CN217294689U - Connection structure and vehicle of longeron and A post on cabin - Google Patents

Abstract

The utility model provides a connection structure of a longitudinal beam and an A column on an engine room and a vehicle, belonging to the technical field of vehicles, comprising a first reinforcing plate, a second reinforcing plate and a third reinforcing plate, wherein the first reinforcing plate is provided with a first connection part for connecting the longitudinal beam on the engine room and a second connection part for connecting the A column, and forms a first triangular structure together with the A column; the second reinforcing plate is used for connecting the upper longitudinal beam of the engine room, the A column and the first reinforcing plate and forms a second triangular structure together with the A column; and the third reinforcing plate is positioned below the second reinforcing plate and used for connecting the A column and the automobile body lower longitudinal beam. The utility model discloses a third reinforcing plate makes longeron and automobile body longeron down be connected on the cabin, when the increase vibration transmission area, borrows the big skeleton intensity of automobile body longeron down and promotes this hookup location bulk strength. Through strengthening the design to longeron and A post hookup location on the cabin, the excitation energy of effective decay road surface, power assembly promotes the interior vibration noise quality of car.

Description

Connection structure and vehicle of longeron and A post on cabin

Technical Field

The utility model belongs to the technical field of the vehicle, concretely relates to longeron and A post's connection structure and have this kind of connection structure's vehicle on cabin.

Background

When a vehicle runs, passengers in the vehicle feel irritated due to the problem of vibration noise excited by a road surface and excited by a power assembly, the connecting position of an upper longitudinal beam of a cabin and an A column is an important channel for transmitting a structure path excited by a front suspension tire and excited by the power assembly to the vehicle body, and the strength of the connecting position directly influences the vibration excitation energy transmitted to the vehicle body by the road surface and the power assembly through the position, so that the comfort of the passengers in the vehicle is influenced.

The existing connection structure of the upper longitudinal beam and the A column of the engine room is poor, the position is generally designed to be a triangular structure, the connection strength of the position is improved by utilizing the characteristic of high triangular strength, but a single triangular sheet metal structure is adopted, the area is large, plate resonance is easy to generate, the weight of the vehicle body is increased, and a good reinforcing effect is not achieved; and the connecting span between the upper longitudinal beam of the engine room and the A column is small, the upper longitudinal beam is usually connected to the middle position of the A column, the strength of the A column is only used, and the connecting position is not reinforced by the strength of the lower longitudinal beam of the vehicle body.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a connection structure of longeron and A post on cabin aims at promoting the hookup location intensity of longeron and A post on the cabin, and then promotes the decay effect that the vibration transmitted the position.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is a connecting structure of a longitudinal beam and an A-pillar on a cabin, comprising: the first reinforcing plate is provided with a first connecting part used for connecting an upper longitudinal beam of the engine room and a second connecting part used for connecting an A column, and an upper edge line and a lower edge line of the first connecting part are arranged at an angle and form a first triangular structure together with the A column; the second reinforcing plate is used for connecting the upper longitudinal beam of the cabin, the A column and the first reinforcing plate, the second reinforcing plate comprises a first side plate and a second side plate which are arranged in an angle mode, and the A column of the first side plate and the A column of the second side plate jointly form a second triangular structure; and the third reinforcing plate is positioned below the second reinforcing plate and used for connecting the A column and the automobile body lower longitudinal beam.

With reference to the first aspect, in a possible implementation manner, the third reinforcing plate is a trapezoid structure, the upper bottom of the third reinforcing plate is connected to the a-pillar, and the lower bottom of the third reinforcing plate is connected to the vehicle body side sill.

With reference to the first aspect, in one possible implementation manner, the third reinforcing plate has a connecting flange attached to the a-pillar and the vehicle body side sill.

With reference to the first aspect, in a possible implementation manner, the connecting flange enables the third reinforcing plate to form a C-shaped structure with an opening facing the inside of the vehicle.

With reference to the first aspect, in a possible implementation manner, the connection structure further includes a fourth reinforcing plate, and the fourth reinforcing plate is connected to the inner plate of the a-pillar and located above the third reinforcing plate.

