Engine compartment decorative cover mounting structure and vehicle
Technical Field
The invention relates to a vehicle body structure, in particular to an engine compartment decorative cover mounting structure and a vehicle.
Background
With the high-speed development of the automobile industry, automobiles are gradually changed into intelligent moving spaces from simple transportation means in the past, the quality demands of customers on the automobiles are increasingly improved, cabin decorative covers are used as important components in engine cabins of the automobiles, the engine cabins are often messy due to the fact that the number of parts arranged in the engine cabins is large, and in order to enable the engine cabins to be more regular and tidy, cabin decorative covers are often needed to be added on the upper parts of the engines. The traditional engine cabin decoration cover is connected with the mounting bracket through the rubber pad, the mounting bracket is directly connected with the engine, engine excitation can be transmitted to the engine decoration cover through the mounting bracket, the mounting bracket is caused to resonate, the engine cabin decoration cover is caused to shake, abnormal sound, even the bracket is broken and other problems, the quality of the whole automobile is affected, and poor driving experience is brought to customers.
Disclosure of Invention
In view of the above, the invention aims to provide an engine cabin decorative cover mounting structure and a vehicle, which can improve the NVH performance of the whole vehicle, improve the driving experience of customers, improve the overall rigidity and strength of cabin areas and ensure the safety of the vehicle and drivers.
The invention relates to an engine compartment decoration cover mounting structure which comprises a front end frame, an engine compartment decoration cover, a damping tower package reinforcing beam and a mounting assembly, wherein the front part of the mounting assembly is connected with the front end frame, the rear part of the mounting assembly is connected with the damping tower package reinforcing beam, the left side and the right side of the damping tower package reinforcing beam are used for being connected with a vehicle body damping tower package, and the engine compartment decoration cover is detachably mounted on the mounting assembly.
Further, the mounting assembly comprises two mounting brackets, the two mounting brackets are arranged at intervals along the left-right direction, each mounting bracket comprises a bracket main body and a supporting seat arranged at the rear side of the bracket main body, the front part of the bracket main body is connected with the front end frame, and the supporting seats are connected with the reinforcing cross beam of the shock absorber tower bag.
Further, one or more ball head mounting seats are arranged in the middle of the support main body, rubber vibration isolators are respectively arranged at positions of the engine cabin decorative cover corresponding to the ball head mounting seats, and the rubber vibration isolators are respectively connected with the ball head mounting seats.
Further, vibration isolation pad installation seats corresponding to the rubber vibration isolation pads in number are arranged on the engine compartment decoration cover, each vibration isolation pad installation seat comprises a reinforcing supporting rib, a supporting portion and an installation portion, the reinforcing supporting ribs are located on the upper side of the supporting portion, the installation portion is located on the lower side of the supporting portion, the installation portion is provided with a through hole and a plurality of slots, the axis of the through hole is in the vertical direction, the opening directions of the slots are perpendicular to the axis of the through hole, the upper portions of the rubber vibration isolation pads are respectively clamped into the corresponding slots of the vibration isolation pad installation seats, and the lower portions of the rubber vibration isolation pads extend out of the through holes.
Further, the support base comprises a connecting portion, a first flanging and a second flanging, the bottoms of the first flanging and the second flanging are respectively connected with the left side and the right side of the connecting portion, the tops of the first flanging and the second flanging are respectively connected with the left side and the right side of the support body, and crumple guide holes are formed in the middle of the first flanging and the middle of the second flanging.
Further, all be provided with first mounting hole on the connecting portion, be provided with on the shock absorber tower package entablature be used for with the second mounting hole that first mounting hole is connected.
Further, a plurality of third mounting holes for connecting with the vehicle body damping tower bags are respectively arranged at the left part and the right part of the damping tower bag reinforcing beam, and a plurality of reinforcing ribs are arranged in the inner cavity of the damping tower bag reinforcing beam at intervals along the front-back direction.
Further, the inside of support main part is equipped with the cavity, the front portion of support main part forms flat connecting portion through clapping processing, be provided with the fourth mounting hole on the flat connecting portion, be provided with on the front end frame be used for with fourth mounting hole complex fifth mounting hole.
Further, the spacing between the two mounting brackets increases from front to back.
The vehicle comprises the engine cabin decorative cover mounting structure.
The beneficial effects of the invention are as follows:
(1) The front end frame, the engine cabin decorative cover, the damping tower package reinforcing beam, the mounting assembly and other mounting structures are not directly connected with the engine, engine excitation is prevented from being directly transmitted to the mounting assembly and the engine cabin decorative cover, risks of abnormal shake, abnormal sound and structural fracture of the engine cabin decorative cover are reduced, and therefore NVH performance of the whole automobile can be improved, and driving experience of customers is improved.
(2) The left side and the right side of the damping tower bag reinforcing beam are connected with the vehicle body damping tower bag, so that the rigidity of the peripheral structure of the vehicle body damping tower bag can be obviously improved, the front end frame, the damping tower bag reinforcing beam and the mounting assembly are connected to form a frame structure, the integral rigidity and the strength of a cabin area can be improved, and the safety of vehicles and drivers and passengers can be ensured.
