CN114506392B

CN114506392B - Auxiliary frame structure and vehicle

Info

Publication number: CN114506392B
Application number: CN202210407829.8A
Authority: CN
Inventors: 辛鹏程; 周大永; 王月; 曹国洋; 唐莉
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-12
Anticipated expiration: 2042-04-19
Also published as: CN114506392A

Abstract

The invention discloses an auxiliary frame structure and a vehicle, wherein the auxiliary frame structure comprises a frame body, the frame body is provided with a front side and a rear side along the length direction of the vehicle, and the frame body is provided with a rear mounting point connected with a vehicle body; the bottom plate is arranged on one side, facing the ground, of the frame body, one end of the bottom plate is connected to the frame body, and the other end of the bottom plate extends in the direction far away from the front side and is connected with the vehicle body; be provided with induced deformation portion on the bottom plate, induced deformation portion extends along the width direction of vehicle, and the vehicle is when taking place frontal collision, the bottom plate is in induced deformation portion takes place deformation, makes the frame body has towards being close to the trend of the rear side direction motion of frame body, so that the back mounting point shear failure of frame body realizes the frame body is followed the automobile body drops. The invention provides an auxiliary frame structure and a vehicle, and solves the technical problem that the safety of drivers and passengers is easily threatened when the vehicle is collided in the conventional auxiliary frame.

Description

Auxiliary frame structure and vehicle

Technical Field

The invention relates to the technical field of auxiliary frames of electric automobiles, in particular to an auxiliary frame structure and a vehicle.

Background

The auxiliary frame can be regarded as a framework of a front axle and a rear axle and is an important component of an automobile chassis, and the auxiliary frame has the main functions of weakening the impact of road vibration on an automobile body, improving the connection rigidity of a suspension system and improving the comfort and the stability of the automobile in the driving process. In addition, the auxiliary frame can also reduce noise caused by vibration of an engine and a road surface, and the mute level in an automobile cabin is improved.

With the development of technology, the requirement on the safety performance of vehicles is higher and higher, and the front collision is a working condition with higher occurrence probability. In the event of a frontal collision, the design of the subframe structure has a greater impact on the collision result. At present, the auxiliary frame of a vehicle is usually formed by punching a plurality of high-strength steel plates with the thickness of about 2mm, the rigidity of a suspension of the whole vehicle can be improved, and the control performance is good. However, when the vehicle undergoes a frontal collision, the impact force is directly transmitted to the cab through the subframe, which threatens the safety of the driver and passengers, and the safety of the entire vehicle is poor.

Disclosure of Invention

The invention mainly aims to provide an auxiliary frame structure and a vehicle, and aims to solve the technical problem that the safety of drivers and passengers is easily threatened when the vehicle is collided in the conventional auxiliary frame.

In order to achieve the above object, an embodiment of the present invention provides a subframe structure, including:

the vehicle frame comprises a frame body, a front side and a rear side in the length direction of a vehicle, wherein the frame body is provided with a rear mounting point connected with a vehicle body; and

the bottom plate is arranged on one side, facing the ground, of the frame body, one end of the bottom plate is connected to the frame body, and the other end of the bottom plate extends in the direction far away from the front side and is connected with the vehicle body; the automobile frame is characterized in that an induced deformation part is arranged on the bottom plate, the induced deformation part extends along the width direction of the automobile, when the automobile collides frontally, the bottom plate deforms in the induced deformation part, so that the automobile frame body has a trend of moving towards the rear side direction of the automobile frame body, the rear mounting point of the automobile frame body is sheared to be invalid, and the automobile frame body is separated from the automobile body.

Optionally, in an embodiment of the present invention, the bottom plate includes:

the frame section is connected with the frame body;

the connecting section is connected to the frame section in a bending way; and

the automobile body section is connected in bending, and extends towards the direction of keeping away from the frame section, in order to form the stair structure the automobile body section with between the frame section, the stair structure constitutes induced deformation portion.

Optionally, in an embodiment of the present invention, the bottom plate further includes a reinforcing rib, the reinforcing rib extends along a length direction of the vehicle, and at least one of the frame section, the connecting section, and the body section is provided with the reinforcing rib; and/or the presence of a gas in the gas,

the bottom plate further comprises a flanging, and the flanging is arranged on the edges of the frame section, the connecting section and the vehicle body section.

Optionally, in an embodiment of the present invention, the reinforcing rib is provided with a plurality of reinforcing ribs, and at least one of the plurality of reinforcing ribs passes through the induced deformation portion.

Optionally, in an embodiment of the present invention, the frame body includes a cross beam and a longitudinal beam, the cross beam and the longitudinal beam enclose a frame with an open space, the frame section is connected to the cross beam and/or the longitudinal beam, and the floor further includes a reinforcing section connected to the frame section and located between two opposite cross beams.

Optionally, in an embodiment of the present invention, the subframe structure further includes a protection plate, the protection plate is disposed in the open space and corresponds to a battery pack of a vehicle, and the protection plate connects two opposite cross beams.

