CN219406613U - Automobile body top cap front cross beam and car - Google Patents

Abstract

The utility model provides a front cross beam of a vehicle body top cover and an automobile, the front cross beam of the vehicle body top cover comprises a plate-shaped front cross beam main body, wherein reinforcing pits which are arranged in a concave manner along the up-down direction of the whole automobile are arranged on the front cross beam main body, and the reinforcing pits extend along the length direction of the front cross beam main body; the side that strengthens the pit and is close to the locomotive is equipped with along the protruding first triangle-shaped of whole car upper and lower direction upwards, simultaneously, the side that strengthens the pit and is close to the tail is equipped with along the arch recess of whole car fore-and-aft direction backward arch, and first triangle-shaped arch and arch recess all are located the middle part that strengthens pit length direction. The front cross beam of the vehicle body top cover can effectively strengthen the structural strength of the middle weak position, reduce the vibration response sensitivity and improve the NVH performance of the whole vehicle.

Description

Automobile body top cap front cross beam and car

Technical Field

The utility model relates to the technical field of automobiles, in particular to a front cross beam of a top cover of an automobile body. The utility model also relates to an automobile provided with the front cross beam of the automobile body top cover.

Background

Along with the continuous improvement of technological development and the living standard of people, the requirements of people on the quality of automobiles are also higher and higher. NVH (Noise, vibration, harshness; noise, vibration and harshness) characteristics are one of the most surface and direct experiences of users on automobiles, and are one of the comprehensive problems of high attention of the automobile industry and related automobile parts industries.

At present, under the background of rapid development of new energy automobile technology, related technologies of hybrid automobiles are also under continuous development, and the hybrid automobiles are more excellent in acceleration performance due to the fact that motor driving is added on the basis of traditional fuel automobiles, but vibration excitation energy is larger, resonance of automobile body structures is easily excited, and then the problem of vibration and booming in the automobiles is caused, for example, when the automobiles run, the vibration excitation energy generated by uneven road surfaces or gas friction on the automobile bodies can excite automobile roof plate members to vibrate to generate noise. The mode of reinforcing the roof panel of the automobile to reduce the vibration response is an important control means for optimizing the noise in the automobile.

In the prior art, the top cover front beam is used as an important component of the automobile top cover plate, and the optimization scheme is generally two, namely, the top cover front beam is designed into a single reinforcing plate structure, the structure is simple in the scheme, but the problems of poor strength, high vibration response sensitivity and the like exist, and the top cover front beam is designed into a box-shaped structure formed by combining two reinforcing plates, and the structure is high in strength, but the structure is more complex and the weight is larger in the structural optimization mode. Therefore, the two preferable schemes are difficult to meet the design requirements of optimizing noise in the vehicle and improving NVH performance of the whole vehicle on the premise of ensuring light weight.

Disclosure of Invention

In view of the above, the present utility model aims to provide a front cross member of a vehicle body roof, which can improve its structural strength and reduce its vibration response sensitivity while ensuring a light weight of the front cross member of the roof.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a front cross member of a vehicle body roof includes a plate-shaped front cross member main body;

the front beam main body is provided with reinforcing pits which are concavely arranged along the up-down direction of the whole vehicle, and the reinforcing pits extend along the length direction of the front beam main body;

the side that strengthens the pit and is close to the locomotive is equipped with along the first triangle-shaped arch of whole car upper and lower direction upwards convex, and/or the side that strengthens the pit and be close to the tail is equipped with along the arch recess of whole car fore-and-aft direction backward arch, just first triangle-shaped arch with arch recess all is located strengthen pit length direction's middle part.

Further, the front beam main body is arched forwards along the front-rear direction of the whole car at the edge close to the car head side and the edge close to the car tail side, and the ratio between the sagittal height h of the edge close to the car head side of the front beam main body and the chord length k is different from the ratio between the sagittal height h of the edge close to the car tail side of the front beam main body and the chord length k.

