WO2025055543A1 - 一种发动机罩内板总成、发动机罩及汽车 - Google Patents

一种发动机罩内板总成、发动机罩及汽车 Download PDF

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Publication number
WO2025055543A1
WO2025055543A1 PCT/CN2024/105847 CN2024105847W WO2025055543A1 WO 2025055543 A1 WO2025055543 A1 WO 2025055543A1 CN 2024105847 W CN2024105847 W CN 2024105847W WO 2025055543 A1 WO2025055543 A1 WO 2025055543A1
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WO
WIPO (PCT)
Prior art keywords
plate
reinforcement plate
engine hood
inner panel
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/105847
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English (en)
French (fr)
Inventor
张菁
刘金阳
彭景辉
张向博
周大光
党诗源
王雁
刘晨
朱一男
温泉
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FAW Group Corp
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FAW Group Corp
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Filing date
Publication date
Application filed by FAW Group Corp filed Critical FAW Group Corp
Publication of WO2025055543A1 publication Critical patent/WO2025055543A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • 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
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • 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
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/12—Parts or details thereof

Definitions

  • the current engine hood structure adopts a steel one-piece structure, which generally includes a steel outer panel and an inner panel. Because the steel engine hood structure has high strength, generally no special support structure is filled between the outer panel and the inner panel.
  • weight-reducing holes are provided on the inner plate close to the engine, such as the inner plate of the engine hood and the engine hood having the same disclosed in CN 204750310 U.
  • the object of the present invention is to provide an engine hood inner panel assembly, an engine hood and a car, which significantly reduce the weight of the engine hood while meeting the structural strength of the engine hood.
  • the present invention provides the following scheme:
  • the present invention records an engine hood inner panel assembly, including an inner panel, and also including a lock reinforcement plate, an outer panel reinforcement plate and a hinge reinforcement plate;
  • the lock reinforcement plate is connected to the upper surface of the first edge of the inner panel;
  • the outer panel reinforcement plate is connected to the upper surface of the second edge of the inner panel;
  • the hinge reinforcement plate is connected to the upper surface of the inner panel on both sides of the outer panel reinforcement plate; the first edge and the second edge of the inner panel are arranged opposite to each other.
  • the lock reinforcement plate comprises
  • a lock reinforcement plate body on which second weight-reducing holes and second connecting portions are arranged at intervals;
  • a first supporting foot is arranged at one end of the lock reinforcement plate body
  • a second supporting foot is arranged at the other end of the lock reinforcement plate body
  • the first connection portion is disposed around the lock reinforcement plate body, the first support leg and the second support leg, and is used to connect the lock reinforcement plate to the inner plate.
  • a hinge reinforcement plate support foot recessed and arranged on one side of the lock reinforcement plate
  • the overlap portion is convexly arranged on the lock reinforcement plate and is arranged diagonally with the hinge reinforcement plate support foot;
  • the overlap edge is arranged at the edge of the lock reinforcement plate close to the support foot of the hinge reinforcement plate.
  • the outer plate reinforcement plate comprises
  • a second connecting arm is arranged at the other end of the outer reinforcing plate body, a fourth connecting portion is convexly provided on the first connecting arm, and third weight-reducing holes are provided on both sides of the fourth connecting portion;
  • the fifth connecting portion is disposed around the outer periphery of the outer reinforcing plate body, the first connecting arm and the second connecting arm, and is used to connect the outer plate reinforcing plate to the inner plate.
  • the inner plate includes a plurality of first weight-reducing holes
  • a supporting flange structure is provided on the inner plate surrounding the outer periphery of the first weight-reducing hole, and a connecting strip is provided on one side of the supporting flange structure close to the lock reinforcement plate, the outer plate reinforcement plate and the hinge reinforcement plate.
  • the connecting strip cooperates with the first connecting part, the overlapping part and the fifth connecting part to fix the lock reinforcement plate, the hinge reinforcement plate and the outer plate reinforcement plate.
  • the position of the inner plate corresponding to the lock reinforcement plate is provided with
  • the lock reinforcement plate support and limit portion is in a long strip shape and is convexly arranged on the inner plate; the lock reinforcement plate body is buckled on the lock reinforcement plate support and limit portion;
  • the first supporting leg positioning portion is distributed on both sides of the lock reinforcement plate supporting limit portion and is recessed on the inner plate.
  • the first supporting leg and the second supporting leg are fixedly connected to the first supporting leg positioning portion.
  • a second support foot positioning portion is provided at a position corresponding to the inner plate and the hinge reinforcement plate, and the second support foot positioning portion is recessed and arranged on the inner plate;
  • the second support foot positioning portion cooperates with the hinge reinforcement plate support foot to fix the hinge reinforcement plate.
  • the present invention describes an engine hood, including an outer panel, characterized in that it includes an engine hood inner panel assembly of the above structure;
  • the lock reinforcement plate, the hinge reinforcement plate and the outer panel reinforcement plate are connected between the outer panel and the inner panel.
  • a hinged arm assembly for connecting the hood to the vehicle body
  • the hinged arm assembly includes
  • a steering connecting arm one end of which is rotatably connected to the vehicle body connecting arm and the other end of which is connected to the engine hood fixing plate;
  • the engine hood fixing plate is connected to the steering connecting arm through a pivot structure, and a follower connecting plate is also connected between the engine hood fixing plate and the steering connecting arm.
  • FIG. 2 is a schematic structural diagram of an inner panel according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an embodiment of a lock reinforcement plate of the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of a hinge reinforcement plate of the present invention.
