Engine hood and vehicle

Abstract

The utility model provides an engine hatch cover and a vehicle, the engine hatch cover comprises a hatch cover main body with an open hole and a grid plate rotatably arranged on the hatch cover main body, the grid plate rotates relative to the hatch cover main body and has a blocking state capable of blocking the open hole and an opening state capable of opening the open hole; the lower surface of the grid plate partially protrudes downwards, so that the cross section of the grid plate is in a wing shape, and the wing-shaped cross section of the grid plate is arranged in the width direction of the vehicle in an orthogonal mode. When the engine hatch cover is applied to a vehicle, due to the fact that the grid plate can rotate relative to the hatch cover body, when the vehicle needs heat preservation, the grid plate can be in a closed state, when a cabin needs heat dissipation, the grid plate can be in an open state, and due to the fact that the cross section of the grid plate is in a wing shape, the heat dissipation performance of the engine hatch cover is improved. Therefore, the effect of providing downward pressure at a high speed can be considered, and the stability of vehicle driving is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to an engine hood. At the same time, the utility model also relates to a vehicle provided with the engine hood. Background Art

[0002] The engine hood is a protective cover arranged above the engine. It is one of the most prominent parts on the vehicle body, mainly playing the role of protecting the engine and other parts in the engine compartment.

[0003] At present, the engine hoods of most vehicle models are designed as an integral closed large flat plate. If the temperature in the engine compartment is high, generally, heat dissipation holes are opened on the bottom guard plate of the engine compartment to guide the hot air flow out. Since the hot air is mainly concentrated in the upper part of the compartment first, this structure of opening heat dissipation holes on the bottom guard plate of the engine compartment is not conducive to the discharge of high-temperature gases.

[0004] In addition, a very small number of vehicle models adopt a fixed-opening design for the engine hood. Although this structure is conducive to the discharge of high-temperature gases, it is not beneficial to vehicle heat preservation and cold-state warming. Summary of the Utility Model

[0005] In view of this, the utility model aims to provide an engine hood, which is applied to a vehicle, can take into account the functions of heat preservation and heat dissipation, and is beneficial to improving the stability of vehicle operation.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] An engine hood includes a hood main body with an opening, and a grille rotatably arranged on the hood main body;

[0008] The grille rotates relative to the hood main body, and has a closed state capable of closing the opening and an open state of opening the opening;

[0009] The lower surface of the grille bulges downward locally, so that the cross-sectional shape of the grille is in an airfoil shape, and the airfoil cross-section of the grille is arranged orthogonally to the width direction of the vehicle.

[0010] Further, the upper surface of the grille conforms to the upper surface of the hood main body.

[0011] Further, the leading edge of the airfoil cross-section is arranged towards the vehicle head;

[0012] The trailing edge of the airfoil cross-section is arranged towards the vehicle tail.

[0013] Further, the maximum thickness H of the airfoil cross-section is between 10 cm and 14 cm.

[0014] Further, the chord length L1 of the airfoil cross-section is between 8 cm and 12 cm.

[0015] Further, the distance L2 from the leading edge to the position of the maximum thickness of the airfoil cross-section is 25%-35% of the chord length L1.

[0016] Further, there are a plurality of grille plates, and the plurality of grille plates are spliced and connected to close the opening, and the plurality of grille plates are arranged in sequence along the length direction of the vehicle.

[0017] Further, a motor is provided on the hatch body, and the motor is drivingly connected to the grille plate through a power transmission mechanism.

[0018] Further, the power transmission mechanism includes a first connecting rod and a second connecting rod;

[0019] One end of the first connecting rod is pivotally connected to one end of the second connecting rod, the other end of the first connecting rod is pivotally connected to the grille plate, and the other end of the second connecting rod is connected to the power output end of the motor.

