Vehicle air duct system and vehicle

Abstract

The vehicle air duct system comprises a main air duct and a plurality of sub air duct sets, one end of the main air duct is used for being connected with a vehicle air conditioning system, the other end of the main air duct is blocked, the main air duct is provided with a plurality of air outlet sets at intervals in the axial direction of the main air duct, and each air outlet set comprises at least one air outlet; the main air duct is provided with a plurality of air outlet groups, the plurality of sub-air duct groups are in one-to-one correspondence with the plurality of air outlet groups, each sub-air duct group comprises at least one sub-air duct and an air door assembly, the sub-air ducts are communicated with the air outlets, the air door assemblies are arranged on the main air duct and correspond to the air outlets, and the air door assemblies are used for controlling opening and closing of the air outlets. The functions of face blowing, foot blowing and defrosting can be achieved through the main air duct and the multiple sub air ducts, the internal space of the instrument assembly can be saved, the ventilation area can be fully utilized, and ventilation or closing or air volume adjustment of part of the air outlets can be achieved through the air door assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a vehicle air duct system and a vehicle. Background Art

[0002] The design of modern cars strives to be compact, and the car's display system, ventilation system and control system are all concentrated on the dashboard.

[0003] Patent CN220500446U discloses an instrument panel air duct structure, which includes: a first defrost air duct and a face-blowing air duct; a first side defrost air duct and a second side defrost air duct, wherein the first side defrost air duct and the second side defrost air duct are snap-connected and distributed on both sides of the first defrost air duct; a first defrost air duct sponge is also provided on the first defrost air duct, and the first defrost air duct sponge is used to seal the first defrost air duct and the instrument panel; an installation component is used to install the air duct assembly consisting of the first defrost air duct, the face-blowing air duct, the first side defrost air duct and the second side defrost air duct on the instrument panel.

[0004] The above-mentioned prior art connects the first defrost air duct and the face-blowing air duct from the air-conditioning port respectively, and guides the air of the air-conditioning system to the face-blowing and defrosting positions. However, multiple air ducts are arranged inside the instrument panel to guide the air, resulting in low space utilization when the space inside the instrument panel is tight. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to propose a vehicle air duct system and a vehicle to solve the technical problem in the prior art that multiple air ducts are set inside the dashboard to guide the air, resulting in low space utilization when the space inside the dashboard is tight.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a vehicle air duct system, comprising: A main air duct, one end of which is used to connect to the vehicle air conditioning system and the other end is blocked, the main air duct is provided with a plurality of air outlet groups at intervals along its axial direction, and the air outlet group includes at least one air outlet; and A plurality of sub-air duct groups correspond one-to-one to the plurality of air outlet groups, the sub-air duct groups include at least one sub-air duct and a damper assembly, the sub-air ducts are connected to the air outlets, the damper assembly is arranged in the main air duct and corresponds to the air outlets, and the damper assembly is used to control the opening and closing of the air outlets.

[0007] In some embodiments, the damper assembly includes a first damper, a second damper and a driving mechanism, the first damper is connected to the main air duct, the air outlet is arranged in the first damper, the second damper is adapted to the first damper, the second damper is slidably installed in the first damper and corresponds to the air outlet setting so that the air outlet can be blocked or opened by the second damper, and the driving mechanism is connected to the second damper to drive the second damper to slide.

[0008] In some embodiments, when there are multiple air outlets, the multiple air outlets are arranged at circumferential intervals along the main air duct, and the second damper includes multiple shielding parts, and the multiple shielding parts are arranged at axial intervals, and the multiple shielding parts can shield the multiple air outlets.

[0009] In some embodiments, the driving mechanism includes a gear, a gear ring and a driving motor. The gear is rotatably installed on the outer periphery of the first damper, the gear ring is sleeved on the outer periphery of the second damper, the gear ring is connected to the second damper, the gear is meshed with the gear ring, and the main shaft of the driving motor is connected to the gear.

[0010] In some embodiments, two sliding grooves are provided on the inner side of the first air door, the second air door is slidably installed in the sliding grooves, and the second air door is sealed and matched with the side walls of the sliding grooves.

[0011] In some embodiments, the main air duct includes a plurality of connecting sections connected in sequence, each of the connecting sections is provided with at least one air outlet group, and the plurality of connecting sections are detachably connected.

[0012] In some embodiments, a grille member is provided at the end of the connecting section.

[0013] In some embodiments, a seal is provided between two adjacent connecting sections.