  • FIG. 5 is a schematic structural diagram of an embodiment of an outer panel reinforcement plate of the present invention.
  • FIG. 7 is an enlarged view of the structure at point A in FIG. 6 .
  • FIG. 8 is a top view of the structure of the embodiment shown in FIG. 7 .
  • FIG. 9 is a schematic diagram of the connection structure of the outer panel and the lock reinforcement plate, the hinge reinforcement plate and the outer panel reinforcement plate of the present invention.
  • FIG. 11 is a schematic structural diagram of the hinged arm assembly of the present invention.
  • FIG. 12 is a side view of the structure of the embodiment shown in FIG. 11 .
  • Inner plate 2. Lock reinforcement plate 3. Hinge reinforcement plate 4. Outer plate reinforcement plate 5. Outer plate (5) 6. Hinge connecting arm assembly 101. First supporting flange structure 1011. External plate reinforcing plate connecting strip 102. Second supporting flange structure 1021. Hinge reinforcement plate connecting strip 103. Third supporting flange structure 1031. Lock reinforcement plate connecting strip 104. The first weight reduction hole 105. First support leg positioning portion 106. Lock reinforcement plate support limiter 107. Second support foot positioning portion 201. Second weight reduction hole 202. First support leg 203. Second support leg 204. Lock reinforcement plate body 205. First connection part 206.
  • Second connection part 301 overlap 302, Hinge reinforcement plate support foot 303, side 401, the third weight reduction hole 402, first connecting arm 403, second connecting arm 404, External reinforcement plate body 405.
  • the terms “installed”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
  • installed should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
  • a lock reinforcement plate 2, an outer panel reinforcement plate 4 and a hinge reinforcement plate 3 for supporting the engine hood structure are fixed between the inner panel assembly and the outer panel, which not only play a role in strengthening the support of the engine hood space, but also strengthen the connection strength of supporting components such as the hinge and the engine hood locking structure.
  • the engine hood is made of aluminum alloy.
  • the outer plate is converted from 0.7mm steel plate to 0.95mm aluminum plate, the inner plate is converted from 0.55mm steel plate to 0.8mm aluminum plate, the lock reinforcement plate 2 is 1.2mm aluminum plate, the outer plate reinforcement plate 4 is 1.2mm aluminum plate, and the hinge reinforcement plate 3 is 1.5mm aluminum plate; while significantly reducing the weight of the engine hood, after CAE simulation calculation and actual testing, its rigidity can still meet the assembly performance of the engine hood.
  • the inner plate 1 is provided with a plurality of first weight-reducing holes 104; the first weight-reducing holes 104 are opened in the inner plate 1 region between the lock reinforcement plate 2, the outer plate reinforcement plate 4 and the hinge reinforcement plate 3;
  • a supporting flange structure is provided on the inner plate 1 surrounding the outer periphery of the first weight-reducing hole 104, and a connecting strip is provided on one side of the supporting flange structure close to the lock reinforcement plate 2, the outer plate reinforcement plate 4 and the hinge reinforcement plate 3.
  • the connecting strip cooperates with the first connecting portion 205, the overlapping portion 301 and the fifth connecting portion 407 to fix the lock reinforcement plate 2, the hinge reinforcement plate 3 and the outer plate reinforcement plate 4.
  • first weight-reducing holes 104 there are 7 first weight-reducing holes 104, and a whole circle of glue is applied to the top of each first weight-reducing hole 104, and the glue is evenly distributed in the opening area of the first weight-reducing hole 104.
  • the inner and outer panel structures are connected by the supporting glue of the raised first weight-reducing holes 104, which not only makes the glue grooves more evenly coated, but also makes the inner and outer panel cavities well supported, and also cooperates with each reinforcement plate to support the space of the inner and outer panels, so that there are support points for the outer panel within a diameter range of 200 mm.
  • the overall stiffness and NVH first-order mode of the engine hood are greatly improved.
  • the support flange structure in the first weight-reducing hole 104 at least includes a first support flange structure 101 and an outer plate reinforcement plate connecting strip 1011 arranged close to the outer plate reinforcement plate 4, wherein the outer plate reinforcement plate connecting strip 1011 is arranged around the edge of the first support flange structure 101;
  • the support flange structure in the first weight-reducing hole 104 at least includes a second support flange structure 102 and a hinge reinforcement plate connecting strip 1021 arranged close to the hinge reinforcement plate 3, wherein the hinge reinforcement plate connecting strip 1021 is arranged around the edge of the second support flange structure 102;
  • the support flange structure in the first weight-reducing hole 104 at least includes a third support flange structure 103 and a lock reinforcement plate connecting strip 1031 arranged close to the lock reinforcement plate 2, wherein the lock reinforcement plate connecting strip 1031 is arranged around the edge of the third support flange structure 103;
  • the lock reinforcement plate connecting strip 1031 and the outer plate reinforcement plate connecting strip 1011 are continuous protruding structures surrounding the periphery of at least five first weight-reducing holes 104 .
  • the engine hood of the present invention can reduce the weight by about 30% to 40%, reduce the weight of the vehicle to improve fuel economy, be more energy-saving and environmentally friendly, and also improve the vehicle's power performance.
  • the aluminum material has better thermal conductivity and is more conducive to heat dissipation in the engine compartment.
  • the aluminum engine hood has better anti-corrosion performance than the steel engine hood.
