WO2023109544A1 - 汽车及其后轮罩总成 - Google Patents

汽车及其后轮罩总成 Download PDF

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Publication number
WO2023109544A1
WO2023109544A1 PCT/CN2022/136496 CN2022136496W WO2023109544A1 WO 2023109544 A1 WO2023109544 A1 WO 2023109544A1 CN 2022136496 W CN2022136496 W CN 2022136496W WO 2023109544 A1 WO2023109544 A1 WO 2023109544A1
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Prior art keywords
rear wheel
wheel house
reinforcement structure
assembly
reinforcement
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PCT/CN2022/136496
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English (en)
French (fr)
Inventor
陈劲松
郑望
于铁丰
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蔚来汽车科技(安徽)有限公司
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Publication of WO2023109544A1 publication Critical patent/WO2023109544A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/16—Mud-guards or wings; Wheel cover panels
    • B62D25/18—Parts or details thereof, e.g. mudguard flaps

Definitions

  • the invention relates to the technical field of automobiles, and specifically provides an automobile and a rear wheel cover assembly thereof.
  • the car rear wheel cover assembly is an important part of the car. It is installed above the rear wheel for waterproofing, mud proofing and absorbing tire noise. It can effectively protect the rear wheel and prolong the service life of the rear wheel.
  • the rear wheel housing assembly of an automobile generally has a single reinforcing structure, which is connected with the rear floor frame assembly at the bottom, and connected with structures such as a coat rack or a thin plate at the top.
  • the chassis system needs to install and support the power battery.
  • the rear wheel cover assembly of the existing vehicle can no longer meet the durability of the vehicle, and the torsional rigidity is also insufficient. It will lead to problems such as fatigue cracking and abnormal noise in the body structure, which will directly affect the safety of passengers and driving experience.
  • this area needs a kind of new automobile and rear wheel housing assembly thereof to solve the above problems.
  • the present invention aims to solve the above-mentioned technical problems, that is, to solve the problems of low durability and torsional rigidity of the entire vehicle under the condition that the rear wheel cover assembly of the existing automobile adopts a single reinforcement structure.
  • the present invention provides a rear wheel house assembly for an automobile, the rear wheel house assembly includes a rear wheel house, a first rear wheel house reinforcing structure and a second rear wheel house reinforcing structure, the first The rear wheel house reinforcement structure is connected to the second rear wheel house reinforcement structure, and the first rear wheel house reinforcement structure and the second rear wheel house reinforcement structure are vertically arranged side by side on the rear wheel house,
  • the first rear wheel house reinforcement structure is a channel structure with a first cavity
  • the second rear wheel house reinforcement structure is a channel structure with a second cavity
  • the first rear wheel house reinforcement structure is located on the front side of the second rear wheel house reinforcement structure, and the rear side of the first rear wheel house reinforcement structure has a second rear wheel house reinforcement structure.
  • a flange structure, the front side of the second rear wheelhouse reinforcement structure has a second flange structure, and the first flange structure is connected to the second flange structure.
  • the first flange structure and the second flange structure are connected by structural glue and spot welding.
  • the first flange structure is fitted to the inner side of the rear wheel house, and the second flange structure is fitted to the inner side of the rear wheel house .
  • the front side of the first rear wheel house reinforcement structure has a third flanging structure, and the third flanging structure is attached to the inner side of the rear wheel house .
  • the rear side of the second rear wheel house reinforcement structure has a fourth flange structure, and the fourth flange structure is attached to the inner side of the rear wheel house .
  • the height of the highest point of the first rear wheel house reinforcing structure is lower than the height of the highest point of the second rear wheel house reinforcing structure.
  • the height of the lowest point of the first rear wheel house reinforcing structure is lower than the height of the lowest point of the second rear wheel house reinforcing structure.
  • the present invention also provides a car, which includes a rear floor frame assembly and the above-mentioned rear wheel house assembly, the rear wheel house assembly is connected to the rear floor frame assembly,
  • the rear wheel house assembly is the left rear wheel house assembly or the right rear wheel house assembly of the automobile.
  • the rear floor frame assembly includes a longitudinal beam structure and a first reinforcement structure and a second reinforcement structure arranged side by side on the longitudinal beam structure, the first reinforcement structure has a channel structure with a third cavity, the second reinforcing structure is a channel structure with a fourth cavity,
  • a part of the first rear wheelhouse reinforcement structure is arranged in the third cavity of the first reinforcement structure, and a part of the second rear wheelhouse reinforcement structure is arranged in the fourth cavity of the second reinforcement structure wherein, the second reinforcement structure is connected to the rear shock absorber of the automobile.
