Air blowing system and automobile

By combining the installation of tracks and sliding tables in the vehicle interior, and using the mobile drive mechanism to drive the blower body, the problem of insufficient airflow coverage in the hand area of the steering wheel in the prior art is solved, and precise airflow coverage and comfort improvement under low air volume and low noise are achieved.

CN120269992APending Publication Date: 2025-07-08江苏开沃汽车有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510621799.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

The blowing air vent design of the existing vehicle interior cannot achieve precise airflow coverage of the steering wheel hand area under low air volume and low noise, resulting in poor comfort in extreme environments, and the existing electric adjustment method fails to effectively solve the dynamic distance matching problem between the air outlet and the hand area.

Method used

By installing tracks and sliding tables on the dashboard skeleton, combined with a moving drive mechanism, the blower body is driven close to or away from the steering wheel, precise airflow coverage of the steering wheel hand area is achieved, and the motor and rack structures are used for control, and the flexibility is improved in combination with manual and electric drive methods.

Benefits of technology

Accurate airflow coverage of the steering wheel hand area under low air volume and low noise, improve initial comfort, and reduce the use of interior space when the temperature is appropriate, and improve the thermal comfort of the cockpit.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120269992A_ABST
    Figure CN120269992A_ABST
Patent Text Reader

Abstract

The invention discloses an air blowing system and an automobile, and belongs to the technical field of vehicle interior design, the air blowing system comprises an air blowing opening body, a rail, a sliding table and a moving driving mechanism, and the air inlet end of the air blowing opening body is used for being connected to an air pipe through a hose; the track is used for being fixedly installed on an instrument board framework. The sliding table comprises a connecting part and a sliding part which are connected with each other, the connecting part is connected to the blow-off nozzle body, and the sliding part is connected to the rail in a sliding mode; the movable end of the movable driving mechanism is connected to the air blowing opening body, and the fixed end of the movable driving mechanism is used for being fixedly installed on the instrument panel framework. By driving the air blowing nozzle body, the air blowing nozzle body can move in the direction close to the steering wheel, then airflow covering is conducted on the hand area of the steering wheel, and the hand comfort is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of vehicle interior design, and in particular to a blowing system and a car. Background Art

[0002] At present, the air outlets on both sides of the main driver's seat of commercially available models generally adopt a fixed design, with the air outlet body rigidly integrated into the instrument panel assembly, and the wind direction is manually adjusted through a mechanical lever. This structure has the following technical defects:

[0003] (1) Limited by the instrument panel shape and the spatial layout of the steering wheel, the airflow path is immutable. Especially in extreme ambient temperatures (low temperatures in winter or high temperatures in summer), the initial airflow is difficult to effectively cover the hand contact area;

[0004] (2) The existing adjustment method relies on manual lever operation. Although some models use electrically driven air outlet blades, none of them solves the problem of dynamic distance matching between the air outlet and the hand area, causing the driver and passengers to have to compensate for the heat exchange efficiency by increasing the air volume. This not only leads to an increase in energy consumption of the air conditioning system, but also generates significant aerodynamic noise due to the increase in air flow velocity.

[0005] Therefore, how to achieve precise airflow coverage of the steering wheel hand area while maintaining low air volume and low noise has become a technical problem that needs to be solved urgently to improve the thermal comfort of the cockpit. Summary of the invention

[0006] The object of the present invention is to provide a blowing system and a car to solve the problems existing in the above-mentioned prior art. By driving the blowing port body, it can be moved closer to the steering wheel, thereby covering the hand area of ​​the steering wheel with airflow to improve hand comfort.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a blowing system, comprising an air outlet body, a track, a slide and a mobile driving mechanism, wherein the air inlet end of the air outlet body is used to be connected to an air duct through a hose; the track is used to be fixedly installed on an instrument panel frame; the slide comprises a connecting part and a sliding part that are connected to each other, the connecting part is connected to the air outlet body, and the sliding part is slidably connected to the track; the movable end of the mobile driving mechanism is connected to the air outlet body, and the fixed end of the mobile driving mechanism is used to be fixedly installed on the instrument panel frame.

[0009] In one embodiment, two slides are provided, and two tracks are correspondingly provided. The connecting portion and the sliding portion are combined into an L-shaped structure. The connecting portion is connected to the bottom wall of the air outlet body, and the sliding portions of the two slides extend in directions away from each other.

