Auxiliary frame and vehicle

Abstract

The utility model belongs to the technical field of vehicle manufacturing, and particularly relates to an auxiliary frame and a vehicle. The auxiliary frame comprises a left side beam, a right side beam, a front cross beam assembly and a rear cross beam assembly. The front cross beam assembly and the rear cross beam assembly are arranged at intervals in the X direction, the left side beam is connected to one ends of the front cross beam assembly and the rear cross beam assembly in the Y direction, and the right side beam is connected to the other ends of the front cross beam assembly and the rear cross beam assembly in the Y direction; the left side beam and the right side beam are both side beams of the same structure and are both provided with a first mounting interface, a second mounting interface and a third mounting interface; the front cross beam assembly and the rear cross beam assembly are both cross beam assemblies of the same structure and are both provided with a fourth mounting interface; wherein the first mounting interface is used for connecting a pedestrian shank protection beam, the second mounting interface is used for connecting a vehicle body, the third mounting interface is used for connecting a lower control arm, and the fourth mounting interface is used for connecting a gas-liquid power source assembly. The auxiliary frame is provided with abundant interfaces so as to be suitable for a whole vehicle with a corner module framework with a higher integration degree.

Description

Technical Field

[0001] The present application belongs to the field of vehicle manufacturing technology, and in particular relates to a subframe and a vehicle. Background Art

[0002] With the rapid development of new energy vehicles, the requirements for the intelligence of new energy vehicles are becoming increasingly higher, especially for smart electric vehicles. In order to ensure their intelligence, flexibility and high integration, the integrated corner module architecture is currently used for the whole vehicle.

[0003] Specifically, electric vehicles do not have traditional central powertrains and mechanical steering assemblies. Instead, the power, steering, and suspension of electric vehicles are all integrated into the corner modules.

[0004] Currently, traditional frame-type or butterfly-type subframe structures are designed to adapt to central powertrain architectures. Specifically, the various mounting interfaces formed on existing subframes are designed to adapt to central powertrains constructed based on engines and gearboxes or motors and reducers, and are difficult to adapt to vehicles with more highly integrated corner module architecture designs. Utility Model Content

[0005] The present application provides a subframe and a vehicle to solve the technical problem that the existing subframe is not suitable for vehicles based on a corner module architecture.

[0006] According to one aspect of the present application, a subframe is provided, including a left beam, a right beam, a front crossbeam assembly, and a rear crossbeam assembly; the front crossbeam assembly and the rear crossbeam assembly are spaced apart in the X direction, the left beam is connected to one end of the front crossbeam assembly and the rear crossbeam assembly in the Y direction, and the right beam is connected to the other end of the front crossbeam assembly and the rear crossbeam assembly in the Y direction; the left beam and the right beam are both side beams of the same structure and are both formed with a first mounting interface, a second mounting interface, and a third mounting interface, the front crossbeam assembly and the rear crossbeam assembly are both crossbeam assemblies of the same structure and are both formed with a fourth mounting interface; wherein the first mounting interface is used to connect to a pedestrian calf protection beam, the second mounting interface is used to connect to a vehicle body, the third mounting interface is used to connect to a lower control arm, and the fourth mounting interface is used to connect to a gas-liquid power source assembly.

[0007] In an optional solution of the present application, the beam assembly includes a beam body, a first mounting column and a second mounting column; the first mounting column and the second mounting column are arranged at intervals along the Y direction on the top side of the beam body and are both provided with mounting holes to form a fourth mounting interface.

[0008] In an optional solution of the present application, the beam assembly also includes a left blocking cover, a right blocking cover and an air pipe joint; a cavity is formed in the beam body and end side openings connected to the cavity are formed at both ends of the Y direction, and the left blocking cover and the right blocking cover are respectively connected to the two ends of the Y direction of the beam body to seal the end side openings on both sides of the Y direction; the air pipe joint is arranged on the top side of the beam body and connected to the cavity.

[0009] In an optional solution of the present application, the beam body is further provided with at least one vent hole, which is located on the X-direction inner side wall of the beam body and is used to connect the cavity with the gas storage tank.

[0010] In an optional solution of the present application, the side beam includes a side beam body and a forked joint arranged at both ends of the side beam body in the X direction; the forked joint includes a Z-direction ear plate, a Y-direction ear plate and a slot, the Z-direction ear plate extends upward, the Y-direction ear plate extends outward along the Y direction, the slot is located below the Z-direction ear plate and is formed with an opening for accommodating the end of the crossbeam assembly; the side beam body includes a bottom plate portion and an arch bridge portion protruding from the bottom plate portion, and the arch bridge portion is located between the Z-direction ear plates on both sides.

