A detachable windshield support device and a vehicle

Abstract

The present invention discloses a separable windshield support device and a vehicle, belonging to the technical field of vehicles. The support device includes a first structure and a second structure distributed up and down. The first structure is used to support the windshield; the first structure includes a first support structure; the second structure includes a second support structure, a third support structure and a fourth support structure fixedly connected in a closed loop. The connection point between the second support structure and the third support structure is a first support point. The first support structure and the second support structure are rotatably connected, and the connection point is a rotation point. The windshield is supported by the first structure, and the second structure is rotatably connected to the first support structure of the first structure. When a pedestrian impacts the windshield, the windshield rotates with the first support structure to prevent the pedestrian's head from being violently impacted. Moreover, the second structure supports the first structure, and the second structure is fixedly connected in a closed loop to ensure the NVH performance of the vehicle while protecting pedestrians.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and specifically to a separable windshield support device and a vehicle equipped with the support mechanism. Background Art

[0002] When a pedestrian collides with a vehicle, due to the inertial effect of the torso, the head will violently impact the front end of the vehicle, causing head injuries to the pedestrian. In the case of a specific proportional relationship between the height and the size of the vehicle, the pedestrian's head will impact the bottom area of the front windshield of the car.

[0003] The lower cross member of the windshield and the rear end of the water trough, the front end of the lower cross member of the windshield extends upward, and the end is bonded to the front windshield glass to provide support and sealing for the lower end of the front windshield glass. The front end of the water trough extends downward, and several brackets are added at the front end to support the lower cross member of the windshield. Since the structure at the bottom of the windshield is complex, it is necessary to install the windshield glass, windshield wiper, air conditioner, etc. At the same time, this area is the boundary between the front engine compartment and the passenger compartment. When the head impacts in this area, the crushing space is small, resulting in a high head injury.

[0004] In the traditional design, mainly by reducing the stiffness of the lower cross member of the windshield and the stiffness of the water trough bracket to increase the head crushing depth and relieve the head impact strength, thereby reducing the damage caused by the structure in the bottom area of the windshield to the pedestrian's head, but it will have a greater impact on the NVH performance (noise, vibration, and harshness) of the vehicle.

[0005] The structure of the bottom area of the front windshield of the vehicle is complex, and it is necessary to balance both the NVH performance and the pedestrian head protection performance at the same time. It is very difficult to achieve a balance between the two in the conventional structural design, and generally, it is necessary to make a trade-off according to the actual development situation of the vehicle. Due to the high difficulty of the structural design, many mid - to - high - end models worldwide have adopted pedestrian protection airbags to improve the protection of the pedestrian's head in the bottom area of the vehicle's windshield. When the pedestrian protection airbag is fully deployed, the airbag will completely cover the bottom area of the windshield, and the pedestrian's head will impact on the inflated airbag instead of the bottom structure of the windshield. Through a series of complex calibration works, it can be ensured that when a pedestrian collision accident occurs, the sensor can identify the pedestrian in time, and at the same time, before the pedestrian's head impacts, the airbag is already in a fully inflated state, thus greatly improving the pedestrian head injury.

[0006] However, the development cycle of this technical solution is long, the cost is high, the maintenance and replacement costs are high, and at the same time, there are still deficiencies in the current calibration technology, and the risk of mis - detonation is relatively high. Summary of the Invention

[0007] In order to overcome the disadvantages and deficiencies of the prior art, the present invention discloses a split windshield support device, which can reduce the injury to pedestrians hitting the windshield while ensuring the NVH performance of the vehicle. The support device includes a first structure and a second structure distributed up and down, and the first structure is used to support the windshield; the first structure includes a first support structure.

[0008] The second structure includes a second support structure, a third support structure and a fourth support structure fixedly connected in a closed loop. The connection point of the second support structure and the third support structure is a first support point, and the first support structure is connected to the second support structure through a rotation point.

[0009] Furthermore, the first structure further includes a support portion, the support portion supports the windshield, the support portion is connected to the first support structure, and the support portion is arranged in contact with the windshield.

