WO2024243789A1 - Auxiliary frame of vehicle and vehicle - Google Patents

Abstract

An auxiliary frame of a vehicle, said frame comprising a frame body (10), supports (20) and connecting members (30); each support (20) comprises a first end (21) and a second end (22) opposite one another; the first end (21) is connected to the frame body (10), and a connecting member (30) is connected to the second end (22); each connecting member (30) is provided with a connecting hole (31); the connecting hole (31) penetrates through the connecting member (30) in a first direction (X), and the connecting hole (31) extends to an edge (32) of the connecting member (30) in a second direction (Y) to form an opening (33), the first direction (X) being perpendicular to the second direction (Y). Further disclosed is a vehicle comprising the described auxiliary frame of a vehicle. Each connecting hole (31) extends to an edge (32) of a connecting member (30) in the second direction (Y) to form an opening (33), enabling a force-bearing weak point to be provided on the connecting hole (31). When the auxiliary frame bears a large external force, the connecting holes (31) are easily deformed, so that a mounting member in each connecting hole (31) is separated from the connecting member (30), thereby achieving the separation of the auxiliary frame from the vehicle body, enabling the auxiliary frame to normally provide a collision energy absorption space for the vehicle, and improving the use reliability of the vehicle.

Description

Subframe of vehicle and vehicle Technical Field

The present application belongs to the field of vehicle technology, and in particular relates to a vehicle subframe and a vehicle.

Background Art

With the development of technology, the use of automobiles has become increasingly popular, so ensuring the reliability of automobiles is a key research focus in the automotive field. As an important part of the automobile suspension system, the subframe can provide the main support structure for the suspension system, such as the installation points of control arms, stabilizer bars, steering gears and other parts. How to improve the structure of the subframe and improve the reliability of the automobile is an important research direction in the field of vehicle technology.

Summary of the invention

The embodiments of the present application provide a subframe of a vehicle and a vehicle, which facilitates the release of collision energy absorption space at the subframe.

In a first aspect of the embodiments of the present application, a subframe of a vehicle is provided, comprising a frame body, a bracket and a connector. The bracket comprises a first end and a second end opposite to each other, the first end being used to connect to the frame body. The connector is connected to the second end, the connector is provided with a connecting hole, the connecting hole passes through the connector along a first direction, and the connecting hole extends to an edge of the connector along a second direction and forms an opening, the first direction is parallel to the height direction of the bracket, and the first direction is perpendicular to the second direction.

By adopting the above structure, by extending the connecting hole to the edge of the connecting piece along the second direction and forming an opening, the connecting hole can have a load-bearing weak point. When the sub-frame is subjected to a large external force, the connecting hole is easy to deform, so that the mounting piece in the connecting hole is separated from the connecting piece, thereby realizing the separation of the sub-frame and the vehicle body, so that the sub-frame can normally provide collision energy absorption space for the vehicle, thereby improving the reliability of the vehicle.

In some optional embodiments of the present application, the frame body includes two longitudinal beams and two cross beams, the two longitudinal beams are arranged at intervals along the second direction, the two cross beams are arranged at intervals along the third direction, the two cross beams are located between the two longitudinal beams and are respectively connected to the two longitudinal beams, the third direction is perpendicular to the first direction and the second direction, and the first end is connected to the upper surface of the longitudinal beam along the first direction.

By adopting the above structure, firstly, by setting two longitudinal beams and two transverse beams, a stable frame structure can be provided for the frame body, which is convenient for setting the installation points of the suspension system on the frame body. Secondly, by connecting the first end to the upper surface of the longitudinal beam along the first direction, the frame body can be conveniently connected to the longitudinal beam of the vehicle body through the bracket.

In some optional embodiments of the present application, a groove is provided on the upper surface of the longitudinal beam along the first direction, the groove is recessed toward the side away from the bracket in the first direction, and the groove is provided on one side of the first end in the third direction.

By adopting the above structure, by setting the groove on the longitudinal beam, the longitudinal beam can have a weak point in the frame. When the main body is subjected to a large external force in the third direction, the longitudinal beam is easy to collapse from the groove, providing collision energy absorption space for the vehicle, and at the same time, the bending direction of the longitudinal beam is toward the side away from the connecting part when collapsing, reducing the impact of the collapse of the longitudinal beam on the internal structure of the vehicle body.