[0011] In an optional solution of the present application, one of the forked joints at both ends located at the front end in the X direction is provided with multiple front beam mounting holes distributed in a triangular shape on the X-forward side to form a first mounting interface; the Z-direction ear plates, bottom plate parts and arch bridge parts at both ends are provided with body mounting holes to form a second mounting interface; the Y-direction ear plates on both sides are provided with lower control arm mounting holes to form a third mounting interface.

[0012] According to another aspect of the present application, a vehicle is provided, comprising a pedestrian lower leg protection beam, a left lower control arm, a right lower control arm, a gas-hydraulic power source assembly, a vehicle body, and the aforementioned subframe;

[0013] The pedestrian calf protection beam is connected to the first mounting interface of the left beam and the first mounting interface of the right beam, the body is connected to the second mounting interface of the left beam and the second mounting interface of the right beam, the left lower control arm is connected to the third mounting interface of the left beam, the right lower control arm is connected to the third mounting interface of the right beam, and the gas-liquid power source assembly is connected to the fourth mounting interface of the front crossbeam assembly and the fourth mounting interface of the rear crossbeam assembly.

[0014] In an optional solution of the present application, the gas-liquid power source assembly includes a base, a water pump, an air pump, an electromagnetic distribution valve and an air-conditioning compressor; the water pump, the air pump, the electromagnetic distribution valve and the air-conditioning compressor are all connected to the base, and the base is connected to the fourth mounting interface of the front crossbeam assembly and the fourth mounting interface of the rear crossbeam assembly.

[0015] In an optional solution of the present application, the base includes a base body and a plurality of vibration-damping pads, and the plurality of vibration-damping pads are arranged on the base body and are used to cooperate with the fourth mounting interface.

[0016] In an optional solution of the present application, the vehicle may further be equipped with an air tank, which is located in the area enclosed by the left beam, the right beam, the front crossbeam assembly and the rear crossbeam assembly, and connects the cavity of the front crossbeam assembly and the cavity of the rear crossbeam assembly.

[0017] In summary, the subframe and vehicle provided by this application have at least the following beneficial effects:

[0018] The subframe features multiple mounting interfaces for integrating the pedestrian lower leg protection beam, left and right lower control arms, and the pneumatic-hydraulic powertrain assembly, ultimately connecting it to the vehicle body. In other words, as a major structural component, the subframe boasts a wealth of mounting interfaces, facilitating multiple uses and enhancing overall vehicle integration.

[0019] Secondly, compared with traditional subframes, the subframe provided in this application only has two structural parts: side beams and crossbeam assemblies, and the crossbeams are profiles. The cost of auxiliary equipment such as molds and fixtures required reduces the cost of the entire vehicle.

[0020] In addition, for vehicles based on the corner module architecture, the lower control arm in the corner module is positioned lower, and is replaced by a method of being fixed to the side beam of the subframe instead of being fixed to the vehicle body longitudinal beam. Moreover, since the corner module itself has an integrated suspension function, the lower control arm in the corner module does not need to directly transmit road vibrations. Therefore, the lower control arm can be rigidly connected to the subframe at multiple points, which can not only optimize its own stiffness and constrained modal frequency, but also enhance the subframe's ability to resist longitudinal impact.

[0021] Finally, the subframe can be reduced in both X and Y dimensions to accommodate the elimination of the central powertrain, and the various mounting interfaces formed thereon are adapted to the vehicle based on an angular module architecture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0023] Figure 1 A partial schematic diagram of the bottom of a vehicle provided according to one embodiment of the present application;

[0024] Figure 2 for Figure 1 Partial exploded view of the vehicle bottom;

[0025] Figure 3 A schematic diagram of a subframe provided according to one embodiment of the present application;

[0026] Figure 4 for Figure 3 Exploded view of the subframe in Figure 1;

[0027] Figure 5 for Figure 3 Assembly drawing of the subframe and gas tank;

[0028] Figure 6 for Figure 4 Exploded view of the middle subframe and gas tank;

[0029] Figure 7 for Figure 4 Schematic diagram of the left beam in another perspective;

[0030] Figure 8 for Figure 1 Exploded view of the gas-liquid power source assembly;

[0031] Figure 9 for Figure 1 Schematic diagram of the pedestrian calf protection beam in Figure 1.

