Headlamp cross beam and vehicle

Abstract

A headlamp cross beam and a vehicle belong to the field of vehicle body structures. The headlamp cross beam comprises a metal plate cross beam and a plastic positioning block, the plastic positioning block is used for positioning and fixing a headlamp assembly, and the metal plate cross beam and the plastic positioning block are connected through a first connecting piece in the Z direction or the plastic positioning block wraps the metal plate cross beam in the Z direction. Compared with an existing headlamp cross beam of a pure metal plate structure, the headlamp cross beam has the advantages that the Z-direction rigidity is reduced, the effect of reducing the head injury value can be achieved through Z-direction deformation and head type impact energy absorption during a head type test, and therefore the requirement for the head injury index HIC in the head type test is met.

Description

Technical Field

[0001] The present application relates to the field of vehicle body structures, and in particular to a headlight beam and a vehicle. Background Art

[0002] GB24550-2024 "Motor Vehicle Against Pedestrians" puts forward higher requirements for automobile passive safety, which significantly increases the difficulty of automobile development. In the development and design of the upper structure of the automobile hood, the pedestrian protection test area at the headlight position is a high-risk area that may cause high head injuries in the head shape test. The main reasons are: Figure 1 As shown, the Z-direction distance d from the upper end surface of the headlight assembly 1 to the outer styling surface of the engine hood 2 is small, resulting in a relatively small head-shaped crumple space. At the same time, the structural rigidity of the headlight assembly 1 is large, which is not conducive to providing sufficient head-shaped crumple space during a collision.

[0003] Therefore, to meet the HIC requirements of headform testing, the headlight structure needs to be optimized. Existing optimization approaches typically increase the Z-direction clearance between the upper end surface of the headlight assembly 1 and the exterior contour of the hood 2. However, this requires a complete redesign of the headlight structure, which carries the disadvantages of high development costs and a long development cycle. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a headlight beam and a vehicle to solve at least one of the above technical problems.

[0005] In a first aspect, the present application provides a headlight beam, comprising a sheet metal beam and a plastic positioning block, the plastic positioning block being used for positioning and fixing the headlight assembly, the sheet metal beam and the plastic positioning block being connected in the Z direction by a first connecting member or the plastic positioning block being covered on the sheet metal beam in the Z direction.

[0006] In combination with the first aspect, in some optional embodiments, the plastic positioning block is provided on the top surface or the bottom surface of the sheet metal beam.

[0007] In combination with the first aspect, in some optional embodiments, a plurality of first connection holes are provided on the sheet metal beam, and a corresponding plurality of second connection holes are provided on the positioning portion, and the plurality of first connection holes are respectively connected to the plurality of second connection holes through a first connecting member.

[0008] In combination with the first aspect, in some optional embodiments, one of the sheet metal beam and the plastic positioning block is provided with a plurality of positioning holes, and the other is provided with a plurality of positioning protrusions, and the plurality of positioning holes are respectively connected to the plurality of positioning protrusions.

[0009] In combination with the first aspect, in some optional embodiments, the multiple positioning holes include at least one first positioning hole and at least one second positioning hole, the first positioning hole is a circular through hole, and the second positioning hole is a waist-shaped hole. The multiple positioning protrusions include at least one first positioning protrusion and at least one second positioning protrusion, the first positioning protrusion is a cross-shaped structure and is connected to the first positioning hole, and the second positioning protrusion is a straight-line structure and is connected to the second positioning hole.

[0010] In combination with the first aspect, in some optional embodiments, a plurality of second connecting members are provided on the plastic positioning block, and the second connecting members are used to cooperate with the fasteners to connect to the headlight assembly.

[0011] In combination with the first aspect, in some optional embodiments, a third positioning protrusion is provided on the plastic positioning block, and the third positioning protrusion is used to connect with the positioning hole on the headlight assembly.

[0012] In combination with the first aspect, in some optional embodiments, a plurality of third connection holes are provided at one end of the sheet metal beam, and the third connection holes are used to connect to the front end frame, and a plurality of fourth connection holes are provided at the other end of the sheet metal beam, and the fourth connection holes are used to connect to the upper longitudinal beam.

