Air intake duct assembly and vehicle

Abstract

The utility model discloses an air inlet air duct assembly and vehicle, air inlet air duct assembly includes: air inlet air duct, air inlet air duct has air inlet and connecting mouth, and connecting mouth is communicated with air conditioner box body entrance, the pressure relief air duct is communicated with air inlet air duct, and is equipped with the pressure relief mouth of interval arrangement with connecting mouth, wherein, when the negative pressure is formed at air conditioner box body entrance, the airflow channel of air inlet air duct from air inlet to connecting mouth is conducted, when the negative pressure is not formed at air conditioner box body entrance, the airflow channel of pressure relief air duct from the shunt position to the pressure relief mouth is conducted. The utility model embodiment's air inlet air duct assembly is through setting up air inlet and connecting mouth respectively at the both ends of air inlet air duct, makes external airflow to form the negative pressure from air inlet air duct into air conditioner box when can, the pressure relief air duct is communicated with air inlet air duct, makes external airflow to flow from air inlet air duct to the pressure relief mouth to discharge when can not form the negative pressure at air conditioner box body entrance, can reduce the airflow from air conditioner blowing face outlet blows out.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to an air intake duct assembly and a vehicle. Background Technology

[0002] Due to the windshield tilt angle and hood design, the air pressure is relatively high at the lower part of the windshield, where the air conditioning external circulation intake is located, when the vehicle is traveling at high speed. The airflow overcomes the resistance of the HVAC assembly (Heating, Ventilation and Air Conditioning) and the air duct and vent resistance to enter the vehicle. When the air conditioning is not turned on but the external circulation damper is open, there will be a strong wind blowing on the face from the air vents, resulting in poor vehicle ride comfort and room for improvement. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an air intake duct assembly, which allows external airflow to enter the air conditioning unit when negative pressure is formed at the air conditioning unit inlet, ensuring the reliable operation of the air conditioning system, and allows external airflow to flow to the pressure relief port for discharge when negative pressure is not formed at the air conditioning unit inlet, thereby reducing the amount of airflow blown out from the air conditioning unit outlet and improving the ride comfort of the vehicle.

[0004] An air intake duct assembly according to an embodiment of the present invention includes: an air intake duct having an air inlet connecting to the outside of the vehicle and a connection port facing the air conditioning unit, the connection port being adapted to communicate with the air conditioning unit inlet; and a pressure relief duct communicating with the air intake duct at a branching position, and having a pressure relief port spaced apart from the connection port at one end away from the branching position; wherein, when a negative pressure is formed at the air conditioning unit inlet, the air intake duct is connected through an airflow channel from the air inlet to the connection port, and when no negative pressure is formed at the air conditioning unit inlet, the pressure relief duct is connected through an airflow channel from the branching position to the pressure relief port.

[0005] According to the air intake duct assembly of this utility model embodiment, by setting air inlets and connecting ports at both ends of the air intake duct, external airflow can enter the air conditioning unit through the air intake duct when the air conditioning system is turned on, as negative pressure is formed at the air conditioning unit inlet, thus ensuring the reliable operation of the air conditioning system. Furthermore, by connecting the pressure relief duct to the air intake duct, external airflow can flow from the air intake duct through the pressure relief duct to the pressure relief port for discharge when the air conditioning system is turned off, as negative pressure is not formed at the air conditioning unit inlet. This reduces the amount of airflow blown out from the air conditioning unit outlet and improves the ride comfort of the vehicle.

[0006] According to some embodiments of the present invention, the air inlet duct assembly is provided with a pressure relief valve in the pressure relief duct. The pressure relief valve is configured to open the pressure relief duct when no negative pressure is formed at the air conditioning unit inlet, and close the pressure relief duct when a negative pressure is formed at the air conditioning unit inlet.

[0007] According to some embodiments of the present invention, the air inlet duct assembly includes a pressure relief valve body and a pressure relief valve plate. The pressure relief valve body has an exhaust port, which is used to open the pressure relief duct. The pressure relief valve plate is movably installed on the pressure relief valve body and is used to selectively block the exhaust port.

[0008] According to some embodiments of the present invention, in the air inlet duct assembly, the pressure relief valve plate is rotatably connected to the pressure relief valve body, and the pressure relief valve plate is used to unidirectionally guide the pressure relief duct from one end connected to the air inlet duct to the pressure relief port.