With reference to the first aspect, in a possible implementation manner, the connecting structure further includes a fifth reinforcing plate, and the fifth reinforcing plate connects the third reinforcing plate and the vehicle body side sill.

With reference to the first aspect, in a possible implementation manner, the connecting structure further includes a sixth reinforcing plate, the sixth reinforcing plate is used for connecting the cabin upper longitudinal beam, the a-pillar, and the vehicle body lower longitudinal beam, and the sixth reinforcing plate is connected to a side, facing the outside of the vehicle, of the second side plate.

In combination with the first aspect, in a possible implementation manner, the connection structure further comprises an arch-shaped reinforcing plate, the arch-shaped reinforcing plate is connected towards one side inside the vehicle, the arch-shaped reinforcing plate is connected towards one side outside the vehicle, the sixth reinforcing plate is connected towards one side outside the vehicle, the lower end of the arch-shaped reinforcing plate is used for being connected with the longitudinal beam under the vehicle body, a first curved surface is formed on the front side of the arch-shaped reinforcing plate, a second curved surface is formed on the front side of the sixth reinforcing plate, and the curvature of the first curved surface is consistent with that of the second curved surface.

With reference to the first aspect, in a possible implementation manner, the connecting structure further includes a seventh reinforcing plate located above the second reinforcing plate, and configured to connect the a-pillar and the nacelle upper longitudinal beam.

The utility model provides a connection structure of longeron and A post on cabin, compared with prior art, beneficial effect lies in: a double triangular structure is constructed by the first reinforcing plate and the second reinforcing plate, the connecting structure of the upper longitudinal beam of the engine room and the A column can be designed in a reinforced mode by the reinforcing effect of the triangular structure, and the attenuation capacity of the connecting structure of the upper longitudinal beam of the engine room and the A column to the road surface and the excitation path of a power assembly is improved; the cavity structure design is carried out on the position through the second reinforcing plate, a large plate structure is not needed, the strength of the connecting part is improved, meanwhile, the weight is reduced, and the light weight of the whole vehicle is facilitated; particularly, the third reinforcing plate connects the cabin upper longitudinal beam and the vehicle body lower longitudinal beam, and the overall strength of the connection position is improved by the aid of the large framework strength of the vehicle body lower longitudinal beam while the vibration transmission area is increased. Through strengthening the design to longeron and A post hookup location on the cabin, the excitation energy of effective decay road surface, power assembly promotes the interior vibration noise quality of car.

In a second aspect, an embodiment of the present invention further provides a vehicle, including the cabin on the connection structure of the longitudinal beam and the a-pillar.

The vehicle that this embodiment provided, owing to promoted the joint strength of longeron and A post on the cabin, reduce cabin longeron and transmit to A post vibration sensitivity, lay the structure basis for the high travelling comfort of motorcycle type.

Drawings

Fig. 1 is a schematic structural view of a connection structure between a longitudinal beam and an a-pillar on a nacelle according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a connection structure between a longitudinal beam and an a-pillar on a nacelle according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of the connecting structure of the nacelle upper longitudinal beam and the A-pillar provided in FIG. 2, with the nacelle upper longitudinal beam removed;

FIG. 4 is a schematic front view of the connecting structure of the nacelle upper longitudinal beam and the A-pillar shown in FIG. 2 with the nacelle upper longitudinal beam removed;

FIG. 5 is a schematic structural diagram of a third reinforcing plate according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a second reinforcing plate according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a second reinforcing plate according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of an arch-shaped reinforcing plate according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the nacelle with the longitudinal beam and the a-pillar outer panel removed according to the embodiment of the present invention;

FIG. 10 is a schematic plan view of the structure of FIG. 9 with the sixth reinforcing panel removed;

FIG. 11 is a schematic perspective view of the sixth reinforcement panel shown in FIG. 10 with the sixth reinforcement panel removed;

FIG. 12 is a perspective view of the structure of FIG. 11 with the third reinforcing plate removed;

