SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a trunk assembly of a vehicle, so as to improve the strength of the trunk assembly, reduce the vibration sensitivity, and avoid the road noise energy amplification.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a trunk assembly of a vehicle, comprising: the trunk body is respectively connected with a rear longitudinal beam and a rear cross beam of the vehicle, and is provided with a downward concave containing cavity; the reinforcing beam is arranged on the outer side of the bottom of the trunk body, and at least part of the reinforcing beam extends along the X direction and is fixedly connected with the bottom wall of the accommodating cavity; the first reinforcing piece is arranged at the bottom of the trunk body and connected between the rear cross beam and the reinforcing beam, and the first reinforcing piece and the trunk body are arranged at intervals.
According to some embodiments of the present invention, the first reinforcement includes a first section and a second section connected in series, one end of the first section is connected to the reinforcement beam, the other end of the first section is connected to an end of the second section, and the other end of the second section is connected to the rear cross member.
According to some embodiments of the utility model, the reinforcement beam comprises: the reinforcing beam main body is attached to the outer peripheral wall of the accommodating cavity; the first bulge part extends from one end of the reinforcing beam main body to the other end of the reinforcing beam main body and bulges from the reinforcing beam main body to the side far away from the trunk body, and the first bulge part is connected with the first section so as to enable the first section and the bottom wall of the accommodating cavity to be arranged at intervals.
According to some embodiments of the utility model, a projected extension direction of the first stiffener and a projected extension direction of the rear side member are parallel to each other in a projection in the Z direction.
According to some embodiments of the utility model, the first reinforcing member is a plurality of reinforcing members, and the plurality of reinforcing members are arranged at intervals in the X direction.
According to some embodiments of the utility model, the first section is provided with an extension section, the extension section protrudes from the reinforcing beam from the end part of the first section to the side far away from the second section, and the first reinforcing member further comprises a counterweight part, and the counterweight part is arranged on the extension section and is spaced from the trunk body.
According to some embodiments of the utility model, further comprising a second stiffener disposed within the receiving cavity and disposed on the bottom wall.
According to some embodiments of the utility model, the second stiffener comprises: a stiffener body at least partially conforming to the bottom wall; and a second raised portion raised from the reinforcement body to a side away from the bottom wall.
According to some embodiments of the utility model, the reinforcement body is provided with a through hole, and the second reinforcement further comprises a vibration reduction portion embedded in the through hole.
Compared with the prior art, the trunk assembly has the following advantages:
in the trunk assembly, through setting up the first reinforcement of relative trunk body suspension to first reinforcement supports between stiffening beam and rear cross beam, thereby can reduce vibration sensitivity when promoting trunk assembly intensity, avoids enlargeing the way noise energy.
Further, a weight portion suspended from the trunk body is provided at an end portion of the first reinforcement, and a simple vibration damping structure is formed by the weight portion, thereby damping vibration energy transmitted to the position (i.e., the first reinforcement end portion).
Be provided with the second reinforcement in the trunk assembly, the second reinforcement can be used for promoting the structural strength of trunk body, and the second reinforcement is provided with damping portion simultaneously, and damping portion can absorb the road surface excitation vibration energy of transmission to the diapire that holds the chamber, suppresses the panel beating radiation noise that road surface excitation vibration produced effectively, reduces vehicle internal noise, promotes user's riding comfort.
Another object of the utility model is to propose a vehicle.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a vehicle comprises the trunk assembly.
The vehicle and the trunk assembly have the same advantages compared with the prior art, and the detailed description is omitted.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The utility model will be described in detail below with reference to the accompanying figures 1-6, in conjunction with an embodiment.
A trunk assembly 100 of a vehicle according to an embodiment of the present invention includes: a trunk body 10, a reinforcing beam 20, and a first reinforcement 30.
As shown in fig. 1, a trunk body 10 is connected to a rear side member 101 and a rear cross member 102 of a vehicle, respectively, and the trunk body 10 is provided with a receiving cavity 10a recessed downward, the receiving cavity 10a being formed with a receiving space that can be used to receive and store articles. Wherein the rear cross member 102 may be a seat rear cross member.
Referring further to fig. 1, a reinforcement beam 20 is provided at the bottom of the trunk body 10, and at least a portion of the reinforcement beam 20 extends in the X-direction and is fixedly connected to the bottom wall 11 of the accommodating chamber 10 a. The reinforcing beam 20 is connected to the outer peripheral wall (i.e., a side wall surface not used for storing articles) of the trunk body 10, so that the volume of the storage space of the accommodating chamber 10a can be secured, and the structural strength of the trunk body 10 can be improved.