[0009] According to some embodiments of the present invention, the air inlet duct assembly includes multiple pressure relief valve plates, and the multiple pressure relief valve plates are used to jointly open or close the exhaust port.

[0010] According to some embodiments of the present invention, in the air inlet duct assembly, the pressure relief valve body is snapped onto the pressure relief duct; and / or, the pressure relief valve disc is rotatably mounted on the pressure relief valve body, and the rotating shaft of the pressure relief valve disc is snapped onto the pressure relief valve body.

[0011] According to some embodiments of the present invention, the air intake duct assembly further includes a wiper cover plate, one end of the air intake duct being connected to the wiper cover plate, and the air inlet being formed on the wiper cover plate.

[0012] According to some embodiments of the present invention, the air inlet duct assembly has a branch port at the bottom of the air inlet duct located at the branch position, and the air inlet end of the pressure relief duct is connected to the air inlet duct via the branch port.

[0013] According to some embodiments of the present invention, in the air intake duct assembly, the distance between the diversion port and the air conditioning unit inlet is greater than the distance between the diversion port and the pressure relief port.

[0014] This utility model also proposes a vehicle.

[0015] The vehicle according to the present invention includes the air intake duct assembly described in any of the above embodiments.

[0016] The vehicle and the aforementioned air intake duct assembly have the same advantages over the prior art, which will not be elaborated here.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the air intake duct assembly according to an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the air intake duct assembly according to an embodiment of the present utility model. Figure 2 .

[0019] Figure label: Air intake duct assembly 100 Air inlet duct 1, air inlet 11, connection port 12, diversion port 13, diversion position 14. Pressure relief duct 2, pressure relief port 21, pressure relief valve 22, pressure relief valve body 221, pressure relief valve disc 222. 3. Wiper cover. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0023] The following is for reference. Figures 1-2 The air intake duct assembly 100 according to an embodiment of the present utility model allows external airflow to enter the air conditioning unit when a negative pressure is formed at the air conditioning unit inlet, ensuring reliable operation of the air conditioning system. It also allows external airflow to flow to the pressure relief port 21 for discharge when no negative pressure is formed at the air conditioning unit inlet, reducing the amount of airflow blown out from the air conditioning unit outlet and improving the ride comfort of the vehicle.

[0024] like Figures 1-2 As shown, an air inlet duct assembly 100 according to an embodiment of the present invention includes: an air inlet duct 1 and a pressure relief duct 2.

[0025] The air intake duct 1 has an air inlet 11 that connects to the outside of the vehicle and a connection port 12 facing the air conditioning unit. The connection port 12 is adapted to connect to the air conditioning unit inlet. The pressure relief duct 2 is connected to the air intake duct 1 at the splitting position 14, and a pressure relief port 21 is provided at the end away from the splitting position 14, which is spaced apart from the connection port 12. When a negative pressure is formed at the air conditioning unit inlet, the air intake duct 1 is connected through the airflow channel from the air inlet 11 to the connection port 12. When no negative pressure is formed at the air conditioning unit inlet, the pressure relief duct 2 is connected through the airflow channel from the splitting position 14 to the pressure relief port 21.

[0026] Specifically, the air intake duct 1 allows airflow to flow within it and can guide the flow of airflow. The air intake duct 1 is provided with an air inlet 11 and a connecting port 12, so that the two ends of the air intake duct 1 are the air inlet 11 and the connecting port 12, respectively. This allows airflow to flow from the air inlet 11 to the connecting port 12 through the air intake duct 1, and the air inlet 11 is connected to the outside of the vehicle, so that the air intake duct 1 is connected to the external space through the air inlet 11, allowing external airflow to enter the air intake duct 1 from the air inlet 11. The connecting port 12 is set facing the air conditioning unit and is connected to the air conditioning unit inlet, so that the air intake duct 1 is connected to the air conditioning unit through the connecting port 12, allowing the airflow in the air intake duct 1 to enter the air conditioning unit from the connecting port 12 and the air conditioning unit inlet. In this way, an airflow path is formed. When the air conditioning system is turned on, external airflow can flow through the air intake duct 1 to the air conditioning unit, and then be blown out from the air conditioning vents, which can ensure the reliable operation of the air conditioning system and meet the user's air blowing needs.

