Vehicle air-conditioning air duct, vehicle air-conditioning system and vehicle

Abstract

The utility model discloses a vehicle air conditioner air duct, a vehicle air conditioner system and a vehicle. According to the vehicle air conditioner air duct, the vehicle air conditioner air duct comprises an air conditioner defrosting air opening, a first air path, a second air path and a first draught fan, the air conditioner defrosting air opening is formed in the bottom of a front windshield of a vehicle, the first air path is arranged along the front windshield, and the first air path is connected with the air conditioner defrosting air opening; the second air path is arranged along the top of the vehicle and connected to the end, away from the air conditioner defrosting air opening, of the first air path, and the first fan is arranged between the first air path and the second air path. Therefore, no matter which mode the air conditioner is in, the defrosting air port of the air conditioner is kept to have a certain air volume, so that an air wall is formed on the front windshield and the roof. The air wall not only can cool or heat the front windshield and the sky screen or the skylight, but also can isolate heat or cold transferred from the outside through the glass, reduces the frosting probability, can improve the comfort of an air conditioner in a vehicle, and reduces the energy consumption.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more specifically, to a vehicle air-conditioning duct, a vehicle air-conditioning system and a vehicle. Background Art

[0002] At present, glass has been widely used in vehicles, such as panoramic sunroofs, skylights and front windshields, but due to the light transmittance and heat transfer characteristics of glass, the heat transfer between the outside and the inside of the vehicle increases, which makes the comfort of air conditioning in the vehicle very challenging. In related technologies, the vehicle's air conditioning system often defrosts the frosted windshield, but cannot cover the panoramic sunroof or skylight, causing frost on the glass above the passenger compartment, and it is difficult to actively remove the frost, affecting the comfort of the vehicle. Utility Model Content

[0003] Embodiments of the present application provide a vehicle air-conditioning duct, a vehicle air-conditioning system, and a vehicle.

[0004] The vehicle air-conditioning duct of the embodiment of the present application includes an air-conditioning defrost outlet, a first air path, a second air path and a first fan, the air-conditioning defrost outlet is arranged at the bottom of the front windshield of the vehicle, the first air path is arranged along the front windshield, the first air path is connected to the air-conditioning defrost outlet, the second air path is arranged along the top of the vehicle, the second air path is connected to an end of the first air path away from the air-conditioning defrost outlet, and the first fan is arranged between the first air path and the second air path.

[0005] In the vehicle air conditioning duct of the embodiment of the present application, the vehicle air conditioning duct includes an air conditioning defrost vent, a first air path, a second air path and a first fan, the air conditioning defrost vent is arranged at the bottom of the front windshield of the vehicle, the first air path is arranged along the front windshield, the first air path is connected to the air conditioning defrost vent, the second air path is arranged along the top of the vehicle, the second air path is connected to an end of the first air path away from the air conditioning defrost vent, and the first fan is arranged between the first air path and the second air path. In this way, when the air conditioning of the vehicle is turned on, the air conditioning defrost vent can increase the air volume, so that the air blown out of the air conditioning defrost vent flows along the first air path and the second air path, and the first fan can guide the air flow from the front windshield to the roof position to form an air wall between the front windshield and the roof. In this way, the air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolates the heat or coldness transmitted from the outside through the glass, which can improve the air conditioning comfort in the car and reduce energy consumption.

[0006] In certain embodiments, the vehicle air conditioning duct further includes a second fan, and the second fan is disposed at an end of the second air passage away from the first fan.

[0007] In this way, the first fan and the second fan can be arranged at the front end and the rear end of the second air path respectively. The first fan and the second fan can cooperate to make the airflow move along the front windshield and the roof to form an air wall that isolates heat or cold, thereby improving the air conditioning comfort in the car and reducing energy consumption.

[0008] In some embodiments, the air outlet directions of the second fan and the first fan are consistent with the extension direction of the second air path.

[0009] In this way, the air outlet directions of the first fan and the second fan are consistent with the extension direction of the second air duct, so that the airflow of the second air duct can move along the roof.

