includes two frame right rear bent beams 8-3 and frame left rear bent beams 8-6 arranged parallel or approximately parallel in the front-rear direction of the vehicle body. And at the positions where the frame right rear bent beam 8-3 and the frame left rear bent beam 8-6 are close to the middle frame assembly 5, a frame rear wire harness bracket 8-7 is connected. The beneficial effects of the frame rear wire harness bracket 8-7 are similar to those of the frame front wire harness bracket 2-10, and will not be elaborated here.

[0048] In some embodiments, the middle frame assembly 5 includes an upper cover plate 11, a lower support plate 6, a right longitudinal beam 5-1 and a left longitudinal beam 5-3 which are symmetric and parallel in the left-right direction, and a front cross beam 5-2 and a rear cross beam 5-4 which are symmetric and parallel in the front-rear direction. The left and right end faces of the front cross beam 5-2 are fixedly connected to the inner surfaces of the right longitudinal beam 5-1 and the left longitudinal beam 5-3 near the front end. The left and right end faces of the rear cross beam 5-4 are fixedly connected to the inner surfaces of the right longitudinal beam 5-1 and the left longitudinal beam 5-3 near the rear end. The front cross beam 5-2, the right longitudinal beam 5-1, the rear cross beam 5-4 and the left longitudinal beam 5-3 are connected end to end to form a square frame body, and this frame body constitutes an installation cavity 50 for accommodating the battery system. The battery system includes, but is not limited to, a battery cell module, an electrical connection assembly for realizing the electrical connection between battery cell modules and the connection between the battery cell modules and other external electrical components, and an electronic control system for managing the battery cell module. The above battery cell module, electrical connection assembly and electronic control system can all be realized based on the prior art and are not the invention core of the present utility model, so they will not be described in detail here. The space size of the installation cavity 50 can be changed by increasing or decreasing the dimensional lengths of the left longitudinal beam 5-3, the right longitudinal beam 5-1, the front cross beam 5-2 and the rear cross beam 5-4, so as to meet various requirements of users for the size and quantity of the battery cell modules. This setting can separately set the structure of the middle frame assembly 5 to meet the expansion requirements of different wheelbases and the size requirements of the battery system accommodation space without affecting the structures of the front frame assembly 2 and the rear frame assembly 8. Exemplarily, the length of the left longitudinal beam 5-3 and the right longitudinal beam 5-1 and / or the length of the front cross beam 5-2 and the rear cross beam 5-4 can be expanded to increase the space of the installation cavity 50, and then a battery cell module with a larger capacity can be carried to enhance the endurance; the wheelbase, that is, the distance between the front wheel and the rear wheel, can be increased by expanding the length of the left longitudinal beam 5-3 and the right longitudinal beam 5-1.

[0049] In addition, a plurality of wire harness brackets may be provided on the inner side surfaces of the left longitudinal beam 5-3 and / or the right longitudinal beam 5-1 for accommodating the connection wire harnesses between the battery cell modules. Wire harness connector fixing holes may be formed in the front cross beam 5-2 and / or the rear cross beam 5-4 for fixing the connectors. The electrical connection heads of the battery system in the installation cavity 50 are adapted to be plugged into the connectors, and the other socket of the connectors is located outside the front cross beam 5-2 and / or the rear cross beam 5-4 for connecting with the wire harness connection joints on the front vehicle frame assembly 2 and the rear vehicle frame assembly 8. The connection wire harnesses of each electrical component on the front vehicle frame assembly 2 and the rear vehicle frame assembly 8 are respectively integrated into wire harness connection joints and docked with the connector sockets on the middle vehicle frame assembly 5 to be able to supply power to the electrical components on the front vehicle frame assembly 2 and the rear vehicle frame assembly 8. This connection method can facilitate the maintenance of the battery system. When a fault occurs in the battery system, only the electrical connection head in the installation cavity 50 needs to be unplugged to separate the battery system from the external electrical components. The fixed connection methods of the above-mentioned front cross beam 5-2, right longitudinal beam 5-1, rear cross beam 5-4 and left longitudinal beam 5-3 can be various methods such as riveting, screwing or welding. When using the riveting or screwing method, a sealing material can be used for sealing and filling; when using the welding method, a caulking agent can be used for sealing and filling. The above-mentioned front cross beam 5-2, right longitudinal beam 5-1, rear cross beam 5-4 and left longitudinal beam 5-3 can adopt high-strength steel rectangular pipes to ensure that when the right longitudinal beam 5-1 and the left longitudinal beam 5-3 are impacted, the front cross beam 5-2, right longitudinal beam 5-1, rear cross beam 5-4 and left longitudinal beam 5-3 will not deform, thereby ensuring the safety of the battery system in the installation cavity 50.

