阅读说明：本技术 前风挡下饰板装置及汽车 (Front windshield lower decorative plate device and automobile ) 是由 王伟民 蒋兵 王诗虎 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种前风挡下饰板装置,包括前风挡下装饰板本体,所述前风挡下装饰板本体上设置第一弱化孔,第一弱化孔设置多个。本发明的前风挡下饰板装置,通过弱化前风挡下装饰板结构,可以提高在碰撞速度为40km/h时的行人安全保护性能,使得碰撞试验时行保保护头部碰撞得分率提升。本发明还公开了一种汽车。(The invention discloses a front windshield lower decorative plate device which comprises a front windshield lower decorative plate body, wherein a plurality of first weakening holes are formed in the front windshield lower decorative plate body. According to the front windshield lower decorative plate device, the pedestrian safety protection performance at the collision speed of 40km/h can be improved by weakening the structure of the front windshield lower decorative plate, so that the collision score of the pedestrian protection head is improved in the collision test. The invention also discloses an automobile.)

1. Plaque device under windscreen, plaque body under windscreen, its characterized in that under windscreen: a first weakening hole is formed in the front windshield lower decorative plate body, and the first weakening hole is multiple in arrangement.

2. A front windshield lower trim apparatus according to claim 1, wherein: the first weakening hole is L-shaped and comprises a first hole section and a second hole section which are communicated, an included angle is formed between the length direction of the first hole section and the length direction of the second hole section, and the first hole section is located above the second hole section.

3. A front windshield lower trim apparatus according to claim 2, wherein: the length and the width of the first hole section are the same as the width of the second hole section, and the length of the first hole section is smaller than that of the second hole section.

4. A front windshield lower trim apparatus according to any one of claims 1 to 3, wherein: the air conditioner further comprises a water guide plate connected with the front windshield lower decorative plate body, and the water guide plate is located above the air inlet of the air conditioner.

5. A front windshield lower trim apparatus according to claim 4, wherein: the water guide plate comprises a first water guide part, a second water guide part connected with the first water guide part, a first connecting part connected with the second water guide part and a second connecting part connected with the first connecting part, and the first connecting part and the second connecting part are connected with the front windshield lower decorative plate body.

6. A front windshield lower trim apparatus according to claim 5, wherein: the first water guide part and the second water guide part are distributed in a V shape, the water guide plate further comprises a first reinforcing rib, the first reinforcing rib is connected with the first water guide part and the second water guide part, and the first reinforcing rib extends from the first water guide part to the second water guide part.

7. A front windshield lower trim apparatus according to claim 5 or 6, wherein: the water guide plate further comprises a third water guide part and a fourth water guide part connected with the third water guide part, the fourth water guide part is connected with the second connecting part, and the first connecting part and the second connecting part are located between the second water guide part and the fourth water guide part.

8. A front windshield lower trim apparatus according to claim 7, wherein: the third water guide part and the fourth water guide part are distributed in a V shape, the water guide plate further comprises a second reinforcing rib, the second reinforcing rib is connected with the third water guide part and the fourth water guide part, and the second reinforcing rib extends from the third water guide part to the fourth water guide part.

9. A front windshield lower trim apparatus according to any one of claims 4 to 8, wherein: set up second weakening hole, third weakening hole and fourth weakening hole under the windscreen on the plaque body, second weakening hole, third weakening hole and fourth weakening hole all set up a plurality ofly, the second weakening hole is located the second weakening area, the third weakening hole is located the third weakening area, the fourth weakening hole is located the fourth weakening area, the second weakening area, the third weakening area and the fourth weakening area are arranged for following the length direction of plaque body under the windscreen in proper order, certain distance has between two adjacent weakening areas, the windscreen wiper motor is located the below of the non-weakening area of plaque body under the windscreen, the water deflector is located the below of second weakening hole.

10. An automobile, characterized in that: comprising a front windshield lower trim panel assembly according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of automobile parts, and particularly relates to a front windshield lower decorative plate device and an automobile.

Background

In recent years, with the continuous progress of automobile manufacturing technology, the safety measures of automobiles are increasingly perfected, so that the driving safety and the passenger protection are greatly improved. However, in a road traffic accident, pedestrians are often the largest victimized group, and through statistical analysis, pedestrian casualties account for about 30% of the total casualties. Therefore, it is of great importance to develop crash analysis studies for pedestrian safety, and also the irreparable liability of crash safety developers!

"pedestrian protection", as the name implies, is intended to protect pedestrians. It is a major direction of passive safety research, including all measures specifically designed for automobiles to mitigate injury to outside personnel by the automobile in an accident. And through the analysis of accidents, the human body collides with the front part of the vehicle in most human-vehicle collision accidents, and the collision speed between the pedestrian and the vehicle is less than 40km/h in about 2/3 human-vehicle collision accidents. Therefore, the collision speed is definitely required to be 40km/h in the guarantee protection collision working condition in the current C-NCAP management rule and C-IASI management method.