Further, the ratio of the sagittal height h of the edge of the front beam main body close to the vehicle head side to the chord length k is 0.04, and the ratio of the sagittal height h of the edge of the front beam main body close to the vehicle tail side to the chord length k is 0.13; and/or the plate thickness of the front beam main body is between 0.6 and 0.8 mm.

Further, a second triangular bulge is arranged at the front side edge of the front cross beam main body, the second triangular bulge protrudes forwards along the front-back direction of the whole vehicle, and the second triangular bulge is arranged at two ends close to the front cross beam main body.

Further, the second triangular protrusions near the two ends of the front beam main body are a plurality of protrusions arranged at intervals along the length direction of the front beam main body.

Further, the bottom of strengthening the pit is equipped with along whole car upper and lower direction upwards convex square protruding to and along whole car upper and lower direction indent arrangement's square recess, square protruding with square recess is followed strengthen the length direction of pit and set up in turn, and connect gradually together.

Further, the front beam comprises connecting plates positioned at the left side and the right side of the front beam body, the connecting plates at the two sides are respectively used for connecting the front beam body with the upper longitudinal beam of the vehicle body at the corresponding side, and the structures of the connecting plates at the two sides are the same.

Further, a first reinforcing part downwards arched along the up-down direction of the whole vehicle is arranged on one side, close to the vehicle head, of the connecting plate, and a second reinforcing part downwards arched along the up-down direction of the whole vehicle is arranged on one side, close to the vehicle tail, of the connecting plate; the first reinforcing part and the second reinforcing part are both positioned at one end of the connecting plate, which is close to the upper longitudinal beam of the vehicle body, and the extending lengths of the first reinforcing part and the second reinforcing part in the left-right direction of the whole vehicle are different.

Further, at least one of square pits and elliptical pits which are concavely arranged along the up-down direction of the whole car are arranged on the connecting plate; and/or at least one of a trapezoid lightening hole and a rectangle lightening hole is arranged on the connecting plate.

Compared with the prior art, the utility model has the following advantages:

according to the front cross beam of the vehicle body top cover, the structural strength of the middle weak position of the front cross beam main body can be improved through the arrangement of the reinforcing pits, and the structural strength of the middle position of the reinforcing pits can be improved based on the characteristics of high triangle stability and high arch structural strength respectively through the arrangement of the first triangular protrusions and the arch grooves in a matched mode, so that the structural strength of the front cross beam main body is further improved, the vibration response sensitivity is reduced, and the front cross beam main body is designed into a plate shape, so that the overall light weight of the front cross beam of the vehicle body top cover can be ensured, and a good using effect can be achieved.

In addition, through all arch forward the setting with the front and back side edge of front beam main part, can utilize the big characteristics of arch intensity to promote the holistic structural strength of front beam main part, simultaneously, the sagittal height h of front and back side edge is different with the ratio between the chord length k, still can utilize different parameter designs to realize front and back local intensity differentiation design, reduces vibration response sensitivity. The ratio of the sagittal height h to the chord length k of the front side edge and the rear side edge is set to be 0.04 and 0.13 respectively, so that the optimal ratio of front and rear local strength differential design of the front cross beam can be obtained, vibration response sensitivity is reduced to the greatest extent, comfort level of the whole automobile is improved, and the plate thickness of the front cross beam main body is set to be 0.6-0.8mm, so that the lightweight design of the front cross beam main body is facilitated.

Secondly, through setting up a plurality of second triangle-shaped archs, do benefit to the structural strength who promotes front beam main part front side. The square bulges and the square grooves are alternately arranged, a similar bamboo joint structure can be formed, the square bulges, the square grooves and the similar bamboo joint structure are utilized to have the characteristic of high structural strength, and the structural strength of the weak position in the middle of the pit is effectively improved, so that the vibration response sensitivity of the position is reduced.