[0050] Multiple mounting holes are provided on the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4, and threaded bushings are provided in each mounting hole. The thread specifications and spiral depths of the upper and lower ends of the threaded bushing are different, so that the threaded bushing can be respectively connected to the upper cover plate 11 and the lower support plate 6, effectively ensuring the torsional stiffness of the frame formed by the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4. The upper cover plate 11 is located at the top of the installation cavity 50, and is fixedly connected to the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4 and can be hermetically connected by an adhesive or a sealant. The upper cover plate 11 does not need to be disassembled during subsequent maintenance of the battery system, is maintenance-free, and the upper surface of the upper cover plate 11 after being installed with the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4 is flat and parallel to the ground horizontal plane, providing a good and sufficient installation space for the upper-mounted parts and meeting the user's expansion of different applications. The lower support plate 6 is located at the bottom of the installation cavity 50, and is detachably connected to the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4, and can also be hermetically connected by a sealant without affecting the disassembly of the lower support plate 6. It can be understood that since the battery cell module is connected to the lower support plate 6 and the lower support plate 6 is connected to the left longitudinal beam 5-3, right longitudinal beam 5-1, front cross beam 5-2 and rear cross beam 5-4 from bottom to top, the upper cover plate 11 can be designed as a non-detachable connection method, eliminating maintenance. When repairing or replacing the battery cell module, it is not necessary to disassemble the entire middle frame assembly 5, and only the lower support plate 6 needs to be directly disassembled from the bottom of the vehicle to repair or replace the battery cell module, with simple operation and low maintenance cost.

[0051] The middle frame assembly 5 of the present utility model is only composed of two longitudinal beams (left longitudinal beam 5-3 and right longitudinal beam 5-1), two cross beams (front cross beam 5-2 and rear cross beam 5-4), an upper cover plate 11 and a lower support plate 6 to form a sealed space for accommodating the battery system. Compared with the structure in the prior art that uses multiple longitudinal beams and cross beams to form multiple grid spaces for placing battery packs, the middle frame assembly 5 of the present utility model reduces the number of longitudinal and cross beam structural members and integrates the battery system, thereby improving the utilization rate of the sealed space, reducing the weight of the middle frame assembly 5, and being beneficial to the lightweight and integration of the vehicle. The battery cell module is connected to the lower support plate 6, and the connection method of the lower support plate 6 to the two longitudinal beams and two cross beams from bottom to top reduces the maintenance difficulty of the battery cell module, thereby reducing the maintenance cost.

[0052] In some embodiments, a right front curved beam joint 4 and a left front curved beam joint 12 are provided on the front cross beam 5-2. The right front curved beam joint 4 is formed with a front insertion portion 4-1 and a front mounting portion 4-2 that extend in a direction away from the front cross beam 5-2. The left front curved beam joint 12 is formed with a front insertion portion 12-1 and a front mounting portion 12-2 that extend in a direction away from the front cross beam 5-2. Specifically, the front insertion portions 4-1, 12-1 and the front mounting portions 4-2, 12-2 are arranged adjacent to each other vertically. The front insertion portions 4-1, 12-1 extend forward and upward in a direction away from the front cross beam 5-2. The front mounting portions 4-2, 12-2 extend forward in a direction away from the front cross beam 5-2 and have a front bending portion that extends forward and upward.

