CN210139901U - Automobile front floor longitudinal beam structure and automobile - Google Patents
Automobile front floor longitudinal beam structure and automobile Download PDFInfo
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- CN210139901U CN210139901U CN201920287637.1U CN201920287637U CN210139901U CN 210139901 U CN210139901 U CN 210139901U CN 201920287637 U CN201920287637 U CN 201920287637U CN 210139901 U CN210139901 U CN 210139901U
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- flanging
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Abstract
The utility model provides a floor longeron structure and car before car, wherein floor longeron structure includes before the car: the side sill comprises a front floor, a front longitudinal beam positioned in front of the front floor and a doorsill side beam positioned on the side of the front floor; the first end of the front floor lower longitudinal beam is connected with the front longitudinal beam; and after the second end of the front floor lower longitudinal beam is bent and extended towards the threshold boundary beam, the second end of the front floor lower longitudinal beam is bent and extended along the direction back to the front longitudinal beam and then fixedly connected with the threshold boundary beam, and the bent parts all form obtuse fillets. The bending part of the front floor lower longitudinal beam is gentle, so that the force transmission efficiency can be improved, and the front floor and the passenger compartment can be protected.
Description
Technical Field
The utility model relates to an automobile body field, concretely relates to floor longeron structure and car before car.
Background
With the wide application of automobiles, the safety problem of automobiles is increasingly highlighted. The existing automobiles all adopt a safe automobile body structure, the structure requires that when the automobiles collide, front and rear collision areas deform to absorb collision energy, and a middle passenger compartment needs to be firm and reliable to ensure the living space of passengers.
In the existing automobile body structure adopted by an automobile, a front floor is arranged at the front part below a passenger compartment of the automobile, a front wall and a front longitudinal beam are arranged in front of the front floor, threshold side beams are arranged on two sides of the front floor, and the front wall, the front longitudinal beam and the front floor are connected through a front floor longitudinal beam structure. The front floor longitudinal beam structure comprises a front floor longitudinal beam, the front floor longitudinal beam is generally a cuboid structure, the front floor longitudinal beam is collinear with the front longitudinal beam, the first end of the front floor longitudinal beam is connected with the front wall and the front longitudinal beam, the second end of the front floor longitudinal beam is connected with the front floor, and the front longitudinal beam and the threshold boundary beam are not collinear, so that the front floor longitudinal beam structure further comprises a longitudinal beam reinforcing plate, the first end of the longitudinal beam reinforcing plate is perpendicularly connected with the second end of the front floor longitudinal beam, and the second end of the longitudinal beam reinforcing plate is connected with the threshold boundary beam. The front floor longitudinal beam structure is arranged, so that the direct impact force borne by the front longitudinal beam can be dispersed to the front wall and the threshold side beam to protect the front floor; or the side impact force applied to the doorsill edge beam is dispersed to the front wall and the front longitudinal beam so as to protect the front floor. For the electric automobile, most batteries of the electric automobile are placed on the front floor, so the arrangement of the longitudinal beam structure of the front floor can protect the batteries and avoid the collision of the batteries.
In the prior art, a front floor longitudinal beam and a longitudinal beam reinforcing plate in a front floor longitudinal beam structure are vertically connected, and a right-angle structure can cause low force transmission efficiency, is not beneficial to the transmission and dispersion of collision force, and further can influence the firmness of a passenger compartment.
Disclosure of Invention
The utility model provides a floor longeron structure and car before car aims at solving the preceding floor longeron transmission efficiency among the prior art and hangs down, is unfavorable for the transmission of collision force and the problem of dispersion.
In order to solve the above problem, the utility model provides a floor longeron structure before car, include:
the side sill comprises a front floor, a front longitudinal beam positioned in front of the front floor and a doorsill side beam positioned on the side of the front floor; the first end of the front floor lower longitudinal beam is connected with the front longitudinal beam; and after the second end of the front floor lower longitudinal beam is bent and extended towards the threshold boundary beam, the second end of the front floor lower longitudinal beam is bent and extended along the direction back to the front longitudinal beam and then fixedly connected with the threshold boundary beam, and the bent parts all form obtuse fillets. The bent part of the front floor lower longitudinal beam is in smooth transition, so that the transmission efficiency of the collision force can be improved, and a passenger compartment can be better protected; meanwhile, the arrangement of the longitudinal beam reinforcing plates is reduced, so that the structure is simpler, and the cost is reduced.