  • the present invention can improve the durability of the rear shock absorber of the automobile through the double-channel reinforcement structures arranged side by side, and at the same time improve the torsional stiffness of the vehicle body to meet the performance requirements of the entire vehicle, making the automobile
  • the rear wheel cover assembly can be applied to more models, such as electric vehicles, to avoid fatigue cracking and abnormal noise in the body structure, ensure the safety of passengers in the car, improve the driving experience of users, and enhance the user experience.
  • connection of the two channel structures is realized by a combination of structural glue and spot welding.
  • its strength and durability can be further improved, and the torsional rigidity can be further improved.
  • the automobile adopts the above-mentioned rear wheel house assembly, which can have the above-mentioned technical effect, and the first reinforcement structure is connected with the first rear wheel house reinforcement structure, and the second reinforcement structure is connected with the second rear wheel house reinforcement structure, And all reinforcement structures adopt a channel structure with a cavity, which can realize the automobile rear floor assembly together with the rear wheel cover to improve the strength, durability and torsional performance of the automobile.
  • Fig. 1 is the structural representation of the rear wheel housing assembly of automobile of the present invention
  • Fig. 2 is the power transmission path diagram of the rear wheel housing assembly of the automobile of the present invention
  • Fig. 3 is a schematic cross-sectional view of the dual-channel reinforcement structure of the rear wheel housing assembly of the automobile of the present invention.
  • the first rear wheel house reinforcement structure 2a. The first cavity of the first rear wheel house reinforcement structure;
  • the rear wheel cover assembly of the present invention can be applied to traditional fuel (such as gasoline or diesel) as power vehicles, or electric vehicles, or hybrid vehicles, etc., and the adjustment of this application object does not constitute a limitation of the present invention. limit.
  • the invention Based on the problem that the rear wheel housing assembly of existing automobiles adopts a single reinforcement structure and the low torsional rigidity of the existing automobile, the invention provides a kind of automobile and its rear wheel housing assembly, aiming to improve The strength, durability and torsional rigidity of the car can avoid fatigue cracking and abnormal noise in the body structure, ensure the safety of passengers in the car, improve the driving experience of the user, and enhance the user experience.
  • the terms “upper”, “lower”, “left”, “right”, “front”, “rear”, “inner”, “outer”, etc. indicate directions or positional relationships The term is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation or must be constructed and operated in a specific orientation, so it cannot be understood as Limitations on the Invention.
  • the terms “first”, “second”, “third” and “fourth” are only used for descriptive purposes, and should not be understood as indicating or implying relative importance.
  • X-axis corresponds to the front and rear direction (also can be called longitudinal direction) of automobile
  • Y-axis corresponds to In the left-right direction of the car (also called horizontal)
  • the Z-axis corresponds to the up-down direction of the car (that is, the height direction, also called vertical or vertical direction), specifically, the positive axis of the X-axis points to the rear of the car
  • the negative axis of the X-axis points to the front of the car
  • the positive axis of the Y-axis points to the right of the driver, which is also the right side of the car
  • the negative axis of the Y-axis points to the left of the driver, which is also the left side of the car
  • the positive axis of the Z-axis points to the driver's left, which is also the left side of
  • the automobile rear wheel house assembly of the present invention comprises rear wheel house 1, the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure 3, the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure
  • the rear wheel house reinforcement structure 3 is connected, the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure 3 are vertically arranged side by side on the rear wheel house 1, and the first rear wheel house reinforcement structure 2 has a first The channel structure of the cavity 2a, the second rear wheel house reinforcement structure 3 is a channel structure with the second cavity 3a.
  • the vertical arrangement of the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure 3 refers to the height of the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure 3 along the height of the car.
  • the rear wheel housing assembly structure can be mainly made by stamping steel plate welding process, of course, other process methods can also be used.
  • the first rear wheel house reinforcement structure 2 is located on the front side of the second rear wheel house reinforcement structure 3, the rear side of the first rear wheel house reinforcement structure 2 has a first flange structure 4, and the second The front side of the rear wheel house reinforcement structure 3 has a second flange structure 5 , and the first flange structure 4 is connected to the second flange structure 5 .