The 21-edition C-NCAP management rule row protection head collision region is changed from an original 18-edition envelope line 1000 to an envelope line 2100 to an envelope line 1000 to an envelope line 2300, and the region from the envelope line 2100 to the envelope line 2300 is basically a left column A and a right column A, and the collision point of the head at the position within 100mm from the normal direction of the windshield is a red point (the red point is a 0-point) according to the marking principle of a pedestrian protection test on the periphery of a lower beam of the windshield. Therefore, the pedestrian protection of the 21-edition C-NCAP management rule is mostly red points in an increased area compared with the area of the 18-edition C-NCAP management rule, and therefore, under the same new situation of score, the 21-edition C-NCAP management rule is more difficult to meet the requirement of the five-star score threshold line. The existing front windshield lower decorative plate device cannot meet the index requirements, and the pedestrian safety protection performance needs to be improved.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a front windshield lower trim plate device, aiming at improving the pedestrian safety protection performance at the collision speed of 40 km/h.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: plaque device under windscreen, including the plaque body under the windscreen, set up first weakening hole under the windscreen on the plaque body, first weakening hole sets up a plurality ofly.

The first weakening hole is L-shaped and comprises a first hole section and a second hole section which are communicated, an included angle is formed between the length direction of the first hole section and the length direction of the second hole section, and the first hole section is located above the second hole section.

The length and the width of the first hole section are the same as the width of the second hole section, and the length of the first hole section is smaller than that of the second hole section.

The front windshield lower decorative plate device further comprises a water guide plate connected with the front windshield lower decorative plate body, and the water guide plate is located above an air inlet of the air conditioner.

The water guide plate comprises a first water guide part, a second water guide part connected with the first water guide part, a first connecting part connected with the second water guide part and a second connecting part connected with the first connecting part, and the first connecting part and the second connecting part are connected with the front windshield lower decorative plate body.

The first water guide part and the second water guide part are distributed in a V shape, the water guide plate further comprises a first reinforcing rib, the first reinforcing rib is connected with the first water guide part and the second water guide part, and the first reinforcing rib extends from the first water guide part to the second water guide part.

The water guide plate further comprises a third water guide part and a fourth water guide part connected with the third water guide part, the fourth water guide part is connected with the second connecting part, and the first connecting part and the second connecting part are located between the second water guide part and the fourth water guide part.

The third water guide part and the fourth water guide part are distributed in a V shape, the water guide plate further comprises a second reinforcing rib, the second reinforcing rib is connected with the third water guide part and the fourth water guide part, and the second reinforcing rib extends from the third water guide part to the fourth water guide part.

Set up second weakening hole, third weakening hole and fourth weakening hole under the windscreen on the plaque body, second weakening hole, third weakening hole and fourth weakening hole all set up a plurality ofly, the second weakening hole is located the second weakening area, the third weakening hole is located the third weakening area, the fourth weakening hole is located the fourth weakening area, the second weakening area, the third weakening area and the fourth weakening area are arranged for following the length direction of plaque body under the windscreen in proper order, certain distance has between two adjacent weakening areas, the windscreen wiper motor is located the below of the non-weakening area of plaque body under the windscreen, the water deflector is located the below of second weakening hole.

The invention also provides an automobile comprising the front windshield lower decorative plate device.

According to the front windshield lower decorative plate device, the pedestrian safety protection performance at the collision speed of 40km/h can be improved by weakening the structure of the front windshield lower decorative plate, so that the collision score of the pedestrian protection head is improved in the collision test.

Drawings

FIG. 1 is a schematic view of the construction of a front windshield lower trim panel assembly of the present invention;

FIG. 2 is another perspective view of the front windshield lower trim apparatus of the present invention;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a schematic view of the assembly of the front windshield lower trim panel assembly and the gutter assembly of the present invention;

FIG. 5 is an assembled front elevation view of a front windshield lower trim panel assembly and flume assembly of the present invention;

FIG. 6 is a schematic view of the engagement of the front windshield lower trim panel assembly of the present invention with the windshield;

FIG. 7 is a schematic cross-sectional view A-A of FIG. 6;

FIG. 8 is a schematic view of a structure of a water guide panel;

FIG. 9 is a schematic view of the bottom structure of the water guide plate;

FIG. 10 is a schematic view of the water guiding action of the water guide panel;