[0010] Furthermore, the support point of the support portion and the windshield is a second support point, and the first support point is closer to the vehicle head than the second support point to increase the length of the first support structure.

[0011] Furthermore, the first structure is the upper structure of the windshield lower cross member, and the second support structure is the lower structure of the windshield lower cross member; the third support structure is a water trough bracket, and the fourth support structure is a water trough.

[0012] Furthermore, the stiffness of the third support structure is stronger than that of the first structure.

[0013] Furthermore, a shock tower is connected to the side of the water trough.

[0014] Furthermore, the first structure and the second structure are arranged at the bottom of the windshield, and the first structure supports the bottom of the windshield.

[0015] Furthermore, the windshield support glass device is also provided with a fixing column and a windshield upper cross member;

[0016] The fixing column is arranged on the side of the windshield, and the fixing column supports the side of the windshield;

[0017] The windshield upper cross member is arranged on the top of the windshield, and the windshield upper cross member supports the top of the windshield.

[0018] Furthermore, both the first structure and the second structure are damping materials.

[0019] On the other hand, the present application also provides a vehicle, which includes a split windshield support device as described above.

[0020] Implementing the present invention has the following beneficial effects:

[0021] 1. The windshield is supported by the first structure, and the second structure is rotatably connected to the first support structure of the first structure. When a pedestrian impacts the windshield, the windshield rotates with the first support structure, preventing the pedestrian's head from being violently impacted. Moreover, the second structure supports the first structure, and the second structure is fixedly connected in a closed loop, ensuring the NVH performance of the vehicle while protecting pedestrians.

[0022] 2. The support portion is arranged to fit the windshield, and can strongly withstand vibrations in the up and down directions, thereby more effectively suppressing the vibrations of the front window during non-collision.

[0023] 3. And the first support point is closer to the vehicle head than the first support point, which can increase the length of the first support structure, enable the first support structure to fit the third support structure, and enhance the buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural diagram of the windshield support device for the background technology;

[0026] Figure 2 Structural diagram of the windshield support device provided by the embodiment of the present invention;

[0027] Figure 3 Layout diagram of the windshield support device provided by the embodiment of the present invention;

[0028] Figure 4 Principle diagram of the windshield support device provided by the embodiment of the present invention;

[0029] Among them, the reference numerals in the drawings correspond to: 1 - first structure; 2 - second structure; 3 - first support structure; 4 - second support structure; 5 - third support structure; 6 - fourth support structure; 7 - first support point; 8 - rotation point; 9 - support portion; 10 - second support point; 11 - fixed column; 12 - windshield upper cross member; 13 - windshield; 14 - pedestrian's head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0031] Embodiment

[0032] In this embodiment, the technical problem to be solved by the present invention is to reduce the injury of pedestrians hitting the windshield while ensuring the NVH performance of the vehicle; in the traditional design, as Figure 1 shown, the second support structure 4, the third support structure 5 and the fourth support structure 6 are connected in a closed loop. The third support structure 5 supports the second support structure 4 through the first support point 7, and the second support structure 4 supports the windshield 13 through the second support point 10. The second support point 10 is arranged near the position where the pedestrian's head 14 hits the windshield 13. When the pedestrian's head 14 hits the windshield 13 violently, but due to the lack of a buffer structure, only by reducing the stiffness of the second support structure 4 and the third support structure 5 can the pedestrian's head be protected. However, reducing the stiffness of the second support structure 4 and the third support structure 5 will affect the NVH performance of the vehicle. When the vehicle is driving normally, vibrations will occur, and the comfort of riding in the vehicle cannot be guaranteed;

