CN206841523U - The double longeron endergonic structures of major-minor formula - Google Patents
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Abstract
Description
技术领域technical field
本实用新型涉及汽车被动安全领域，具体涉及N1类轻型货车或微型客车前吸能纵梁。The utility model relates to the field of automobile passive safety, in particular to the front energy-absorbing longitudinal beam of N1 light trucks or minibuses.
背景技术Background technique
在被动安全领域，N1类轻型货车或微型客车由于前舱纵向设计空间有限，且车架截面通常较小，通过改变车架前端材料板厚形成的吸能纵梁在碰撞过程中容易产生中部弯折，变形模式不理想，吸能效果较差，从而使车身加速度峰值较高，前围及地板变形较大，严重影响乘员生存空间，这是工程师需要极力解决的技术问题。In the field of passive safety, due to the limited longitudinal design space of the front compartment of N1 light trucks or minibuses, and the frame section is usually small, the energy-absorbing longitudinal beam formed by changing the thickness of the front material plate of the frame is prone to bending in the middle during the collision process. Folding, the deformation mode is not ideal, and the energy absorption effect is poor. As a result, the peak acceleration of the vehicle body is high, and the deformation of the front wall and the floor is large, which seriously affects the living space of the occupants. This is a technical problem that engineers need to try their best to solve.
发明内容Contents of the invention
本实用新型旨在解决以上现有技术的问题。提出了一种有效分解碰撞过程中产生的能量，降低乘员伤害值的主副式双纵梁吸能结构。本实用新型的技术方案如下：The utility model aims to solve the above problems of the prior art. A main and auxiliary double longitudinal beam energy-absorbing structure is proposed to effectively decompose the energy generated in the collision process and reduce the damage value of the occupants. The technical scheme of the utility model is as follows:
一种主副式双纵梁吸能结构，其包括外凸防撞横梁、主吸能纵梁、副吸能纵梁、副吸能纵梁支座及副吸能纵梁支撑管，所述外凸防撞横梁的左右两端对称垂直连接着主吸能纵梁的前端，所述用于吸收碰撞能量的主吸能纵梁的后端连接着用于支承车身和动力总成等的车架纵梁，所述外凸防撞横梁的左右两端还对称垂直连接有副吸能纵梁，副吸能纵梁通过螺栓连接副吸能纵梁支座，所述副吸能纵梁支座两端固定连接着副吸能纵梁支撑管。A main and auxiliary double longitudinal beam energy-absorbing structure, which includes a convex anti-collision beam, a main energy-absorbing longitudinal beam, a secondary energy-absorbing longitudinal beam, a secondary energy-absorbing longitudinal beam support and a secondary energy-absorbing longitudinal beam support tube, the The left and right ends of the convex anti-collision beam are symmetrically and vertically connected to the front end of the main energy-absorbing longitudinal beam, and the rear end of the main energy-absorbing longitudinal beam for absorbing collision energy is connected to the frame for supporting the vehicle body and powertrain, etc. For the longitudinal beam, the left and right ends of the protruding anti-collision beam are also symmetrically and vertically connected with secondary energy-absorbing longitudinal beams, the secondary energy-absorbing longitudinal beams are connected to the secondary energy-absorbing longitudinal beam supports through bolts, and the secondary energy-absorbing longitudinal beam supports The two ends are fixedly connected with the auxiliary energy-absorbing longitudinal beam support pipe.