The trunk assembly 100 is further provided with a first reinforcement 30, the first reinforcement 30 is provided at the bottom of the trunk body 10, and the first reinforcement 30 is connected between the rear cross member 102 and the reinforcement beam 20, and the first reinforcement 30 is provided at a distance from the trunk body 10, so that the structural strength of the trunk assembly 100 can be further improved by the first reinforcement 30.
Wherein the first reinforcement 30 is fixed in the trunk assembly 100 by being connected to the reinforcement beam 20 and the rear cross member 102, and the first reinforcement 30 is arranged in a suspended manner with respect to the trunk body 10, the vibration sensitivity of the trunk assembly 100 can be reduced by the first reinforcement 30, and the road noise energy amplification can be avoided, thereby improving the riding comfort of the occupant in the vehicle.
According to the trunk assembly 100 provided by the embodiment of the utility model, the structural strength of the trunk body 10 is improved through the reinforcing beam 20, and the structural strength of the trunk assembly 100 is further improved through the arrangement of the first reinforcing piece 30, and meanwhile, the vibration sensitivity of the trunk assembly 100 is reduced, the road noise energy amplification is avoided, and the driving experience of a user is improved.
As shown in fig. 1, in some embodiments of the present invention, the first reinforcement 30 includes a first section 31 and a second section 32 connected in series, one end of the first section 31 is connected to the reinforcement beam 20, the other end of the first section 31 is connected to an end of the second section 32, and the other end of the second section 32 is connected to the rear cross member 102. At this time, connecting lines between the connecting point of the first section 31 and the reinforcing beam 20, the connecting point of the first section 31 and the second section 32, and the connecting point of the second section 32 and the rear cross beam 102 are triangular, and the triangular structure has good stability, so that the connection reliability of the trunk body 10, the reinforcing beam 20, and the rear cross beam 102 is improved, and the structural strength of the trunk assembly 100 is improved.
In some alternative embodiments of the utility model, the angle between the direction of extension of the first section 31 and the direction of extension of the second section 32 is α, and the relationship 60 ≦ α ≦ 135.
In some embodiments of the present invention, the first section 31 is connected to the trunk body 10 through the reinforcement beam 20, and the first section 31 is disposed spaced apart from the bottom wall 11 of the receiving chamber 10 a. Preferably, the first section 31 is disposed parallel to the bottom wall 11 of the accommodating cavity 10a, so that the interference of the first section 31 with the accommodating cavity 10a can be avoided, and the strength of the trunk assembly 100 in the Y direction can be improved.
As shown in fig. 1 and 5, in some embodiments of the present invention, the reinforcement beam 20 includes: the reinforcing beam main body 21 and the first bulge part 22, the reinforcing beam main body 21 is attached to the peripheral wall of the accommodating cavity 10a, so that the reliability of connection between the reinforcing beam 20 and the trunk body 10 is improved. The first raised portion 22 is provided at the middle portion of the reinforcement beam main body 21 in the front-rear direction, and the first raised portion 22 extends from one end to the other end of the reinforcement beam main body 21 and is raised from the reinforcement beam main body 21 to the side away from the trunk body 10, and the first raised portion 22 is connected to the first section 31 to space the first section 31 from the bottom wall 11 of the accommodating chamber 10 a.
It is understood that the structural strength of the reinforcement beam 20 can be further improved by providing the first raised portion 22 on the reinforcement beam main body 21, and the first section 31 of the first reinforcement 30 is connected to the reinforcement beam main body 21 through the first raised portion 22, so that the first section 31 can be vertically spaced from the bottom wall 11 of the accommodating chamber 10a, the first reinforcement 30 is prevented from contacting the trunk body 10, and the first reinforcement 30 is suspended with respect to the trunk body 10.
In some embodiments of the present invention, the reinforcing beam main body 21 has a U-shape, the reinforcing beam main body 21 is in fit engagement with the bottom wall 11 of the accommodating chamber 10a and two opposite side walls in the X direction, and the first raised portion 22 extends from one end to the other end of the reinforcing beam main body 21 of the U-shaped structure, so that the structural strength of the reinforcing beam 20 itself can be ensured, and the strength of the trunk body 10 in the X direction and the Z direction can be improved by the reinforcing beam 20.
