Vehicle threshold beam assembly

Abstract

A vehicle doorsill beam assembly comprises a doorsill beam outer plate, a doorsill beam inner plate and a supporting part, the doorsill beam outer plate and the doorsill beam inner plate are connected to form a containing cavity, the supporting part is arranged in the containing cavity, the supporting part comprises a base body, at least two first connecting arms and at least two second connecting arms, and the first connecting arms and the second connecting arms are arranged on the base body. The at least two first connecting arms are arranged at intervals in the X direction, the at least two second connecting arms are arranged at intervals in the X direction, one end of each first connecting arm is connected with the upper end of the base body, and one end of each second connecting arm is connected with the lower end of the base body. The first connecting arm and the second connecting arm are connected with the doorsill beam outer plate and the doorsill beam inner plate correspondingly, the good structure supporting effect can be achieved, the collision performance of a vehicle is improved, and the good lightweight effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle door sill beam assembly. Background Art

[0002] The sill beam is an important part of the vehicle body structure. It is located under the vehicle door and can provide support. It can also block mud, water, stones and other impurities splashed from the road when the vehicle is driving. When the vehicle encounters a collision accident, especially a side collision accident, the sill beam is subjected to the collision impact and absorbs the collision energy to protect the vehicle door and prevent the door from undergoing large deformation during the collision.

[0003] The stiffness of a vehicle's rocker beam is crucial to its safety. If the stiffness is insufficient, it can easily deform significantly during a collision. In severe cases, the rocker beam can intrude into the passenger compartment, endangering the safety of occupants and impairing the overall vehicle's collision performance. Therefore, a vehicle rocker beam assembly with excellent structural stability is urgently needed. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a vehicle sill beam assembly with good structural stability. During a collision, the sill beam outer plate and the sill beam inner plate are not easily disconnected, thereby improving the safety of the vehicle.

[0005] The utility model provides a vehicle sill beam assembly, comprising a sill beam outer plate, a sill beam inner plate and a support portion, wherein the sill beam outer plate is connected to the sill beam inner plate to form an accommodating cavity, and the support portion is arranged in the accommodating cavity, and the support portion comprises a base, at least two first connecting arms and at least two second connecting arms, wherein the at least two first connecting arms are arranged at intervals along the X direction, and the at least two second connecting arms are arranged at intervals along the X direction, one end of the first connecting arm is connected to the upper end of the base, and one end of the second connecting arm is connected to the lower end of the base, and the first connecting arm and the second connecting arm are respectively connected to the sill beam outer plate and the sill beam inner plate.

[0006] In one embodiment, a collapse groove is formed on the base body, and the collapse groove penetrates the base body along the Y direction. The collapse groove forms at least two force transmission arms on the base body, and the force transmission arms extend along the Z direction.

[0007] In one embodiment, a guide groove is provided at the lower portion of the base, the guide groove passes through the base along the Y direction, and the guide groove is connected to the collapse groove. The guide groove is provided above the second connecting arm, and the number of the guide grooves corresponds to the number of the second connecting arms.

[0008] In one embodiment, the base includes a buffer member, the buffer member protrudes toward a side close to the rocker beam inner plate, and the buffer member forms a buffer groove on a side of the base away from the rocker beam inner plate.

[0009] In one embodiment, the buffer component is located on the upper portion of the base body, and / or the buffer component is located on the force transmission arm.

[0010] In one embodiment, a first interval is provided between the two first connecting arms, and a width of the first connecting arm in the X direction is smaller than a width of the first interval in the X direction.

[0011] In one embodiment, a second interval is provided between the two second connecting arms, and a width of the second connecting arm in the X direction is greater than a width of the second interval in the X direction.

[0012] In one embodiment, a first flange is provided at the upper end of the threshold beam outer plate, and a second flange is provided at the lower end. The first flange and the second flange extend along the Z direction. The first flange is connected to the first connecting arm, and the second flange is connected to the second connecting arm.

[0013] In one embodiment, a third flange is provided at the upper end of the inner plate of the sill beam, and a fourth flange is provided at the lower end. The third flange and the fourth flange extend along the Z direction. The third flange is connected to the first connecting arm, and the fourth flange is connected to the second connecting arm.