[0013] In combination with the first aspect, in some optional embodiments, it further includes: a bumper bracket installed on the sheet metal crossbeam to support the front bumper.

[0014] In a second aspect, the present application provides a vehicle comprising a headlight beam according to any one of the embodiments of the first aspect.

[0015] Based on the above technical solution, the headlight beam and vehicle provided in this application are constructed from a sheet metal beam and a plastic positioning block connected in the Z direction by a first connector, or with the plastic positioning block wrapped around the sheet metal beam in the Z direction. Compared to existing headlight beams constructed entirely of sheet metal, this reduces Z-direction stiffness. During headform testing, the headlight beam provided in this application can deform in the Z direction to absorb the impact energy of the head, thereby reducing the head injury value and thus meeting the head injury index (HIC) requirements in headform testing. Furthermore, compared to solutions requiring a completely redesigned headlight, the headlight beam and vehicle provided in this application can reduce development costs and shorten the development cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1The present invention is a partial cross-sectional schematic diagram of the upper part of an existing automobile engine hood.

[0018] Figure 2 A schematic structural diagram of a headlight beam provided in an embodiment of the present application.

[0019] Figure 3 This is an exploded schematic diagram of a headlight beam provided in an embodiment of the present application.

[0020] Figure 4 This is a schematic structural diagram of a sheet metal beam from a bottom perspective provided in an embodiment of the present application.

[0021] Figure 5 This is a schematic structural diagram from the bottom perspective of a plastic positioning block provided in an embodiment of the present application.

[0022] Figure 6 This is a schematic diagram of the partial structure of a headlight beam provided in an embodiment of the present application within the upper part of the vehicle's engine hood.

[0023] Figure numerals: 1. headlight assembly; 101. positioning hole; 2. engine hood; 3. front end frame; 100. headlight cross beam; 10. sheet metal cross beam; 11. first connecting hole; 12. first positioning hole; 13. second positioning hole; 14. boss; 15. third connecting hole; 16. fourth connecting hole; 17. avoidance hole; 20. plastic positioning block; 21. second connecting hole; 22. first positioning protrusion; 23. second positioning protrusion; 24. connector mounting hole; 25. third positioning protrusion; 30. first connector; 40. second connector; 50. bumper bracket. DETAILED DESCRIPTION

[0024] Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only a portion of the embodiments of the present application, and not all of the embodiments. All other embodiments derived by persons of ordinary skill in the art based on the description of this application without inventive effort are intended to fall within the scope of protection of this application.

[0025] In the description of this application, unless otherwise specified or limited, the terms "connect," "dispose," and "install" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral 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; it can mean that two components are internally connected. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] The terms "upper", "lower", "left", "right", "front", "back", "center", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when used. They are only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present application.

[0027] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order, unless expressly specified and limited otherwise.

[0028] The terms "comprises," "includes," "has," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of more limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] The term "plurality" means two or more (including two).

[0030] The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0031] The terms "one embodiment," "as an example," "in one implementation," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example may be included in at least one embodiment or example of the present application. The schematic representations of such terms do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. The embodiments and features within the embodiments of the present application may be combined in appropriate ways unless there is a conflict.

[0032] Figure 2 This is a structural diagram of a headlight beam 100 provided in an embodiment of the present application. Figure 3 This is an exploded schematic diagram of a headlight beam 100 provided in an embodiment of the present application, as shown in FIG. Figure 2 and Figure 3As shown, an embodiment of the present application provides a headlight cross beam 100 for installing a headlight assembly. The headlight cross beam 100 includes a sheet metal cross beam 10 , a plastic positioning block 20 , a plurality of first connecting members 30 , and a plurality of second connecting members 40 .