[0010] In some embodiments, the vehicle air conditioning duct also includes an exhaust port and a third air path, the third air path is arranged on a side of the second fan away from the second air path, the exhaust port is arranged at an end of the third air path away from the second fan, and the exhaust port connects the passenger compartment of the vehicle and the outside of the vehicle.

[0011] In this way, the second fan can guide the airflow to be discharged from the third air path and discharged to the outside of the vehicle through the exhaust port, so that the airflow in the air duct flows stably.

[0012] In certain embodiments, the vehicle air conditioning air duct further includes a skylight, the second air path is arranged along the skylight, and the first fan and the second fan are respectively disposed at the front end and the rear end of the skylight.

[0013] In this way, the second air duct can be used to form an air wall at the lower end of the sunroof, thereby insulating the inner surface of the sunroof glass, reducing the amount of outside heat entering the car, and preventing the heat in the car from being transferred to the outside.

[0014] In certain embodiments, the vehicle air conditioning duct further includes a first guide plate and a second guide plate, wherein the first guide plate is disposed at a lower end of the first fan, and the second guide plate is disposed at a lower end of the second fan.

[0015] In this way, the first guide plate and the second guide plate can cooperate with the first fan and the second fan to guide the airflow to move close to the front windshield and the roof, thereby forming an air wall on the front windshield and the roof. The air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolate the heat or cold from the outside through the glass.

[0016] In some embodiments, the front end of the first guide plate is bent downward to expand the inlet of the second air path, and the rear end of the first guide plate is bent upward to shrink the outlet of the second air path.

[0017] In this way, the first guide plate is bent downward at the front end and bent upward at the rear end to guide the airflow entering the second air path to flow close to the roof. In this way, the air wall can prevent frost on the skylight or prevent heat in the car from flowing out through the skylight.

[0018] In certain embodiments, an air outlet angle of the air conditioner defrost vent is consistent with a layout angle of the front windshield.

[0019] In this way, the air flowing out of the air conditioner defrost outlet can move along the layout direction of the front windshield to ensure that an air wall is formed at the position of the front windshield. In this way, the air wall can prevent frost on the front windshield or the air wall uses the cold or hot air of the air conditioner to cool or heat the glass, and isolate the heat or cold from the outside through the glass.

[0020] The vehicle air conditioning system of the embodiment of the present application includes the vehicle air conditioning duct described in any one of the above embodiments.

[0021] The vehicle according to the embodiment of the present application includes the vehicle air conditioning system described in the above embodiment.

[0022] In the vehicle air conditioning duct, vehicle air conditioning system and vehicle of the embodiment of the present application, the vehicle air conditioning duct includes an air conditioning defrost vent, a first air path, a second air path and a first fan, the air conditioning defrost vent is arranged at the bottom of the front windshield of the vehicle, the first air path is arranged along the front windshield, the first air path is connected to the air conditioning defrost vent, the second air path is arranged along the top of the vehicle, the second air path is connected to an end of the first air path away from the air conditioning defrost vent, and the first fan is arranged between the first air path and the second air path. In this way, when the air conditioning of the vehicle is turned on, the air conditioning defrost vent can increase the air volume, so that the air blown out of the air conditioning defrost vent flows along the first air path and the second air path, and the first fan can guide the air flow from the front windshield to the roof position to form an air wall between the front windshield and the roof. In this way, the air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolates the heat or coldness transmitted from the outside through the glass, which can improve the air conditioning comfort in the vehicle and reduce energy consumption.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a schematic structural diagram of a vehicle air conditioning duct according to an embodiment of the present application;

[0026] Figure 2It is a schematic diagram of the structure of a vehicle according to an embodiment of the present application.