[0032] The reference numerals are as follows:

[0033] 1000, subframe;

[0034] 1100, left side beam; 1110, left front end face; 1111, 1112, 1113, left front beam mounting holes; 1131, 1132, left lower control arm mounting holes; 1161, 1162, 1163, 1164, left body mounting holes; 1136, left front opening; 1146, left rear opening;

[0035] 1200, right side member; 1210, right front end face; 1211, 1212, 1213, right front member mounting holes; 1231, 1232, right lower control arm mounting holes; 1261, 1262, 1263, 1264, right body mounting holes; 1236, right front opening; 1246, right rear opening;

[0036] 1300, front crossbeam assembly; 1310, first front mounting post; 1311, mounting hole; 1320, second front mounting post; 1321, mounting hole; 1331, 1332, front vent holes; 1350, front air pipe connector; 1351, air hole; 1360, front crossbeam body; 1370, front left cover; 1380, front right cover.

[0037] 1400, rear cross member assembly; 1430, first rear mounting post; 1431, mounting hole; 1440, second rear mounting post; 1441, mounting hole; 1442, 1443, rear vent holes; 1450, rear air pipe connector; 1451, air hole; 1460, rear cross member body; 1470, rear left cover; 1480, rear right cover.

[0038] 1500, gas tank; 1531, 1532, front port; 1541, 1542, rear port; 1533, front notch; 1543, rear notch;

[0039] 2000, pedestrian calf protection beam; 2110, left rear end mounting plate; 2111, 2112, 2113, left rear mounting holes; 2210, right rear end mounting plate; 2211, 2212, 2213, right rear mounting holes;

[0040] 3000, left lower control arm; 4000, right lower control arm;

[0041] 5000, gas-liquid power source assembly; 5100, base; 5110, 5120, 5130, 5140, vibration damping pads; 5111, 5121, 5131, 5141, vibration damping pad mounting holes; 5200, water pump; 5300, air pump; 5400, solenoid distribution valve; 5500, air conditioning compressor;

[0042] 6000, car body. DETAILED DESCRIPTION

[0043] In this application, features qualified as "first" or "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features identified. Features qualified as "first" or "second" may explicitly or implicitly include at least one of the qualified features. The term "plurality" generally means at least two, such as two or three, unless otherwise specifically qualified.

[0044] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0045] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it 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. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0046] The "X direction", "Y direction" and "Z direction" mentioned in this application are based on the rectangular coordinate system constructed by the vehicle, wherein the X direction is the front-to-back direction, the longitudinal direction; the Y direction is the left-to-right direction, the lateral direction; and the Z direction is the up-down direction, the vertical direction.

[0047] Figure 1 This is a partial schematic diagram of the bottom of a vehicle provided according to one embodiment of the present application. Figure 2 for Figure 1 Partial exploded view of the vehicle bottom. Figure 3 This is a schematic diagram of a subframe provided according to one embodiment of the present application. Figures 1 to 3 The vehicle at least includes a pedestrian calf protection beam 2000, a left lower control arm 3000, a right lower control arm 4000, a gas-liquid power source assembly 5000, a vehicle body 6000 and a subframe 1000.

[0048] The subframe 1000 includes a left beam 1100, a right beam 1200, a front crossbeam assembly 1300, and a rear crossbeam assembly 1400. The front crossbeam assembly 1300 and the rear crossbeam assembly 1400 are spaced apart in the X direction. The left beam 1100 is connected to one end of the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 in the Y direction, and the right beam 1200 is connected to the other end of the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 in the Y direction.

[0049] The left beam 1100 and the right beam 1200 are both side beams of the same structure and are both formed with a first mounting interface, a second mounting interface and a third mounting interface. The front crossbeam assembly 1300 and the rear crossbeam assembly 1400 are both crossbeam assemblies of the same structure and are both formed with a fourth mounting interface.

[0050] Among them, the first mounting interface is used to connect the pedestrian calf protection beam 2000, the second mounting interface is used to connect the vehicle body 6000, the third mounting interface is used to connect the lower control arm, and the fourth mounting interface is used to connect the gas-liquid power source assembly 5000.

[0051] In this embodiment, the subframe 1000 is formed by assembling and enclosing two side beams and two cross beam assemblies. The two side beams correspond to the left beam 1100 and the right beam 1200 according to different installation positions, and the two cross beam assemblies correspond to the front cross beam assembly 1300 and the rear cross beam assembly 1400 according to different installation positions.

[0052] Among them, the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 are arranged at intervals in the X direction, and the left beam 1100 and the right beam 1200 are arranged at intervals in the Y direction and are respectively connected to the Y ends of the front crossbeam assembly 1300 and the rear crossbeam assembly 1400, and then assembled and enclosed to form the subframe 1000.

[0053] The left beam 1100 and the right beam 1200 have the same structure, and the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 have the same structure. Thus, the left beam 1100 and the right beam 1200 each have their corresponding first, second, and third mounting interfaces; the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 each have their corresponding fourth mounting ports.