[0014] In one embodiment, a first connecting groove is provided on a side of the third flange close to the outer plate of the sill beam, and the first connecting arm is accommodated and fixed in the first connecting groove, and / or a second connecting groove is provided on a side of the fourth flange close to the outer plate of the sill beam, and the second connecting arm is accommodated and fixed in the second connecting groove.

[0015] The beneficial effects of the present invention are:

[0016] The support portion is arranged in the accommodating cavity, which can increase the structural rigidity and strength of the sill beam outer plate and the sill beam inner plate, thereby improving the structural stability and reliability of the sill beam; the support portion is connected to the sill beam outer plate and the sill beam inner plate through at least two first connecting arms arranged at intervals, which has good connection strength, so that the upper part of the support portion is not easy to separate from the sill beam outer plate and the sill beam inner plate during a collision; the support portion is connected to the sill beam outer plate and the sill beam inner plate through at least two second connecting arms arranged at intervals, so that the lower part of the support portion is not easy to separate from the sill beam outer plate and the sill beam inner plate, which can play a good structural supporting role and improve the collision performance of the vehicle. The overall weight of the support portion is relatively light, with a good lightweight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the connection between the outer plate of the door sill beam and the supporting portion according to an embodiment of the present invention;

[0020] Figure 3 This is a structural diagram of the connection between the inner plate of the door sill beam and the supporting portion according to an embodiment of the present invention.

[0021] In the picture:

[0022] 10-sill beam outer plate; 101-accommodating cavity; 11-first flange; 12-second flange; 20-sill beam inner plate; 21-third flange; 22-fourth flange; 23-first connecting groove; 231-first contact piece; 24-second connecting groove; 241-second contact piece; 30-support portion; 31-base; 311-collapse groove; 312-force transmission arm; 313-guide groove; 314-buffer piece; 315-buffer groove; 32-first connecting arm; 321-first interval; 33-second connecting arm; 331-second interval; 40-side outer plate. DETAILED DESCRIPTION

[0023] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0024] Unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0025] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0026] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0027] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0028] As attached Figure 2 As shown in the coordinate system in , the X, Y, and Z directions in the coordinate system are based on the vehicle coordinate system. The vehicle coordinate system is a special dynamic coordinate system used to describe the movement of a car. The origin of this coordinate system coincides with the center of mass of the vehicle. When the vehicle is stationary on a horizontal road, the X direction of this coordinate system refers to the direction parallel to the direction of travel of the car, the Y direction refers to the width direction of the car, and the Z direction refers to the height direction of the car.

[0029] This coordinate system is intended to illustrate the approximate positional relationship, connection relationship or movement relationship of each component, and does not mean that the components in the present invention must be strictly set or connected according to the above coordinate system. Those skilled in the art can flexibly adjust it according to actual needs.

[0030] As attached Figure 1 As shown, the vehicle sill beam assembly proposed by the present invention includes a sill beam outer plate 10, a sill beam inner plate 20 and a support portion 30. The sill beam outer plate 10 and the sill beam inner plate 20 are connected and enclosed to form an accommodating cavity 101. The support portion 30 is arranged in the accommodating cavity 101. Figure 2 The support portion 30 includes a base 31, at least two first connecting arms 32 and at least two second connecting arms 33. The at least two first connecting arms 32 are spaced apart along the X direction, and the at least two second connecting arms 33 are spaced apart along the X direction. One end of the first connecting arm 32 is connected to the upper end of the base 31, and the first connecting arm 32 is connected to the upper part of the sill beam outer panel 10 and the upper part of the sill beam inner panel 20. One end of the second connecting arm 33 is connected to the lower end of the base 31, and the second connecting arm 33 is connected to the lower part of the sill beam outer panel 10 and the lower part of the sill beam inner panel 20.

[0031] The support portion 30 is arranged in the accommodating cavity 101, which can increase the structural rigidity and strength of the sill beam outer panel 10 and the sill beam inner panel 20, thereby improving the structural stability and reliability of the sill beam; it is connected to the sill beam outer panel 10 and the sill beam inner panel 20 by at least two first connecting arms 32 arranged at intervals, with good connection strength, so that the upper portion of the support portion 30 is not easily separated from the sill beam outer panel 10 and the sill beam inner panel 20 during a collision; it is connected to the sill beam outer panel 10 and the sill beam inner panel 20 by at least two second connecting arms 33 arranged at intervals, so that the lower portion of the support portion 30 is not easily separated from the sill beam outer panel 10 and the sill beam inner panel 20, which can play a good structural support role and improve the collision performance of the vehicle. The overall weight of the support portion 30 is relatively light, with a good lightweight effect.

