Subframe and vehicle

Abstract

The application discloses a subframe and a vehicle, the subframe comprising longitudinal beams and a first cross beam, the longitudinal beams being provided in two, the two longitudinal beams being spaced apart in a left-right direction; the first cross beam comprising a pump body, the pump body being connected between the two longitudinal beams. According to the subframe, the pump body is configured as a cross beam structure of the subframe, so that the pump body can be assembled, the layout of the subframe can be better optimized, and in addition, the pump body is used as the cross beam structure, so that the cross beam of the subframe can be reduced, and the weight of the subframe can be better reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a subframe and a vehicle. Background Technology

[0002] Active suspension is an intelligent suspension system that can adjust suspension parameters (such as damping force, spring stiffness, and vehicle height) in real time, enabling the vehicle to adapt to different driving scenarios and road conditions. The pump body of active suspension is generally mounted on the subframe. However, the subframe in related technologies consists of a front crossbeam, left and right longitudinal beams, a rear crossbeam, and other supports or reinforcing plates. The subframe provides mounting points for other surrounding parts, and the space layout is relatively tight, which increases the difficulty of assembling the pump body. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the related art. To this end, this application proposes a subframe and a vehicle including the subframe, wherein the subframe can be better optimized in layout, thereby facilitating the assembly of the pump body, and in addition, the weight of the subframe can be better reduced.

[0004] In a first aspect, embodiments of this application provide a subframe, the subframe comprising: two longitudinal beams spaced apart in a left-right direction; and a first crossbeam comprising a pump body connected between the two longitudinal beams.

[0005] In the above-mentioned technical approach, by constructing the pump body as a crossbeam structure of the subframe, the pump body can be assembled, and the layout of the subframe can be optimized. In addition, since the pump body is a crossbeam structure, the number of crossbeams in the subframe can be reduced, and the weight of the subframe can be reduced.

[0006] In some embodiments, the subframe further includes: a first connecting bracket and a first fixing bolt; one end of the first connecting bracket is connected to the longitudinal beam, the other end of the first connecting bracket is provided with a first through hole, the pump body is provided with a second through hole corresponding to the first through hole, and the first fixing bolt is sequentially inserted through the first through hole and the second through hole to connect the pump body and the first connecting bracket.

[0007] In the above-mentioned technical method, the first fixing bolt is used to connect the pump body and the first connecting bracket, which not only reduces the assembly difficulty between the pump body and the first connecting bracket, but also reduces the transmission of vibration between the pump body and the first connecting bracket, thereby improving the NVH performance of the whole vehicle.

[0008] In some embodiments, the first connecting bracket includes a first bracket plate and a second bracket plate, which are located on both sides of the pump body in the vertical direction.

[0009] In the above-mentioned technical approach, the first bracket plate and the second bracket plate can effectively limit the position of the pump body in the vertical direction, improve the connection reliability between the pump body and the first connecting bracket, and reduce the transmission of vibration between the pump body and the first connecting bracket, thereby improving the NVH performance of the whole vehicle.

[0010] In some embodiments, the subframe further includes: a second connecting bracket, a sleeve, and a second fixing bolt; one end of the second connecting bracket is connected to the pump body, the other end of the second connecting bracket is provided with a third through hole, the longitudinal beam is provided with a fourth through hole opposite to the third through hole, the sleeve is sequentially inserted through the third through hole and the fourth through hole, and the second fixing bolt is inserted through the sleeve to connect the longitudinal beam and the second connecting bracket.

[0011] In the above-mentioned technical method, the sleeve is connected between the longitudinal beam and the second connecting bracket by a second fixing bolt. This not only reduces the assembly difficulty between the longitudinal beam and the second connecting bracket, but also reduces the transmission of vibration between the longitudinal beam and the second connecting bracket, thereby improving the NVH performance of the whole vehicle.

[0012] In some embodiments, the second connecting bracket includes a third bracket plate and a fourth bracket plate, which are located on the upper and lower sides of the longitudinal beam, respectively, in the vertical direction.