[0014] In some embodiments, the main air duct and the sub-air duct are detachably connected.

[0015] In addition, the present invention also provides a vehicle, which includes an instrument assembly and the vehicle air duct system, wherein the main air duct is arranged in the instrument assembly, and the other end of the sub-air duct extends to the surface of the instrument assembly.

[0016] Compared with the prior art, the vehicle air duct system provided by the present invention has a main air duct arranged in an instrument assembly, and a plurality of air outlet groups are arranged on the main air duct, and at least one of a face-blowing air outlet, a foot-blowing air outlet and a defrost air outlet can be arranged in each of the air outlet groups, and then the sub-air duct is connected to the air outlet to guide the wind to the desired position, that is, there is only one main air duct guiding the air from the air-conditioning outlet, and then the main air duct is guided to a plurality of defrost sub-air ducts, a plurality of face-blowing sub-air ducts and a plurality of foot-blowing sub-air ducts according to needs, the sub-air duct controls the air outlet mode through the damper assembly, and the length of the sub-air duct is much smaller than the length of the main air duct, and the face-blowing, foot-blowing and defrosting functions can be realized by using one main air duct and a plurality of sub-air ducts, which can save the internal space of the instrument assembly, make full use of the ventilation area, and also realize partial ventilation or closing or adjusting the air volume of some air outlets through the damper assembly.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows with reference to the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a vehicle air duct system provided by the present invention; Figure 2 yes Figure 1 A three-dimensional schematic diagram of the middle wind door assembly; Figure 3 yes Figure 2 a left side cutaway view of the center stroke door assembly; Figure 4 yes Figure 2 A partial cross-sectional view of the first damper and the second damper; Figure 5 yes Figure 1 A partial cross-sectional view of two adjacent connecting sections; Figure 6 yes Figure 1 A three-dimensional schematic diagram of a middle grille member; Figure 7 yes Figure 1 A partial cross-sectional view of the middle installation portion and the sub-air duct; Figure 8 It is a structural schematic diagram of an embodiment of a vehicle provided by the present invention; Fig. 9 yes Figure 8 A three-dimensional schematic diagram of the functional modules; Fig.10 yes Figure 8 A partial schematic diagram of the two beams.

[0019] Description of reference numerals: 1-main air duct, 11-connecting section, 12-installing part, 121-slot, 2-sub-air duct, 21-protrusion, 3-damper assembly, 31-first damper, 311-slide slot, 32-second damper, 33-driving mechanism, 331-gear, 332-gear ring, 333-driving motor, 4-grille, 5-seal, 6-body, 7-instrument assembly, 71-functional module, 711-housing, 712-crossbeam, 713-mounting plate, 714-positioning hole, 715-connecting plate, 716-positioning pin. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In order to solve the technical problem of low space utilization when the space inside the dashboard is tight in the prior art because multiple air ducts are arranged inside the dashboard to guide the air, the present invention provides a vehicle air duct system, which can realize the functions of face blowing, foot blowing and defrosting by utilizing one main air duct and a plurality of sub-air ducts, thereby saving the internal space of the instrument assembly, making full use of the ventilation area, and also realizing partial ventilation or closing of the air outlet or adjusting the air volume through the damper assembly.

[0022] The present invention provides a vehicle air duct system, comprising a main air duct 1 and multiple sub-air duct 2 groups, one end of the main air duct 1 is used to connect to the vehicle air-conditioning system, and the other end of the main air duct 1 is blocked, and the main air duct 1 is provided with multiple air outlet groups along its axial direction, and the air outlet group includes at least one air outlet; multiple sub-air duct 2 groups correspond one-to-one to multiple air outlet groups, and the sub-air duct 2 group includes at least one sub-air duct 2 and a damper assembly 3, the sub-air duct 2 is connected to the air outlet, and the damper assembly 3 is arranged on the main air duct 1 and corresponds to the air outlet, and the damper assembly 3 is used to control the opening and closing of the air outlet.

[0023] In this embodiment, the main air duct 1 is arranged in the instrument assembly 7, and a plurality of air outlet groups are arranged on the main air duct 1, and at least one of a face-blowing air outlet, a foot-blowing air outlet and a defrost air outlet can be arranged in each of the air outlet groups, and then connected to the air outlet through the sub-air duct 2 to guide the wind to the desired position, that is, there is only one main air duct 1 to guide the air from the air-conditioning outlet, and then the main air duct 1 is guided to a plurality of defrost sub-air ducts 2, a plurality of face-blowing sub-air ducts 2 and a plurality of foot-blowing sub-air ducts 2 as needed, the sub-air duct 2 controls the air outlet mode through the damper assembly 3, and the length of the sub-air duct 2 is much smaller than the length of the main air duct 1, and the face-blowing, foot-blowing and defrosting functions can be realized by using one main air duct 1 and a plurality of sub-air ducts 2, which can save the internal space of the instrument assembly 7, make full use of the ventilation area, and also realize partial ventilation or closing or adjusting the air volume through the damper assembly 3.