[0027] Description of main component symbols:

[0028] Vehicle air conditioning duct 100;

[0029] Air conditioning defrost vent 10 , first air duct 20 , first fan 30 , second air duct 40 , third air duct 41 , second fan 50 , exhaust vent 60 , front windshield 70 , roof 80 , sunroof 81 , first guide plate 90 , second guide plate 91 , vehicle air conditioning system 200 , vehicle 300 . DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and examples of materials provided in the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] See also Figure 1 and Figure 2The vehicle air conditioning duct 100 of the embodiment of the present application includes an air conditioning defrost outlet 10, a first air path 20, a second air path 40 and a first fan 30. The air conditioning defrost outlet 10 is arranged at the bottom of the front windshield 70 of the vehicle 300, the first air path 20 is arranged along the front windshield 70, the first air path 20 is connected to the air conditioning defrost outlet 10, the second air path 40 is arranged along the top of the vehicle 300, the second air path 40 is connected to one end of the first air path 20 away from the air conditioning defrost outlet 10, and the first fan 30 is arranged between the first air path 20 and the second air path 40.

[0034] In the vehicle air conditioning duct 100 of the embodiment of the present application, the vehicle air conditioning duct 100 includes an air conditioning defrost vent 10, a first air passage 20, a second air passage 40 and a first fan 30. The air conditioning defrost vent 10 is arranged at the bottom of the front windshield 70 of the vehicle 300, the first air passage 20 is arranged along the front windshield 70, the first air passage 20 is connected to the air conditioning defrost vent 10, the second air passage 40 is arranged along the top of the vehicle 300, the second air passage 40 is connected to one end of the first air passage 20 away from the air conditioning defrost vent 10, and the first fan 30 is arranged between the first air passage 20 and the second air passage 40. In this way, when the air conditioning of the vehicle 300 is turned on, the air conditioning defrost vent 10 can increase the air volume, so that the air blown out of the air conditioning defrost vent 10 flows along the first air passage 20 and the second air passage 40, and the first fan 30 can guide the airflow from the front windshield 70 to the position of the roof 80 to form an air wall between the front windshield 70 and the roof 80. In this way, the air wall uses the cold or hot air from the air conditioner to cool or heat the glass, and isolates the heat or cold from the outside through the glass, which can improve the air conditioning comfort in the car and reduce energy consumption.

[0035] In the related art, panoramic sunroofs, skylights, windshields and other glasses are widely used in vehicles, and glass has become an issue that affects the efficiency of thermal management in the car. In summer, affected by the sun and outside temperature, the heat radiation from the windshield and panoramic sunroof or skylight can be clearly felt when sitting in the car, especially the skylight, which makes the air conditioning comfort in the car worse. In winter, the windshield and skylight are prone to frost, which affects the driver's field of view and thus causes driving safety problems. When the air conditioner is defrosted quickly, the air volume of the defrost vent increases, and the air conditioning wind can easily blow along the windshield to the driver's head, making the comfort in the car worse. In addition, the air outlet range of the air conditioner defrost vent is difficult to cover the panoramic sunroof or skylight. Once frosted, it is difficult to remove it actively, and the function of the panoramic sunroof or skylight is greatly reduced.

[0036] In the embodiment of the present application, after the air conditioner of the vehicle 300 is turned on, the airflow of the air conditioner defrost vent 10 can flow along the first air path 20 and the second air path 40, and at the same time, the first fan 30 can guide the airflow of the first air path 20 to smoothly transition to the second air path 40, that is, to form an "air wall" on the inner surface of the front windshield 70 and the roof 80. In this way, in summer, the air wall can reduce the glass temperature and reduce the heat outside the car from entering the car through the front windshield 70 and the roof 80. In winter, the air wall can reduce the probability of frost, which can improve the air conditioning comfort in the car and reduce energy consumption.

[0037] Specifically, the air conditioner defrost vent 10 can be a defrost vent of the air conditioner system of the vehicle 300, and the defrost vent can increase the air volume to cooperate with the first fan 30 to keep the airflow in the first air path 20 and the second air path 40. In the embodiment of the present application, no matter in which mode the air conditioner system of the vehicle 300 is in, the air conditioner defrost vent 10 has a large air volume to ensure that the airflow can stably flow in the first air path 20 and the second air path 40.