  • the lock reinforcement plate 2 is connected to the upper surface of the first edge of the inner panel 1; the lock reinforcement plate 2 is installed at the corresponding position of the inner panel 1 and the engine hood locking mechanism, and on the symmetry line of the inner panel 1, the lock reinforcement plate 2 is provided with a long strip assembly hole that cooperates with the engine hood locking mechanism; preferably, the lock reinforcement plate 2 is installed near the first edge of the inner panel 1 at the front part of the vehicle, extends along the width direction of the first edge, and is symmetrically arranged about the symmetry line of the inner panel 1.
  • the outer panel reinforcement plate 4 is connected to the upper surface of the second edge of the inner panel 1; the first edge and the second edge of the inner panel 1 are arranged opposite to each other.
  • the outer panel reinforcement plate 4 preferably extends along the width direction of the second edge of the inner panel 1 and is symmetrically arranged about the symmetry line of the inner panel 1.
  • the lock reinforcement plate 2, the outer panel reinforcement plate 4 and the hinge reinforcement plate 3 all include at least a first protruding structure relative to the upper surface of the inner panel 1, and the inner panel 1 area between the lock reinforcement plate 2, the outer panel reinforcement plate 4 and the hinge reinforcement plate 3 is also provided with a second protruding structure flush with the first protruding structure.
  • the first protruding structure and the second protruding structure are used to connect with the outer panel located above the inner panel 1.
  • the structural strength of the inner panel is improved, and on the other hand, it also plays a role in spatial support and structural reinforcement of the entire engine hood.
  • the lock reinforcement plate 2 includes a lock reinforcement plate body 204 , a first support leg 202 , a second support leg 203 and a first connecting portion 205 ; the lock reinforcement plate 2 is integrally stamped and formed.
  • the lock reinforcement plate body 204 is provided with second weight-reducing holes 201 and second connecting parts 206 at intervals; the lock reinforcement plate 2 is extended to both sides as much as possible, and the second connecting part 206 of the lock reinforcement plate 2 is protruded and can be connected to the outer plate through supporting glue, which has a significant effect on improving the surface stiffness and mode.
  • a weight-reducing hole is opened between every two second connecting parts 206 to achieve the purpose of reducing weight and weakening the head impact area.
  • the first support leg 202 and the second support leg 203 adopt a concave design similar to a U-shaped structure, and a plurality of weight-reducing holes are provided on the side of the U-shaped structure, which does not affect the structural strength and can also reduce weight.
  • the first supporting foot 202 is arranged at one end of the lock reinforcement plate body 204; the second supporting foot 203 is arranged at the other end of the lock reinforcement plate body 204; the first supporting foot 202 and the second supporting foot 203 can be the same or different; when the same, the first supporting foot 202 and the second supporting foot 203 are symmetrically arranged about the symmetry line of the inner plate 1.
  • the first connection portion 205 is arranged around the outer periphery of the lock reinforcement plate body 204, the first support leg 202 and the second support leg 203, and is used to connect the lock reinforcement plate 2 to the inner plate 1.
  • the first connection portion 205 is an L-shaped sheet structure, and the first connection portion 205 and the upper surface of the inner plate 1 are both provided with connection holes.
  • a lock reinforcement plate support limit portion 106 and a first support foot positioning portion 105 are provided at the positions corresponding to the inner plate 1 and the lock reinforcement plate 2; the lock reinforcement plate support limit portion 106 is in the shape of a long strip and is protruding on the inner plate 1; the lock reinforcement plate body 204 is buckled on the lock reinforcement plate support limit portion 106.
  • the first support leg positioning portion 105 is distributed on both sides of the lock reinforcement plate support limit portion 106 and is recessed on the inner plate 1 .
  • the first support leg 202 and the second support leg 203 are fixedly connected to the first support leg positioning portion 105 .
  • the lower side surface of the lock reinforcement plate body 204 is buckled along the lock reinforcement plate support limit portion 106, and then the first support foot 202 and the second support foot 203 are respectively fitted with the two first support foot positioning portions 105, and the first support foot positioning portion 105 has an approximately U-shaped fitting surface, and the support foot and the support foot positioning portion are fitted and fixed by spot welding or riveting; on the one hand, the U-shaped fitting increases the force-bearing area, and also has a good structural support effect.
  • Part of the first connection part 205 is fixed to the lock reinforcement plate connection strip 1031, and another part of the first connection part 205 is directly fixed to the inner plate 1, and the second connection part 206 is fixed to the outer plate through the supporting glue, so that the lock reinforcement plate 2 is fixed between the inner and outer plates.
  • the hinge reinforcement plate 3 includes a hinge reinforcement plate support foot 302, an overlap portion 301 and an overlap edge 303; the hinge reinforcement plate 3 is integrally stamped; the hinge reinforcement plate support foot 302 is recessed and arranged on one side of the lock reinforcement plate 2; the overlap portion 301 is convexly arranged on the lock reinforcement plate 2 and is arranged diagonally to the hinge reinforcement plate support foot 302; the hinge reinforcement plate support foot 302 is surrounded by a raised skirt structure; the overlap edge 303 is arranged at the edge of the lock reinforcement plate 2 close to the hinge reinforcement plate support foot 302.
  • the height of the overlap portion 301 is greater than the overlap edge 303, the overlap edge 303 is higher than the upper surface of the hinge reinforcement plate 3, and the hinge reinforcement plate support foot 302 is recessed and lower than the upper surface of the hinge reinforcement plate 3.
