Air intake structure, engine air intake system, vehicle

Abstract

This application discloses an air intake structure, an engine air intake system, and a vehicle, which can reduce the entry of objects such as snowflakes into the engine's air intake pipe, thus ensuring the normal operation of the engine. The air intake structure provided in this application includes a housing forming an air intake channel. The housing wall has an air inlet and an air outlet, each being a port of the air intake channel. The housing wall also has an air intake opening penetrating the wall. The air intake structure further includes a passage switching component rotatably connected to the housing. In a first position, the passage switching component blocks the connection between the air inlet and the air outlet, and the air intake opening connects to the air outlet. In a second position, the passage switching component blocks the connection between the air intake opening and the air outlet, and the air inlet and the air outlet connect.

Description

Technical Field

[0001] This application relates to the field of vehicle intake system technology, specifically to an intake structure, an engine intake system, and a vehicle. Background Technology

[0002] For vehicles equipped with engines, maintaining a low intake air temperature is necessary to improve engine charging efficiency, enhance engine performance, and reduce fuel consumption. This requires drawing in fresh air from the outside, necessitating a relatively unobstructed and unique intake passage. However, with the increasing popularity of long-distance road trips and the growing frequency of snowy days in winter, even with a smooth and unique intake passage, the probability of snowflakes intruding into the intake system is increasing. This poses a greater risk of insufficient engine performance or engine malfunction. Therefore, preventing snowflakes from entering the engine intake system during snowy weather has become a pressing technical problem that needs to be solved. Utility Model Content

[0003] The purpose of this application is to provide an intake structure, an engine intake system, a vehicle, and an engine intake method that can reduce the entry of objects such as snowflakes into the engine's intake pipe, thereby helping to ensure the normal operation of the engine.

[0004] To solve the above-mentioned technical problems, this application provides an air intake structure, including a housing, the housing forming an air intake channel, the wall of the housing having an air inlet and an air outlet, the air inlet being one port of the air intake channel, and the air outlet being the other port of the air intake channel; the wall of the housing also has an air intake opening penetrating the wall.

[0005] The air intake structure also includes a passage switching component, which is rotatably connected to the housing.

[0006] The pathway switching component is located in the first position, whereby the pathway switching component blocks the connection between the air inlet and the air outlet, and the air inlet opening is connected to the air outlet; the pathway switching component is located in the second position, whereby the pathway switching component blocks the connection between the air inlet opening and the air outlet, and the air inlet and the air outlet are connected.

[0007] Optionally, the air intake structure further includes a flow guide component, and an air intake passage is formed between the air intake opening and the air outlet, with the flow guide component provided in the air intake passage.

[0008] Optionally, the flow guiding component includes a first flow guiding component and / or a second flow guiding component; at least a portion of the hole wall corresponding to the air intake opening forms the first flow guiding component, and / or, the second flow guiding component is disposed on the side of the passage switching component near the air intake opening.

[0009] Optionally, the second flow guide component is an arc-shaped plate, the passage switching component is in the second position, and the arc-shaped plate bends toward the air intake opening.

[0010] Optionally, the side wall of the air intake opening closest to the air intake is a slope.

[0011] Optionally, the air intake channel includes a first channel segment and a second channel segment connected to each other, the first channel segment and the second channel segment having an angle greater than 90°, the port of the first channel segment away from the second channel segment being the air intake port, and the port of the second channel segment away from the first channel segment being the air outlet port;

[0012] The housing includes a first housing segment corresponding to the first channel segment and a second housing segment corresponding to the second channel segment. The air intake opening is disposed on the wall of the second housing segment, or on the wall of the first housing segment near the end of the second housing segment.

[0013] Optionally, the width of the first housing segment is greater than the width of the second housing segment, and the air intake opening is disposed in the first housing segment.

[0014] Optionally, the first housing segment has an annular groove, and the air intake structure further includes a sealing ring, a portion of which is embedded in the annular groove, and the sealing ring is used for a sealed connection with the front-end module of the vehicle.

[0015] Optionally, the air intake structure further includes a connecting component, which is integrally formed with or separately connected to the housing, and is used to connect to the front-end module of the vehicle.

[0016] Optionally, a connecting component is provided at each end of the width direction of the housing. Each connecting component includes a first connecting segment and a second connecting segment. The first connecting segment extends away from the housing and upward in the width direction of the housing, and the second connecting segment extends forward. The air inlet is located in front of the air outlet.

[0017] Optionally, the connecting component includes a channel plate structure, one section of which is the first connecting section and the other section is the second connecting section; at least one of the inner and outer sides of the bottom wall of the channel plate structure is provided with reinforcing ribs.