[0010] In one embodiment, the cross-section of the track is a U-shaped structure, the openings of the two U-shaped structures are arranged opposite to each other, the sliding part is embedded inside the U-shaped structure, a limiting structure is provided at the end of the track, and the limiting structure is used to define the maximum displacement of the sliding part.

[0011] In one embodiment, it further includes a fixing bracket, the fixing bracket is used to be installed on the instrument panel skeleton, the track is installed on the fixing bracket, and the fixed end of the moving driving mechanism is installed on the fixing bracket.

[0012] In one embodiment, the moving driving mechanism includes a rack and a gear, the rack is connected to the air outlet body, the extending direction of the rack is parallel to the extending direction of the track, the gear is connected to the motor, the rack is meshed with the gear, and the motor is connected to the fixing bracket.

[0013] In one embodiment, the moving driving mechanism further includes a pull rod, the length direction of the pull rod is perpendicular to the extending direction of the rack, the pull rod is slidably connected to the fixing bracket, the motor is connected to one end of the pull rod, the other end of the pull rod is for hand-holding, and the pull rod can drive the motor to move so as to drive the gear to disengage from the rack.

[0014] In one embodiment, the moving driving mechanism further includes a fixing seat and a slide rail, the fixing seat is slidably connected to the slide rail, the extending direction of the slide rail is parallel to the length direction of the pull rod, and the motor is connected to the pull rod through the fixing seat.

[0015] In one embodiment, it further includes a boss, the boss is connected to the air outlet body, and the boss is used to manually pull the air outlet body.

[0016] In one embodiment, it further includes a fan, the fan is installed on the fixing bracket, the fan is located in the gap between the air outlet body and the fixing bracket, and the fan is used to purge the space within the moving range of the air outlet body.

[0017] The present invention provides an automobile, which includes an instrument panel skeleton and a blowing system as described above. The air inlet end of the air outlet body is connected to an air duct through a hose, the track is fixedly installed on the instrument panel skeleton, and the fixed end of the moving driving mechanism is fixedly installed on the instrument panel skeleton.

[0018] The present invention has achieved the following technical effects compared with the prior art:

[0019] The present invention uses a mobile driving mechanism to drive the movement of the air outlet body. With the cooperation of the track and the sliding table, the air outlet body can move in a set direction and path, enabling the air outlet body to move closer to or away from the steering wheel. Thus, at the initial stage of getting into the car, the air outlet body can be moved closer to the steering wheel to cover the hand area of the steering wheel with air flow, improving hand comfort. After the temperature inside the car is appropriate, the air outlet body is moved away from the steering wheel and reset to reduce the occupation of the interior space of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Front side angle schematic diagram of the air outlet body in the non-extended state in the embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the connection between the air outlet body and the hose in the embodiment of the present invention;

[0023] Figure 3 Overall schematic diagram of the blowing system in the embodiment of the present invention;

[0024] Figure 4 Partial structure schematic diagram of the blowing system in the embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the meshing state of the gear and the rack in the embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the disengaged state of the gear and the rack in the embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the track in the embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the motor in the embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the fixing bracket in the embodiment of the present invention;

[0030] Figure 10 Schematic diagram of the hose in the embodiment of the present invention;

[0031] Figure 11 Schematic diagram of the air duct in the embodiment of the present invention;

[0032] Figure 12Schematic diagram of the slide rail in the embodiment of the present invention;

[0033] Figure 13 Schematic diagram of the fan in the embodiment of the present invention;

[0034] Figure 14 Schematic diagram of the pull rod in the embodiment of the present invention;

[0035] Figure 15 Schematic diagram of the rear side angle of the air outlet body in the non-extended state in the embodiment of the present invention;

[0036] Figure 16 is Figure 15 Cross-sectional view taken along line A-A in

[0037] Figure 17 is Figure 15 Cross-sectional view taken along line B-B in

[0038] Figure 18 Schematic diagram of the front side angle of the air outlet body in the extended state in the embodiment of the present invention;

[0039] Figure 19 Schematic diagram of the rear side angle of the air outlet body in the extended state in the embodiment of the present invention;

[0040] Figure 20 is Figure 19 Cross-sectional view taken along line C-C in

[0041] Figure 21 is Figure 19 Cross-sectional view taken along line D-D in

[0042] Among them, 1, air duct; 2, hose; 3, air outlet body; 4, rack; 5, gear; 6, motor; 7, first wire harness; 8, fixed seat; 9, fixed bracket; 10, track; 11, sliding table; 12, first switch; 13, fan; 14, second switch; 15, boss; 16, slide rail; 17, pull rod; 18, second wire harness; 19, steering wheel. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] The purpose of the present invention is to provide a blowing system and an automobile to solve the problems existing in the prior art. By driving the air outlet body, it can be moved in the direction close to the steering wheel, thereby covering the airflow in the hand area of the steering wheel and improving the hand comfort.