[0020] When the engine hatch of the present utility model is applied to a vehicle, since the grille plate can rotate relative to the hatch body, when the vehicle needs heat preservation, the grille plate can be in a closed state, and when the engine compartment needs to dissipate heat, the grille plate can be in an open state. And because the cross-sectional shape of the grille plate is airfoil-shaped, it can take into account the function of providing downward pressure at high speed, which is beneficial to improving the driving stability of the vehicle.

[0021] In addition, the upper surface of the engine compartment conforms to the upper surface of the hatch body, which is beneficial to ensuring the aesthetic appearance of the vehicle. Defining the orientation of the leading edge and the trailing edge of the airfoil cross-section is beneficial to providing better downward pressure for the vehicle at high speed.

[0022] In addition, defining the maximum thickness, chord length, and the distance from the leading edge to the position of the maximum thickness of the airfoil cross-section is beneficial to ensuring the stiffness and strength of the grille plate.

[0023] And defining the arrangement direction of the grille plates is convenient for overall layout. The power transmission mechanism includes a first connecting rod and a second connecting rod, and the structure is simple, and the driving force of the motor can be better transmitted to the grille plate.

[0024] Another object of the present utility model is to provide a vehicle, and the vehicle is provided with the engine hatch as described above.

[0025] The vehicle of the present utility model and the foregoing engine hatch have the same beneficial effects as those of the prior art, and will not be described in detail herein. Description of the Drawings

[0026] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0027] Figure 1 It is a schematic structural diagram of the engine hood according to an embodiment of the present utility model;

[0028] Figure 2 is Figure 1 A schematic structural diagram of the structure without the grille panel assembled;

[0029] Figure 3 is Figure 1 A schematic structural diagram from another perspective;

[0030] Figure 4 is along Figure 3 A cross-sectional view taken along line A-A in

[0031] Figure 5 It is a schematic structural diagram of the grille panel according to an embodiment of the present utility model;

[0032] Figure 6 It is a schematic structural diagram of the airfoil cross-section of the grille panel according to an embodiment of the present utility model.

[0033] Explanation of reference numerals:

[0034] 1. Hood main body; 2. Grille panel; 3. First connecting rod; 4. Second connecting rod; 5. Motor; a. Leading edge; b. Trailing edge;

[0035] 101. Opening; 201. Rotating shaft. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "linkage", and "connector" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0039] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0040] This embodiment relates to an engine hood, which is improved in its own structure to meet the requirements of heat preservation, heat dissipation and wind resistance reduction, and can improve the operation stability of the vehicle.

[0041] Based on the above design concept, an exemplary structure of the engine hood in this embodiment is as Figures 1 to 4 shown, which mainly includes a hood body 1 with an opening 101, and a grille 2 rotatably arranged on the hood body 1. The grille 2 rotates relative to the hood body 1 and has a closed state capable of closing the opening 101 and an open state of opening the opening 101.

[0042] In a preferred embodiment, there are multiple grilles 2, and the multiple grilles 2 are spliced and connected to be able to close the opening 101, and the multiple grilles 2 are arranged in sequence along the length direction of the vehicle. In this structure, the arrangement direction of the grilles 2 is defined, which is convenient for overall layout.

[0043] In this embodiment, the number of openings 101 is one, and the number of grilles 2 is seven. The seven grilles 2 can be combined to jointly block the opening 101. It should be noted here that the number of grilles 2 is not limited to one, and it can also be other numbers, such as two, three, five, etc. The arrangement order of the grilles 2 can be along the length direction of the vehicle or along the width direction of the vehicle. The number and position of the openings 101 can also be adjusted adaptively according to actual needs.

[0044] Each grille 2 is rotatably arranged on the engine hood through a rotating shaft 201. The direction of the rotating shaft 201 preferably extends along the width direction of the vehicle. The driving mechanism of the grille 2 can be multiple or one. For example, the driving mechanism of the grille 2 can adopt a small or micro motor, which directly drives the rotating shaft 201 of one or more grilles 2 to rotate. Preferably, the driving mechanism of the grille 2 drives the rotating shaft 201 of one or more grilles 2 to rotate through a power transmission mechanism. The power transmission mechanism can be, for example, a link mechanism. That is to say, one motor 5 can drive one grille 2 to rotate, or one motor 5 can drive multiple grilles 2 to rotate, both of which are acceptable.