进一步的，所述外凸防撞横梁由两块外凸“L"型板和三块“U"型支撑板构成。其中上下两块外凸“L”型板分别与左右两块小的“U”型板在搭接部分进行焊接，然后通过小“U”型板上的螺栓孔与大“U”型底板进行连接。进一步的，所述吸能纵梁的主体结构由两块设置有变形诱导槽的U型板焊接构成，在主吸能纵梁前端焊接平板，并在板中焊接螺母，通过螺栓将主吸能纵梁与外凸防撞横梁连接，所述主吸能纵梁后端设置有三个成等腰三角形布置的螺栓通孔，通过螺栓将主吸能纵梁与车架纵梁连接。Further, the protruding anti-collision beam is composed of two protruding "L"-shaped plates and three "U"-shaped support plates. Among them, the upper and lower two protruding "L"-shaped plates are respectively welded with the left and right two small "U"-shaped plates at the overlapping parts, and then through the bolt holes on the small "U"-shaped plate and the large "U"-shaped bottom plate. connect. Further, the main structure of the energy-absorbing longitudinal beam is composed of two U-shaped plates with deformation induction grooves welded, a flat plate is welded at the front end of the main energy-absorbing longitudinal beam, and nuts are welded in the plate, and the main energy-absorbing The longitudinal beam is connected with the convex anti-collision beam, and the rear end of the main energy-absorbing longitudinal beam is provided with three bolt through holes arranged in an isosceles triangle, and the main energy-absorbing longitudinal beam is connected with the frame longitudinal beam through bolts.
进一步的，所述副吸能纵梁的主体结构由两块设置有变形诱导槽的U型板焊接构成，在副吸能纵梁前端焊接平板，并在板中焊接螺母，通过螺栓将副吸能纵梁与防撞横梁连接，在副吸能纵梁后端设置有两个螺栓通孔，通过螺栓将副吸能纵梁与副吸能纵梁支座连接。Further, the main structure of the auxiliary energy-absorbing longitudinal beam is composed of two U-shaped plates with deformation induction grooves welded, a flat plate is welded at the front end of the auxiliary energy-absorbing longitudinal beam, and nuts are welded in the plate, and the auxiliary energy-absorbing The energy-absorbing longitudinal beam is connected with the anti-collision beam, and two bolt through holes are arranged at the rear end of the auxiliary energy-absorbing longitudinal beam, and the auxiliary energy-absorbing longitudinal beam is connected with the auxiliary energy-absorbing longitudinal beam support through bolts.
进一步的，所述副吸能纵梁支座的主体结构由三块冲压钣金焊接而成，在支座与副吸能纵梁连接位置处设置有对应的安装螺栓通孔，通过螺栓将两者固连，后端与副吸能纵梁支撑管焊接。Further, the main structure of the secondary energy-absorbing longitudinal beam support is welded by three stamped sheet metals, and corresponding mounting bolt through holes are provided at the connection position between the support and the secondary energy-absorbing longitudinal beam, and the two The latter is fixedly connected, and the rear end is welded to the auxiliary energy-absorbing longitudinal beam support tube.
进一步的，所述副吸能纵梁支撑管两端分别与,车架纵梁焊接，车架纵梁为整车承重载体。Further, both ends of the auxiliary energy-absorbing longitudinal beam support tube are respectively welded to the frame longitudinal beam, which is the load-bearing carrier of the whole vehicle.
本实用新型的优点及有益效果如下：Advantage of the utility model and beneficial effect are as follows:
目前，大量N1类货车和微型面包车采用车架(大梁)式的非承载式车身结构，前端刚度较大。在正面碰撞过程中，车架易发生折弯变形，碰撞能量不能有效吸收，加速度峰值一般较大，前围侵入量得不到有效控制，对驾乘人员的保护不足，并且无论是高速还是低速碰撞，整体式的车架一旦发生变形，维修极为不便且成本较高。At present, a large number of N1 trucks and minivans adopt a non-load-bearing body structure of the frame (beam) type, and the front end is relatively rigid. In the process of frontal collision, the frame is prone to bending and deformation, the collision energy cannot be effectively absorbed, the acceleration peak value is generally large, the intrusion of the front wall cannot be effectively controlled, and the protection for the driver and passengers is insufficient. Collision, once the integral vehicle frame is deformed, maintenance is extremely inconvenient and costly.
