WO2019110008A1 - 车辆前地板结构、铝合金挤出成型件和车辆 - Google Patents

车辆前地板结构、铝合金挤出成型件和车辆 Download PDF

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Publication number
WO2019110008A1
WO2019110008A1 PCT/CN2018/119802 CN2018119802W WO2019110008A1 WO 2019110008 A1 WO2019110008 A1 WO 2019110008A1 CN 2018119802 W CN2018119802 W CN 2018119802W WO 2019110008 A1 WO2019110008 A1 WO 2019110008A1
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Prior art keywords
vehicle
front floor
floor structure
beams
sill
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PCT/CN2018/119802
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English (en)
French (fr)
Inventor
靖海涛
程铭
杨传义
李硕
申学开
郑望
秦乐
程海东
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蔚来汽车有限公司
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Application filed by 蔚来汽车有限公司 filed Critical 蔚来汽车有限公司
Priority to EP18886241.1A priority Critical patent/EP3722187A4/en
Publication of WO2019110008A1 publication Critical patent/WO2019110008A1/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
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded

Definitions

  • the invention relates to the technical field of automobiles, and in particular to a front floor structure of a vehicle, an aluminum alloy extrusion molded part and a vehicle.
  • the present invention provides a vehicle front floor structure, an aluminum alloy extrusion molded article, and a vehicle, thereby effectively solving the above problems and other problems existing in the prior art.
  • a vehicle front floor structure comprising a left sill, a right sill, and a cross member disposed between the left sill and the right sill, wherein
  • the beam includes at least two first type of beams that are spaced apart, the at least two first type of beams are aluminum alloy extruded pieces and are configured to have different cross-sectional shapes from each other for the left sill and And/or the amount of deformation of the right sill when the vehicle is subjected to a side impact strike, the setting requirement comprising causing the deformed left sill and/or the right sill to be mounted on at least a portion of the beam The set distance is maintained between the upper vehicle components.
  • the beam further comprises at least one second type of beam which is a steel stamped part and is spaced apart from the at least two first type of beams.
  • the at least one second type of beam and the at least two first type of beams are configured to have different cross-sectional shapes from each other for causing the left threshold And/or the amount of deformation of the right sill when the vehicle is subjected to a side impact strike meets the set requirement.
  • the beams are all composed of the first type of beams.
  • all of the beams are arranged to have a reduced cross-sectional area along a longitudinal direction from the vehicle head toward the tail of the vehicle.
  • At least two of the beams are configured to have the same sectional shape as each other.
  • all the beams are fixed to the left sill and the right sill by a mechanical connection, and the at least one of the beams is provided with one or more for The vehicle component is mounted with a mounting portion attached thereto.
  • an aluminum alloy extrusion molded article for the first type of beam in the front floor structure of a vehicle according to any of the above.
  • a vehicle comprising the vehicle front floor structure according to any of the above, or comprising at least two aluminum alloy extrusion moldings as described above Pieces.
  • the vehicle comprises a purely electric vehicle, a hybrid vehicle.
  • the front floor structure of the vehicle adopting the invention can significantly enhance the strength of the body beam, thereby improving the side impact performance of the vehicle, and particularly satisfying the side impact requirement of the new energy vehicle, thereby effectively protecting the installation under the vehicle body.
  • the various vehicle components enhance the safety and reliability of the vehicle.
  • the present invention can adapt to various vehicle performances by flexibly designing, selecting, and adjusting various types of aluminum alloy extruded parts having suitable structural shapes, sizes, and the like, and arranging them reasonably in the front floor structure of the vehicle. Coaxial models, different track models, etc. are required, so the adaptability and expandability of the present invention are quite strong.
  • Figure 1 is a top plan view showing an embodiment of a front floor structure of a vehicle according to the present invention.
  • the front floor structure of the vehicle includes a left sill 1, a right sill 2, and three cross members 3 disposed therebetween, which will be specifically described below in conjunction with this embodiment.
  • the prior art usually uses steel stamping sheets to form and arrange them on the front floor of the vehicle.
  • the amount of intrusion of the threshold in the side collision hit is still large, and Various vehicle parts installed in the lower part of the vehicle body are effectively protected.