[0013] In the above-mentioned technical approach, the third and fourth bracket plates can better restrict the position of the pump body in the vertical direction, improve the connection reliability between the longitudinal beam and the second connecting bracket, and reduce the transmission of vibration between the longitudinal beam and the second connecting bracket, thereby improving the NVH performance of the whole vehicle.

[0014] In some embodiments, the pump body has a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion being connected to two longitudinal beams respectively, and the pump body is provided with reinforcing ribs, the reinforcing ribs extending from the first connecting portion to the second connecting portion.

[0015] In the above-mentioned technical methods, the reinforcing ribs can effectively improve the structural strength of the pump body and give the subframe better stability.

[0016] In some embodiments, the pump body is a cast aluminum part.

[0017] In the above-mentioned technical approach, using a cast aluminum pump body can give the pump body better rigidity and strength, which can better improve the overall rigidity of the subframe and provide better lateral support for the subframe.

[0018] Secondly, embodiments of this application provide a vehicle including an active suspension and a subframe according to a first aspect of this application, wherein the pump body is in communication with the active suspension.

[0019] In the above-described technical approach, by providing a subframe as described in the above embodiments, and by constructing the pump body as a crossbeam structure of the subframe, the pump body can be assembled, and the layout of the subframe can be optimized. Furthermore, since the pump body is used as a crossbeam structure, the number of crossbeams in the subframe can be reduced, and the weight of the subframe can be reduced.

[0020] In some embodiments, the subframe is a front subframe, the first crossbeam is a rear crossbeam, and the vehicle further includes a body that is connected to the rear end of the longitudinal beam.

[0021] In the above-mentioned technical approach, the rear end of the longitudinal beam is connected to the vehicle body, which not only achieves a better connection between the subframe and the vehicle body, but also reduces interference with the pump body, thereby improving the reliability of the pump body.

[0022] In some embodiments, the longitudinal beam is provided with a fifth through hole, the vehicle body is provided with a sixth through hole opposite to the fifth through hole, and the vehicle further includes a third sleeve and a third connecting bolt. The third sleeve passes through the fifth through hole and the sixth through hole in sequence, and the third connecting bolt passes through the third sleeve to connect the vehicle body and the longitudinal beam.

[0023] In the above-mentioned technical method, the third sleeve is connected between the longitudinal beam and the body with the third fixing bolt. This not only reduces the assembly difficulty between the longitudinal beam and the body, but also reduces the transmission of vibration between the longitudinal beam and the body, thereby improving the NVH performance of the whole vehicle.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of the subframe at one angle according to the first embodiment of this application.

[0026] Figure 2 This is a structural schematic diagram of the subframe from another angle according to the first embodiment of this application.

[0027] Figure 3 This is a structural schematic diagram of the subframe according to the second embodiment of this application.

[0028] Figure label: 100. Subframe; 1. Longitudinal beam; 11. Fifth through hole; 2. First crossbeam; 21. Pump body; 3. Second crossbeam; 4. First connecting bracket; 41. First bracket plate; 42. Second bracket plate; 5. First through hole; 6. Second connecting bracket; 61. Third through hole; 62. Third bracket plate; 7. Third sleeve. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0034] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two).

[0035] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0036] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0037] Active suspension is an intelligent suspension system that can adjust suspension parameters (such as damping force, spring stiffness, and vehicle height) in real time, enabling the vehicle to adapt to different driving scenarios and road conditions. The pump body of active suspension is generally mounted on the subframe. However, the subframe in related technologies consists of a front crossbeam, left and right longitudinal beams, a rear crossbeam, and other supports or reinforcing plates. The subframe provides mounting points for other surrounding parts, and the space layout is relatively tight, which increases the difficulty of assembling the pump body.

[0038] Based on the above considerations, in order to facilitate the assembly of the pump body, the applicant has conducted in-depth research and designed a subframe. By constructing the pump body as the crossbeam structure of the subframe, the assembly of the pump body can be realized, and the layout of the subframe can be optimized. In addition, since the pump body is used as the crossbeam structure, the number of crossbeams in the subframe can be reduced, and the weight of the subframe can be reduced.

[0039] The following is for reference. Figures 1-3 Description of a subframe 100 according to an embodiment of the first aspect of this application.