In addition, the structure of both sides connecting plate is the same and sets up, can promote both sides connecting plate forming die's the serialization, reduces design and processing cost, and through setting up first enhancement portion and second enhancement portion, the great characteristic of usable arch structural strength effectively promotes the structural strength of front and back side of connecting plate, simultaneously, based on the extension length difference of first enhancement portion and second enhancement portion, also can realize the design of connecting plate front and back portion intensity differentiation, promotes the structural strength of connecting plate further. The square pits and the oval pits are arranged, so that the structural strength of the connecting plate can be further improved, and the arrangement of the trapezoid lightening holes and the rectangular lightening holes is beneficial to realizing the lightening of the connecting plate.

Another object of the utility model is to propose a motor vehicle in the body of which a roof front cross-member as described above is provided.

The automobile provided by the utility model is provided with the automobile body top cover front beam, so that the weight of the top cover front beam can be ensured, the structural strength of the top cover front beam can be improved, the vibration response sensitivity of the top cover front beam is reduced, and the automobile has good practicability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic view of the overall structure of a front cross member of a roof of a vehicle body according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a front beam main body according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic diagram of the structure shown in FIG. 2 from another perspective;

FIG. 5 is a schematic view of the structure of the sagittal height h and the chord length k of the anterior edge according to the embodiments of the present utility model;

FIG. 6 is a schematic view of a left-side connection board according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of the structure shown in FIG. 6 from another perspective;

fig. 8 is a schematic structural view of a right-side connecting plate according to an embodiment of the present utility model;

reference numerals illustrate:

1. a front cross member main body; 2. a connecting plate; 3. a vehicle body upper longitudinal beam;

101. reinforcing the pit; 102. a first triangular protrusion; 103. an arched groove; 104. a second triangular protrusion; 105. square protrusions; 106. square grooves; 201. a first reinforcing part; 202. a second reinforcing part; 203. square pits; 204. elliptical pits; 205. a trapezoidal lightening hole; 206. rectangular lightening holes.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The embodiment relates to a car body top cover front cross beam, which can improve the structural strength of the weak position of the top cover front cross beam, reduce the vibration response sensitivity of the top cover front cross beam and improve the comfort of the whole car on the premise of ensuring the light weight of the top cover front cross beam.

As shown in fig. 1 to 8, in the overall structure, the roof front cross member of the present embodiment includes a front cross member main body 1 in the shape of a plate, reinforcing pits 101 are provided on the front cross member main body 1, which are arranged concavely in the up-down direction of the whole vehicle, and the reinforcing pits 101 extend in the longitudinal direction of the front cross member main body 1.

Wherein, the side that strengthens pit 101 is close to the locomotive is equipped with along the protruding 102 of whole car upper and lower direction upwards convex first triangle-shaped, and simultaneously, the side that strengthens pit 101 and is close to the tail is equipped with along the arch recess 103 that whole car front and back direction backward arched, and first triangle-shaped arch 102 and arch recess 103 all are located the middle part of strengthening pit 101 length direction.

It should be noted that, the first triangular protrusion 102 of the present embodiment is generally triangular in overall structure, and three sides of the first triangular protrusion 102 can follow the shape of the peripheral structure in the front beam main body 1 when specifically disposed, and is not limited to be formed by sequentially connecting three straight line segments in a strict sense, for example, as shown in fig. 4, a platform with a through hole is formed at the top of the first triangular protrusion 102.

Meanwhile, it can be understood that, in this embodiment, in view of the requirement of structural strength, besides the scheme of arranging the first triangular protrusion 102 and the arched groove 103 in the middle of the reinforcing pit 101, only the first triangular protrusion 102 or only the arched groove 103 may be arranged, so that only the front beam body 1 needs to be ensured to meet the corresponding requirement of structural strength design.

Based on the above-described overall description, in this embodiment, as a preferred exemplary structure, as shown in fig. 2, 4 and 5, the edge of the front cross member main body 1 on the side close to the head and the edge on the side close to the tail are both arched forward in the front-rear direction of the whole vehicle, and the ratio between the sagittal height h and the chord length k of the edge of the front cross member main body 1 on the side close to the head is different from the ratio between the sagittal height h and the chord length k of the edge of the front cross member main body 1 on the side close to the tail.