[0054] Furthermore, the pedestrian calf protection beam 2000 is connected to the first mounting interface of the left beam 1100 and the first mounting interface of the right beam 1200, the vehicle body 6000 is connected to the second mounting interface of the left beam 1100 and the second mounting interface of the right beam 1200, the left lower control arm 3000 is connected to the third mounting interface of the left beam 1100, the right lower control arm 4000 is connected to the third mounting interface of the right beam 1200, and the gas-liquid power source assembly 5000 is connected to the fourth mounting interface of the front crossbeam assembly 1300 and the fourth mounting interface of the rear crossbeam assembly 1400.

[0055] Specifically, the pedestrian calf protection beam 2000 is fixed by being installed at the first installation interface of the left beam 1100 and the first installation interface of the right beam 1200. The pedestrian calf protection beam 2000 is used to protect the pedestrian's calf in the event of a collision with a pedestrian.

[0056] The second mounting interface of the left beam 1100 and the second mounting interface of the right beam 1200 are used to cooperate with the vehicle body 6000, thereby connecting the various components integrated on the subframe 1000 to the vehicle body 6000. In a specific application, the second mounting interface of the left beam 1100 is connected to the left longitudinal beam of the vehicle body 6000, and the second mounting interface of the right beam 1200 is connected to the right longitudinal beam of the vehicle body 6000.

[0057] The left lower control arm 3000 is connected to the third mounting interface of the left rail 1100, and the right lower control arm 4000 is connected to the third mounting interface of the right rail 1200. It should be noted that the lower control arm here can be a component of the vehicle corner module, thereby connecting the vehicle corner module to the subframe 1000.

[0058] The gas-liquid power source assembly 5000 is fixedly mounted on the subframe 1000 by cooperating with the fourth mounting interface of the front crossbeam assembly 1300 and the fourth mounting interface of the rear crossbeam assembly 1400. The gas-liquid power source assembly 5000 integrates at least part of the gas power source and liquid power source required for the vehicle.

[0059] In summary, the subframe 1000 is formed with a variety of mounting interfaces, which are used to integrate the pedestrian lower leg protection beam 2000, the left lower control arm 3000, the right lower control arm 4000, and the gas-hydraulic power source assembly 5000, and connect it to the vehicle body 6000. In other words, as a large structural component of the vehicle, the subframe 1000 has a rich variety of mounting interfaces, allowing it to be used for multiple purposes and improving the overall vehicle integration level.

[0060] Secondly, compared with traditional subframes, the subframe 1000 provided in this application only has two structural parts: side beams and crossbeam assemblies, and the crossbeams are profiles. The cost of auxiliary equipment such as molds and fixtures required reduces the cost of the entire vehicle.

[0061] In addition, for vehicles based on a corner module architecture, the lower control arm in the corner module is positioned lower, and is now fixed to the side beam of the subframe 1000 instead of being fixed to the vehicle body longitudinal beam. Furthermore, since the corner module itself has an integrated suspension function, the lower control arm in the corner module does not need to directly transmit road vibrations. Therefore, the lower control arm can be rigidly connected to the subframe 1000 at multiple points, which can not only optimize its own stiffness and constrained modal frequency, but also enhance the subframe's ability to resist longitudinal impact.

[0062] Figure 4 for Figure 3 Exploded view of subframe 1000 in FIG. Figure 4 In a further optional embodiment, the crossbeam assembly includes a crossbeam body, a first mounting post, and a second mounting post. The first mounting post and the second mounting post are spaced apart along the Y direction on the top side of the crossbeam body and each has a mounting hole to form a fourth mounting interface.

[0063] In this embodiment, the front crossbeam assembly 1300 and the rear crossbeam assembly 1400 have the same structure. Specifically, both adopt a structure in which the first mounting post and the second mounting post are integrated into the crossbeam body. The first mounting post and the second mounting post are both provided with mounting holes, which cooperate to form a fourth mounting interface.

[0064] For the front crossbeam assembly 1300, it includes a front crossbeam body 1360, a front first mounting column 1310 and a front second mounting column 1320. The front first mounting column 1310 is provided with a mounting hole 1311, and the front second mounting column 1320 is provided with a mounting hole 1321. These two mounting holes form the fourth mounting interface of the front crossbeam assembly 1300.

[0065] For the rear crossbeam assembly 1400, it includes a rear crossbeam body 1460, a rear first mounting column 1430 and a rear second mounting column 1440. The rear first mounting column 1430 is provided with a mounting hole 1431, and the rear second mounting column 1440 is provided with a mounting hole 1441. These two mounting holes form the fourth mounting interface of the rear crossbeam assembly 1400.