Optionally, in an embodiment of the present invention, the frame body is provided with a bottom plate at each end in a width direction of the vehicle, and the subframe structure further includes an anti-collision beam, which is disposed between the two bottom plates and protrudes in a direction away from the vehicle body.

Optionally, in an embodiment of the present invention, the subframe structure further includes a cleat structure, where the cleat structure includes:

the horn bracket is arranged on the front side of the frame body, one end of the horn bracket is connected with the frame body, and the other end of the horn bracket extends towards the direction close to the vehicle body; and

the connecting sleeve is arranged at one end, far away from the frame body, of the horn support and used for a bolt to penetrate and be connected with a vehicle body, a crack is arranged on the connecting sleeve and extends axially of the connecting sleeve and penetrates through the wall of the connecting sleeve, and when a vehicle collides, the crack deforms to enable the opening of the crack to be enlarged and enable the bolt to be separated from the opening, so that the frame body falls off.

Optionally, in an embodiment of the present invention, a notch is formed in the connecting sleeve, the notch is communicated with the crack, and the notch is formed at one end of the connecting sleeve, which is close to the frame body, where an opening area of the notch is larger than an opening area of the crack; and/or the presence of a gas in the gas,

the horn structure still includes auxiliary stand, auxiliary stand with horn leg joint, and locate horn leg orientation the one side of frame body rear side.

In order to achieve the above object, an embodiment of the present invention provides a vehicle including the subframe structure described above.

Compared with the prior art, in the technical scheme provided by the invention, the frame body forms an integral framework of the auxiliary frame structure, and is connected with the vehicle body through the bolts, so that the required strength can be provided for the auxiliary frame structure, the impact force generated in vehicle collision can be borne, and the deformation of the frame body is effectively avoided, so that the frame body is prevented from being bent and deformed to enter a driving cabin, a larger safety space is provided for drivers and passengers, and the protection of the drivers and passengers is facilitated. Moreover, when the vehicle collides, the collision force is transmitted backwards through the frame body, and the frame body is not easy to deform due to higher strength, so that the shearing effect of the frame body on the bolts at the rear mounting points can be improved, the frame body can fall off from the vehicle body, the frame body is further prevented from invading into a driving cabin, and the safety of drivers and passengers is more effectively protected. In order to further facilitate the falling of the frame body, a bottom plate is arranged on the ground side of the frame body, one end of the bottom plate is connected with the frame body, the other end of the bottom plate is connected with the vehicle body, the bottom plate can be made of medium-strength steel, and the strength of the bottom plate is weaker than that of the frame body; set up the induced deformation portion that extends along the width direction of vehicle simultaneously on the bottom plate, when the vehicle bumps, the impact force makes the bottom plate take place to bend and warp at induced deformation position, make the length of bottom plate on vehicle length direction shorten, order about the frame body towards the rear of a vehicle direction motion that is close to the vehicle, thereby produce the shearing force to the bolt in the back mounting point position of frame body, be favorable to cutting of bolt, and then make the back mounting point position of frame body invalid, realized dropping of frame body from the automobile body, avoid the frame body to invade and drive the storehouse and threaten driver and crew's safety, effectively protect driver and crew, improve the security of whole car.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a subframe structure according to the present invention;

FIG. 2 is a schematic exploded view of an embodiment of the subframe structure of the present invention;

FIG. 3 is a schematic structural view of the body portion of the frame of FIG. 2;

FIG. 4 is a schematic view of the construction of the base portion of FIG. 2;

FIG. 5 is a schematic structural view of the horn structure of FIG. 2;

fig. 6 is a partially enlarged structural view of a portion a in fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Vehicle frame body	110	Cross beam
120	Longitudinal beam	200	Base plate
				210	Frame section	220	Connecting segment
230	Vehicle body section	240	Reinforcing rib
				250	Flanging	260	Reinforcing segment
400	Anti-collision beam	500	Protective plate
				600	Sheep horn structure	610	Sheep horn support
620	Connecting sleeve	630	Crack (crack)
				640	Auxiliary support	650	Gap(s)
300	Induced deformation part

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort, belong to the protection scope of the embodiments of the present invention.

It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions such as references to "first", "second", and the like in the embodiments of the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, or detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In addition, technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope claimed by the embodiments of the present invention.

The electric automobile as a new energy automobile has the advantages of energy conservation and environmental protection, and particularly, the pure electric automobile is more and more a hot spot of research in the automobile field. The size proportion of the vehicle is developed towards the direction of short front overhang due to the factors of modeling and driver vision, so that the deformation space of a cabin is relatively small, the energy absorption space is relatively insufficient during frontal collision, and the collision safety performance of the vehicle is difficult to ensure.