[0033] Therefore, the present application proposes a separate windshield support device, which is provided with one more rotation point 8 and a first support structure 3 than a traditional support device, so as to play a buffering role when a pedestrian's head 14 hits the windshield 13. The device includes a first structure 1 and a second structure 2 distributed up and down, and the first structure 1 is used to support the windshield 13; the first structure 1 includes a first support structure 3; the second structure 2 includes a second support structure 4, a third support structure 5 and a fourth support structure 6 fixedly connected in a closed loop, the connection point between the second support structure 4 and the third support structure 5 is a first support point 7, and the first support structure 3 and the second support structure 4 are rotatably connected, and the connection point is a rotation point 8; the first structure 1 is mainly provided to support the windshield 13, and the first structure 1 also includes a support portion 9, and the support portion 9 The windshield 13 is directly supported, and the support portion 9 is connected to the first support structure 3, and the windshield 13 is indirectly supported through the first support structure 3. The first support structure 3 is rotatably connected to the second support structure 4 through a rotation point 8, and the rotation point 8 is located below the support portion 9. Therefore, when a pedestrian's head 14 hits the windshield 13, the first structure 2 will rotate the first support structure through the rotation point 8, so that the windshield 13 rotates toward the inside of the vehicle, and the angle between the first support structure 3 and the second support structure 4 is smaller than before the collision, thereby reducing the damage caused by the pedestrian's head 14 hitting the windshield 13; further, the support portion 9 is fitted with the windshield 13, and can withstand the vibration of the up and down directions. The structure can more effectively suppress the vibration of the front window during non-pedestrian collisions.

[0034] Furthermore, in order to provide a wide field of vision in the cab, the windshield 13 of the vehicle is usually tilted toward the front of the vehicle with its bottom facing the vehicle bumper. Therefore, the bottom side of the windshield 13 is defined as the front direction of the vehicle, and the first support point 7 is closer to the front of the vehicle than the second support point 10, so as to increase the length of the first support structure 3. When the rotation point 8 rotates, the first support can fit the second support, and the first support structure 3 is lengthened, which can reduce the damage to the pedestrian's head 14.

[0035] While reducing the damage caused by the pedestrian's head 14 hitting the windshield 13, it should also be taken into consideration that the setting of the rotation point 8 will have a great impact on the NVH performance of the vehicle. Therefore, the windshield support structure itself is set to be separated into upper and lower parts. The first structure 1 is used to reduce the damage to pedestrians during collision, and the second structure 2 is used to ensure the NVH performance of the vehicle. The second structure 2 is fixedly connected in a closed loop by the second support structure 4, the third support structure 5 and the fourth support structure 6. Since the second structure 2 is structurally larger than the first structure 1, its rigidity is stronger than the first structure 1. The first structure 1 is mainly supported by the second structure 4, and the third support structure 5 supports the second support structure 4. Therefore, the rigidity of the third support structure 5 is stronger than that of the first structure 1, which well guarantees the NVH performance of the vehicle.

[0036] Furthermore, both the first structure 1 and the second structure 2 are damping materials. The damping materials mainly control noise and vibration. Specifically, they are damping composite materials, which mainly use rubber, plastic damping plates, and foam plastics to support the damping sandwich layer, and then combine with metal or non-metal structural materials to form various sandwich structure plates and beams and other profiles. After machining, the first structure 1 and the second structure 2 are made, enhancing the airtightness of the vehicle, reducing vibration, reducing noise, and improving the comfort of the car.

[0037] In the specific implementation of this embodiment, the windshield 13 is usually quadrilateral. To fix the windshield 13 on the vehicle, support structure devices should be provided on all four sides of the windshield 13. According to the NCAP rules (crash test), when the vehicle size and shape are determined, the accurate impact position of the pedestrian's head 14 on the vehicle windshield 13 can be determined. After testing, the impact position is almost at the bottom of the windshield 13. Therefore, the first structure 1 for protecting pedestrians is set at the bottom of the windshield 13, and the second structure 2 is below the first structure. Specifically, the first structure 1 can be the upper structure of the windshield lower crossbeam, the second support structure 4 is the lower structure of the windshield lower crossbeam, the third support structure 5 is the water trough bracket, and the fourth support structure 6 is the water trough. Among them, both ends of the water trough are respectively connected to the water trough bracket and the lower structure of the windshield lower crossbeam, and shock towers are also connected to both sides of the water trough to reduce the vibration of the water trough, and further reduce the vibration of the second structure 2, ensuring the NVH performance of the vehicle.