FIG. 13 is a schematic view of the inner panel of FIG. 9 with the A-pillar removed;

fig. 14 is a first schematic perspective view of a third reinforcing plate according to an embodiment of the present invention;

fig. 15 is a schematic perspective view of a third reinforcing plate according to an embodiment of the present invention;

fig. 16 is a first schematic perspective view of a seventh reinforcing plate according to an embodiment of the present invention;

fig. 17 is a schematic perspective view of a seventh reinforcing plate according to an embodiment of the present invention;

fig. 18 is a first schematic perspective view of a fourth reinforcing plate according to an embodiment of the present invention;

fig. 19 is a schematic perspective view of a fourth reinforcing plate according to an embodiment of the present invention;

fig. 20 is a first schematic perspective view of a fifth reinforcing plate according to an embodiment of the present invention;

fig. 21 is a schematic perspective view of a fifth reinforcing plate according to an embodiment of the present invention;

fig. 22 is a first partial schematic structural view of a connection structure between a longitudinal beam and an a-pillar on a nacelle according to an embodiment of the present invention;

fig. 23 is a partial schematic structural view of a connection structure between a longitudinal beam and an a-pillar on a nacelle according to an embodiment of the present invention;

fig. 24 is a schematic structural view of a first reinforcing plate according to an embodiment of the present invention;

description of reference numerals:

1. an upper longitudinal beam of the engine room; 2. a second triangular structure; 3. a column A; 4. a sixth reinforcing plate; 5. a vehicle body lower longitudinal beam; 6. a triangular notch; 7. an arched reinforcing plate; 71. carrying out arched flanging; 8. a second reinforcing plate; 81. a first flanging; 82. a fourth flanging; 83. third flanging; 84. second flanging; 85. fifthly, flanging; 86. a first side plate; 87. a second side plate; 9. a first reinforcing plate; 91. a first connection portion; 92. a second connecting portion; 10. a seventh reinforcing plate; 11. a third reinforcing plate; 12. a fourth reinforcing plate; 13. the fifth strengthening board.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, in the description of the present invention, terms indicating the orientation relation such as "front-back, up-down, left-right" and the like appear in correspondence with the orientation of "front-back, up-down, left-right" of the vehicle.

Referring to fig. 1 and 2, fig. 9 to 11, and fig. 24, a connection structure between an upper longitudinal beam and an a-pillar of a nacelle according to the present invention will now be described. The connecting structure of the upper longitudinal beam of the cabin and the A column comprises a first reinforcing plate 9, a second reinforcing plate 8 and a third reinforcing plate 11, wherein the first reinforcing plate 9 is provided with a first connecting part 91 used for connecting the upper longitudinal beam 1 of the cabin and a second connecting part 92 used for connecting the A column 3, and the upper edge line and the lower edge line of the first connecting part 91 are arranged at an angle and form a first triangular structure together with the A column 3; the second reinforcing plate 8 is used for connecting the upper longitudinal beam 1 of the nacelle, the A column 3 and the first reinforcing plate 9, the second reinforcing plate 8 comprises a first side plate 86 and a second side plate 87 which are arranged at an angle, and the first side plate 86, the second side plate 87 and the A column 3 jointly form a second triangular structure 2; a third reinforcement panel 11 is located below the second reinforcement panel 8 for connecting the a-pillar 3 and the side sill 5.

In the triangles marked by the two dotted lines in fig. 2 and 4, the dotted line of the large triangle is a first triangle structure, the dotted line of the small triangle is a second triangle structure 2, and the connecting part of the longitudinal beam 1 and the A column 3 on the cabin forms a double triangle base; the third reinforcing plate 11 is shown in broken lines in fig. 10.

The utility model provides a longeron 1 and A post 3's connection structure on cabin, beneficial effect lies in: (1) through the first reinforcing plate 9 and the second reinforcing plate 8, a double-triangular structure is constructed, the connecting structure of the longitudinal beam 1 and the A column 3 on the cabin is designed in a reinforcing mode by utilizing the characteristic of high strength of the double triangle, and the attenuation capacity of the connecting structure of the longitudinal beam 1 and the A column 3 on the cabin to a road surface and a power assembly excitation path is improved.