本实用新型结构就是针对目前大量N1类货车和微型面包车在碰撞安全性和维修便利性等方面存在的不足而提出的。主副式双纵梁吸能结构能增加纵梁前段横向力，有效避免主吸能纵梁在碰撞过程中，由于截面较小且相对长度较长，而发生中段易折弯，变形模式不合理等现象。同时防撞横梁与左右副吸能纵梁可以变形吸能，有利于提高纵梁的吸能比例，有效降低整车碰撞后期加速度峰值和车身前围侵入量，有效保护驾乘人员安全。由于采用分体式设计，在车辆发生正面低速碰撞时，前防撞横梁产生的变形就能吸收大部分碰撞能量，双纵梁结构不会有变形，维修时仅需更换前防撞横梁，大大降低碰撞维修成本。本实用新型结构适用于N1类轻型货车和微型客车，尤其是车体前端纵向设计空间有限，车架截面较小的车体结构。该结构有利于控制吸能纵梁变形模式，有效增加吸能比例且安装便捷，适于广泛推广。The structure of the utility model is proposed aiming at the deficiencies in collision safety and maintenance convenience of a large number of N1 class trucks and minivans. The energy-absorbing structure of the main and auxiliary double longitudinal beams can increase the lateral force of the front section of the longitudinal beams, effectively avoiding the main energy-absorbing longitudinal beams during the collision process, due to the small section and relatively long length, the middle section is easy to bend, and the deformation mode is unreasonable And so on. At the same time, the anti-collision beam and the left and right auxiliary energy-absorbing longitudinal beams can deform and absorb energy, which is conducive to improving the energy absorption ratio of the longitudinal beams, effectively reducing the peak acceleration of the vehicle after collision and the intrusion of the front wall of the vehicle body, and effectively protecting the safety of drivers and passengers. Due to the split design, in the event of a frontal low-speed collision, the deformation of the front anti-collision beam can absorb most of the collision energy. Collision repair costs. The structure of the utility model is suitable for N1 light trucks and minibuses, especially the vehicle body structure with limited longitudinal design space at the front end of the vehicle body and small cross-section of the vehicle frame. The structure is beneficial to control the deformation mode of the energy-absorbing longitudinal beam, effectively increases the energy-absorbing ratio and is easy to install, and is suitable for widespread promotion.
附图说明Description of drawings
图1是本实用新型提供优选实施例结构总成示意图；Fig. 1 is a schematic diagram of the structural assembly of the preferred embodiment provided by the utility model;
图2为本实用新型前防撞横梁结构总成示意图；Fig. 2 is a schematic diagram of the front anti-collision beam structure assembly of the utility model;
图3a、3b、3c为本实用新型前防撞横梁板7结构示意图；Figures 3a, 3b, and 3c are structural schematic diagrams of the front anti-collision beam plate 7 of the present invention;
图4a、4b为本实用新型前防撞横梁板8结构示意图；Figures 4a and 4b are schematic structural views of the front anti-collision beam plate 8 of the present invention;
图5a、5b、5c、5d为本实用新型前防撞横梁板9结构示意图；Figures 5a, 5b, 5c, and 5d are schematic structural views of the front anti-collision beam plate 9 of the present invention;
图6为本实用新型主吸能纵梁结构总成示意图；Fig. 6 is a schematic diagram of the main energy-absorbing longitudinal beam structure assembly of the utility model;
图7a、7b为本实用新型主吸能纵梁板13结构示意图；Figures 7a and 7b are structural schematic diagrams of the main energy-absorbing longitudinal beam plate 13 of the present invention;
图8a、8b、8c为本实用新型主吸能纵梁“U”型板14结构示意图；Figures 8a, 8b, and 8c are structural schematic diagrams of the "U"-shaped plate 14 of the main energy-absorbing longitudinal beam of the present utility model;
图9a、9b、9c为本实用新型主吸能纵梁“U”型板15结构示意图；Figures 9a, 9b, and 9c are structural schematic diagrams of the "U"-shaped plate 15 of the main energy-absorbing longitudinal beam of the present utility model;
图10为本实用新型副吸能纵梁结构总成示意图；Fig. 10 is a schematic diagram of the utility model auxiliary energy-absorbing longitudinal beam structure assembly;
图11a、11b为本实用新型副吸能纵梁板24结构示意图；Figures 11a and 11b are structural schematic diagrams of the secondary energy-absorbing longitudinal beam plate 24 of the utility model;
图12a、12b、12c为本实用新型副吸能纵梁“U”型板25结构示意图；Figures 12a, 12b, and 12c are structural schematic diagrams of the utility model's secondary energy-absorbing longitudinal beam "U"-shaped plate 25;
图13a、13b、13c为本实用新型副吸能纵梁“U”型板26结构示意图；Figures 13a, 13b, and 13c are structural schematic diagrams of the utility model's secondary energy-absorbing longitudinal beam "U"-shaped plate 26;
图14为本实用新型纵梁支座结构总成示意图；Fig. 14 is a schematic diagram of the structural assembly of the longitudinal beam support of the utility model;
图15为本实用新型板34、35结构示意图；Fig. 15 is a structural schematic diagram of panels 34 and 35 of the present invention;
图16为本实用新型板36结构示意图；Fig. 16 is a structural schematic diagram of the panel 36 of the present invention;
图17为吸能纵梁支撑管结构示意图。Fig. 17 is a schematic diagram of the structure of the energy-absorbing longitudinal beam support tube.