Optionally, the automobile front floor rail structure described above:
the inner surface of the threshold side beam is provided with a battery pack longitudinal beam, and the second end of the front floor lower longitudinal beam is connected with the battery pack longitudinal beam. The front floor lower longitudinal beam is connected with the battery pack longitudinal beam, so that the inner side of the battery pack longitudinal beam is transmitted to the doorsill side beam and the front longitudinal beam to protect the battery pack.
Optionally, in the above automobile front floor longitudinal beam structure, the front floor longitudinal beam includes a longitudinal beam bottom plate disposed parallel to the front floor; the first end of the bottom plate of the lower longitudinal beam is clamped inside the front longitudinal beam, the second end of the bottom plate of the lower longitudinal beam is bent and extended towards the threshold side beam, then bent and extended along the direction back to the front longitudinal beam and then connected with the longitudinal beam of the battery pack, and the bent parts form blunt fillets; the first side of the second end of the bottom plate of the lower longitudinal beam is close to the threshold boundary beam and extends towards the lower surface of the threshold boundary beam to form a bottom plate flanging, and the upper surface of the bottom plate flanging is connected with the lower surface of the threshold boundary beam; a first side of a first end of the bottom plate of the lower longitudinal beam extends towards the front floor to form a first side plate of the lower longitudinal beam, the first end of the first side plate of the lower longitudinal beam is clamped in the front longitudinal beam, and a second end of the first side plate of the lower longitudinal beam abuts against the inner surface of the threshold side beam; the second side of the bottom plate of the lower longitudinal beam extends towards the front floor to form a second side plate of the lower longitudinal beam, the first end of the second side plate of the lower longitudinal beam is clamped in the front longitudinal beam, and the second end of the second side plate of the lower longitudinal beam is connected with the longitudinal beam of the battery pack. The structure of the front floor lower longitudinal beam can reduce the self weight so as to meet the requirement of lightening the automobile and ensure the strength and rigidity of the structure.
Optionally, in the above automobile front floor rail structure:
one side, close to the front floor, of the first lower longitudinal beam side plate extends in the direction back to the lower longitudinal beam bottom plate to form a first lower longitudinal beam flanging, and the first lower longitudinal beam flanging is fixedly connected with the front floor; the first end of the first lower longitudinal beam flanging abuts against the front longitudinal beam, and the second end of the first lower longitudinal beam flanging abuts against the inner surface of the threshold side beam; one side, close to the front floor, of the second lower longitudinal beam side plate extends in the direction back to the lower longitudinal beam bottom plate to form a second lower longitudinal beam flanging, and the second lower longitudinal beam flanging is fixedly connected with the front floor; and the first end of the flanging of the second lower longitudinal beam is abutted against the front longitudinal beam, and the second end of the flanging of the second lower longitudinal beam is connected with the longitudinal beam of the battery pack. The arrangement of the first lower longitudinal beam flanging and the second lower longitudinal beam flanging can facilitate welding the front floor lower longitudinal beam to the front floor, and meanwhile, the contact surface between the front floor lower longitudinal beam and the front floor can be increased, and the stability of fixing the lower longitudinal beam is improved.
Optionally, the above-mentioned front floor rail structure for an automobile further includes:
the front wall is positioned at the joint of the front longitudinal beam and the front floor lower longitudinal beam; the front floor upper longitudinal beam is fixed on the upper surface of the front floor and is arranged opposite to the front floor lower longitudinal beam, and the first end of the front floor upper longitudinal beam is abutted against the front periphery; and after the second end of the upper longitudinal beam of the front floor is bent and extended towards the threshold boundary beam, the upper longitudinal beam is bent and extended along the direction back to the front longitudinal beam and then fixedly connected with the threshold boundary beam, and the bent parts form blunt fillets. The arrangement of the front floor upper side member can further improve the transmission efficiency of the collision force to protect the passenger compartment and the battery.