The auxiliary frame is used as a supporting part of a front axle and a rear axle of an automobile, the auxiliary frame mainly has the functions of connecting a suspension, an automobile body and a power assembly, and the auxiliary frame plays an important role in the collision safety performance of the automobile. Considering the requirement of a vehicle on the control stability, the larger the rigidity of the suspension is, the better the rigidity is, therefore, the subframe of the automobile is usually formed by punching a plurality of high-strength steel plates with the thickness of about 2mm, and the whole vehicle suspension applying the subframe has high rigidity and good control performance. However, the auxiliary frame is made of high-strength steel, so that the deformation of the auxiliary frame is small when the vehicle is in a frontal collision, the auxiliary frame cannot play a role in buffering and absorbing energy, impact force can be directly transmitted to a cab through the auxiliary frame, the safety of a driver and passengers is threatened, and the safety of the whole vehicle is poor.

In view of this, the embodiment of the invention provides an auxiliary frame structure and a vehicle, which drive a vehicle frame body to move towards the tail direction of the vehicle by using the deformation of a bottom plate generated when the vehicle collides, so that the position of a rear mounting point of the vehicle frame body is disabled, the vehicle frame body falls off from a vehicle body, and the safety of drivers and passengers is further ensured.

In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, a subframe structure according to an embodiment of the present invention includes:

a frame body 100 having a front side and a rear side in a length direction of the vehicle, and the frame body 100 being provided with a rear mounting point to be connected with a vehicle body; and

the bottom plate 200 is arranged on one side of the frame body 100 facing the ground, one end of the bottom plate 200 is connected to the frame body 100, and the other end of the bottom plate extends in the direction far away from the front side and is connected with the vehicle body; the bottom plate 200 is provided with an induced deformation part 300, the induced deformation part 300 extends along the width direction of the vehicle, when the vehicle collides in front, the bottom plate 200 deforms in the induced deformation part 300, so that the frame body 100 has a tendency of moving towards the rear side direction close to the frame body 100, the rear mounting point of the frame body 100 is shear-failed, and the frame body 100 falls off from the vehicle body.

In the technical scheme that this embodiment adopted, frame body 100 constitutes sub vehicle frame structure's whole skeleton, through bolt and body connection, can provide required intensity for sub vehicle frame structure, can bear the impact force that produces when the vehicle collision, effectively avoids frame body 100 to warp to prevent frame body 100 from buckling deformation and getting into the cabin of riding, provide great safety space for the driver and passenger, be favorable to protecting the driver and passenger. Moreover, when the vehicle collides, the collision force is transmitted backwards through the frame body 100, and the frame body 100 has high strength and is not easy to deform, so that the shearing action of the frame body 100 on the bolts at the rear mounting points can be improved, the frame body 100 is favorable for falling off from the vehicle body, the frame body 100 is further prevented from invading a driving cabin, and the safety of drivers and passengers is more effectively protected. In order to further facilitate the falling of the frame body 100, a bottom plate 200 is provided, the bottom plate 200 is arranged on the ground side of the frame body 100, one end of the bottom plate 200 is connected with the frame body 100, the other end of the bottom plate 200 is connected with the vehicle body, the bottom plate 200 can be made of medium-strength steel, and the strength of the bottom plate is weaker than that of the frame body 100; meanwhile, the induction deformation part 300 extending along the width direction of the vehicle is arranged on the bottom plate 200, when the vehicle collides, the impact force causes the bottom plate 200 to bend and deform at the position of the induction deformation part 300, the length of the bottom plate 200 in the length direction of the vehicle is shortened, the frame body 100 is driven to move towards the direction close to the tail of the vehicle, so that a shearing force is generated on a bolt at the rear mounting point position of the frame body 100, the shearing of the bolt is facilitated, the rear mounting point position of the frame body 100 is made invalid, the frame body 100 is prevented from falling off from the vehicle body, the situation that the frame body 100 invades into a driving cabin to threaten the safety of drivers and passengers is avoided, the drivers and passengers are effectively protected, and the safety of the whole vehicle is improved.

Specifically, the subframe structure includes a frame body 100 and a base plate 200. Frame body 100 may be made of alloy steel, such as SAPH400, SAPH440, S420MC, so that frame body 100 has high strength and is not easily deformed, and sufficient connection rigidity can be provided for a suspension system. The shape of the frame body 100 can be a Chinese character 'ri' shape or a Chinese character 'kou' shape, so that the overall weight can be reduced on the basis of ensuring the strength of the frame body 100, the load of a vehicle engine system can be reduced, and the driving mileage of a vehicle can be increased. Of course, in other embodiments, the frame body 100 may also be square or other irregular shapes, and is not limited herein. In order to facilitate the connection between the subframe and the vehicle body, a rear mounting point is arranged on the frame body 100, and the connection with the vehicle body is realized through a bolt at the rear mounting point. Connect frame body 100 and automobile body through the mode of spiro union, can improve the convenience of installation, can also be favorable to the inefficacy of back mounting point position. The rear mounting point is disposed at one end of the frame body 100 close to the rear side, the rear mounting points may be disposed in a plurality, and the plurality of rear mounting points may be disposed in the width direction of the vehicle. Preferably, the rear mounting point can be a round hole or a threaded hole. In addition, a front mounting point may be provided at an end of the frame body 100 near the front side, which is not limited herein. It should be noted that the front side of the frame body 100 refers to a side of the frame body 100 facing the vehicle front direction of the vehicle, and the rear side of the frame body 100 refers to a side of the frame body 100 facing the vehicle rear direction of the vehicle.

