Cabin cover assembly and vehicle

Abstract

The application relates to the technical field of vehicle bodies, and provides a cabin cover assembly and a vehicle. The cabin cover assembly comprises a cabin cover shell and a cabin cover inner plate arranged on the inner side of the cabin cover shell, and a cavity is formed between the cabin cover shell and the cabin cover inner plate. The front end of the cavity is provided with an air inlet opening on the cabin cover shell, and the rear end of the cavity is provided with an air outlet arranged at the tail of the cabin cover assembly. Meanwhile, a drainage opening is arranged on the cabin cover inner plate, and the drainage opening is provided with an openable and closable valve plate. In the open state of the valve plate, the airflow entering the cavity from the air inlet can enter the engine compartment below the cabin cover inner plate through the drainage opening. The cabin cover assembly of the application forms the cavity for the front and rear airflow, the drainage opening is arranged on the cabin cover inner plate, and the valve plate capable of being opened and closed is arranged. When the internal temperature of the engine compartment rises, the valve plate can be opened to make the airflow partially enter the engine compartment through the drainage opening, so that the ventilation and heat dissipation conditions in the engine compartment can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to an engine hood assembly and a vehicle. Background Technology

[0002] Because the engine compartment of a vehicle houses power drive and transmission components such as the engine, motor, and transmission, it generates heat during operation; therefore, there is a problem of insufficient heat dissipation capacity in the engine compartment during vehicle operation. With the continuous improvement of vehicle intelligence, a large number of intelligent components or other parts will be added to the engine compartment. The compact arrangement of these components further affects the airflow in the engine compartment and increases the heat load; the improved engine power performance will also further increase the temperature inside the compartment.

[0003] In traditional designs, air intake grilles are installed on the front body shell, bumper, and other parts. However, the opening area is limited by the opening space and surrounding components. Moreover, heat dissipation modules and other components are usually installed at the opening, so the air intake in the engine compartment cannot be guaranteed. The fan and heat dissipation module are limited by factors such as gravity and cost, and cannot improve the heat dissipation performance in the engine compartment indefinitely. As a result, there are still problems with poor heat dissipation performance in the engine compartment, leading to problems such as poor air circulation and excessive internal temperature. Utility Model Content

[0004] In view of this, this application aims to provide a hood assembly to improve ventilation and heat dissipation conditions in the engine compartment.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: An engine hood assembly includes an outer hood shell and an inner hood plate disposed inside the outer hood shell, with a cavity formed between the outer hood shell and the inner hood plate; the front end of the cavity has an air inlet on the outer hood shell, and the rear end of the cavity has an air outlet at the rear of the engine hood assembly; the inner hood plate is provided with a drain port, and the drain port is equipped with an openable and closable valve plate, wherein when the valve plate is open, airflow entering the cavity from the air inlet can enter the engine compartment located below the inner hood plate through the drain port.

[0006] Furthermore, the cavity is provided with a partition, which divides the cavity into multiple air ducts extending along the front-rear direction of the vehicle. The front and rear ends of each air duct are respectively connected to the air inlet and the air outlet; each air duct is provided with the drainage port.

[0007] Furthermore, the partition is integrally formed on the inner panel of the hatch cover.

[0008] Furthermore, the drainage port is located near the front end of the cavity, and the valve plate is hinged to the inner plate of the hatch on the rear side of the drainage port; under external force, the valve plate flips upward to open the drainage port.

[0009] Furthermore, the opening angle of the valve plate is adjustable.

[0010] Furthermore, the inner panel of the hatch cover is provided with a sinkhole located at the drain port. The drain port is opened at the bottom of the sinkhole. When the valve plate is flipped down to the closed state, the valve plate is housed in the sinkhole.

[0011] Furthermore, the inner panel of the hatch is provided with a dustproof net for covering the drainage port.

[0012] Furthermore, the front of the hatch shell is formed with a stepped facade facing the front of the vehicle, and the air inlet is opened on the stepped facade.

[0013] Furthermore, the stepped facade is provided with multiple air inlets, which are spaced apart in the left-right direction of the vehicle.