[0045] As a preferred embodiment, Figure 5 and Figure 6 As shown, the grid plate 2 is preferably a hollow structure, and the lower surface of the grid plate 2 partially protrudes downward, so that the cross-section of the grid plate 2 is an airfoil. The airfoil cross-section of the grid plate 2 is arranged orthogonally to the width direction of the vehicle. The upper surface of the grid plate 2 follows the upper surface of the hatch cover body 1, which is conducive to ensuring the aesthetic appearance of the vehicle.

[0046] The existing closed engine hood will block the connection between the airflow inside and outside the cabin, and cannot fully utilize the internal and external airflow to produce aerodynamic performance that is beneficial to the vehicle model, such as increasing the downforce of the vehicle at high speeds. The engine hood of this embodiment is applied to the vehicle. During the driving process of the vehicle, especially at high speeds, because the airflow passes through the upper and lower surfaces of the grille 2 at different speeds, a pressure difference with a combined downward force will be formed. This pressure difference can provide downforce for the vehicle at high speeds, thereby improving the vehicle's operational stability.

[0047] As a preferred embodiment, the leading edge a of the airfoil cross section is arranged toward the head of the vehicle, and the trailing edge b of the airfoil cross section is arranged toward the rear of the vehicle. Here, the directions of the leading edge a and the trailing edge b of the airfoil cross section are limited, which is conducive to providing better downforce for the vehicle at high speed.

[0048] As a preferred embodiment, Figure 6 As shown, the maximum thickness H of the airfoil cross section is between 10cm and 14cm, such as 10cm, 11cm, 12cm, 13cm, 14cm, etc. The chord length L1 of the airfoil cross section is between 8cm and 12cm, such as 8cm, 9cm, 10cm, 11cm, 12cm, etc. The distance L2 from the maximum thickness position of the airfoil cross section to the leading edge a is 25%-35% of the chord length L1, such as 25%, 27%, 30%, 32%, 35%. Here, limiting the maximum thickness and chord length of the airfoil cross section, as well as the distance from the maximum thickness position to the leading edge a, is conducive to ensuring the rigidity and strength of the grid plate 2.

[0049] In addition, the size of the grille 2 in the width direction of the vehicle is preferably between 40 cm and 60 cm, such as 40 cm, 45 cm, 50 cm, 55 cm, 60 cm, etc. It is worth mentioning that the sizes of the grille 2 can be adjusted according to the specific design of the vehicle model to provide appropriate downforce for the vehicle.

[0050] As a preferred embodiment, Figure 5 As shown, the hatch cover body 1 is provided with a driving mechanism for the grid plate 2, which may be, for example, a motor 5, which is drivingly connected to the grid plate 2 via a power transmission mechanism.

[0051] In this embodiment, the power transmission mechanism includes a first connecting rod 3 and a second connecting rod 4. One end of the first connecting rod 3 is pivotally connected to one end of the second connecting rod 4. The other end of the first connecting rod 3 is pivotally connected to the grille plate 2, and the other end of the second connecting rod 4 is connected to the power output end of the motor 5.

[0052] With such a setting, the driving force output by the motor 5 drives the second connecting rod 4 to move. The second connecting rod 4 drives the first connecting rod 3 to act. Driven by the first connecting rod 3, the grille plate 2 rotates relative to the hatch body 1 with its own rotating shaft 201 as the center, and can rotate from the closed state to the open state. To restore the grille plate 2 from the open state to the closed state, the motor 5 just needs to rotate in the reverse direction, which will not be elaborated here.

[0053] In a preferred embodiment, the length of the first connecting rod 3 is less than that of the second connecting rod 4, which is beneficial to providing an appropriate driving force for the grille plate 2. And the power transmission mechanism includes the first connecting rod 3 and the second connecting rod 4, with a simple structure, and can better transmit the driving force of the motor 5 to the grille plate 2.