[0066] In a specific application, the mounting hole 1311 of the front first mounting column 1310, the mounting hole 1321 of the front second mounting column 1320, the mounting hole 1431 of the rear first mounting column 1430, and the mounting hole 1441 of the rear second mounting column 1440 are all threaded holes, and the gas-liquid power source assembly 5000 can be fixedly mounted on the sub-frame 1000 through screw connectors and these mounting holes.

[0067] Figure 8 for Figure 1 Exploded view of the gas-liquid power source assembly 5000. Figure 8 In some optional embodiments, the gas-liquid power source assembly 5000 includes a base 5100, a water pump 5200, an air pump 5300, a solenoid distributing valve 5400, and an air conditioning compressor 5500;

[0068] The water pump 5200 , the air pump 5300 , the electromagnetic distribution valve 5400 and the air conditioning compressor 5500 are all connected to the base 5100 , and the base 5100 is connected to the fourth mounting interface of the front crossbeam assembly 1300 and the fourth mounting interface of the rear crossbeam assembly 1400 .

[0069] In this embodiment, the gas-liquid power source assembly 5000 is a four-in-one structure, that is, a water pump 5200 , an air pump 5300 , an electromagnetic distribution valve 5400 and an air-conditioning compressor 5500 are integrated on the base 5100 .

[0070] The water pump 5200 here provides power for some of the vehicle's waterways, while the air pump 5300 provides power for the air suspension, among other things. The water pump 5200, air pump 5300, solenoid distribution valve 5400, and air conditioning compressor 5500 are all vibration components, and their integration, instead of the existing distributed installation, further enhances the vehicle's integration.

[0071] Furthermore, the base 5100 includes a base body and a plurality of vibration-damping pads, which are arranged on the base body and are used to cooperate with the fourth mounting interface.

[0072] In this embodiment, the vibrations generated by the vibrating elements on the base body are all attenuated and isolated by the vibration damping pads, ensuring excellent quietness of the entire vehicle. In specific applications, the vibration damping pads are rubber pads, and the base body can be an aluminum alloy part made by a one-piece molding process such as extrusion or casting.

[0073] In the illustrated embodiment, there are four vibration damping pads, namely vibration damping pad 5110, vibration damping pad 5120, vibration damping pad 5130 and vibration damping pad 5140; and vibration damping pad 5110, vibration damping pad 5120, vibration damping pad 5130 and vibration damping pad 5140 are respectively provided with vibration damping pad mounting holes 5111, vibration damping pad mounting holes 5121, vibration damping pad mounting holes 5131 and vibration damping pad mounting holes 5141.

[0074] These four vibration damping pad mounting holes are aligned one by one with the mounting hole 1311 of the front first mounting column 1310, the mounting hole 1321 of the front second mounting column 1320, the mounting hole 1431 of the rear first mounting column 1430, and the mounting hole 1441 of the rear second mounting column 1440, and the gas-liquid power source assembly 5000 is fixed to the subframe 1000 through screw connections.

[0075] In a further optional embodiment, the crossbeam assembly further includes a left and right plugging caps and an air pipe connector. A cavity is formed within the crossbeam body, with end openings communicating with the cavity formed at both ends in the Y direction. The left and right plugging caps are respectively connected to the Y ends of the crossbeam body to seal the end openings on both sides of the Y direction. The air pipe connector is located on the top side of the crossbeam body and communicates with the cavity.

[0076] In this embodiment, the crossbeam body is a hollow structure with openings at both ends, i.e., a cavity is formed within the crossbeam body. The crossbeam body further integrates a left cover, a right cover, and a tracheal connector. The left and right covers respectively cover the open sides of the crossbeam body in the Y direction, thereby sealing the cavity. The tracheal connector is located on the top side of the crossbeam body and communicates with the cavity. In other words, the tracheal connector enables connection of the cavity within the crossbeam body to other devices.

[0077] In specific applications, the cavity in the crossbeam body can be used as an air storage chamber in a braking system or an air suspension system, and is connected to a pneumatic actuator through an air pipe joint to achieve corresponding functions.

[0078] The front crossbeam assembly 1300 includes a front left cover 1370, a front right cover 1380, and a front air pipe connector 1350. The rear crossbeam assembly 1400 includes a rear left cover 1470, a rear right cover 1480, and a rear air pipe connector 1450. The front air pipe connector 1350 has an air hole 1351 for connecting to the air circuit, and the rear air pipe connector 1450 also has an air hole 1451 for connecting to the air circuit.

[0079] In some application scenarios, the cavity of the front crossbeam assembly 1300 and the cavity of the rear crossbeam assembly 1400 both serve as air storage chambers in a braking system or air storage chambers in an air suspension system; in other usage scenarios, one of the cavity of the front crossbeam assembly 1300 and the cavity of the rear crossbeam assembly 1400 serves as an air storage chamber in a braking system, and the other serves as an air storage chamber in an air suspension system.