[0040] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of the subframe 100 at one angle according to the first embodiment of this application.

[0041] According to the embodiments of this application, the subframe 100 includes a longitudinal beam 1 and a first crossbeam 2. There are two longitudinal beams 1, which are spaced apart in the left and right direction. The first crossbeam 2 includes a pump body 21, which is connected between the two longitudinal beams 1.

[0042] In other words, the two longitudinal beams 1 can be the left longitudinal beam 1 and the right longitudinal beam 1 of the subframe 100, respectively. The subframe 100 includes a first crossbeam 2 and a second crossbeam 3. For example, the subframe 100 can be a front subframe 100. Thus, the first crossbeam 2 can be a rear crossbeam, and the second crossbeam 3 can be a front crossbeam. The first crossbeam 2 can be composed of a pump body 21. That is, in this application, the pump body 21 is directly used as a crossbeam structure. The pump body 21, the second crossbeam 3, and the two longitudinal beams 1 together constitute the subframe 100. Thus, compared with the related technology, in order to assemble the pump body, the subframe is generally partially avoided to create a recess or blank area to provide installation space for the pump body. However, in this application, the pump body 21 is used to replace the rear crossbeam. This not only realizes the assembly of the pump body 21 and optimizes the spatial layout of the subframe 100, but also reduces the number of crossbeams in the subframe 100 and achieves better weight reduction of the subframe 100 because the pump body 21 is used as a crossbeam structure.

[0043] After the pump body 21 is constructed as the rear crossbeam of the subframe 100, the pump body 21 can be connected to the active suspension drive. For example, the pump body 21 can be a liquid pump or a gas pump, and this application does not limit it.

[0044] In the above-mentioned technical method, by constructing the pump body 21 as the crossbeam structure of the subframe 100, the pump body 21 can be assembled, and the layout of the subframe 100 can be optimized. In addition, since the pump body 21 is used as the crossbeam structure, the number of crossbeams in the subframe 100 can be reduced, and the weight of the subframe 100 can be reduced.

[0045] Please refer to Figure 2 , Figure 2 This is a structural schematic diagram of the subframe 100 according to the first embodiment of this application from another angle.

[0046] In some embodiments of this application, the subframe 100 further includes: a first connecting bracket 4 and a first fixing bolt; one end of the first connecting bracket 4 is connected to the longitudinal beam 1, and the other end of the first connecting bracket 4 is provided with a first through hole 5. The pump body 21 is provided with a second through hole corresponding to the first through hole 5. The first fixing bolt is sequentially inserted into the first through hole 5 and the second through hole to connect the pump body 21 and the first connecting bracket 4.

[0047] In other words, when the first connecting bracket 4 is assembled with the pump body 21, the second through hole of the pump body 21 can be aligned with the first through hole 5 of the first connecting bracket 4, and then the first fixing bolt can be inserted into the first through hole 5 and the second through hole. The first fixing bolt can be well positioned and connected between the pump body 21 and the first connecting bracket 4, and the stability is good.

[0048] In addition, the pump body 21 will vibrate to a certain extent during operation. The first fixing bolt can effectively reduce the transmission of the vibration of the pump body 21 toward the first connecting bracket 4 and the longitudinal beam 1, thereby reducing the transmission of vibration toward the vehicle body and helping to improve the NVH performance of the whole vehicle.

[0049] For example, the first connecting bracket 4 can be welded to the longitudinal beam 1.

[0050] For example, the number of first through holes 5 can be one, two or more. Similarly, the second through holes correspond to the first through holes 5. The number of second through holes is not described here.

[0051] In the above-mentioned technical method, the first fixing bolt is used to connect the pump body 21 and the first connecting bracket 4, which not only reduces the assembly difficulty between the pump body 21 and the first connecting bracket 4, but also reduces the transmission of vibration between the pump body 21 and the first connecting bracket 4, thereby improving the NVH performance of the whole vehicle.

[0052] In some embodiments of this application, the first connecting bracket 4 includes a first bracket plate 41 and a second bracket plate 42, with the first bracket plate 41 and the second bracket plate 42 located on both sides of the pump body 21 along the vertical direction.