FIG. 11 is a comparison table of scores before and after optimization of point locations in rows 8 and 9 of a pedestrian head protection collision;

the labels in the above figures are: 1. a first flume end plate; 2. a launder body; 3. a second launder end plate; 4. a water guide plate; 401. a first connection portion; 402. a second connecting portion; 403. a first water guide part; 404. a second water guide part; 405. a third water guide part; 406. a fourth water guide part; 407. a first reinforcing rib; 408. a second reinforcing rib; 5. a front windshield lower decorative plate body; 501. a first weakening hole; 502. a second weakened aperture; 503. a third weakened aperture; 504. a fourth weakened aperture; 505. a first drain hole; 506. a second drain hole; 507. a third drain hole; 508. a fourth drain hole; 509. a first side surface; 510. a second side surface; 6. a windshield; 7. an air inlet of an air conditioner; 8. and a front wall baffle plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

It should be noted that, in the following embodiments, the terms "first", "second", "third" and "fourth" do not represent absolute differences in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.

As shown in fig. 1 to 10, the present invention provides a front windshield lower trim device, which includes a front windshield lower trim body 5, wherein a first weakening hole 501 is provided on the front windshield lower trim body 5, the first weakening hole 501 is an L-shaped hole, a plurality of first weakening holes 501 are provided, and all the first weakening holes 501 are sequentially arranged along a length direction of the front windshield lower trim body 5.

Specifically, as shown in fig. 1 to 6, the front windshield lower decorative plate body 5 is located above the launder assembly, the launder assembly includes a launder body 2, a first launder end plate 1 and a second launder end plate 3, the first launder end plate 1 and the second launder end plate 3 are fixedly connected to opposite ends of the launder body 2 in the length direction, the front windshield lower decorative plate body 5 is located above the launder body 2, the front windshield lower decorative plate body 5 is fixedly connected to the launder body 2, and the length directions of the front windshield lower decorative plate body 5 and the launder body 2 are parallel to the Y direction. The first weakening hole 501 is provided in a first side surface 509 of the lower front windshield trim body 5, the first side surface 509 of the lower front windshield trim body 5 is a surface of the lower front windshield trim body 5 facing the windshield 6, the first side surface 509 is disposed in an inclined manner, and the first weakening hole 501 is a hole formed by being recessed from the first side surface 509 toward the inside of the lower front windshield trim body 5. The first weakening hole 501 includes a first hole section and a second hole section that are communicated with each other, an included angle is formed between the length direction of the first hole section and the length direction of the second hole section, and the first hole section is located above the second hole section. The length and the width of the first hole section are the same as the width of the second hole section, and the length of the first hole section is smaller than that of the second hole section. The length direction of the first hole section is perpendicular to the Y direction and parallel to the X direction, and the width direction of the first hole section is parallel to the Y direction. The length direction of the second hole section is perpendicular to the Y direction, the width direction of the first hole section is parallel to the Y direction, an included angle is formed between the length direction of the second hole section and the Z direction, the included angle is an acute angle, and the second hole section extends towards the lower part of the first hole section in an inclined mode. The inner wall surface of each first weakening hole 501 is provided with a first drainage hole 505, the first drainage hole 505 enables the first weakening hole 501 to be communicated with the lower space of the front windshield lower trim body 5, water entering the first weakening hole 501 flows into the lower space of the front windshield lower trim body 5 through the first drainage hole 505, and the gutter body 2 is located in the lower space of the front windshield lower trim body 5. The air conditioner air inlet 7 and the launder body 2 are arranged oppositely, the air conditioner air inlet 7 is positioned below the windshield 6 and the front windshield lower decorative plate body 5, and the air conditioner air inlet 7 is used for enabling outside air to enter an air conditioning system of an automobile. The first drainage hole 505 is a through hole penetrating the front windshield lower trim body 5, and the length direction of the first drainage hole 505 is parallel to the length direction of the second hole section.

In this embodiment, as shown in fig. 1 and 3, an L-shaped weakened hole is formed in the front windshield lower decorative plate body 5, the length and the width of the first hole section are both 7mm, the width of the second hole section is 7mm, the bottom plane is reserved, and the left side and the right side perform single-sided or double-sided hollowing on the Y-side according to the requirements of weakened rigidity and aesthetic quality. The purpose of forming the weakening holes is to change the speed direction of rainwater through the L-shaped single-sided or double-sided hollow treatment of the rainwater of the decorative plate under the front windshield under the impact of heavy rain or heavy rain, so that the impact speed of the rainwater is reduced, the phenomenon of impacting the gutter channel body 2 is not easily generated, the occurrence of impacting water splash is reduced, and the phenomenon that the blower motor is burnt down due to the fact that the rainwater is sucked into the air inlet 7 of the air conditioner along with air is avoided.