[0038] As Figures 3-4 shown, a windshield upper crossbeam is also provided at the top of the windshield 13. The windshield upper crossbeam is used to support the upper part of the windshield 13. When a pedestrian impacts the windshield 13, the bottom of the windshield 13 will rotate towards the interior of the vehicle along with the first support structure 3. To protect the driver, and there is no need to protect pedestrians above the windshield 14, so when setting the windshield upper crossbeam, its stiffness is increased as much as possible. When the bottom of the windshield 13 rotates towards the interior of the vehicle along with the first support structure 3, the windshield 13 can rotate with the top as the fixed center, rather than the entire windshield 1 falling off, better protecting the driver and pedestrians.

[0039] Furthermore, the windshield support device also has a fixing column 11. The fixing column 11 is arranged on the side of the windshield 13, and the fixing column 11 supports the side of the windshield 13; support structures are provided on all four sides of the windshield 14 to fix the windshield 13 in front of the vehicle.

[0040] This embodiment also provides a vehicle, which includes a separable windshield support device as described in the previous claims.

[0041] Implementing this embodiment has the following effects:

[0042] 1. The windshield is supported by a first structure, and a second structure is rotatably connected to a first support structure of the first structure. When a pedestrian impacts the windshield, the windshield rotates with the first support structure to prevent the pedestrian's head from being violently impacted. Moreover, the first structure is supported by the second structure, and the second structure is fixedly connected in a closed loop, ensuring the NVH performance of the vehicle while protecting pedestrians.

[0043] 2. The support portion is arranged to fit the windshield and can strongly withstand vibrations in the up and down directions, thereby more effectively suppressing the vibrations of the front window during non-collision.

[0044] 3. Moreover, the first support point is closer to the vehicle head than the second support point, which can increase the length of the first support structure, enable the first support structure to fit the third support structure, and enhance the buffering effect.

[0045] It should be noted that the terms "first", "second", etc. in the description, claims, and above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] The above description has fully disclosed the specific embodiments of the present invention. It should be pointed out that any modifications made by those skilled in the art to the specific embodiments of the present invention do not depart from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not limited solely to the foregoing specific embodiments.

Claims

1. A separable windshield support device, characterized in that, It includes a first structure (1) and a second structure (2) which are distributed vertically. The first structure (1) is used to support the windshield (13); the first structure (1) includes a first support structure (3). The second structure (2) includes a second support structure (4), a third support structure (5) and a fourth support structure (6) that are fixedly connected in a closed loop. The connection point between the second support structure (4) and the third support structure (5) is a first support point (7). The first support structure (3) is rotatably connected to the second support structure (4) through a rotation point (8); the first structure (1) further includes a support portion (9). The support portion (9) supports the windshield (13). The support portion (9) is connected to the first support structure (3). The support portion (9) is arranged in a manner that fits the windshield (13). The support point between the support portion (9) and the windshield (13) is a second support point (10). The first support point (7) is closer to the vehicle head than the second support point (10) to increase the length of the first support structure (3). The first structure (1) is the upper structure of the windshield lower crossbeam, and the second support structure (4) is the lower structure of the windshield lower crossbeam; the third support structure (5) is a water chute bracket, and the fourth support structure (6) is a water chute.

2. The separable windshield support device according to claim 1, characterized in that, The stiffness of the third support structure (5) is stronger than that of the first structure (1).

3. The separable windshield support device according to claim 1, wherein A shock tower is connected to the side of the water chute.

4. The separable windshield support device according to claim 1, characterized in that, The first structure (1) and the second structure (2) are arranged at the bottom of the windshield (13), and the first structure (1) supports the bottom of the windshield (13).

5. The separable windshield support device according to claim 1, characterized in that, The windshield support device is further provided with a fixing column (11) and a windshield upper crossbeam (12). The fixing column (11) is arranged at the side of the windshield (13), and the fixing column (11) supports the side of the windshield (13). The windshield upper crossbeam (12) is arranged at the top of the windshield (13), and the windshield upper crossbeam (12) supports the top of the windshield.

6. The separable windshield support device according to claim 1, wherein, Both the first structure (1) and the second structure (2) are made of damping materials.

7. A vehicle, characterized in that, The vehicle includes a split windshield support device according to any one of claims 1-6.

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