[0018] Optionally, the housing includes a first housing portion and a second housing portion, wherein the first housing portion and the second housing portion are separately disposed and fixedly connected;

[0019] The top of the first housing portion has a partial mounting opening, and the second housing portion covers the mounting opening.

[0020] Optionally, the intake structure includes a drive component for driving the passage switching component to flip, and the drive component is directly or indirectly mounted on the housing.

[0021] This application also provides an engine intake system, the engine intake system including an intake passage, the intake passage including the intake structure described in any of the above claims, the intake opening communicating with the engine compartment;

[0022] The air intake passage also includes a main air intake passage structure, which includes an active air intake grille located on the lower side of the front of the vehicle, as well as a wind deflector and a cooling module for engine cooling; the first opening of the air intake structure is connected to the main air intake passage structure.

[0023] This application also provides a vehicle including the engine intake system described above.

[0024] The intake structure in this application includes a passage switching component. This component can be flipped to a first position or a second position, thereby opening a first intake passage between the intake and exhaust ports, or opening a second intake passage between the intake opening and the exhaust port. After the intake structure is installed in the engine intake system, the first intake passage can connect to the main intake passage structure directly connected to the outside of the engine intake system, and the second intake passage can directly connect to the engine compartment. Thus, in snowy weather, the passage switching component can be driven to rotate and open the second intake passage, preventing snowflakes and other debris from entering the engine's intake pipes and ensuring normal engine operation. In snowless weather, the passage switching component can be controlled to flip to the first position to introduce sufficient fresh air, thereby improving engine charging efficiency, enhancing engine performance, and reducing fuel consumption.

[0025] In addition, the technical solution of this application provides an air intake opening on the housing to introduce airflow into the second air intake passage, that is, to use the housing itself to set up another air intake passage. One housing has two switchable first air intake passages and second air intake passages without the need to add other pipelines. The structure is simple and realizes the arrangement and switching of two air intake passages in the case of relatively limited space.

[0026] The engine intake system in this application includes the aforementioned intake structure, thereby achieving the same technical effect.

[0027] The vehicle described in this application has the aforementioned engine intake system or the intake structure described in any of the above-mentioned claims, and therefore also has the same technical effect. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the air intake structure in the first embodiment of this application;

[0029] Figure 2 for Figure 1 A schematic diagram of the central air intake structure from another perspective;

[0030] Figure 3 for Figure 1 Exploded view of the central air intake structure;

[0031] Figure 4 for Figure 1 A schematic diagram of a cross-section along the AA direction;

[0032] Figure 5 for Figure 4 A schematic diagram of the structure in which the central path switching component flips to the second position;

[0033] Figure 6 This is a schematic diagram of the structure of an engine intake system according to an embodiment of this application;

[0034] Figure 7 for Figure 6 Schematic sectional view along the BB direction;

[0035] Figure 8 for Figure 7 A comparative diagram of two intake paths in the intake system of a medium-sized engine;

[0036] Figure 9 for Figure 2 A schematic diagram of the assembly of the drive components and the passage switching components of the central air intake structure;

[0037] Figure 10 for Figure 9 A schematic diagram of the connection between the central path switching component and the rotating shaft;

[0038] Figure 11 This is a schematic diagram of the air intake structure in the second embodiment of this application;

[0039] Figure 12 for Figure 1 Cross-sectional schematic diagram of the central air intake structure;

[0040] Figure 13 This is a schematic diagram of the air intake structure in the third embodiment of this application;

[0041] Figure 14 for Figure 13 A cross-sectional view of the central air intake structure, with the passage switching component in the first position;

[0042] Figure 15 for Figure 14 A schematic diagram of the passage switching component of the middle air intake structure in the second position.

[0043] The annotations in the attached figures are explained as follows:

[0044] 10 - Active grille shutter;

[0045] 20 - Front bumper;

[0046] 30 - Front-end module;

[0047] 40-Air guide cover;

[0048] 50-Intake structure; 501-Housing shell; 5011-First housing section; 5011a-Annular groove; 5011b-Notch; 5011c-Intake opening; 50111-Snap-fit; 50112-Snap-fit ​​part; 50113-First airflow guide component; 5012-Second housing section; 501a-Intake channel; 501a1-Intake port; 501a2-Outlet port; 5013-First housing section; 5014-Second housing section; 502-Drive component; 503-Rotating shaft; 5031-Transmission gear; 504-Passage switching component; 505-Connecting component; 5051-First reinforcing rib; 5052-Second reinforcing rib; 505a-Connecting hole; 506-Second airflow guide component; 507-Mounting base;

[0049] 60 - Upper crossbeam;

[0050] 70 - Cooling module;

[0051] 80-bolt;

[0052] 0a - Main intake passage structure. Detailed Implementation

[0053] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] The ordinal numbers used in this article, such as first and second, are used to distinguish different parts with the same name and do not indicate a specific order or primary / secondary relationship.