[0045] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] As Figures 1 to 21 shown, the present invention provides a blowing system, including a blowing port body 3, a track 10, a sliding table 11, and a moving driving mechanism. Among them, the blowing port body 3 can adopt the blowing port body 3 currently used in automobiles, or can be improved to a certain extent. The blowing port body 3 has a certain length and cross-sectional area. The two ends in the length direction are respectively an air inlet end and an air outlet end. The cross-sectional shape can be various shapes such as circular and rectangular. After extension, it should be able to maintain a relatively fixed position and a relatively stable blowing direction. The air inlet end of the blowing port body 3 is used to be connected to the air duct 1 through a hose 2. The hose 2 can adopt a corrugated pipe or other flexible pipes to always maintain the connection between the blowing port body 3 and the air duct 1 after the blowing port body 3 moves. The air outlet end of the blowing port body 3 is used to face the direction of the steering wheel 19 so as to be able to blow air to the steering wheel 19 or the hand holding the steering wheel 19. The track 10 is used to be fixedly installed on the instrument panel skeleton. The instrument panel skeleton is the basic framework for installing the automobile instrument panel and can install and fix the instrument panel and the blowing system. The sliding table 11 includes a connecting portion and a sliding portion connected to each other. The connecting portion can be connected to the blowing port body 3 by conventional means such as screws and welding. The sliding portion is slidably connected to the track 10, and the cross-sectional shapes of the sliding portion and the track 10 match each other so as to be able to slide stably in the track 10. The movable end of the moving driving mechanism is connected to the blowing port body 3, and the fixed end of the moving driving mechanism is used to be fixedly installed on the instrument panel skeleton. Thus, supported by the instrument panel skeleton, the moving driving mechanism can drive the blowing port body 3 to move, and with the cooperation of the sliding table 11 and the track 10, it has a limited moving track. The moving driving mechanism can adopt known existing structures such as a lead screw nut structure, an electric telescopic cylinder structure, and a belt structure, as long as it can achieve stable driving.

[0047] The present invention uses the moving driving mechanism to drive the blowing port body 3 to move. With the cooperation of the track 10 and the sliding table 11, the blowing port body 3 moves according to the set direction and path, and can move the blowing port body 3 closer to or farther away from the steering wheel 19. Thus, at the initial stage of getting into the car, the blowing port body 3 can be moved closer to the steering wheel 19 to cover the hand area of the steering wheel 19 with air flow and improve the hand comfort. After the temperature in the car is suitable, the blowing port body 3 is moved away from the steering wheel 19 and reset to reduce the occupation of the interior space of the car.

[0048] In an embodiment, as Figure 3 and Figure 4As shown, two slides 11 are provided, and two tracks 10 are provided correspondingly, that is, one slide 11 is provided correspondingly with one track 10, and the two tracks 10 may not be connected to each other, or may be installed on the same basic structure. The connecting portion and the sliding portion are combined into an L-shaped structure, that is, the slide 11 is an L-shaped structure, the connecting portion is connected to the bottom wall of the air outlet body 3, and the sliding portions of the two slides 11 extend in directions away from each other. The slide 11 with an L-shaped structure allows the connecting portion and the sliding portion to face different directions, thereby providing space for the arrangement of components such as a mobile drive mechanism. At the same time, extending the sliding portion in a direction away from each other increases the distance between the two tracks 10, and can provide a more stable sliding support for the slide 11, thereby ensuring the movement stability of the air outlet body 3.

[0049] In one embodiment, if Figures 3 to 7 As shown, the cross section of the track 10 is a U-shaped structure, and the two tracks 10 have two U-shaped structures. The openings of the two U-shaped structures are arranged oppositely, and the sliding part extending outward can be embedded in the U-shaped structure, forming a U-shaped structure that clamps the L-shaped structure inside the two U-shaped structures. In this way, the L-shaped structure can be prevented from deviating in a direction perpendicular to the track 10, so that the L-shaped structure can only move along the track 10, effectively restricting the movement of the air outlet body 3. A limiting structure can also be provided at the end of the track 10. The limiting structure can limit the maximum displacement of the sliding part, that is, it can limit the maximum extension position and the maximum recovery position of the air outlet body 3. In addition, the limiting structure can also be linked with the mobile drive mechanism. When the sliding part touches the limiting structure, it can provide a signal to the mobile drive mechanism to change the movement direction of the air outlet body 3.