[0080] In a specific application, the crossbeam body can be made of an aluminum alloy profile. In the illustrated embodiment, the crossbeam body is a profile with a rectangular cross section. Of course, the shape of the crossbeam body is not limited to this. For example, the cross section of the crossbeam body can also be circular, trapezoidal, etc.

[0081] Figure 5 for Figure 3 FIG. 1 is an assembly drawing of the subframe 1000 and the gas tank 1500. Figure 6 for Figure 4 Exploded view of the middle subframe 1000 and the gas tank 1500. In some optional embodiments, the vehicle may further include an additional gas tank 1500, which is located within the area enclosed by the left beam 1100, the right beam 1200, the front crossbeam assembly 1300, and the rear crossbeam assembly 1400, and connects the cavity of the front crossbeam assembly 1300 with the cavity of the rear crossbeam assembly 1400.

[0082] In this embodiment, the subframe 1000 is a frame-type structure. To increase the gas storage capacity, an additional gas tank 1500 is provided. Furthermore, the gas tank 1500 is located within the area enclosed by the subframe 1000 and communicates with the cavities of the front crossbeam assembly 1300 and the rear crossbeam assembly 1400.

[0083] In some optional embodiments, the beam body is further provided with at least one vent hole, which is located on the X-direction inner side wall of the beam body and is used to connect the cavity with the gas storage tank 1500 .

[0084] In this embodiment, the cavity of the crossbeam body is connected to the gas tank 1500 through a vent hole on the crossbeam body. The vent hole is arranged on the X-inner side of the crossbeam body to facilitate connection with the gas tank 1500 located in the subframe 1000.

[0085] It is understood that the number of vent holes depends on the structure of the gas tank 1500. For example, if the gas tank 1500 has a multi-chamber structure, the number of vent holes must be adjusted accordingly to match the multiple chambers of the gas tank 1500. It should be noted that the above-mentioned internal and external relationship is mainly determined based on the center of the subframe 1000.

[0086] exist Figure 6 In the illustrated embodiment, the gas storage tank 1500 is a dual-chamber structure, the front crossbeam body 1360 is provided with a front vent hole 1331 and a front vent hole 1332 , and the rear crossbeam body 1460 is provided with a rear vent hole 1442 and a rear vent hole 1443 .

[0087] The front port 1531 and the rear port 1541 of one chamber of the gas storage tank 1500 are connected to the front vent 1331 and the rear vent 1443 respectively. The front port 1532 and the rear port 1542 of another chamber of the gas storage tank 1500 are connected to the front vent 1332 and the rear vent 1442 respectively.

[0088] In addition, a partition extending along X is provided in the gas storage tank 1500 to separate the chamber of the gas storage tank 1500 into a dual-chamber structure, and a front notch 1533 and a rear notch 1543 are provided at both ends of the partition to connect the chambers and increase the gas circulation speed.

[0089] Figure 7 for Figure 4 A schematic diagram of the left beam 1100 in another perspective. Figure 4 and Figure 7 In some optional embodiments, the side beam includes a side beam body and bifurcated joints arranged at both ends of the side beam body in the X direction.

[0090] The bifurcated joint includes a Z-direction ear plate, a Y-direction ear plate and a slot. The Z-direction ear plate extends upward, and the Y-direction ear plate extends outward along the Y direction. The slot is located below the Z-direction ear plate and has an opening for accommodating the end of the beam assembly.

[0091] The side beam body includes a bottom plate portion and an arch bridge portion protruding from the bottom plate portion, and the arch bridge portion is located between the Z-direction ear plates on both sides.

[0092] In this embodiment, the side beam is composed of a side beam body and bifurcated joints located at both ends of the side beam body in the X direction. The bifurcated joints have at least Z-direction lugs, Y-direction lugs, and a slot. The side beam body has at least a bottom plate portion and an arch bridge portion. The opening of the slot can accommodate the end of the crossbeam assembly to connect the side beam to the crossbeam assembly.

[0093] It should be noted that mounting holes may be provided on the bifurcated joint and the side beam body to form corresponding mounting interfaces. In this embodiment, the side beam may be manufactured using an integral molding process.

[0094] Please combine Figure 4 and Figure 7 For the left beam 1100, the slots at its ends in the X direction correspond to the left front opening 1136 and the left rear opening 1146. For the right beam 1200, the slots at its ends in the X direction correspond to the right front opening 1236 and the right rear opening 1246. The left front opening 1136 and the right front opening 1236 are connected to the ends in the Y direction of the front crossbeam assembly 1300, while the left rear opening 1146 and the right rear opening 1246 are connected to the ends in the Y direction of the rear crossbeam assembly 1400 and secured by welding.