[0014] Compared with related technologies, this application has the following advantages: (1) The hood assembly of this application forms a cavity through which airflow can flow back and forth by reserving a certain gap between the hood outer shell and the hood inner plate, setting an air inlet on the hood outer shell, and setting an air outlet at the rear of the hood assembly. An air outlet is set on the hood inner plate, and a valve plate that can be opened and closed is provided for the air outlet. When the temperature inside the engine compartment rises, the valve plate can be opened to allow part of the airflow flowing through the cavity to enter the engine compartment through the air outlet, thereby improving the ventilation effect inside the engine compartment, so as to reduce the temperature inside the engine compartment and improve the ventilation and heat dissipation conditions inside the engine compartment.

[0015] (2) A certain number of baffles are set in the cavity to divide the cavity into multiple air ducts, which can effectively guide the airflow through the cavity; a corresponding number of air inlets are set for each air duct, which can better guide part of the airflow in each air duct to the engine compartment, thereby effectively improving the airflow diversion and distribution effect, and helping to further improve the ventilation and heat dissipation performance of the engine compartment.

[0016] (3) The baffle is integrally formed on the inner plate body of the hatch inner plate. The cavity is formed by the inner plate body and the hatch outer shell. The baffle integrally formed on the inner plate body divides the cavity into multiple air ducts, making the entire structure simpler and more efficient, and easier to process and construct. It has the advantages of low overall manufacturing cost and efficient assembly of the structure.

[0017] (4) The air inlet is set at the front end of the cavity, that is, the front end of the air duct mentioned above. At the same time, the valve plate is set at the rear side of the air inlet. The airflow entering from the air inlet can be blocked and guided by the valve plate that flips upward and opens first, and then efficiently enter the engine compartment through the air inlet. The overall airflow guidance layout is reasonable and efficient, which can improve the airflow introduction and ventilation effect in the engine compartment, and achieve the purpose of improving the cooling performance of the entire air inlet structure for the engine compartment.

[0018] (5) The valve plate adopts a drive control form with an adjustable opening angle, which can reasonably control the flow rate of the air introduced into the engine compartment, thereby adjusting the introduced air volume according to the degree of temperature rise in the engine compartment, so as to reduce the influence of the air diversion structure on the vehicle's driving resistance while meeting the cooling requirements of the engine compartment.

[0019] (6) Set a groove on the inner panel of the hatch corresponding to the outlet, and set the valve plate in the groove. When the valve plate is closed, it can be completely submerged in the groove. In this way, the valve plate can not only ensure the sealing effect of the outlet, but also make the bottom surface of the air duct more flat after the valve plate is closed when there is no need to ventilate and cool the engine compartment, thereby effectively reducing the resistance of the airflow through the air duct.

[0020] (7) A dustproof net is provided for the air inlet. While introducing external airflow into the engine compartment, it can prevent external dust, foreign objects and other objects from entering the engine compartment, thereby ensuring the cleanliness of the engine compartment.

[0021] (8) By constructing a stepped structure on the hatch shell and setting an air inlet on the stepped facade facing the front of the vehicle, the external airflow can be more efficiently introduced into the cavity during the vehicle's forward movement, and then guided into the engine compartment through the air outlet to achieve ventilation and cooling of the engine compartment.

[0022] (9) Multiple air inlets are arranged at intervals on the stepped facade to form a ventilation structure similar to a grille. This not only has a certain effect of blocking foreign objects from entering, but also has a certain decorative effect, which is conducive to improving the external appearance of the hatch shell.

[0023] Another object of this application is to provide a vehicle equipped with the hood assembly described in this application. The vehicle of this application possesses the technical advantages of the aforementioned hood assembly. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this application. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the hood assembly described in the embodiments of this application; Figure 2 This is a schematic diagram of the hood assembly described in this application after the hood shell is hidden; Figure 3 This is a schematic diagram of the structure of the inner panel of the hatch as described in the embodiments of this application; Figure 4 This is a structural schematic diagram of the hood assembly described in this application from one side of the bottom. Figure 5 This is a top view of the hood assembly described in the embodiments of this application; Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure at position AA in the middle; Figure 7 for Figure 6 A magnified view of the area shown in B.