  • the first flange structure 4 and the second flange structure 5 are preferably connected by structural glue and spot welding, thereby improving the connection strength between the two, so that the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement Structure 3 is able to form a whole.
  • first flange structure 4 and the second flange structure 5 can also be connected in other ways, or the first flange structure 4 and the second flange structure 5 can be canceled, and the first rear wheel house can be directly
  • the reinforcement structure 2 is connected with the second rear wheelhouse reinforcement structure 3 .
  • the first rear wheel house reinforcement structure 2 has a first flange structure 4 and the second rear wheel house reinforcement structure 3 has a second flange structure 5
  • the second flange structure 5 is also fitted to the inner side of the rear wheel house 1, specifically, the first flanged structure 4 can be fully fitted to the inner side of the rear wheel house 1, or can be partially fitted to the inner side of the rear wheel house 1.
  • the inner side of the rear wheel house 1 is attached, and similarly, the second flange structure 5 can be all attached to the inner side of the rear wheel house 1, and also can be partially attached to the inner side of the rear wheel house 1.
  • the front side of the first rear wheel house reinforcement structure 2 has a third flange structure 6, the third flange structure 6 is attached to the inner side of the rear wheel house 1, and the rear side of the second rear wheel house reinforcement structure 3 There is a fourth flange structure 7, the fourth flange structure 7 is attached to the inner side of the rear wheel house 1, similarly to the foregoing, the third flange structure 6 and the fourth flange structure 7 are attached to the rear wheel house 1
  • the fitting method can also be full fitting or partial fitting.
  • the arrangement of the flange structure and the rear wheel house 1 can facilitate the connection between the flange structure and the rear wheel house 1, and can ensure that the first rear wheel house reinforcement structure 2 and the second rear wheel house reinforcement structure 3 The compactness of structure between rear wheel housing 1.
  • the height of the highest point of the first rear wheel house reinforcement structure 2 is lower than the height of the highest point of the second rear wheel house reinforcement structure 3, and the lowest point of the first rear wheel house reinforcement structure 2 is The height is lower than the height of the lowest point of the second rear wheelhouse reinforcement structure 3.
  • Those skilled in the art can flexibly set the heights of the first rear wheelhouse reinforcement structure 2 and the second rear wheelhouse reinforcement structure 3 in practical applications, specifically according to the rear wheelhouse 1 and the rear floor frame assembly of the automobile. set up.
  • the present invention also provides a kind of automobile, and this automobile comprises above-mentioned rear wheel housing assembly, and automobile also comprises rear floor framework assembly, and rear wheel housing assembly is connected with rear floor framework assembly, and rear wheel housing assembly of the present invention It can be the left rear wheel housing assembly of the automobile, and can also be the right rear wheel housing assembly of the automobile.
  • the rear floor frame assembly includes a longitudinal beam structure 8 and a first reinforcement structure 9 and a second reinforcement structure 10 arranged side by side on the longitudinal beam structure 8, the first reinforcement structure 9 has a third cavity 9a channel structure, the second reinforcement structure 10 is a channel structure with a fourth cavity 10a, a part of the first rear wheel house reinforcement structure 2 is set in the third cavity 9a of the first reinforcement structure 9, the second rear wheel A part of the cover reinforcement structure 3 is disposed in the fourth cavity 10 a of the second reinforcement structure 10 .
  • the first reinforcement structure 9, the second reinforcement structure 10, the first rear wheelhouse reinforcement structure 2 and the second rear wheelhouse reinforcement structure 3 all adopt a channel structure with a cavity.
  • the first rear wheel house reinforcement structure 2 can be cut in the horizontal direction, and the cross section of the first rear wheel house reinforcement structure 2 has a substantially square opening. Or roughly circular openings, or openings of other shapes, through such a channel structure, the torsional rigidity of the car can be greatly improved.
  • the cross-sectional size of the first reinforcement structure 9 is slightly larger than the cross-sectional size of the first rear wheel house reinforcement structure 2
  • the cross-sectional size of the second reinforcement structure 10 is slightly larger than the cross-sectional size of the second rear wheel house reinforcement structure 3, so that Ensure that part of the lower end of the first rear wheelhouse reinforcement structure 2 is set in the third cavity 9a of the first reinforcement structure 9, and a part of the lower end of the second rear wheelhouse reinforcement structure 3 is set in the fourth cavity of the second reinforcement structure 10 10a.