  • the above-mentioned beam 3 in the front floor structure of the vehicle is entirely made of an aluminum alloy extrusion molded piece, or two aluminum alloy extrusion molded parts may be combined.
  • a steel stamped part is formed, and in particular, without departing from the gist of the invention, the three beams 3 can each be constructed to have completely different cross-sectional shapes and be spaced apart from each other by an optional distance.
  • the arrangement is arranged in the front floor area of the vehicle, in such a way that the deformation amount of the left sill 1 and/or the right sill 2 when the vehicle is subjected to the side impact strike can meet the set requirement, that is, the vehicle body is provided with a beam of sufficient strength, thereby improving The side impact performance of the vehicle.
  • the above setting requirements may include maintaining a set distance between the deformed left sill and/or the right sill and the vehicle component mounted on the beam 3, that is, the intrusion of the sill needs to be deformed.
  • the vehicle components such as battery packs that are mounted on the lower portion of the vehicle body can be protected by a small amount, and these vehicle components may be mounted to the vehicle body by, for example, a mounting portion 4 (such as a mounting hole or the like) provided on the beam 3.
  • a mounting portion 4 such as a mounting hole or the like
  • the amount of deformation is to ensure that the distance between the left sill and/or the right sill and the vehicle component such as the battery pack is kept at a set distance, and the deformation amount of the left sill and/or the right sill cannot be larger than this setting.
  • the fixed distance the purpose of which is that the deformation of the left sill and/or the right sill does not affect the vehicle components such as the battery pack, so that it does not cause, for example, the battery pack to be subjected to the left threshold and/or Deformation of the right threshold and cause problems (such as leakage, etc.) on security.
  • the beams 3 in the front floor structure of the vehicle may optionally be arranged in a manner having a reduced cross-sectional area in the longitudinal direction A of the vehicle head to the rear of the vehicle, In order to satisfy the safety performance such as durability and collision, the space is reduced as much as possible.
  • the specific arrangement number, arrangement position, structural shape and size of the aluminum alloy extrusion molding or steel stamping molding used as the beam 3 in the present invention are not deviated from the gist of the present application. It can be specifically designed and selected according to the actual application, so as to better meet the requirements of the structural strength of the vehicle body, the safety of the vehicle side impact, and the reliability of the vehicle.
  • the above-described beam 3 can be fixedly coupled to the left sill 1 and the right sill 2 by any suitable mechanical connection.
  • mechanical attachment means include, but are not limited to, riveting, welding, fastener attachment, etc., and in practice, it is also permitted to combine two or more of these mechanical connections.
  • an aluminum alloy extrusion molded article for a beam in a front floor structure of a vehicle is also provided.
  • an aluminum alloy extrusion molded part it has good bending and torsion resistance, so that the cross-sectional shape can be adjusted according to actual needs to adapt to different vehicle performance requirements, and without departing from the gist of the present invention.
  • Their actual layout position can be adjusted according to the demand situation to meet the requirements of different wheelbase models, and the length of the aluminum alloy extrusion molded parts can also be adjusted according to the demand situation to meet the requirements of different wheelbase models. Since the aluminum alloy extrusion molded article has been described in detail above, it can be referred to these aforementioned contents, and the description thereof will not be repeated here.
  • a vehicle including, but not limited to, a pure electric vehicle, a hybrid vehicle, and the like.
  • a vehicle front floor structure designed in accordance with the present invention is configured on the vehicle, for example, the front floor structure of the vehicle may be secured between the front and rear of the vehicle; or the vehicle includes at least two designs in accordance with the present invention
  • An aluminum alloy extruded part, such as the beam 3 exemplarily shown in Fig. 1, is an aluminum alloy extruded part, and then the beam 3 is mounted on the front floor of the vehicle, and the vehicle includes the front floor.
  • the technical advantages of the present invention which are significantly superior to the prior art as described above can be fully utilized, thereby effectively enhancing the strength of the vehicle body beam and improving the side impact performance of the vehicle, in particular, being able to be protected to be installed in the lower part of the vehicle body.
  • Various vehicle components are protected from damage and improve the safety of the vehicle.