[0038] Furthermore, in one embodiment, when the temperature of the outside environment is high, the air conditioner defrost vent 10 can blow cold air, and the cold air flow can flow along the first air path 20 and the second air path 40, thereby forming a cold air wall between the front windshield 70 and the roof 80. The cold air wall can form a heat insulation layer between the glass and the passenger compartment, and the heat insulation layer blocks the heat in the environment from entering the passenger compartment, making the passenger compartment cooler. At the same time, the cold air flow can cool the front windshield 70 and the roof 80, thereby reducing the heat source temperature of the vehicle 300 and reducing the heat radiation from the glass.

[0039] In another embodiment, when the temperature outside the vehicle is low, the air conditioning defrost vent 10 can blow hot air, and the hot air flow can flow along the first air path 20 and the second air path 40, thereby forming a hot air wall on the front windshield 70 and the roof 80. The hot air wall can form an insulating layer between the glass and the passenger compartment. The insulating layer prevents the heat in the passenger compartment from flowing out to the environment, thereby keeping the passenger compartment warm and avoiding frost.

[0040] Of course, in another embodiment, when the temperature of the outside environment is low and the front windshield 70 and the skylight or awning are frosted, the frosting will affect the driver's vision, thereby causing driving safety problems. Therefore, the air conditioner defrost vent 10 can further increase the hot air volume, and the hot air flows along the first air path 20 and the second air path 40 to melt and defrost the front windshield 70 and the skylight or awning, thereby avoiding affecting the user's vision and improving driving safety.

[0041] See also Figure 1In some embodiments, the vehicle air conditioning duct 100 further includes a second fan 50 , and the second fan 50 is disposed at an end of the second air passage 40 away from the first fan 30 .

[0042] In this way, the first fan 30 and the second fan 50 can be respectively arranged at the front end and the rear end of the second air duct 40. The first fan 30 and the second fan 50 can cooperate to make the airflow move along the front windshield 70 and the roof 80 to form an air wall that isolates heat or cold, thereby improving the air-conditioning comfort in the vehicle and reducing energy consumption.

[0043] Specifically, when the air conditioner is turned on, while ensuring a comfortable temperature in the vehicle, the air conditioner defrost vent 10 maintains a certain air volume. By providing a first fan 30 and a second fan 50 and other fan devices, the cold air or hot air from the air conditioner defrost vent 10 flows through the front windshield 70 and the panoramic sunroof 81 or the skylight. In this process, the cold air can lower the temperature of the glass and reduce the heat radiation of the glass. The hot air can heat the glass and reduce the probability of frosting on the front windshield 70 or the skylight. An air wall can also be formed on the inner surface of the glass to isolate the heat or cold from the outside through the glass, thereby improving the air conditioning comfort in the vehicle and reducing energy consumption.

[0044] In the implementation manner of the present application, the types and specific numbers of the first fan 30 and the second fan 50 are not limited. For example, the first fan 30 and the second fan 50 can be blowers to meet various needs.

[0045] See also Figure 1 In some embodiments, the air outlet directions of the second fan 50 and the first fan 30 are consistent with the extension direction of the second air path 40 .

[0046] In this way, the air outlet directions of the first fan 30 and the second fan 50 are consistent with the extension direction of the second air duct 40 , so that the airflow of the second air duct 40 can move along the roof 80 .

[0047] See also Figure 1 In some embodiments, the vehicle air conditioning duct 100 further includes an exhaust port 60 and a third air passage 41. The third air passage 41 is disposed on a side of the second fan 50 away from the second air passage 40. The exhaust port 60 is disposed at one end of the third air passage 41 away from the second fan 50. The exhaust port 60 connects the passenger compartment of the vehicle 300 and the outside of the vehicle.

[0048] In this way, the second fan 50 can guide the airflow to be discharged from the third air passage 41 and discharged to the outside of the vehicle through the air outlet 60, so that the airflow in the air duct flows stably.

