Engine air inlet system and vehicle

Abstract

The utility model discloses an engine air inlet system and a vehicle, the engine air inlet system comprises a first air inlet pipeline and an air filter connected to one end of the first air inlet pipeline, and one end, far away from the air filter, of the first air inlet pipeline is provided with a first air inlet; the first air inlet pipeline is provided with a second air inlet, and the second air inlet is located between the first air inlet and the air filter and located behind a front end module in the vehicle. In the embodiment of the utility model, when air enters through the second air inlet, as the second air inlet is positioned behind the front-end module, snow is not easy to enter the second air inlet under the blocking of the front-end module, so that the snow is prevented from entering the first air inlet pipeline and the air filter.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an engine air intake system and a vehicle. Background Art

[0002] At present, the front grille design of hybrid vehicles is moving closer to that of pure electric vehicles, that is, only the grille opening is retained at the lower part of the front grille. The air intake of the engine can only inhale air from the lower grille.

[0003] However, when a car is driving on a snowy day or after snowing, the floating snow will be sucked into the engine air intake through the grille opening by the negative pressure, and the snow will gradually accumulate in the engine air intake duct and air filter until the engine air intake duct and air filter are blocked, causing the engine to malfunction. Utility Model Content

[0004] The utility model provides an engine air intake system and a vehicle, aiming to at least solve the technical problem of snow entering the engine air intake passage and the air filter in the prior art.

[0005] In a first aspect, an embodiment of the utility model provides an engine air intake system, applied to a vehicle, comprising a first air intake duct and an air filter connected to one end of the first air intake duct, wherein the end of the first air intake duct away from the air filter has a first air intake port;

[0006] The first air intake duct is provided with a second air intake port, the second air intake port is located between the first air intake port and the air filter, and the second air intake port is located behind the front end module in the vehicle.

[0007] Optionally, an air inlet switching component is provided on the first air inlet duct, and the air inlet switching component includes a first switching component, and the first switching component is used to open or close the second air inlet.

[0008] Optionally, the front-end module includes at least one heat exchanger, and the heat exchanger includes a plurality of fins.

[0009] Optionally, the first switching assembly includes a first baffle, which is rotatably connected in the first air intake duct, and a connection between the first baffle and the first air intake duct is located on a side of the second air intake port close to the first air intake port.

[0010] Optionally, the first air inlet duct includes a front pipe section located between the first air inlet and the second air inlet, and when the second air inlet is opened, the first baffle blocks an end of the front pipe section away from the first air inlet.

[0011] Optionally, when the first baffle is in a horizontal position, the first baffle blocks the second air inlet, and the second air inlet is closed;

[0012] When the first baffle is in a vertical position, the first baffle blocks an end of the front pipe section away from the first air inlet.

[0013] Optionally, the first switching assembly further includes a first rotating shaft connected to the first baffle and a first driving member connected to the first rotating shaft, the first rotating shaft is rotatably connected to the first air intake pipe, and the first driving member is used to drive the first rotating shaft to rotate.

[0014] Optionally, the air inlet switching component further includes a second switching component, and the second switching component is used to open or close the first air inlet.

[0015] Optionally, the vehicle further comprises a second air intake duct connected to the air filter, wherein one end of the second air intake duct away from the air filter is connected to a supercharger in the vehicle.

[0016] In a second aspect, an embodiment of the utility model provides a vehicle, comprising an engine intake system as described in any one of the above.

[0017] In the embodiment of the utility model, when air is taken in through the second air inlet, since the second air inlet is located behind the front-end module, snow is not easy to enter the second air inlet under the obstruction of the front-end module, thereby avoiding the entry of snow into the first air inlet duct and the air filter. In addition, after being blocked by the fins in the heat exchanger in the front-end module, the amount of snow mixed in the air will be greatly reduced, thereby reducing the amount of snow entering the first air inlet duct and the air filter, thereby avoiding the engine from being unable to work normally due to the blockage of the first air inlet duct and the air filter. In addition, the first air inlet duct has a first air inlet and a second air inlet, and different air inlets can be selected for air intake according to different external environments.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an engine air intake system provided by an embodiment of the utility model;

[0020] Figure 2 A schematic structural diagram of another engine air intake system provided in an embodiment of the utility model.