Optionally, in the above automobile front floor longitudinal beam structure, the front floor upper longitudinal beam includes an upper longitudinal beam bottom plate disposed parallel to the front floor; the first end of the upper longitudinal beam bottom plate is abutted against the front periphery, the second end of the upper longitudinal beam bottom plate bends and extends towards the doorsill edge beam and then bends and extends along the direction back to the front longitudinal beam, and the bending part is a blunt fillet; the first side of the second end of the upper longitudinal beam bottom plate is close to the doorsill edge beam and extends along the direction back to the front floor to form a fixed flanging, and the side surface of the fixed flanging is connected with the inner surface of the doorsill edge beam; a first side of a first end of the upper longitudinal beam bottom plate extends towards the front floor to form a first upper longitudinal beam side plate, the first end of the first upper longitudinal beam side plate is abutted against the front wall, and the second end of the first upper longitudinal beam side plate is abutted against the inner surface of the threshold side beam; and a second side of the upper longitudinal beam bottom plate extends towards the front floor to form a second upper longitudinal beam side plate, and a first end of the second upper longitudinal beam side plate is abutted against the front periphery. The structure of the longitudinal beam on the front floor can reduce the self weight so as to meet the requirement of lightening the automobile and ensure the strength and rigidity of the structure.
Optionally, in the above automobile front floor rail structure:
one side, close to the front floor, of the first upper longitudinal beam side plate extends in the direction back to the upper longitudinal beam bottom plate to form a first upper longitudinal beam flanging, and the first upper longitudinal beam flanging is fixedly connected with the front floor; the first end of the first upper longitudinal beam flanging abuts against the front periphery and is fixedly connected with the first lower longitudinal beam flanging; the second end of the first lower longitudinal beam flanging abuts against the inner surface of the threshold side beam; one side, close to the front floor, of the second upper longitudinal beam side plate extends in the direction back to the upper longitudinal beam bottom plate to form a second upper longitudinal beam flanging, and the second upper longitudinal beam flanging is fixedly connected with the front floor; and the first end of the second upper longitudinal beam flanging is abutted against the front wall and is fixedly connected with the second lower longitudinal beam flanging. The arrangement of the first upper longitudinal beam flanging and the second upper longitudinal beam flanging can facilitate the welding of the front floor upper longitudinal beam to the front floor, and meanwhile, the contact surface between the front floor upper longitudinal beam and the front floor can be increased, so that the stability of the upper longitudinal beam fixation is improved.
Optionally, in the above automobile front floor rail structure:
and the second end of the upper longitudinal beam bottom plate is bent towards the front floor, extends and then is fixed on the front floor. The structure can enhance the structural stability of the bottom plate of the upper longitudinal beam, so that the bottom plate is not easy to deform.
Optionally, in the above automobile front floor rail structure:
the first upper longitudinal beam flanging and the second upper longitudinal beam flanging are both formed with bulges. The welding point is convenient for a welder to find by the aid of the convex arrangement, and welding work efficiency during welding can be improved.
Based on the same inventive concept, the utility model also provides an automobile, including above-mentioned arbitrary preceding floor longeron structure of car. The bending part of the automobile bottom plate longitudinal beam structure included in the automobile is in smooth transition, so that the transmission efficiency of the collision force can be improved, and a passenger compartment can be better protected; meanwhile, the arrangement of the longitudinal beam reinforcing plates is reduced, so that the structure is simpler, and the cost is reduced.
Automobile front floor longeron structure and car, wherein automobile front floor longeron structure includes the front floor, is located front floor the place ahead longeron, be located the threshold boundary beam of front floor side and being fixed in the front floor lower longitudinal beam of the lower surface on front floor, wherein the first end and the front longitudinal beam joint of front floor lower longitudinal beam are connected, and the second end is connected with the threshold boundary beam, just the equal level and smooth transition of the department of buckling of front floor lower longitudinal beam, therefore can with the effectual transmission of the sideslip power that the threshold boundary beam received is for the front longitudinal beam to floor and battery package before the protection, equally can be with the effectual transmission of power that the front longitudinal beam received on the threshold boundary beam. The bending parts of the lower longitudinal beam of the front floor in the embodiment are all blunt rounded corners, namely, a smooth bending mode is realized, and the use of right angles is avoided, so that the transmission efficiency of the collision force can be improved, the transmission and the dispersion of the collision force are facilitated, and the firmness of a passenger compartment is ensured; and because the lower longitudinal beam of the front floor is directly connected with the threshold boundary beam, the use of longitudinal beam reinforcing plates is reduced, the cost is reduced, and the structure is simpler.