(2) The cavity structure design is carried out on the position through the second reinforcing plate 8, a large plate structure is not needed, the strength of the connecting part is improved, the weight is reduced, and the light weight of the whole vehicle is facilitated.

(3) In particular, the nacelle upper side member 1 and the body lower side member 5 are connected by the third reinforcing plate 11, and the vibration transmission area is increased and the overall strength of the connection position is improved by the large frame strength of the body lower side member 5. Through strengthening the design to longeron 1 and the 3 hookup locations of A post on the cabin, the excitation energy of effective decay road surface, power assembly promotes the interior vibration noise quality of car.

In the present embodiment, the first connecting portion 91 is connected to the side of the cabin upper side member 1 facing the inside of the vehicle, and the second connecting portion 92 is connected to the front side of the inner panel of the a-pillar 3; the second reinforcing plate 8 is connected to the vehicle exterior side of the second connecting portion 92, and the first side plate 86 and the second side plate 87 of the second reinforcing plate 8 are connected to the front side of the a-pillar outer panel, respectively.

In some embodiments, referring to fig. 9 to 11 and 14 to 15, the third reinforcing plate 11 has a trapezoidal structure, the upper bottom of which is connected to the a-pillar 3 and the lower bottom of which is connected to the vehicle body side sill 5. Specifically, the third reinforcing plate 11 is attached to one side, facing the inside of the vehicle, of the outer plate of the a-pillar 3 along with the shape, the trapezoidal structure is adopted to improve the connection strength between the cabin upper longitudinal beam 1 and the a-pillar 3, and the vibration attenuation effect is improved.

As a modified embodiment of the third reinforcing plate 11, referring to fig. 14 and 15, the third reinforcing plate 11 has a connecting flange that abuts the a-pillar 3 and the side sill 5. Set up unevenness's additional strengthening on connecting the turn-ups, promote the rigidity of connecting the turn-ups, and then promote the intensity of connecting. Specifically, the third reinforcing plate 11 is connected to the side of the outer panel of the a-pillar 3 facing the inside of the vehicle, and is located between the inner panel of the a-pillar 3 and the outer panel thereof.

In some embodiments, referring to fig. 13, 14 and 15, the connecting flanges form a C-shaped structure with the third reinforcement panel 11 opening into the vehicle. The third reinforcing plate 11 of the box body structure can realize light weight while improving the connection rigidity.

As an alternative embodiment, referring to fig. 9 to 13, 18 and 19, the connecting structure further includes a fourth reinforcing plate 12, and the fourth reinforcing plate 12 is connected to the inner plate of the a-pillar 3 above the third reinforcing plate 11. The fourth reinforcing plate 12 and the third reinforcing plate 11 form a structure similar to a bamboo joint, the overall strength of the position is improved by the aid of the characteristic of high strength of the bamboo joint structure, and further the strength of the connecting position of the longitudinal beam and the A column on the cabin can be improved, so that the vibration energy transmitted to the position is favorably attenuated.

As an alternative embodiment, referring to fig. 12 to 13, 20 and 21, the connecting structure further includes a fifth reinforcing plate 13, and the fifth reinforcing plate 13 connects the third reinforcing plate 11 and the vehicle body side sill 5. Specifically, the fifth reinforcing plate 13 is connected in the C-shaped structure of the third reinforcing plate 11, and plays a role of improving the rigidity of the third reinforcing plate 11. The connection turn-ups about the third reinforcing plate 11 also constitute the structure of similar "bamboo joint" with fifth reinforcing plate 13, utilizes the big characteristics of bamboo joint structural strength to promote this position bulk strength. So far, set up the fourth reinforcing plate 12 of being connected with A post 3 above third reinforcing plate 11, set up the fifth reinforcing plate 13 of being connected with automobile body longeron 5 under 11 inside third reinforcing plate, form dual "bamboo joint" structure, utilize the big characteristics of bamboo joint structural strength to promote this position bulk strength.

Specifically, the fourth reinforcement plate 12 and the fifth reinforcement plate 13 are both located between the inner plate and the outer plate of the a-pillar 3.