[0033] The sheet metal crossbeam 10 plays the main load-bearing role. The cross section of the sheet metal crossbeam 10 perpendicular to its length is an inverted U-shape to ensure the Z-direction stiffness. The plastic positioning block 20 is arranged on the top surface of the sheet metal crossbeam 10 and is connected to the sheet metal crossbeam 10 through a plurality of first connecting members 30. The plastic positioning block 20 is used to position and fix the headlight assembly. Specifically, a plurality of second connecting members 40 are embedded in the plastic positioning block 20, and the plurality of second connecting members 40 are used to cooperate with the fasteners to connect with the headlight assembly. The plastic positioning block 20 can play a certain load-bearing role, and more importantly, the plastic positioning block 20 can reduce the Z-direction stiffness of the headlight crossbeam 100, thereby achieving the effect of reducing the head injury value. Among them, "Z-direction" refers to the Z direction in the coordinate system of the entire vehicle, that is, the height direction of the vehicle. The various parts of the headlight crossbeam 100 are described in detail below.

[0034] See also Figures 3 to 5 The main body of the sheet metal beam 10 is provided with a plurality of first connection holes 11, a plurality of first positioning holes 12, and a plurality of second positioning holes 13. The plastic positioning block 20 is provided with a corresponding plurality of second connection holes 21, a plurality of first positioning protrusions 22, and a plurality of second positioning protrusions 23.

[0035] The plurality of first connection holes 11 on the sheet metal beam 10 are connected to the plurality of second connection holes 21 on the plastic positioning block 20 through the first connection members 30. As an example, Figure 4 This is a schematic diagram of the structure of a sheet metal beam 10 from the bottom perspective provided in an embodiment of the present application, as shown in FIG. Figure 3 and 4 As shown, the first connecting hole 11 is a threaded hole and there are two of them. A boss 14 is provided at the bottom surface of the sheet metal beam 10 corresponding to each first connecting hole 11. The boss 14 is used to increase the thickness of the sheet metal beam 10 at that position to facilitate the processing of the threaded hole. The first connecting member 30 is a bolt. The second connecting hole 21 is a countersunk hole and there are two of them. The design of the countersunk hole allows the head of the bolt to sink into it, ensuring the beautiful appearance of the plastic positioning block 20 and reducing local stress concentration.

[0036] The plurality of first positioning holes 12 on the sheet metal beam 10 are connected to the plurality of first positioning protrusions 22 on the plastic positioning block 20. As an example, Figure 3 and Figure 4 As shown, the first positioning holes 12 are circular through holes and there are two of them. The two first positioning holes 12 are respectively located at the outer sides of the two ends of the main body of the sheet metal beam 10; Figure 5This is a structural diagram of a plastic positioning block 20 provided in an embodiment of the present application from a bottom perspective, as shown in FIG. Figure 5 As shown, the first positioning protrusion 22 is a cross-shaped structure and there are two of them. The two first positioning protrusions 22 are respectively located at the outer sides of the two ends of the bottom surface of the plastic positioning block 20. The first positioning protrusion 22 of the cross-shaped structure can be exactly engaged with the circular first positioning hole 12 to achieve the effect of positioning each other.

[0037] The plurality of second positioning holes 13 on the sheet metal beam 10 are connected to the plurality of second positioning protrusions 23 on the plastic positioning block 20. As an example, Figure 3 and Figure 4 As shown, the second positioning holes 13 are waist-shaped holes and there are two of them. The two second positioning holes 13 are respectively located at the inner sides of both ends of the main body of the sheet metal beam 10; Figure 5 As shown, the second positioning protrusions 23 are of a straight-line structure and are two in number. The two second positioning protrusions 23 are respectively located at the inner sides of the two ends of the bottom surface of the plastic positioning block 20. The second positioning protrusions 23 of the straight-line structure can be exactly engaged with the waist-shaped second positioning holes 13 to achieve the effect of positioning each other.

[0038] like Figure 3 and Figure 5 As shown, the plastic positioning block 20 is provided with a plurality of connector mounting holes 24, each of which is embedded with a second connector 40. At least two of the plurality of second connectors 40 are used to cooperate with the fasteners and the headlight assembly 1 (see Figure 6 ) connection, at least one for cooperating with a fastener to connect to the front bumper.