[0032] Optionally, the base 31 , the first connecting arm 32 and the second connecting arm 33 are integrally formed.

[0033] Optionally, the first connecting arm 32 , the second connecting arm 33 , the sill beam outer plate 10 and the sill beam inner plate 20 are connected by welding to achieve a reliable and stable connection.

[0034] In an example scenario, as shown in the attached Figure 2 As shown, a crush groove 311 is formed on the base 31, extending through the base 31 along the Y direction. The provision of the crush groove 311 forms at least two force transmission arms 312 on the base 31, which extend generally along the Z direction. The provision of the crush groove 311 can reduce the overall weight of the base 31, thereby improving the lightweight effect. When a vehicle collision occurs, the base 31 is more likely to crush and deform. More specifically, the force transmission arms 312 are more likely to deform under the impact of the collision. The base 31 is more likely to crush and deform than the first connecting arm 32 and the second connecting arm 33, and can cooperate with the accommodating cavity 101 to provide energy absorption and buffering. It can also effectively prevent the support portion 30 from being disconnected from the sill beam outer panel 10 and the sill beam inner panel 20, thereby ensuring the overall quality of the sill beam and improving the collision safety performance of the vehicle.

[0035] Exemplarily, the upper end of the force transmission arm 312 is connected to the first connecting arm 32 , and the lower end of the force transmission arm 312 is connected to the second connecting arm 33 .

[0036] In an example scenario, as shown in the attached Figure 2As shown, a guide groove 313 is provided at the lower portion of the base 31. The guide groove 313 penetrates the base 31 along the Y direction and is connected to the crush groove 311. The number of the guide grooves 313 corresponds to the number of the second connecting arms 33, and the opening positions of the guide grooves 313 match the positions of the second connecting arms 33. The guide groove 313 is opened above the second connecting arm 33. The setting of the guide groove 313 can appropriately reduce the stiffness of the base 31 on the side close to the second connecting arm 33, so as to change the force transmission path of the support portion 30, so that the base 31 on the side close to the second connecting arm 33 is easily deformed by the impact of the collision, thereby avoiding the breakage of the second connecting arm 33, and can ensure the structural stability of the lower portion of the sill beam, so that the sill beam can still play a good supporting role during the collision, thereby improving the deformation resistance of the lower portion of the sill beam.

[0037] Exemplarily, the guide groove 313 is provided at the connection between the base 31 and the second connecting arm 33 .

[0038] In an example scenario, as shown in the attached Figure 2 As shown, and refer to the attached Figure 1 The base 31 includes a buffer member 314, which protrudes toward the side close to the door sill inner plate 20 and is combined with the attached Figure 3 The buffer member 314 forms a buffer groove 315 on the side of the base 31 away from the rocker beam inner plate 20. When the vehicle collides, the base 31 is impacted and deformed toward the side close to the rocker beam inner plate 20. The buffer member 314 will contact the rocker beam inner plate 20 before other parts of the base 31, which can play a supporting and energy-absorbing role, thereby improving structural stability.

[0039] For example, as shown in the attached Figure 2 As shown, the buffer member 314 is located on the upper portion of the base 31 to improve the structural stability of the first connecting arm 32, and / or the buffer member 314 is located on the force transmission arm 312. Optionally, the buffer member 314 extends through the force transmission arm 312 to the connection between it and the first connecting arm 32 and the second connecting arm 33.

[0040] When the buffer member 314 is located on the force transmission arm 312, it extends along the Z direction of the force transmission arm 312. When the force transmission arm 312 is deformed during a collision, the buffer member 314 and the buffer groove 315 cooperate to make the force transmission arm 312 easily collapse toward the side close to the door sill beam inner plate 20, which can avoid the force transmission arm 312 from breaking, and can improve the contour stiffness of the base 31, thereby improving the energy absorption and buffering effect.