具体实施方式detailed description
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、详细地描述。所描述的实施例仅仅是本实用新型的一部分实施例。The technical solutions in the embodiments of the present invention will be described clearly and in detail below in combination with the accompanying drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.
本实用新型解决上述技术问题的技术方案是，The technical scheme that the utility model solves the problems of the technologies described above is,
本主副式吸能纵梁由防撞横梁1、左右对称主吸能纵梁2、左右对称副吸能纵梁3、左右对称副吸能梁支座4、副吸能梁支撑管5构成。The main and auxiliary energy-absorbing longitudinal beams are composed of anti-collision beams 1, left-right symmetrical main energy-absorbing longitudinal beams 2, left-right symmetrical auxiliary energy-absorbing longitudinal beams 3, left-right symmetrical auxiliary energy-absorbing beam supports 4, and auxiliary energy-absorbing beam support pipes 5. .
如图2至图5所示的前防撞横梁结构由“U”型板7、8分别与“L”型板9 焊接构成。其中，“U”型钣板7上设置有安装孔10、11，“U”型板8包括左右两块，“L”型板9包括上下两块。The front anti-collision beam structure shown in Fig. 2 to Fig. 5 is formed by welding "U"-shaped plates 7, 8 and "L"-shaped plates 9 respectively. Wherein, the "U"-shaped plate 7 is provided with installation holes 10, 11, the "U"-shaped plate 8 includes two left and right pieces, and the "L"-shaped plate 9 includes two upper and lower pieces.
如图6至图9所示主吸能纵梁结构由板13与“U”型板14、15两两相互焊接构成。其中板13上的焊接螺母16与图3中的孔10对应，通过螺栓将防撞横梁总成与主吸能纵梁总成固连。“U”型板14上设置有17、19和20三种形式的变形诱导槽及螺栓孔18，“U”型板15上设置有21、23两种形式的变形诱导槽及螺栓孔22，孔18、22与架纵梁上的螺栓孔对应，通过螺栓将主吸能纵梁总成与车架纵梁固连。As shown in FIGS. 6 to 9 , the main energy-absorbing longitudinal beam structure is formed by welding two plates 13 and “U”-shaped plates 14 and 15 to each other. Wherein the welding nut 16 on the plate 13 corresponds to the hole 10 in FIG. 3 , and the anti-collision beam assembly and the main energy-absorbing longitudinal beam assembly are fixedly connected by bolts. The "U" type plate 14 is provided with three types of deformation induction grooves 17, 19 and 20 and bolt holes 18, and the "U" type plate 15 is provided with two types of deformation induction grooves 21 and 23 and bolt holes 22, The holes 18, 22 correspond to the bolt holes on the frame longitudinal beam, and the main energy-absorbing longitudinal beam assembly is fixedly connected with the vehicle frame longitudinal beam by bolts.