Drawings
Fig. 1 is a schematic structural view of a front floor longitudinal beam structure of an automobile according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a front floor lower longitudinal beam of an automobile front floor longitudinal beam structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a front floor longitudinal beam structure of an automobile according to another embodiment of the present invention;
fig. 4 is a schematic structural view of a front floor upper longitudinal beam of an automobile front floor longitudinal beam structure according to another embodiment of the present invention;
fig. 5 is a schematic partial cross-sectional view of a front floor rail structure of an automobile according to another embodiment of the present invention;
fig. 6 is another schematic partial cross-sectional view of a front floor rail structure of an automobile according to another embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment provides an automobile front floor side member structure, which includes a front floor, a front side member located in front of the front floor, a rocker side member located at a side of the front floor, and a front floor side member fixed to a lower surface of the front floor. As shown in fig. 1, the front of the front floor 101 is the same as the forward direction of the automobile, and the first end of the front floor lower longitudinal beam 1 is connected with the front longitudinal beam; the second end of the front floor lower longitudinal beam 1 is bent towards the threshold side beam 102, then bent and extended along the direction back to the front longitudinal beam, and then fixedly connected to the threshold side beam 102, and each bent part forms an obtuse fillet.
In the longitudinal beam structure of the front floor of the automobile in the embodiment, the first end of the front floor lower longitudinal beam 1 is connected with the front longitudinal beam in a clamping manner, the second end of the front floor lower longitudinal beam 1 is connected with the threshold side beam 102, and the bent part of the front floor lower longitudinal beam 1 is in smooth transition, so that the side impact force applied to the threshold side beam 102 can be effectively transmitted to the front longitudinal beam to protect the front floor 101 and the battery pack, and the force applied to the front longitudinal beam can be effectively transmitted to the threshold side beam 102. In the embodiment, the bending parts of the front floor lower longitudinal beam 1 are all blunt fillets, namely, a smooth bending mode is realized, and the use of right angles is avoided, so that the transmission efficiency of the collision force can be improved, the transmission and the dispersion of the collision force are facilitated, and the firmness of a passenger compartment is ensured; and because the front floor lower longitudinal beam 1 is directly connected with the threshold side beam 102, the use of longitudinal beam reinforcing plates is reduced, the cost is reduced, and the structure is simpler.
In addition, in the above automobile front floor longitudinal beam structure, as shown in fig. 1, a battery pack longitudinal beam 103 is further disposed on an inner surface of the rocker side beam 102, and a second end of the front floor lower longitudinal beam 1 is connected to the battery pack longitudinal beam 103, so that when the front floor lower longitudinal beam is impacted, the front floor lower longitudinal beam 1 can disperse the impact to the battery pack longitudinal beam 103 to protect the battery pack and the passenger compartment.
The front floor side sill 1 may be an S-shaped metal plate or other S-shaped structure. The embodiment provides a concrete structure of front floor longitudinal beam 1, as shown in fig. 2, including longitudinal beam bottom plate 11, longitudinal beam bottom plate 11 is on a parallel with front floor 101 sets up, the first end joint of longitudinal beam bottom plate 11 in the inside of front beam, the second end of longitudinal beam bottom plate 11 to threshold boundary beam 102 is buckled the back, again along dorsad the direction of front beam extend the back with battery package longeron 103 is connected, and the department of buckling all forms the blunt fillet. The first side of the second end of the bottom plate 11 of the side sill is close to the threshold side beam 102 and extends to the lower surface of the threshold side beam 102 to form a bottom plate flange 12, and the upper surface of the bottom plate flange 12 is connected with the lower surface of the threshold side beam 102. A first side of a first end of the side sill bottom plate 11 extends in the direction of the front floor 101 to form a first side sill side plate 13, the first end of the first side sill side plate 13 is clamped inside the front side sill, and a second end of the first side sill side plate is abutted against the inner surface of the threshold side sill 102. The second side of the bottom plate 11 of the side sill extends towards the front floor 101 to form a second side sill side plate 14, the first end of the second side sill side plate 14 is clamped inside the front side sill, and the second end is connected with the battery pack longitudinal beam 103.