[0041] In an example scenario, as shown in the attached Figure 3As shown, two first connecting arms 32 are provided, a first spacer 321 is provided between the two first connecting arms 32, and the width dimension of the first connecting arm 32 in the X direction is smaller than the width dimension of the first spacer 321 in the X direction, so as to improve the lightweight effect as much as possible while ensuring the rigidity, and avoid stress concentration at the first connecting arm 32, which is beneficial to improving the structural stability of the first connecting arm 32.

[0042] In an exemplary embodiment, two second connecting arms 33 are provided, and a second spacer 331 is provided between the two second connecting arms 33. The width of the second connecting arm 33 in the X-direction is greater than the width of the second spacer 331 in the X-direction, so that the second connecting arm 33 has good rigidity and is firmly connected to the sill beam outer panel 10 and the sill beam inner panel 20, thereby preventing the sill beam outer panel 10 and the sill beam inner panel 20 from being disconnected during a collision, thereby ensuring the structural integrity of the sill beam during a collision.

[0043] In an example scenario, as shown in the attached Figure 2 As shown, the upper end of the sill beam outer plate 10 is provided with a first flange 11, and the lower end is provided with a second flange 12. The first flange 11 and the second flange 12 both extend along the Z direction. The first flange 11 is used to connect with the first connecting arm 32, and the second flange 12 is used to connect with the second connecting arm 33.

[0044] Exemplarily, the first flange 11 , the second flange 12 and the sill beam outer panel 10 are integrally formed.

[0045] In an example scenario, as shown in the attached Figure 3 As shown, the upper end of the sill beam inner plate 20 is provided with a third flange 21, and the lower end is provided with a fourth flange 22. The third flange 21 and the fourth flange 22 both extend along the Z direction. The third flange 21 is used to connect with the first connecting arm 32, and the fourth flange 22 is used to connect with the second connecting arm 33.

[0046] Illustratively, the third flange 21 , the fourth flange 22 and the sill beam inner plate 20 are integrally formed.

[0047] For example, a first connecting groove 23 is provided on one side of the third flange 21 close to the sill beam outer plate 10. The first connecting groove 23 is used to accommodate the first connecting arm 32. When installing the support part 30, the first connecting arm 32 is placed in the first connecting groove 23 and fixed in the first connecting groove 23. The setting of the first connecting groove 23 can realize the rapid positioning of the first connecting arm 32, thereby reducing the difficulty of connection.

[0048] For example, as shown in the attached Figure 3As shown, the third flange 21 is provided with a first contact member 231 on the side close to the sill beam outer plate 10. The first contact member 231 forms a first groove on the side of the third flange 21 away from the sill beam outer plate 10. When the support portion 30 is connected to the sill beam inner plate 20, the first contact member 231 is matched with the first gap 321 and is accommodated in the first gap 321. Figure 1 The first contact member 231 is used to connect with the first flange 11 and the side panel outer panel 40. When the vehicle collides, the first groove makes it easy for the first contact member 231 to collapse toward the side close to the rocker beam inner panel 20 to absorb energy and ensure the reliability of the connection.

[0049] Optionally, the first contact member 231 is connected to the first flange 11 and the side panel 40 by welding.

[0050] For example, a second connecting groove 24 is provided on the side of the fourth flange 22 close to the sill beam outer plate 10. The second connecting groove 24 is used to accommodate the second connecting arm 33. When installing the support part 30, the second connecting arm 33 is placed in the second connecting groove 24 and fixed in the second connecting groove 24. The setting of the second connecting groove 24 can realize the rapid positioning of the second connecting arm 33, thereby reducing the difficulty of connection.

[0051] For example, as shown in the attached Figure 3 As shown, the fourth flange 22 is provided with a second contact member 241 on the side close to the sill beam outer plate 10. The second contact member 241 forms a second groove on the side of the fourth flange 22 away from the sill beam outer plate 10. When the support portion 30 is connected with the sill beam inner plate 20, the second contact member 241 cooperates with the second spacer 331. The second contact member 241 is accommodated in the second spacer 331. The second contact member 241 is used to connect with the second flange 12. When the vehicle collides, the second groove makes it easy for the second contact member 241 to collapse toward the side close to the sill beam inner plate 20 to absorb energy, thereby ensuring the reliability of the connection.