In some optional embodiments of the present application, the connecting hole includes a main body portion and a connecting portion, the connecting portion is arranged on one side of the main body portion in the second direction, and the connecting portion connects the main body portion and the outside of the connecting piece in the second direction to form an opening.

By adopting the above structure, by providing the main body and the connecting part, the connecting hole can have two relatively independent parts, wherein the main body meets the need of inserting the mounting piece in the connecting hole, and the connecting part meets the need of forming an opening on the connecting hole.

In some optional embodiments of the present application, in a plane perpendicular to the first direction, the projection of the connecting portion is inclined toward a side away from the projection of the groove.

With the above structure, since the groove is arranged on one side of the bracket in the third direction, when the longitudinal beam collapses, the external force on the bracket is the force toward the groove, and according to the interaction relationship of the forces, when the connecting hole abuts against the mounting part penetrated therein, the external force is the force away from the groove. At this time, the connecting part is tilted toward the side away from the groove, so that the extension direction of the connecting part can be the same as the force direction during actual action, which facilitates the separation of the mounting part and the connecting part in the connecting hole.

In some optional embodiments of the present application, the connecting member includes a first wall and a second wall arranged in parallel, a connecting portion is formed between the first wall and the second wall, the first wall is parallel to the first direction, and the first wall intersects with the second direction.

With the above structure, by forming the connecting part between the first wall and the second wall arranged in parallel, the connecting part can be made straight, which facilitates the connecting part to be opened under load and the installation part in the connecting hole to be separated from the connecting part.

In some optional embodiments of the present application, the angle between the first wall surface and the second direction is α, satisfying 0＜α≤45°.

By adopting the above structure, by limiting the range of the angle α between the first wall and the second direction, the extension direction of the connecting part can be made to fit the force direction of the connecting hole during actual operation, thereby reducing the increase in the load-bearing capacity of the connecting part due to the angle α being too large or too small, thereby increasing the difficulty in separating the connecting hole and the mounting part.

In some optional embodiments of the present application, the connecting member also includes a third wall and a fourth wall, at least part of the main body is formed between the third wall and the fourth wall, the third wall is connected to the first wall, the second wall is connected to the fourth wall, and in a plane perpendicular to the first direction, the projections of the third wall and the fourth wall are straight lines.

By adopting the above structure, by setting the third wall and the fourth wall and making the third wall and the fourth wall flat, the structure jointly formed by the first wall, the second wall, the third wall and the fourth wall can be funnel-shaped, which facilitates the installation part in the main body to be detached from the connecting hole through the connecting part.

In some optional embodiments of the present application, the angle between the third wall and the fourth wall after they are extended and intersected is β, satisfying 0＜β＜180°.

By adopting the above structure, by limiting the range of the angle β after the third wall and the fourth wall extend and intersect, the first wall, the second wall, the third wall and the fourth wall can form a funnel-like shape with a stable sharp angle, which is convenient for guiding the mounting member in the main body to the connecting portion, so that the mounting member abuts against the weaker connecting portion, and is convenient for The connecting part is opened under load.

In some optional embodiments of the present application, the connector further includes a rounded surface, and the third wall surface and the first wall surface, as well as the fourth wall surface and the second wall surface are connected respectively via the rounded surfaces.

By adopting the above structure and setting the rounded surface, on the one hand, the transition between the third wall surface and the first wall surface, and between the fourth wall surface and the second wall surface can be made smoother, which is convenient for the installation part in the main body to enter the connecting part. On the other hand, a bell mouth can be formed on the side of the connecting part connecting to the main body, which is convenient for the installation part in the main body to abut against the connecting part.

In some optional embodiments of the present application, in a plane perpendicular to the first direction, the projection of the main body portion is polygonal, and the connecting portion is connected to the main body portion at any corner of the main body portion.

By adopting the above structure, the projection of the main body is polygonal, so that the shape of the main body is more regular, which is convenient for the molding of the main body, and the main body has more angular structures, which is convenient for the setting of the connecting part.

In some optional embodiments of the present application, in a plane perpendicular to the first direction, the projection of the main body is a quadrilateral, two diagonal lines of the projection of the main body are parallel to the second direction and the third direction, respectively, and the connecting portion is connected to the main body at the corner of the main body along the second direction.

By adopting the above structure, the projection of the main body is made into a quadrilateral, and the two diagonal lines of the projection of the main body are respectively parallel to the second direction and the third direction, so that the structure of the main body can be made more stable and the mechanical strength of the connecting hole can be improved.