The bottom plate 200 is disposed on a side of the frame body 100 facing away from the vehicle body, that is, a side of the frame body 100 facing the ground. The base plate 200 may be made of alloy steel, such as SAPH400, SAPH440, S420MC, which may deform when subjected to an impact force. One end of the base plate 200 is connected to the frame body 100 by screwing or welding. Preferably, the through hole is formed in the position, corresponding to the rear mounting point of the frame body 100, of the bottom plate 200, so that the bottom plate 200, the frame body 100 and the bottom plate 200 can be fixedly connected through one bolt, the use of parts can be reduced, the mounting process is simplified, and the mounting convenience is improved. Of course, one end of the bottom plate 200 may be directly welded and fixed to the frame body 100, which is not limited herein. The other end of the bottom plate 200 extends away from the frame body 100, and it is understood that the other end of the bottom plate 200 extends toward the rear of the vehicle. The other end of the base plate 200 is connected to the vehicle body, and a mounting hole may be provided in the base plate 200, through which a bolt passes to be connected to the vehicle body. Furthermore, the induced deformation portion 300 is disposed at one end of the bottom plate 200 far from the frame body 100, the induced deformation portion 300 extends along the width direction of the vehicle, when the vehicle collides, the bottom plate 200 is bent and deformed at the position of the induced deformation portion 300 due to the impact force, so that the length of the bottom plate 200 in the length direction of the vehicle is shortened, an acting force is applied to the frame body 100, the frame body 100 is driven to move towards the rear direction close to the vehicle, a larger shearing force is applied to the bolts at the rear mounting point position on the frame body 100, the bolts at the rear mounting point position are easier to shear when the vehicle collides, the frame body 100 can fall off from the vehicle body, the safety of drivers and passengers is prevented from being threatened by the frame body 100, and the overall safety performance of the vehicle is improved. Moreover, when the bottom plate 200 is bent and deformed, the frame body 100 can be driven to move towards the direction close to the ground, so that the frame body 100 can be further conveniently separated from the vehicle body. It should be noted that the deformation inducing portion 300 in this embodiment may be any one of a groove, a dent, and a bend, so as to provide a guiding function for the deformation of the bottom plate 200, that is, the bottom plate 200 is bent and deformed along the deformation inducing portion 300, that is, the bottom plate 200 can be bent and deformed at a predetermined position by the design of the deformation inducing portion 300, so as to drive the frame body 100 to move toward the rear direction of the vehicle, thereby shearing the bolt connecting the frame body 100 and the rear mounting point of the vehicle body, and facilitating the frame body 100 to fall off from the vehicle body. In addition, two bottom plates 200 may be provided, and it can be understood that one bottom plate 200 is provided at each of both end portions of the frame body 100 in the width direction of the vehicle, thereby improving the uniformity of the force applied to the frame body 100.

It should be particularly noted that, in order to avoid the deformation of the frame body 100 and ensure the deformation of the bottom plate 200 when the vehicle collides, the frame body 100 may be made of high-strength steel, and the bottom plate 200 may be made of medium-low strength steel, that is, the strength of the material used for the frame body 100 is greater than that of the material used for the bottom plate 200; the thickness of the frame body 100 can be greater than the thickness of the bottom plate 200, for example, the thickness of the frame body 100 can be 2.5 to 5 mm, and the thickness of the bottom plate 200 can be 1 to 2 mm.

Further, referring to fig. 4, in an embodiment of the present invention, the base plate 200 includes:

a frame section 210 connected to the frame body 100;

a connecting section 220, which is connected to the frame section 210 in a bending manner; and

the body section 230 is connected to the connecting section 220 in a bent manner and extends in a direction away from the frame section 210, so that a step structure is formed between the body section 230 and the frame section 210, and the step structure forms the induced deformation portion 300.