  • the fixation of the hinge reinforcement plate 3 and the inner plate 1 adopts the following structure: a second support foot positioning portion 107 is provided at the position corresponding to the inner plate 1 and the hinge reinforcement plate 3, and the second support foot positioning portion 107 is recessed on the inner plate 1; the second support foot positioning portion 107 cooperates with the hinge reinforcement plate support foot 302 to fix the lock reinforcement plate 2.
  • the second support foot positioning portion 107 is fitted with the hinge reinforcement plate support foot 302, it is fixed by riveting or spot welding, and the overlap portion 301 is overlapped on the upper surface of the hinge reinforcement plate connecting strip 1021, the lower surface of the overlap portion 301 is fitted and fixed with the hinge reinforcement plate connecting strip 1021 of the inner panel 1, and the upper surface is fixed to the outer panel by supporting glue.
  • the hinge reinforcement plate 3 is connected to the outer panel.
  • the glue coating points improve the dent resistance of the outer panel and the stiffness of the local fixed points of the hinge.
  • the stepped design and extension of the hinge reinforcement plate 3 along the length direction have a significant effect on improving the torsional stiffness and mode.
  • the outer plate reinforcement plate 4 includes an outer plate reinforcement plate body 404 , a first connecting arm 402 , a second connecting arm 403 and a fifth connecting portion 407 ;
  • the outer reinforcing plate body 404 is provided with a plurality of third weight-reducing holes 401;
  • the first connecting arm 402 is disposed at one end of the outer reinforcing plate body 404, a third connecting portion 405 is protruding from the first connecting arm 402, and third weight-reducing holes 401 are disposed on both sides of the third connecting portion 405;
  • the second connecting arm 403 is disposed at the other end of the outer reinforcing plate body 404.
  • a fourth connecting portion 406 is protruding from the first connecting arm 402.
  • Third weight-reducing holes 401 are disposed on both sides of the fourth connecting portion 406.
  • the fifth connection part 407 is arranged around the outer periphery of the outer reinforcement plate body 404, the first connection arm 402 and the second connection arm 403, and is used to connect the outer plate reinforcement plate 4 to the inner plate 1; at least three fifth connection parts 407 are fixed to the periphery of the first connection arm 402 and the second connection arm 403 respectively.
  • the outer panel reinforcement plate 4 designs the existing three shock-absorbing brackets into a whole, so that the cavity area of the inner and outer panels at the rear of the engine hood is effectively supported.
  • This area is designed as an integrated structure, which effectively reduces the negative pressure deformation of the rear edge of the engine hood caused by the airflow when the car is driving at high speed, and also reduces the deformation of the inner and outer panels of the engine hood caused by the instantaneous water pressure when the engine hood enters the electric pool.
  • part of the fifth connection part 407 is connected to the outer panel reinforcement plate connection strip 1011, and the other part of the fifth connection part 407 is directly fixed to the inner panel 1; the upper surfaces of the third connection part 405 and the fourth connection part 406 are fixed to the outer panel by supporting glue.
  • an engine hood includes an outer panel 5 and the above-mentioned engine hood inner panel assembly; in the process production, the reinforcing plate is spot welded to the inner panel to form the inner panel assembly, and then the outer panel 5 is coated with supporting glue and edge-wrapped and pressed.
  • the lock reinforcement plate 2, the hinge reinforcement plate 3 and the outer panel reinforcement plate 4 are connected between the outer panel 5 and the inner panel 1.
  • the overlap 303 is set at the edge of the lock reinforcement plate 2 close to the hinge reinforcement plate support foot 302, and the outer panel 5 is provided with an overlap flange 501 cooperating with the overlap 303 near the lock reinforcement plate 2.
  • the overlap flange 501 is buckled and overlapped with the overlap 303.
  • the pivot structure 605 includes a waist-shaped hole as shown in the figure, the engine hood fixing plate 603 is an L-shaped structure, one bending surface of the engine hood fixing plate 603 is connected to the engine hood, and the other bending surface is provided with the waist-shaped hole; the rotating shaft at the end of the steering connecting arm 602 is rotatably matched with the waist-shaped hole and moves along the waist-shaped hole.