[0055] Please refer to Figures 1 to 5 , Figure 1 This is a schematic diagram of the intake structure 50 in the first embodiment of this application; Figure 2 for Figure 1 Another structural schematic diagram of the central air intake structure 50; Figure 3 for Figure 1 Exploded view of the central air intake structure 50; Figure 4 for Figure 1 A schematic diagram of a cross-section along the AA direction; Figure 5 for Figure 4A schematic diagram of the structure of the middle path switching component 504 flipped to the second position.

[0056] The air intake structure 50 in this embodiment includes a housing 501, which forms an air intake channel 501a. The wall of the housing 501 has an air inlet 501a1 and an air outlet 501a2. The air inlet 501a1 is one port of the air intake channel 501a, and the air outlet 501a2 is the other port of the air intake channel 501a. The wall of the housing 501 also has an air intake opening 5011c that penetrates the wall. The air intake opening 5011c penetrates the wall of the housing 501 in the inward and outward direction, so the air intake opening 5011c can connect the air intake channel 501a and the outside of the housing 501.

[0057] The intake structure 50 also includes a flow path switching component 504. In this embodiment, the flow path switching component 504 is specifically a flap located within the intake channel 501a. The flow path switching component 504 can be rotatably connected to the housing 501. The direction from the intake port 501a1 to the outlet port 501a2 is the direction of airflow entering the intake channel 501a, and it is also the extension direction of the intake channel 501a. The intake channel 501a has a cross-section perpendicular to the extension direction, and the rotation axis of the flow path switching component 504 is also perpendicular to the extension direction. The flow path switching component 504 can flip within the intake channel 501a, thus having multiple positions. A first position and a second position can be defined, and the first position and the second position can be the two endpoints of the flipping stroke.

[0058] like Figure 4 As shown, the passage switching component 504 is located in the first position. At this time, the passage switching component 504 blocks the air inlet 501a1 and the air outlet 501a2. The cross-section of the air inlet channel 501a corresponding to the first position has a first contour, and the passage switching component 504 has a second contour. The first contour and the second contour are adapted to each other, and the passage switching component 504 and the inner wall of the housing 501 at the first position can be sealed together. Of course, there can also be a gap between the passage switching component 504 and the inner wall of the housing 501. Although this allows a small amount of airflow to pass through, it is beneficial to the smooth rotation of the passage switching component 504. Thus, when the passage switching component 504 is located in the first position, it can block the connection between the air inlet 501a1 and the air outlet 501a2. At this time, the air inlet opening 5011c on the housing 501 connects to the air outlet 501a2, and the area between the air inlet opening 5011c and the air outlet 501a2 is the first air inlet passage. Figure 4 This illustrates that airflow can flow from the air inlet to the air outlet 501a2.

[0059] like Figure 5As shown, the passage switching component 504 is in the second position. The passage switching component 504 seals the air intake opening 5011c, blocking the connection between the air intake opening 5011c and the air outlet 501a2. The entire air intake channel 501a is then in a conductive state, and the second air intake passage between the air intake 501a1 and the air outlet 501a2 is connected. Figure 5 The diagram illustrates the airflow from the inlet 501a1 to the outlet 501a2. It can be seen that the passage switching component 504 is used to switch between the first and second air intake passages. The passage switching component 504 is not limited to a plate-shaped flap structure, but can also be other structural forms. Similarly, it is not limited to being rotatably connected to the housing 501, as long as its position can change relative to the housing.

[0060] Please continue to combine Figure 6 and Figure 7 understand, Figure 6 This is a schematic diagram of the structure of an engine intake system according to an embodiment of this application; Figure 7 for Figure 6 A cross-sectional view along the BB direction.

[0061] The engine intake system in this embodiment includes an intake passage section, and the aforementioned intake structure 50 is a part of the intake passage section. Specifically, a part of the intake passage section is located at the front of the vehicle, extending generally from bottom to top, i.e., it is a roughly vertical passage structure. For example, the vehicle using this engine intake system in this embodiment can be a range-extended electric vehicle. The essence of a range-extended electric vehicle is still pure electric drive; the vehicle's driving power is entirely provided by the drive motor. The engine does not directly participate in driving the vehicle but plays the role of generating electricity. When the power battery's charge is insufficient, the engine starts, converting fuel into electrical energy to power the drive motor or charge the power battery. Therefore, the design of a range-extended electric vehicle retains the design characteristics of an electric vehicle, such as... Figure 6 As shown, the active air intake grille 10 is located on the lower side of the front of the vehicle, forming an air intake channel for air intake from below.