[0027] Meanwhile, the pressure relief duct 2 allows airflow to flow within it and can guide the airflow. Connecting the pressure relief duct 2 to the air inlet duct 1 at the branching point 14 allows airflow in the air inlet duct 1 to flow from the branching point 14 to the pressure relief duct 2. The pressure relief duct 2 has a pressure relief port 21 for discharging airflow from within it. Positioning the pressure relief port 21 at the end of the pressure relief duct 2 furthest from the branching point 14 effectively separates the pressure relief port 21 from the air inlet 11. The system is configured so that the airflow in the air intake duct 1 can be discharged from the pressure relief port 21 after entering the pressure relief duct 2. This creates another airflow path. When the air conditioning system is off, but the vehicle's external air circulation damper is open, the external airflow can be discharged from the pressure relief port 21 through the air intake duct 1 and the pressure relief duct 2. This reduces the amount of airflow blown out of the air conditioning vents, thus reducing discomfort for users. Especially in winter, it reduces the amount of cold air entering the passenger compartment, improving the vehicle's ride comfort.

[0028] Furthermore, by separating the pressure relief port 21 from the connection port 12, a certain distance can be maintained between the connection port 12 and the pressure relief port 21. This arrangement can prevent airflow from flowing towards the connection port 12 while simultaneously flowing towards the pressure relief port 21, and also prevent airflow from flowing towards the pressure relief port 21 while simultaneously flowing towards the connection port 12. This ensures the reliability of the airflow in the air inlet duct 1 flowing towards the connection port 12 or the pressure relief port 21.

[0029] It should be noted that the pressure relief port 21 can be oriented towards the cabin, so that external airflow can flow from the pressure relief port 21 to the cabin through the air intake duct 1 and the pressure relief duct 2, which can reduce the airflow blowing out from the air conditioning vent.

[0030] Furthermore, when a negative pressure is formed at the air conditioning unit inlet, the air intake duct 1, from the air inlet 11 to the connection port 12, is opened. That is, when the air conditioning system is turned on, the blower starts running, drawing air from the air conditioning unit inlet towards the unit, creating a negative pressure at the inlet. At this time, the air intake duct 11 is opened towards the connection port 12, allowing external airflow to flow through the air intake duct 1 from the connection port 12 to the air conditioning unit inlet, and then into the unit. This ensures reliable operation of the air conditioning system and meets user needs. When no negative pressure is formed at the air conditioning unit inlet... When the air conditioning system is turned off, the air vent 2 is connected to the airflow channel from the diversion position 14 to the pressure relief port 21. That is, when the air conditioning system is turned off, the blower stops running and the blower will not draw airflow from the air conditioning unit inlet toward the air conditioning unit. In other words, negative pressure will not be formed at the air conditioning unit inlet. At this time, the air vent 2 is connected to the airflow channel from the diversion position 14 toward the pressure relief port 21. That is, the air inlet 11 can be connected toward the pressure relief port 21, so that the external airflow can flow through the air inlet vent 1 and the air vent 21 to the pressure relief port 21 and can be discharged from the pressure relief port 21. This can reduce the airflow blown out from the air conditioning unit outlet and improve the vehicle's ride comfort.

[0031] It should be noted that in actual design, the airflow resistance at the pressure relief port 21 can be made less than that at the connection port 12, so that when the air conditioner box inlet does not form a negative pressure, the airflow entering the air intake duct 1 can preferentially flow toward the pressure relief port 21, thereby effectively reducing the airflow blown out from the air conditioner air outlet.

[0032] According to the air intake duct assembly 100 of this utility model embodiment, by setting air inlets 11 and connecting ports 12 at both ends of the air intake duct 1, external airflow can enter the air conditioning unit from the air intake duct 1 when the air conditioning system is turned on, so as to ensure the reliable operation of the air conditioning system. Furthermore, by connecting the pressure relief duct 2 to the air intake duct 1, external airflow can flow from the air intake duct 1 through the pressure relief duct 2 to the pressure relief port 21 for discharge when the air conditioning system is turned off, so as to reduce the airflow blown out from the air conditioning vent and improve the ride comfort of the vehicle.