As shown in fig. 1 to 6, a plurality of second, third and fourth weakening holes 502, 503 and 504 are provided in the lower front windshield trim body 5, the second, third and fourth weakening holes 502, 503 and 504 are provided, the second weakening hole 502 is located in a second weakening region, the third weakening hole 503 is located in a third weakening region, the fourth weakening hole 504 is located in a fourth weakening region, the second, third and fourth weakening regions are arranged in sequence along the length direction of the lower front windshield trim body 5, a distance is provided between adjacent two weakening regions, and the wiper motor is located below the non-weakening region of the lower front windshield trim body 5. The first weakened hole 501 is located on a first weakened area located on a first side 509 of the front windshield lower trim body 5, the second, third, and fourth weakened areas are located on a second side 510 of the front windshield lower trim body 5, the second weakened area, the third and fourth weakened areas are sequentially arranged along the length direction of the front windshield lower trim body 5, the first side 509 and the second side 510 of the front windshield lower trim body 5 are two opposite surfaces of the front windshield lower trim body 5, the first side 509 and the second side 510 are approximately at the same height, the second side 510 is obliquely arranged, the first side 509 and the second side 510 extend towards two sides below the top surface of the front windshield lower trim body 5, and the first side 509 and the second side 510 are connected with two opposite side edges of the top surface of the front windshield lower trim body 5. The second weakening hole 502, the third weakening hole 503 and the fourth weakening hole 504 are all holes formed by being recessed from the second side surface 510 toward the inside of the lower front windshield trim body 5, the second weakening hole 502, the third weakening hole 503 and the fourth weakening hole 504 are all L-shaped holes, all the second weakening holes 502 are sequentially arranged along the length direction of the lower front windshield trim body 5, all the third weakening holes 503 are sequentially arranged along the length direction of the lower front windshield trim body 5, and all the fourth weakening holes 504 are sequentially arranged along the length direction of the lower front windshield trim body 5.

As shown in fig. 2, the second weakened hole 502 includes a third hole section and a fourth hole section that are connected to each other, the length direction of the third hole section forms an angle with the length direction of the fourth hole section, and the third hole section is located above the fourth hole section. The length and the width of the third hole section are the same as the width of the fourth hole section, and the length of the third hole section is smaller than that of the fourth hole section. The length direction of the third hole section is vertical to the Y direction and parallel to the X direction, and the width direction of the third hole section is parallel to the Y direction. The length direction of the fourth hole section is perpendicular to the Y direction, the width direction of the third hole section is parallel to the Y direction, an included angle is formed between the length direction of the fourth hole section and the Z direction, the included angle is an acute angle, and the fourth hole section extends towards the lower part of the third hole section in an inclined mode. The inner wall surface of each second weakening hole 502 is provided with a second drain hole 506, the second drain hole 506 allows the second weakening hole 502 to communicate with the lower space of the front windshield lower trim body 5, water entering the second weakening hole 502 flows into the lower space of the front windshield lower trim body 5 through the second drain hole 506, and the gutter body 2 is located in the lower space of the front windshield lower trim body 5. The second water discharging hole 506 is a through hole penetrating the front windshield lower trim body 5, and the length direction of the second water discharging hole 506 is parallel to the length direction of the fourth hole section.

As shown in fig. 2, the third weakening hole 503 comprises a fifth hole section and a sixth hole section which are communicated with each other, the length direction of the fifth hole section forms an angle with the length direction of the sixth hole section, and the fifth hole section is located above the sixth hole section. The length and the width of the fifth hole section are the same as the width of the sixth hole section, and the length of the fifth hole section is smaller than the length of the sixth hole section. The length direction of the fifth hole section is perpendicular to the Y direction and parallel to the X direction, and the width direction of the fifth hole section is parallel to the Y direction. The length direction of the sixth hole section is perpendicular to the Y direction, the width direction of the fifth hole section is parallel to the Y direction, an included angle is formed between the length direction of the sixth hole section and the Z direction and is an acute angle, and the sixth hole section extends obliquely towards the lower part of the fifth hole section. A third water drain hole 507 is formed in the inner wall surface of each third weakening hole 503, the third water drain hole 507 enables the third weakening hole 503 to be communicated with the lower space of the front windshield lower trim body 5, water entering the third weakening hole 503 flows into the lower space of the front windshield lower trim body 5 through the third water drain hole 507, and the gutter body 2 is located in the lower space of the front windshield lower trim body 5. The third drain hole 507 is a through hole formed through the front windshield lower trim panel body 5, and the length direction of the third drain hole 507 is parallel to the length direction of the sixth hole section.