[0053] In some embodiments, both the right front curved beam 2-1 of the vehicle frame and the left front curved beam 2-11 of the vehicle frame have a front curved section that extends towards the middle of the vehicle body and downward, and a front straight section that extends forward along the length direction of the vehicle body. A front cross beam 2-6 of the vehicle frame is provided between the right front curved beam 2-1 and the left front curved beam 2-11 of the vehicle frame. Specifically, the front cross beam 2-6 of the vehicle frame is arranged in parallel with the front cross beam 5-2. One end of the front cross beam 2-6 is on the inner section surface of the middle part of the front straight section of the right front curved beam 2-1 of the vehicle frame, and the other end is on the inner section surface of the middle part of the front straight section of the left front curved beam 2-11 of the vehicle frame, so as to enhance the lateral stiffness of the front vehicle frame assembly 2. The end of the front curved section of the right front curved beam 2-1 of the vehicle frame is adapted to be inserted into the front insertion portion 4-1 and welded and fixed thereto. The end of the front curved section of the left front curved beam 2-11 of the vehicle frame is adapted to be inserted into the front insertion portion 12-1 and welded and fixed thereto, so as to realize the connection between the right front curved beam 2-1 and the left front curved beam 2-11 of the vehicle frame and the middle vehicle frame assembly 5. The front end faces of the front straight sections of the connected right front curved beam 2-1 and left front curved beam 2-11 of the vehicle frame are located in the same vertical plane.

[0054] In some embodiments, the front frame assembly 2 further includes a body controller board 2-4, a front upper swing arm fixing seat I 2-3, a front upper swing arm fixing seat II 2-5, a front shock absorber upper fixing seat 2-2, a radiator fixing bracket 2-8, a radiator pressing plate 2-7, a water pump fixing plate 2-9, and a front frame wire harness bracket 2-10. Specifically, the body controller board 2-4 is disposed in the angular region formed by two adjacent surfaces of the left front bent beam 2-11 of the frame and the front cross beam 2-6 of the frame, and this angular region is close to the front cross beam 5-2; there are two front upper swing arm fixing seats I 2-3, which are adjacently disposed on the lower end surfaces of the front straight sections of the right front bent beam 2-1 and the left front bent beam 2-11 of the frame; there are two front upper swing arm fixing seats II 2-5, which are adjacently disposed on the lower end surfaces of the front bent sections of the right front bent beam 2-1 and the left front bent beam 2-11 of the frame; there are two front shock absorber upper fixing seats 2-2, which are respectively disposed on the upper end surfaces of the right front bent beam 2-1 and the left front bent beam 2-11 of the frame. The above two front shock absorber upper fixing seats 2-2 are symmetrically disposed and extend in opposite directions, and the front shock absorber upper fixing seat 2-2 is located between the front upper swing arm fixing seat I 2-3 and the front upper swing arm fixing seat II 2-5; the radiator fixing bracket 2-8 is disposed in the lower region close to the front end surfaces of the right front bent beam 2-1 and the left front bent beam 2-11 of the frame. The radiator fixing bracket 2-8 extends downward to form a "U" - shaped structure, one end of which is connected to the lower end surface of the right front bent beam 2-1, and the other end is connected to the lower end surface of the left front bent beam 2-11. The radiator is adapted to be placed within the radiator fixing bracket 2-8; the radiator pressing plate 2-7 is disposed above the radiator fixing bracket 2-8, one end of which is connected to the inner end surface of the right front bent beam 2-1, and the other end is connected to the inner end surface of the left front bent beam 2-11 to be able to restrict the movement of the radiator in the up - and - down direction; the water pump fixing plate 2-9 is disposed on the lower surface of the front cross beam 2-6 of the frame and is used for connecting and fixing to the water pump assembly; the front frame wire harness bracket 2-10 is arranged parallel to the front cross beam 5-6, and one end of the front frame wire harness bracket 2-10 is fixed to the inner section surface of the front bent section of the right front bent beam 2-1 close to the front mating part 4-1, and the other end is fixed to the inner section surface of the front bent section of the left front bent beam 2-11 close to the front mating part 12-1, facilitating the electrical wire harness arrangement between the middle frame assembly 5 and the front frame assembly 2.