[0033] In some embodiments, a pressure relief valve 22 is provided in the pressure relief duct 2. The pressure relief valve 22 is configured to open the pressure relief duct 2 when no negative pressure is formed at the air conditioning unit inlet, and to close the pressure relief duct 2 when a negative pressure is formed at the air conditioning unit inlet.

[0034] Specifically, the pressure relief duct 2 is connected to the air intake duct 1 and is used to guide the airflow in the air intake duct 1 to the pressure relief port 21 for discharge when no negative pressure is formed at the air conditioning unit inlet. A pressure relief valve 22 is installed in the pressure relief duct 2. The pressure relief valve 22 is used to open or close the pressure relief duct 2. When the pressure relief valve 22 opens the pressure relief duct 2, the external airflow can be discharged from the pressure relief port 21. When the pressure relief valve 22 closes the pressure relief duct 2, the external airflow cannot be discharged from the pressure relief port 21, but can enter the air conditioning unit from the connection port 12. In this way, by setting the pressure relief valve 22, the air intake port 11 can be selectively connected to the connection port 12 or the pressure relief port 21, thereby ensuring the reliable operation of the air conditioning system when it is turned on, and reducing the airflow blown out of the air conditioning unit outlet when it is turned off.

[0035] It should be noted that, as Figure 2 As shown, the pressure relief valve 22 can be set at the pressure relief port 21, so that the pressure relief valve 22 can selectively open or close the pressure relief air duct 2 from the pressure relief port 21. That is, the pressure relief port 21 can be selectively opened or closed to open or close the pressure relief air duct 2. When the pressure relief air duct 2 is closed, the external airflow cannot be discharged from the pressure relief port 21, and the hot air in the engine compartment cannot enter the air intake duct 1 from the pressure relief port 21. This can also prevent the hot air in the engine compartment from being sucked into the air conditioning unit, further improving the ride comfort of the vehicle.

[0036] The pressure relief valve 22 is configured to open the pressure relief duct 2 when no negative pressure is formed at the air conditioning unit inlet. That is, when the air conditioning system is turned off, no negative pressure is formed at the air conditioning unit inlet, and the pressure relief valve 22 can open the pressure relief duct 2, allowing external airflow to be discharged from the pressure relief port 21, which can reduce the airflow blowing out from the air conditioning unit outlet. The pressure relief valve 22 is also configured to close the pressure relief duct 2 when a negative pressure is formed at the air conditioning unit inlet. That is, when the air conditioning system is turned on, a negative pressure is formed at the air conditioning unit inlet, and the pressure relief valve 22 can close the pressure relief duct 2, preventing external airflow from being discharged from the pressure relief port 21, thus ensuring the reliable operation of the air conditioning system.

[0037] In some embodiments, the pressure relief valve 22 includes a pressure relief valve body 221 and a pressure relief valve plate 222. The pressure relief valve body 221 has an exhaust port for connecting the pressure relief air passage 2. The pressure relief valve plate 222 is movably mounted on the pressure relief valve body 221 and is used to selectively block the exhaust port.

[0038] Specifically, the pressure relief valve 22 is used to selectively open or close the pressure relief port 21. The pressure relief valve 22 includes a pressure relief valve body 221 and a pressure relief valve disc 222. That is, the pressure relief valve 22 can open or close the pressure relief port 21 through the combined action of the pressure relief valve body 221 and the pressure relief valve disc 222. The pressure relief valve body 221 has an exhaust port, which is used to guide the pressure relief air duct 2. The pressure relief valve disc 222 is movably installed on the pressure relief valve body 221, so that the pressure relief valve body 221 can be opened or closed. 1. Connected to the pressure relief valve plate 222, the pressure relief valve 22 can be a single integrated structure, improving the overall structural strength and operational reliability of the pressure relief valve 22. The pressure relief valve plate 222 is movable relative to the pressure relief valve body 221, so that it can selectively block the exhaust port while moving, thus opening or closing the exhaust port. When the pressure relief valve plate 222 opens the exhaust port, the pressure relief air passage 2 can be opened. When the pressure relief valve plate 222 closes the exhaust port, the pressure relief air passage 2 can be closed.