Abstract

一种车辆前地板结构、铝合金挤出成型件和车辆，车辆前地板结构包括左门槛（1）、右门槛（2）以及设置在左门槛（1）和右门槛（2）之间的多个横梁（3），横梁（3）包括被间隔布置的至少两个第一类横梁，至少两个第一类横梁均为铝合金挤出成型件并被构造成彼此具有不同的截面形状，用以使得左门槛（1）和/或右门槛（2）在车辆经受侧碰撞击时的变形量符合设定要求，设定要求包括使得变形后的左门槛（1）和/或右门槛（2）与安装悬置在至少一部分横梁上的车辆部件之间保持设定距离。

Description

车辆前地板结构、铝合金挤出成型件和车辆 技术领域
本发明涉及汽车技术领域，尤其涉及一种车辆前地板结构、铝合金挤出成型件和车辆。
背景技术
在人们的日常工作和生活中已经广泛使用各种类型的汽车，其安全可靠性日益成为关注重点。然而，现有车辆在安全设计方面仍然存在着一些缺陷和不足之处，未能获得有效解决。例如，随着科技的不断进步，诸如纯电动汽车、混合动力汽车等多种类型的新能源汽车日渐获得大量应用，但是这些新型汽车可能存在着车身较轻而强度不够高、在发生侧碰撞击时门槛变形侵入量较大等问题，从而难以为安装在车身下部的车辆部件(如电池包等)提供有效的保护，避免由于这些部件受损或破坏而可能进一步危害到车辆及人身安全。因此，很有必要针对包括上述情况在内的现有问题或不足之处进行研究和改进。
发明内容
有鉴于此，本发明提供了车辆前地板结构、铝合金挤出成型件和车辆，从而有效地解决了现有技术中存在的上述问题和其他方面的问题。
首先，根据本发明的第一方面，它提供了一种车辆前地板结构，其包括左门槛、右门槛以及设置在所述左门槛和所述右门槛之间的横梁，其特征在于，所述横梁包括被间隔布置的至少两个第一类横梁，所述至少两个第一类横梁均为铝合金挤出成型件并被构造成彼此具有不同的截面形状，用以使得所述左门槛和/或所述右门槛在车辆经受侧碰撞击时的变形量符合设定要求，所述设定要求包括使得变形后的所述左门槛和/或所述右门槛与安装悬置在至少一部分横梁上的车辆部件之间保持设定距离。
在根据本发明的车辆前地板结构中，可选地，所述横梁还包括至少一个第二类横梁，其为钢冲压成型件并且与所述至少两个第一类横梁间隔布置。
在根据本发明的车辆前地板结构中，可选地，所述至少一个第二类横梁和所述至少两个第一类横梁被构造成彼此具有不同的截面形状，用以使得所述左门槛和/或所述右门槛在车辆经受侧碰撞击时的变形量符合设定要求。
在根据本发明的车辆前地板结构中，可选地，所述横梁全部由所述第一类横梁组成。
在根据本发明的车辆前地板结构中，可选地，所有横梁被布置成沿着从车辆头部朝向车辆尾部的纵向方向具有减小的截面面积。
在根据本发明的车辆前地板结构中，可选地，所有横梁中至少两个横梁被构造成彼此具有相同的截面形状。
在根据本发明的车辆前地板结构中，可选地，所有横梁通过机械连接固连于所述左门槛和所述右门槛，并且所述至少一部分横梁上设置有一个或多个用于将所述车辆部件安装连接于其上的安装部。
其次，根据本发明的第二方面，也提供了一种用于如以上任一项所述的车辆前地板结构中的所述第一类横梁的铝合金挤出成型件。
再者，根据本发明的第三方面，还提供了一种车辆，所述车辆包括如以上任一项所述的车辆前地板结构、或者包括至少两个如以上所述的铝合金挤出成型件。
在根据本发明的车辆中，可选地，所述车辆包括纯电动车辆、混合动力车辆。
与现有技术相比较，采用本发明的车辆前地板结构能够显著增强车身横梁强度，从而提高车辆的侧碰性能，尤其可以满足新能源车辆的侧碰要求，由此有效保护了安装在车身下部的各种车辆部件，提升了整车的安全可靠性。此外，通过灵活设计、选用、调整具有合适结构形状、尺寸等的各类铝合金挤出成型件并将其合理地布置在车辆的前地板结构中，本发明可以适应各种不同车型性能、不同轴距车型、不同轮距车型等方面要求，因此本发明的适应性和扩展性相当强。
附图说明
以下将结合附图和实施例来对本发明的技术方案作进一步的详细描述，但是应当知道，这些附图仅是为解释目的而设计的，因此不作为本发明范围的限定。此外，除非特别指出，这些附图仅意在概念性地说明此处描述的结构构造，而不必要依比例进行绘制。
图1是一个根据本发明的车辆前地板结构实施例的俯视结构示意图。
具体实施方式
首先，需要说明的是，以下将以示例方式来具体说明车辆前地板结构、铝合金挤出成型件和车辆的具体结构、组成、特点和优点等，然而所有的描述仅是用来进行说明的，而不应将其理解为对本发明形成任何限制。
此外，除非在文中特别指出，在本发明技术方案中所涉及到的各部分、部件、特征或装置等是被允许再进行任意组合，以便形成可能未在本文中明确描述的更多实施方式。另外，为了简化图面起见，相同或相类似的零部件和特征在同一附图中可能仅在一处或若干处进行标示。