  • the rear shock absorber of the automobile is connected to the second reinforcement structure 10, specifically two screw joints can be set at point A in Figure 2, through two A bolt connects the second reinforcement structure 10 with the lower end of the rear shock absorber, the lower end of the first reinforcement structure 9 is connected with the beam 11, the upper end of the first rear wheelhouse reinforcement structure 2 is connected with the coat rack 12, and the first reinforcement structure 9 is connected with the coat rack 12.
  • the rear wheel house reinforcement structure 2 is connected with the first reinforcement structure 9 to form a dual-channel force transmission path.
  • the double-channel structure can increase the torsional rigidity by up to 14%.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种汽车及其后轮罩总成，后轮罩总成包括后轮罩（1）、第一后轮罩加强结构（2）和第二后轮罩加强结构（3），第一后轮罩加强结构（2）与第二后轮罩加强结构（3）相连，第一后轮罩加强结构（2）和第二后轮罩加强结构（3）沿竖向并排地设置在后轮罩（1）上，第一后轮罩加强结构（2）为具有第一空腔（2a）的通道结构，第二后轮罩加强结构（3）为具有第二空腔（3a）的通道结构。

Description

汽车及其后轮罩总成
相关申请的交叉引用
本申请要求2021年12月17日提交的、申请号为CN202123182715.8的中国专利申请的优先权，上述中国专利申请的全文内容通过引用的方式并入本申请。
技术领域
本发明涉及汽车技术领域，具体提供一种汽车及其后轮罩总成。
背景技术
汽车后轮罩总成是汽车的重要部件，其安装在后车轮上方，用于防水、防泥以及吸收轮胎噪音等，可有效地保护后车轮，延长后车轮的使用寿命。
现有技术中，汽车的后轮罩总成一般具有单个加强结构，其下与后地板骨架总成连接，上与衣帽架或者薄板等结构连接。随着电动汽车的不断发展和普及，底盘系统需要对动力电池进行安装和承力，现有汽车的后轮罩总成已经无法满足整车的耐久性能，扭转刚度也出现了不足的情况，这会导致车身结构出现疲劳开裂、异响等问题，会直接影响乘客的安全和驾驶感受。
鉴于此，本领域需要一种新的汽车及其后轮罩总成来解决上述问题。
发明内容
本发明旨在解决上述技术问题，即，解决现有汽车的后轮罩总成采用单加强结构的情况下整车耐久性能和扭转刚度低的问题。
在第一方面，本发明提供一种汽车的后轮罩总成，所述后轮罩总成包括后轮罩、第一后轮罩加强结构和第二后轮罩加强结构，所述第一后轮罩加强结构与所述第二后轮罩加强结构相连，所述第一后轮罩加强结 构和所述第二后轮罩加强结构沿竖向并排地设置在所述后轮罩上，
所述第一后轮罩加强结构为具有第一空腔的通道结构，所述第二后轮罩加强结构为具有第二空腔的通道结构。
在上述后轮罩总成的优选技术方案中，所述第一后轮罩加强结构位于所述第二后轮罩加强结构的前侧，所述第一后轮罩加强结构的后侧具有第一翻边结构，所述第二后轮罩加强结构的前侧具有第二翻边结构，所述第一翻边结构与所述第二翻边结构相连。
在上述后轮罩总成的优选技术方案中，所述第一翻边结构与所述第二翻边结构通过结构胶以及点焊的方式连接。