[0039] The pressure relief port 21 can be set directly opposite the exhaust port. When the exhaust port is not blocked, the exhaust port is open, the air inlet 11 can be directed toward the pressure relief port 21, and the external airflow can flow toward the pressure relief port 21 and be discharged from the pressure relief port 21. When the exhaust port is blocked, the exhaust port is closed, and the external airflow cannot be discharged from the pressure relief port 21.

[0040] Therefore, when the pressure relief valve plate 222 moves relative to the pressure relief valve body 221 to open the exhaust port, the pressure relief air duct 2 can be opened. At this time, the air inlet 11 is connected to the pressure relief port 21 through the air inlet air duct 1 and the pressure relief air duct 2, and the external airflow can be discharged from the pressure relief port 21. When the pressure relief valve plate 222 moves relative to the pressure relief valve body 221 to block the exhaust port, the pressure relief air duct 2 can be closed. At this time, the air inlet 11 is connected to the connection port 12 through the air inlet air duct 1, and the external airflow can flow from the air inlet 11 to the air conditioning unit.

[0041] In some embodiments, the pressure relief valve plate 222 is rotatably connected to the pressure relief valve body 221, and the pressure relief valve plate 222 is used to unidirectionally guide the pressure relief air duct 2 from one end connected to the air inlet air duct 1 to the pressure relief port 21.

[0042] Specifically, the pressure relief valve plate 222 is movable relative to the pressure relief valve body 221 to selectively block the exhaust port. The pressure relief valve plate 222 is rotatably connected to the pressure relief valve body 221, such as through a rotating shaft, so that the pressure relief valve plate 222 can rotate relative to the pressure relief valve body 221 to selectively block the exhaust port by rotation. The pressure relief valve plate 222 is used to unidirectionally guide the end connected to the pressure relief air duct 2 to the pressure relief port 21, so that the pressure relief air duct 2 is guided towards the pressure relief port 21, but the pressure relief port 21 cannot be guided towards the pressure relief air duct 2. In this way, the air inlet 11 can be selectively connected to the connection port 12 or to the pressure relief port 21.

[0043] In some embodiments, there are multiple pressure relief valve discs 222, and the multiple pressure relief valve discs 222 are used to open or close the exhaust port together.

[0044] Specifically, the pressure relief valve plate 222 is used to selectively open or close the exhaust port. Multiple pressure relief valve plates 222 can be configured, that is, the number of pressure relief valve plates 222 can be two, three or more. In this way, multiple pressure relief valve plates 222 can be used together to selectively block the exhaust port, which can improve the reliability of blocking the exhaust port.

[0045] Multiple pressure relief valve discs 222 can be sequentially spliced ​​together to open or close the vent hole together, or multiple pressure relief valve discs 222 can be sequentially stacked to open or close the vent hole together. Moreover, the coverage area of ​​multiple pressure relief valve discs 222 can be larger than the area of ​​the vent hole to ensure that the vent hole can be reliably closed.

[0046] In some embodiments, the pressure relief valve body 221 is snapped onto the pressure relief duct 2; and / or, the pressure relief valve disc 222 is rotatably mounted on the pressure relief valve body 221, and the rotating shaft of the pressure relief valve disc 222 is snapped onto the pressure relief valve body 221.

[0047] Specifically, the pressure relief valve plate 222 is connected to the pressure relief valve body 221, making the pressure relief valve 22 a single integrated structure. Installing the pressure relief valve body 221 onto the pressure relief duct 2 connects the pressure relief valve 22 to the pressure relief duct 2, enabling the installation and fixation of the pressure relief valve 22 and ensuring its reliable operation. The pressure relief valve body 221 and the pressure relief duct 2 can be snap-fitted together. This can be achieved by forming a groove on the pressure relief valve body 221 and a buckle on the pressure relief duct 2, or by setting a buckle on the pressure relief valve body 221 and forming a groove on the pressure relief duct 2. This snap-fit ​​connection method requires no auxiliary tools, facilitating the connection or separation of the pressure relief valve body 221 and the pressure relief duct 2, thereby simplifying the installation and disassembly of the pressure relief valve 22 and significantly reducing operation time.

