Engine cover structure

Abstract

The utility model relates to the technical field of automobile parts, in particular to an engine cover structure which comprises an engine outer cover (1) and an engine cover inner plate (2). A reinforcing plate (3) is arranged between the engine outer cover (1) and the engine cover inner plate (2); a first buffer structure is arranged on the engine cover inner plate (2); a second buffer structure is arranged on the reinforcing plate (3); the first buffer structure can weaken the structural strength of the engine cover inner plate in the area, so that the HIC value of a hard point area with insufficient energy absorption space at the edge is reduced; the second buffer structure can weaken the strength in the impact direction, so that the HIC value of a hard point at the junction of the middle penetrating lamp and the penetrating lamps on the two sides is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to an engine hood structure. Background Technology

[0002] Pedestrian accidents account for 20% of all traffic accidents. In pedestrian-vehicle collisions, pedestrians are in a relatively vulnerable position, and their mortality rate is significantly higher than that of other types of traffic accidents. An analysis of pedestrian databases from the United States, Germany, Japan, and Australia by the International Harmonized Research Activities Committee (IHRA) revealed that pedestrians have the highest probability of head and lower limb injuries, with head injury being the leading cause of pedestrian fatalities in collisions. Regulations use HIC (Head Injury) as a primary indicator. Criterion (Head Injury Criterion) defines the degree of head injury suffered by pedestrians. In pedestrian protection collisions, it is inevitable that the head impact injury value (HIC) will be higher than 1700 or the score of the entire head impact area will not meet the design requirements. The design cannot meet the energy absorption space requirements, and hard points are unavoidable. At this time, it is necessary to optimize the hard points and components in the vehicle that are prone to causing excessive injury values. For current vehicle models with continuous lights at the front, due to the structure of the light body and the aerodynamic requirements of the front of the vehicle, the point taken at the front edge of the hood and the intersection of the middle continuous light and the two side continuous lights are hard points that cannot meet the regulatory limits.

[0003] The applicant found through a search that Chinese patent document with publication number 203402273U disclosed on January 22, 2014, an inner panel for an automobile engine hood, an automobile engine hood, and a vehicle. The inner panel for the automobile engine hood includes an inner panel frame that is interconnected in a grid pattern, and the connection between the inner panel frames is arc-shaped. The outer edge of the inner panel frame is provided with a flange, and the inner panel frame is provided with a recessed glue-applying groove. This device also cannot solve the above-mentioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the existing engine hood structure. Utility Model Content

[0005] The purpose of this invention is to provide an engine hood structure that can optimize engine hood hard points and achieve pedestrian protection.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an engine cover structure, including an outer engine cover and an inner engine cover plate; a reinforcing plate is provided between the outer engine cover and the inner engine cover plate; a first buffer structure is provided on the inner engine cover plate; and a second buffer structure is provided on the reinforcing plate.

[0007] The bottom of the engine cover is provided with a headlight; the end of the engine cover is provided with an extension section; the extension section is located on top of the headlight; and extends along the vehicle's x-axis.

[0008] The inner panel of the engine hood is connected to the outer engine cover; the first buffer structure is respectively provided on both sides of the inner panel of the engine hood.

[0009] The first buffer structure includes an inner plate hole; the inner plate hole is respectively located on both sides of the inner plate of the engine cover.

[0010] The plurality of inner plate holes are evenly distributed on the inner plate of the engine hood.

[0011] The reinforcing plate is connected to the side of the engine cover near the inner plate of the engine cover; the second buffer structure is located at the bottom of the reinforcing plate.

[0012] The second buffer structure includes a diagonal bracing foot; the diagonal bracing foot is located at the bottom of the reinforcing plate.

[0013] A hinge is provided between the inner panel of the engine cover and the outer cover of the engine; the reinforcing plate is located on the side of the outer cover of the engine away from the hinge.

[0014] The reinforcing plate includes a first reinforcing plate and a second reinforcing plate; the first reinforcing plate includes a first horizontal bar; vertical bars are respectively connected to both ends of the first horizontal bar; the second reinforcing plate includes a second horizontal bar; a second vertical bar is connected to one end of the second horizontal bar; and a diagonal bar is connected to the other end of the second horizontal bar.

[0015] The top of the reinforcing plate is provided with a glue groove; the glue groove is provided with a glue layer; the glue layer is connected to the engine cover.

[0016] The beneficial effects of this application are as follows:

[0017] 1. The engine cover of this application has an extended section at its end; according to automotive production standards, the pedestrian protection marking is offset by 82.5mm from the front edge reference line of the engine cover; at this time, the front edge reference line falls on the headlight; the length of the extended section of this application is 6mm; so that the front edge reference line of the engine cover extends 6mm along the X-axis of the vehicle; at this time, the front edge reference line falls on the engine cover; the test point area is further back, that is, the actual impact point is more likely to be further back, providing more energy absorption space and avoiding the dangerous area of ​​the front edge of the hood penetrating the headlight.