[0053] In other words, the first bracket plate 41 and the second bracket plate 42 can effectively limit the position of the pump body 21 in the vertical direction. Furthermore, both the first bracket plate 41 and the second bracket plate 42 are provided with first through holes 5. For example, the first fixing bolt can pass through the first through hole 5 of the first bracket plate 41, the second through hole of the pump body 21, and the first through hole 5 of the second bracket plate 42 in sequence. The connection method is simple and has good stability. It can also effectively reduce the transmission of vibration between the pump body 21 and the first connecting bracket 4, thereby helping to improve the NVH performance of the whole vehicle.

[0054] For example, the first connecting bracket 4 may include a plurality of spaced-apart bracket plates, two of which are adjacent to each other, namely the first bracket plate 41 and the second bracket plate 42. This application does not limit the number of bracket plates. Furthermore, in order to improve the connection strength between the first connecting bracket 4 and the pump body 21, the pump body 21 may have a first part and a second part at its end, and the first part and the second part may extend into the space between different bracket plates.

[0055] In the above-mentioned technical method, the first bracket plate 41 and the second bracket plate 42 can better restrict the position of the pump body 21 in the vertical direction, can better improve the connection reliability between the pump body 21 and the first connecting bracket 4, and can also better reduce the transmission of vibration between the pump body 21 and the first connecting bracket 4, thereby helping to improve the NVH performance of the whole vehicle.

[0056] Please refer to Figure 3 , Figure 3 This is a structural schematic diagram of the subframe 100 according to the second embodiment of this application.

[0057] In some embodiments of this application, the subframe 100 further includes: a second connecting bracket 6, a sleeve, and a second fixing bolt; one end of the second connecting bracket 6 is connected to the pump body 21, and the other end of the second connecting bracket 6 is provided with a third through hole 61. The longitudinal beam 1 is provided with a fourth through hole opposite to the third through hole 61. The sleeve passes through the third through hole 61 and the fourth through hole in sequence, and the second fixing bolt passes through the sleeve to connect the longitudinal beam 1 and the second connecting bracket 6.

[0058] In other words, when the second connecting bracket 6 is assembled with the longitudinal beam 1, the fourth through hole of the longitudinal beam 1 can be aligned with the third through hole 61 of the second connecting bracket 6. Then, the sleeve can be inserted into the third through hole 61 and the fourth through hole. The sleeve can be well positioned and connected between the longitudinal beam 1 and the second connecting bracket 6, with good stability. By inserting the sleeve through the second fixing bolt, the assembly difficulty when the second fixing bolt is directly inserted into the third through hole 61 and the fourth through hole can be reduced, and the assembly efficiency can be improved.

[0059] In addition, the sleeve can reduce the direct frictional contact between the second fixing bolt and the longitudinal beam 1 and the second connecting bracket 6. Specifically, during the assembly process, the sleeve can reduce the frictional damage to the longitudinal beam 1 and the second connecting bracket 6 when the second fixing bolt is tightened. During vehicle operation, the sleeve can also reduce the frictional damage between the second fixing bolt and the longitudinal beam 1 and the second connecting bracket 6 caused by vibration. Furthermore, the pump body 21 will have a certain amount of vibration during operation. By using the sleeve in conjunction with the second fixing bolt, the vibration of the pump body 21 can be effectively reduced from being transmitted to the longitudinal beam 1 through the second connecting bracket 6, thereby reducing the transmission of vibration to the vehicle body and helping to improve the NVH performance of the whole vehicle.

[0060] For example, the second connecting bracket 6 can be welded to the pump body 21.

[0061] For example, the second connecting bracket 6 and the pump body 21 can be an integrally formed structure. That is, during production, the pump structure can be produced by integral molding. The two parts of the pump structure are the pump body 21 and the second connecting bracket 6, thereby making the pump structure have better consistency.

[0062] For example, the number of third through holes 61 can be one, two or more. Similarly, there is a corresponding relationship between the third through holes 61 and the fourth through holes. The number of fourth through holes is not described here.