[0039] As an example, the connector mounting hole 24 is a countersunk hole, the small hole at the bottom of which is hexagonal, and the number of the connector mounting holes 24 is three, and the three connector mounting holes 24 are distributed at both ends and the middle of the plastic positioning block 20; the second connector 40 is a hexagonal flange nut and the number is three, and the three second connectors 40 are respectively embedded in the three connector mounting holes 24, and the two second connectors 40 located at both ends of the plastic positioning block 20 are used to cooperate with the bolts and the headlight assembly 1 (see Figure 6 ) connection, a second connecting member 40 located in the middle of the plastic positioning block 20 is used to cooperate with the bolt connection with the front bumper; Figure 3 and Figure 4 As shown, two avoidance holes 17 are further provided on the main body of the sheet metal beam 10 , and the two avoidance holes 17 are respectively used to avoid the two second connecting members 40 located at both ends of the plastic positioning block 20 .

[0040] The plastic positioning block 20 is further provided with a plurality of third positioning protrusions 25, at least one of which is used to engage with the positioning hole 101 (see FIG. Figure 6) connection, at least one of which is used to connect to a positioning hole on the front bumper.

[0041] As an example, the third positioning protrusions 25 are cross-shaped and there are three of them. The three third positioning protrusions 25 are distributed at both ends and the middle of the top surface of the plastic positioning block 20. The two third positioning protrusions 25 at both ends of the top surface of the plastic positioning block 20 are used to align with the circular positioning holes 101 (see FIG. Figure 6 ) is engaged, and a third positioning protrusion 25 located in the middle of the top surface of the plastic positioning block 20 is used to engage with the circular positioning hole on the front bumper.

[0042] In addition, if Figure 3 and Figure 4 As shown, one end of the sheet metal cross beam 10 is provided with a plurality of third connection holes 15, which are used to connect with the front end frame 3 of the vehicle body through fasteners (see Figure 6 ) connection, the other end of the sheet metal cross beam 10 is provided with a plurality of fourth connection holes 16, which are used to connect to the upper longitudinal beam of the vehicle body via fasteners. As an example, the third connection hole 15 and the fourth connection hole 16 are both circular through holes and there are two of each.

[0043] like Figure 2 and Figure 3 As shown, the headlight cross beam 100 further includes a bumper bracket 50 , which is welded and fixed to a top surface of the sheet metal cross beam 10 near one end. The bumper bracket 50 is used to support the front bumper.

[0044] The embodiment of the present application further provides a vehicle. A headlight crossbeam 100 is installed in the upper part of the vehicle's engine hood, and the specific structure is as follows: Figure 6 This is a schematic diagram of the partial structure of a headlight beam 100 provided in an embodiment of the present application in the upper part of the vehicle engine hood, as shown in FIG. Figure 6 As shown, combined with Figures 2 to 5 One end of the sheet metal cross beam 10 is connected to the front end frame 3 by bolts, and the other end of the sheet metal cross beam 10 is connected to the upper longitudinal beam by bolts; the headlight assembly 1 is installed on the plastic positioning block 20, wherein the two positioning holes 101 on the headlight assembly 1 are connected to the two third positioning protrusions 25 located at both ends of the top surface of the plastic positioning block 20, and the headlight assembly 1 is connected to the two second connecting members 40 located at both ends of the plastic positioning block 20 by bolts; the part of the front bumper (not shown in the figure) corresponding to the headlight cross beam 100 is supported by the bumper bracket 50, and the positioning holes on the part of the front bumper corresponding to the headlight cross beam 100 are connected to a third positioning protrusion 25 located in the middle of the top surface of the plastic positioning block 20, and the part of the front bumper corresponding to the headlight cross beam 100 is also connected to a second connecting member 40 located in the middle of the plastic positioning block 20 by bolts.

[0045] This headlight crossbeam 100 primarily consists of a sheet metal crossbeam 10 and plastic positioning blocks 20. Compared to existing headlight crossbeams constructed entirely of sheet metal, this headlight crossbeam 100 exhibits reduced Z-axis stiffness. During headform testing, this headlight crossbeam 100 absorbs head impact energy through Z-axis deformation, reducing head injury severity and thus meeting the HIC requirements of the headform test.