As shown in fig. 2, the fourth weakened hole 504 includes a seventh hole section and an eighth hole section that are connected to each other, the length direction of the seventh hole section forms an angle with the length direction of the eighth hole section, and the seventh hole section is located above the eighth hole section. The length and the width of the seventh hole section are the same as the width of the eighth hole section, and the length of the seventh hole section is smaller than the length of the eighth hole section. The length direction of the seventh hole section is perpendicular to the Y direction and parallel to the X direction, and the width direction of the seventh hole section is parallel to the Y direction. The length direction of the eighth hole section is perpendicular to the Y direction, the width direction of the seventh hole section is parallel to the Y direction, an included angle is formed between the length direction of the eighth hole section and the Z direction, the included angle is an acute angle, and the eighth hole section extends obliquely towards the lower part of the seventh hole section. The inner wall surface of each fourth weakened hole 504 is provided with a fourth drain hole 508, the fourth drain hole 508 allows the fourth weakened hole 504 to communicate with the lower space of the front windshield lower trim body 5, water entering the fourth weakened hole 504 flows into the lower space of the front windshield lower trim body 5 through the fourth drain hole 508, and the gutter body 2 is located in the lower space of the front windshield lower trim body 5. The fourth drainage hole 508 is a through hole penetrating the front windshield lower trim body 5, and the length direction of the fourth drainage hole 508 is parallel to the length direction of the eighth hole section.

As shown in fig. 1 to 6, the front windshield lower trim apparatus of the present invention further includes a water guide plate 4 connected to the front windshield lower trim body 5, the water guide plate 4 is located above the air inlet 7 of the air conditioner, the water guide plate 4 is located below the second weakening hole 502, and the water guide plate 4 is configured to receive water from the front windshield lower trim body 5. Because the decorative board under the front windshield on air conditioner air intake 7 carries out trompil weakening, has its certain influence to the work of air conditioning system's air-blower, consequently need investigate and verify the short circuit accident that the long-time moist of air conditioning air-blower caused and take place the risk when weakening. Therefore, in combination with the development standards and requirements, the air conditioner air inlet 7 is provided with a single-side L-shaped second weakening hole 502 which is just above the front windshield lower decorative plate body 5, is only far away from the side and has the length of 400mm in the Y direction, meanwhile, in order to prevent rainwater 1 (shown in figure 10) flowing into the installation part between the windshield 6 and the front windshield lower decorative plate body 5 and rainwater 2 (shown in figure 10) flowing into the single-side weakened hole above the air conditioner air inlet 7, water is generated due to the height difference between the front windshield lower decorative plate body 5 and the water flowing groove assembly, and finally flowing water or suction force generated when an air conditioner blower works is sucked into the air conditioner air inlet 7, so that the air conditioner blower is in a humid environment for a long time, and finally, the short circuit caused by the short circuit burns the blower, so that the water guide plate 4 which is approximately in a WV connection type and has the Y-direction dimension of 460mm is designed right above the air inlet 7 of the air conditioner. The water guide plate 4 is arranged to weaken the area of the front windshield lower decorative plate body 5 above the air conditioner air inlet 7 as much as possible, simultaneously avoid rainwater 1 flowing into the air conditioner air inlet 7 or absorb water splash splashed by the rainwater 2 as much as possible, but in order to ensure that the rain water guide plate can catch up rain or rainstorm for a long time (generally 45min), the rainfall and the impact force generated by the rainwater are adjusted, therefore, the material thickness of the water guide plate 4 is not less than 2.5mm, and the lifting of the rigidity to the maximum limit is met by designing the strip-shaped reinforcing rib.

As shown in fig. 2 and 5, in the present embodiment, the distance between the first weakened region and the first end of the front windshield lower trim body 5 is greater than the distance between the second weakened region and the first end of the front windshield lower trim body 5, the first and third weakened regions are on the same straight line parallel to the X direction, the length H2 of the second weakened region is 400mm, the length H3 of the third weakened region is 230mm, the length H4 of the fourth weakened region is 230mm, the distance between the fourth weakened region and the first end of the front windshield lower trim body 5 is greater than the distance between the fourth weakened region and the second end of the front windshield lower trim body 5, and the first and second ends of the front windshield lower trim body 5 are opposite ends in the length direction of the front windshield lower trim body 5. And a non-weakened area is arranged between the fourth weakened area and the second end face of the front windshield lower decorative plate body 5, a weakened hole is not formed in the non-weakened area, and the wiper motor is positioned below the non-weakened area. As shown in the middle of the area of the weakened hole of the lower front windshield trim panel in fig. 5: the double-sided weakening is performed in the middle of the double-sided weakening device, and the length in the Y direction is 230mm, so that the double-sided design can be performed for the following two purposes: rainwater can enter a water flowing groove through the lower decorative plate of the front windshield, so that the phenomenon that the long-time running resistance of the windscreen wiper is overlarge due to excessive water accumulation is avoided, and the service life of the windscreen wiper assembly is finally reduced; and the effect of double-sided weakening is more beneficial to the scoring of the collision point of the head of the pedestrian than the effect of single-sided weakening, so that no requirement is required for forming a hole above the decorative plate below the front windshield.