[0024] In this embodiment, the number of the air outlets in each of the air outlet groups is consistent with the number of the sub-air ducts 2 in the sub-air duct 2 group, that is, each of the air outlets is connected to a sub-air duct 2 to guide the wind to the corresponding position through the sub-air duct 2, and the number of the damper assemblies 3 is not limited, and one damper assembly 3 can control the opening and closing of one air outlet, or one damper assembly 3 can control the opening and closing of two adjacent air outlets, which can be set according to actual conditions.

[0025] In this embodiment, the sub-air duct 2 can be one of a defrost sub-air duct 2, a face-blowing sub-air duct 2 and a foot-blowing sub-air duct 2. The other end of the defrost sub-air duct 2 is arranged corresponding to the windshield, and is used to guide the wind to the windshield for defrosting the windshield. The other end of the face-blowing sub-air duct 2 corresponds to the driving seat or the co-pilot seat, and is directed toward the face of the driver and passenger, and is used to blow the wind to the face of the driver and passenger. The other end of the foot-blowing sub-air duct 2 corresponds to the driving seat or the co-pilot seat, and is extended downwardly, toward the feet of the driver and passenger, and is used to blow the wind to the feet of the driver and passenger.

[0026] In some embodiments, see Figure 2 and Figure 3 The damper assembly 3 includes a first damper 31, a second damper 32 and a driving mechanism 33. The first damper 31 is connected to the main air duct 1, and the air outlet is arranged in the first damper 31. The second damper 32 is adapted to the first damper 31. The second damper 32 is slidably installed in the first damper 31 and is arranged corresponding to the air outlet so that the air outlet can be blocked or opened by the second damper 32. The driving mechanism 33 is connected to the second damper 32 to drive the second damper 32 to slide.

[0027] In this embodiment, the main air duct 1 is composed of multiple sections of pipes, the first damper 31 is located between two adjacent pipes and connects the two pipes, the first damper 31 is adapted to the pipes, both of which are cylindrical pipes, the air outlet is arranged on the first damper 31, the shielding portion of the second damper 32 is arranged in an arc shape to adapt to the first damper 31, the second damper 32 is slidably installed in the first damper 31, and the driving mechanism 33 drives the second damper 32 to rotate around the central axis of the first damper 31, when the second damper 32 moves away from the air outlet, the shielding portion of the second damper 32 does not shield the air outlet, and the air outlet is in a fully open state at this time, when the second damper 32 moves toward the air outlet and partially shields the air outlet, the air volume of the air outlet is reduced at this time, and when the second damper 32 completely shields the air outlet, the air outlet is in a closed state at this time, and the opening and closing of the air outlet and the adjustment of the air volume can be achieved by driving the second damper 32 to move.

[0028] In some embodiments, when there are multiple air outlets, the multiple air outlets are arranged at circumferential intervals along the main air duct 1, and the second damper 32 includes multiple shielding parts, and the multiple shielding parts are arranged at axial intervals, and the multiple shielding parts can shield the multiple air outlets.

[0029] In this embodiment, generally, the air outlet group is provided with two air outlets or three air outlets. When there are two air outlets, they are used for defrosting and blowing the face, respectively. At this time, the shielding parts are provided with at least two, and the shielding parts are rotated to realize functions such as fully opening the two air outlets, partially opening the two air outlets, fully closing the two air outlets and opening a single air outlet. When there are three air outlets, they are used for defrosting, blowing the face and blowing the feet. The shielding parts are provided with at least three, and the shielding parts are rotated to realize functions such as fully opening the three air outlets, partially opening the two air outlets, fully closing the two air outlets, opening a single air outlet and opening two of the air outlets.

[0030] In some embodiments, see Figure 2 and Figure 3 The driving mechanism 33 includes a gear 331, a ring gear 332 and a driving motor 333. The gear 331 is rotatably mounted on the outer periphery of the first damper 31, the ring gear 332 is sleeved on the outer periphery of the second damper 32, the ring gear 332 is connected to the second damper 32, the gear 331 is meshed with the ring gear 332, and the main shaft of the driving motor 333 is connected to the gear 331.