In the technical solution adopted in this embodiment, the base plate 200 includes a frame section 210, a connecting section 220, and a body section 230. The frame section 210 is used for being connected with the frame body 100, through holes can be formed in the positions, corresponding to the rear mounting points of the frame body 100, of the frame section 210, and the frame section 210, the frame body 100 and the vehicle body are connected through the same bolt, so that the mounting process can be simplified, and the mounting efficiency can be improved. The connection section 220 is bent and disposed at one end of the frame section 210 far away from the frame body 100, one end of the connection section 220 can be connected to the frame body 100, and the other end can extend toward a direction close to or far away from the ground, in this embodiment, the other end of the connection section 220 extends toward a direction far away from the bottom surface. The body section 230 is connected to one end of the connecting section 220 far away from the frame section 210 in a bent manner, one end of the body section 230 is connected with the connecting section 220, the other end of the body section 230 is connected with the body, a mounting hole can be formed in the body section 230, and the connection between the body section 230 and the body can be realized through a bolt. In the present embodiment, the body section 230 extends toward the rear of the vehicle, and a predetermined interval exists between the body section 230 and the frame section 210 in the vertical direction by the arrangement of the connection section 220, and it can be understood that a step structure is formed between the body section 230 and the frame section 210, that is, the induced deformation portion 300 is formed. That is to say, through the arrangement of the connection section 220, the vehicle body section 230 and the frame section 210 are arranged in a staggered manner, and the connection between the connection section 220 and the vehicle body section 230 and the connection between the connection section 220 and the frame section 210 extend along the width direction of the vehicle, so that the bending deformation of the bottom plate 200 between the vehicle body section 230 and the frame section 210 is facilitated, and it can be understood that the bending deformation occurs at the connection between the connection section 220 and the vehicle body section 230 and at the connection between the connection section 220 and the frame section 210, so that the vehicle body section 230 and the frame section 210 move towards directions close to each other, the length of the whole bottom plate 200 extending along the length direction of the vehicle is reduced, and thus the frame body 100 is driven to move towards the rear direction of the vehicle to shear the bolt at the rear mounting point, and further facilitate the falling of the frame body 100 from the vehicle body. In this example, body section 230, frame section 210 and linkage segment 220 can be integrated into one piece, so can improve bottom plate 200 overall structure's intensity, avoid unexpected deformation or fracture when the vehicle does not collide to the normal use of guarantee sub vehicle frame structure. Of course, the body section 230, the frame section 210 and the connecting section 220 can also be connected into a whole by welding. In practical application, the selection can be preferred. Additionally, the frame section 210 and the body section 230 may be arranged in parallel for ease of installation. It should be noted that the bending angle of the connecting section 220 relative to the frame section 210 and the bending angle of the body section 230 relative to the connecting section 220 are between 0 and 20 degrees, respectively. Meanwhile, in order to avoid the fracture of the connection section 220 at the connection with the body section 230 or the frame section 210, the connection section 220 may be in arc transition with the body section 230, and the connection section 220 may be in arc transition with the frame section 210.

Further, referring to fig. 4, in an embodiment of the present invention, the base plate 200 further includes a reinforcing rib 240, the reinforcing rib 240 extends along a length direction of the vehicle, and at least one of the frame section 210, the connecting section 220, and the body section 230 is provided with the reinforcing rib 240; and/or the presence of a gas in the gas,

the floor panel 200 further includes a flange 250, the flange 250 being disposed at the edges of the frame section 210, the connecting section 220, and the body section 230.

In the technical solution adopted in this embodiment, in order to improve the strength of the bottom plate 200, a reinforcing rib 240 is provided, and the reinforcing rib 240 may extend along the length direction of the vehicle, so as to provide a supporting function for the bottom plate 200 at the initial stage of a vehicle collision or in the event of a light collision. Of course, the reinforcing ribs 240 can also prevent the bottom plate 200 from being bent and deformed accidentally when the vehicle is not collided, and further guarantee the normal use of the bottom plate 200 when the vehicle is not collided. In a specific application, the reinforcing rib 240 may be disposed on the frame section 210, the connecting section 220, the body section 230, or both the frame section 210, the connecting section 220, and the body section 230, which is not limited herein. In addition, a flange 250 can be further provided, and the flange 250 is arranged on the edges of the frame section 210, the connecting section 220 and the body section 230, so that the strength of the bottom plate 200 can be further improved through the flange 250. Preferably, the flange 250 may be bent toward the direction close to the ground, so as to avoid the frame body 100, so that the frame section 210 of the base plate 200 may be attached to the ground side of the frame body 100, thereby increasing the contact area between the frame section 210 and the frame body 100, and improving the firmness of the fixation between the frame section 210 of the base plate 200 and the frame body 100.

Further, in an embodiment of the present invention, the plurality of reinforcing ribs 240 are provided, and at least one of the plurality of reinforcing ribs 240 passes through the induced deformation portion 300.

In the technical solution adopted in this embodiment, in order to further improve the strength of the bottom plate 200, the plurality of reinforcing ribs 240 may be provided, and the plurality of reinforcing ribs 240 may be provided at intervals along the length direction of the vehicle, may also be provided at intervals along the length direction of the vehicle, and may also be provided at intervals in both the length direction and the width direction of the vehicle, which is not limited herein. It should be noted that at least one reinforcing rib 240 may pass through the induced deformation portion 300, and it is understood that the reinforcing rib 240 connects the frame section 210, the connection section 220 and the body section 230, so as to improve the connection firmness between the frame section 210 and the body section 230 and prevent the bottom plate 200 from bending and deforming between the frame section 210 and the body section 230 when the vehicle is not in collision.