在上述后轮罩总成的优选技术方案中，所述第一翻边结构与所述后轮罩的内侧相贴合，所述第二翻边结构与所述后轮罩的内侧相贴合。
在上述后轮罩总成的优选技术方案中，所述第一后轮罩加强结构的前侧具有第三翻边结构，所述第三翻边结构与所述后轮罩的内侧相贴合。
在上述后轮罩总成的优选技术方案中，所述第二后轮罩加强结构的后侧具有第四翻边结构，所述第四翻边结构与所述后轮罩的内侧相贴合。
在上述后轮罩总成的优选技术方案中，所述第一后轮罩加强结构的最高点所处的高度低于所述第二后轮罩加强结构的最高点所处的高度。
在上述后轮罩总成的优选技术方案中，所述第一后轮罩加强结构的最低点所处的高度低于所述第二后轮罩加强结构的最低点所处的高度。
在第二方面，本发明还提供一种汽车，所述汽车包括后地板骨架总成和上述所述的后轮罩总成，所述后轮罩总成与所述后地板骨架总成连接，所述后轮罩总成为所述汽车的左后轮罩总成或右后轮罩总成。
在上述汽车的优选技术方案中，所述后地板骨架总成包括纵梁结构以及并排地设置在所述纵梁结构上的第一加强结构和第二加强结构，所述第一加强结构为具有第三空腔的通道结构，所述第二加强结构为具有第四空腔的通道结构，
所述第一后轮罩加强结构的一部分设置在所述第一加强结构的第三空腔中，所述第二后轮罩加强结构的一部分设置在所述第二加强结构的第四空腔中，所述第二加强结构与所述汽车的后减震器连接。
在采用上述技术方案的情况下，本发明能够通过并排设置的双通道 式加强结构来提高汽车后减震器处的耐久性能，同时提高车身的扭转刚度，满足整车的性能要求，使得汽车的后轮罩总成能够适用更多的车型，例如电动汽车，避免车身结构出现疲劳开裂和异响等，保证汽车内乘客的安全，提高用户的驾驶感受，提升用户体验。
进一步地，通过结构胶和点焊组合的方式实现两个通道结构的连接，在实现强连接的基础上，能够进一步提高其强度耐久性能，并且进一步提高扭转刚度。
进一步地，汽车采用了上述的后轮罩总成，能够具备上述的技术效果，且第一加强结构与第一后轮罩加强结构连接，第二加强结构与第二后轮罩加强结构连接，以及所有加强结构都采用具有空腔的通道结构，能够实现汽车后地板总成与后轮罩一起提高汽车的强度耐久性能和扭转性能。
附图说明
下面结合附图来描述本发明的优选实施方式，附图中：
图1是本发明的汽车的后轮罩总成的结构示意图；
图2是本发明的汽车的后轮罩总成的传力路径图；
图3是本发明的汽车的后轮罩总成的双通道加强结构的截面示意图。
附图标记列表：
1、后轮罩；
2、第一后轮罩加强结构；2a、第一后轮罩加强结构的第一空腔；
3、第二后轮罩加强结构；3a、第二后轮罩加强结构的第二空腔；
4、第一翻边结构；
5、第二翻边结构；
6、第三翻边结构；
7、第四翻边结构；
8、纵梁结构；
9、第一加强结构；9a、第一加强结构的第三空腔；
10、第二加强结构；10a、第二加强结构的第四空腔；
11、横梁；
12、衣帽架。
具体实施方式
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。例如，本发明的后轮罩总成能够应用于传统的以燃油(例如汽油或柴油)为动力的汽车，或者电动汽车，再或者混动汽车等，这种应用对象的调整不构成对本发明的限制。
基于背景技术指出的现有汽车的后轮罩总成采用单加强结构的情况下整车耐久性能和扭转刚度低的问题，本发明提供了一种汽车及其后轮罩总成，旨在提高汽车的强度耐久性能和扭转刚度，避免车身结构出现疲劳开裂和异响等，保证汽车内乘客的安全，提高用户的驾驶感受，提升用户体验。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”“前”、“后”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或部件必须具有特定的方位或必须以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，还需要说明的是，术语“第一”、“第二”、“第三”、“第四”仅用于描述目的，而不能理解为指示或暗示相对重要性。
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“设置”、“相连”、“连接”应做广义理解，例如，“连接”可以是可拆卸式连接，或一体式连接；可以是直接相连，也可以通过中间部件间接相连。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。