Here, through all arch forward the setting with the front and back side edge of front beam main part 1, can utilize the big characteristics of arch intensity to promote the holistic structural strength of front beam main part 1, simultaneously, the sagittal height h of front and back side edge is different with the ratio between the chord length k, still can utilize different parameter designs to realize front and back local intensity differentiation design, reduces vibration response sensitivity.

For convenience of distinguishing and describing the front and rear side edges of the front cross member body 1, the edge of the front cross member body 1 near the vehicle head side is referred to as a front side edge, and the edge of the front cross member body 1 near the vehicle tail side is referred to as a rear side edge in this embodiment.

The chord length k of the front side edge is the distance between the two arch feet connecting lines on the front side edge, namely the length between the two ends of the front side edge in the left-right direction of the whole vehicle, and the sagittal height h is the perpendicular distance between the arch crown of the arch part and the two arch feet connecting lines. Similarly, the chord length k of the rear side edge is the distance between the two arch feet connecting lines on the rear side edge, namely the length between the two ends of the rear side edge in the left-right direction of the whole vehicle, and the sagittal height h is the perpendicular distance between the arch crown of the arch part and the two arch feet connecting lines.

In this embodiment, in the process of performing the structural optimization design on the front beam main body 1, considering the requirement of reducing the vibration response sensitivity of the structure, in the specific implementation, as a preferred implementation manner, the ratio between the sagittal height h of the front side edge and the chord length k is 0.04, and the ratio between the sagittal height h of the rear side edge and the chord length k is 0.13, so that the optimal ratio of the front beam main body 1 front-rear local strength differential design can be obtained, the vibration response sensitivity is reduced to the maximum, and the comfort level of the whole vehicle is improved.

Of course, in this embodiment, in addition to setting the ratio between the sagittal height h of the front side edge and the chord length k to 0.04 and the ratio between the sagittal height h of the rear side edge and the chord length k to 0.13, the corresponding setting and adjustment may be performed according to the actual structural optimization requirement to obtain the noise reduction performance of the corresponding requirement, for example, the ratio between the sagittal height h of the front side edge and the chord length k may be specifically set to 0.03 or 0.05, and the ratio between the sagittal height h of the rear side edge and the chord length k may be set to 0.12 or 0.14.

In the preferred embodiment, the front cross member body 1 has a plate thickness of 0.6-0.8mm, which is advantageous in light weight design of the front cross member body 1. In the specific setting, the plate thickness of the front cross member main body 1 can be set and adjusted according to the actual strengthening requirement, and for example, the plate thickness can be set to 0.6mm or 0.7 mm.

Meanwhile, the front beam main body 1 can be manufactured by adopting a stamping forming process, so that the manufacture of the plate thickness dimension of 0.6-0.8mm is facilitated, and the advantages of high manufacture efficiency, good forming quality, high consistency, low cost and the like are achieved.

It should be noted that, when the reinforcing pit 101 of the present embodiment is specifically configured, the length and the depth thereof may be set and adjusted according to the actual reinforcing requirement of the front beam body 1, for example, the length may be specifically set to 552mm, and the depth may be specifically set to 10mm, so as to obtain a better reinforcing effect.

Referring to fig. 2 and 3, in order to improve the structural strength of the front side of the front beam body 1, in this embodiment, as a preferred implementation manner, a second triangular protrusion 104 is provided at the front side edge of the front beam body 1, the second triangular protrusion 104 protrudes forward along the front-rear direction of the whole vehicle, and second triangular protrusions 104 are provided near both ends of the front beam body 1.

In this embodiment, the second triangular protrusions 104 near the two ends of the front beam body 1 are a plurality of second triangular protrusions arranged at intervals along the length direction of the front beam body 1, so as to further improve the structural strength of the front side of the front beam body 1.