[0063] In the above-mentioned technical method, the sleeve is connected between the longitudinal beam 1 and the second connecting bracket 6 with the second fixing bolt. This not only reduces the assembly difficulty between the longitudinal beam 1 and the second connecting bracket 6, but also reduces the transmission of vibration between the longitudinal beam 1 and the second connecting bracket 6, thereby improving the NVH performance of the whole vehicle.

[0064] In some embodiments of this application, the second connecting bracket 6 includes a third bracket plate 62 and a fourth bracket plate, which are located on the upper and lower sides of the longitudinal beam 1 respectively along the vertical direction.

[0065] In other words, the third bracket plate 62 and the fourth bracket plate can effectively limit the position of the pump body 21 in the vertical direction. Furthermore, both the third bracket plate 62 and the fourth bracket plate are provided with a third through hole 61. For example, the sleeve can pass through the third through hole 61 of the third bracket plate 62, the fourth through hole of the longitudinal beam 1, and the third through hole 61 of the fourth bracket plate in sequence, and then be fixed by the second fixing bolt. The connection method is simple and has good stability. It can also effectively reduce the transmission of vibration between the longitudinal beam 1 and the second connecting bracket 6, thereby helping to improve the NVH performance of the whole vehicle.

[0066] For example, the second connecting bracket 6 may include a plurality of spaced-apart bracket plates, two of which are adjacent to each other, namely the third bracket plate 62 and the fourth bracket plate. This application does not limit the number of bracket plates. Furthermore, in order to improve the connection strength between the first connecting bracket 4 and the longitudinal beam 1, one side of the longitudinal beam 1 may have a third part and a fourth part, and the third part and the fourth part may extend into the space between different bracket plates.

[0067] In the above-mentioned technical method, the third bracket plate 62 and the fourth bracket plate can better restrict the position of the pump body 21 in the vertical direction, can also better improve the connection reliability between the longitudinal beam 1 and the second connecting bracket 6, and can also better reduce the transmission of vibration between the longitudinal beam 1 and the second connecting bracket 6, thereby helping to improve the NVH performance of the whole vehicle.

[0068] In some embodiments of this application, the pump body 21 has a first connecting portion and a second connecting portion, which are respectively connected to two longitudinal beams. The pump body 21 is provided with reinforcing ribs that extend from the first connecting portion to the second connecting portion.

[0069] like Figure 1In the example shown, the pump body 21 is connected to the longitudinal beam 1 through the first connecting bracket 4. The left and right ends of the pump body 21 are the first connecting part and the second connecting part, respectively. Both the first connecting part and the second connecting part have second through holes. The reinforcing rib can be connected between the two second through holes. In this way, the structural strength of the pump body 21 can be improved, and the lateral stiffness of the pump body can also be improved, so that the pump body 21 is not easily damaged when the vehicle is in a side collision.

[0070] Similarly, for example Figure 3 In the example shown, the pump body 21 and the second connecting bracket 6 can be an integrally formed pump structure. In the left-right direction, the reinforcing ribs can be set between the two third through holes 61, which will not be described in detail here.

[0071] In the above-mentioned technical methods, the reinforcing ribs can effectively improve the structural strength of the pump body 21 and enable the subframe 100 to have better stability.

[0072] For example, the reinforcing rib can extend in the left-right direction or in the up-down direction. This application does not limit the direction of extension of the reinforcing rib.

[0073] For example, the reinforcing ribs can be arranged on the front or rear side of the pump body 21, or on the upper or lower side, and this application does not limit this.

[0074] For example, the reinforcing rib can be a cylindrical reinforcing rib, such as a cylindrical or polygonal cross-section.

[0075] In some embodiments of this application, the pump body 21 is a cast aluminum part.

[0076] In the above-mentioned technical method, the pump body 21 is made of cast aluminum, which can give the pump body 21 good rigidity and strength, and can better improve the overall rigidity of the subframe 100 and provide better lateral support for the subframe 100.

[0077] For example, the pump body 21 is a one-piece molded part.

[0078] Secondly, embodiments of this application also provide a vehicle.

[0079] The vehicle according to the embodiments of this application includes an active suspension and a subframe 100 of any of the above embodiments, and the pump body 21 is connected to the active suspension.