[0031] In the present embodiment, the first damper 31 includes two mounting sections, the second damper 32 is tubular as a whole, the outer diameter of the second damper 32 is the same as the inner diameter of the first damper 31, the shielding portion is located in the middle of the second damper 32, that is, the middle part of the second damper 32 is hollowed out, the two mounting sections are sleeved at both ends of the second damper 32 and sealed with the second damper 32, the other ends of the two mounting sections are connected to the pipe, the ring gear 332 is located between the two mounting sections, a flat plate is provided on the outer periphery of one of the mounting sections, the drive motor 333 is mounted on the flat plate, the gear 331 is mounted on the main shaft of the drive motor 333, and the gear 331 is meshed with the ring gear 332, so that the drive motor 333 drives the gear 331 to mesh with the ring gear 332, thereby driving the second damper 32 to move.

[0032] In this embodiment, the air outlet group is provided on at least one of the mounting sections, that is, when one damper assembly 3 controls the opening and closing of one air outlet, one of the two mounting sections is provided with the air outlet group, and when one damper assembly 3 controls the opening and closing of two adjacent air outlets, the air outlet group is provided on both of the two mounting sections, and the number and setting positions of the air outlets in the air outlet groups on the two mounting sections are the same.

[0033] In some embodiments, see Figure 4 Two slide grooves 311 are provided on the inner side of the first damper 31 , and the second damper 32 is slidably installed in the slide grooves 311 , and the second damper 32 is sealed and matched with the side wall of the slide groove 311 .

[0034] In this embodiment, the slide groove 311 is arranged in a ring shape, and its groove is arranged toward the second damper 32. The two slide grooves 311 are arranged at intervals along the axial direction of the first damper 31. The second damper 32 is located between the two slide grooves 311. Both ends of the second damper 32 are located in the slide groove 311, so that the second damper 32 is limited by the slide groove 311, and the second damper 32 is sealed with the side wall of the slide groove 311 to ensure the sealing between the first damper 31 and the second damper 32.

[0035] Specifically, in this embodiment, sealing protrusions are provided on the inner and outer sides of both ends of the second damper 32 , and the sealing protrusions abut against the opposite side walls of the sliding groove 311 , thereby activating the sealing effect.

[0036] In some embodiments, see Figure 5The main air duct 1 includes a plurality of connecting sections 11 connected in sequence, each of the connecting sections 11 is provided with at least one air outlet group, and the plurality of connecting sections 11 are detachably connected.

[0037] In this embodiment, since the instrument assembly 7 is formed by splicing multiple functional modules 71, the vehicle air duct system is located in the instrument assembly 7. In order to ensure that the air duct system of the present application is compatible with the modular instrument assembly 7, the main air duct 1 includes multiple connecting sections 11 connected in sequence, and the multiple connecting sections 11 correspond one-to-one to the multiple functional modules 71, and each of the connecting sections 11 is provided with at least one air outlet group, that is, each of the functional modules 71 is provided with one connecting section 11, at least one air outlet and at least one sub-air duct 2 group, thereby forming an independent air duct system, which can be connected to the air-conditioning system for use alone, or multiple are connected in series for use, so as to achieve the purpose of adapting to the functional module 71 and facilitate configuration according to customer needs.

[0038] In this embodiment, the connecting section 11 is located in the shell 711 of the functional module 71, and both ends of the connecting section 11 are connected to the opposite side end plates of the shell 711. When the two functional modules 71 are spliced, the two connecting sections 11 are correspondingly connected.

[0039] In some embodiments, see Figure 5 and Figure 6 A grille member 4 is provided at the end of the connecting section 11 .

[0040] In this embodiment, when the functional module 71 is used alone, one end of the connecting section 11 is connected to the air-conditioning system, and the other end of the connecting section 11 is in an open state. In order to prevent foreign objects from entering the connecting section 11, a grille 4 is further provided at the end of the connecting section 11. The grille 4 can effectively prevent foreign objects from entering the connecting section 11.

[0041] In some embodiments, see Figure 5 A sealing member 5 is provided between two adjacent connecting sections 11 .

[0042] In this embodiment, when a plurality of the connecting sections 11 are spliced ​​together for use, a sealing ring is further provided at the grille member 4 to avoid air leakage at the joints. When two of the connecting sections 11 are spliced ​​together, the sealing ring abuts against the two adjacent grille members 4, thereby achieving the purpose of sealing and preventing air leakage caused by uneven gaps during the docking process.