[0052] When connecting the support portion 30 with the sill beam outer panel 10 and the sill beam inner panel 20, first connect the first connecting arm 32 with the first flange 11 by welding, and connect the second connecting arm 33 with the second flange 12 by welding; then connect the first flange 11, the third flange 21 and the side outer panel 40 by welding, at this time the first connecting arm 32 is accommodated in the first connecting groove 23; then connect the second connecting arm 33, the second flange 12 and the fourth flange 22 by welding, and the assembly of the sill beam assembly of the present invention is completed, which has a simple structure, is easy to install, and has a small overall weight.

[0053] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle rocker beam assembly, characterized in that: The invention comprises a threshold beam outer plate (10), a threshold beam inner plate (20) and a support portion (30), wherein the threshold beam outer plate (10) and the threshold beam inner plate (20) are connected to form an accommodating cavity (101), and the support portion (30) is arranged in the accommodating cavity (101). The support portion (30) comprises a base (31), at least two first connecting arms (32) and at least two second connecting arms (33), wherein the at least two first connecting arms (32) are arranged at intervals along the X direction, and the at least two second connecting arms (33) are arranged at intervals along the X direction, one end of the first connecting arm (32) is connected to the upper end of the base (31), and one end of the second connecting arm (33) is connected to the lower end of the base (31), and the first connecting arm (32) and the second connecting arm (33) are connected to the threshold beam outer plate (10) and the threshold beam inner plate (20) respectively.

2. The vehicle rocker beam assembly according to claim 1, characterized in that: A collapse groove (311) is provided on the base (31), and the collapse groove (311) penetrates the base (31) along the Y direction. The collapse groove (311) forms at least two force transmission arms (312) on the base (31), and the force transmission arms (312) extend along the Z direction.

3. The vehicle rocker beam assembly according to claim 2, characterized in that: A guide groove (313) is provided at the lower portion of the base (31), the guide groove (313) passes through the base (31) along the Y direction, and the guide groove (313) is communicated with the collapse groove (311), the guide groove (313) is provided above the second connecting arm (33), and the number of the guide grooves (313) corresponds to the number of the second connecting arms (33).

4. The vehicle rocker beam assembly according to claim 2, characterized in that: The base (31) includes a buffer member (314), the buffer member (314) protrudes toward a side close to the threshold beam inner plate (20), and the buffer member (314) forms a buffer groove (315) on a side of the base (31) facing away from the threshold beam inner plate (20).

5. The vehicle rocker beam assembly according to claim 4, characterized in that: The buffer member (314) is located on the upper part of the base (31), and / or the buffer member (314) is located on the force transmission arm (312).

6. The vehicle rocker beam assembly according to claim 1, characterized in that: A first interval (321) is provided between the two first connecting arms (32), and the width dimension of the first connecting arm (32) in the X direction is smaller than the width dimension of the first interval (321) in the X direction.

7. The vehicle rocker beam assembly according to claim 1 or 6, characterized in that: A second interval (331) is provided between the two second connecting arms (33), and the width dimension of the second connecting arm (33) in the X direction is greater than the width dimension of the second interval (331) in the X direction.

8. The vehicle rocker beam assembly according to claim 1, characterized in that: The upper end of the threshold beam outer plate (10) is provided with a first flange (11), and the lower end is provided with a second flange (12), the first flange (11) and the second flange (12) extend along the Z direction, the first flange (11) is connected to the first connecting arm (32), and the second flange (12) is connected to the second connecting arm (33).

9. The vehicle rocker beam assembly according to claim 1 or 8, characterized in that: The upper end of the threshold beam inner plate (20) is provided with a third flange (21), and the lower end is provided with a fourth flange (22), the third flange (21) and the fourth flange (22) extend along the Z direction, the third flange (21) is connected to the first connecting arm (32), and the fourth flange (22) is connected to the second connecting arm (33).

10. The vehicle rocker beam assembly according to claim 9, characterized in that: The third flange (21) is provided with a first connecting groove (23) on a side close to the threshold beam outer plate (10), and the first connecting arm (32) is accommodated and fixed in the first connecting groove (23); and / or the fourth flange (22) is provided with a second connecting groove (24) on a side close to the threshold beam outer plate (10), and the second connecting arm (33) is accommodated and fixed in the second connecting groove (24).

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