In some optional embodiments of the present application, the bracket includes two, and the first ends of the two brackets are respectively connected to the upper surfaces of the two longitudinal beams along the first direction, and the connector includes two, and the two connectors are respectively connected to the second ends on the two brackets.

With the above structure, brackets and connectors are provided on both longitudinal beams, which facilitates the connection between the frame body and the vehicle bodies on both sides.

According to a second aspect of the embodiments of the present application, a vehicle is provided. The vehicle includes a vehicle body, a mounting member, and a subframe of the vehicle. The mounting member passes through a connecting hole and connects the vehicle body and the connecting member.

Compared with the related art, in the subframe and vehicle of the vehicle of the embodiment of the present application, by extending the connecting hole to the edge of the connecting piece along the second direction and forming an opening, the connecting hole can have a load-bearing weak point. When the subframe is subjected to a large external force, the connecting hole is easy to deform, so that the mounting part in the connecting hole is separated from the connecting piece, thereby realizing the separation of the subframe and the vehicle body, so that the subframe can normally provide collision energy absorption space for the vehicle, thereby improving the reliability of the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS

The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

FIG1 is a schematic diagram of the structure of a vehicle provided in some embodiments of the present application.

FIG. 2 is a schematic structural diagram of a subframe of a vehicle provided in some embodiments of the present application.

FIG. 3 is a schematic diagram of the structure of a bracket provided in some embodiments of the present application.

FIG. 4 is a schematic diagram of a top view of the structure of a connector provided in some embodiments of the present application.

FIG. 5 is a schematic diagram of a top view of the structure of a connector provided in some other embodiments of the present application.

In the drawings, the drawings are not necessarily drawn to scale.

Marking Description:
1000, vehicle; 100, battery; 200, controller; 300, motor;
10. frame body; 11. longitudinal beam; 111. groove; 112. upper surface; 12. cross beam; 20. bracket;
21. First end; 22. Second end; 221. Mounting groove; 30. Connector; 31. Connecting hole; 311. Main body; 312. Connecting portion; 313. First wall; 314. Second wall; 315. Rounded surface; 316. Third wall; 317. Fourth wall; 32. Edge in the second direction; 33. Opening.

DETAILED DESCRIPTION

The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

At present, from the perspective of market development, the use of automobiles is becoming more and more popular. With the development of automobile technology, the market has also put forward higher requirements on the reliability of automobile use. Therefore, the reliability of automobile use is one of the current research focuses.

In the related art, the suspension system of an automobile is usually equipped with a subframe, such as the front subframe corresponding to the front suspension system, and the front subframe is used to support the front suspension system, such as providing mounting points for components such as control arms, stabilizer bars, steering gears, and rear suspensions of the powertrain. In order to strengthen the connection strength between the front subframe and the vehicle body, a bracket structure is also provided on the front subframe, which is used to connect to the vehicle body, and is used to connect the middle tower of the vehicle body longitudinal beam, etc. After the front subframe is connected to the vehicle body through the bracket structure, the bracket provides a stable pulling force for the front subframe, causing the front subframe to be unable to bend to the side away from the vehicle body when the vehicle collides, resulting in the inability to fully release the collision space, making it easy for the collision to invade the vehicle body structure (such as the passenger compartment), affecting the reliability of the vehicle.

In order to reduce the problem of the bracket affecting the reliability of automobile use, the structure of the bracket can be adjusted so that the side of the bracket connected to the body can be easily deformed under load, thereby realizing the separation of the bracket from the body. For example, the body and the bracket are mostly connected by fasteners, and the bracket usually provides a through hole for fastener connection. A weak area can be formed on the through hole. After the bracket is under load, the weak area of the through hole is deformed, making it impossible for the fastener to be fixed, which helps to separate the bracket from the body, fully release the collision space on the subframe, and improve the reliability of automobile use.

Based on the above considerations, a subframe of a vehicle and a vehicle are designed.

An embodiment of the present application provides a vehicle, which may be a fuel vehicle, a gas vehicle, or a new energy vehicle, etc. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.

For the convenience of description, the following embodiments are described by taking an electric vehicle 1000 as an example of a vehicle in one embodiment of the present application.

FIG1 is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application.