In a specific arrangement, the number and arrangement positions of the second triangular protrusions 104 may be set and adjusted according to the actual structural reinforcement requirement, for example, the second triangular protrusions 104 that may be specifically set to be close to two ends of the front beam main body 1 may be two or three of the second triangular protrusions that are arranged side by side along the length direction of the front beam main body 1.

Of course, the second triangular protrusion 104 herein has a similar meaning to that of the first triangular protrusion 102, and also means that the second triangular protrusion 104 is generally triangular in overall structure, and three sides of the second triangular protrusion 104 are not limited to be formed by sequentially connecting three straight line segments in a strict sense, such as, for example, as shown in fig. 3, the protruding end of the second triangular protrusion 104 is not a sharp corner, but is configured as an arc structure.

In addition, in this embodiment, as a preferred embodiment, as shown in fig. 2 and 4, the bottom of the reinforcing pit 101 is provided with square protrusions 105 protruding upward in the up-down direction of the whole car, and square grooves 106 arranged concavely downward in the up-down direction of the whole car, and the square protrusions 105 and the square grooves 106 are alternately arranged in the length direction of the reinforcing pit 101 and connected together in sequence.

Therefore, similar bamboo joint structures can be formed based on the alternate arrangement of the square protrusions 105 and the square grooves 106, and the characteristics of large structural strength of the square protrusions 105, the square grooves 106 and the similar bamboo joint structures are utilized, so that the structural strength of the middle weak position of the reinforced pit 101 is effectively improved, and the vibration response sensitivity of the position is reduced.

It should be noted that, the square protrusions 105 and the square grooves 106 in this embodiment are alternately formed into a bamboo-like structure, which means that one of the square protrusions 105 and the square grooves 106 can be regarded as each section of bamboo and the other as a protruding portion connected between each section of bamboo in the whole, so as to form a bamboo-like structure, thereby improving the structural strength of the middle portion of the reinforced pit 101 based on the structural characteristics of high tensile strength and shear strength of the bamboo.

When the structure is specifically arranged, the length dimension of the bamboo-like structure in the left-right direction of the whole vehicle can be correspondingly set and adjusted according to actual reinforcing requirements, for example, the structure can be specifically set to 400mm, so that a better reinforcing effect can be achieved. In addition, the structural shapes of the square protrusions 105 and the square grooves 106 can be set and adjusted according to the structural design requirement of the front beam main body 1, for example, the square protrusions and the square grooves are set to be round or diamond.

In addition, as shown in fig. 1, as a preferred implementation form, the front roof rail of the vehicle body roof of the present embodiment further includes connection plates 2 located at the left and right sides of the front rail body 1, the connection plates 2 at both sides are respectively used for connecting the front rail body 1 with the upper side members 3 of the vehicle body at the corresponding sides, and the connection plates 2 at both sides have the same structure. Therefore, the sharing of the forming dies of the connecting plates 2 on the two sides can be improved based on the connecting plates 2 with the same structures on the two sides, and the design and processing cost is reduced.

In this embodiment, the concrete structure of the connecting plate 2 will be described by taking the connecting plate 2 on the left side as an example, and in this case, as a preferred embodiment, as shown in fig. 6 to 7, a first reinforcing portion 201 that arches downward in the up-down direction of the entire vehicle is provided on the side of the connecting plate 2 near the head of the vehicle, and a second reinforcing portion 202 that arches downward in the up-down direction of the entire vehicle is provided on the side of the connecting plate 2 near the tail of the vehicle.

Wherein, the first reinforcement portion 201 and the second reinforcement portion 202 are both located at one end of the connecting plate 2 near the upper side member 3 of the vehicle body, and the extension lengths of the first reinforcement portion 201 and the second reinforcement portion 202 in the left-right direction of the whole vehicle are different. Therefore, the characteristic of high arch structure strength can be utilized to effectively improve the structure strength of the front side and the rear side of the connecting plate 2, and meanwhile, the differential design of the front and the rear strength of the connecting plate 2 can be realized based on the difference of the extension lengths of the first reinforcing part 201 and the second reinforcing part 202, so that the vibration response sensitivity is reduced.