The connecting span between the upper longitudinal beam 1 of the engine room and the A column 3 is small, the upper longitudinal beam is usually connected to the middle position of the A column 3, the strength of the A column 3 is only used, and the connecting position is not reinforced by the strength of the lower longitudinal beam 5 of the vehicle body. As an alternative embodiment, referring to fig. 1 to 3, 5, 10 and 23, the connecting structure further includes a sixth reinforcing plate 4, the sixth reinforcing plate 4 is used for connecting the nacelle upper side member 1, the a-pillar 3 and the body lower side member 5, an outer side portion of the second reinforcing plate 8 is connected to the nacelle upper side member 1, and the sixth reinforcing plate 4 is connected to a side of the second side member 87 facing the outside of the vehicle. Through sixth reinforcing plate 4, realize being connected with automobile body longeron 5, borrow the intensity of the 5 big skeletons of automobile body longeron under, can promote the holistic intensity of this hookup location, reduce longeron 1 transmission to 3 vibration sensitivity of A post on the cabin, lay the structure basis for the high travelling comfort of motorcycle type.

Specifically, the sixth reinforcing plate 4 is connected to the front side of the a-pillar outer panel, the lower end of the third reinforcing plate 11 is connected to the body side sill 5, and the upper end of the third reinforcing plate 11 is connected to the nacelle upper side sill 1.

Meanwhile, the cabin upper longitudinal beam 1 and the sixth reinforcing plate 4 form a triangular notch 6 avoiding the second triangular structure 2 at the second reinforcing plate 8, so that the weight is reduced.

Referring to fig. 2 and 5, the sixth reinforcing plate 4 is shown in a broken line and has a triangular shape as a whole. The sixth reinforcing plate is designed into a triangular shape, and the characteristic of high strength of the triangular shape is utilized, so that the strength of the sixth reinforcing plate is improved, and the strength of connection with related parts can be further improved.

As an alternative embodiment, referring to fig. 8, 10 to 12, and 22 to 23, the connecting structure further includes an arch-shaped reinforcing plate 7, the first reinforcing plate 9 is connected to a side of the arch-shaped reinforcing plate 7 facing the inside of the vehicle, the sixth reinforcing plate 4 is connected to a side of the arch-shaped reinforcing plate 7 facing the outside of the vehicle, a lower end of the arch-shaped reinforcing plate 7 is used for connecting the vehicle body side sill 5, a front side of the arch-shaped reinforcing plate 7 forms a first curved surface, a front side of the sixth reinforcing plate 4 forms a second curved surface, and a curvature of the first curved surface is identical to a curvature of the second curved surface.

Referring to fig. 22, the arch-shaped reinforcing plate 7 plays a role in supporting and reinforcing the sixth reinforcing plate 4, the arch-shaped reinforcing plate 7 is designed at the position to be matched with the integral triangular reinforcing plate structure, the strength of the position is improved by utilizing the characteristic of high strength of an arch and a triangle, and meanwhile, the upper longitudinal beam 1 of the cabin is connected with the lower longitudinal beam 5 of the automobile body by the arch-shaped reinforcing plate 7 and the sixth reinforcing plate 4, so that the integral strength of the connection position is improved by utilizing the high skeleton strength of the lower longitudinal beam 5 of the automobile body while the vibration transmission area is increased, the attenuation capacity of the connection structure of the upper longitudinal beam 1 of the cabin and the A column 3 to the road surface and the excitation path of the power assembly is improved, the vibration sensitivity of the cabin transmitted to the A column 3 is reduced, and the structural foundation is laid for high comfort of the automobile. Similarly, referring to fig. 8, 10 to 12, in order to improve the connection reliability, the arched reinforcing plate 7 is provided with an arched flanging 71 corresponding to the first reinforcing plate 9, the sixth reinforcing plate 4 and the vehicle body side sill 5 for increasing the contact area, and the arched flanging 71 is optionally provided with an uneven reinforcing structure for improving the rigidity of the component. It should be noted that, in the drawings, no distinction is made between the arcuate flanges 71.