[0055] In some embodiments, a right rear bent beam joint 7 and a left rear bent beam joint 13 are provided on the rear cross beam 5-4. The right rear bent beam joint 7 is formed with a rear insertion part 7-1 and a rear mounting part 7-2 extending in a direction away from the rear cross beam 5-4. The left rear bent beam joint 13 is formed with a rear insertion part 13-1 and a rear mounting part 13-2 extending in a direction away from the rear cross beam 5-4. Specifically, the rear insertion parts 7-1, 13-1 and the rear mounting parts 7-2, 13-2 are arranged adjacent to each other vertically. The rear insertion parts 7-1, 13-1 extend backward and upward in a direction away from the rear cross beam 5-4. The rear mounting parts 7-2, 13-2 extend backward in a direction away from the rear cross beam 5-4 and have rear bending parts extending backward and upward.

[0056] In some embodiments, the rear frame assembly 8 includes two frame right rear bent beams 8-3 and frame left rear bent beams 8-6 arranged in parallel or approximately parallel. Both the frame right rear bent beam 8-3 and the frame left rear bent beam 8-6 have rear bending sections extending toward the middle of the vehicle body and downward, and rear straight sections extending backward along the length direction of the vehicle body. A frame rear cross beam 8-4 is provided between the frame right rear bent beam 8-3 and the frame left rear bent beam 8-6. Specifically, the frame rear cross beam 8-4 is arranged in parallel or approximately parallel with the rear cross beam 5-4. One end of the frame rear cross beam 8-4 is on the inner section surface of the middle part of the rear straight section of the frame right rear bent beam 8-3, and the other end is on the inner section surface of the middle part of the front straight section of the frame left rear bent beam 8-6, so as to enhance the lateral stiffness of the rear frame assembly 8. The end of the rear bending section of the above-mentioned frame right rear bent beam 8-3 is adapted to be inserted into the rear insertion part 7-1 and welded and fixed thereto. The end of the rear bending section of the frame left rear bent beam 8-6 is adapted to be inserted into the rear insertion part 13-1 and welded and fixed thereto, so as to realize the connection between the frame right rear bent beam 8-3 and the frame left rear bent beam 8-6 and the middle frame assembly 5. After connection, the rear end faces of the rear straight sections of the frame right rear bent beam 8-3 and the frame left rear bent beam 8-6 are located on the same vertical plane.

[0057] In some embodiments, the rear frame assembly 8 further includes a right rear tie rod fixing seat 8-1, a left rear tie rod fixing seat 8-5, a rear upper swing arm fixing seat 8-2, a rear shock absorber upper fixing seat 8-8, and a rear frame wiring harness bracket 8-7. Specifically, the right rear tie rod fixing seat 8-1 is connected to the lower end surface of the right rear curved beam 8-3 of the frame near the rear curved section, and the left rear tie rod fixing seat 8-5 is connected to the lower end surface of the left rear curved beam 8-6 of the frame near the rear curved section, and the right rear tie rod fixing seat 8-1 and the left rear tie rod fixing seat 8-5 are symmetrically arranged; there are two rear upper swing arm fixing seats 8-2, which are adjacently arranged on the lower end surface of the middle part of the rear straight section of the right rear curved beam 8-3 of the frame, and two rear upper swing arm fixing seats 8-2 are symmetrically arranged on the lower end surface of the middle part of the rear straight section of the left rear curved beam 8-6 of the frame; there are two rear shock absorber upper fixing seats 8-8, which are respectively arranged on the upper end surfaces of the right rear curved beam 8-3 and the left rear curved beam 8-6 of the frame. The above two rear shock absorber upper fixing seats 8-8 are symmetrically arranged and extend in opposite directions, and the rear shock absorber upper fixing seats 8-8 are respectively located between the right rear tie rod fixing seat 8-1 and the rear upper swing arm fixing seat 8-2, and between the left rear tie rod fixing seat 8-5 and the rear upper swing arm fixing seat 8-2; the rear frame wiring harness bracket 8-7 is arranged in parallel with the rear cross beam 5-4, and one end of the rear frame wiring harness bracket 8-7 is fixed to the inner section surface of the rear curved section of the right rear curved beam 8-3 of the frame near the rear docking part 7-1, and the other end is fixed to the inner section surface of the rear curved section of the left rear curved beam 8-6 of the frame near the rear docking part 13-1, which is convenient for the electrical wiring harness arrangement between the middle frame assembly 5 and the rear frame assembly 8.