[0054] When the engine hood of this embodiment is applied to a vehicle, due to the opening 101 and the grille plate 2 provided, the grille plate 2 can rotate relative to the hatch body 1. When the vehicle needs heat preservation, the grille plate 2 can be in the closed state, and when the engine compartment needs heat dissipation, the grille plate 2 can be in the open state. And because the cross-sectional shape of the grille plate 2 is airfoil-shaped, it can take into account the function of providing a downward pressure at high speeds, which is beneficial to improving the driving stability of the vehicle.

[0055] It should also be supplemented here that, as a preferred embodiment, a sealing structure for sealing the gap between the grille plate 2 and the hatch body 1 is provided, and a sealing structure for sealing the gap between each grille plate 2 and the hatch body 1 is also provided.

[0056] In this embodiment, an O-ring can be configured for each grille plate 2. Each O-ring is annular and surrounds the edge of the corresponding grille plate 2. An O-ring matching the opening 101 can also be provided for the hatch body 1, and this O-ring surrounds the circumference of the opening 101. In this way, the O-ring of the grille plate 2 can cooperate with the O-ring of the opening 101, and can better seal the gap between adjacent grille plates 2 and between the grille plate 2 and the hatch body 1. When the grille plate 2 is in the closed state, a good sealing effect can be achieved.

[0057] This embodiment also relates to a vehicle, which is provided with the above-mentioned engine hood and the aforementioned control device.

[0058] For the vehicle of this embodiment, by installing the aforementioned engine hood, it can take into account the functions of heat preservation, heat dissipation and providing a downward pressure at high speeds, and is also beneficial to improving the driving stability of the vehicle.

[0059] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An engine hood, characterized in that: It comprises a hatch cover body (1) having an opening (101), and a grid plate (2) rotatably arranged on the hatch cover body (1); The grid plate (2) rotates relative to the hatch cover body (1) and has a closed state capable of closing the opening (101) and an open state capable of opening the opening (101); The lower surface of the grid plate (2) partially protrudes downward, so that the cross-section of the grid plate (2) is in the shape of an airfoil, and the airfoil cross-section of the grid plate (2) is arranged orthogonally to the width direction of the vehicle.

2. The engine hood according to claim 1, characterized in that: The upper surface of the grid plate (2) follows the upper surface of the hatch cover body (1).

3. The engine hood according to claim 1, characterized in that: The leading edge (a) of the airfoil cross section is arranged toward the head of the vehicle; The trailing edge (b) of the airfoil cross section is arranged towards the rear of the vehicle.

4. The engine hood according to claim 1, characterized in that: The maximum thickness H of the airfoil cross section is between 10 cm and 14 cm.

5. The engine hood according to claim 1, characterized in that: The chord length L1 of the airfoil cross section is between 8 cm and 12 cm.

6. The engine hood according to claim 5, characterized in that: The distance L2 between the maximum thickness position of the airfoil cross section and the leading edge (a) is 25%-35% of the chord length L1.

7. The engine hood according to claim 1, characterized in that: There are a plurality of grid plates (2), and the plurality of grid plates (2) are spliced and connected to close the opening (101), and the plurality of grid plates (2) are arranged in sequence along the length direction of the vehicle.

8. The engine hood according to any one of claims 1 to 7, characterized in that: The hatch cover body (1) is provided with a motor (5), and the power output end of the motor (5) is transmission-connected to the grid plate (2) via a power transmission mechanism.

9. The engine hood according to claim 8, characterized in that: The power transmission mechanism comprises a first connecting rod (3) and a second connecting rod (4); One end of the first connecting rod (3) is pivotally connected to one end of the second connecting rod (4), the other end of the first connecting rod (3) is pivotally connected to the grid plate (2), and the other end of the second connecting rod (4) is connected to the power output end of the motor (5).

10. A vehicle, characterized in that: The vehicle is provided with an engine hood according to any one of claims 1-9.

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