As shown in FIG1 , a battery 100 is disposed inside the vehicle 1000, and the battery 100 can be disposed at the bottom, head, or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000, for example, the battery 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 can also include a controller 200 and a motor 300, wherein the controller 200 is used to control the battery 100 to power the motor 300, and the motor 300 is used to provide driving force for the movement of the vehicle 1000, for example, for the starting, navigation, and working power requirements of the vehicle 1000 during driving.

In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

In the embodiments of the present application, the battery 100 mentioned herein refers to a single physical module including one or more battery cells to provide a higher voltage and capacity. For example, the battery 100 mentioned herein may include a battery module or a battery pack.

FIG2 is a schematic diagram of the structure of a subframe of a vehicle provided in some embodiments of the present application, FIG3 is a schematic diagram of the structure of a bracket 20 provided in some embodiments of the present application, and FIG4 is a schematic diagram of the top view of the structure of a connector 30 provided in some embodiments of the present application.

As shown in FIGS. 2 to 4 , in some optional embodiments of the present application, a subframe of a vehicle is provided, comprising a frame body 10, a bracket 20 and a connector 30. The bracket 20 comprises a first end 21 and a second end 22 opposite to each other, and the first end 21 is used to connect with the frame body 10. The connector 30 is connected to the second end 22, and the connector 30 is provided with a connecting hole 31, which passes through the connector 30 along a first direction x, and the connecting hole 31 extends to an edge 32 of the connector 30 along a second direction y and forms an opening 33, the first direction x is parallel to the height direction of the bracket 20, and the first direction x is perpendicular to the second direction y.

The subframe of the vehicle may be a frame structure used to support the suspension system in the vehicle. The subframe of the embodiment of the present application may be a front subframe or a rear subframe. For example, the subframe of the embodiment of the present application may be a front subframe used to support the front suspension system.

The frame body 10 may be the main load-bearing structure in the sub-frame. For example, the frame body 10 may be in a plate shape, a frame shape, or other shapes.

The bracket 20 may be a structure of a sub-frame connected to the vehicle body. For example, the bracket 20 may be a columnar structure, a platform structure, or a rod-shaped structure protruding from the frame body 10 in the first direction.

The connecting member 30 may be a structure located on the bracket 20 and used to fix the bracket 20 to the vehicle body. For example, when the bracket 20 is connected to the vehicle body by bolts, the connecting member 30 may be a sheet structure, a table structure, or a block structure, etc., having a connecting hole 31. For example, in order to reduce the volume occupied by the connecting member 30 and facilitate the connection between the connecting member 30 and the bracket 20, the connecting member 30 may be a sheet structure having a connecting hole 31.

By extending the connection hole 31 to the edge 32 of the connection member 30 along the second direction y and forming an opening 33, a load-bearing weak point can be provided on the connection hole 31. When a large external force is applied to the sub-frame, the connection hole 31 is easily deformed, so that the mounting member in the connection hole 31 is separated from the connection member 30, thereby realizing the separation of the sub-frame from the vehicle body, so that the sub-frame can normally provide collision energy absorption space for the vehicle, thereby improving the reliability of the vehicle.

In some embodiments, the bracket 20 may be a columnar structure whose height extends along the first direction x, and the first end 21 and the second end 22 are two ends of the bracket 20 in the first direction x.

In some embodiments, the connector 30 and the bracket 20 may be integrally formed, or may be separately fixedly connected, such as by welding, gluing, or fastener connection.

In some embodiments, the bracket 20 and the frame body 10 may be integrally formed, or may be separately fixedly connected, such as by welding, gluing, etc.

4 , in some embodiments, the second end 22 may be provided with a mounting groove 221 , and the connecting member 30 is connected to the second end 22 via the mounting groove 221 .

It is understandable that the connecting hole 31 can be a normal hole-shaped structure, and other weak structures can be set on the connecting member 30 to facilitate the destruction of the connecting hole 31. For example, a weak area can also be set on the connecting member 30, and the thickness of the connecting member 30 is thinned in the weak area, and one end of the weak area is in contact with the connecting hole 31, and the other end extends to the end of the connecting member 30 along the second direction y.

In actual use, when the frame body 10 is bent by external force, the bracket 20 moves with the frame body 10. At this time, the mounting part inserted into the connecting hole 31 abuts against the inner wall of the connecting hole 31. When the abutting force exceeds the load-bearing threshold of the opening side of the connecting hole 31, the connecting hole 31 is stretched open along the opening 33, so that the hole structure is destroyed, thereby separating the bracket 20 from the vehicle body.