在图1中以俯视方式示意性地大致图示出了一个车辆前地板结构实施例的基本结构。在这个实施例中，该车辆前地板结构包括左门槛1、右门槛2和设置在它们之间的三个 横梁3，下面就结合这个实施例来进行具体说明。
对于车辆前地板结构中的横梁部件来讲，现有技术通常是采用钢制冲压板料来形成并将其布置在车辆前地板上，然而门槛在侧碰撞击中的侵入量仍然较大，无法使得安装在车身下部的各种车辆部获得有效保护。然而，不同于这些现有技术，根据本发明的设计思想，在车辆前地板结构中的上述横梁3是全部采用铝合金挤出成型件，或者也可以结合采用两个铝合金挤出成型件和一个钢冲压成型件来组成，并且尤其在不脱离本发明主旨的情况下，可以将这三个横梁3分别构造成具有完全不同的截面形状并将它们按照可选的彼此间隔距离、相互间隔选配方式布置在车辆前地板区域，以此方式使得左门槛1和/或右门槛2在车辆经受侧碰撞击时的变形量能够符合设定要求，即确保了车身具备足够强度的横梁，从而提高了车辆的侧碰性能。举例来讲，上述的设定要求可以包括：使得发生了变形后的左门槛和/或右门槛与安装悬置在横梁3上的车辆部件之间保持设定距离，即需要使得门槛的侵入变形量小而能够保护安装在车身下部的例如电池包等车辆部件(未示出)，这些车辆部件可能是通过例如设置在横梁3上的安装部4(如安装孔等)来装设到车身上的，由于在横梁3与车辆前地板本身之间存在着空间，例如电池包等车辆部件的至少一部分被置于这个空间内并且悬挂在横梁3上，当左门槛和/或右门槛在车辆经受侧碰撞击时，变形量要确保在左门槛和/或右门槛与例如电池包等车辆部件之间的距离保持一个设定距离，那么左门槛和/或右门槛的变形量就不能大于这个设定距离，其目的在于使得左门槛和/或右门槛的变形不会影响到例如电池包等车辆部件，如此不会导致例如电池包由于受到左门槛和/或右门槛的变形影响而带来安全上的问题(例如泄漏等)。
作为举例说明，如图1所示情形，可以将车辆前地板结构中的这些横梁3可选地按照在车辆头部至车辆尾部的纵向方向A上具有减小的截面面积的方式来进行布置，以使得在满足耐久、碰撞等安全性能的情况下，尽可能地减少占用空间。当然，应当指出的是，在本发明中用作横梁3的铝合金挤出成型或钢冲压成型件的具体设置数量、布置位置、结构形状及尺寸等方面，在不脱离本申请主旨的情况下，是可以根据实际应用情况来进行具体设计和选定的，以便能够更好地满足在车身结构强度、车辆侧碰安全性、整车可靠性等方面要求。
在根据本发明的车辆前地板结构中，可以采用任何适宜的机械连接方式将上述的横梁3固定连接到左门槛1和右门槛2上。此类机械连接方式包括但不限于铆接、焊接、固定件连接等，并且在实际应用中还允许结合使用这些机械连接方式当中的两种或更多种。
还需要指出的是，尽管以上讨论了在本发明中是将具有不同截面形状的横梁(采用铝合金挤出成型件、或者铝合金挤出成型件和钢冲压成型件)以合理的方式布置在车辆前地 板区域来实现本发明目标，然而本发明实际上也完全允许这些横梁当中的两个或更多个横梁在某些应用场合下可以具有相同的截面形状，以便能够更好地满足这些具体应用需求。
此外，根据本发明的另一个技术方案，也提供了一种用于车辆前地板结构中的横梁的铝合金挤出成型件。对于这样的铝合金挤出成型件来讲，其具有良好的抗弯及抗扭性能，因此可根据实际需求情况来调整截面形状以适应不同车型性能要求，并且在不脱离本发明主旨的情况下，它们的实际布置位置是可以根据需求情况来进行调整以适应不同轴距车型要求，而且铝合金挤出成型件的长度也是可以根据需求情况来进行调整以适应不同轮距车型要求。由于在前文中已经关于铝合金挤出成型件进行了详细说明，因此可以参阅这些前述内容，在此不再重复说明。
另外，根据本发明的又一个技术方案，还提供了一种车辆，这样的车辆包括但不局限于纯电动车辆、混合动力车辆等。在该车辆上配置了根据本发明所设计的车辆前地板结构，例如可以该车辆前地板结构固定到车辆的前舱与后围之间；或者，该车辆包括了至少两个根据本发明所设计的铝合金挤出成型件，例如在图1中示例性地图示出的横梁3就是采用了这样的铝合金挤出成型件，然后将该横梁3安装到车辆前地板上，而车辆包括该前地板。通过采用以上技术方案，可以充分利用如上所述的本发明显著优于现有技术的这些技术优势，由此有效增强车身横梁强度，提高车辆的侧碰性能，尤其能够保护到安装在车身下部的各种车辆部件避免受损，提升车辆的安全性能。
以上仅以举例方式来详细阐明根据本发明的车辆前地板结构、铝合金挤出成型件和车辆，这些个例仅供说明本发明的原理及其实施方式之用，而非对本发明的限制，在不脱离本发明的精神和范围的情况下，本领域技术人员还可以做出各种变形和改进。因此，所有等同的技术方案均应属于本发明的范畴并为本发明的各项权利要求所限定。