In the above embodiment, the first side sill side plate 13 and the second side sill side plate 14 are integrally connected to the side sill bottom plate 11, so that the cross section of the front floor side sill 1 is U-shaped, and the U-shaped front floor side sill 1 can reduce the weight of the whole vehicle, thereby facilitating the weight reduction of the vehicle and simultaneously meeting the requirements of the front floor side sill 1 on the rigidity and hardness. The first side sill side panel 13 and the second side sill side panel 14 can be directly connected with the front floor 101, so that a closed structure is formed between the front floor side sill 1 and the front floor 101 of the U-shaped structure, and the strength of the whole structure is increased.
In addition, the front floor side sill 1 of the U-shaped structure may be connected to the front floor 101 in another manner, as shown in fig. 2, that is, a side of the first side sill side panel 13 adjacent to the front floor 101 extends in a direction away from the side sill bottom panel 11 to form a first side sill flange 15, and the first side sill flange 15 is fixedly connected to the front floor 101. The first end of the first side sill flange 15 abuts against the front side sill and the second end abuts against the inner surface of the rocker sill 102. The second side sill side plate 14 is close to one side of the front floor 101 and extends in a direction back to the side sill bottom plate 11 to form a second side sill flange 16, the second side sill flange 16 is fixedly connected with the front floor 101, a first end of the second side sill flange 16 abuts against the front side sill, and a second end of the second side sill flange is connected with the battery pack longitudinal beam 103.
In the above scheme, the arrangement of the first lower longitudinal beam flanging 15 and the second lower longitudinal beam flanging 16 can increase the contact area between the first lower longitudinal beam side plate 13 and the front floor 101 and between the second lower longitudinal beam side plate 14 and the front floor 101, so that the lower longitudinal beam bottom plate 11, the first lower longitudinal beam side plate 13 and the second lower longitudinal beam side plate 14 can be stably fixed on the lower surface of the front floor, a closed structure is formed between the front floor 101 and the front floor lower longitudinal beam 1, the strength of the front floor lower longitudinal beam 1 is increased, and meanwhile, the arrangement of the first lower longitudinal beam flanging 15 and the second lower longitudinal beam flanging 16 can also facilitate welding connection.
In some specific embodiments, as shown in fig. 3, the automobile front floor longitudinal beam structure further includes a front wall and a front floor upper longitudinal beam 2, the front wall is located at a connection portion of the front longitudinal beam and the front floor lower longitudinal beam 1, the front floor upper longitudinal beam 2 is fixed on an upper surface of a front floor 101, the front floor upper longitudinal beam 2 is arranged opposite to the front floor lower longitudinal beam 1, a first end of the front floor upper longitudinal beam 2 abuts against the front wall, a lower surface of the first end of the front floor upper longitudinal beam 2 is fixedly connected with the front floor lower longitudinal beam 1, a second end of the front floor upper longitudinal beam 2 is bent towards the threshold side beam 102, then bent and extended along a direction back to the front longitudinal beam and then fixedly connected to the threshold side beam 102, and the bent portion forms a blunt rounded corner. The front floor upper side member 2 functions in the same manner as the front floor lower side member 1, and therefore the provision of the front floor upper side member 2 can further disperse the force applied to the rocker side member 102 and the force applied to the front side member, and prevent the upper floor lower side member from being excessively stressed.
Similarly, the front floor upper longitudinal beam 2 may also be an S-shaped metal plate or other S-shaped structures. As shown in fig. 4, the present embodiment provides a specific structure of an upper longitudinal beam 2 of a front floor, including an upper longitudinal beam bottom plate 21 disposed parallel to the front floor 101, a first end of the upper longitudinal beam bottom plate 21 abuts against the front wall, a second end of the upper longitudinal beam bottom plate 21 bends and extends toward the threshold side beam 102, and then bends and extends along a direction away from the front longitudinal beam, and the bending portions are all obtuse rounded corners. The first side of the second end of the upper longitudinal beam bottom plate 21 is close to the doorsill edge beam 102, and extends along the direction back to the front floor 101 to form a fixing flange 22, and the side surface of the fixing flange 22 is connected with the inner surface of the doorsill edge beam 102. A first side of the first end of the upper side rail bottom plate 21 extends towards the front floor 101 to form a first upper side rail side plate 23, the first end of the first upper side rail side plate 23 abuts against the front periphery, and the second end of the first upper side rail side plate 23 abuts against the inner surface of the threshold side rail 102, or extends along the inner surface of the threshold side rail 102 and then is fixedly connected with the inner surface of the threshold side rail 102. A second side of the upper side member bottom plate 21 extends in the front floor direction to form a second upper side member side plate 24, and a first end of the second upper side member side plate 24 abuts on the front wall.