  • the follower connecting plate 604 also deflects together.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

本发明公开了一种发动机罩内板总成、发动机罩及汽车，所述发动机罩内板总成包括内板，及锁加强板、外板加强板和铰链加强板；锁加强板连接在所述内板的第一边缘上表面；外板加强板连接在所述内板的第二边缘上表面；铰链加强板连接在所述外板加强板两侧的所述内板的上表面；所述内板的第一边缘与第二边缘相对设置。所述内板包括多个第一减重孔；所述第一减重孔开设在锁加强板、外板加强板和铰链加强板之间的内板区域；本发明实现了汽车轻量化设计，通过在内外板间设置加强板，使得内外板空间及连接结构强度得到提升，满足发动机罩自身性能要求，并显著降低了重量，采用铝制材料时，同时达到最优的减重效果。

Description

一种发动机罩内板总成、发动机罩及汽车 技术领域
本发明涉及汽车制造领域，尤其一种发动机罩内板总成、发动机罩及汽车。
背景技术
目前的发动机罩结构采用钢制一体成型结构。一般包括钢制的外板和内板，因钢制发动机罩结构强度高，一般外板和内板之间不填充特殊的支撑结构。
为了减轻重量，在靠近发动机的内板上设置减重孔，如CN 204750310 U公开的发动机罩的内板以及具有其的发动机罩。
然而，钢制发动机罩重量仍然较重，耐腐蚀性差，不利于提升车辆性能的进一步提升。
发明内容
本发明的目的在于提供一种发动机罩内板总成、发动机罩及汽车，在满足发动机罩结构强度的基础上，显著减轻了发动机罩重量。
本发明提供了下述方案：
第一方面，本发明记载一种发动机罩内板总成，包括内板，还包括锁加强板、外板加强板和铰链加强板；锁加强板连接在所述内板的第一边缘上表面；外板加强板连接在所述内板的第二边缘上表面；铰链加强板连接在所述外板加强板两侧的所述内板的上表面；所述内板的第一边缘与第二边缘相对设置。
所述锁加强板包括
锁加强板本体，锁加强板本体上间隔设置有第二减重孔和第二连接部；
第一支撑脚，设置在锁加强板本体的一端；
第二支撑脚，设置在锁加强板本体的另一端；
第一连接部，环绕设置在所述锁加强板本体、第一支撑脚和第二支撑脚外周，用于将锁加强板连接在所述内板上。
所述铰链加强板包括
铰链加强板支撑脚，凹陷设置在锁加强板的一侧；
搭接部，凸设在锁加强板上，并与所述铰链加强板支撑脚对角设置；
搭边，设置在紧贴铰链加强板支撑脚的锁加强板边缘。
所述外板加强板包括
外加强板本体，设有多个第三减重孔；
第一连接臂，设置在外加强板本体的一端，第一连接臂上凸设有第三连接部，第三连接部的两侧设有第三减重孔；
第二连接臂，设置在外加强板本体的另一端，第一连接臂上凸设有第四连接部，第四连接部的两侧设有第三减重孔；
第五连接部，环绕设置在所述外加强板本体、第一连接臂和第二连接臂外周，用于将外板加强板连接在所述内板上。
所述内板包括多个第一减重孔；
所述第一减重孔开设在锁加强板、外板加强板和铰链加强板之间的内板区域；
环绕第一减重孔外周的内板上设有支撑凸缘结构，所述支撑凸缘结构紧靠所述锁加强板、外板加强板和铰链加强板的一侧设有连接条，所述连接条与所述第一连接部、搭接部和第五连接部配合，用于固定所述锁加强板、铰链加强板和外板加强板。
所述内板与所述锁加强板对应的位置设有
锁加强板支撑限位部，呈长条形，凸设在所述内板上；所述锁加强板本体扣合在所述锁加强板支撑限位部上；
第一支撑脚定位部，分布于所述锁加强板支撑限位部两侧，凹陷设置在所述内板上，所述第一支撑脚和第二支撑脚与所述第一支撑脚定位部固定连接。
所述内板与所述铰链加强板对应的位置设有第二支撑脚定位部，第二支撑脚定位部凹陷设置于内板上；
所述第二支撑脚定位部与所述铰链加强板支撑脚配合，用于固定锁加强板。
第二方面，本发明记载一种发动机罩，包括外板，其特征在于，包括上述结构的发动机罩内板总成；
所述锁加强板、铰链加强板和外板加强板连接在所述外板和所述内板之间。
还包括铰链连接臂组件，用于将发动机罩连接在车身上；
所述铰链连接臂组件包括
车身连接臂；
发动机罩固定板；
转向连接臂，一端与所述车身连接臂转动连接，另一端连接发动机罩固定板；
发动机罩固定板与转向连接臂通过枢转结构相连，发动机罩固定板与转向连接臂之间还连接有随动连接板。
第三方面，本发明记载一种汽车，包括上述结构的发动机罩。
本发明与现有技术相比具有以下的优点：本发明实现了汽车轻量化设计，通过在内外板间设置加强板，使得内外板空间及连接结构强度得到提升，满足发动机罩自身性能要求，并显著降低了重量，采用铝制材料时，同时达到最优的减重效果。
附图说明
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明发动机罩内板总成一个实施例的结构示意图。
图2为本发明内板一个实施例的结构示意图。
图3为本发明锁加强板一个实施例的结构示意图。
图4为本发明铰链加强板一个实施例的结构示意图。
图5为本发明外板加强板一个实施例的结构示意图。
图6为本发明发动机罩一个实施例的结构仰视图。
图7为图6中A处的结构放大图。
图8为图7所示实施例的结构俯视图。
图9为本发明外板与锁加强板、铰链加强板和外板加强板的连接结构示意图。
图10为图9中B处的结构放大图。
图11为本发明铰链连接臂组件的结构示意图。
图12为图11所示实施例结构侧视图。
在图中，
1、内板2、锁加强板3、铰链加强板4、外板加强板5、外板(5)6、铰链
连接臂组件
101、第一支撑凸缘结构1011、外板加强板连接条