[0080] In the above-described technical approach, by providing the subframe 100 of the above embodiment, and by constructing the pump body 21 as the crossbeam structure of the subframe 100, the assembly of the pump body 21 can be realized, and the layout of the subframe 100 can be optimized. In addition, since the pump body 21 is used as the crossbeam structure, the number of crossbeams in the subframe 100 can be reduced, and the weight of the subframe 100 can be reduced.

[0081] For example, the vehicle may include a range-extended vehicle or a pure electric vehicle. In a pure electric vehicle, the size of the motor is smaller than that of the engine in a gasoline vehicle, and the front compartment space can accommodate the arrangement of the active suspension pump body 21. However, by arranging the subframe 100 of this application embodiment, the layout of the front compartment space can also be optimized. For range-extended vehicles, since the engine and motor are present at the same time, the front compartment space is easily confined, making it difficult to arrange the active suspension pump body 21. However, by constructing the pump body 21 as the crossbeam structure of the subframe 100 in this application embodiment, the pump body 21 can be assembled, and the layout of the subframe 100 can be optimized. In addition, since the pump body 21 is used as the crossbeam structure, the number of crossbeams in the subframe 100 can be reduced, and the weight of the subframe 100 can also be reduced.

[0082] In addition, by replacing the rear crossbeam with the pump body 21, the processing technology of the rear crossbeam and the mold for processing the rear crossbeam can be reduced, thereby reducing the processing cost of the subframe 100.

[0083] In this application, the pump body 21 is detachably connected to the longitudinal beam 1. Therefore, when adapted to a vehicle without active suspension, the subframe 100 of this application can disassemble the pump body 21 and then assemble a common beam in the position of the pump body 21, thereby achieving partial universality of the subframe 100.

[0084] In some embodiments of this application, the subframe 100 is a front subframe 100, the first crossbeam 2 is a rear crossbeam, and the vehicle also includes a body, which is connected to the rear end of the longitudinal beam 1.

[0085] In other words, taking a range-extended vehicle as an example, both the engine and the electric motor are mounted on the subframe 100, which is the front subframe 100. The vehicle can be constructed as a front-wheel drive vehicle. The rear crossbeam is composed of the pump body 21. This application connects the rear end of the longitudinal beam 1 to the vehicle body, which not only better realizes the connection between the subframe 100 and the vehicle body, but also reduces interference with the pump body 21, thereby improving the reliability of the pump body 21.

[0086] For example, the subframe 100 can also be a rear subframe 100, that is, the vehicle can be configured as a rear-wheel drive vehicle, and this application does not limit this.

[0087] In the above-mentioned technical method, the rear end of the longitudinal beam 1 is connected to the vehicle body, which not only achieves a better connection between the subframe 100 and the vehicle body, but also reduces interference with the pump body 21, thereby improving the reliability of the pump body 21.

[0088] In some embodiments of this application, the longitudinal beam 1 is provided with a fifth through hole 11, the vehicle body is provided with a sixth through hole opposite to the fifth through hole 11, and the vehicle also includes a third sleeve 7 and a third connecting bolt. The third sleeve 7 is sequentially inserted through the fifth through hole 11 and the sixth through hole, and the third connecting bolt is inserted through the third sleeve 7 to connect the vehicle body and the longitudinal beam 1.

[0089] In other words, when the longitudinal beam 1 is assembled with the vehicle body, the fifth through hole 11 of the longitudinal beam 1 can be aligned with the sixth through hole of the vehicle body, and then the third sleeve 7 can be inserted into the fifth through hole 11 and the sixth through hole. The third sleeve 7 can be well positioned and connected between the longitudinal beam 1 and the vehicle body, with good stability. By inserting the third sleeve 7 through the third fixing bolt, the assembly difficulty when the third fixing bolt is directly inserted into the fifth through hole 11 and the sixth through hole can be reduced, and the assembly efficiency can be improved.