In the above embodiment, the first upper longitudinal beam side plate 23 and the second upper longitudinal beam side plate 24 are integrally connected with the upper longitudinal beam bottom plate 21, so that the cross section of the front floor upper longitudinal beam 2 is U-shaped, and the front floor upper longitudinal beam 2 with a U-shaped structure can reduce the weight of the whole automobile, thereby being beneficial to the light weight of the automobile and simultaneously meeting the requirements of the structure of the front floor upper longitudinal beam 2 on the rigidity and the hardness. The first upper side frame side plate 23 and the second upper side frame side plate 24 can be directly connected with the front floor 101, so that a closed structure is formed between the front floor lower side frame 1 and the front floor 101 of the U-shaped structure, and the strength of the whole structure is increased.
The front floor upper longitudinal beam 2 can also be fixed in other ways, as shown in fig. 4, one side of the first upper longitudinal beam side plate 23 adjacent to the front floor 101 extends along a direction back to the upper longitudinal beam bottom plate 21 to form a first upper longitudinal beam flange 25, the first upper longitudinal beam flange 25 is parallel to and fixed on the upper surface of the front floor 101, a first end of the first upper longitudinal beam flange 25 abuts against the front periphery, a lower surface of a first end of the first upper longitudinal beam flange 25 is fixed on the front floor lower longitudinal beam 1, specifically fixed on the first lower longitudinal beam flange 15 and coincides with the first lower longitudinal beam flange 15, a second end of the first lower longitudinal beam flange 15 abuts against the inner surface of the threshold side beam 102, or extends along the inner surface of the threshold side beam 102 and then is fixedly connected with the threshold side beam 102. One side, close to the front floor 101, of the second upper longitudinal beam side plate 24 extends in a direction back to the upper longitudinal beam bottom plate 21 to form a second upper longitudinal beam flange 26, the second upper longitudinal beam flange 26 is parallel and fixed to the lower surface of the front floor 101, a first end of the second upper longitudinal beam flange 26 abuts against the front periphery, and a lower surface of a first end of the second upper longitudinal beam flange 26 is fixed to the front floor lower longitudinal beam 1, specifically to the second lower longitudinal beam flange 16.
In the above scheme, the arrangement of the first upper longitudinal beam flange 25 and the second upper longitudinal beam flange 26 can increase the contact area between the first upper longitudinal beam side plate 23 and the front floor 101 and between the second upper longitudinal beam side plate 24 and the front floor 101, so that the upper longitudinal beam bottom plate 21, the first upper longitudinal beam side plate 23 and the second upper longitudinal beam side plate 24 can be stably fixed on the upper surface of the front floor, and a closed structure is formed between the front floor and the front floor upper longitudinal beam 2, so as to increase the strength of the front floor upper longitudinal beam 2 and facilitate welding connection. And the first end of the front floor upper longitudinal beam 2 is fixed with the front floor lower longitudinal beam 1, so that a sealed cavity is formed between the first end of the front floor upper longitudinal beam 2 and the first end of the front floor lower longitudinal beam 1, the strength of the whole front floor longitudinal beam structure can be increased, and the life safety of passengers in the vehicle is effectively protected.
As shown in fig. 3 and 4, the second end of the upper longitudinal beam bottom plate 21 is bent toward the front floor 101, extended, and then fixed to the front floor 101, so as to further fix the front floor upper longitudinal beam 2. As shown in fig. 4, the first upper longitudinal beam flange 25 and the second upper longitudinal beam flange 26 are both formed with a protrusion 27, and the protrusion 27 can increase the thickness of the first upper longitudinal beam flange 25 and the second upper longitudinal beam flange 26, and further can increase the strength of the first upper longitudinal beam flange 25 and the second upper longitudinal beam flange 26. The number of the bulges 27 is multiple, the bulges 27 are uniformly distributed along the length direction of the first upper longitudinal beam flanging 25 or the length direction of the second upper longitudinal beam flanging 26, and the welding positions can be indicated by the bulges 27, so that a welder can weld the front floor upper longitudinal beam 2 to the front floor 101 according to the indicated positions of the bulges 27, and weld the first end of the front floor upper longitudinal beam 2 to the front floor lower longitudinal beam 1. Reinforcing ribs are formed on the upper longitudinal beam bottom plate 21 along the length direction of the upper longitudinal beam bottom plate 21, and the reinforcing ribs can further increase the strength of the upper longitudinal beam bottom plate 21.