The opening hole weakening right above the wiper motor is avoided, the short-circuit accident caused by long-time water soaking of the wiper motor is reduced, and the design of the weakening opening hole is not required to be carried out on the decorative plate under the front windshield directly above the wiper motor. The design is that in order to avoid that accumulated water formed in a water flowing groove after insufficient water guiding of the water flowing groove flows over a wiper motor due to excessive rainwater passing through a front windshield lower decorative plate on the wiper motor and causes short circuit of the wiper motor, the front windshield lower decorative plate is required to be only allowed to carry out single-side L-shaped weakening design on the left half side front windshield lower decorative plate provided with the wiper motor, wherein the weakening hollow design is required not to exist right above the wiper motor, and therefore the single-side L-shaped weakening Y-direction size length of the left half side front windshield lower decorative plate is only 230 mm. And because the Y-direction size of the front windshield decorative plate on the whole vehicle reaches 1480mm, the integral rigidity cannot be too low, otherwise, the condition of inconvenient transportation and assembly can be caused, so a certain length is reserved between the three weakened areas without weakening design, and the convenience in transportation and assembly of the front windshield lower decorative plate is ensured. And finally, three-time practical vehicle verification is carried out within 45min, and the fact that no influence is caused on the air inlet 7 of the air conditioner, the wiper motor and the transportation and assembly is confirmed, and all indexes can meet the design requirements.

As shown in fig. 1 to 10, a gap is formed between the bottom surface of the front windshield lower trim body 5 and the windshield 6, rainwater can flow into the water guide plate 4 below from the gap between the bottom surface of the front windshield lower trim body 5 and the windshield 6, the water guide plate 4 is located above the air conditioner air inlet 7, the water guide plate 4 is used for blocking rainwater from the front windshield lower trim body 5 from entering the air conditioner air inlet 7, the water guide plate 4 receives rainwater flowing down from the gap between the bottom surface of the front windshield lower trim body 5 and the windshield 6 and the second water discharge hole 506 and guides the rainwater to the gutter body 2 below, the length of the water guide plate 4 is 400mm, the length direction of the water guide plate 4 is parallel to the Y direction, and the distance between the water guide plate 4 and the first end of the front windshield lower trim body 5 is smaller than the distance between the first weakened area and the first end of the front windshield lower trim body 5. The water guide plate 4 includes a first water guide portion 403, a second water guide portion 404 connected to the first water guide portion 403, a first connection portion 401 connected to the second water guide portion 404, and a second connection portion 402 connected to the first connection portion 401, and the first connection portion 401 and the second connection portion 402 are fixedly connected to the front windshield lower trim main body 5. The first water guide part 403 and the second water guide part 404 are distributed in a V shape, the first water guide part 403 and the second water guide part 404 are strip-shaped plates, the first water guide part 403 and the second water guide part 404 are arranged in an inclined manner, the length directions of the first water guide part 403 and the second water guide part 404 are parallel to the Y direction, the width direction of the first water guide part 403 is perpendicular to the Y direction, an included angle is formed between the width direction of the first water guide part 403 and the X direction and is an acute angle, an included angle is formed between the width direction of the first water guide part 403 and the width direction of the second water guide part 404 and is smaller than 180 degrees, the lower end of the first water guide part 403 is fixedly connected with the lower end of the second water guide part 404, the distance between the upper end of the first water guide part 403 and the windshield 6 is smaller than the distance between the lower end of the first water guide part 403 and the windshield 6, the upper end and the lower end of the first water guide part 403 are opposite ends in the width direction of the first water guide 403, that is, the first water guiding part 403 extends obliquely toward the upper side of the air inlet 7 of the air conditioner, so that a good rainwater blocking effect is achieved. The second water guide part 404 is located below a gap between the bottom surface of the front windshield lower trim panel body 5 and the windshield 6, the upper end of the second water guide part 404 is fixedly connected with the first connecting part 401, the upper end and the lower end of the second water guide part 404 are opposite ends of the second water guide part 404 in the width direction, and the height of the upper end of the second water guide part 404 is greater than that of the lower end. The heights of the two ends of the first water guide part 403 in the length direction are smaller than the height of the midpoint of the first water guide part 403 in the length direction, the midpoint of the first water guide part 403 in the length direction is located at the middle position of the first water guide part 403 in the length direction, that is, the height of the first water guide part 403 is gradually reduced from the midpoint to the two ends of the first water guide part 403 in the length direction, so that rainwater can flow towards the two ends and finally flow to the gutter body 2 below, and the flowing water is ensured to be smooth.