[0062] like Figure 7As shown, the engine intake system includes an active air intake grille 10, a front bumper 20, a cooling module 70, an air deflector 40, and a front module 30. The front module 30 can be the front combination lamp frame of the vehicle. These components can be sealed together to enclose a main intake channel structure 0a for external airflow. The main intake channel structure 0a is the main component of the aforementioned intake channel section. The top of the cooling module 70 has an upper crossbeam 60, which is also sealed together with the front module 30 and the cooling module 70 to prevent hot air from the engine compartment from entering the main intake channel structure 0a. The aforementioned intake structure 50 is located on the upper side of the front of the vehicle. The intake structure 50 can be fixedly connected to the front module 30. The air intake port 501a1 and the air outlet 501a2 of the intake structure 50 can be arranged front-to-back. Here, "front" and "rear" refer to the front and rear of the vehicle, and "up" and "down" refer to the vertical position of the vehicle. See [reference needed]. Figure 7 Directional indication.

[0063] Please continue to combine Figure 8 understand, Figure 8 for Figure 7 A comparative diagram of two intake paths in the intake system of a medium-sized engine.

[0064] When the intake structure 50's passage switching component 504 is in Figure 5 In the second position shown, the intake opening 5011c is blocked by the passage switching component 504, and the first intake passage between the intake port 501a1 and the outlet 501a2 is open. Therefore, the intake path of the engine intake system will be... Figure 8 In the left-side state, airflow can enter from the position of the active air intake grille 10, then flow upward and backward to enter the air intake passage 501a of the air intake structure 50, then flow out from the air outlet 501a2 and flow to the air intake pipe of the engine air intake system (not shown in the figure).

[0065] When the intake structure 50's passage switching component 504 is in Figure 4 In the first position shown, the passage switching component 504 blocks the connection between the air intake 501a1 and the air outlet 501a2, and the air intake opening 5011c opens and connects with the air outlet 501a2, that is, the second air intake passage is connected. Therefore, the air intake path of the engine intake system will be... Figure 8In the right-side state, airflow can enter from the position of the active air intake grille 10. Since the rearward passage of the air intake 501a1 is blocked, the airflow will flow directly backward (when the first air intake passage is open, the airflow will flow along the first air intake passage because the resistance of the cooling module 70 is greater than the resistance of the first air intake passage). The cooling module 70 can be a radiator. The airflow can pass backward through the cooling module 70, enter the engine compartment, and then flow upward. After passing through the air intake opening 5011c of the air intake structure 50, it flows from the air outlet 501a2 to the engine's air intake pipe.

[0066] Of course, apart from the cooling module 70 side, the engine compartment is not completely sealed. Even for range-extended electric vehicles, although the engine compartment is relatively sealed, there are still gaps connecting it to the outside. Therefore, airflow from other locations will still enter the engine compartment. The airflow entering through the intake opening 5011c includes airflow from the active air intake grille 10 and airflow from other locations entering the engine compartment. It can be seen that the airflow from the active air intake grille 10 needs to pass through the cooling module 70 before entering the engine compartment. Therefore, the temperature of this part of the airflow will be higher than that of the vehicle's external environment. That is, when the intake structure 50's passage switching component 504 is in the first position, the airflow temperature entering the engine's intake pipe will be relatively high, while when the intake structure 50's passage switching component 504 is in the second position, the airflow temperature entering the engine's intake pipe will be relatively low.

[0067] In this way, ambient temperature and / or weather can be monitored. When the ambient temperature is not lower than a preset temperature, such as not lower than 0°C, and there is no snowfall, the passage switching component 504 of the intake structure 50 can be in the second position, allowing air to be drawn in from the intake passage, that is, directly introducing airflow from outside the vehicle to prevent the intake temperature from becoming too high. The airflow direction is as follows: Figure 8 The left image.

[0068] When the ambient temperature is lower than the preset temperature, such as below 0°C, or during snowfall, the drive passage switching component 504 can be flipped from the second position to the first position. In this embodiment, it needs to rotate 90° from the second position to reach the first position, thereby closing the first air intake passage so that air can enter from the air intake opening 5011c. Then, the airflow in the engine compartment or the airflow heated by the cooling module 70 and entering from the active air intake grille 10 can enter the engine's intake pipe to increase the intake air temperature. The airflow direction is shown in the figure. Figure 8 The right figure shows the active air intake grille 10. As mentioned earlier, when the active air intake grille 10 is located on the lower front of the vehicle, snowflakes and other objects are more likely to enter the engine compartment in rainy or snowy weather. However, the intake path guided by the second air intake passage helps to prevent snowflakes and other objects from entering the engine's intake pipe.