[0095] In specific applications, the side beams are cast aluminum parts made by a casting process, and the crossbeam body in the crossbeam assembly is an aluminum profile. The aluminum profile is also made by an integrated molding process and can be purchased directly. Only the mold of the side beam needs to be made, so the production cost is relatively low. In addition, all are assembled using integrated molding components to ensure the structural strength of the subframe 1000.

[0096] Furthermore, the side beams and cross beam assemblies only form welds at the locations of the slots, which reduces the number of welding points and welds, reduces the amount of welding thermal deformation, improves welding efficiency and manufacturing accuracy of the welding assembly, and ensures the accuracy of the entire subframe 1000.

[0097] In a further optional embodiment, one of the bifurcated joints at both ends located at the front end in the X direction is provided with a plurality of front beam mounting holes distributed in a triangular shape on the X-forward side to form a first mounting interface.

[0098] The Z-direction ear plates, bottom plate portion and arch bridge portion at both ends are provided with body mounting holes to form a second mounting interface. The Y-direction ear plates on both sides are provided with lower control arm mounting holes to form a third mounting interface.

[0099] In this embodiment, a first mounting interface is formed on the X-forward side of the bifurcated joint at the X-front end of the side beam. The first mounting interface comprises a plurality of front beam mounting holes arranged in a triangular pattern. The second mounting interface comprises a plurality of body mounting holes arranged in the Z-direction ear plates, the bottom plate, and the arch bridge at both ends. The third mounting interface comprises a plurality of lower control arm mounting holes arranged in the Y-direction ear plates at both ends.

[0100] For the left beam 1100 , a left front beam mounting hole 1111 , a left front beam mounting hole 1112 and a left front beam mounting hole 1113 are provided on the X-forward side of the bifurcated joint at the front end in the X direction. The three left front beam mounting holes are distributed in a triangle.

[0101] For the right beam 1200 , the X-forward side of the bifurcated joint at the front end of the X direction is provided with right front beam mounting holes 1211 , 1212 and 1213 , which are also distributed in a triangle.

[0102] Figure 9 for Figure 1 Schematic diagram of the pedestrian lower leg protection beam in 2000. Figure 9 The ends of the two longitudinal beams of the pedestrian calf protection beam 2000 are correspondingly provided with a left rear end mounting plate 2110 and a right rear end mounting plate 2210. The left rear end mounting plate 2110 is provided with a left rear mounting hole 2111, a left rear mounting hole 2112 and a left rear mounting hole 2113, and the right rear end mounting plate 2210 is provided with a right rear mounting hole 2211, a right rear mounting hole 2212 and a right rear mounting hole 2213.

[0103] The X-forward side of the left beam 1100 and the X-forward side of the right beam 1200 are respectively provided with a left front end surface 1110 and a right front end surface 1210 to respectively cooperate with the left rear end mounting plate 2110 and the right rear end mounting plate 2210 of the pedestrian calf protection beam 2000, and align each left front mounting hole with each left rear mounting hole one by one, and each right front mounting hole with each right rear mounting hole one by one, and pass screw parts through to fix the pedestrian calf protection beam.

[0104] Furthermore, for the left beam 1100, the Z-direction ear plates at both ends are correspondingly provided with left body mounting holes 1161 and left body mounting holes 1163, the arch bridge portion is provided with left body mounting holes 1162, and the bottom plate portion is provided with left body mounting holes 1164. These four left body mounting holes constitute the second mounting interface of the left beam 1100.

[0105] For the right side beam 1200, the Z-direction ear plates at both ends are correspondingly provided with right body mounting holes 1261 and right body mounting holes 1263, the arch bridge part is provided with right body mounting holes 1263, and the bottom plate part is provided with right body mounting holes 1264. These four right body mounting holes constitute the second mounting interface of the right side beam 1200.

[0106] Furthermore, for the left beam 1100 , the Y-direction ear plates at both ends thereof are correspondingly provided with a left lower control arm mounting hole 1131 and a left lower control arm mounting hole 1132 , and these two left lower control arm mounting holes constitute the third mounting interface of the left beam 1100 .

[0107] For the right beam 1200 , the Y-direction ear plates at both ends thereof are correspondingly provided with a right lower control arm mounting hole 1231 and a right lower control arm mounting hole 1232 . These two right lower control arm mounting holes constitute the third mounting interface of the right beam 1200 .

[0108] It should be noted that the subframe 1000 provided in this application is applicable to a vehicle based on a corner module architecture. The subframe 1000 can reduce its dimensions in the X and Y directions to adapt to the situation where the central powertrain is eliminated.