As shown in fig. 8 and 9, the water guide panel 4 further includes a first rib 407, the first rib 407 is connected to the first water guide part 403 and the second water guide part 404, the first rib 407 extends from the first water guide part 403 to the second water guide part 404, the first rib 407 is fixedly connected to the bottom surfaces of the first water guide part 403 and the second water guide part 404, and the first rib 407 is a strip rib. The first reinforcing rib 407 can increase the rigidity of the water guide panel 4. The first reinforcing rib 407 is provided in plurality, all the first reinforcing ribs 407 are sequentially arranged in the longitudinal direction of the first water guide portion 403, and the first reinforcing rib 407 has a V-shaped structure.

As shown in fig. 8 and 9, the water guide panel 4 further includes a third water guide part 405 and a fourth water guide part 406 connected to the third water guide part 405, the fourth water guide part 406 is connected to the second connection part 402, and the first connection part 401 and the second connection part 402 are located between the second water guide part 404 and the fourth water guide part 406. The third water guide part 405 and the fourth water guide part 406 are distributed in a V-shape, the third water guide part 405 and the fourth water guide part 406 are elongated plates, the third water guide part 405 and the fourth water guide part 406 are arranged in an inclined manner, the length directions of the third water guide part 405 and the fourth water guide part 406 are parallel to the Y direction, the width direction of the third water guide part 405 is perpendicular to the Y direction, an included angle is formed between the width direction of the third water guide part 405 and the X direction and is an acute angle, an included angle is formed between the width direction of the third water guide part 405 and the width direction of the fourth water guide part 406 and is an obtuse angle, the third water guide part 405 extends in an inclined manner toward the lower side of the fourth water guide part 406, and the fourth water guide part 406 extends in an inclined manner toward the lower side of the second connection part 402. The upper end of the third water guide part 405 is fixedly connected with the lower end of the fourth water guide part 406, the height of the lower end of the third water guide part 405 is smaller than that of the upper end of the third water guide part 405, and the upper end and the lower end of the third water guide part 405 are opposite ends of the third water guide part 405 in the width direction, so that a good water guide effect is achieved for rainwater. The fourth water guide part 406 is located below the second weakening hole 502, the upper end of the fourth water guide part 406 is fixedly connected with the second connecting part 402, the upper end and the lower end of the fourth water guide part 406 are opposite ends of the fourth water guide part 406 in the width direction, and the height of the upper end of the fourth water guide part 406 is greater than that of the lower end. The heights of the two ends of the third water guide part 405 in the length direction are smaller than the height of the midpoint of the third water guide part 405 in the length direction, the midpoint of the third water guide part 405 in the length direction is located at the middle position of the third water guide part 405 in the length direction, that is, the third water guide part 405 is a structure in which the height gradually decreases from the midpoint to the two ends in the length direction, so that rainwater can flow toward the two ends and finally flow to the gutter body 2 below, and the smooth flow of the rainwater is ensured.

As shown in fig. 8 and 9, the water guide panel 4 further includes a second rib 408, the second rib 408 is connected to the third water guide part 405 and the fourth water guide part 406, and the second rib 408 extends from the third water guide part 405 to the fourth water guide part 406. The second ribs 408 are fixedly connected to the bottom surfaces of the third water guide part 405 and the fourth water guide part 406, and the second ribs 408 are strip-shaped ribs. The second reinforcing rib 408 may improve the rigidity of the water guide panel 4. A plurality of second reinforcing ribs 408 are provided, all the second reinforcing ribs 408 are sequentially arranged in the longitudinal direction of the third water guide portion 405, and the second reinforcing ribs 408 have a V-shaped structure.

In this embodiment, the air deflector is welded to the front windshield lower decorative plate body 5, and 8 small circular holes on the water deflector 4 are welded to the corresponding positions of the front windshield lower decorative plate body 5 by a welding process, so as to meet design target requirements of connection strength and endurance reliability of the water deflector 4 and the front windshield lower decorative plate body 5.