[0025] Explanation of reference numerals in the attached figures: 1. Hatch cover shell; 10. Stepped facade; 100. Air inlet; 2. Hatch cover inner panel; 20. Inner panel body; 200. Drainage port; 201. Settling tank; 21. Valve plate; 210. Pivot pin; 22. Bulkhead; 3. Cavity; 30. Air duct; 300. Air outlet; 4. Dustproof netting; 40. Double-sided adhesive strips. Detailed Implementation

[0026] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] Furthermore, it should be stated in the description of this application that if terms indicating orientation or positional relationship, such as "up," "down," "left," "right," "front," "rear," "inner," and "outer," appear, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and for clarity and conciseness of expression, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Taking the vehicle described in this application as an example, the directional terms such as "up," "down," "left," "right," "front," and "rear" used in the embodiments are defined based on the vehicle's vertical direction (also known as the height direction), horizontal direction (also known as the width direction), and front-back direction (also known as the length direction). Specifically, as shown in the accompanying drawings, the X direction is the vehicle's front-back direction, where the side pointed by the arrow is "front," and the opposite is "rear." The Y direction is the vehicle's horizontal direction, where the side pointed by the arrow is "left," and the opposite is "right." The Z direction is the vehicle's vertical direction, where the side pointed by the arrow is "up," and the opposite is "down." "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the outline of the vehicle. The side of the vehicle outline closer to the middle of the vehicle is "inner", and the other side is "outer".

[0029] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be 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, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0030] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Because the engine compartment of a vehicle houses power drive and transmission components such as the engine, motor, and transmission, it generates heat during operation; therefore, there is a problem of insufficient heat dissipation capacity in the engine compartment during vehicle operation. With the continuous improvement of vehicle intelligence, a large number of intelligent components or other parts will be added to the engine compartment. The compact arrangement of these components further affects the airflow in the engine compartment and increases the heat load; the improved engine power performance will also further increase the temperature inside the compartment.

[0032] In traditional designs, air intake grilles are installed on the front body shell, bumper, and other parts. However, the opening area is limited by the opening space and surrounding components. Moreover, heat dissipation modules and other components are usually installed at the opening, so the air intake in the engine compartment cannot be guaranteed. The fan and heat dissipation module are limited by factors such as gravity and cost, and cannot improve the heat dissipation performance in the engine compartment indefinitely. As a result, there are still problems with poor heat dissipation performance in the engine compartment, leading to problems such as poor air circulation and excessive internal temperature.

[0033] In view of the above-mentioned problems in the related technologies, this application innovatively proposes a brand-new engine hood assembly that can improve the ventilation and heat dissipation conditions in the engine compartment.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] An embodiment of the first aspect of this application provides a hood assembly applicable to ventilation and heat dissipation scenarios in vehicle engine compartments; one exemplary structure is as follows: Figure 1 , Figure 2 and Figure 3 As shown.

[0036] Overall, the hood assembly includes a hood outer shell 1 and a hood inner panel 2 located inside the hood outer shell 1, with a cavity 3 formed between the hood outer shell 1 and the hood inner panel 2. The cavity 3 has an air inlet 100 on the hood outer shell 1 at its front end and an air outlet 300 at the rear end of the hood assembly. The hood inner panel 2 has an air outlet 200, which is equipped with an openable / closable valve plate 21. When the valve plate 21 is open, airflow entering the cavity 3 through the air inlet 100 can enter the engine compartment located below the hood inner panel 2 via the air outlet 200.

[0037] Based on the above overall design concept, a certain gap space is reserved between the outer shell 1 and the inner plate 2 of the hood, and an air inlet 100 is set on the outer shell 1, and an air outlet 300 is set at the rear of the hood assembly, thereby forming a cavity 3 that allows airflow to flow back and forth. An air outlet 200 is set on the inner plate 2 of the hood, and a valve plate 21 that can be opened and closed is configured for the air outlet 200. When the temperature inside the engine compartment rises, the valve plate 21 can be opened to allow part of the airflow flowing through the cavity 3 to enter the engine compartment through the air outlet 200, thereby improving the ventilation effect inside the engine compartment, so as to reduce the temperature inside the engine compartment and thus improve the ventilation and heat dissipation conditions inside the engine compartment.