[0021] Reference numerals:

[0022] 1-first air intake duct, 11-first air intake port, 12-second air intake port, 13-front pipe section, 14-rear pipe section, 2-air filter, 3-front end module, 31-heat exchanger, 32-cooling fan, 4-second air intake duct, 5-engine cover, 6-front bumper, 7-air intake grille, 8-first switching assembly, 81-first baffle, 82-first rotating shaft, 83-first driving member, 9-second switching assembly. DETAILED DESCRIPTION

[0023] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] At present, the design of the front grille of hybrid vehicles is close to that of pure electric vehicles, that is, only the grille opening is retained at the lower part of the front grille. The air intake of the engine can only suck air from the lower grille. However, when the car is driving on a snowy day or after snowing, the floating snowflakes will be sucked in from the grille opening by the negative pressure of the engine air intake, and the snow will gradually accumulate in the engine air intake duct and air filter until the engine air intake duct and air filter are blocked, causing the engine to fail to work normally. In order to solve the above problems, the embodiment of the utility model provides an engine air intake system and a vehicle.

[0025] First, refer to Figure 1 The embodiment of the utility model discloses an engine air intake system, which is applied to a vehicle, and includes a first air intake duct 1 and an air filter 2 connected to one end of the first air intake duct 1. The first air intake duct 1 has a first air intake port 11 at one end away from the air filter 2; a second air intake port 12 is opened on the first air intake duct 1, and the second air intake port 12 is located between the first air intake port 11 and the air filter 2, and the second air intake port 12 is located behind a front-end module 3 in the vehicle.

[0026] Specifically, the vehicle includes a front-end module 3, a hood 5, a front bumper 6, an air intake grille 7, a supercharger and an engine. The front-end module 3 is arranged at the inner front end position of the vehicle's shell. The first air inlet 11 is located behind the front bumper 6 and above the front-end module 3. The second air inlet 12 is specifically located at the upper rear of the front-end module 3. It should be noted that the front, rear, upper and lower directions mentioned above are respectively consistent with the front, rear, upper and lower directions of the vehicle. When air is taken in through the second air inlet 12, the air first enters from the air intake grille 7, passes through the front-end module 3, and then enters the first air intake duct 1 through the second air inlet 12.

[0027] In winter, in low temperature scenarios, air is taken in through the second air inlet 12. Since the second air inlet 12 is located behind the front end module 3, snow is not easy to enter the second air inlet 12 under the obstruction of the front end module 3. In other scenarios, air is taken in through the first air inlet 11. The air filter 2 can filter the air entering through the first air inlet 11 or the second air inlet 12 to prevent dust and impurities from entering the engine.

[0028] In the embodiment of the utility model, when air is taken in through the second air inlet 12, since the second air inlet 12 is located behind the front-end module 3, snow is not easy to enter the second air inlet 12 under the obstruction of the front-end module 3, thereby avoiding the entry of snow into the first air inlet duct 1 and the air filter 2. In addition, after being blocked by the fins in the heat exchanger 31 in the front-end module 3, the amount of snow mixed in the air will be greatly reduced, thereby reducing the amount of snow entering the first air inlet duct 1 and the air filter 2, thereby avoiding the engine from not working properly due to the blockage of the first air inlet duct 1 and the air filter 2. In addition, the first air inlet duct 1 has a first air inlet 11 and a second air inlet 12, and different air inlets can be selected for air intake according to different external environments.

[0029] The first air intake duct 1 is provided with an air intake port switching assembly. Figure 1 In a preferred embodiment, the air inlet switching component includes a first switching component 8, and the first switching component 8 is used to open or close the second air inlet 12.

[0030] In this embodiment, the air inlet switching assembly only includes the first switching assembly 8. The first switching assembly 8 includes a first baffle 81, and the first baffle 81 can be rotatably connected to the first air inlet duct 1, or can be slidably connected to the first air inlet duct 1. The first baffle 81 is preferably rotatably connected to the first air inlet duct 1. Through the setting of the first switching assembly 8, the second air inlet 12 can be automatically opened or closed.

[0031] Reference Figure 2 In another embodiment, the air inlet switching component further includes a second switching component 9, and the second switching component 9 is used to open or close the first air inlet 11.