(3) According to the invention, the connection form of the support seat and the support body and the crumple guide hole on the support seat can be used for dispersing the collision force received by the front end frame to the two support bodies when the vehicle collides in a front or offset manner, the collision force is transmitted to the support seat through the two support bodies, and deformation and crumple energy absorption are generated at the connection position of the support seat and the connection body, so that the whole energy absorption effect of a cabin area is improved.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic view of an engine compartment trim cover mounting structure of the present invention;
FIG. 2 is a schematic cross-sectional view of an engine nacelle trim cover mounting structure of the present invention;
FIG. 3 is a schematic top view of the nacelle trim cover mounting structure of the present invention (with the nacelle trim cover hidden);
FIG. 4 is a schematic view of the front end frame of the present invention;
FIG. 5 is a schematic bottom view of the engine compartment trim cover of the present invention;
FIG. 6 is a schematic view of the engine compartment trim cover of the present invention (with rubber vibration isolator installed);
FIG. 7 is a schematic view of the engine compartment trim cover of the present invention (without rubber vibration isolator installed);
FIG. 8 is a schematic view of the reinforcement beam of the shock tower package of the present invention;
fig. 9 is a schematic structural view of the mounting bracket of the present invention.
The figures are marked as follows:
1-a front end frame, 11-a fifth mounting hole;
2-engine room decorative cover, 21-rubber vibration isolator, 22-vibration isolator mounting seat, 221-reinforced supporting rib, 222-supporting part, 223-mounting part, 2231-via hole, 2232-slot;
3-a damping tower package reinforcing beam, 31-a second mounting hole, 32-a third mounting hole and 33-a reinforcing rib;
4-mounting bracket, 41-bracket body, 411-ball head mounting seat, 412-flat connecting part, 413-fourth mounting hole, 42-supporting seat, 421-connecting part, 422-first flanging, 423-second flanging, 424-collapsing guide hole and 425-first mounting hole.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 9, an engine room decorative cover mounting structure in this embodiment includes a front end frame 1, an engine room decorative cover 2, a shock tower package reinforcing beam 3, and a mounting assembly, the front portion of the mounting assembly is connected to the front end frame 1, the rear portion of the mounting assembly is connected to the shock tower package reinforcing beam 3, the left and right sides of the shock tower package reinforcing beam 3 are used for connection with a vehicle body shock tower package, and the engine room decorative cover 2 is detachably mounted on the mounting assembly.
Front end frame 1, engine cabin decorate cover 2, shock absorber tower package entablature 3 and mounting assembly etc. mounting structure and not directly link to each other with the engine, prevent that the engine excitation from directly transmitting to mounting assembly and engine cabin decorate cover 2 on, reduce engine cabin and decorate cover 2 unusual shake, abnormal sound and the cracked risk of structure to can promote whole car NVH performance, promote customer and drive and take advantage of experience. NVH refers to Noise, vibration, harshness, namely noise, vibration and harshness. And, the left and right sides and the automobile body shock tower package of shock tower package entablature 3 are connected, can show the rigidity that promotes the peripheral structure of automobile body shock tower package, and front end frame 1, shock tower package entablature 3 and installation component connect and form frame construction, can improve cabin regional overall rigidity and intensity, guarantee vehicle and driver and passenger safety.
In this embodiment, the mounting assembly includes two mounting brackets 4, where the two mounting brackets 4 are disposed at intervals along a left-right direction, and the two mounting brackets 4 each include a bracket body 41 and a support seat 42 disposed on a rear side of the bracket body 41, where a front portion of the bracket body 41 is connected to the front end frame 1, and the support seat 42 is connected to the shock tower package reinforcement beam 3.
The spacing between the two mounting brackets 4 prevents shielding of the engine and facilitates handling of the engine during assembly and after-market maintenance. The supporting seat 42 is used for raising the height of the rear side of the bracket main body 41, so that the bracket main body 41 is in a horizontal state, namely, the heights of the positions of the bracket main body 41 in the up-down direction are not greatly changed, and the flatness of the installation of the engine decorative cover can be considered on the premise of ensuring the collision energy absorption performance.
In this embodiment, one or more ball mounting seats 411 are disposed in the middle of the bracket main body 41, and rubber vibration isolators 21 are disposed at positions of the engine compartment decoration cover 2 corresponding to the ball mounting seats 411, where the rubber vibration isolators 21 are connected to the ball mounting seats 411. Two ball mounting seats 411 can be respectively arranged in the middle of the two bracket main bodies 41, and four rubber vibration isolators 21 are correspondingly arranged on the engine compartment decoration cover 2. The ball mounting seat 411 can be convenient for assemble, and the rubber vibration isolator 21 can be connected with the ball mounting seat 411 and vibration-isolated, further prevents that engine excitation from directly transmitting to the installation component and on the engine compartment decoration cover 2, further reduces the unusual shake of engine compartment decoration cover 2, abnormal sound and the cracked risk of structure to can further promote whole car NVH performance.