[0050] In one embodiment, if Figures 3 to 6 , Figure 9 As shown, it also includes a fixing frame 9, which is used to be installed on the dashboard frame as a mounting support for the air outlet body 3 and its auxiliary structures. The track 10 is installed on the fixing frame 9, and the fixed end of the mobile drive mechanism is installed on the fixing frame 9.

[0051] The fixing frame 9 can be in the form of a plate structure, a frame structure, etc. In this example, the fixing frame 9 forms a U-shaped groove, and the track 10 can be installed on the inner side of the U-shaped groove and located on the vertical arm of the U-shaped groove. The installation position of the track 10 can be limited by the U-shaped groove, making the installation more convenient and quick.

[0052] In one embodiment, if Figures 3 to 6 , Figure 8As shown, the mobile drive mechanism includes a rack 4 and a gear 5. The rack 4 is connected to the air outlet body 3, and the extending direction of the rack 4 is parallel to the extending direction of the track 10. When the rack 4 moves along its extending direction, it can drive the air outlet body 3 to move in the same direction. The gear 5 is connected to the motor 6, and the motor 6 can drive the gear 5 to rotate. Moreover, the motor 6 can be connected with a first switch 12, and the first switch 12 extends to a position that can be manually touched through a first wire harness 7. The start and stop of the motor 6 can be controlled through the first switch 12. For example, the first switch 12 is a toggle switch, with the middle position being stop, one direction controlling extension, and the other direction controlling retraction. Or, the first switch 12 is a push switch, one press controlling start, and another press controlling stop. The first switch 12 is linked with the limit structure, that is, after the motor 6 starts, if the stop is not pressed, the motor 6 rotates until it hits the limit structure and then starts to rotate in the reverse direction. The rack 4 is meshed and connected with the gear 5, and the motor 6 is connected to the fixed frame 9. Through the forward and reverse rotation of the motor 6, the movement of the rack 4 in two opposite directions is controlled, thereby realizing the control of the movement of the air outlet body 3. The movement drive of the rack 4 combined with the limit sliding of the slide table 11 and the track 10 can realize the high-efficiency and high-stability movement control of the air outlet body 3. Moreover, the tracks 10 are distributed on both sides of the fixed frame 9, reserving space for the installation of the rack 4 and the gear 5, facilitating the layout and utilization of the space, and at the same time, avoiding the interference of other components outside the blowing system.

[0053] After installing the blowing system in the vehicle, when first entering the vehicle, press the first switch 12 or use large screen touch or voice control to input a signal. After the motor 6 receives the signal, it starts to rotate. The rotation of the gear 5 drives the rack 4 to move forward, driving the air outlet body 3 to move along the track 10, thereby shortening the distance between the air outlet of the original air outlet body 3 and the steering wheel 19 from La to Lb, enabling the hand to feel the blowing in the first time and improving the comfort in the initial stage of getting into the vehicle (as Figures 18 to 21 shown). After the hand is comfortable and the temperature in the vehicle rises, then use the first switch 12 or large screen touch or voice control to reverse the movement of the motor 6 to restore to the state where the air outlet body 3 does not extend (as Figure 1 、 Figures 15 to 21 shown).

[0054] In one embodiment, as Figures 3 to 6 、 Figure 12 and Figure 14As shown, the mobile drive mechanism further includes a pull rod 17. The length direction of the pull rod 17 is perpendicular to the extension direction of the rack 4. The pull rod 17 is slidably connected to the fixed frame 9. In this example, through holes are provided on the vertical arms of the U-shaped groove in the fixed frame 9. The pull rod 17 passes through the through holes and is slidably connected to the through holes. Of course, the pull rod 17 may not be slidably connected to the through holes, but only passes through the through holes. In this case, other sliding structures should be provided to limit the moving direction. The motor 6 (referring to the housing or fixed end of the motor 6) is connected to one end of the pull rod 17, and the other end of the pull rod 17 is for holding by hand. A handle or protrusion may be provided at the other end of the pull rod 17 for easy gripping. When the pull rod 17 is moved in a direction away from the rack 4, the gear 5 can be driven to disengage from the rack 4. At this time, the air outlet body 3 is released from the electric drive and can be converted to manual drive, that is, the air outlet body 3 can be directly pulled out or pushed back; when the pull rod 17 is moved towards the rack 4, the gear 5 can re-engage with the rack 4 to re-implement the electric drive. Through the combined setting of the pull rod 17, the gear 5, and the rack 4, both electric drive and manual drive can be performed, and different drive methods can be realized according to different working conditions and requirements, greatly improving the flexibility and diversity of the moving mode of the air outlet body 3.