[0043] In some embodiments, see Figure 7 , the main air duct 1 and the sub-air duct 2 are detachably connected.

[0044] In the present embodiment, in order to facilitate the processing and production of the main air duct 1 and the sub-air duct 2, the main air duct 1 and the sub-air duct 2 are produced separately and then assembled in a detachable connection manner. The main air duct 1 is convexly provided with a mounting portion 12 on the peripheral side, and the mounting portion 12 is provided with a mounting channel connecting to the internal space of the main air duct 1. The side wall of the mounting channel is provided with a slot 121, and the mounting channel is adapted to the sub-air duct 2. The outer periphery of the sub-air duct 2 is provided with a protrusion 21, and the protrusion 21 is adapted to the slot 121. The sub-air duct 2 is inserted into the mounting channel, and the protrusion 21 is snap-fitted with the slot 121 to fix the sub-air duct 2.

[0045] In addition, the present invention also provides a vehicle, see Figures 8 to 10 The vehicle includes an instrument assembly 7 and the vehicle air duct system, the main air duct 1 is arranged in the instrument assembly 7, and the other end of the sub-air duct 2 extends to the surface of the instrument assembly 7.

[0046] Specifically, the vehicle also includes a body 6, and the instrument assembly 7 includes a plurality of functional modules 71, and the plurality of functional modules 71 are arranged in sequence along the width direction of the body 6, each of the functional modules 71 is detachably connected to the body 6, and two adjacent functional modules 71 are detachably connected, and each functional module 71 is used to independently realize different functions, and the main air duct 1 includes a plurality of connecting sections 11, and the plurality of connecting sections 11 correspond one-to-one to the plurality of functional modules 71, and each of the connecting sections 11 is arranged in the corresponding three or four functional modules 71, and when the plurality of functional modules 71 are connected, the plurality of connecting sections 11 are connected and conducted in sequence.

[0047] For further information, see Fig. 9 and Fig.10 , the front side and left and right sides of the vehicle body 6 are provided with brackets; the functional module 71 includes a shell 711 and a crossbeam 712, the crossbeam 712 is arranged on the shell 711, the front side of the shell 711 is threadedly connected to the bracket on the front side of the vehicle body 6, and the two ends of the crossbeam 712 are threadedly connected to the brackets on the left and right sides of the vehicle body 6 or the crossbeam 712 of the adjacent functional module 71, wherein the connecting section 11 is arranged in the shell 711, and the two ends of the connecting section 11 extend to the left and right sides of the shell 711, and the other end of the sub-air duct 2 extends to the shell 711 to form an air outlet.

[0048] Specifically, see Fig.10In order to improve the installation accuracy of the plurality of functional modules 71 and ensure the docking accuracy of the two connecting sections 11, one side of one of the two adjacent functional modules 71 is provided with a positioning portion, and one side of the other functional module 71 is provided with a matching portion, and the positioning portion and the matching portion are positioned and matched to position the two functional modules 71, that is, the left and right sides of each functional module 71 are respectively provided with a positioning portion and a matching portion. During specific assembly, the positioning portions and the matching portions of the two functional modules 71 are positioned and matched to ensure that the two functional modules 71 are installed in place. Specifically, the positioning portion is a positioning pin 716, and the matching portion is a positioning hole 714. The positioning pin 716 is matched with the positioning hole 714. The installation accuracy of the functional module 71 is ensured by the positioning matching of the positioning pin 716 and the positioning hole 714. The positioning pin 716 and the positioning hole 714 can be set on the side of the shell 711 or on the beam 712, and there is no limitation here.

[0049] Specifically, the functional module 71 includes a mounting plate 713 and a connecting plate 715. The mounting plate 713 is installed at one end of the beam 712. The positioning hole 714 is provided on the mounting plate 713. The mounting plate 713 is also provided with a notch connected to the positioning hole 714. The notch is gradually inclined upward from front to back. The connecting plate 715 is installed at the other end of the beam 712. The positioning pin 716 is provided on the connecting plate 715.