102、第二支撑凸缘结构1021、铰链加强板连接条
103、第三支撑凸缘结构1031、锁加强板连接条
104、第一减重孔
105、第一支撑脚定位部
106、锁加强板支撑限位部
107、第二支撑脚定位部
201、第二减重孔
202、第一支撑脚
203、第二支撑脚
204、锁加强板本体
205、第一连接部
206、第二连接部
301、搭接部
302、铰链加强板支撑脚
303、搭边
401、第三减重孔
402、第一连接臂
403、第二连接臂
404、外加强板本体
405、第三连接部
406、第四连接部
407、第五连接部
501、搭边凸缘
601、车身连接臂
602、转向连接臂
603、发动机罩固定板
604、随动连接板
605、枢转结构。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、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，术语“第一”、“第二”、仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
本发明公开了一种发动机罩内板总成，及对应的包含内板总成和外板的发动机罩，发动机罩上连接有用于固定发动机罩的铰链连接臂组件；
内板总成与外板之间固定有用于支撑发动机罩结构的锁加强板2、外板加强板4和铰链加强板3，不仅起到对发动机罩空间加强支撑作用，还对加强了对铰链、发动机罩锁闭结构等配套组件的连接强度进行了加强。
所述发动机罩采用铝合金材质。其中，所述外板由0.7mm钢板材转化为0.95mm铝板材，内板由0.55mm钢板材转化为0.8mm铝板材，锁加强板2为1.2mm铝板材，外板加强板4为1.2mm铝板材，铰链加强板3为1.5mm铝板材；在显著降低发动机罩重量的同时，经过CAE的模拟计算及实际检测，其刚度仍能满足发动机罩的总成性能。
为了进一步减轻重量，增加结构强度，所述内板1设有多个第一减重孔104；所述第一减重孔104开设在锁加强板2、外板加强板4和铰链加强板3之间的内板1区域；
环绕第一减重孔104外周的内板1上设有支撑凸缘结构，所述支撑凸缘结构紧靠所述锁加强板2、外板加强板4和铰链加强板3的一侧设有连接条，所述连接条与所述第一连接部205、搭接部301和第五连接部407配合，用于固定所述锁加强板2、铰链加强板3和外板加强板4。
如图2所示的一个实施例中，所述第一减重孔104有7个，每个第一减重孔104顶部采用整圈涂胶，并均匀的分布在第一减重孔104开口区域。通过凸起的第一减重孔104的支撑胶连接内外板结构，不仅涂胶槽点涂的更加均匀，可以使内外板空腔得到很好的支撑，还配合各个加强板对内外板的空间起到支撑作用，达到了直径200mm范围内均有对外板的支撑点。大大提升发动机罩的整体刚度及NVH一阶模态。
第一减重孔104中的支撑凸缘结构至少包括第一支撑凸缘结构101及紧贴外板加强板4设置的外板加强板连接条1011，其中外板加强板连接条1011环绕设置在第一支撑凸缘结构101边缘；
第一减重孔104中的支撑凸缘结构至少包括第二支撑凸缘结构102及紧贴铰链加强板3设置的铰链加强板连接条1021，其中铰链加强板连接条1021环绕设置在第二支撑凸缘结构102边缘；
第一减重孔104中的支撑凸缘结构至少包括第三支撑凸缘结构103及紧贴锁加强板2设置的锁加强板连接条1031，其中锁加强板连接条1031环绕设置在第三支撑凸缘结构103边缘；
其中，所述锁加强板连接条1031与外板加强板连接条1011为连续凸起结构，环绕在至少5个第一减重孔104外周。
本发明发动机罩相比于传统钢材质发动机罩可降重30％～40％左右，降低车重以提高燃油经济性，更加节能环保，也提高了车辆动力性能，铝材质相比传统钢材质具有更好的导热性，更有利于发动机舱内的散热。同时铝材质发动机罩相比钢材质发动机罩具有更好的防腐性能。
实施例一
如图1所示，本实施例记载一种发动机罩内板总成，发动机罩内板总成包括内板1，它还包括锁加强板2、外板加强板4和铰链加强板3。在本实施例中，所述内板1采用一体冲压成型，所述锁加强板2、外板加强板4和铰链加强板3作为独立的零部件，通过点焊等方式安 装固定在内板1的相应位置。同时锁加强板2、外板加强板4和铰链加强板3上根据固定总装零件的不同拉铆一定数量的拉铆螺母、拉铆螺栓等标准件，满足固定点的局部刚度。
具体的，锁加强板2连接在所述内板1的第一边缘上表面；锁加强板2安装在内板1与发动机罩锁闭机构的对应位置，在内板1的对称线上，所述锁加强板2上设有与所述发动机罩锁闭机构配合的长条形装配孔；优选的是，所述锁加强板2靠近车头部位的内板1第一边缘安装，沿着第一边缘的宽度方向延伸，并采用关于内板1的对称线对称设置。
外板加强板4连接在所述内板1的第二边缘上表面；所述内板1的第一边缘与第二边缘相对设置。外板加强板4优选沿着内板1的第二边缘宽度方向延伸，并采用关于内板1的对称线对称设置。
铰链加强板3连接在所述外板加强板4两侧的所述内板1的上表面；铰链加强板3设置在内板1靠近车身的两个边角处，其上设有与铰链连接的螺纹连接件。
所述锁加强板2、外板加强板4和铰链加强板3均至少包含相对于内板1上表面的第一凸出结构，及锁加强板2、外板加强板4和铰链加强板3之间的内板1区域也设有与所述第一凸出结构平齐的第二凸出结构，所述第一凸出结构与第二凸出结构用于与位于内板1上方的外板连接，一方面提升内板的结构强度，另一方面也对整个发动机罩起到空间支撑与结构加强作用。
实施例二
如图2和图3所示，所述锁加强板2包括锁加强板本体204、第一支撑脚202、第二支撑脚203和第一连接部205；锁加强板2为一体冲压成型，