[0058] In some embodiments, the frame assembly of the present utility model further includes a front anti-collision beam assembly 1 and a front sub-frame assembly 3. The front anti-collision beam assembly 1 is located at the front of the front frame assembly 2 and is connected to the front frame assembly 2 through the right front frame curved beam 2-1 and the left front frame curved beam 2-11, so as to be able to absorb a part of the impact force when the front frame is longitudinally stressed and deformed, and reduce the damage to relevant components; the front sub-frame assembly 3 is located at the front lower part of the front frame assembly 2, and there are various mounting components on the front sub-frame assembly 3 to meet the fixed installation of components such as PTC heaters, thermal management water pipes, steering gears, and front suspension lower swing arms. One end of the front sub-frame assembly 3 near the front cross beam 5-2 is connected to the middle frame assembly 5 through the front mounting parts 4-2, 12-2. Specifically, one end of the front sub-frame assembly 3 is located below the bending part of the front mounting parts 4-2, 12-2 and is screwed to the front mounting parts 4-2, 12-2 through standard parts, which is convenient for disassembly and replacement. The end far from the front cross beam 5-2 is respectively connected to the lower end surfaces of the right front frame curved beam 2-1 and the left front frame curved beam 2-11.

[0059] In some embodiments, the frame assembly of the present utility model further includes a rear anti-collision beam assembly 10 and a rear subframe assembly 9. The rear anti-collision beam assembly 10 is located at the rear of the rear frame assembly 8 and is connected to the rear frame assembly 8 through the right rear frame bent beam 8-3 and the left rear frame bent beam 8-6, so as to be able to absorb part of the impact force during longitudinal force deformation of the rear frame and reduce damage to related components; the rear subframe assembly 9 is located at the lower rear of the rear frame assembly 8, and a variety of mounting components are provided on the rear subframe assembly 9 to meet the fixed installation of components such as the rear suspension assembly, the power motor, and the reducer. One end of the rear subframe assembly 9 close to the rear cross beam 5-4 is connected to the middle frame assembly 5 through the rear mounting parts 7-2 and 13-2. Specifically, one end of the rear subframe assembly 9 is located below the bending part of the rear mounting parts 7-2 and 13-2 and is screwed to the rear mounting parts 7-2 and 13-2 through standard parts, which is convenient for disassembly and replacement. The end far from the rear cross beam 5-4 is respectively connected to the lower end faces of the right rear frame bent beam 8-3 and the left rear frame bent beam 8-6.

[0060] In some embodiments, referring to Figure 4 , the battery system includes a battery module, a control board 16, and a connector. The battery module is placed in the installation cavity 50. The battery module includes a high-voltage battery module 14 and a low-voltage battery module 15; the control board 16 is a printed circuit board assembly (PCBA) that at least integrates a battery management system (BMS) module, a vehicle control unit (VCU) module, a power distribution unit (PDU) module, a DC-to-DC converter (DCDC) module, and an on-board charger (OBC) module; the connector includes a high-voltage connector 18 and a low-voltage connector 17; wherein, the control board 16 is electrically connected to the battery module and the connector respectively to control the high-voltage battery module 14 to supply power to the high-voltage connector 18 and control the low-voltage battery module 15 to supply power to the low-voltage connector 17. This battery system integrates high- and low-voltage batteries, which can effectively improve the space utilization rate in the installation cavity 50, and the control board 16 integrating several control modules is also arranged in the installation cavity 50. This battery system can be connected to each control system (thermal management system, motor control system, braking system, headlight system, wheel speed system, etc.) on the front frame assembly 2 and the rear frame assembly 8 through the connector, so as to realize the unification of external interfaces, reduce the number of connectors between electrical components, not only improve the space utilization rate of the frame assembly, reduce the weight of the frame, but also improve the connection reliability and reduce vehicle safety problems caused by wiring harness failures.