As shown in Figures 2 to 4, in some optional embodiments of the present application, the frame body 10 includes two longitudinal beams 11 and two cross beams 12, the two longitudinal beams 11 are arranged at intervals along the second direction y, and the two cross beams 12 are arranged at intervals along the third direction z, the two cross beams 12 are located between the two longitudinal beams 11 and are respectively connected to the two longitudinal beams 11, the third direction z is perpendicular to the first direction and the second direction, and the first end 21 is connected to the upper surface 112 of the longitudinal beam 11 along the first direction x.

For example, the longitudinal beams 11 refer to two supporting beams arranged along the width direction of the vehicle.

For example, the cross beams 12 refer to two supporting beams arranged along the width direction of the vehicle.

Firstly, by providing two longitudinal beams 11 and two transverse beams 12, a stable frame structure can be provided for the frame body 10, which facilitates setting the mounting points of the suspension system on the frame body 10. Secondly, by connecting the first end 21 to the upper surface 112 of the longitudinal beam 11 along the first direction x, the frame body 10 can be conveniently connected to the longitudinal beam 11 of the vehicle body through the bracket 20.

In some embodiments, the two longitudinal beams 11 and the two transverse beams 12 may be arranged in a tic-tac-toe pattern and enclose a square area.

In some embodiments, a support plate may be provided in the square area to constitute a component that provides a support base on the frame body 10 . For example, the support plate may be laid on two longitudinal beams 11 and two transverse beams 12 .

As shown in Figures 2 to 4, in some optional embodiments of the present application, a groove 111 is provided on the upper surface of the longitudinal beam 11 along the first direction x, and the groove 111 is recessed toward the side away from the bracket 20 in the first direction x, and the groove 111 is provided on one side of the first end 21 in the third direction z.

By providing the groove 111 on the longitudinal beam 11, a weak load-bearing point can be provided on the longitudinal beam 11. When the frame body 10 is subjected to a large external force along the third direction z, the longitudinal beam 11 is easy to collapse from the groove 111, thereby providing a collision energy absorption space for the vehicle. At the same time, the bending direction of the longitudinal beam 11 when collapsing is toward the side away from the connecting member 30, thereby reducing the impact of the collapse of the longitudinal beam 11 on the internal structure of the vehicle body.

In some embodiments, one end of the longitudinal beam 11 along the third direction z faces the front of the vehicle, and the other end along the third direction z faces the rear of the vehicle, and the groove 111 is disposed on a side of the first end 21 close to the front of the vehicle.

In some embodiments, in the second direction y, a portion of the connecting hole 31 extends to an edge of the connecting member 30 on a side of the connecting member 30 away from the other longitudinal beam 11 and forms an opening 33 .

As shown in Figures 2-4, in some optional embodiments of the present application, the connecting hole 31 includes a main body portion 311 and a connecting portion 312, the connecting portion 312 is arranged on one side of the second direction y of the main body portion 311, and the connecting portion 312 connects the main body portion 311 and the outside of the connecting member 30 in the second direction to form an opening 33.

The main body 311 may be the main body of the hole structure on the connection hole 31 , and is used to bear the function of passing an object through the connection hole 31 . Exemplarily, when the bracket 20 is connected to the vehicle body by bolts, the bolts are passed through the main body 311 .

The connecting portion 312 may be a portion of the connecting hole 31 for connecting the main body 311 and the outside of the connecting member 30 in the second direction y.

By providing the main body 311 and the connecting portion 312 , the connecting hole 31 can have two relatively independent parts, wherein the main body 311 meets the need of inserting the mounting piece in the connecting hole 31 , and the connecting portion 312 meets the need of forming an opening on the connecting hole 31 .

As shown in FIG. 2 to FIG. 4 , in some optional embodiments of the present application, in a plane perpendicular to the first direction x, the projection of the connecting portion 312 is inclined toward a side away from the projection of the groove 111 .

Since the groove 111 is arranged on one side of the bracket 20 in the third direction z, when the longitudinal beam 11 collapses, the external force on the bracket 20 is the force toward the groove 111. According to the interaction relationship of the forces, when the connecting hole 31 abuts against the mounting member penetrated therein, the external force is the force away from the groove 111. At this time, the connecting portion 312 is tilted toward the side away from the groove 111, so that the extension direction of the connecting portion 312 is the same as the direction of the force during actual action, which facilitates the separation of the mounting member in the connecting hole 31 from the connecting member 30.