锁加强板本体204上间隔设置有第二减重孔201和第二连接部206；锁加强板2尽量向两侧延展，锁加强板2的第二连接部206凸出设置，可通过支撑胶与外板连接，这对于表面刚度及模态的提升有明显作用。每2个第二连接部206中间开减重孔，达到降重及弱化头碰区域的目的。
相对于锁加强板本体204，第一支撑脚202和第二支撑脚203采用近似u字形结构的凹陷设计，且在u字形结构结构的侧面设有多个减重孔，不影响结构强度，也能减重。
第一支撑脚202设置在锁加强板本体204的一端；第二支撑脚203设置在锁加强板本体204的另一端；第一支撑脚202和第二支撑脚203可以相同，可以不同；当相同时，第一支撑脚202和第二支撑脚203关于内板1的对称线对称设置。
在安装时，第一连接部205环绕设置在所述锁加强板本体204、第一支撑脚202和第二支撑脚203外周，用于将锁加强板2连接在所述内板1上。第一连接部205采用为L字形的片状结构，第一连接部205与内板1上表面的贴合出均开设有连接孔。
为了方便锁加强板2与所述内板1的装配，提升结构性能，所述内板1与所述锁加强板2对应的位置设有锁加强板支撑限位部106和第一支撑脚定位部105；锁加强板支撑限位部106呈长条形，凸设在所述内板1上；所述锁加强板本体204扣合在所述锁加强板支撑限位部106上。
第一支撑脚定位部105分布于所述锁加强板支撑限位部106两侧，凹陷设置在所述内板1上，所述第一支撑脚202和第二支撑脚203与所述第一支撑脚定位部105固定连接。
装配时，所述锁加强板本体204下侧面沿着锁加强板支撑限位部106扣合，而后第一支撑脚202和第二支撑脚203分别与两个第一支撑脚定位部105贴合，且第一支撑脚定位部105具有近似u字形的贴合面，在通过点焊或铆接等将支撑脚与支撑脚定位部贴合固定；一方面U字形的贴合，增加了受力面积，同时也具有很好的结构支撑作用。
部分第一连接部205与锁加强板连接条1031固定，另一部分第一连接部205则直接与内板1固定，第二连接部206通过支撑胶与外板固定，从而将锁加强板2固定在内外板之间。
实施例三
如图4所示，所述铰链加强板3包括铰链加强板支撑脚302、搭接部301和搭边303；铰链加强板3为一体冲压成型；铰链加强板支撑脚302凹陷设置在锁加强板2的一侧；搭接部301凸设在锁加强板2上，并与所述铰链加强板支撑脚302对角设置；铰链加强板支撑脚302环绕有凸起的裙边结构；搭边303设置在紧贴铰链加强板支撑脚302的锁加强板2边缘。其中，所述搭接部301的高度大于搭边303，搭边303高于铰链加强板3上表面，铰链加强板支撑脚302凹陷低于铰链加强板3上表面。
铰链加强板3与内板1的固定采用如下结构，所述内板1与所述铰链加强板3对应的位置设有第二支撑脚定位部107，第二支撑脚定位部107凹陷设置于内板1上；所述第二支撑脚定位部107与所述铰链加强板支撑脚302配合，用于固定锁加强板2。
第二支撑脚定位部107与所述铰链加强板支撑脚302贴合后，通过铆接或点焊固定，而搭接部301则搭接在铰链加强板连接条1021上表面，搭接部301的下表面与内板1的铰链加强板连接条1021贴合固定，上表面通过支撑胶与外板固定。铰链加强板3增加了与外板连接的 涂胶点，对于外板的抗凹性及铰链的局部固定点刚度均有提升，同时铰链加强板3沿长度方向的阶梯设计与延伸，对于扭转刚度及模态的提升有明显作用。
实施例四
如图5所示，所述外板加强板4包括外加强板本体404、第一连接臂402、第二连接臂403和第五连接部407；
外加强板本体404设有多个第三减重孔401；
第一连接臂402设置在外加强板本体404的一端，第一连接臂402上凸设有第三连接部405，第三连接部405的两侧设有第三减重孔401；
第二连接臂403设置在外加强板本体404的另一端，第一连接臂402上凸设有第四连接部406，第四连接部406的两侧设有第三减重孔401；
第五连接部407环绕设置在所述外加强板本体404、第一连接臂402和第二连接臂403外周，用于将外板加强板4连接在所述内板1上；第一连接臂402和第二连接臂403外周至少分别固定有三个第五连接部407。
外板加强板4将现有三个减震支架设计成整体，使发动机罩后部内外板空腔区域得到有效支撑，此区域设计成一体结构，有效的减小了汽车高速行驶时气流对发动机罩后沿产生的负压变形，同时也减小了发动机罩进入电泳池的瞬间水压对发动机罩内外板产生的变形。
安装时，部分第五连接部407与外板加强板连接条1011连接，另一部分第五连接部407直接与内板1固定；第三连接部405与第四连接部406的上表面通过支撑胶与外板固定。
实施例五
如图6-9所示，一种发动机罩，包括外板5，包括上述发动机罩内板总成；在工艺生产中，加强板分别与内板点焊焊接后形成内板总成，然后与外板5进行涂布支撑胶及包边压合。所述锁加强板2、铰链加强板3和外板加强板4连接在所述外板5和所述内板1之间。搭边303设置在紧贴铰链加强板支撑脚302的锁加强板2边缘，所述外板5靠近锁加强板2设有与所述搭边303配合的搭边凸缘501，当所述锁加强板2固定在所述内板1上时，所述搭边凸缘501与所述搭边303扣合搭接。
为了便于发动机罩与车体的连接，发动机罩还包括铰链连接臂组件6，如图10-12所示，所述铰链连接臂组件6包括车身连接臂601、发动机罩固定板603和转向连接臂602，转向连 接臂602一端与所述车身连接臂601转动连接，另一端连接发动机罩固定板603；发动机罩固定板603与转向连接臂602通过枢转结构605相连，发动机罩固定板603与转向连接臂602之间还连接有随动连接板604。