[0046] It should be noted that, in addition to installing the plastic locating block 20 on the top surface of the sheet metal beam 10, installing the plastic locating block 20 on the bottom of the sheet metal beam 10 and adaptively adjusting the connection holes, positioning protrusions, and other structures on the sheet metal beam 10 and the plastic locating block 20 can also achieve the effect of reducing the Z-direction stiffness of the headlight beam 100. In addition to being connected via the first connector 30, the sheet metal beam 10 and the plastic locating block 20 can also be connected via a plastic-coated steel process, with the plastic locating block 20 covering the sheet metal beam 10 at least in the Z-direction. For example, the plastic locating block can be covered on the top or bottom surface of the sheet metal beam 10. This connection structure can also achieve the effect of reducing the Z-direction stiffness of the headlight beam 100.

[0047] In summary, the headlight beam and vehicle provided in the embodiments of the present application are constructed from a sheet metal beam and a plastic positioning block connected in the Z direction by a first connector, or with the plastic positioning block wrapped around the sheet metal beam in the Z direction. Compared to existing headlight beams constructed entirely of sheet metal, this reduces Z-direction stiffness. During headform testing, the headlight beam provided in the present application can absorb head impact energy through Z-direction deformation, thereby reducing the head injury value and meeting the head injury index (HIC) requirements in headform testing. Furthermore, compared to solutions requiring a completely redesigned headlight design, the headlight beam and vehicle provided in the present application can reduce development costs and shorten development cycles.

[0048] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the field can easily think of various changes or replacements within the technical scope disclosed in the present application, which should all be included in the scope of protection of the present application.

Claims

1. A headlight beam, characterized in that: It includes a sheet metal crossbeam and a plastic positioning block, the plastic positioning block is used to position and fix the headlight assembly, the sheet metal crossbeam and the plastic positioning block are connected in the Z direction through a first connecting piece or the plastic positioning block is covered on the sheet metal crossbeam in the Z direction.

2. The headlight cross beam according to claim 1, characterized in that: The plastic positioning block is arranged on the top surface or the bottom surface of the sheet metal beam.

3. The headlight cross beam according to claim 1, characterized in that: The sheet metal crossbeam is provided with a plurality of first connecting holes, and the plastic positioning block is provided with a corresponding plurality of second connecting holes. The plurality of first connecting holes are respectively connected to the plurality of second connecting holes through the first connecting members.

4. The headlight cross beam according to claim 1, characterized in that: One of the sheet metal crossbeam and the plastic positioning block is provided with a plurality of positioning holes, and the other one is provided with a plurality of positioning protrusions, and the plurality of positioning holes are respectively connected to the plurality of positioning protrusions.

5. The headlight cross beam according to claim 4, characterized in that: The multiple positioning holes include at least one first positioning hole and at least one second positioning hole, the first positioning hole is a circular through hole, and the second positioning hole is a waist-shaped hole. The multiple positioning protrusions include at least one first positioning protrusion and at least one second positioning protrusion, the first positioning protrusion is a cross-shaped structure and is connected to the first positioning hole, and the second positioning protrusion is a straight-line structure and is connected to the second positioning hole.

6. The headlight cross beam according to claim 1, characterized in that: The plastic positioning block is provided with a plurality of second connecting pieces, and the second connecting pieces are used to cooperate with fasteners to connect with the headlight assembly.

7. The headlight cross beam according to claim 1, characterized in that: The plastic positioning block is provided with a third positioning protrusion, and the third positioning protrusion is used to connect with the positioning hole on the headlight assembly.

8. The headlight cross beam according to claim 1, characterized in that: One end of the sheet metal cross beam is provided with a plurality of third connection holes, and the third connection holes are used to connect to the front end frame. The other end of the sheet metal cross beam is provided with a plurality of fourth connection holes, and the fourth connection holes are used to connect to the upper longitudinal beam.

9. The headlight cross beam according to claim 1, characterized in that: Also includes: The bumper bracket is installed on the sheet metal cross member and is used for supporting the front bumper.

10. A vehicle, characterized in that: The invention comprises a headlight cross beam as claimed in any one of claims 1 to 9.

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