[0038] It should be noted that, based on the above overall design concept, the technical solution of this application can adopt a variety of different specific implementation structures, forms, or configuration sequences. For example, the above-mentioned drainage port 200 can be set to different shapes such as direction and circle, and the valve plate 21 can adopt different driving methods such as electric or driven; the specific arrangement sequence and assembly method of the hatch shell 1, the hatch inner plate 2, and the valve plate 21 on it can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above overall setup, reasonable and flexible design can be carried out by referring to mature setting methods in the field and the actual situation during implementation, which will not be elaborated here. The specific implementation scheme described below in this embodiment is only one of the many solutions that can be formed by the above various combinations and variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many solutions that can be formed by the above-mentioned combinations and variations, as well as the specific implementation scheme of this embodiment, are all within the protection scope of this application.

[0039] Specifically, such as Figures 2 to 7 As shown, in this embodiment, as a preferred exemplary implementation among various feasible solutions, the cavity 3 is provided with a partition 22, which divides the cavity 3 into multiple air ducts 30 extending along the front-rear direction of the vehicle. Each air duct 30 is connected to an air inlet 100 and an air outlet 300 at both its front and rear ends. Correspondingly, each air duct 30 is provided with the aforementioned air inlet 200. The specific number of such inlets can be one or more. By providing a certain number of partitions 22 within the cavity 3 to divide it into multiple air ducts 30, the airflow within the cavity 3 can be effectively guided. The provision of a corresponding number of air inlets 200 for each air duct 30 allows for better diversion of some of the airflow within each air duct 30 into the engine compartment, thereby effectively improving the diversion and distribution of airflow and contributing to further improving the ventilation and heat dissipation performance of the engine compartment.

[0040] Of course, the bulkhead 22 can be constructed separately and added between the hatch cover outer shell 1 and the hatch cover inner plate 2, or it can be pre-fixed to the hatch cover outer shell 1 or the hatch cover inner plate 2. However, preferably, in this embodiment, the bulkhead 22 is integrally formed on the hatch cover inner plate 2. Specifically, the hatch cover inner plate 2 includes a flat inner plate body 20 and a plurality of bulkheads 22 integrally formed on the inner plate body 20. By integrally forming the bulkheads 22 on the inner plate body 20 of the hatch cover inner plate 2, the inner plate body 20 and the hatch cover outer shell 1 form a cavity 3. The bulkheads 22 integrally formed on the inner plate body 20 divide the cavity 3 into a plurality of air ducts 30, making the entire structure simpler and more efficient, easier to process and construct, and having advantages such as low overall manufacturing cost and efficient assembly.

[0041] Continue as Figures 4 to 7 As shown, in this embodiment, the air intake 200 is located near the front end of the cavity 3, and the valve plate 21 is hinged to the inner panel 2 of the hatch behind the air intake 200. Under external force, the valve plate 21 flips upward to open the air intake 200. By setting the air intake 200 at the front end of the cavity 3, which is the front end of the aforementioned air duct 30, and setting the valve plate 21 at the rear end of the air intake 200, the airflow entering from the air inlet 100 can be blocked and guided by the upwardly flipped and opened valve plate 21, and then efficiently enter the engine compartment through the air intake 200. The overall airflow guidance layout is reasonable and efficient, which can improve the airflow introduction and ventilation effect in the engine compartment, and achieve the purpose of improving the cooling performance of the entire air intake structure for the engine compartment.

[0042] There are, of course, various technical solutions to choose from regarding the specific setting of the driving method for the valve plate 21. For example, a motor and linkage transmission structure can be configured to achieve synchronous control of the opening angle of multiple valve plates 21, or a small servo motor can be used to directly drive the flipping action of the valve plate 21, and the opening angle of the valve plate 21 can be controlled by controlling the rotation angle of the motor. However, in order to obtain a better technical effect, the valve plate 21 in this embodiment adopts a drive control form with an adjustable opening angle. The valve plate 21 adopts a drive control form with an adjustable opening angle, which can reasonably control the flow rate of air introduced into the engine compartment, thereby adjusting the introduced air volume according to the degree of temperature rise in the engine compartment, so as to reduce the impact of the air diversion structure on the vehicle's driving resistance while meeting the cooling requirements of the engine compartment.