[0018] 2. The engine hood inner panel of this application has openings on both sides, which weakens the structural strength of the engine hood inner panel in this area and reduces the HIC value of the hard spot area with insufficient energy absorption space at the edge.

[0019] 3. This application reduces the impact intensity by setting a diagonal bracing foot at the bottom of the reinforcing plate, thereby lowering the HIC value of the hard point at the junction of the central through light and the two side through lights. Attached Figure Description

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a structural diagram of the engine hood.

[0022] Figure 2 This is a schematic diagram of the reinforcing plate of the engine hood structure.

[0023] Figure 3 This is a schematic diagram of the engine cover structure.

[0024] Figure 4 This is a perspective view of the engine hood structure.

[0025] The markings in the above figures are all:

[0026] The diagram is marked as follows:

[0027] 1. Engine cover, 101. Extension section, 102. Hinge,

[0028] 2. Engine hood inner panel, 201. Inner panel holes,

[0029] 3. Reinforcing plate, 301, diagonal bracing legs,

[0030] 4. Car lights,

[0031] 5. First reinforcing plate, 501, Second reinforcing plate

[0032] 6. First horizontal bar; 601. First vertical bar; 602. Second horizontal bar; 603. Second vertical bar; 604. Diagonal bar.

[0033] 7. Glue tank. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0035] Figure 1 The engine hood structure shown includes an outer engine hood 1 and an inner engine hood panel 2; a reinforcing plate 3 is provided between the outer engine hood 1 and the inner engine hood panel 2; a first buffer structure is provided on the inner engine hood panel 2; and a second buffer structure is provided on the reinforcing plate 3.

[0036] The first buffer structure can weaken the structural strength of the inner panel 2 of the engine hood in this area, thereby reducing the HIC value of the hard spot area with insufficient energy absorption space at the edge; the second buffer structure can weaken the impact direction strength, thereby reducing the HIC value of the hard spot at the junction of the central through light and the two side through lights.

[0037] The bottom of the engine cover 1 is provided with a headlight 4; the end of the engine cover 1 is provided with an extension section 101; the extension section 101 is located on top of the headlight 4; and extends along the X-axis of the vehicle.

[0038] According to automotive production standards, the pedestrian protection marking is offset by 82.5mm from the leading edge reference line of the engine cover; at this time, the leading edge reference line falls on the headlight 4; the length of the extended section 101 in this application is 6mm; so that the leading edge reference line of the engine cover 1 extends 6mm along the X-axis of the vehicle; at this time, the leading edge reference line falls on the engine cover 1; the test point area is further back, that is, the actual impact point is more likely to be further back, providing more energy absorption space and avoiding the dangerous area of ​​the leading edge of the hood penetrating the headlight; the X-axis of the vehicle is the direction of the vehicle's forward movement.

[0039] The inner hood panel 2 is connected to the outer hood panel 1; the first buffer structure is respectively provided on both sides of the inner hood panel 2.

[0040] The inner hood panel 2 is hinged to one end of the outer hood panel 1; the edges of the inner hood panel 2 and the outer hood panel 1 are connected by edging; both sides of the inner hood panel 2 are provided with a first buffer structure.

[0041] The first buffer structure includes an inner plate hole 201; the inner plate hole 201 is respectively provided on both sides of the inner plate 2 of the engine cover.

[0042] The inner plate hole 201 is a waist-shaped hole and a through hole; the inner plate hole 201 is located on the top surface of the inner plate 2 of the engine hood and on both sides of the inner plate 2 of the engine hood; it weakens the structural strength of the inner plate 2 of the engine hood in this area, thereby reducing the HIC value of the hard spot area with insufficient energy absorption space at the edge.

[0043] Multiple inner plate holes 201 are evenly distributed on the inner plate 2 of the engine cover.

[0044] Multiple inner plate holes 201 are provided on both sides of the inner edge of the engine hood inner plate 2; this can evenly and sufficiently reduce the structural strength of the engine hood inner plate 2.

[0045] The reinforcing plate 3 is connected to the side of the engine cover 1 near the inner plate 2 of the engine cover; the second buffer structure is located at the bottom of the reinforcing plate 3.

[0046] Multiple reinforcing plates 3 are fixedly connected to the bottom surface of the engine cover 1; the reinforcing plates 3 are located on the side of the engine cover 1 near the headlight 4; the reinforcing plates 3 can strengthen the structural strength of the engine cover 1 and the front end of the engine cover inner plate 2.

[0047] The second buffer structure includes a diagonal bracing foot 301; the diagonal bracing foot 301 is located at the bottom of the reinforcing plate 3.

[0048] The inclined support foot 301 is tilted forward at 42 degrees; multiple inclined support feet 301 are fixedly connected to the bottom of the bottom of the reinforcing plate 3; the inclined support foot 301 is supported on the top of the inner plate 2 of the engine hood; the inclined support foot 301 can reduce the impact direction intensity, so that the hard point HIC value at the junction of the central through light and the two side through lights decreases.