In some embodiments of the present invention, an end of the second section 32 away from the first section 31 is provided with a connecting plate 321, the connecting plate 321 is folded forward from an end of the second section 32, and the connecting plate 321 is adapted to fit snugly against a lower surface of the rear cross member 102 to fixedly connect the second section 32 to the rear cross member 102 through the connecting plate 321.
In some embodiments of the present invention, as shown in fig. 4, the projected extension direction of the first reinforcement 30 and the projected extension direction of the rear side member 101 are parallel to each other in the projection in the Z direction, so that the structural strength of the trunk assembly 100 can be improved by the first reinforcement 30,
it is understood that the first reinforcement 30 is fixed to the trunk assembly 100 by the reinforcement beam 20 and the rear cross member 102, and both the reinforcement beam 20 and the rear cross member 102 extend in the X direction and are perpendicular to the rear side member 101 extending in the Y direction in the Z-direction projection. When the first reinforcement 30 is arranged in parallel with the rear side member 101 in the Z-direction projection, the first reinforcement 30 can be better supported and connected between the reinforcement beam 20 and the rear cross member 102 to improve the structural strength of the trunk assembly 100.
Further, since the first reinforcement 30 is supported between the reinforcement beam 20 and the rear cross member 102 in a triangular shape, and the first reinforcement 30 extends in the Y direction in the Z-direction projection, the connection strength between the trunk body 10 and the rear cross member 102 can be improved by the first reinforcement 30, the vibration sensitivity of the trunk assembly 100 is reduced, and the road noise energy is prevented from being amplified.
As shown in fig. 1, in some embodiments of the present invention, the first reinforcing member 30 is provided in plurality, and the plurality of first reinforcing members 30 are arranged at intervals in the X direction, so that the structural strength of the trunk assembly 100 can be further improved.
Specifically, referring to fig. 4, the first reinforcements 30 are two, and each of the two first reinforcements 30 is connected between the reinforcement beam 20 and the rear cross member 102 and arranged at intervals in the X direction of the vehicle. The two first reinforcements 30 are equally spaced from the rear side member 101 disposed adjacent to the two first reinforcements, that is, the distance from the first reinforcement 30 located on the left side to the rear side member 101 on the left side is equal to the distance from the first reinforcement 30 located on the right side to the rear side member 101 on the right side.
As shown in fig. 5, in some embodiments of the present invention, the end of the first segment 31 is provided with an extension 311, the extension 311 protrudes from the reinforcement beam 20 from the end of the first segment 31 to the side away from the second segment 32, and the extension 311 is spaced from the reinforcement beam 20 in the vertical direction, i.e. the extension 311 is suspended relative to the reinforcement beam 20. The first reinforcement 30 further includes a weight portion 33, and the weight portion 33 is provided on the extension 311 and spaced apart from the trunk body 10, so that the weight portion 33 can be suspended with respect to the trunk body 10, and a simple harmonic vibration damping structure is formed at an end portion of the first reinforcement 30. When vibration is transmitted to the extension 311 of the first section 31, the vibration energy may be attenuated by the suspended weight 33.
Referring to fig. 5, the first section 31 extends in the front-rear direction, and one end of the first section 31 is connected to the second section 32, the other end of the first section 31 extends rearward and protrudes the first rising portion 22, the weight is provided at the extending section 311, and the weight portion 33 extends from the first section 31 to the trunk body 10 side and is provided at an interval from the trunk body 10.
The weight 33 may be disposed at any position of the extension 311, such as: an end of the extension 311 away from the first section 31, a middle position of the extension 311, and the like, that is, the weight 33 may be suspended from the reinforcing beam 20 and the trunk body 10.
In some embodiments of the present invention, the trunk assembly 100 further includes a second reinforcement 40, the second reinforcement 40 being disposed in the accommodation chamber 10a and disposed on the bottom wall 11, the second reinforcement 40 may serve to improve the structural strength of the accommodation chamber 10 a.
It can be understood that if the second reinforcing member 40 is disposed at the bottom of the accommodating chamber 10a, the second reinforcing member 40 is liable to interfere with the first reinforcing member 30, which affects the suspension effect of the first reinforcing member 30 with respect to the trunk body 10, and the structural strength at the accommodating chamber 10a and the upward or downward deformation resistance of the bottom wall 11 of the accommodating chamber 10a can be improved by the reinforcing beams 20 and the second reinforcing member 40 disposed at the inner and outer sides of the accommodating chamber 10 a.