[0061] In some embodiments, the lower pallet 6 is a liquid cooling plate for dissipating heat from the battery module. The lower pallet 6 includes a first flow channel area and a second flow channel area. The first flow channel area is arranged corresponding to the battery module to dissipate heat from the battery module, and the second flow channel area is arranged corresponding to the control board 16 to dissipate heat from the control board 16. Further, a liquid inlet joint and a liquid outlet joint can be provided on the side wall of the lower pallet 6 for connection to an external radiator. Since the radiator is installed on the radiator fixing bracket 2-8 of the front frame assembly 2, in order to reduce the layout range of the wire harness and pipeline, the liquid inlet joint and the liquid outlet joint are arranged on the side of the lower pallet 6 facing the front frame assembly 2. The radiator can control the flow cycle of the cold and hot liquid in the first flow channel plate and the second flow channel plate and perform heat exchange with the battery module and the control board 16 installed on the lower pallet 6. This setting realizes the integration of the battery system into the middle frame assembly 5 while realizing the thermal management of the battery system and ensuring the safe operation of the battery system.

[0062] In some embodiments, a heating sheet is provided in the first flow channel area to be able to heat the battery module placed in the first flow channel area. Moreover, in order to avoid heat conduction between the first flow channel area and the second flow channel area and affect the effect of partition thermal management, a heat insulation sheet can be provided between the first flow channel area and the second flow channel area.

[0063] In some embodiments, the single cells of the high-voltage battery module 14 and the low-voltage battery module 15 are square batteries. The square battery includes a battery body, and the thickness D of the battery body and the volume V of the battery body satisfy: D / V = 0.0000065 - 0.00002 mm -2 . In addition, the high-voltage battery module 14 can also be a power battery pack, and the low-voltage battery module 15 is a lead-acid battery.

[0064] In some embodiments, referring to Figure 4 , a collection system is provided on the battery module. The collection system includes a collection board 19, a connector 20, and an explosion-proof valve. The collection board 19 is arranged on one of the two side surfaces of the battery module along the thickness direction, that is, it can be arranged on the upper surface or the lower surface close to the collection end of the battery module. The explosion-proof valve is arranged on one of the side surfaces of the battery module along the length direction or the width direction. Thereby, when part of the batteries in the battery module are thermally out of control, it can be avoided that the explosion-proof valve is opened and damages the collection board 19. The connector 20 is suitable for connecting with the collection board 19 and each battery cell unit of the battery module, so that the same electrode ends of each battery cell unit are connected to the collection board 19, and this collection end is the end where the battery cell pole of the battery module is located. Through the above setting, the collection board 19 can collect the voltages of all the battery cell units of the battery module on the same side of the battery module.

[0065] Based on the above embodiments, the frame assembly of the present utility model has a high degree of integration. It adopts a skateboard chassis structure and divides the frame assembly into three modules: the front frame assembly 2, the middle frame assembly 5, and the rear frame assembly 8. The modular frame design can meet the expansion requirements of different wheelbases without changing the structures of the front frame assembly 2 and the rear frame assembly 8. Only by adjusting the structure of the middle frame assembly 5 can the expansion needs of different wheelbases be achieved. And according to the size of the required battery cell capacity, the middle frame assembly 5 can be expanded horizontally and / or longitudinally to accommodate larger-capacity battery cells and increase the endurance. The middle frame assembly 5 integrates the battery system, and the longitudinal and cross beams of the middle frame assembly 5 directly form a frame body for accommodating the battery system, which is compact, highly integrated, and has high strength. The upper surface of the middle frame assembly 5 has a high flatness, which can reserve sufficient space for the superstructure and meet the customers' needs for expanding different applications. The lower support plate 6 of the middle frame assembly 5 is connected to the frame body for accommodating the battery system from bottom to top, and the battery cell module is connected to the lower support plate 6 from top to bottom. This structural setting is simple and convenient for maintenance, with high maintenance efficiency and low maintenance cost. The front frame assembly 2 is provided with a front frame cross beam 2-6 and a front frame wire harness bracket 2-10, and the rear frame assembly 8 is provided with a rear frame cross beam 8-4 and a rear frame wire harness bracket 8-7, which improve the lateral rigidity of the overall frame assembly and can effectively inhibit the chassis from twisting and deforming. The front frame wire harness bracket 2-10 and the rear frame wire harness bracket 8-7 can orderly fix and separate the connection wire harnesses of the electrical components on the front frame assembly 2 and the connection wire harnesses of the electrical components on the rear frame assembly 8, improving the space utilization rate inside the frame and facilitating vehicle maintenance, thus improving the maintenance efficiency. The power supply wire harness of the battery system is integrated into an electrical connector for connection, and the wire harnesses on the front frame assembly 2 and the rear frame assembly 8 for connecting with the battery system are integrated into wire harness connection joints for connection, which can effectively reduce unnecessary wire harness materials, reduce the overall weight of the vehicle, be beneficial to the lightweight of the vehicle, and improve the energy efficiency and performance of the vehicle.