Of course, in the specific arrangement, the extension lengths of the first reinforcement portion 201 and the second reinforcement portion 202 in the present embodiment may be set and adjusted accordingly according to the actual structural reinforcement requirement, for example, the extension length of the first reinforcement portion 201 may be specifically set to a position from one end close to the body side member 3 to about 1/2 of the front side of the connecting plate 2, accounting for half of the length of the connecting plate 2, and the extension length of the second reinforcement portion 202 may be specifically set to a position from one end close to the body side member 3 to about 1/3 of the rear side of the connecting plate 2, accounting for one third of the length of the connecting plate 2.

In addition, it should be noted that the specific structural shapes of the first reinforcing portion 201 and the second reinforcing portion 202 may be set and adjusted according to the actual reinforcing requirement, for example, referring to fig. 6, the first reinforcing portion 201 may be divided into two left and right sections, and the two left and right sections have different heights to form a step-like structure, so as to further enhance the structural strength of the connecting plate 2.

In this embodiment, still referring to fig. 7, as a preferred implementation manner, the connection board 2 is provided with at least one of square pits 203 and oval pits 204 concavely arranged along the up-down direction of the whole car, so as to improve the structural strength of the connection board 2.

In the specific structural design of the connecting plate 2, square pits 203 and oval pits 204 may be simultaneously arranged on the connecting plate 2 according to the actual structural reinforcement requirement, or only square pits 203 or oval pits 204 may be arranged on the connecting plate 2.

Of course, the number and the structural shape of the square pits 203 and the oval pits 204 may be set according to the actual structural reinforcement requirement, for example, one square pit 203 and two oval pits 204 arranged at intervals may be specifically provided.

Meanwhile, considering the light weight design of the connection board 2, in this embodiment, as a preferred implementation manner, at least one of the trapezoid lightening holes 205 and the rectangular lightening holes 206 is provided on the connection board 2, that is, the number of the trapezoid lightening holes 205 and the rectangular lightening holes 206 can be set and adjusted according to the actual lightening requirement of the connection board 2 in implementation, for example, one trapezoid lightening hole 205 and one rectangular lightening hole 206 can be provided specifically. The structural shapes of the trapezoidal lightening holes 205 and the rectangular lightening holes 206 are not limited to the trapezoid or the rectangle, and may be circular, triangular, or the like according to the actual layout design requirements.

In addition, in the present embodiment, a schematic structure of the right-side connection plate 2 is also shown in fig. 8, and the right-side connection plate 2 is also provided with the first reinforcing portion 201, the second reinforcing portion 202, the square pit 203, the oval pit 204, the trapezoidal lightening hole 205, the rectangular lightening hole 206, and the like, and the related structures of the left-side connection plate 2 are also provided.

Further, as still shown in fig. 1 and 7, it is understood that, since the installation positions are exactly opposite, the connection plate 2 on the right side can be regarded as a mirror image of the connection plate 2 on the left side with respect to the center axis of the front cross member main body 1 in fig. 1, for example, the first reinforcement portion 201 on the connection plate 2 on the right side is provided on the right side, the first reinforcement portion 201 on the connection plate 2 on the left side is provided on the left side, and so on.

The front beam of the vehicle body top cover of the embodiment can improve the structural strength of the middle weak position of the front beam main body 1 by arranging the reinforcing pits 101, and can respectively improve the structural strength of the middle position of the reinforcing pits 101 based on the characteristics of high triangular stability and large arched structural strength by matching with the first triangular bulge 102 and the arched groove 103, so as to further improve the structural strength of the front beam main body 1, reduce the vibration response sensitivity, and design the front beam main body 1 into a plate shape, thereby ensuring the overall light weight of the front beam of the vehicle body top cover and having good use effect.

Example two

The present embodiment relates to an automobile in which the body roof front cross member of the first embodiment is provided.