[0048] Meanwhile, the pressure relief valve disc 222 is rotatably mounted on the pressure relief valve body 221, thus connecting the pressure relief valve disc 222 to the pressure relief valve body 221. This allows for the installation of the pressure relief valve disc 222, ensuring its reliable operation. The pressure relief valve disc 222 can rotate relative to the pressure relief valve body 221, allowing it to either move closer to the vent hole to block it or move away from it to open it. Furthermore, the pressure relief valve disc 222 has a rotating shaft for pressure relief. The valve disc 222 is connected to the pressure relief valve body 221 via a rotating shaft, allowing the valve disc 222 to rotate relative to the pressure relief valve body 221. The rotating shaft of the pressure relief valve disc 222 is snapped into the pressure relief valve body 221. A slot is provided on the pressure relief valve body 221 to snap the rotating shaft into the slot, thereby fixing the rotating shaft and ensuring the reliability of the rotation of the pressure relief valve disc 222 relative to the pressure relief valve body 221. The snap-fit ​​connection method does not require auxiliary tools, making it easy to install and remove the rotating shaft, which can significantly shorten the operation time.

[0049] It should be noted that the rotating shaft can be fixedly connected to the pressure relief valve plate 222, or the rotating shaft and the pressure relief valve plate 222 can be directly constructed as one piece, further improving the reliability of the rotation of the pressure relief valve plate 222 relative to the pressure relief valve body 221.

[0050] In some embodiments, the air intake duct assembly 100 further includes a wiper cover 3, one end of the air intake duct 1 is connected to the wiper cover 3, and an air inlet 11 is formed on the wiper cover 3.

[0051] Specifically, such as Figures 1-2 As shown, the air intake duct assembly 100 also includes a wiper cover plate 3, which is installed below the windshield of the car to protect the wiper system. One end of the air intake duct 1 is connected to the wiper cover plate 3, which can be connected by bolts or other connecting parts to realize the installation and fixation of the air intake duct 1 and ensure reliable airflow. The other end of the air intake duct 1 can be connected to the air conditioning unit to further install and fix the air intake duct 1, improving the reliability of its installation and fixation. Moreover, this arrangement allows the air intake duct 1 to be fixed at both ends, which can improve the stability of its installation and fixation.

[0052] Furthermore, the air inlet 11 is formed on the wiper cover 3, so that the air inlet 11 is set facing the outside of the vehicle, which facilitates the entry of external airflow into the air intake duct 1, and then flows from the air intake duct 1 to the connection port 12 or to the pressure relief port 21, so as to ensure the reliable operation of the air conditioning system when the air conditioning system is turned on, and reduce the airflow from the air conditioning vent when the air conditioning system is turned off, thereby improving the ride comfort of the vehicle.

[0053] In some embodiments, the bottom of the air inlet duct 1 is provided with a diversion port 13 located at the diversion position 14, and the air inlet end of the pressure relief duct 2 is connected to the air inlet duct 1 via the diversion port 13.

[0054] Specifically, the airflow entering the air intake duct 1 from the air inlet 11 can selectively flow to the connection port 12 or the pressure relief port 21. When the airflow flows to the connection port 12, it can enter the air conditioning unit, ensuring the reliable operation of the air conditioning system. When the airflow flows to the pressure relief port 21, it can be discharged from the pressure relief port 21, reducing the amount of airflow blown out of the air conditioning vents and improving the vehicle's ride comfort. Figure 2 As shown, a diversion port 13 located at the diversion position 14 can be provided at the bottom of the air inlet duct 1. The diversion port 13 is used to allow airflow to flow selectively at this location. The pressure relief duct 2 is connected to the air inlet duct 1, so that when the air conditioning system is turned off, the external airflow can flow from the air inlet duct 1 to the pressure relief port 21. That is, the air inlet end of the pressure relief duct 2 is the end connected to the air inlet duct 1. By connecting the air inlet end of the pressure relief duct 2 to the air inlet duct 1 through the diversion port 13, the pressure relief duct 2 can be connected to the diversion port 13, so that the airflow entering the air inlet duct 1 from the air inlet 11 can selectively flow towards the connection port 12 or towards the pressure relief port 21 at the diversion port 13.

[0055] In some embodiments, the distance between the diversion port 13 and the air conditioning unit inlet is greater than the distance between the diversion port 13 and the pressure relief port 21.