Further, referring to fig. 3 and 4, in an embodiment of the present invention, the frame body 100 includes a cross beam 110 and a longitudinal beam 120, the cross beam 110 and the longitudinal beam 120 enclose a frame with an open space, the frame section 210 is connected with the cross beam 110 and/or the longitudinal beam 120, and the floor panel 200 further includes a reinforcing section 260, and the reinforcing section 260 is connected with the frame section 210 and is located between two opposite cross beams 110.

In the technical scheme adopted in this embodiment, the frame body 100 includes a cross beam 110 and a longitudinal beam 120 that are connected end to end, the cross beam 110 and the longitudinal beam 120 may be respectively provided in two numbers, the two cross beams 110 are oppositely provided, and the two longitudinal beams 120 are oppositely provided, so that a frame is formed by connecting the cross beam 110 and the longitudinal beam 120 end to end. The strength of the frame body 100 can be guaranteed through the cross beam 110 and the longitudinal beam 120, and the use of materials can be reduced due to the open space of the frame, so that the weight of the frame body 100 is reduced, and the driving mileage of the vehicle is improved. To further reduce the weight of the frame body 100, the cross member 110 and the side members 120 may be hollow structures. Specifically, the cross member 110 may include an upper plate and a lower plate fastened together, and a cavity structure is formed between the upper plate and the lower plate after the upper plate and the lower plate are fastened together, so that the overall weight of the frame body 100 may be reduced by using the formed cavity structure. Preferably, the upper plate and the lower plate can be welded and fixed, so that the firmness of connection can be improved. Of course, the longitudinal beam 120 may be a structure in which an upper plate and a lower plate are fastened to form a cavity, and is not limited herein. In the present embodiment, the cross beam 110 and the side beam 120 may also be welded, preferably two welding, so as to ensure the stability of the frame body 100. In addition, in order to further improve the strength of the frame body 100, the base plate 200 may further include a reinforcement section 260. The reinforcing section 260 is connected with the frame section 210, the reinforcing section 260 can be fixed with the frame section 210 in a welding mode, and the reinforcing section 260 is located between the two opposite cross beams 110, so that supporting force can be provided for the cross beams 110, deformation of the cross beams 110 in the direction close to the open space is avoided, and strength of the frame body 100 is improved. In order to further reduce the overall weight of the frame body 100, lightening holes may be provided in the reinforcement segment 260, and the weight of the reinforcement segment 260 may be reduced by the lightening holes, thereby reducing the weight of the frame body 100. The frame section 210 may be connected to the cross member 110 or to the side member 120. Preferably, the frame section 210 is connected to both the cross member 110 and the side member 120, so that the contact area between the frame section 210 and the frame body 100 can be increased, and the reliability of the fixing can be improved. In this embodiment, the frame section 210 may be fixedly connected to the cross beam 110 and/or the longitudinal beam 120 by welding.

Further, referring to fig. 1 and 2, in an embodiment of the present invention, the subframe structure further includes a protection plate 500, the protection plate 500 is disposed in the open space and corresponds to a position of a battery pack of the vehicle, and the protection plate 500 connects the two opposite cross members 110.

In the technical scheme adopted by the embodiment, the battery pack can provide enough power for the running of the vehicle for a new energy automobile, particularly an electric automobile. Generally, the battery pack is arranged at the bottom of the vehicle body, and splashed particles or accumulated water on the road surface can be frequently encountered when the vehicle normally runs, so that the battery pack and a high-voltage wiring harness connected with the battery pack are adversely affected. Therefore, the protection plate 500 is arranged in the embodiment, and two ends of the protection plate 500 can be welded and fixed with the cross beam 110, so that on one hand, impact and corrosion of particles and accumulated water on a high-voltage wire harness and/or a battery pack can be reduced or reduced, and the safety risk of a vehicle is reduced; on the other hand, the cross beam 110 can be supported, and the strength of the frame body 100 is further improved. In other embodiments, the protection plate 500 may be recessed toward the ground to form a groove, so as to be away from the battery pack or the high voltage harness, thereby preventing the battery pack or the high voltage harness from being scratched or worn.

Further, referring to fig. 2, in an embodiment of the present invention, the frame body 100 is respectively provided with a bottom plate 200 at an end portion in the width direction of the vehicle, and the subframe structure further includes an anti-collision beam 400, and the anti-collision beam 400 is disposed between the two bottom plates 200 and protrudes in a direction away from the vehicle body.