[0032] In this embodiment, the air inlet switching assembly includes a first switching assembly 8 and a second switching assembly 9. The structure of the second switching assembly 9 is preferably the same as that of the first switching assembly 8. The second switching assembly 9 may include a second baffle, which is rotatably connected to the first air inlet duct 1. When the second baffle is in a vertical position, the second baffle blocks the first air inlet 11, and the first air inlet 11 is closed. When the second baffle is in a horizontal position, the first air inlet 11 is connected to the front pipe section 13.

[0033] The second switching assembly 9 also includes a second baffle connected to the second baffle and a second driving member connected to the second rotating shaft, the second rotating shaft is rotatably connected to the first air intake duct 1, and the second driving member is used to drive the second rotating shaft to rotate. Through the setting of the second switching assembly 9, the first air intake 11 can be automatically opened or closed.

[0034] Reference Figure 1 The front-end module 3 includes at least one heat exchanger 31, and the heat exchanger 31 includes a plurality of fins.

[0035] Specifically, the number of heat exchangers 31 included in the front-end module 3 can be set according to actual needs, such as two, three, four, etc. The front-end module 3 preferably includes three heat exchangers 31, and the three heat exchangers 31 are arranged at intervals along the length direction of the vehicle. Each heat exchanger 31 includes a plurality of fins. The heat exchanger 31 plays a role in heat dissipation. At the same time, after being blocked by the fins in the heat exchanger 31, the amount of snow mixed in the air will be greatly reduced, thereby reducing the amount of snow entering the first intake duct 1 and the air filter 2, thereby avoiding the blockage of the first intake duct 1 and the air filter 2, which causes the engine to fail to work normally.

[0036] The front end module 3 further includes a cooling fan 32 , which is located behind all the heat exchangers 31 .

[0037] Reference Figure 1 The first switching assembly 8 includes a first baffle 81, which is rotatably connected to the first air intake duct 1, and the connection between the first baffle 81 and the first air intake duct 1 is located on the side of the second air intake port 12 close to the first air intake port 11. The first baffle 81 can be rotatably connected to the first air intake duct 1 through the first rotating shaft 82, and the structure is simple.

[0038] Reference Figure 1 The first air intake duct 1 includes a front pipe section 13 located between the first air intake port 11 and the second air intake port 12 . When the second air intake port 12 is opened, the first baffle 81 blocks an end of the front pipe section 13 away from the first air intake port 11 .

[0039] Specifically, the first air intake duct 1 also includes a rear pipe section 14 located between the second air intake port 12 and the air filter 2. When the second air intake port 12 is opened, the first baffle 81 blocks the end of the front pipe section 13 away from the first air intake port 11, the second air intake port 12 is connected to the rear pipe section 14, the first air intake port 11 is disconnected from the rear pipe section 14, and air is taken in through the second air intake port 12. In the embodiment of the utility model, when the second air intake port 12 is opened, the first baffle 81 can also disconnect the first air intake port 11 from the rear pipe section 14, and there is no need to set up other additional structures to close the first air intake port 11.

[0040] Reference Figure 1When the first baffle 81 is in a horizontal position, the first baffle 81 blocks the second air inlet 12, and the second air inlet 12 is closed; when the first baffle 81 is in a vertical position, the first baffle 81 blocks the end of the front pipe section 13 away from the first air inlet 11.

[0041] Specifically, when the cross-sectional shape of the first air intake duct 1 is circular, the shape of the first baffle 81 is also circular. When the first baffle 81 blocks the end of the front pipe section 13 away from the first air intake port 11, the first baffle 81 is in a vertical position, and the diameter of the first baffle 81 is designed to match the inner diameter of the first air intake duct 1, thereby saving the material cost of the first baffle 81.

[0042] The first switching assembly 8 further includes a first rotating shaft 82 connected to the first baffle 81 and a first driving member 83 connected to the first rotating shaft 82. The first rotating shaft 82 is rotatably connected to the first air intake duct 1, and the first driving member 83 is used to drive the first rotating shaft 82 to rotate. The first driving member 83 is preferably a motor. Through the arrangement of the first driving member 83, the first baffle 81 can be automatically driven to rotate.

[0043] The engine air intake system provided by the embodiment of the utility model further includes a second air intake duct 4 connected to the air filter 2, and one end of the second air intake duct 4 away from the air filter 2 is connected to a supercharger in the vehicle. The supercharger is connected to the engine, and the supercharger increases the intake volume by compressing air.