Fig. 5 is a cross-sectional view taken at a in fig. 3, showing the front floor side sill 1 and the front floor upper side sill 2 disposed opposite to each other, and the side sill pans 11 disposed opposite to and parallel to the upper side sill pans 21. Fig. 6 is a cross-sectional view at B of fig. 3, showing the manner of fixing the floor flange 12 of the front floor side sill 1 to the rocker 102, and the manner of fixing the fixing flange 22 of the front floor side sill 2 to the rocker 102.
The embodiment provides an automobile, which comprises the automobile front floor longitudinal beam structure in any one embodiment. Generally, a left threshold side beam and a right threshold side beam are arranged on the left side and the right side of a front floor 101 of an automobile, and a left front longitudinal beam and a right front longitudinal beam are arranged in front of the front floor 101, so that two groups of automobile front floor longitudinal beam structures in any one embodiment are generally arranged in one automobile, and the two groups of automobile front floor longitudinal beam structures are symmetrically distributed and are in a splayed shape. The automobile comprises the front floor longitudinal beam structure which comprises the front floor longitudinal beam 1, the front floor longitudinal beam 1 is in smooth transition, and does not have a right angle, so that force can be effectively transmitted and dispersed, and the front floor longitudinal beam 1 is directly connected with the threshold side beam 102, so that the number of longitudinal beam reinforcing plates is reduced, the cost is reduced, and the structure is simpler.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An automobile front floor longitudinal beam structure, characterized by comprising:
the side sill comprises a front floor, a front longitudinal beam positioned in front of the front floor and a doorsill side beam positioned on the side of the front floor;
the first end of the front floor lower longitudinal beam is connected with the front longitudinal beam; and after the second end of the front floor lower longitudinal beam is bent and extended towards the threshold boundary beam, the second end of the front floor lower longitudinal beam is bent and extended along the direction back to the front longitudinal beam and then fixedly connected with the threshold boundary beam, and the bent parts all form obtuse fillets.
2. The automobile front floor rail structure according to claim 1, characterized in that:
the inner surface of the threshold side beam is provided with a battery pack longitudinal beam, and the second end of the front floor lower longitudinal beam is connected with the battery pack longitudinal beam.
3. The automobile front floor rail structure according to claim 2, characterized in that the front floor side sill includes a side sill pan disposed parallel to the front floor;
the first end of the bottom plate of the lower longitudinal beam is clamped inside the front longitudinal beam, the second end of the bottom plate of the lower longitudinal beam is bent and extended towards the threshold side beam, then bent and extended along the direction back to the front longitudinal beam and then connected with the longitudinal beam of the battery pack, and the bent parts form blunt fillets;
the first side of the second end of the bottom plate of the lower longitudinal beam is close to the threshold boundary beam and extends towards the lower surface of the threshold boundary beam to form a bottom plate flanging, and the upper surface of the bottom plate flanging is connected with the lower surface of the threshold boundary beam;
a first side of a first end of the bottom plate of the lower longitudinal beam extends towards the front floor to form a first side plate of the lower longitudinal beam, the first end of the first side plate of the lower longitudinal beam is clamped in the front longitudinal beam, and a second end of the first side plate of the lower longitudinal beam abuts against the inner surface of the threshold side beam;
the second side of the bottom plate of the lower longitudinal beam extends towards the front floor to form a second side plate of the lower longitudinal beam, the first end of the second side plate of the lower longitudinal beam is clamped in the front longitudinal beam, and the second end of the second side plate of the lower longitudinal beam is connected with the longitudinal beam of the battery pack.