[0069] It should be noted that in this embodiment, an air intake opening 5011c is provided on the housing 501 to introduce airflow into the air intake channel 501a. The air intake opening 5011c is directly connected to the engine compartment, that is, another air intake passage is set up by the housing 501 itself. One housing 501 has two switchable first air intake passages and second air intake passages without the need to add other pipelines. The structure is simple and realizes the arrangement and switching of two air intake passages in a relatively limited space.

[0070] In this embodiment, the rotation angle of the passage switching component 504 between the first position and the second position is 90°. When specifically assembled into a vehicle, the passage switching component 504 can be in a vertical position in the first position and in a horizontal position in the second position. Of course, the rotation range and specific orientation of the passage switching component 504 can be designed according to actual needs.

[0071] You can continue to refer to this. Figure 4 , 5 In this embodiment, the intake passage 501a of the intake structure 50 includes a first passage segment and a second passage segment connected to each other. The second passage segment bends downward relative to the first passage segment to connect with the engine's intake pipe. The first and second passage segments can be configured to have an angle α greater than 90°. The port of the first passage segment furthest from the second passage segment is the intake port 501a1, and the port of the second passage segment furthest from the first passage segment is the exhaust port 501a2. The intake opening 5011c is located in the second passage segment, or at one end of the first passage segment near the second passage segment. This ensures that the airflow path entering through the intake opening 5011c does not have a large bend, thereby reducing airflow resistance and helping to control airflow noise.

[0072] like Figure 1 , 8 As shown, the intake structure 50 also has a connecting component 505 for connecting to the front module 30 of the vehicle, so as to more reliably install the intake structure 50 in the engine intake system.

[0073] For example, a connecting member 505 is provided at each end of the housing 501 in the width direction, which is also the width direction of the vehicle and is perpendicular to the aforementioned front-rear and vertical directions, such as... Figure 7 As shown. Each connecting component 505 includes a first connecting segment and a second connecting segment. The first connecting segment extends upward, specifically extending away from the housing 501 in the width direction of the housing 501, and simultaneously extending upward. That is, the first connecting segment on the left side extends upward and to the left, and the first connecting segment on the right side extends upward and to the right. The second connecting segment extends forward, thus forming... Figure 1The wing shape shown is to increase the reliability of the connection with the front-end module 30.

[0074] In some embodiments, both the first connecting segment and the second connecting segment can be a grooved plate structure, such as... Figure 1 As shown, the main structure of the connecting component 505 is a channel plate structure with an upward-facing U-shaped groove. This connecting component 505 has good rigidity and a weight reduction effect. At least one of the inner or outer sides of the bottom wall of the channel plate structure can be provided with reinforcing ribs to further improve strength. Figure 1 , 2 The diagram illustrates the first reinforcing rib 5051 and the second reinforcing rib 5052. The first reinforcing rib 5051 is connected to the inner side of the bottom wall of the channel plate structure, that is, it is located in the U-shaped channel. The extension direction of the first reinforcing rib 5051 is consistent with the extension direction of the first connecting section and the second connecting section, and it can be located in the middle of the U-shaped channel. The second reinforcing rib 5052 can be located below the first connecting section and the second connecting section and connected to the housing 501. Either the first reinforcing rib 5051 or the second reinforcing rib 5052 can be set. The combination of the two can better ensure the strength of the connecting component 505, thereby improving the reliability of the connection between the air intake structure 50 and the front-end module 30.

[0075] Specifically, the connecting component 505 may be provided with a connecting hole 505a to achieve a fixed connection with the front end module 30 by inserting a fastener into the connecting hole 505a. The fastener is, for example, a bolt 80 (shown in...). Figure 11 In this embodiment, the connecting component 505 and the housing 501 are integrally formed, indicating that they can also be separately set and then fixedly connected.

[0076] like Figure 2 As shown, the housing 501 may also have a snap fastener 50111, which is used to snap into the intake manifold of the engine. Specifically, the snap fastener 50111 can be a protrusion provided on the outer surface of the housing 501, which can insert one end of the housing 501 with the air outlet 501a2 into the intake manifold to form a snap connection. This connection method is simple and reliable.