枢转结构605包括图示的腰形孔，发动机罩固定板603为L字形结构，发动机罩固定板603一个弯折面与发动机罩连接，另一个弯折面设置上述腰形孔；位于转向连接臂602端部的转轴与所述腰形孔转动配合，并沿着所述腰形孔移动。在转向连接臂602沿着转轴旋转时，所述随动连接板604也一起发生偏转。
尽管结合优选实施方案具体展示和介绍了本发明，但所属领域的技术人员应该明白，在不脱离所附权利要求书所限定的本发明的精神和范围内，在形式上和细节上可以对本发明做出各种变化，均为本发明的保护范围。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

  1. 一种发动机罩内板总成，包括内板(1)，其特征在于，还包括
    锁加强板(2)，连接在所述内板(1)的第一边缘上表面；
    外板加强板(4)，连接在所述内板(1)的第二边缘上表面；
    铰链加强板(3)，连接在所述外板加强板(4)两侧的所述内板(1)的上表面；
    所述内板(1)的第一边缘与第二边缘相对设置。
  2. 如权利要求1所述的发动机罩内板总成，其特征在于，所述锁加强板(2)包括
    锁加强板本体(204)，锁加强板本体(204)上间隔设置有第二减重孔(201)和第二连接部(206)；
    第一支撑脚(202)，设置在锁加强板本体(204)的一端；
    第二支撑脚(203)，设置在锁加强板本体(204)的另一端；
    第一连接部(205)，环绕设置在所述锁加强板本体(204)、第一支撑脚(202)和第二支撑脚(203)外周，用于将锁加强板(2)连接在所述内板(1)上。
  3. 如权利要求2所述的发动机罩内板总成，其特征在于，所述铰链加强板(3)包括铰链加强板支撑脚(302)，凹陷设置在锁加强板(2)的一侧；
    搭接部(301)，凸设在锁加强板(2)上，并与所述铰链加强板支撑脚(302)对角设置；
    搭边(303)，设置在紧贴铰链加强板支撑脚(302)的锁加强板(2)边缘。
  4. 如权利要求3所述的发动机罩内板总成，其特征在于，所述外板加强板(4)包括
    外加强板本体(404)，设有多个第三减重孔(401)；
    第一连接臂(402)，设置在外加强板本体(404)的一端，第一连接臂(402)上凸设有第三连接部(405)，第三连接部(405)的两侧设有第三减重孔(401)；
    第二连接臂(403)，设置在外加强板本体(404)的另一端，第一连接臂(402)上凸设有第四连接部(406)，第四连接部(406)的两侧设有第三减重孔(401)；
    第五连接部(407)，环绕设置在所述外加强板本体(404)、第一连接臂(402)和第二连接臂(403)外周，用于将外板加强板(4)连接在所述内板(1)上。
  5. 如权利要求4所述的发动机罩内板总成，其特征在于，所述内板(1)包括多个第一减重孔(104)；
    所述第一减重孔(104)开设在锁加强板(2)、外板加强板(4)和铰链加强板(3)之间的内板(1)区域；
    环绕第一减重孔(104)外周的内板(1)上设有支撑凸缘结构，所述支撑凸缘结构紧靠所述锁加强板(2)、外板加强板(4)和铰链加强板(3)的一侧设有连接条，所述连接条与所述第一连接部(205)、搭接部(301)和第五连接部(407)配合，用于固定所述锁加强板(2)、铰链加强板(3)和外板加强板(4)。
  6. 如权利要求5所述的发动机罩内板总成，其特征在于，所述内板(1)与所述锁加强板(2)对应的位置设有
    锁加强板支撑限位部(106)，呈长条形，凸设在所述内板(1)上；所述锁加强板本体(204)扣合在所述锁加强板支撑限位部(106)上；
    第一支撑脚定位部(105)，分布于所述锁加强板支撑限位部(106)两侧，凹陷设置在所述内板(1)上，所述第一支撑脚(202)和第二支撑脚(203)与所述第一支撑脚定位部(105)固定连接。
  7. 如权利要求6所述的发动机罩内板总成，其特征在于，所述内板(1)与所述铰链加强板(3)对应的位置设有第二支撑脚定位部(107)，第二支撑脚定位部(107)凹陷设置于内板(1)上；
    所述第二支撑脚定位部(107)与所述铰链加强板支撑脚(302)配合，用于固定锁加强板(2)。
  8. 一种发动机罩，包括外板(5)，其特征在于，包括权利要求1-7中任意一项所述的发动机罩内板总成；
    所述锁加强板(2)、铰链加强板(3)和外板加强板(4)连接在所述外板(5)和所述内板(1)之间。
  9. 如权利要求8所述的发动机罩，其特征在于，还包括铰链连接臂组件(6)，用于将发动机罩连接在车身上；
    所述铰链连接臂组件(6)包括
    车身连接臂(601)；
    发动机罩固定板(603)；
    转向连接臂(602)，一端与所述车身连接臂(601)转动连接，另一端连接发动机罩固定板(603)；
    发动机罩固定板(603)与转向连接臂(602)通过枢转结构(605)相连，发动机罩固定板(603)与转向连接臂(602)之间还连接有随动连接板(604)。
  10. 一种汽车，其特征在于，包括权利要求8或9所述的发动机罩。
PCT/CN2024/105847 2023-09-11 2024-07-17 一种发动机罩内板总成、发动机罩及汽车 Pending WO2025055543A1 (zh)

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