CN217074532U

CN217074532U - Front windshield lower beam and vehicle

Info

Publication number: CN217074532U
Application number: CN202220707844.XU
Authority: CN
Inventors: 岳志强
Original assignee: Salon Mecha Technology Co ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-29
Anticipated expiration: 2032-03-28

Abstract

The utility model relates to a windscreen bottom end rail and vehicle, wherein, windscreen bottom end rail includes the crossbeam body, this internal cavity that is formed with of this crossbeam, and the cavity link up the setting along crossbeam body length direction to be equipped with the portion of shaking of inhaling on the crossbeam body. The front windshield lower beam of the utility model can effectively attenuate the vibration energy transmitted to the front windshield lower beam by forming the cavity in the beam body and arranging the vibration absorbing part on the beam body, thereby improving the NVH performance of the vehicle; compared with the existing method of increasing the thickness of the beam body and additionally arranging the bracket, the method of arranging the vibration absorption part is more beneficial to the light-weight design of the vehicle, and the protection effect of the vehicle on pedestrians is not influenced.

Description

Front windshield lower beam and vehicle

Technical Field

The utility model relates to a vehicle parts technical field, in particular to windscreen bottom end rail, simultaneously, the utility model discloses still relate to a vehicle with this windscreen bottom end rail.

Background

At present, each vehicle enterprise pays more and more attention to the lightweight design of the vehicle, and particularly for an electric vehicle, the weight and the cost of the vehicle can be reduced through the lightweight of the vehicle, and meanwhile, the endurance mileage of the electric vehicle can be prolonged. Therefore, the thickness of the existing vehicle front windshield lower cross beam does not exceed 0.7mm generally, but the structure of the front windshield lower cross beam is weaker due to the thinner thickness, and the vibration energy transmitted to the structure is increased. Meanwhile, in the process of accelerating the vehicle, the excitation of the motor reducer and the road surface can be transmitted to the lower cross beam of the front windshield through the vehicle body framework, and the problem of in-vehicle roar is easily caused in the section of the mode frequency of the lower cross beam of the front windshield corresponding to the rotating speed.

In order to solve the problems, some vehicle enterprises adopt a means of increasing the thickness of the lower cross beam of the front windshield, but the method needs to redevelop a mould of a peripheral part of the lower cross beam of the front windshield, and the cost is higher. In addition, some vehicle enterprises support the lower cross beam of the front windshield by adding a bracket, but the method causes the whole weight to be increased greatly and is not beneficial to protecting pedestrians.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a windscreen bottom end rail, its vibration energy that can effective attenuation transmission to windscreen bottom end rail can improve the NVH performance of vehicle.

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

the lower cross beam of the front windshield comprises a cross beam body, wherein a cavity is formed in the cross beam body, the cavity is arranged in a through mode along the length direction of the cross beam body, and a vibration absorption part is arranged on the cross beam body.

Furthermore, the beam body comprises a first plate body and a second plate body which are buckled together, a containing groove is formed in the first plate body, and the vibration absorbing part comprises a rubber body arranged in the containing groove.

Furthermore, the holding tank is a plurality of along the length direction interval setting of first plate body, and at least one of them the holding tank is for following the rectangular form that first plate body length direction extends.

Furthermore, flanges are respectively formed on two sides of the first plate body, and a protruding part is arranged in the middle of the first plate body;

the first plate body is connected with the second plate body through the turned-over edges on two sides.

Furthermore, two ends of the second plate body are respectively provided with an outward flange, and the outward flanges are used for being connected with a vehicle A column.

Furthermore, the cross section of the cavity is triangular.

Furthermore, at least one reinforcing plate is arranged in the cavity, and the cavity is divided into a plurality of sub-cavities by the reinforcing plate.

Furthermore, the reinforcing plate is a triangle which is arranged along the cross section of the cavity.

Furthermore, the reinforcing plate is provided with lightening holes.

Compared with the prior art, the utility model discloses following advantage has:

the front windshield lower beam of the utility model can effectively attenuate the vibration energy transmitted to the front windshield lower beam by forming the cavity in the beam body and arranging the vibration absorbing part on the beam body, thereby improving the NVH performance of the vehicle; compared with the existing method of increasing the thickness of the beam body and additionally arranging the bracket, the method of arranging the vibration absorption part is more beneficial to the light-weight design of the vehicle, and the protection effect of the vehicle on pedestrians is not influenced.

In addition, through set up the holding tank on first plate body, not only be convenient for set up the rubber body on first plate body, also can strengthen the structural strength of first plate body simultaneously to can reduce the vibration sensitivity of crossbeam body. Set up a plurality of holding tanks, can further improve the structural strength of first plate body. The protruding parts are arranged between the flanges on the two sides of the first plate body, so that the structural strength of the first plate body can be improved, and the vibration sensitivity of the beam body can be further reduced.