[0077] In detail, the housing 501 in this embodiment may include a first housing part 5011 and a second housing part 5012, that is, the housing 501 is a split structure. The first housing part 5011 and the second housing part 5012 are separately arranged and fixedly connected, which facilitates demolding and assembly of the passage switching component 504. Figure 2 The air intake structure 50 in the diagram is a schematic diagram after the second housing part 5012 has been removed. In this embodiment, the partial opening at the top of the first housing part 5011 is defined as the mounting opening, and the second housing part 5012 can cover the mounting opening to form a complete housing 501.

[0078] At this time, the first housing portion 5011 may be provided with a snap-fit ​​portion 50112, and the snap-fit ​​portion 50112 may be... Figure 2 The snap-fit ​​groove shown has a plate-like structure for the second housing portion 5012. Snap-fit ​​protrusions can be provided on the edges of the second housing portion 5012, which can be inserted into the snap-fit ​​groove to achieve snap-fit, simplifying assembly. Of course, the first housing portion 5011 and the second housing portion 5012 can also use other connection methods, such as interference fit or connection via fasteners, etc., and this embodiment does not impose any limitations.

[0079] As one specific implementation, in this embodiment, the housing 501 of the air intake structure 50 is not designed with a uniform width from front to back, such as... Figure 3 As shown, the portion of housing 501 corresponding to the first channel segment is a first housing segment 5013 of approximately equal width, and the portion of housing 501 corresponding to the second channel segment is a second housing segment 5014 of approximately equal width. However, the width of the second housing segment 5014 is smaller than that of the first channel segment of the first housing segment 5013. These two segments of housing 501 are smoothly connected, which ensures a larger intake cross-sectional area, meaning that airflow can more easily enter from the intake port 501a1. The constricted design of the second housing segment 5014 further facilitates connection with the engine's intake pipe. In this embodiment, the intake opening 5011c is located in the first housing segment 5013, also to maximize the intake cross-sectional area. The intake opening 5011c can be designed to be as equal as possible to the intake cross-sectional area of ​​the intake port 501a1.

[0080] like Figure 1 As shown, the air intake structure 50 in this embodiment has an annular groove 5011a. One end of the housing 501 with the air inlet 501a1 has the annular groove 5011a, meaning the first housing section 5013 has the annular groove 5011a. The air intake structure 50 may include a sealing ring (not shown in the figure). A portion of the sealing ring can be embedded in the annular groove 5011a. This allows the air intake structure 50 to seal against the inner wall of the front-end module 30 when installed, ensuring smooth airflow from the active air intake grille 10 into the air intake structure 50. A notch 5011b can be provided on the wall corresponding to the annular groove 5011a, and a portion of the sealing ring can be embedded in the notch 5011b to increase the reliability of the assembly with the housing 501 and prevent the sealing ring from detaching from the housing 501.

[0081] like Figure 9 , 10 As shown, Figure 9 for Figure 2 A schematic diagram of the assembly of the drive component 502 and the passage switching component 504 of the central air intake structure 50; Figure 10 for Figure 9 A schematic diagram showing the connection between the central path switching component 504 and the rotating shaft 503.

[0082] As mentioned earlier, the passage switching component 504 needs to be rotated to either the first or second position depending on the operating conditions. In this embodiment, a drive component 502 is provided to drive the passage switching component 504 to automatically rotate, thereby achieving automated control and improving control efficiency. The drive component 502 may include a motor, and the air intake structure 50 also includes a rotating shaft 503. The rotating shaft 503 and the passage switching component 504 are fixedly connected or circumferentially limited, so that when the rotating shaft 503 rotates, it can drive the passage switching component 504 to rotate. The motor of the drive component 502 can drive the rotating shaft 503 to rotate, thereby driving the passage switching component 504 to rotate. Figure 10 As shown, the rotating shaft 503 and the passage switching component 504 are connected by an insert. One end of the rotating shaft 503 has a transmission gear 5031. The motor can have an output gear that meshes with the transmission gear 5031 of the rotating shaft 503 to drive the rotating shaft 503 to rotate. This transmission configuration is reliable and easily provides the required torque. Of course, the way the drive component 502 drives the passage switching component 504 to rotate is also limited to this. The drive component 502 can be equipped with a controller to control the passage switching component 504 to flip to the desired first or second position according to the current ambient temperature and weather conditions. Of course, when the passage switching component 504 is in a position between the first and second positions, the airflow entering from the first intake passage and the airflow entering from the second intake passage can also be mixed, that is, cold airflow and hot airflow can be mixed to meet more diverse intake requirements.