[0043] In specific implementation and application, mature methods or products in this field can be used, and adjustments can be made based on the convenience, rationality, and applicability of implementation. For example, the valve plate 21 can be hinged to the inner plate body 20 via a pivot pin 210, with the hinge position located at the rear edge of the drain port 200. The drive mechanism is located on the inner plate body 20 and is connected to the valve plate 21 in a transmission manner. The motor in the drive mechanism can be controlled by the vehicle's main control unit. A temperature sensor needs to be installed in the engine compartment to transmit the measured temperature signal to the main control unit in a timely manner. In this way, the opening degree of the valve plate 21 can be controlled in real time according to the temperature in the engine compartment.

[0044] In addition, such as Figure 7 As shown, in this embodiment, as a preferred exemplary implementation among various feasible solutions, the inner panel 2 of the hatch cover is provided with a recess 201 located at the inlet 200. The inlet 200 is opened at the bottom of the recess 201. When the valve plate 21 is flipped down to the closed state, the valve plate 21 is housed in the recess 201. The recess 201 is provided on the inner panel 2 of the hatch cover at the position corresponding to the inlet 200, and the valve plate 21 is correspondingly placed in the recess 201. When the valve plate 21 is closed, it can be completely submerged in the recess 201. In this way, the sealing effect of the valve plate 21 on the inlet 200 is ensured, and the bottom surface of the air duct 30 is flatter after the valve plate 21 is closed when there is no need to ventilate and cool the engine compartment, thereby effectively reducing the resistance of the airflow through the air duct 30.

[0045] Furthermore, the inner panel 2 of the hatch in this embodiment is also provided with a dustproof net 4 for covering the air inlet 200. By configuring the dustproof net 4 for the air inlet 200, external dust and foreign objects can be prevented from entering the engine compartment while introducing external airflow, thus ensuring the cleanliness of the engine compartment. Various technical solutions are available for the specific installation and fixing method of the dustproof net 4 at the air inlet 200; for example, the dustproof net 4 can be added to the air inlet 200 position on the inner panel body 20 by various methods such as screw installation, integral molding, and welding. As a preferred exemplary implementation among various feasible solutions, the dustproof net 4 in this embodiment is attached to one side of the bottom of the inner panel body 20 by double-sided adhesive strip 40 and is set corresponding to each air inlet 200 on the inner panel body 20. This achieves the covering of the air inlet 200, making assembly convenient and the assembly operation more efficient.

[0046] Regarding the specific placement and arrangement of the air inlet 100 on the hood housing 1, various technical solutions are available. For example, the air inlet 100 can be directly located at the front of the hood housing 1. Since the front of the hood housing 1 is typically sloping downwards towards the front of the vehicle, the air inlet 100 can also be directly located at the front of the hood housing 1, allowing external airflow to enter the cavity 3 through the air inlet 100 as the vehicle moves forward. However, to achieve better technical results, the following arrangement is preferred.

[0047] In this embodiment, the front of the hatch shell 1 is formed with a stepped facade 10 facing the front of the vehicle, and an air inlet 100 is formed on the stepped facade 10. By constructing a stepped structure on the hatch shell 1 and using the stepped facade 10 facing the front of the vehicle to set the air inlet 100, external airflow can be more efficiently introduced into the cavity 3 during vehicle movement, and then guided into the engine compartment through the drain port 200 to achieve ventilation and cooling of the engine compartment.

[0048] Based on the above configuration, preferably, multiple air inlets 100 can be opened on the stepped facade 10, and the air inlets 100 are arranged at intervals in the left-right direction of the vehicle; they can be evenly distributed at intervals or non-uniformly distributed. Arranging multiple air inlets 100 at intervals on the stepped facade 10 creates a grille-like ventilation structure, which not only effectively prevents foreign objects from entering but also has a decorative effect, improving the external appearance of the hatch shell 1.

[0049] Based on the above exemplary embodiments, as a preferred combination of the exemplary solutions, refer to Figures 1 to 7 As shown, the following partial structural scheme can be referred to when implementing the hood assembly of this application: To address the problem of insufficient heat dissipation in the engine compartment during vehicle operation, the hood assembly of this application incorporates a stepped structure on the outer shell 1 of the hood, with multiple air inlets 100 spaced apart along the width of the vehicle on the stepped surface 10 of this structure, serving as openings for the air intake channel. This allows external airflow to enter the cavity 3 formed between the outer shell 1 and the inner shell 2 of the hood through the air inlets 100. The rear of the hood assembly has an air outlet 300, which can be an opening formed between the rear ends of the outer shell 1 and the inner shell 2 of the hood, or a hole formed on the rear shell of the hood assembly. Preferably, the air outlet 300 should be positioned between the hood assembly and the windshield, so that the airflow from the air outlet 300 can dry and remove dust from the windshield. The cavity 3 forms an air intake channel between the outer shell 1 and the inner plate 2 of the hatch. The stepped structure on the outer shell 1 not only provides the position of the air inlet 100, but also provides the space for the formation of the cavity 3.