[0066] On the other hand, the present utility model provides a vehicle, which includes the frame assembly provided by the above technical solution of the present utility model and has all its beneficial effects, which will not be elaborated here too much.

[0067] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solution of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0068] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable way without contradiction. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination ways.

[0069] In addition, any combination can be made among various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, and it should equally be regarded as the content disclosed by the present utility model.

Claims

1. A frame assembly, characterized in that, Comprising: A front frame assembly (2), the front frame assembly (2) includes a right front frame bent beam (2-1) and a left front frame bent beam (2-11) arranged on both sides respectively, and a front frame wire harness bracket (2-10) is connected between the right front frame bent beam (2-1) and the left front frame bent beam (2-11); A rear frame assembly (8), the rear frame assembly (8) includes a right rear frame bent beam (8-3) and a left rear frame bent beam (8-6) arranged on both sides respectively, and a rear frame wire harness bracket (8-7) is connected between the right rear frame bent beam (8-3) and the left rear frame bent beam (8-6); A middle frame assembly (5), the middle frame assembly (5) is connected between the front frame assembly (2) and the rear frame assembly (8).

2. The vehicle frame assembly according to claim 1, characterized in that, The middle frame assembly (5) includes an upper cover plate (11), a lower support plate (6), a right longitudinal beam (5-1) and a left longitudinal beam (5-3) symmetrically arranged in the left-right direction, and a front cross beam (5-2) and a rear cross beam (5-4) symmetrically arranged in the front-rear direction. The right longitudinal beam (5-1), the front cross beam (5-2), the left longitudinal beam (5-3) and the rear cross beam (5-4) are connected end to end. The upper cover plate (11) and the lower support plate (6) are respectively arranged on both sides of the right longitudinal beam (5-1), the left longitudinal beam (5-3), the front cross beam (5-2) and the rear cross beam (5-4) to enclose an installation cavity (50), and a battery system is adapted to be placed in the installation cavity (50).

3. The vehicle frame assembly according to claim 2, wherein, The front cross beam (5-2) is provided with a right front bent beam joint (4) and a left front bent beam joint (12). Both the right front bent beam joint (4) and the left front bent beam joint (12) are formed with front insertion parts (4-1, 12-1) extending in a direction away from the front cross beam (5-2). The right front frame bent beam (2-1) and the left front frame bent beam (2-11) both have front bending sections extending towards the middle of the vehicle body and downwards. The front bending sections are adapted to be inserted into the front insertion parts (4-1, 12-1) to be connected with the middle frame assembly (5).

4. The vehicle frame assembly according to claim 3, wherein It further includes a front sub-frame assembly (3). Both the right front bent beam joint (4) and the left front bent beam joint (12) are formed with front mounting parts (4-2, 12-2). One end of the front sub-frame assembly (3) is connected to the middle frame assembly (5) through the front mounting parts (4-2, 12-2), and the other end is connected to the front frame assembly (2).

5. The frame assembly according to claim 3, wherein, It further includes a front anti-collision beam assembly (1). The front anti-collision beam assembly (1) is connected to the front frame assembly (2) through the right front frame bent beam (2-1) and the left front frame bent beam (2-11).