In addition, the two ends of the second plate body are provided with the flanging, so that the second plate body can be conveniently connected with the A column of the vehicle. The cross section of the cavity is designed into a triangle, so that the characteristic of high stability of the triangle can be facilitated, the rigidity of the beam body is improved, and the vibration sensitivity of the lower beam of the front windshield can be reduced. Set up the reinforcing plate in the cavity, can further improve the structural strength of crossbeam body. Through establishing the reinforcing plate into the triangle-shaped along with shape in the setting of cavity cross section, can improve the reinforcing effect of reinforcing plate to the crossbeam body. The lightening holes are formed in the reinforcing plate, so that the lightweight design is facilitated.

Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with a lower cross beam of a front windshield as described above.

Vehicle and beneficial effect that above-mentioned front windshield bottom end rail has for prior art the same, no longer give unnecessary details here.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a cross beam body according to an embodiment of the present invention when a rubber body is removed;

fig. 2 is a schematic structural view of another view angle when the rubber body is removed from the beam body according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first plate according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the first plate according to another view angle in the embodiment of the present invention;

fig. 5 is a schematic structural view of a second plate according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a second plate according to an embodiment of the present invention at another viewing angle;

fig. 7 is a schematic structural diagram of a reinforcing plate according to an embodiment of the present invention.

Description of reference numerals:

1. a beam body;

101. a first plate body; 1011. flanging; 1012. a projection; 10121. accommodating grooves;

102. a second plate body; 1021. flanging;

103. a cavity;

104. a reinforcing plate; 1041. and (7) lightening holes.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless expressly limited otherwise. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a front windshield lower beam, which comprises a beam body 1, wherein a cavity 103 is formed in the beam body 1, the cavity 103 is communicated with the beam body 1 in the length direction, and a vibration absorption part is arranged on the beam body 1.

According to the front windshield lower cross beam of the embodiment, the cavity 103 is formed in the cross beam body 1, and the vibration absorption part is arranged on the cross beam body 1, so that the vibration energy transmitted to the front windshield lower cross beam can be effectively attenuated, and the NVH (noise, vibration and harshness) performance of a vehicle can be improved; compared with the existing method of increasing the thickness and weight of the beam body 1 and additionally arranging a bracket, the method of arranging the vibration absorbing part is more beneficial to the light-weight design of the vehicle, and the protection effect of the vehicle on pedestrians is not influenced.

Based on the above overall structure, an exemplary structure of the front windshield lower cross member of the present embodiment is as shown in fig. 1 and 2, the cross member body 1 is an elongated shape extending in the vehicle width direction as a whole, and both ends of the cross member body 1 are bent to one side of the cross member body 1. As a specific implementation manner, the cross section of the cavity 103 in this embodiment is triangular, and the beam body 1 includes a first plate 101 and a second plate 102 that are fastened together, where the first plate 101 and the second plate 102 may be welded together or integrally formed. In addition, the first plate 101 and the second plate 102 may be formed by welding a plurality of separate plates, instead of being formed as an integral plate.

In addition, as shown in fig. 3 and fig. 4 in combination with fig. 1, a receiving groove 10121 is formed on the first plate 101, and the vibration absorbing portion includes a rubber body, not shown, disposed in the receiving groove 10121, wherein the rubber body may be vulcanized and connected to the first plate 101. Through set up holding tank 10121 on first plate body 101, not only be convenient for set up the rubber body on first plate body 101, also can strengthen the structural strength of first plate body 101 simultaneously to can reduce the vibration sensitivity of crossbeam body 1.

In this embodiment, to further improve the use effect, as shown in fig. 3 and fig. 4, the receiving grooves 10121 of this embodiment are specifically a plurality of grooves that are arranged at intervals along the length direction of the first plate 101. Fig. 3 shows only one row of receiving grooves 10121, and in practical applications, multiple rows of receiving grooves 10121 are disposed on the first plate 101 at intervals along the width direction of the first plate.

In addition, as a preferred embodiment, as shown in fig. 3 and 4, each receiving groove 10121 is a long strip extending along the longitudinal direction of the first plate 101, so that the receiving groove 10121 can be filled with a large amount of rubber, thereby improving the vibration absorbing effect of the beam body 1. Here, in addition to the elongated accommodation grooves 10121, only one of the accommodation grooves 10121 may be elongated, and the other accommodation grooves 10121 may be circular or other shapes.

Further, as also shown in fig. 3 and 4, flanges 1011 are formed on both sides of the first plate 101, respectively, and a projection 1012 is provided at a middle portion of the first plate 101. As a preferable embodiment, as shown in fig. 3, the portion between the flanges 1011 protrudes to one side of the second plate 102 to form a protrusion 1012, and the receiving groove 10121 is formed on the protrusion 1012, and the first plate 101 is connected to the second plate 102 through the flanges 1011 on both sides. So set up, not only can improve the structural strength of first plate body 101, set up simultaneously the turn-ups 1011 also be convenient for first plate body 101 and second plate body 102 link to each other.