[0049] Specifically, the exhaust port 60 can be the exhaust port of the whole vehicle located at the taillight position of the trunk of the vehicle 300, and the third air path 41 is respectively arranged along the inner surface of the trunk of the vehicle 300, so that the airflow can flow along the first air path 20, the second air path 40 and the third air path 41 in sequence until it is discharged outside the vehicle through the exhaust port 60, thereby ensuring the stable flow of the airflow in the air duct.

[0050] Of course, in other embodiments, the exhaust port 60 does not need to be provided, and the airflow can flow freely in the rear part of the vehicle 300 after flowing out of the second air passage 40 and the second fan 50 .

[0051] See also Figure 1 In some embodiments, the vehicle air conditioning duct 100 further includes a skylight 81 , the second air path 40 is arranged along the skylight 81 , and the first fan 30 and the second fan 50 are respectively disposed at the front end and the rear end of the skylight 81 .

[0052] In this way, the second air duct 40 can be used to form an air wall at the lower end of the skylight 81, thereby insulating the inner surface of the skylight 81 glass, reducing the outside heat entering the vehicle, and preventing the heat in the vehicle from being transferred to the outside.

[0053] Specifically, the first fan 30 is arranged at the ceiling position between the front windshield 70 and the panoramic sunroof 81 or the skylight, that is, the position above the driver and the co-driver, and the second fan 50 is arranged at the ceiling position at the rear edge of the panoramic sunroof or the skylight. When the air conditioner is turned on, the air volume of the air conditioner defrost vent 10 is increased on the basis of the original air conditioner mode, for example, the air conditioner mode is adjusted from the face blowing mode to the face blowing defrost mode, the air conditioner mode is adjusted from the foot blowing mode to the foot blowing defrost mode, and the like. The cold air or hot air coming out of the air conditioner defrost vent 10 is made to flow through the inner surface of the front windshield 70 and the panoramic sunroof 81 or the skylight through the above-added fan device such as the blower, and finally flows into the rear of the vehicle compartment or is discharged through the exhaust vent 60 of the whole vehicle.

[0054] See also Figure 1 In some embodiments, the vehicle air conditioning duct 100 further includes a first guide plate 90 and a second guide plate 91 , wherein the first guide plate 90 is disposed at the lower end of the first fan 30 , and the second guide plate 91 is disposed at the lower end of the second fan 50 .

[0055] In this way, the first guide plate 90 and the second guide plate 91 can cooperate with the first fan 30 and the second fan 50 to guide the airflow to move close to the front windshield 70 and the roof 80, and then an air wall can be formed on the front windshield 70 and the roof 80. The air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolate the heat or cold from the outside through the glass.

[0056] See also Figure 1In some embodiments, the front end of the first guide plate 90 is bent downward to expand the inlet of the second air path 40, and the rear end of the first guide plate 90 is bent upward to shrink the outlet of the second air path 40.

[0057] In this way, the first guide plate 90 is bent downward at the front end and bent upward at the rear end to guide the airflow entering the second air duct 40 to flow close to the roof 80. In this way, the air wall can prevent frost from forming on the skylight 81 or prevent heat in the car from flowing out through the skylight 81.

[0058] Specifically, the front end of the first guide plate 90 is bent downward to expand the inlet of the second air path 40, and the rear end of the first guide plate 90 is bent upward to shrink the outlet of the second air path 40, so that the airflow of the first air path 20 can pass through the first guide plate 90 to more easily enter the second air path 40. In some embodiments, the front end of the second guide plate 91 is bent downward to expand the outlet of the second air path 40 to ensure that the airflow in the second air path 40 flows stably along the roof 80.

[0059] See also Figure 1 In some embodiments, the air outlet angle of the air conditioner defrost vent 10 is consistent with the arrangement angle of the front windshield 70 .

[0060] In this way, the air flowing out of the air conditioner defrost outlet 10 can move along the arrangement direction of the front windshield 70, ensuring that an air wall is formed at the position of the front windshield 70. In this way, the air wall can prevent frost on the front windshield 70, or the air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolate the heat or cold from the outside through the glass.

[0061] See also Figure 2 The vehicle air-conditioning system 200 of the embodiment of the present application includes the vehicle air-conditioning duct 100 of any one of the above-mentioned embodiments.