6. The frame assembly according to claim 3, wherein, The front frame assembly (2) further includes: A front frame cross beam (2-6), the front frame cross beam (2-6) is connected between the right front frame bent beam (2-1) and the left front frame bent beam (2-11); Body control board (2-4), the body control board (2-4) is arranged in the included angle area formed by two adjacent surfaces of the left front curved beam (2-11) of the vehicle frame and the front cross beam (2-6) of the vehicle frame, and the included angle area is close to the front cross beam (5-2).

7. The frame assembly according to claim 2, characterized in that, The rear cross beam (5-4) is provided with a right rear curved beam joint (7) and a left rear curved beam joint (13), both the right rear curved beam joint (7) and the left rear curved beam joint (13) are formed with rear insertion parts (7-1, 13-1) extending along the direction away from the rear cross beam (5-4), both the right rear curved beam (8-3) of the vehicle frame and the left rear curved beam (8-6) of the vehicle frame have rear curved segments extending towards the middle of the vehicle body and downwards, and the rear curved segments are suitable for inserting into the rear insertion parts (7-1, 13-1) to be connected with the middle vehicle frame assembly (5).

8. The vehicle frame assembly according to claim 7, wherein, It further includes a rear sub-frame assembly (9), both the right rear curved beam joint (7) and the left rear curved beam joint (13) are formed with rear mounting parts (7-2, 13-2), one end of the rear sub-frame assembly (9) is connected with the middle vehicle frame assembly (5) through the rear mounting parts (7-2, 13-2), and the other end is connected with the rear vehicle frame assembly (8).

9. The vehicle frame assembly according to claim 7, wherein It further includes a rear anti-collision beam assembly (10), the rear anti-collision beam assembly (10) is connected with the rear vehicle frame assembly (8) through the right rear curved beam (8-3) and the left rear curved beam (8-6) of the vehicle frame.

10. The vehicle frame assembly according to claim 7, characterized in that, The rear vehicle frame assembly (8) further includes a rear cross beam (8-4) of the vehicle frame, and the rear cross beam (8-4) of the vehicle frame is connected between the right rear curved beam (8-3) and the left rear curved beam (8-6) of the vehicle frame.

11. The vehicle frame assembly according to any one of claims 2 to 10, characterized in that, The battery system includes battery modules, the battery modules are arranged in the installation cavity (50), and the lower support plate (6) is a liquid cooling plate for dissipating heat from the battery modules.

12. The vehicle frame assembly according to claim 11, characterized in that, The battery system further includes a control board (16), the control board (16) is arranged in the installation cavity (50), the lower support plate (6) includes a first flow channel area and a second flow channel area, the first flow channel area is arranged corresponding to the battery modules for dissipating heat from the battery modules, and the second flow channel area is arranged corresponding to the control board (16) for dissipating heat from the control board (16).

13. The vehicle frame assembly according to claim 12, characterized in that, The first flow channel area is provided with heating sheets, and a heat insulation sheet is arranged between the first flow channel area and the second flow channel area.

14. The vehicle frame assembly according to claim 12, wherein, The battery modules include a high-voltage battery module (14) and a low-voltage battery module (15).

15. The vehicle frame assembly according to claim 14, wherein, The battery system further includes connectors, the connectors include a high-voltage connector (18) and a low-voltage connector (17), the high-voltage connector (18) is electrically connected with the high-voltage battery module (14), the low-voltage connector (17) is electrically connected with the low-voltage battery module (15), and the control board (16) is respectively electrically connected with the high-voltage connector (18) and the low-voltage connector (17).

16. The frame assembly according to claim 11, characterized in that, A collection system is provided on the battery module. The collection system includes a collection board (19), a connecting member (20), and an explosion-proof valve. The collection board (19) is disposed on one of the two side surfaces of the battery module along the thickness direction. The connecting member (20) is adapted to be connected to the collection board (19) and each battery cell unit of the battery module, so that the same electrode ends of each battery cell unit are connected to the collection board (19); the explosion-proof valve is disposed on the side surface of the battery module along the length direction or the width direction.

17. A vehicle, characterized in that, Including the vehicle frame assembly according to any one of claims 12 to 16.

Images