[0049] A hinge 102 is provided between the inner hood panel 2 and the outer hood 1; a reinforcing plate 3 is provided on the side of the outer hood 1 away from the hinge 102.

[0050] Two hinges 102 are provided on the top surface of the inner hood panel 2 away from the headlight 4; they are connected to the bottom surface of the outer hood 1; the reinforcing plate 3 can strengthen the structural strength of the outer hood 1 and the front end of the inner hood panel 2.

[0051] The reinforcing plate 3 includes a first reinforcing plate 5 and a second reinforcing plate 501; the first reinforcing plate 5 includes a first horizontal bar 6; the two ends of the first horizontal bar 6 are respectively connected to a first vertical bar 601; the second reinforcing plate 501 includes a second horizontal bar 602; one end of the second horizontal bar 602 is connected to a second vertical bar 603; the other end of the second horizontal bar 602 is connected to a diagonal bar 604.

[0052] The first reinforcing plate 5 is located in the middle of the engine cover 1; the second reinforcing plates 501 are located on both sides of the engine cover 1; both ends of the first crossbar 6 of the first reinforcing plate 5 are connected by segments 601; one end of the second crossbar 602 of the second reinforcing plate 501 is connected to a diagonal bar 604; the diagonal bar 604 is located close to the first reinforcing plate 5.

[0053] The top of the reinforcing plate 3 is provided with a glue groove 7; the glue groove 7 is provided with a glue layer; the glue layer is connected to the engine cover 1.

[0054] Multiple adhesive grooves 7 are provided on the top surface of the reinforcing plate 3; adhesive layer is coated in the adhesive grooves 7; the adhesive layer is bonded to the engine cover 1; thereby achieving a stable connection between the reinforcing plate 3 and the bottom surface of the engine cover 1.

[0055] The specific workflow of this utility model is as follows:

[0056] The engine cover 1 has an extension section 101 at its end; the extension section 101 is 6mm long; so that the front edge reference line of the engine cover 1 extends 6mm along the X-axis of the vehicle; at this time, the front edge reference line falls on the engine cover 1.

[0057] Multiple inner panel holes 201 are provided on both sides of the inner panel 2 of the engine hood to weaken the structural strength of the inner panel 2 of the engine hood in this area; a diagonal bracing foot 301 is provided at the bottom of the reinforcing plate 3.

[0058] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An engine hood structure characterized by: The application relates to an engine cover, which comprises an engine outer cover (1) and an engine cover inner plate (2); a reinforcing plate (3) is arranged between the engine outer cover (1) and the engine cover inner plate (2); a first buffer structure is arranged on the engine cover inner plate (2); and a second buffer structure is arranged on the reinforcing plate (3).

2. An engine hood structure according to claim 1, characterized in that: The bottom of the engine outer cover (1) is provided with a vehicle lamp (4); the end of the engine outer cover (1) is provided with an elongated section (101); the elongated section (101) is arranged on the top of the vehicle lamp (4); and the elongated section (101) extends along the X axis of the vehicle.

3. An engine hood structure according to claim 2, characterized in that: The engine cover inner plate (2) is connected with the engine outer cover (1); and the first buffer structure is arranged on both sides of the engine cover inner plate (2) respectively.

4. An engine hood structure according to claim 3, characterized in that: The first buffer structure comprises inner plate holes (201); and the inner plate holes (201) are arranged on both sides of the engine cover inner plate (2) respectively.

5. An engine hood structure according to claim 4, characterized in that: A plurality of the inner plate holes (201) are uniformly distributed on the engine cover inner plate (2).

6. An engine hood structure according to any one of claims 2-5, characterized in that: The reinforcing plate (3) is connected to the side of the engine outer cover (1) close to the engine cover inner plate (2); and the second buffer structure is arranged on the bottom of the reinforcing plate (3).

7. An engine hood structure according to claim 6, characterized in that: The second buffer structure comprises inclined pull support feet (301); and the inclined pull support feet (301) are arranged on the bottom of the reinforcing plate (3).

8. An engine hood structure according to claim 7, characterized in that: A hinge (102) is arranged between the engine cover inner plate (2) and the engine outer cover (1); and the reinforcing plate (3) is arranged on the side of the engine outer cover (1) away from the hinge (102).

9. An engine hood structure according to any one of claims 7-8, characterized in that: The reinforcing plate (3) comprises a first reinforcing plate (5) and a second reinforcing plate (501); the first reinforcing plate (5) comprises a first horizontal rod (6); the two ends of the first horizontal rod (6) are respectively connected with first vertical rods (601); the second reinforcing plate (501) comprises a second horizontal rod (602); one end of the second horizontal rod (602) is connected with a second vertical rod (603); and the other end of the second horizontal rod (602) is connected with an inclined rod (604).

10. An engine hood structure according to claim 9, characterized in that: The top of the reinforcing plate (3) is provided with a glue groove (7); a glue layer is arranged in the glue groove (7); and the glue layer is connected with the engine outer cover (1).

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