As an alternative embodiment, referring to fig. 1 to 4, 9 to 12, 16 and 17, the connecting structure further includes a seventh reinforcing plate 10 located above the second reinforcing plate 8 for connecting the a-pillar 3 and the nacelle upper side member 1. The seventh reinforcing plate 10 can enhance the strength of the upper portion of the double triangle. The seventh reinforcing plate 10 connects the upper parts of the double triangles to further increase the connecting strength between the upper parts of the cabin upper longitudinal beam 1 and the A-pillar 3, and the third reinforcing plate 11 connects the lower parts of the double triangles, the sixth reinforcing plate 4 of the overall triangular structure and the vehicle body lower longitudinal beam 5 together to increase the overall strength of the lower part of the cabin upper longitudinal beam 1.

For an alternative embodiment of the second reinforcing plate, referring to fig. 2 to 4, 6 and 7, 9 to 12, 22 and 23, the second reinforcing plate 8 is a bent sheet metal part, a projection shape of the second triangular structure on a first plane forms a right triangle, the first plane is a vertical plane parallel to the front-rear direction of the vehicle body, a projection shape of the first side plate 86 on the first plane forms a straight edge of the right triangle, and a projection shape of the second side plate 87 on the first plane forms a hypotenuse of the right triangle. A post 3 is as basic right-angle side, through bending second reinforcing plate 8, constructs a second triangle-shaped structure 2, when promoting joint strength and vibration attenuation effect, realizes the lightweight of whole car.

In order to improve the reliability of the connection between the second reinforcing plate 8 and the a-pillar 3, referring to fig. 6, 7, and 9 to 12, in this embodiment, the first flange 81 and the second flange 84 are provided to increase the contact area between the second reinforcing plate 8 and the a-pillar 3, so as to improve the reliability of the connection, specifically, the first flange 81 is formed at the end of the first side plate 86 of the second reinforcing plate 8 close to the a-pillar 3; the second side panel 87 of the second reinforcing panel 8 forms a second flange 84 at the end adjacent the a-pillar 3.

Optionally, referring to fig. 6, 7, 9 to 12, the first flange 81 and the second flange 84 extend in a direction away from each other, that is, the first flange 81 extends upward, and the second flange 84 extends downward, so that the strength of the connection can be further improved.

Similarly, referring to fig. 6 and 7, the first side plate 86 and the second side plate 87 further have a third flange 83 attached to the first reinforcing plate 9 on one side facing the inside of the vehicle, so that the connection strength between the second reinforcing plate 8 and the first reinforcing plate 9 can be improved, and the connection strength between the cabin upper longitudinal beam 1 and the a-pillar 3 can be further improved.

Meanwhile, referring to fig. 6 and 7, the third flanges 83 are not required to be continuously arranged along the second reinforcing plate 8, but may be arranged at intervals, so that the weight of the components can be reduced while the connection strength and the vibration attenuation effect are improved, and the purpose of light weight of the whole vehicle is achieved.

In some embodiments, referring to fig. 6 and 7, the side of the first side plate 86 facing the outside of the vehicle further has a fourth flange 82 attached to the upper longitudinal beam 1 of the nacelle. By providing the fourth flange 82, the connection area between the second reinforcing plate 8 and the nacelle upper side member 1 can be increased, and the strength of connection between the two can be improved.

Optionally, an uneven reinforcing structure may be further disposed on the fourth flange 82 to improve the rigidity of the fourth flange 82, so as to improve the connection strength.

Optionally, referring to fig. 6 and 7, the second side panel 87 is provided with a fifth flange 85 connected to the third reinforcing panel 11.

In some embodiments, referring to fig. 6 and 7, an uneven reinforcing structure is arranged on the plate surface at the intersection of the first side plate 86 and the second side plate 87 of the second reinforcing plate 8, so that the stiffness of the second reinforcing plate 8 can be improved, the connection strength between the upper longitudinal beam 1 of the nacelle and the a-pillar 3 can be improved, and the effect of vibration attenuation can be achieved.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Based on the same inventive concept, the embodiment of the application also provides a vehicle, which comprises the connecting structure of the upper longitudinal beam of the cabin and the A-pillar.