In this embodiment, the engine compartment decoration cover 2 is provided with vibration isolator mounts 22 corresponding to the number of the rubber vibration isolators 21, the vibration isolator mounts 22 include reinforcing support ribs 221, support portions 222 and mounting portions 223, the reinforcing support ribs 221 are located on the upper sides of the support portions 222, the mounting portions 223 are located on the lower sides of the support portions 222, the mounting portions 223 are provided with through holes 2231 and a plurality of slots 2232, the axis of the through holes 2231 is along the up-down direction, the opening directions of the plurality of slots 2232 are perpendicular to the axis of the through holes 2231, the upper portions of the respective rubber vibration isolators 21 are respectively clamped into the corresponding slots 2232 of the vibration isolator mounts 22, and the lower portions of the respective rubber vibration isolators 21 extend out of the through holes 2231.
The opening direction of the slot 2232 of the vibration isolator mounting seat 22 is perpendicular to the axis of the via 2231, and the rubber vibration isolator 21 is mounted in the vibration isolator mounting seat 22 from the side during mounting, so that the assembly is simple and convenient, and the stress direction of the rubber vibration isolator 21 is different from the opening direction of the slot 2232, so that the rubber vibration isolator 21 is not easy to fall off. The support portion 222 and each slot 2232 can provide support for the rubber vibration isolator 21, and the reinforcing support ribs 221 can provide support for the support portion 222 and increase the overall strength of the vibration isolator mount 22, thereby providing reliable support for the rubber vibration isolator 21.
In this embodiment, the support seat 42 includes a connection portion 421, a first flange 422 and a second flange 423, bottoms of the first flange 422 and the second flange 423 are respectively connected to left and right sides of the connection portion 421, and tops of the first flange 422 and the second flange 423 are respectively connected to left and right sides of the bracket body 41. In this embodiment, the middle parts of the first flange 422 and the second flange 423 are provided with a crumple guide hole 424.
A groove into which the bracket body 41 is inserted is formed between the first flange 422 and the second flange 423, and the support seat 42 and the bracket body 41 may be connected by welding. The connection form of the supporting seat 42 and the support main body 41 and the crumple guide hole 424 on the supporting seat 42 can be used for dispersing the collision force received by the front end frame 1 to the two support main bodies 41 when the vehicle collides with the front surface or is in offset collision, the collision force is transmitted to the supporting seat 42 through the two support main bodies 41, deformation and crumple energy absorption are generated at the connection position of the supporting seat 42 and the connection main body, and the whole energy absorption effect of a cabin area is improved.
In this embodiment, the connecting portions 421 are provided with first mounting holes 425, and the shock tower package reinforcing beam 3 is provided with second mounting holes 31 for connecting with the first mounting holes 425. The first mounting hole 425 and the second mounting hole 31 are coupled by bolts.
In the embodiment, a plurality of third mounting holes 32 for connecting with a vehicle body shock tower package are respectively arranged at the left part and the right part of the shock tower package reinforcing beam 3, and a plurality of reinforcing ribs 33 are arranged in the inner cavity of the shock tower package reinforcing beam 3 at intervals along the front-rear direction. The number of the third mounting holes 32 may be three, and the three third mounting holes 32 may be distributed in a triangle shape. The reinforcing ribs 33 in the damping tower bag reinforcing beam 3 can increase the strength and rigidity of the damping tower bag reinforcing beam 3, and further improve the rigidity of the vehicle body damping tower bag peripheral structure.
In this embodiment, a cavity is formed in the bracket main body 41, a flat connection portion 412 is formed by flattening the front portion of the bracket main body 41, a fourth mounting hole 413 is formed in the flat connection portion 412, and a fifth mounting hole 11 for matching with the fourth mounting hole 413 is formed in the front end frame 1. The fourth mounting hole 413 and the fifth mounting hole 11 are coupled by bolts. The bracket body 41 has a hollow cavity to form a hollow beam body, and the strength and the weight reduction of the bracket body 41 are both considered. The flat connection portion 412 is connected with the front end frame 1, the supporting seat 42 is connected with the shock tower bag reinforcing beam 3, the flat connection portion 412 is used for reducing the height of the front side of the support main body 41, the supporting seat 42 is used for lifting the height of the rear side of the support main body 41, the support main body 41 is guaranteed to be in a horizontal state, namely, the heights of the positions of the support main body 41 in the up-down direction are not greatly changed, and accordingly the flatness of the installation of the engine decorative cover can be guaranteed under the premise of guaranteeing collision energy absorption performance.
In this embodiment, the distance between the two mounting brackets 4 increases gradually from front to back, and the two mounting brackets 4 are in a structure similar to an isosceles trapezoid, so that the overall rigidity and strength of the cabin area can be improved, and the safety of vehicles and drivers can be ensured.
The vehicle in the embodiment comprises the engine compartment trim cover mounting structure.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.