在本发明的描述以及附图中，为了便于理解，引入汽车通用坐标系中涉及的X轴、Y轴和Z轴，其中，X轴对应汽车的前后方向(也可称纵向)，Y轴对应于汽车的左右方向(也可称横向)，Z轴对应于汽车的上下方向(即高度方向，也可称竖向或竖直方向)，具体而言，X轴的正轴指向汽车的后方，X轴的负轴指向汽车的前方，Y轴的正轴指向驾驶 员的右方，也是汽车的右侧，Y轴的负轴指向驾驶员的左方，也是汽车的左侧，Z轴的正轴指向汽车的上方，Z轴的负轴指向汽车的下方。
如图1所示，本发明的汽车后轮罩总成包括后轮罩1、第一后轮罩加强结构2和第二后轮罩加强结构3，第一后轮罩加强结构2与第二后轮罩加强结构3相连，第一后轮罩加强结构2和第二后轮罩加强结构3沿竖向并排地设置在后轮罩1上，第一后轮罩加强结构2为具有第一空腔2a的通道结构，第二后轮罩加强结构3为具有第二空腔3a的通道结构。需要说明的是，第一后轮罩加强结构2和第二后轮罩加强结构3沿竖向设置指的是第一后轮罩加强结构2和第二后轮罩加强结构3沿汽车的高度方向设置，即第一后轮罩加强结构2与第二后轮罩加强结构3大体或完全沿Z轴方向设置。在本发明中，后轮罩总成结构可以主要以冲压钢板焊接工艺制成，当然也可以采用其他工艺方式。
优选地，继续参见图1，第一后轮罩加强结构2位于第二后轮罩加强结构3的前侧，第一后轮罩加强结构2的后侧具有第一翻边结构4，第二后轮罩加强结构3的前侧具有第二翻边结构5，第一翻边结构4与第二翻边结构5相连。第一翻边结构4与第二翻边结构5优选采用结构胶以及点焊的方式连接，从而提高两者之间的连接强度，使得第一后轮罩加强结构2与第二后轮罩加强结构3能够形成一个整体。当然，作为替代性地，第一翻边结构4与第二翻边结构5还可以采用其他方式连接，或者取消第一翻边结构4和第二翻边结构5，直接将第一后轮罩加强结构2与第二后轮罩加强结构3连接。
在第一后轮罩加强结构2具有第一翻边结构4且第二后轮罩加强结构3具有第二翻边结构5时，优选的是第一翻边结构4与后轮罩1的内侧相贴合，第二翻边结构5也与后轮罩1的内侧相贴合，具体地，第一翻边结构4可以是全部与后轮罩1的内侧相贴合，也可以是部分与后轮罩1的内侧相贴合，同样地，第二翻边结构5可以是全部与后轮罩1的内侧相贴合，也可以是部分与后轮罩1的内侧相贴合。
优选地，第一后轮罩加强结构2的前侧具有第三翻边结构6，第三翻边结构6与后轮罩1的内侧相贴合，第二后轮罩加强结构3的后侧具有第四翻边结构7，第四翻边结构7与后轮罩1的内侧相贴合，与前述类似 地，第三翻边结构6以及第四翻边结构7与后轮罩1的贴合方式也可以为全部贴合或者部分贴合。
在上述中，翻边结构与后轮罩1贴合设置能够便于翻边结构与后轮罩1之间的连接，且能够保证第一后轮罩加强结构2以及第二后轮罩加强结构3与后轮罩1之间结构的紧凑性。
可选地，第一后轮罩加强结构2的最高点所处的高度低于第二后轮罩加强结构3的最高点所处的高度，第一后轮罩加强结构2的最低点所处的高度低于第二后轮罩加强结构3的最低点所处的高度。本领域技术人员可以在实际应用中灵活地设置第一后轮罩加强结构2和第二后轮罩加强结构3的高度，具体可以根据后轮罩1以及汽车的后地板骨架总成进行灵活地设置。
此外，本发明还提供一种汽车，该汽车包括上述的后轮罩总成，汽车还包括后地板骨架总成，后轮罩总成与后地板骨架总成连接，本发明的后轮罩总成可以为汽车的左后轮罩总成，还可以为汽车的右后轮罩总成。
如图2所示，后地板骨架总成包括纵梁结构8以及并排地设置在纵梁结构8上的第一加强结构9和第二加强结构10，第一加强结构9为具有第三空腔9a的通道结构，第二加强结构10为具有第四空腔10a的通道结构，第一后轮罩加强结构2的一部分设置在第一加强结构9的第三空腔9a中，第二后轮罩加强结构3的一部分设置在第二加强结构10的第四空腔10a中。第一加强结构9、第二加强结构10、第一后轮罩加强结构2和第二后轮罩加强结构3都采用具有空腔的通道结构，以第一后轮罩加强结构2为例，如图3所示，第一后轮罩加强结构2可以是将第一后轮罩加强结构2在水平方向上截开，第一后轮罩加强结构2的截面具有大致为方形的通口，或者大致为圆形的通口，或者其他形状的通口，通过这样的通道结构，能够大幅度提升汽车的扭转刚度。在实际应用中，第一加强结构9的截面尺寸略大于第一后轮罩加强结构2的截面尺寸，第二加强结构10的截面尺寸略大于第二后轮罩加强结构3的截面尺寸，从而保证第一后轮罩加强结构2的下端一部分设置在第一加强结构9的第三空腔9a中，第二后轮罩加强结构3的下端一部分设置在第二加强结构 10的第四空腔10a中。