[0050] Meanwhile, three partitions 22 are arranged at intervals on the inner panel body 20 of the inner panel 2 of the hatch cover. The three partitions 22 are evenly distributed in the vehicle width direction, dividing the cavity 3 into four air ducts 30. Each air duct 30 has an outlet 200 on the inner panel body 20 at the bottom front end. Each outlet 200 has a groove 201 machined in it. A valve plate 21 is set on the plate behind the groove 201. It is opened and closed by flipping upward by a motor. When closed, the valve plate 21 can be locked into the groove 201 to keep the upper surface of the inner panel body 20 flat.

[0051] The partition 22 between the outer shell 1 and the inner plate 2 of the hatch has a good air guiding effect, which can prevent the airflow in the cavity 3 from being disordered. Furthermore, the tail of each air duct 30 is connected to the air outlet 300, which makes the airflow smoother and reduces the airflow resistance.

[0052] Under normal circumstances, the valve plate 21 is in the closed state. The airflow entering from the air inlet 100 passes through the various air ducts 30 in the cavity 3 and is discharged from the air outlet 300. When the temperature in the engine compartment rises during vehicle operation, the valve plate 21 at the air outlet 200 opens to the required angle, and the airflow flowing through the air duct 30 can be partially diverted into the air outlet 200 and then enter the engine compartment to achieve ventilation and heat dissipation for various components in the engine compartment.

[0053] like Figure 7As shown, the opening angle α of valve plate 21 can be adjusted appropriately according to the degree of temperature rise in the engine compartment, ensuring that the opening angle α of valve plate 21 meets the ventilation and heat dissipation requirements of the engine compartment. When valve plate 21 is open, the airflow entering the engine compartment through the inlet 200 can achieve localized cooling of various components in the engine compartment, accelerate air circulation, and achieve a heat dissipation effect. The opening angle α of valve plate 21 is adjusted according to the heat dissipation requirement. When the opening angle α reaches its maximum value, the air intake utilization rate reaches its maximum value; when the opening angle α is reduced, the airflow entering the engine compartment will also decrease accordingly, and the airflow not intercepted by valve plate 21 can flow along the air duct 30 to the outlet 300 at its rear, and then be discharged.

[0054] To prevent external dust and foreign objects from entering the engine compartment due to ventilation and heat dissipation, a dustproof mesh 4 is glued to the bottom of the inner panel body 20, which can effectively block dust and foreign objects. The glued method not only facilitates assembly but also makes replacement, cleaning, and disassembly easy.

[0055] In summary, the hood assembly of this embodiment, by reserving a certain gap between the hood outer shell 1 and the hood inner plate 2, and by providing an air inlet 100 on the hood outer shell 1 and an air outlet 300 at the rear of the hood assembly, forms a cavity 3 that allows airflow to flow back and forth. Furthermore, an air outlet 200 is provided on the hood inner plate 2, and a valve plate 21 that can be opened and closed is provided for the air outlet 200. When the temperature inside the engine compartment rises, the valve plate 21 can be opened to allow part of the airflow flowing through the cavity 3 to enter the engine compartment through the air outlet 200, thereby improving the ventilation effect inside the engine compartment, achieving the purpose of reducing the temperature inside the engine compartment, and thus improving the ventilation and heat dissipation conditions inside the engine compartment.

[0056] An embodiment of the second aspect of this application provides a vehicle having an engine hood assembly provided in the embodiment of the first aspect.