[0044] Figure 1 The engine air intake system shown in FIG. 1 further includes a controller, which is electrically connected to the first driving member 83. The controller can control the first driving member 83 to work based on the user's instructions, so that the first driving member 83 drives the first rotating shaft 82 and the first baffle 81 to rotate, so that the first baffle 81 rotates to a horizontal position or a vertical position.

[0045] Preferably, the controller is also electrically connected to a temperature sensor, which is used to monitor the ambient temperature. The controller is used to control the first driving member 83 to work based on the ambient temperature monitored by the temperature sensor, so that the first driving member 83 drives the first rotating shaft 82 and the first baffle 81 to rotate, so that the first baffle 81 rotates to a horizontal position or a vertical position.

[0046] Figure 1 The control method of the engine intake system shown in may include:

[0047] S1, obtaining the ambient temperature and determining whether the ambient temperature is greater than a preset temperature;

[0048] S2, if the ambient temperature is greater than the preset temperature, the first driving member 83 is controlled to work so that the first baffle 81 rotates to a vertical position;

[0049] S3, if the ambient temperature is less than or equal to the preset temperature, the first driving member 83 is controlled to operate so as to rotate the first baffle 81 to a horizontal position.

[0050] The control method of the engine intake system can be executed by a controller. The ambient temperature can be monitored by a temperature sensor. The preset temperature can be set according to actual needs, such as 0°C to -5°C. When the first baffle 81 rotates to a vertical position, air is taken in through the second air inlet 12. When the first baffle 81 rotates to a horizontal position, air is taken in through the first air inlet 11.

[0051] In a second aspect, the embodiment of the utility model further discloses a vehicle, comprising any one of the above engine air intake systems. Since the vehicle comprises the above engine air intake system, it also has the beneficial effects of the above engine air intake system, which will not be described in detail here.

[0052] The vehicle further comprises a front end module 3, a bonnet 5, a front bumper 6, an air intake grille 7, a supercharger and an engine. The supercharger is connected to the air filter 2 via a second air intake duct 4, and the supercharger is also connected to the engine.

[0053] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0054] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. An engine air intake system, applied to a vehicle, characterized in that: It comprises a first air intake duct and an air filter connected to one end of the first air intake duct, wherein the end of the first air intake duct away from the air filter has a first air intake port; The first air intake duct is provided with a second air intake port, the second air intake port is located between the first air intake port and the air filter, and the second air intake port is located behind the front end module in the vehicle.

2. The engine intake system according to claim 1, characterized in that: An air inlet switching component is disposed on the first air inlet duct, and the air inlet switching component includes a first switching component, and the first switching component is used to open or close the second air inlet.

3. The engine air intake system according to claim 1 or 2, characterized in that: The front-end module includes at least one heat exchanger, and the heat exchanger includes a plurality of fins.

4. The engine air intake system according to claim 2, characterized in that: The first switching assembly includes a first baffle, which is rotatably connected in the first air intake pipe, and the connection between the first baffle and the first air intake pipe is located on a side of the second air intake port close to the first air intake port.

5. The engine air intake system according to claim 4, characterized in that: The first air inlet duct includes a front pipe section located between the first air inlet and the second air inlet. When the second air inlet is opened, the first baffle blocks an end of the front pipe section away from the first air inlet.

6. The engine air intake system according to claim 5, characterized in that: When the first baffle is in a horizontal position, the first baffle blocks the second air inlet, and the second air inlet is closed; When the first baffle is in a vertical position, the first baffle blocks an end of the front pipe section away from the first air inlet.

7. The engine air intake system according to claim 4, characterized in that: The first switching assembly also includes a first rotating shaft connected to the first baffle and a first driving member connected to the first rotating shaft. The first rotating shaft is rotatably connected to the first air intake pipe, and the first driving member is used to drive the first rotating shaft to rotate.

8. The engine air intake system according to claim 2, characterized in that: The air inlet switching component also includes a second switching component, and the second switching component is used to open or close the first air inlet.

9. The engine air intake system according to claim 1, characterized in that: It also includes a second air intake duct connected to the air filter, wherein one end of the second air intake duct away from the air filter is connected to a supercharger in the vehicle.

10. A vehicle, characterized in that: An engine intake system comprising any one of claims 1 to 9.

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