[0109] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A subframe, characterized in that: Including left beam, right beam, front crossbeam assembly, and rear crossbeam assembly; The front crossbeam assembly and the rear crossbeam assembly are spaced apart in the X direction, the left beam is connected to one end of the front crossbeam assembly and the rear crossbeam assembly in the Y direction, and the right beam is connected to the other end of the front crossbeam assembly and the rear crossbeam assembly in the Y direction; The left beam and the right beam are both side beams of the same structure and are both formed with a first mounting interface, a second mounting interface, and a third mounting interface; the front crossbeam assembly and the rear crossbeam assembly are both crossbeam assemblies of the same structure and are both formed with a fourth mounting interface; Among them, the first mounting interface is used to connect the pedestrian calf protection beam, the second mounting interface is used to connect the vehicle body, the third mounting interface is used to connect the lower control arm, and the fourth mounting interface is used to connect the gas-liquid power source assembly.

2. The subframe according to claim 1, characterized in that: The crossbeam assembly includes a crossbeam body, a first mounting post and a second mounting post; The first mounting post and the second mounting post are spaced apart along the Y direction on the top side of the beam body and are both provided with mounting holes to form the fourth mounting interface.

3. The subframe according to claim 2, characterized in that: The crossbeam assembly also includes a left blocking cover, a right blocking cover and an air pipe joint; A cavity is formed in the crossbeam body and end openings communicating with the cavity are formed at both ends in the Y direction. The left blocking cover and the right blocking cover are respectively connected to the two ends in the Y direction of the crossbeam body to seal the end openings on both sides in the Y direction. The air pipe joint is arranged on the top side of the beam body and communicates with the cavity.

4. The subframe according to claim 3, characterized in that: The crossbeam body is further provided with at least one vent hole, which is located on the X-direction inner side wall of the crossbeam body and is used to connect the cavity with the gas storage tank.

5. The subframe according to any one of claims 1 to 4, characterized in that: The side beam comprises a side beam body and bifurcated joints arranged at both ends of the side beam body in the X direction; The bifurcated joint includes a Z-direction ear plate, a Y-direction ear plate, and a slot. The Z-direction ear plate extends upward, and the Y-direction ear plate extends outward along the Y direction. The slot is located below the Z-direction ear plate and has an opening formed therein for receiving an end portion of the crossbeam assembly. The side beam body includes a bottom plate portion and an arch bridge portion protruding from the bottom plate portion, and the arch bridge portion is located between the Z-direction ear plates on both sides.

6. The subframe according to claim 5, characterized in that: One of the bifurcated joints at both ends, located at the front end in the X direction, is provided with a plurality of front beam mounting holes distributed in a triangular pattern on the X-forward side to form the first mounting interface; The Z-direction ear plates at both ends, the bottom plate portion, and the arch bridge portion are all provided with body mounting holes to form the second mounting interface; The Y-direction ear plates on both sides are provided with lower control arm mounting holes to form the third mounting interface.

7. A vehicle, characterized in that: The vehicle comprises a pedestrian lower leg protection beam, a left lower control arm, a right lower control arm, a gas-liquid power source assembly, a vehicle body, and a subframe according to any one of claims 1 to 6; The pedestrian calf protection beam is connected to the first mounting interface of the left beam and the first mounting interface of the right beam, the vehicle body is connected to the second mounting interface of the left beam and the second mounting interface of the right beam, the left lower control arm is connected to the third mounting interface of the left beam, the right lower control arm is connected to the third mounting interface of the right beam, and the gas-liquid power source assembly is connected to the fourth mounting interface of the front crossbeam assembly and the fourth mounting interface of the rear crossbeam assembly.

8. The vehicle according to claim 7, characterized in that The gas-liquid power source assembly includes a base, a water pump, an air pump, an electromagnetic distribution valve and an air-conditioning compressor; The water pump, the air pump, the electromagnetic distribution valve and the air-conditioning compressor are all connected to the base, and the base is connected to the fourth mounting interface of the front crossbeam assembly and the fourth mounting interface of the rear crossbeam assembly.

9. The vehicle according to claim 8, characterized in that The base includes a base body and a plurality of vibration-damping pads. The plurality of vibration-damping pads are arranged on the base body and are used to cooperate with the fourth mounting interface.

10. The vehicle according to any one of claims 7 to 9, characterized in that An air storage tank may also be provided, which is located in the area enclosed by the left beam, the right beam, the front crossbeam assembly and the rear crossbeam assembly, and connects the cavity of the front crossbeam assembly with the cavity of the rear crossbeam assembly.

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