In some embodiments, in a plane perpendicular to the first direction x, the projection of the connecting portion 312 may be a straight line or a curve inclined toward a side away from the projection of the groove 111 .

As shown in Figures 2 to 4, in some optional embodiments of the present application, the connecting member 30 includes a first wall 313 and a second wall 314 arranged in parallel, and the connecting portion 312 is formed between the first wall 313 and the second wall 314. The first wall 313 is parallel to the first direction x, and the first wall 313 intersects with the second direction y.

By forming the connecting portion 312 between the first wall surface 313 and the second wall surface 314 which are arranged in parallel, the connecting portion can be made linear, so that the connecting portion 312 can be opened under load, so that the mounting member in the connecting hole 31 can be separated from the connecting member 30 .

It can be understood that the first wall surface 313 is a side wall on one side of the connecting portion 312 , and the second wall surface 314 is a side wall on the other side of the connecting portion 312 .

As shown in FIG. 2 to FIG. 4 , in some optional embodiments of the present application, the angle between the first wall surface 313 and the second direction y is α, satisfying 0＜α≤45°.

By limiting the range of the angle α between the first wall 313 and the second direction y, the extension direction of the connecting portion 312 can be aligned with the force direction of the connecting hole 31 during actual operation, thereby reducing the load-bearing capacity of the connecting portion 312 due to the angle α being too large or too small, thereby increasing the difficulty in separating the connecting hole 31 from the mounting member.

In some embodiments, the angle between the first wall 313 and the second direction y is α, which satisfies 5°≤α≤45°, 10°≤α≤40°, 15°≤α≤35°, 20°≤α≤30° or 25°≤α≤30°.

As shown in Figures 2 to 4, in some optional embodiments of the present application, the connecting member 30 also includes a third wall 316 and a fourth wall 317, at least a portion of the main body 311 is formed between the third wall 316 and the fourth wall 317, the third wall 316 is connected to the first wall 313, the second wall 314 is connected to the fourth wall 317, and in a plane perpendicular to the first direction x, the projections of the third wall 316 and the fourth wall 317 are straight lines.

By setting the third wall 316 and the fourth wall 317 and making the third wall 316 and the fourth wall 317 flat, the structure formed by the first wall 313, the second wall 314, the third wall 316 and the fourth wall 317 can be funnel-shaped, which facilitates the installation parts in the main body 311 to be detached from the connecting hole 31 through the connecting part 312.

As shown in FIG. 2 to FIG. 4 , in some optional embodiments of the present application, the angle between the third wall 316 and the fourth wall 317 after extending and intersecting is β, satisfying 0＜β＜180°.

By limiting the range of the angle β after the third wall 316 and the fourth wall 317 extend and intersect, the first wall 313, the second wall 314, the third wall 316 and the fourth wall 317 can together form a funnel-like shape with stable sharp angles, which is convenient for guiding the mounting parts in the main body 311 to the connecting part 312, so that the mounting parts abut against the weaker connecting part 312, and the connecting part 312 can be opened under force.

In some embodiments, the angle between the third wall 316 and the fourth wall 317 after extending and intersecting is β, which satisfies 10°≤β≤170°, 20°≤β≤160°, 30°≤β≤150°, 40°≤β≤140°, 50°≤β≤130°, 60°≤β≤120°, 70°≤β≤110°, 80°≤β≤100° or 90°≤β≤100°.

As shown in FIG. 2-FIG . 4 , in some optional embodiments of the present application, the connector 30 further includes a rounded surface 315 , and the third wall 316 and the first wall 313 , as well as the fourth wall 317 and the second wall 314 are connected via the rounded surface 315 .

By providing the rounded surface 315, on the one hand, the transition between the third wall 316 and the first wall 313, and between the fourth wall 317 and the second wall 314 can be made smoother, so that the installation parts in the main body 311 can be easily introduced into the connecting part 312. On the other hand, a bell mouth can be formed on the side where the connecting part 312 connects to the main body 311, so that the installation parts in the main body 311 can be easily abutted against the connecting part 312.