Claims (10)

  1. 一种车辆前地板结构，其包括左门槛、右门槛以及设置在所述左门槛和所述右门槛之间的多个横梁，其特征在于，所述横梁包括被间隔布置的至少两个第一类横梁，所述至少两个第一类横梁均为铝合金挤出成型件并被构造成彼此具有不同的截面形状，用以使得所述左门槛和/或所述右门槛在车辆经受侧碰撞击时的变形量符合设定要求，所述设定要求包括使得变形后的所述左门槛和/或所述右门槛与安装悬置在至少一部分横梁上的车辆部件之间保持设定距离。
  2. 根据权利要求1所述的车辆前地板结构，其中，所述横梁还包括至少一个第二类横梁，其为钢冲压成型件并且与所述至少两个第一类横梁间隔布置。
  3. 根据权利要求2所述的车辆前地板结构，其中，所述至少一个第二类横梁和所述至少两个第一类横梁被构造成彼此具有不同的截面形状，用以使得所述左门槛和/或所述右门槛在车辆经受侧碰撞击时的变形量符合设定要求。
  4. 根据权利要求1所述的车辆前地板结构，其中，所述横梁全部由所述第一类横梁组成。
  5. 根据权利要求1-4中任一项所述的车辆前地板结构，其中，所有横梁被布置成沿着从车辆头部朝向车辆尾部的纵向方向具有减小的截面面积。
  6. 根据权利要求1-4中任一项所述的车辆前地板结构，其中，所有横梁中至少两个横梁被构造成彼此具有相同的截面形状。
  7. 根据权利要求1-4中任一项所述的车辆前地板结构，其中，所有横梁通过机械连接固连于所述左门槛和所述右门槛，并且所述至少一部分横梁上设置有一个或多个用于将所述车辆部件安装连接于其上的安装部。
  8. 一种用于如权利要求1-7中任一项所述车辆前地板结构中的所述第一类横梁的铝合金挤出成型件。
  9. 一种车辆，其特征在于，所述车辆包括如权利要求1-7中任一项所述的车辆前地板结构、或者包括至少两个如权利要求8所述的铝合金挤出成型件。
  10. 根据权利要求9所述的车辆，其中，所述车辆包括纯电动车辆、混合动力车辆。
PCT/CN2018/119802 2017-12-08 2018-12-07 车辆前地板结构、铝合金挤出成型件和车辆 WO2019110008A1 (zh)

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