[0056] Specifically, when the external airflow reaches the diversion port 13, it can selectively flow towards the connection port 12 or towards the pressure relief port 21. This allows the distance between the diversion port 13 and the air conditioning unit inlet to be greater than the distance between the diversion port 13 and the pressure relief port 21, and vice versa. This arrangement ensures that the distance between the diversion port 13 and the pressure relief port 21 is closer, while the distance between the diversion port 13 and the connection port 12 is farther. With this configuration, when the external airflow enters the air intake duct 1 and reaches the diversion port 13, the airflow can preferentially flow towards the pressure relief port 21. Thus, when the air conditioning system is turned off, the airflow entering the air intake duct 1 from the air intake port 11 can preferentially flow towards the pressure relief port 21, effectively reducing the amount of airflow blown out of the air conditioning unit outlet and effectively improving the vehicle's ride comfort.

[0057] This utility model also proposes a vehicle.

[0058] The vehicle according to the present invention includes an air intake duct assembly 100 of any of the above embodiments. By providing an air inlet 11 and a connecting port 12 at both ends of the air intake duct 1, external airflow can enter the air conditioning unit from the air intake duct 1 when the air conditioning system is turned on, as negative pressure is formed at the air conditioning unit inlet, thus ensuring the reliable operation of the air conditioning system. Furthermore, by connecting the pressure relief duct 2 to the air intake duct 1, external airflow can flow from the air intake duct 1 through the pressure relief duct 2 to the pressure relief port 21 for discharge when the air conditioning system is turned off, as negative pressure is not formed at the air conditioning unit inlet. This reduces the amount of airflow blown out from the air conditioning unit outlet and improves the vehicle's ride comfort.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air intake duct assembly, characterized in that, include: An air intake duct has an air inlet connecting to the outside of the vehicle and a connection port facing the air conditioning unit, the connection port being adapted to connect to the air conditioning unit inlet; The pressure relief duct is connected to the air inlet duct at the branching point, and a pressure relief port is provided at the end away from the branching point, which is spaced apart from the connection port. Specifically, when negative pressure is formed at the inlet of the air conditioning unit, the air intake duct is opened from the air inlet to the connection port; when negative pressure is not formed at the inlet of the air conditioning unit, the pressure relief duct is opened from the diversion position to the pressure relief port.

2. The air intake duct assembly according to claim 1, characterized in that, The pressure relief duct is equipped with a pressure relief valve, which is configured to open the pressure relief duct when no negative pressure is formed at the inlet of the air conditioning unit, and close the pressure relief duct when a negative pressure is formed at the inlet of the air conditioning unit.

3. The air intake duct assembly according to claim 2, characterized in that, The pressure relief valve includes a pressure relief valve body and a pressure relief valve plate. The pressure relief valve body has an exhaust port for opening the pressure relief air duct. The pressure relief valve plate is movably installed on the pressure relief valve body and is used to selectively block the exhaust port.

4. The air intake duct assembly according to claim 3, characterized in that, The pressure relief valve disc is rotatably connected to the pressure relief valve body, and the pressure relief valve disc is used to unidirectionally guide the pressure relief air duct from one end connected to the air inlet duct to the pressure relief port.

5. The air intake duct assembly according to claim 3, characterized in that, The pressure relief valve has multiple valve plates, and the multiple pressure relief valve plates are used to open or close the exhaust port together.

6. The air intake duct assembly according to claim 3, characterized in that, The pressure relief valve body is snapped into the pressure relief duct. And / or, the pressure relief valve disc is rotatably mounted on the pressure relief valve body, and the rotating shaft of the pressure relief valve disc is engaged with the pressure relief valve body.

7. The air intake duct assembly according to claim 1, characterized in that, It also includes a wiper cover, one end of which is connected to the air intake duct, and the air intake is formed in the wiper cover.

8. The air intake duct assembly according to claim 1, characterized in that, The bottom of the air inlet duct is provided with a diversion port located at the diversion position, and the air inlet end of the pressure relief duct is connected to the air inlet duct through the diversion port.

9. The air intake duct assembly according to claim 8, characterized in that, The distance between the diversion port and the air conditioning unit inlet is greater than the distance between the diversion port and the pressure relief port.

10. A vehicle, characterized in that, The air intake duct assembly includes any one of claims 1-9.

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