[0090] In addition, the third sleeve 7 can reduce the direct frictional contact between the third fixing bolt and the longitudinal beam 1 and the vehicle body. Specifically, during the assembly process, the third sleeve 7 can reduce the frictional damage to the longitudinal beam 1 and the vehicle body when the third fixing bolt is tightened. During vehicle operation, the third sleeve 7 can also reduce the frictional damage between the third fixing bolt and the longitudinal beam 1 and the vehicle body caused by vibration. Furthermore, the pump body 21 will have a certain vibration during operation. By using the third sleeve 7 in conjunction with the third fixing bolt, the vibration of the pump body 21 can be effectively reduced from being transmitted to the vehicle body through the longitudinal beam 1, which helps to improve the NVH performance of the entire vehicle.

[0091] For example, the number of fifth through holes 11 can be one, two or more. Similarly, there is a corresponding relationship between the fifth through hole 11 and the sixth through hole. The number of sixth through holes is not described here.

[0092] In the above-mentioned technical method, the third sleeve 7 is connected between the longitudinal beam 1 and the vehicle body with the third fixing bolt. This not only reduces the assembly difficulty between the longitudinal beam 1 and the vehicle body, but also reduces the transmission of vibration between the longitudinal beam 1 and the vehicle body, thereby improving the NVH performance of the whole vehicle.

[0093] The subframe 100 and other components and operations of the vehicle according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0094] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A subframe, characterized in that, include: There are two longitudinal beams (1), which are spaced apart in the left and right directions. The first crossbeam (2) includes a pump body (21) connected between the two longitudinal beams (1).

2. The subframe according to claim 1, characterized in that, Also includes: The first connecting bracket (4) and the first fixing bolt; One end of the first connecting bracket (4) is connected to the longitudinal beam (1), and the other end of the first connecting bracket (4) is provided with a first through hole (5). The pump body (21) is provided with a second through hole corresponding to the first through hole (5). The first fixing bolt is sequentially inserted into the first through hole (5) and the second through hole to connect the pump body (21) and the first connecting bracket (4).

3. The subframe according to claim 2, characterized in that, The first connecting bracket (4) includes a first bracket plate (41) and a second bracket plate (42). Along the vertical direction, the first bracket plate (41) and the second bracket plate (42) are located on both sides of the pump body (21).

4. The subframe according to claim 1, characterized in that, Also includes: Second connecting bracket (6), sleeve and second fixing bolt; One end of the second connecting bracket (6) is connected to the pump body (21), and the other end of the second connecting bracket (6) is provided with a third through hole (61). The longitudinal beam (1) is provided with a fourth through hole opposite to the third through hole (61). The sleeve passes through the third through hole (61) and the fourth through hole in sequence. The second fixing bolt passes through the sleeve to connect the longitudinal beam (1) and the second connecting bracket (6).

5. The subframe according to claim 4, characterized in that, The second connecting bracket (6) includes a third bracket plate (62) and a fourth bracket plate, which are located on the upper and lower sides of the longitudinal beam (1) respectively along the vertical direction.

6. The subframe according to claim 1, characterized in that, The pump body (21) has a first connecting part and a second connecting part, the first connecting part and the second connecting part are respectively connected to the two longitudinal beams (1), and the pump body (21) is provided with reinforcing ribs, which extend from the first connecting part to the second connecting part.

7. The subframe according to claim 1, characterized in that, The pump body (21) is made of cast aluminum.

8. A vehicle, characterized in that, include: The active suspension and the subframe according to any one of claims 1-7, wherein the pump body (21) is in communication with the active suspension.

9. The vehicle according to claim 8, characterized in that, The subframe is a front subframe, the first crossbeam (2) is a rear crossbeam, and the vehicle also includes a body, which is connected to the rear end of the longitudinal beam (1).

10. The vehicle according to claim 9, characterized in that, The longitudinal beam (1) is provided with a fifth through hole (11), the vehicle body is provided with a sixth through hole opposite to the fifth through hole (11), and the vehicle also includes a third sleeve (7) and a third connecting bolt. The third sleeve (7) is sequentially inserted through the fifth through hole (11) and the sixth through hole, and the third connecting bolt is inserted through the third sleeve (7) to connect the vehicle body and the longitudinal beam (1).

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