[0083] The intake structure 50 may include a mounting base 507 fixed to the housing 501, and the drive component 502 may be mounted on the mounting base 507, such as... Figure 3 As shown, the mounting base 507 can be a plate structure located on one side of the width direction of the housing 501. The mounting base 507 can be separately fixed to the housing 501, or it can be integrally set with the housing 501. Setting the mounting base 507 makes it easy and reliable to indirectly install the drive component 502 to the housing 501. Of course, it can also be directly installed to the housing 501.

[0084] Please continue to refer to this. Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of the intake structure 50 in the second embodiment of this application; Figure 12 for Figure 1 A cross-sectional view of the central air intake structure 50.

[0085] In this embodiment, the air intake structure 50 is basically the same as that in the first embodiment, except that the air intake structure 50 in the second embodiment also includes a flow guide component. The second air intake passage is equipped with a flow guide component, which is used to guide the airflow entering the air intake channel 501a from the air intake opening 5011c. As mentioned above, the air intake structure 50 directly opens the air intake opening 5011c in the wall of its housing 501 to intake air. There is an angle between the air intake opening 5011c and the air intake channel 501a. The flow guide component helps to improve the smoothness of airflow and reduce flow resistance.

[0086] In this embodiment, the flow guiding component includes a first flow guiding component 50113, and at least a portion of the hole wall corresponding to the air inlet opening 5011c forms the first flow guiding component 50113. For example... Figure 12 As shown, the side of the air intake opening 5011c closest to the air intake 501a1 is the front side. The wall of the front side opening can be set as a slope to serve as the first flow guide component 50113, sloping from front to back and upward. This can guide the airflow backward and upward, thereby reducing the angle between the airflow and the second channel section and reducing flow resistance. The wall of the front side opening can be thickened, with a thickness greater than that of the opening walls at other locations, in order to form a slope with a larger flow guide stroke.

[0087] Please continue to refer to this. Figures 13 to 15 , Figure 13 This is a schematic diagram of the intake structure 50 in the third embodiment of this application; Figure 14 for Figure 13 A cross-sectional view of the central air intake structure 50, with the passage switching component 504 in the first position; Figure 15 for Figure 14 A schematic diagram of the passage switching component 504 of the middle air intake structure 50 in the second position.

[0088] The third embodiment is basically the same as the intake structure 50 of the second embodiment, except that the flow guiding component in the third embodiment also includes a second flow guiding component 506, which is disposed between the intake opening 5011c and the outlet 501a2. Specifically, the second flow guiding component 506 is disposed on the side of the passage switching component 504 near the intake opening 5011c. The second flow guiding component 506 can be an arc-shaped plate, and the passage switching component 504 and the second flow guiding component 506 form a roughly "Y"-shaped bifurcated structure. (Comparison) Figure 14 and Figure 15It is understood that when the flow switching component 504 is in the first position, the second flow guiding component 506 bends towards the second channel section, serving the same function as the first flow guiding component 50113: guiding the airflow more gently towards the second channel section, reducing flow resistance, and controlling airflow noise. When the flow switching component 504 is flipped to the second position, it is relatively flat and latches onto the air intake opening 5011c to maximize the first air intake passage. At this time, part of the second flow guiding component 506 can be located outside the housing 501, meaning the second flow guiding component 506 does not interfere with the flow switching component 504 latching onto the air intake opening 5011c. Obviously, the shape and size of the second flow guiding component 506 need to ensure that when the flow switching component 504 is in the second position, the second flow guiding component 506 can be located in or extend out of the air intake opening 5011c.

[0089] It is understood that the second flow guiding component 506 is not limited to being mounted on the passage switching component 504; it can also be fixed to the housing 501. However, when mounted on the passage switching component 504, the second flow guiding component 506 will not interfere with the airflow from the inlet 501a1 to the outlet 501a2 when the passage switching component 504 is flipped to open the first air intake passage between the inlet 501a1 and the outlet 501a2. Furthermore, the second flow guiding component 506 is not limited to an arc-shaped plate; for example, a straight inclined plate can also achieve the purpose of flow guiding, but an arc-shaped plate has a better flow guiding effect.

[0090] In the third embodiment, a first flow guiding component 50113 and a second flow guiding component 506 are simultaneously provided. When the path switching component 504 is located... Figure 14 In the first position shown, the first guide component 50113 and the second guide component 506 form a roughly "S"-shaped guide structure, which can better guide the airflow. However, it is known that it is also feasible to set only the first guide component 50113 or only the second guide component 506.