In a further embodiment of the utility model, as shown in fig. 2, the second stiffener 40 comprises: the reinforcing member main body 41 and the second raised part 42, at least part of the reinforcing member main body 41 is attached to the bottom wall 11, so as to improve the connection reliability of the second reinforcing member 40 and the bottom wall 11, improve the structural strength of the bottom wall 11, and improve the bearing capacity of the accommodating cavity 10 a.
Further, the second raised part 42 is raised from the reinforcement main body 41 to the side away from the bottom wall 11, and forms a cavity with the bottom wall 11, so that the structural strength of the bottom wall 11 can be further improved, and the bearing capacity of the accommodating chamber 10a can be improved.
As shown in fig. 2, in some embodiments of the present invention, the reinforcement body 41 is provided with a through hole penetrating the reinforcement body 41 in the thickness direction, and the second reinforcement 40 further includes a vibration damping portion 43, the vibration damping portion 43 being embedded in the through hole, the vibration damping portion 43 having a good vibration damping performance.
When the vibration energy is transmitted to the vibration damping portion 43, the vibration damping portion 43 can attenuate the vibration energy, and the metal plate radiation noise generated by the road excitation vibration can be effectively inhibited, so that the noise in the vehicle is reduced, and the riding comfort of passengers in the vehicle is improved.
As shown in fig. 3, in some embodiments of the present invention, the reinforcement main body 41 is configured to be an "i" shaped structure, the through hole is disposed in the middle of the reinforcement main body 41, the second raised portion 42 is two segments, and the two segments of the second raised portion 42 are disposed on two sides of the through hole respectively, so as to ensure the structural strength of the second reinforcement 40, and the through hole can reduce the weight of the second reinforcement 40, thereby meeting the design requirement of light weight.
In some embodiments of the present invention, the vibration damping portion 43 includes: the vibration absorber comprises a rubber part and a vibration reduction sheet, wherein the vibration reduction sheet is embedded in the rubber part to form a vibration absorber structure, so that the energy transmitted to the bottom wall 11 of the accommodating cavity 10a by the road excitation vibration can be absorbed through the vibration reduction part 43, and the sheet metal radiation noise generated by the road excitation vibration is effectively inhibited. Wherein the rubber member is connected with the reinforcement body 41 by vulcanization, and the number and mass of the damping pieces can be adjusted according to design requirements to form a multiple frequency vibration absorber structure.
It is understood that the number of the second reinforcing members 40 is plural, the plural second reinforcing members 40 are arranged at intervals in the bottom wall 11 of the accommodating chamber 10a, and the mass of the damping sheet in the damping portion 43 of each second reinforcing member 40 may be different, so as to meet the requirement of absorbing vibration at multiple frequencies, and improve the damping capacity of the second reinforcing members 40 for vibration energy.
According to the vehicle of the embodiment of the utility model, the vehicle includes the trunk assembly 100 described above.
In the trunk assembly 100, by providing the first reinforcement 30 suspended from the trunk body 10 and supporting the first reinforcement 30 between the reinforcement beam 20 and the rear cross member 102, it is possible to reduce the vibration sensitivity while improving the strength of the trunk assembly 100 and to avoid the road noise energy from being amplified.
Further, by providing a weight 33 suspended from the trunk body 10 at the end of the first reinforcement 30, a simple harmonic vibration damping structure is formed by the weight 33, and vibration energy transmitted to the position (i.e., the end of the first reinforcement 30) is damped.
The trunk assembly 100 is further provided with a second reinforcing member 40, the second reinforcing member 40 can be used for improving the structural strength of the trunk body 10, meanwhile, the second reinforcing member 40 is provided with a vibration damping portion 43, and the vibration damping portion 43 can absorb the road excitation vibration energy transmitted to the bottom wall 11 of the accommodating cavity 10a, so that the sheet metal radiation noise generated by the road excitation vibration is effectively inhibited, the noise in the vehicle interior is reduced, and the riding comfort of a user is improved.
Thus, by providing the trunk assembly 100 as described above, the structural strength of the trunk assembly 100 can be improved, and the problem of vibration due to road excitation can be effectively reduced, thereby improving the riding comfort of the passenger.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.