[0050] In order to better understand the present invention, the following Figures 1 to 10 The technical solution of the present invention is described in detail: The instrument assembly 7 includes three functional modules 71, namely a driving module, a control module and an equipment module. Accordingly, the connecting section 11 is provided with three, namely a first connecting section 11, a second connecting section 11 and a third connecting section 11. The first connecting section 11 is located in the driving module, the second connecting section 11 is located in the control module, and the third connecting section 11 is located in the equipment module, wherein one end of the first connecting section 11 is connected to the air-conditioning system, and the air outlet groups are provided with four, and the four air outlet groups are respectively the first air outlet group, the second air outlet group, the third air outlet group and the fourth air outlet group along the wind flow direction, the first air outlet group is located in the first connecting section, the second air outlet group and the third air outlet group are located in the second connecting section 11, and the fourth air outlet group is located in the third connecting section 11, the first air outlet group is provided with three air outlets, respectively for defrosting, blowing on the face and blowing on the feet, the second air outlet group and the third air outlet group are each provided with two air outlets, respectively for defrosting frost and blowing on the face, and the second air outlet group and the third air outlet group are controlled by the same damper assembly 3, the fourth air outlet group is provided with three air outlets, which are respectively used for defrosting, blowing on the face and blowing on the feet. In the damper assembly 3 for controlling the first air outlet group and the fourth air outlet group, there are at least three shielding parts, and the functions of fully opening the three air outlets, partially opening the two air outlets, fully closing the two air outlets, opening a single air outlet, and opening two of the air outlets can be achieved by rotating the shielding parts. In the damper assembly 3 for controlling the second air outlet group and the third air outlet group, there are at least two shielding parts, and the functions of fully opening the two air outlets, partially opening the two air outlets, fully closing the two air outlets, and opening a single air outlet can be achieved by rotating the shielding parts. In this way, the functions of blowing on the face, blowing on the feet and defrosting can be realized, the internal space of the instrument assembly 7 can be saved, the ventilation area can be fully utilized, and partial air outlet ventilation or closing or the air volume can be adjusted through the damper assembly 3.

[0051] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle air duct system, characterized in that: It includes: A main air duct, one end of which is used to connect to the vehicle air conditioning system and the other end is blocked, and the main air duct is provided with a plurality of air outlet groups at intervals along its axial direction, and the air outlet group includes at least one air outlet; and A plurality of sub-air duct groups correspond one-to-one to the plurality of air outlet groups, the sub-air duct groups include at least one sub-air duct and a damper assembly, the sub-air ducts are connected to the air outlets, the damper assembly is arranged in the main air duct and corresponds to the air outlets, and the damper assembly is used to control the opening and closing of the air outlets.

2. The vehicle air duct system according to claim 1, characterized in that: The damper assembly includes a first damper, a second damper and a driving mechanism, the first damper is connected to the main air duct, the air outlet is arranged in the first damper, the second damper is adapted to the first damper, the second damper is slidably installed in the first damper and corresponds to the air outlet so that the air outlet can be blocked or opened by the second damper, and the driving mechanism is connected to the second damper to drive the second damper to slide.

3. The vehicle air duct system according to claim 2, characterized in that: When there are multiple air outlets, the multiple air outlets are arranged at intervals along the circumference of the main air duct, and the second damper includes multiple shielding parts, and the multiple shielding parts are arranged at intervals along the axial direction, and the multiple shielding parts can shield the multiple air outlets.

4. The vehicle air duct system according to claim 2, characterized in that: The driving mechanism includes a gear, a gear ring and a driving motor. The gear is rotatably installed on the outer periphery of the first damper, the gear ring is sleeved on the outer periphery of the second damper, the gear ring is connected to the second damper, the gear is meshed with the gear ring, and the main shaft of the driving motor is connected to the gear.

5. The vehicle air duct system according to claim 2, characterized in that: Two sliding grooves are arranged inside the first air door, and the second air door is slidably installed in the sliding grooves, and the second air door is sealed and matched with the side walls of the sliding grooves.

6. The vehicle air duct system according to claim 1, characterized in that: The main air duct includes a plurality of connecting sections connected in sequence, each of the connecting sections is provided with at least one air outlet group, and the plurality of connecting sections are detachably connected.

7. The vehicle air duct system according to claim 6, characterized in that: The end of the connecting section is provided with a grid member.

8. The vehicle air duct system according to claim 6, characterized in that: A sealing member is provided between two adjacent connecting sections.

9. The vehicle air duct system according to claim 1, characterized in that: The main air duct and the sub-air duct are detachably connected.

10. A vehicle, characterized in that: The vehicle comprises an instrument assembly and a vehicle air duct system as claimed in any one of claims 1 to 9, wherein the main air duct is arranged in the instrument assembly, and the other end of the sub-air duct extends to the surface of the instrument assembly.

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