In the technical scheme adopted by the embodiment, the battery pack is usually arranged at the bottom of the vehicle body, so that once bottom scraping or collision accidents occur, the performance of the battery pack is influenced to a certain extent, and potential risks exist in safe running of the vehicle. Therefore, in the embodiment, the anti-collision beam 400 is arranged, and the anti-collision beam 400 is connected with the two bottom plates 200 and can be attached to one side of the longitudinal beam 120 facing the ground, so that the strength of the frame body 100 can be improved on one hand; on the other hand, when a vehicle passes through a barrier with a protrusion on the road surface or the road surface is uneven or the vehicle goes up and down steps, the anti-collision beam 400 firstly generates contact impact due to the protrusion towards the ground, and the anti-collision beam 400 has a strong structure, so that the vehicle has a jumping movement trend after impact, the distance between the battery pack and the ground or the barrier is increased, the battery pack is prevented from being collided with the ground or the barrier, and the normal use of the battery pack is ensured. Preferably, the impact beam 400 may be made of high-strength steel.

Further, referring to fig. 1, fig. 2, fig. 5 and fig. 6, in an embodiment of the present invention, the subframe structure further includes a cleat structure 600, and the cleat structure 600 includes:

the horn bracket 610 is arranged on the front side of the frame body 100, one end of the horn bracket 610 is connected with the frame body 100, and the other end extends towards the direction close to the vehicle body; and

the connecting sleeve 620 is arranged at one end, far away from the frame body 100, of the horn support 610, the connecting sleeve 620 is used for allowing the bolt to penetrate and be connected with a vehicle body, the connecting sleeve 620 is provided with a crack 630, the crack 630 extends along the axial direction of the connecting sleeve 620 and penetrates through the cavity wall of the connecting sleeve 620, and when a vehicle collides, the crack 630 deforms, so that the opening of the crack 630 is enlarged, the bolt is separated from the opening, and the frame body 100 is separated.

In the technical scheme adopted by the embodiment, the horn structure 600 is arranged for facilitating the connection between the frame body 100 and the vehicle body. Preferably, two horn structures 600 are symmetrically disposed, and the two horn structures 600 are disposed at the front side of the frame body 100. It can be understood that, the two ends of the frame body 100 along the width direction of the vehicle are respectively provided with a goat's horn structure 600, so that the stress uniformity of the sub-frame structure can be improved. It should be noted that the two cleat structures 600 have the same structure, and only one cleat structure 600 is described in this embodiment.

The cleat structure 600 includes a cleat support 610 and a connection sleeve 620. The cavel support 610 may be made of a rolled plate body made of steel plate, aluminum alloy, or the like, and a seam is formed at the rolled edge of the plate body and welded and fixed by a weld seam, thereby forming a hollow tubular structure. Therefore, the weight of the horn support 610 can be reduced, the light weight is realized, and the fuel economy is improved. Of course, in other embodiments, the cleat support 610 may also be a solid cylinder structure, which is not limited herein. The cleat bracket 610 may include a connection part for connecting with the frame body and a bending part having one end connected with the connection part and the other end bent toward the outside of the frame body 100. The frame body 100 can be conveniently connected with the vehicle body through the connecting part and the bending part, and sufficient supporting strength can be provided. The connecting sleeve 620 is arranged at one end of the bending part far away from the connecting part, and can be fixed on the outer wall of the bending part through welding, so that the fixing firmness of the connecting sleeve 620 can be improved. The connection sleeve 620 may be vertically disposed, a cavity is formed inside the connection sleeve 620 and is opened up and down, the connection sleeve 620 is connected with the vehicle body through a bolt, and one end of the bolt passes through the cavity inside the connection sleeve 620 to be connected with the vehicle body and is locked and fixed by a nut. It will be appreciated that the bolt includes a shank portion which passes through the internal cavity of the coupling sleeve 620 from below to above, and a head portion which is located below the coupling sleeve 620. In order to facilitate the detachment of the bolt from the coupling sleeve 620 in the event of a vehicle collision, a slit 630 is provided in the coupling sleeve 620, the slit 630 extending in the axial direction of the coupling sleeve 620. When the vehicle is not collided, the opening of the crack 630 per se is small, so that the rod part of the bolt can be effectively coated, and the stability of the connection between the connecting sleeve 620 and the vehicle body through the bolt is improved. When the vehicle bumps, frame body 100 also can order about connecting sleeve 620 to the rear of a vehicle direction when moving towards the rear of a vehicle direction of vehicle, the collision impact force that connecting sleeve 620 received in addition, crack 630 on connecting sleeve 620 can take place deformation, crack 630's opening can grow gradually promptly, enable the bolt to deviate from until the open-ended area, realize breaking away from of bolt and connecting sleeve 620, frame body 100 also drops from the automobile body, avoid causing the threat to driver and crew, improve the whole security of vehicle. It should be noted that, in this embodiment, the slit 630 penetrates through the cavity wall of the connection sleeve 620, which means that the slit 630 extends from the outer wall of the connection sleeve 620 to the inner wall of the connection sleeve 620, that is, the slit 630 is communicated with the inner cavity of the connection sleeve 620, so that the slit 630 is deformed by an impact force when a vehicle collides, an opening of the slit 630 is enlarged, and the bolt is detached from the opening of the slit 630.