The automobile of this embodiment can reduce the top cover front beam vibration response sensitivity under the prerequisite of guaranteeing top cover front beam lightweight through setting up the automobile body top cover front beam in embodiment one, optimizes the noise in the car, and can promote whole car NVH performance.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a automobile body top cap front cross beam which characterized in that:

comprises a plate-shaped front beam main body (1);

the front beam main body (1) is provided with a reinforcing pit (101) which is concavely arranged along the up-down direction of the whole vehicle, and the reinforcing pit (101) extends along the length direction of the front beam main body (1);

the vehicle-mounted automobile reinforcing device is characterized in that a first triangular bulge (102) protruding upwards along the up-down direction of the whole automobile is arranged on one side, close to the head of the vehicle, of the reinforcing pit (101), and/or an arched groove (103) protruding backwards along the front-back direction of the whole automobile is arranged on one side, close to the tail of the vehicle, of the reinforcing pit (101), and the first triangular bulge (102) and the arched groove (103) are both located in the middle of the length direction of the reinforcing pit (101).

2. The roof front rail according to claim 1, wherein:

the front beam main body (1) is characterized in that the edge close to the front side and the edge close to the tail side arch forwards along the front-rear direction of the whole car, and the ratio between the sagittal height h of the edge close to the front side of the front beam main body (1) and the chord length k is different from the ratio between the sagittal height h of the edge close to the tail side of the front beam main body (1) and the chord length k.

3. The roof front rail according to claim 2, wherein:

the ratio of the sagittal height h of the edge of the front cross beam main body (1) close to the vehicle head side to the chord length k is 0.04, and the ratio of the sagittal height h of the edge of the front cross beam main body (1) close to the vehicle tail side to the chord length k is 0.13; and/or the number of the groups of groups,

the plate thickness of the front beam main body (1) is between 0.6 and 0.8 mm.

4. The roof front rail according to claim 2, wherein:

the front side edge of the front beam main body (1) is provided with a second triangular bulge (104), the second triangular bulge (104) protrudes forwards along the front and rear directions of the whole car, and two ends close to the front beam main body (1) are provided with the second triangular bulge (104).

5. The roof front rail of claim 4, wherein:

the second triangular protrusions (104) close to the two ends of the front beam main body (1) are arranged at intervals along the length direction of the front beam main body (1).

6. The roof front rail according to claim 1, wherein:

the bottom of strengthening pit (101) is equipped with along whole car upper and lower direction upwards convex square protruding (105) to and along square recess (106) that whole car upper and lower direction indent was arranged, square protruding (105) with square recess (106) are followed strengthen the length direction of pit (101) and set up in turn, and connect together in proper order.

7. The roof front rail according to any one of claims 1 to 6, characterized in that:

the automobile front beam is characterized by further comprising connecting plates (2) positioned at the left side and the right side of the front beam main body (1), wherein the connecting plates (2) at the two sides are respectively used for connecting the front beam main body (1) with an automobile body upper longitudinal beam (3) at the corresponding side, and the structures of the connecting plates (2) at the two sides are the same.

8. The roof front rail of claim 7, wherein:

a first reinforcing part (201) downwards arched along the up-down direction of the whole vehicle is arranged on one side, close to the vehicle head, of the connecting plate (2), and a second reinforcing part (202) downwards arched along the up-down direction of the whole vehicle is arranged on one side, close to the vehicle tail, of the connecting plate (2);

the first reinforcing part (201) and the second reinforcing part (202) are both positioned at one end of the connecting plate (2) close to the upper longitudinal beam (3) of the vehicle body, and the extending lengths of the first reinforcing part (201) and the second reinforcing part (202) in the left-right direction of the whole vehicle are different.

9. The roof front rail of claim 7, wherein:

at least one of square pits (203) and elliptical pits (204) which are concavely arranged along the up-down direction of the whole vehicle are arranged on the connecting plate (2); and/or at least one of a trapezoid lightening hole (205) and a rectangular lightening hole (206) is arranged on the connecting plate (2).

10. An automobile, characterized in that:

a body of the automobile provided with the roof front cross member according to any one of claims 1 to 9.