[0091] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An air intake structure characterized by, The device includes a housing (501) forming an air intake channel (501a). The wall of the housing (501) has an air inlet (501a1) and an air outlet (501a2). The air inlet (501a1) is one port of the air intake channel (501a), and the air outlet (501a2) is the other port of the air intake channel (501a). The wall of the housing (501) also has an air intake opening (5011c) that penetrates the wall. The intake structure (50) also includes a passage switching component (504); The path switching component (504) is located in the first position, whereby the path switching component (504) blocks the connection between the air inlet (501a1) and the air outlet (501a2), and the air inlet opening (5011c) is connected to the air outlet (501a2); the path switching component (504) is located in the second position, whereby the path switching component (504) blocks the connection between the air inlet opening (5011c) and the air outlet (501a2), and the air inlet (501a1) and the air outlet (501a2) are connected.

2. The air intake structure of claim 1, wherein The air intake structure (50) further includes a flow guide component, and an air intake passage is formed between the air intake opening (5011c) and the air outlet (501a2), and the air intake passage is equipped with the flow guide component.

3. The air intake structure of claim 2, wherein The flow guiding component includes a first flow guiding component (50113) and / or a second flow guiding component (506); at least a portion of the hole wall corresponding to the air inlet opening (5011c) forms the first flow guiding component (50113), and / or, the second flow guiding component (506) is disposed on the side of the passage switching component (504) near the air inlet opening (5011c).

4. The air intake structure of claim 3, wherein The second flow guide component (506) is an arc-shaped plate, the passage switching component (504) is in the second position, and the arc-shaped plate bends toward the air intake opening (5011c).

5. The air intake structure according to claim 3 or 4, characterized by, The side wall of the air inlet (501a1) corresponding to the air inlet opening (5011c) is inclined.

6. The gas inlet structure according to any one of claims 1 to 4, wherein The air intake channel (501a) includes a first channel segment and a second channel segment connected to each other. The first channel segment and the second channel segment have an angle greater than 90°. The port of the first channel segment away from the second channel segment is the air intake (501a1), and the port of the second channel segment away from the first channel segment is the air outlet (501a2). The housing (501) includes a first housing segment (5013) corresponding to the first channel segment and a second housing segment (5014) corresponding to the second channel segment. The air inlet (5011c) is disposed on the wall of the second housing segment (5014) or on the wall of the first housing segment (5013) near the end of the second housing segment (5014).

7. The air intake structure of claim 6, wherein The width of the first housing segment (5013) is greater than the width of the second housing segment (5014), and the air inlet opening (5011c) is provided in the first housing segment (5013).

8. The air intake structure of claim 6, wherein The first housing segment (5013) has an annular groove (5011a), and the air intake structure (50) further includes a sealing ring, a portion of which is embedded in the annular groove (5011a). The sealing ring is used for sealing connection with the front end module (30) of the vehicle.

9. The air intake structure according to any one of claims 1 to 4, characterized by, The air intake structure (50) also includes a connecting component (505), which is integrally disposed with the housing (501) or separately connected to the housing (501). The connecting component (505) is used to connect with the front-end module (30) of the vehicle.

10. The air intake structure of claim 9, wherein A connecting component (505) is provided at each end of the width direction of the housing (501). Each connecting component (505) includes a first connecting segment and a second connecting segment. The first connecting segment extends away from the housing (501) and upward in the width direction of the housing (501). The second connecting segment extends forward. The air inlet (501a1) is located in front of the air outlet (501a2).

11. The air intake structure of claim 10, wherein The connecting component (505) includes a channel plate structure, one section of which is the first connecting section and the other section is the second connecting section; at least one of the inner and outer sides of the bottom wall of the channel plate structure is provided with reinforcing ribs.

12. The air intake structure according to any one of claims 1 to 4, characterized by The housing (501) includes a first housing part (5011) and a second housing part (5012), wherein the first housing part (5011) and the second housing part (5012) are separately disposed and fixedly connected; The top of the first housing portion (5011) has a partial mounting opening, and the second housing portion (5012) covers the mounting opening.

13. The air intake structure according to any one of claims 1 to 4, wherein The passage switching component (504) includes a flap, which is rotatably connected to the housing (501); The air intake structure (50) includes a drive component (502) for driving the flap to flip, and the drive component (502) is directly or indirectly installed on the housing (501).

14. An engine air induction system characterized by, The engine intake system includes an intake passage, the intake passage including an intake structure (50) as described in any one of claims 1-13, and the intake opening (5011c) communicating with the engine compartment. The air intake passage also includes a main air intake passage structure (0a), which includes an active air intake grille (10) located on the lower side of the front of the vehicle, a wind deflector (40), and a cooling module (70) for cooling the engine; the air intake port (501a1) of the air intake structure (50) is connected to the main air intake passage structure (0a).

15. Vehicle, characterized in that Includes the engine intake system as described in claim 14 or the intake structure as described in any one of claims 1-13.

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