As shown in fig. 5, the installation surfaces of the front windshield lower decorative plate body 5 and the launder body 2 are synchronously reduced by 15mm in the Z direction, the maximum limit is achieved in the Y direction, but the reduction of the height in the Z direction does not affect the first launder end plate 1 and the second launder end plate as much as possible, the reason is that the pedestrian protection head points above the two launder end plates are few, and the issue of the pedestrian protection head points is the requirement that the left and right front shock absorbers have a movement space in the Z direction, so if the left and right connecting plates of the automobile are newly developed, key parts around the two launder end plates are affected, and the two parts are newly developed or changed in the direction to meet the requirement of being matched with the two launder end plates for modification, so the two parts are not suggested to be changed from the viewpoint of cost performance. The first launder end plate 1, the second launder end plate and the launder body 2 are connected in a welding mode to form a launder assembly (the launder is welded and fixed), and then the front windshield lower mounting plate assembly and the launder assembly are connected and fixed in a snap fastener connection mode to finally form the assembly drawing shown in fig. 4.

The scheme of reducing the material thickness of the front windshield lower decorative plate body 5 from 3.0mm to 2.5mm can be implemented by weakening, but the material thickness can be designed by weakening after strict simulation analysis is carried out to confirm that the requirements of performance indexes such as rigidity, mode, durability, reliability and the like are met.

The invention is based on the innovation that the demand of pedestrian head protection score rate cannot be met by optimizing the modeling. The specific innovation points are as follows:

(1) the scoring result of the collision point of the pedestrian protection head is directly related to the Z-direction distance between the outer plate of the sending cover and a hard point below the sending cover assembly, and the score is higher when the score of the Z-direction distance is larger (full score limitation exists). Therefore, the Z-direction distance between the mounting surface and the engine cover outer plate is enlarged by sinking the mounting surface between the front windshield lower decorative plate body 5 and the launder, so that the head collision point score at the position is improved;

(2) another method for improving the score of the collision point of the pedestrian head is to reduce the rigidity of a collision contact object of a pedestrian head protector, and reduce the damage value (HIC) of the head protector by deforming and absorbing energy of the contact object, so as to improve the score of the collision point of the head. Therefore, on the premise of ensuring the performance index of the decorative plate under the front windshield, the rigidity is reduced by a method of reducing the material thickness; therefore, the material thickness of the front windshield lower decorative plate body 5 can be reduced from 3.0mm to 2.5mm through the analysis of the processing technology; secondly, the front windshield lower decorative plate body 5 has the functions of attractive appearance, flow guiding, wind blowing and rain falling prevention of a wiper motor and short circuit and burnout of an air conditioner blower caused by water inflow or water splash suction of an air inlet 7 of the air conditioner. Weakening the front windshield lower trim body 5 through the opening therefore takes into account and meets all of the above criteria. On the premise of structural design of the open hole and addition of the water guide plate 4, various index requirements of the lower decorative plate of the front windshield are met.

Through the two structural improvement schemes, through multi-wheel structural optimization and simulation analysis, and finally through 3-wheel 45-min rain-forcing real vehicle verification, the optimization scheme is finally confirmed to have no influence on the air inlet 7 of the air conditioner and the wiper motor, and the scheme can be continuously executed. After verification and continuous analysis and optimization are carried out, the score of the head collision point is finally improved by 0.3, the score is improved by 3%, and the improvement effect is obvious.

The front windshield lower decorative plate device with the structure has the following advantages:

(1) compared with the active bounce type regulation that the collision score of the pedestrian protection head is increased, the method is simpler and easier in technology.

(2) Compared with 2200 million pre-estimated developments of the active bounce type cover raising and 800 yuan addition in the aspects of development cost and single vehicle cost, the scheme only needs to invest 200 million of convection water tank bodies 2 for new development, and the single vehicle cost only rises by 20 yuan to meet the requirement of increasing the head score rate of the protection of the bank protection.

(3) Compared with the active pop-up type hair cover, the after-sale problem caused by misoperation can not occur. In addition, the after-sale maintenance cost is low, and the next-year premium is not affected basically.

(4) Compared with the active pop-up type engine cover, the engine cover has the advantages of simple disassembly and replacement and maintenance, lower requirement on the skills of after-sales maintenance personnel and less maintenance cost investment.

(5) Because the front windshield lower decorative plate body 5 and the water guide plate 4 are assembled, the assembly is completely the same as that before the improvement, and the assembly working hours and the assembly tools are not increased; however, the active pop-up hood needs to be additionally provided with a wire harness, a bracket, a sensor, a point exposure device and the like, so that the assembly time and the assembly tool are inevitably increased, the production efficiency is finally reduced, and the production cost investment is increased.

The invention also provides an automobile, which comprises the front windshield lower decorative plate device with the structure. The specific structure of the front windshield lower decorative plate device can refer to fig. 1 to 10, and is not described herein again. Since the automobile of the present invention includes the front windshield lower trim panel assembly in the above-described embodiment, it has all the advantages of the above-described front windshield lower trim panel assembly.

The X, Y, and Z directions in the above description are the longitudinal direction, the width direction, and the height direction of the automobile respectively in the automobile O-XYZ coordinate system. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.