如图10至图13所示的副吸能纵梁结构由板24及“U”型板25、26构成，其中板24上设置的螺栓孔27与图3中的孔11对应，通过螺栓将防撞横梁总成与副吸能梁总成固连。“U”型板25上设置有28、30两种形式的变形诱导槽及螺栓孔29，“U”型板26上设置有31、33两种形式的变形诱导槽及螺栓孔32。The auxiliary energy-absorbing longitudinal beam structure shown in Figures 10 to 13 is composed of plates 24 and "U"-shaped plates 25, 26, wherein the bolt holes 27 set on the plates 24 correspond to the holes 11 in Figure 3, and the The anti-collision beam assembly is fixedly connected with the auxiliary energy-absorbing beam assembly. Two types of deformation induction grooves 28 and 30 and bolt holes 29 are provided on the "U"-shaped plate 25, and two types of deformation induction grooves 31 and 33 and bolt holes 32 are provided on the "U"-shaped plate 26.
如图14至图16所示的副吸能纵梁支座结构由板36分别与板34、35焊接构成。其中板36上设置有通孔37与图12中的孔29及图13中的孔32对应，通过螺栓将副吸能纵梁总成与副吸能纵梁支座总成固连。The supporting structure of the auxiliary energy-absorbing longitudinal beam shown in FIGS. 14 to 16 is formed by welding the plates 36 and 34 and 35 respectively. The plate 36 is provided with a through hole 37 corresponding to the hole 29 in FIG. 12 and the hole 32 in FIG. 13 , and the auxiliary energy-absorbing longitudinal beam assembly is fixedly connected with the auxiliary energy-absorbing longitudinal beam support assembly through bolts.
图14中副吸能纵梁支座与图17中副吸能纵梁支撑管烧焊连接。The auxiliary energy-absorbing longitudinal beam support in Fig. 14 is welded and connected with the auxiliary energy-absorbing longitudinal beam support pipe in Fig. 17 .
整个主副式双纵梁吸能结构不仅能够有效吸收整车高速正面碰撞时的能量，在低速碰撞时也能够起到积极的保护作用，降低碰撞维修成本。当车辆发生正面高速碰撞时，前防撞横梁首先变形吸收能量，在主副吸能纵梁诱导槽的作用下，双纵梁结构从前至后有序变形吸收能量，以减小碰撞过程中的加速度峰值和前围侵入量，最大限度的保护驾乘人员。当车辆发生正面低速碰撞时，前防撞横梁即会产生变形吸收碰撞能量，双纵梁结构不会有变形，维修时仅需更换前防撞横梁即可，大大降低碰撞维修成本。The entire main and auxiliary double longitudinal beam energy-absorbing structure can not only effectively absorb the energy of the vehicle in high-speed frontal collisions, but also play a positive role in protection during low-speed collisions, reducing collision maintenance costs. When the vehicle has a frontal high-speed collision, the front anti-collision beam first deforms to absorb energy, and under the action of the main and auxiliary energy-absorbing longitudinal beam induction grooves, the double longitudinal beam structure deforms and absorbs energy orderly from front to rear to reduce the impact during the collision Acceleration peak value and cowl intrusion, maximum protection of drivers and passengers. When the vehicle encounters a frontal low-speed collision, the front anti-collision beam will deform to absorb the collision energy, and the double longitudinal beam structure will not deform. During maintenance, only the front anti-collision beam needs to be replaced, which greatly reduces the cost of collision maintenance.
以上这些实施例应理解为仅用于说明本实用新型而不用于限制本实用新型的保护范围。在阅读了本实用新型的记载的内容之后，技术人员可以对本实用新型作各种改动或修改，这些等效变化和修饰同样落入本实用新型权利要求所限定的范围。The above embodiments should be understood as only for illustrating the utility model but not for limiting the protection scope of the utility model. After reading the content of the utility model, the skilled person can make various changes or modifications to the utility model, and these equivalent changes and modifications also fall within the scope defined by the claims of the utility model.
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| CN113276951A (en) * | 2021-07-01 | 2021-08-20 | 奇瑞商用车（安徽）有限公司 | Front vehicle body energy absorption structure and new energy vehicle |
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| CN113276951A (en) * | 2021-07-01 | 2021-08-20 | 奇瑞商用车（安徽）有限公司 | Front vehicle body energy absorption structure and new energy vehicle |
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