It should be noted that, instead of projecting all the portions between the two side flanges 1011 to one side of the second plate 102 as shown in fig. 3, only the portion between the two side flanges 1011 may be projected to one side of the second plate 102, that is, the number of the projecting portions 1012 may be one instead of two.

The second plate 102 of the present embodiment is constructed as shown in fig. 5 and 6, and as a preferred embodiment, the second plate 102 has a V-shaped cross section, and the cross section of the cavity 103 is made to be triangular. Therefore, the characteristic of high stability of the triangle can be facilitated, the rigidity of the beam body 1 is improved, and the vibration sensitivity of the lower beam of the front windshield can be reduced. In addition, as shown in fig. 5, at both ends of the second plate 102, flanges 1021 are formed, respectively, and the flanges 1021 are used for connection with the a-pillar of the vehicle. It should be noted that the cross section of the second plate 102 may be U-shaped, M-shaped, or the like according to design requirements, in addition to being V-shaped.

In addition, in the embodiment, in order to further improve the use effect, at least one reinforcing plate 104 is disposed in the cavity 103, and the cavity 103 is divided into a plurality of sub-cavities by the reinforcing plate 104. Through set up reinforcing plate 104 in cavity 103, when improving crossbeam body 1 structural strength, do not occupy the exterior space, also need not to look for the strong point, can have better effect.

In the present embodiment, as a preferable embodiment, as shown in fig. 7, the reinforcing plate 104 of the present embodiment has a triangular shape provided to follow the cross-sectional shape of the cavity 103. The reinforcing plates 104 are provided in plurality at intervals in the longitudinal direction of the cavity 103. At this time, in order to facilitate lightweight setting, the weight reduction holes 1041 are provided on the reinforcing plate 104, and the weight reduction holes 1041 may also communicate with the sub-cavities without affecting the vibration absorption performance of the beam body 1.

Of course, only one reinforcing plate 104 may be provided instead of a plurality of reinforcing plates, and the reinforcing plate 104 may have other shapes than a triangular shape.

The front windshield lower beam of the embodiment can have better rigidity by adopting the structure, so that the vibration sensitivity is reduced, and meanwhile, the rubber body can effectively absorb vibration, so that the NVH performance of a vehicle can be effectively improved by the front windshield lower beam.

Example two

The embodiment relates to a vehicle, and the vehicle is provided with a front windshield lower cross beam in the first embodiment.

According to the vehicle provided by the embodiment, the front windshield lower cross beam can effectively absorb vibration energy such as a motor reducer and road excitation, so that the vehicle can have better NVH (noise vibration and harshness) performance.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A front windshield lower beam is characterized in that:

the vibration absorption beam comprises a beam body (1), wherein a cavity (103) is formed in the beam body (1), the cavity (103) is arranged in a penetrating mode along the length direction of the beam body (1), and a vibration absorption part is arranged on the beam body (1).

2. The front windshield lower cross member of claim 1, wherein:

the beam body (1) comprises a first plate body (101) and a second plate body (102) which are buckled together, an accommodating groove (10121) is formed in the first plate body (101), and the vibration absorbing part comprises a rubber body arranged in the accommodating groove (10121).

3. The lower cross member of a front windshield of claim 2, wherein:

the accommodating grooves (10121) are arranged along the length direction of the first plate body (101) at intervals, and at least one of the accommodating grooves (10121) is a long strip extending along the length direction of the first plate body (101).

4. The lower cross member of a front windshield of claim 2, wherein:

flanges (1011) are respectively formed on two sides of the first plate body (101), and a protruding part (1012) is arranged in the middle of the first plate body (101);

the first plate body (101) is connected with the second plate body (102) through the turned-over edges (1011) on two sides.

5. The lower cross member of a front windshield of claim 2, wherein:

two ends of the second plate body (102) are respectively provided with a flanging (1021), and the flanging (1021) is used for being connected with a vehicle A column.

6. A front windscreen lower cross member according to any one of claims 2 to 5, wherein:

the cross section of the cavity (103) is triangular.

7. The lower cross member of a front windshield of claim 6, wherein:

at least one reinforcing plate (104) is arranged in the cavity (103), and the cavity (103) is divided into a plurality of sub-cavities by the reinforcing plate (104).

8. The front windshield lower cross member of claim 7, wherein:

the reinforcing plate (104) is triangular along the cross section of the cavity (103).

9. The front windshield lower cross member of claim 7, wherein:

the reinforcing plate (104) is provided with lightening holes (1041).

10. A vehicle, characterized in that: the vehicle is provided with a lower front windshield cross member as recited in any one of claims 1 to 9.