Further, referring to fig. 5 and 6, in an embodiment of the present invention, a notch 650 is disposed on the connection sleeve 620, the notch 650 is communicated with the slit 630, the notch 650 is disposed at an end of the connection sleeve 620 close to the frame body 100, wherein an opening area of the notch 650 is larger than an opening area of the slit 630; and/or the presence of a gas in the gas,

the cleat structure 600 further includes an auxiliary bracket 640, wherein the auxiliary bracket 640 is connected to the cleat bracket 610 and is disposed on a side of the cleat bracket 610 facing the rear side of the frame body 100.

In the solution adopted in this embodiment, in order to further facilitate the deformation of the slit 630 when receiving an impact force, a notch 650 is provided on the connection sleeve 620. Notch 650 sets up the one end towards frame body 100 at crack 630, and communicate with crack 630, so when the vehicle bumps, because of the open area of notch 650 is greater than crack 630's open area, can guide crack 630's deformation, that is to say, crack 630 is when deformation, crack 630's opening is from being close to the one end of notch 650 towards the one end that keeps away from notch 650 gradually becoming big, it more is favorable to crack 630 to take place deformation when the atress to set up like this, thereby make things convenient for breaking away from of bolt and connecting sleeve 620, realize frame body 100's the coming off. It should be noted that the opening area of the notch 650 is larger than the opening area of the slit 630 in this embodiment, which refers to the size between the initial opening areas of the notch 650 and the slit 630.

In addition, in order to further improve the strength of the cavel support 610, an auxiliary support 640 may be further provided, and the auxiliary support 640 is disposed at a side of the cavel support 610 facing the rear direction of the vehicle, so that the cavel support 610 may be supported, and the strength of the cavel support 610 may be improved. Preferably, the auxiliary bracket 640 may be fixedly connected to the cavel bracket 610 by welding. The shape of the auxiliary support 640 is not limited, and only needs to be matched with the cavel support 610.

The embodiment of the present invention further provides a vehicle, which includes the above subframe structure, and the vehicle includes the above subframe structure, and specifically, the specific structure of the subframe structure refers to the above embodiment, and since the vehicle adopts all the technical solutions of the above embodiment, the vehicle at least has all the beneficial effects brought by the technical solutions of the above embodiment, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments of the present invention, and all modifications and equivalents that can be made by using the contents of the description and drawings of the embodiments of the present invention or directly/indirectly applied to other related technical fields are included in the scope of the embodiments of the present invention.

Claims

1. A subframe structure, characterized in that the subframe structure comprises:

the bottom plate is arranged on one side, facing the ground, of the frame body, one end of the bottom plate is connected to the frame body, and the other end of the bottom plate extends in the direction far away from the front side and is connected with the vehicle body; the automobile frame is characterized in that an induced deformation part is arranged on the bottom plate, the induced deformation part extends along the width direction of the automobile, when the automobile collides frontally, the bottom plate deforms in the induced deformation part, so that the automobile frame body has a trend of moving towards the rear side direction of the automobile frame body, the rear mounting point of the automobile frame body is sheared to be invalid, the automobile frame body is separated from the automobile body, and the strength of the bottom plate is weaker than that of the automobile frame body.

2. The subframe structure of claim 1 wherein said floor plate comprises:

the frame section is connected with the frame body;

the connecting section is connected to the frame section in a bending way; and

the automobile body section, bend connect in the linkage segment, and towards keeping away from the direction of automobile frame section extends, with the automobile body section with form the stair structure between the automobile frame section, the stair structure constitutes induced deformation portion.

3. The subframe structure of claim 2 wherein said floor further comprises a reinforcement extending along the length of the vehicle, at least one of said frame section, said connector section and said body section being provided with said reinforcement; and/or the presence of a gas in the atmosphere,

4. The subframe structure of claim 3 wherein said reinforcing beads are provided in a plurality, and at least one of said plurality of reinforcing beads passes through said deformation-inducing portion.

5. The subframe structure of claim 2 wherein said body frame includes cross members and longitudinal members, said cross members and said longitudinal members defining a frame having an open space, said frame sections being connected to said cross members and/or longitudinal members, said floor further including reinforcing sections connected to said frame sections and located between opposing cross members.

6. The subframe structure of claim 5 further comprising a guard plate disposed in said open space and corresponding to a battery pack location of the vehicle, said guard plate connecting two opposing cross members.

7. The subframe structure according to claim 5 wherein said frame body is provided with said bottom plates at respective ends in the width direction of the vehicle, and further comprising an impact beam provided between said bottom plates and projecting in a direction away from the vehicle body.

8. The subframe structure of claim 1 wherein said subframe structure further comprises a goat's horn structure, said goat's horn structure comprising:

9. The subframe structure according to claim 8 wherein said adapter sleeve is provided with a notch, said notch communicating with said slot, said notch being provided at an end of said adapter sleeve adjacent to said frame body, wherein an opening area of said notch is larger than an opening area of said slot; and/or the presence of a gas in the gas,

10. A vehicle characterized in that the vehicle includes the subframe structure according to any one of claims 1 to 9.