In some embodiments, two rounded surfaces 315 may be provided, one between the third wall surface 316 and the first wall surface 313 , and one between the fourth wall surface 317 and the second wall surface 314 .

In some embodiments, the fillet surface 315 is a convex fillet surface.

As shown in FIG. 2-FIG 4 , in some optional embodiments of the present application, in a plane perpendicular to the first direction x, the projection of the main body 311 is polygonal, and the connecting portion 312 is connected to the main body 311 at any corner of the main body 311 .

By making the projection of the main body 311 a polygon, the shape of the main body 311 can be more regular, which is convenient for the main body 311 to be arranged in a rectangular shape. The body portion 311 is formed so as to have more corner structures, which is convenient for setting the connecting portion 312 .

In some embodiments, in a plane perpendicular to the first direction x, the projection of the body portion 311 may be a triangle, a rectangle, a pentagon, a hexagon, or the like.

As shown in Figures 2 to 4, in some optional embodiments of the present application, in a plane perpendicular to the first direction x, the projection of the main body 311 is a quadrilateral, and the two diagonal lines of the projection of the main body 311 are respectively parallel to the second direction y and the third direction z, and the connecting portion 312 is connected to the main body 311 at the corner of the main body 311 along the second direction y.

By making the projection of the main body 311 a quadrilateral and making the two diagonal lines of the projection of the main body 311 parallel to the second direction y and the third direction z respectively, the structure of the main body 311 can be made more stable and the mechanical strength of the connecting hole 31 can be improved.

In some embodiments, the projection of the main body 311 is in a diamond shape.

FIG. 5 is a schematic diagram of a top view of the structure of a connector 30 provided in some other embodiments of the present application.

As shown in Figure 5, in some optional embodiments of the present application, in a plane perpendicular to the first direction x, the projection of the main body 311 is a quadrilateral, one of the two diagonals of the projection of the main body 311 is parallel to the first wall 313, and the connecting portion 312 is connected to the main body 311 at the end of the diagonal parallel to the first wall 313.

By making the communicating portion 312 communicate with the main body portion 311 at the end of the diagonal line parallel to the first wall surface 313 , it is possible to facilitate the installation member to enter the communicating portion 312 .

5 , in some embodiments, each corner of the body portion 311 may be rounded.

As shown in FIG. 1 , in some optional embodiments of the present application, the bracket 20 includes two, and the first ends 21 of the two brackets 20 are respectively connected to the upper surfaces 112 of the two longitudinal beams 11 along the first direction x, and the connectors 30 include two, and the two connectors 30 are respectively connected to the second ends 22 of the two brackets 20. The brackets 20 and the connectors 30 are arranged on both longitudinal beams 11, which can facilitate the connection of the frame body 10 with the vehicle bodies on both sides.

In some optional embodiments of the present application, a vehicle is provided, the vehicle comprising a vehicle body, a mounting member and a subframe of the above vehicle, the mounting member passes through a connecting hole 31 and connects the vehicle body and the connecting member 30 .

In some embodiments, the mounting member may be a bolt.

In some optional embodiments of the present application, a subframe of a vehicle is provided, comprising a frame body 10, a bracket 20 and a connector 30. The bracket 20 comprises a first end 21 and a second end 22 opposite to each other, and the first end 21 is used to connect with the frame body 10. The connector 30 is connected to the second end 22, and the connector 30 is provided with a connecting hole 31, the connecting hole 31 passes through the connector 30 along the first direction x, and the connecting hole 31 extends to the edge of the connector 30 along the second direction y and forms an opening, and the first direction x is perpendicular to the second direction y. The frame body 10 comprises two longitudinal beams 11 and two cross beams 12, the two longitudinal beams 11 are arranged at intervals along the second direction y, the two cross beams 12 are arranged at intervals along the third direction z, the two cross beams 12 are located between the two longitudinal beams 11 and are respectively connected to the two longitudinal beams 11, the third direction z is perpendicular to the first direction x and the second direction y, and the first end 21 is connected to the upper surface of the longitudinal beam 11 along the first direction x. A groove 111 is provided on the upper surface of the longitudinal beam 11 along the first direction x. In the first direction x, the groove 111 is recessed toward the side away from the bracket 20. In the third direction z, the groove 111 is provided on one side of the first end 21. The connecting hole 31 includes a body portion 311 and a connecting portion 312. The connecting portion 312 is provided on one side of the body portion 311 in the second direction y. The connecting portion 312 connects the body portion 311 and the outside of the connecting member 30 in the second direction y to form an opening. The connecting member 30 includes a first wall surface 313 and a second wall surface 314 provided in parallel. The connecting portion 312 is formed between the first wall surface 313 and the second wall surface 314. The first wall surface 313 The first wall surface 313 is parallel to the first direction x, and the first wall surface 313 intersects with the second direction y, and the angle between the first wall surface 313 and the second direction y is α, which satisfies 25°≤α≤30°. In a plane perpendicular to the first direction x, the projection of the main body 311 is a quadrilateral, and the two diagonal lines of the projection of the main body 311 are respectively parallel to the second direction y and the third direction z, and the connecting portion 312 is connected to the main body 311 at the corner of the main body 311 along the second direction y.

Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (14)

A subframe of a vehicle, comprising: Frame body; A bracket, comprising a first end and a second end opposite to each other, wherein the first end is used to connect to the frame body; A connecting member is connected to the second end, and the connecting member is provided with a connecting hole, the connecting hole penetrates the connecting member along a first direction, and the connecting hole extends to the edge of the connecting member along a second direction to form an opening, and the first direction is perpendicular to the second direction. The vehicle subframe according to claim 1, wherein the frame body comprises two longitudinal beams and two cross beams, the two longitudinal beams are spaced apart along the second direction, the two cross beams are spaced apart along the third direction, the two cross beams are located between the two longitudinal beams and are respectively connected to the two longitudinal beams, the third direction is perpendicular to the first direction and the second direction, and the first end is connected to the upper surface of the longitudinal beam along the first direction. The vehicle subframe according to claim 2, wherein a groove is provided on the upper surface of the longitudinal beam along the first direction, the groove is recessed toward a side away from the bracket in the first direction, and the groove is provided on one side of the first end in the third direction. The vehicle subframe according to claim 3, wherein the connecting hole comprises a main body portion and a connecting portion, the connecting portion is provided on one side of the main body portion in the second direction, and the connecting portion connects the main body portion and the outside of the connecting member in the second direction to form an opening. The vehicle subframe according to claim 4, wherein, in a plane perpendicular to the first direction, a projection of the communication portion is inclined toward a side away from a projection of the groove. The vehicle subframe according to claim 4 or 5, wherein the connecting member comprises a first wall surface and a second wall surface arranged in parallel, and the connecting portion is formed between the first wall surface and the second wall surface; The first wall surface is parallel to the first direction, and the first wall surface intersects with the second direction. The vehicle subframe according to claim 6, wherein the angle between the first wall surface and the second direction is α, satisfying 0＜α≤45°. The vehicle subframe according to claim 6 or 7, wherein the connecting member further comprises a third wall surface and a fourth wall surface, at least a portion of the main body portion is formed between the third wall surface and the fourth wall surface, the third wall surface is connected to the first wall surface, and the second wall surface is connected to the fourth wall surface; In a plane perpendicular to the first direction, projections of the third wall surface and the fourth wall surface are straight lines. The vehicle subframe according to claim 8, wherein the angle between the third wall and the fourth wall after they extend and intersect is β, satisfying 0＜β＜180°. The vehicle subframe according to claim 8 or 9, wherein the connecting member further comprises a rounded surface, and the third wall surface and the first wall surface, and the fourth wall surface and the second wall surface are respectively connected via the rounded surfaces. The vehicle subframe according to any one of claims 4 to 10, wherein in a plane perpendicular to the first direction, the projection of the main body is a polygon, and the connecting portion is connected to the main body at any corner of the main body. The body is connected. The subframe of a vehicle according to any one of claims 4 to 11, wherein, in a plane perpendicular to the first direction, the projection of the main body is a quadrilateral, two diagonals of the projection of the main body are respectively parallel to the second direction and the third direction, and the connecting portion is connected to the main body at a corner of the main body along the second direction. The subframe of a vehicle according to any one of claims 2 to 12, wherein the brackets include two, and the first ends of the two brackets are respectively connected to the upper surfaces of the two longitudinal beams along the first direction, and the connecting members include two, and the two connecting members are respectively connected to the second ends of the two brackets. A vehicle, comprising: Car body; A subframe for a vehicle as claimed in any one of claims 1 to 13; and A mounting member passes through the connecting hole and connects the vehicle body and the connecting member.