[0062] See also Figure 2 The vehicle 300 of the embodiment of the present application includes the vehicle air conditioning system 200 of the above-mentioned embodiment.

[0063] In the vehicle air-conditioning duct 100, the vehicle air-conditioning system 200 and the vehicle 300 of the embodiment of the present application, the vehicle air-conditioning duct 100 includes an air-conditioning defrost outlet 10, a first air path 20, a second air path 40 and a first fan 30, the air-conditioning defrost outlet 10 is arranged at the bottom of the front windshield 70 of the vehicle 300, the first air path 20 is arranged along the front windshield 70, the first air path 20 is connected to the air-conditioning defrost outlet 10, the second air path 40 is arranged along the top of the vehicle 300, the second air path 40 is connected to one end of the first air path 20 away from the air-conditioning defrost outlet 10, and the first fan 30 is arranged between the first air path 20 and the second air path 40. In this way, when the air conditioner of the vehicle 300 is turned on, the air conditioner defrost vent 10 can increase the air volume, so that the air blown out of the air conditioner defrost vent 10 flows along the first air path 20 and the second air path 40, and the first fan 30 can guide the air flow from the front windshield 70 to the position of the roof 80 to form an air wall between the front windshield 70 and the roof 80. In this way, the air wall uses the cold air or hot air of the air conditioner to cool or heat the glass, and isolates the heat or coldness transmitted from the outside through the glass, which can improve the air conditioning comfort in the vehicle and reduce energy consumption.

[0064] In the implementation manner of the present application, the specific type of the vehicle 300 is not limited. The vehicle 300 can be an electric vehicle or a hybrid vehicle to meet different needs.

[0065] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle air conditioning duct, characterized in that: include: An air conditioner defrost vent, the air conditioner defrost vent being arranged at the bottom of the front windshield of the vehicle; a first air passage, the first air passage being arranged along the front windshield, the first air passage being connected to the air conditioner defrost air outlet; a second air passage, the second air passage being arranged along the top of the vehicle, the second air passage being connected to an end of the first air passage away from the air conditioner defrost air outlet; A first fan is disposed between the first air passage and the second air passage.

2. The vehicle air conditioning duct according to claim 1, characterized in that: The vehicle air conditioning duct further includes a second fan, which is disposed at an end of the second air passage away from the first fan.

3. The vehicle air conditioning duct according to claim 2, characterized in that: The air outlet directions of the second fan and the first fan are consistent with the extension direction of the second air path.

4. The vehicle air conditioning duct according to claim 3, characterized in that: The vehicle air conditioning duct also includes an exhaust port and a third air path. The third air path is arranged on a side of the second fan away from the second air path. The exhaust port is arranged at an end of the third air path away from the second fan. The exhaust port connects the passenger compartment of the vehicle and the outside of the vehicle.

5. The vehicle air conditioning duct according to claim 2, characterized in that: The vehicle air conditioning air duct also includes a skylight, the second air path is arranged along the skylight, and the first fan and the second fan are respectively arranged at the front end and the rear end of the skylight.

6. The vehicle air conditioning duct according to claim 2, characterized in that: The vehicle air conditioning duct further includes a first guide plate and a second guide plate, wherein the first guide plate is disposed at a lower end of the first fan, and the second guide plate is disposed at a lower end of the second fan.

7. The vehicle air conditioning duct according to claim 6, characterized in that: The front end of the first guide plate is bent downward so that the inlet of the second air path is expanded, and the rear end of the first guide plate is bent upward so that the outlet of the second air path is contracted.

8. The vehicle air conditioning duct according to claim 1, characterized in that: The air outlet angle of the air conditioner defrost air outlet is consistent with the arrangement angle of the front windshield.

9. A vehicle air conditioning system, characterized in that: The vehicle air conditioning duct comprises the vehicle air conditioning duct according to any one of claims 1 to 8.

10. A vehicle, characterized in that: A vehicle air conditioning system comprising the vehicle air conditioning system of claim 9.

Images