以图2所示的汽车的左后轮罩总成为例，第二加强结构10上连接有汽车的后减震器，具体可以在图2中的A点处设置两个螺接件，通过两个螺接件将第二加强结构10与后减震器的下端连接，第一加强结构9的下端与横梁11连接，第一后轮罩加强结构2的上端与衣帽架12连接，第一后轮罩加强结构2与第一加强结构9连接，从而形成双通道式的传力路径，汽车的后减震器处的力经过第二后轮罩加强结构3向上传递，横梁11处的力经过第一后轮罩加强结构2向上传递，如图2所示的箭头方向，双通道式的结构能够使扭转刚度提高达14％。
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。

Claims (10)

  1. 一种汽车的后轮罩总成，其特征在于，所述后轮罩总成包括后轮罩(1)、第一后轮罩加强结构(2)和第二后轮罩加强结构(3)，所述第一后轮罩加强结构(2)与所述第二后轮罩加强结构(3)相连，所述第一后轮罩加强结构(2)和所述第二后轮罩加强结构(3)沿竖向并排地设置在所述后轮罩(1)上，
    所述第一后轮罩加强结构(2)为具有第一空腔(2a)的通道结构，所述第二后轮罩加强结构(3)为具有第二空腔(3a)的通道结构。
  2. 根据权利要求1所述的后轮罩总成，其特征在于，所述第一后轮罩加强结构(2)位于所述第二后轮罩加强结构(3)的前侧，所述第一后轮罩加强结构(2)的后侧具有第一翻边结构(4)，所述第二后轮罩加强结构(3)的前侧具有第二翻边结构(5)，所述第一翻边结构(4)与所述第二翻边结构(5)相连。
  3. 根据权利要求2所述的后轮罩总成，其特征在于，所述第一翻边结构(4)与所述第二翻边结构(5)通过结构胶以及点焊的方式连接。
  4. 根据权利要求2所述的后轮罩总成，其特征在于，所述第一翻边结构(4)与所述后轮罩(1)的内侧相贴合，所述第二翻边结构(5)与所述后轮罩(1)的内侧相贴合。
  5. 根据权利要求2所述的后轮罩总成，其特征在于，所述第一后轮罩加强结构(2)的前侧具有第三翻边结构(6)，所述第三翻边结构(6)与所述后轮罩(1)的内侧相贴合。
  6. 根据权利要求2所述的后轮罩总成，其特征在于，所述第二后轮罩加强结构(3)的后侧具有第四翻边结构(7)，所述第四翻边结构(7)与所述后轮罩(1)的内侧相贴合。
  7. 根据权利要求1至6中任一项所述的后轮罩总成，其特征在于，所述第一后轮罩加强结构(2)的最高点所处的高度低于所述第二后轮罩加强结构(3)的最高点所处的高度。
  8. 根据权利要求1至6中任一项所述的后轮罩总成，其特征在于，所述第一后轮罩加强结构(2)的最低点所处的高度低于所述第二后轮罩加强结构(3)的最低点所处的高度。
  9. 一种汽车，其特征在于，所述汽车包括后地板骨架总成和权利要求1至8中任一项所述的后轮罩总成，所述后轮罩总成与所述后地板骨架总成连接，所述后轮罩总成为所述汽车的左后轮罩总成或右后轮罩总成。
  10. 根据权利要求9所述的汽车，其特征在于，所述后地板骨架总成包括纵梁结构(8)以及并排地设置在所述纵梁结构(8)上的第一加强结构(9)和第二加强结构(10)，所述第一加强结构(9)为具有第三空腔(9a)的通道结构，所述第二加强结构(10)为具有第四空腔(10a)的通道结构，
    所述第一后轮罩加强结构(2)的一部分设置在所述第一加强结构(9)的第三空腔(9a)中，所述第二后轮罩加强结构(3)的一部分设置在所述第二加强结构(10)的第四空腔(10a)中，所述第二加强结构(10)与所述汽车的后减震器连接。
PCT/CN2022/136496 2021-12-17 2022-12-05 汽车及其后轮罩总成 WO2023109544A1 (zh)

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