4. The automobile front floor rail structure according to claim 3, characterized in that:
one side, close to the front floor, of the first lower longitudinal beam side plate extends in the direction back to the lower longitudinal beam bottom plate to form a first lower longitudinal beam flanging, and the first lower longitudinal beam flanging is fixedly connected with the front floor; the first end of the first lower longitudinal beam flanging abuts against the front longitudinal beam, and the second end of the first lower longitudinal beam flanging abuts against the inner surface of the threshold side beam;
one side, close to the front floor, of the second lower longitudinal beam side plate extends in the direction back to the lower longitudinal beam bottom plate to form a second lower longitudinal beam flanging, and the second lower longitudinal beam flanging is fixedly connected with the front floor; and the first end of the flanging of the second lower longitudinal beam is abutted against the front longitudinal beam, and the second end of the flanging of the second lower longitudinal beam is connected with the longitudinal beam of the battery pack.
5. The automobile front floor rail structure according to claim 4, characterized by further comprising:
the front wall is positioned at the joint of the front longitudinal beam and the front floor lower longitudinal beam;
the front floor upper longitudinal beam is fixed on the upper surface of the front floor and is arranged opposite to the front floor lower longitudinal beam, and the first end of the front floor upper longitudinal beam is abutted against the front periphery; and after the second end of the upper longitudinal beam of the front floor is bent and extended towards the threshold boundary beam, the upper longitudinal beam is bent and extended along the direction back to the front longitudinal beam and then fixedly connected with the threshold boundary beam, and the bent parts form blunt fillets.
6. The automobile front floor rail structure according to claim 5, characterized in that the front floor upper rail includes an upper rail bottom plate disposed parallel to the front floor;
the first end of the upper longitudinal beam bottom plate is abutted against the front periphery, the second end of the upper longitudinal beam bottom plate bends and extends towards the doorsill edge beam and then bends and extends along the direction back to the front longitudinal beam, and the bending part is a blunt fillet;
the first side of the second end of the upper longitudinal beam bottom plate is close to the doorsill edge beam and extends along the direction back to the front floor to form a fixed flanging, and the side surface of the fixed flanging is connected with the inner surface of the doorsill edge beam;
a first side of a first end of the upper longitudinal beam bottom plate extends towards the front floor to form a first upper longitudinal beam side plate, the first end of the first upper longitudinal beam side plate is abutted against the front wall, and the second end of the first upper longitudinal beam side plate is abutted against the inner surface of the threshold side beam;
and a second side of the upper longitudinal beam bottom plate extends towards the front floor to form a second upper longitudinal beam side plate, and a first end of the second upper longitudinal beam side plate is abutted against the front periphery.
7. The automobile front floor rail structure according to claim 6, characterized in that:
one side, close to the front floor, of the first upper longitudinal beam side plate extends in the direction back to the upper longitudinal beam bottom plate to form a first upper longitudinal beam flanging, and the first upper longitudinal beam flanging is fixedly connected with the front floor; the first end of the first upper longitudinal beam flanging abuts against the front periphery and is fixedly connected with the first lower longitudinal beam flanging; the second end of the first lower longitudinal beam flanging abuts against the inner surface of the threshold side beam;
one side, close to the front floor, of the second upper longitudinal beam side plate extends in the direction back to the upper longitudinal beam bottom plate to form a second upper longitudinal beam flanging, and the second upper longitudinal beam flanging is fixedly connected with the front floor; and the first end of the second upper longitudinal beam flanging is abutted against the front wall and is fixedly connected with the second lower longitudinal beam flanging.
8. The automobile front floor rail structure according to claim 7, characterized in that:
and the second end of the upper longitudinal beam bottom plate is bent towards the front floor, extends and then is fixed on the front floor.
9. The automobile front floor rail structure according to claim 8, characterized in that:
the first upper longitudinal beam flanging and the second upper longitudinal beam flanging are both formed with bulges.
10. An automobile comprising the automobile front floor rail structure according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287637.1U CN210139901U (en) | 2019-03-07 | 2019-03-07 | Automobile front floor longitudinal beam structure and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287637.1U CN210139901U (en) | 2019-03-07 | 2019-03-07 | Automobile front floor longitudinal beam structure and automobile |
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| CN210139901U true CN210139901U (en) | 2020-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942472A (en) * | 2020-08-20 | 2020-11-17 | 重庆金康赛力斯新能源汽车设计院有限公司 | Front longitudinal beam assembly with high strength |
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2019
- 2019-03-07 CN CN201920287637.1U patent/CN210139901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942472A (en) * | 2020-08-20 | 2020-11-17 | 重庆金康赛力斯新能源汽车设计院有限公司 | Front longitudinal beam assembly with high strength |
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