[0057] The vehicle of this application adopts the aforementioned engine hood assembly, which, based on the air inlet 100 provided on the outer shell 1 of the hood, the air duct 30 formed between the outer shell 1 of the hood and the inner plate 2 of the hood, and the air outlet 200 and valve plate 21 provided on the inner plate body 20, forms a ventilation and heat dissipation structure with controllable airflow for the engine compartment. It can directionally and quantitatively introduce external airflow into the engine compartment, force hot air out of the engine compartment through the intake air pressure, and at the same time use the temperature difference to locally cool the engine, transmission, pipeline and other components in the engine compartment, thereby achieving the effect of assisting the heat dissipation of the engine compartment.

[0058] During vehicle operation, vehicles equipped with the hood assembly described in this application can effectively solve the problem of excessive temperature caused by heat dissipation in the engine compartment. The opening mechanism and airflow guiding function of the valve plate 21 can effectively guide airflow into the engine compartment. The baffle 22 separates the airflow in the cavity 3 between the outer hood shell 1 and the inner hood plate 2, forming a straight air duct 30, which improves the utilization rate of airflow. Excess airflow that is not diverted can be smoothly discharged through the air outlet 300 at the rear of the air duct 30, reducing the wind resistance of the hood assembly.

[0059] In practical applications, the shape, quantity, and size of the air inlet 100, the air outlet 200, and the air outlet 300 can be flexibly set. For example, the air inlet 100 can be set as a horizontal grille, mesh, or other structural shapes; the shape of the valve plate 21 can be set to correspond to the shape of the air outlet 200. The number, position, and setting method of the partitions 22 can also be flexibly selected.

[0060] The above description is merely a preferred embodiment of this application. Detailed explanations of configurations, examples of specific structural arrangements, and descriptions of assembly and connection methods are provided to ensure sufficient disclosure so that those skilled in the art can better implement this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A nacelle canopy assembly, characterized in that: It includes a hatch cover shell (1) and a hatch cover inner plate (2) disposed inside the hatch cover shell (1), and a cavity (3) is formed between the hatch cover shell (1) and the hatch cover inner plate (2). The cavity (3) has an air inlet (100) on the outer shell (1) of the hatch, and the rear end of the cavity (3) has an air outlet (300) at the rear of the engine cover assembly; the inner plate (2) of the hatch is provided with a drain port (200), and the drain port (200) is equipped with an openable and closable valve plate (21). When the valve plate (21) is open, the airflow entering the cavity (3) from the air inlet (100) can enter the engine compartment located below the inner plate (2) of the hatch through the drain port (200).

2. The hood assembly according to claim 1, characterized in that: The cavity (3) is provided with a partition (22), which divides the cavity (3) into multiple air ducts (30) that extend along the front and rear direction of the vehicle. The front and rear ends of each air duct (30) are respectively connected to the air inlet (100) and the air outlet (300); each air duct (30) is provided with the drainage port (200).

3. The nacelle canopy assembly according to claim 2, characterized in that: The partition (22) is integrally formed on the inner panel (2) of the hatch cover.

4. The nacelle canopy assembly according to claim 1, characterized in that: The drain port (200) is located near the front end of the cavity (3), and the valve plate (21) is hinged to the inner plate (2) of the hatch behind the drain port (200); under the drive of external force, the valve plate (21) flips upward to open the drain port (200).

5. The hood assembly according to claim 4, characterized in that: The opening angle of the valve plate (21) is adjustable.

6. The nacelle canopy assembly according to claim 4, characterized in that: The inner panel (2) of the hatch cover is provided with a sink (201) located at the drain (200). The drain (200) is opened at the bottom of the sink (201). When the valve plate (21) is flipped down to the closed state, the valve plate (21) is contained in the sink (201).

7. The nacelle canopy assembly according to claim 1, characterized in that: The inner panel (2) of the hatch is provided with a dustproof net (4) for covering the drain port (200).

8. The nacelle canopy assembly according to any one of claims 1 to 7, characterized in that: The front of the hatch shell (1) is formed with a stepped facade (10) facing the front of the vehicle, and the air inlet (100) is opened on the stepped facade (10).

9. The nacelle canopy assembly according to claim 8, characterized in that: The stepped facade (10) is provided with a plurality of air inlets (100), and the air inlets (100) are arranged at intervals in the left and right directions of the vehicle.

10. A vehicle, characterized in that: The vehicle is equipped with a hood assembly as described in any one of claims 1 to 9.

Images