The vehicle that this embodiment provided, owing to promoted the joint strength of longeron and A post on the cabin, reduced cabin longeron and transmitted to A post vibration sensitivity, laid the structure basis for the high travelling comfort of motorcycle type.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (10)

1. A connection structure of longeron and A post on cabin, its characterized in that includes:

the first reinforcing plate (9) is provided with a first connecting part (91) used for connecting an upper longitudinal beam (1) of the engine room and a second connecting part (92) used for connecting the A column (3), the upper edge line and the lower edge line of the first connecting part (91) are arranged in an angle mode, and the first reinforcing plate and the A column (3) form a first triangular structure together;

the second reinforcing plate (8) is used for connecting the upper longitudinal beam (1) of the cabin, the A column (3) and the first reinforcing plate (9), the second reinforcing plate (8) comprises a first side plate (86) and a second side plate (87) which are arranged at an angle, and the first side plate (86), the second side plate (87) and the A column (3) jointly form a second triangular structure (2); and

and the third reinforcing plate (11) is positioned below the second reinforcing plate (8) and is used for connecting the A column (3) and the vehicle body lower longitudinal beam (5).

2. The connecting structure of the upper longitudinal beam and the A-pillar of the nacelle according to claim 1, wherein the third reinforcing plate (11) has a trapezoidal structure, the upper bottom of which is connected to the A-pillar (3) and the lower bottom of which is connected to the lower longitudinal beam (5) of the vehicle body.

3. The connecting structure of the upper longitudinal beam and the A-pillar of the nacelle according to claim 1, wherein the third reinforcing plate (11) has a connecting flange that fits the A-pillar (3) and the lower longitudinal beam (5) of the vehicle body.

4. The connecting structure of the upper longitudinal beam and the A-pillar of the nacelle according to claim 3, wherein the connecting flange enables the third reinforcing plate (11) to form a C-shaped structure with an opening facing the inside of the vehicle.

5. The connecting structure of a longitudinal beam and an A-pillar on a nacelle according to claim 1, further comprising a fourth reinforcement plate (12), wherein the fourth reinforcement plate (12) is connected to an inner plate of the A-pillar (3) and is located above the third reinforcement plate (11).

6. The connecting structure of an upper longitudinal beam and an A-pillar of a nacelle according to claim 1, further comprising a fifth reinforcement plate (13), wherein the fifth reinforcement plate (13) connects the third reinforcement plate (11) and the under body longitudinal beam (5).

7. The connecting structure of an upper longitudinal beam and an A-pillar of a nacelle according to any one of claims 1 to 6, further comprising a sixth reinforcing plate (4), wherein the sixth reinforcing plate (4) is used for connecting the upper longitudinal beam (1), the A-pillar (3) and the lower longitudinal beam (5), and the sixth reinforcing plate (4) is connected to the side of the second side plate (87) facing the outside of the vehicle.

8. The connecting structure of the upper longitudinal beam and the A-pillar of the cabin according to claim 7, characterized in that the connecting structure further comprises an arched reinforcing plate (7), the first reinforcing plate (9) is connected to the side, facing the inside, of the arched reinforcing plate (7), the sixth reinforcing plate (4) is connected to the side, facing the outside, of the arched reinforcing plate (7), the lower end of the arched reinforcing plate (7) is used for being connected to the lower longitudinal beam (5), the front side of the arched reinforcing plate (7) forms a first curved surface, the front side of the sixth reinforcing plate (4) forms a second curved surface, and the curvature of the first curved surface is identical to the curvature of the second curved surface.

9. The connecting structure of a nacelle upper longitudinal beam and an a-pillar according to claim 1, further comprising a seventh reinforcement plate (10) located above the second reinforcement plate (8) for connecting the a-pillar (3) and the nacelle upper longitudinal beam (1).

10. A vehicle characterized by comprising the connection structure of the upper nacelle side member and the a-pillar according to any one of claims 1 to 9.

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