[0055] In one embodiment, as Figures 3 to 6 、 Figure 12 and Figure 14 shown, the mobile drive mechanism further includes a fixed seat 8 and a slide rail 16. The fixed seat 8 is slidably connected to the slide rail 16. The fixed seat 8 may be provided with a dovetail groove or a T-shaped groove, and the slide rail 16 is correspondingly provided to ensure the stable limit of the sliding of the fixed seat 8 and the slide rail 16. The extension direction of the slide rail 16 is parallel to the length direction of the pull rod 17. The motor 6 is connected to the pull rod 17 through the fixed seat 8, that is, the gear 5, the motor 6, the fixed seat 8, and the pull rod 17 form an integral structure. This integral structure can act together when the pull rod 17 moves, and is restricted and limited by the cooperation of the fixed seat 8 and the slide rail 16.

[0056] In one embodiment, as Figure 3 shown, it further includes a convex platform 15. The convex platform 15 is connected to the air outlet body 3. The convex platform 15 is used to manually pull the air outlet body 3. For easy pulling, the convex platform 15 can protrude from the air outlet body 3 and has a structure convenient for hand contact and exertion. For example, structures such as grooves for fingers to enter are provided.

[0057] In one embodiment, as Figure 5 、 Figure 6 and Figure 13As shown, the fan 13 is also included. The fan 13 is mounted on the fixing frame 9. The fan 13 can be connected to a second switch 14. The second switch 14 is extended to a position that can be manually touched through a second harness 18. The start and stop of the fan 13 can be controlled by the second switch 14. The fan 13 is located in the gap between the air outlet body 3 and the fixing frame 9. By starting the fan 13, the space within the activity range of the air outlet body 3 can be purged. By cleaning the dust, the influence of the dust on the gear 5 and the rack 4 can be reduced. At the same time, the dust on the track 10 and the slide rail 16 can be cleaned to reduce the influence of the jamming, thereby ensuring the long-term stable operation of the air blowing movement.

[0058] like Figures 1 to 21 As shown, the present invention provides a car, including a dashboard frame and a blowing system as described above, the blowing system is installed and fixed by the dashboard frame, and the blowing system can be set only on the left side of the steering wheel 19 or only on the right side of the steering wheel 19 or on both sides. Taking the blowing system set on the left side as an example, the air inlet end of the blowing port body 3 is connected to the air duct 1 through the hose 2, the air duct 1 is connected to the air conditioning system of the car, the track 10 is fixedly installed on the dashboard frame, and the fixed end of the mobile drive mechanism is fixedly installed on the dashboard frame.

[0059] In the scheme of the present invention, in addition to being able to directly control the blowing system and the fan 13 through the first switch 12 and the second switch 14, the control of the blowing system and the fan 13 can also be connected to the central control system of the car, increasing the diversity of control methods and improving the convenience of operation. For example, the car screen receives voice input (or touch input) and gives the command to the motor 6 (such as the actuator of the motor 6), the actuator gives an execution signal, starts the motor 6 to drive the blowing port body 3 to move to a suitable position, thereby pushing the blowing port body 3 to the hands holding the steering wheel 19, and the hands can feel the blowing strongly at the first time, increasing the comfort of the initial stage of getting on the car.

[0060] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A blowing system, characterized in that, Comprising: A blowout port body, the air inlet end of the blowout port body is used to be connected to an air duct through a hose; A track, the track is used to be fixedly installed on an instrument panel skeleton; A sliding table, the sliding table includes a connecting part and a sliding part connected to each other, the connecting part is connected to the blowout port body, and the sliding part is slidably connected to the track; And a moving driving mechanism, the movable end of the moving driving mechanism is connected to the blowout port body, and the fixed end of the moving driving mechanism is used to be fixedly installed on the instrument panel skeleton.

2. The hair dryer system according to claim 1, characterized in that: There are two sliding tables, and there are two corresponding tracks. The connecting part and the sliding part are combined into an L-shaped structure. The connecting part is connected to the bottom wall of the blowout port body. The sliding parts of the two sliding tables extend in directions away from each other.

3. The hair dryer system according to claim 2, wherein: The cross section of the track is a U-shaped structure. The openings of the two U-shaped structures are arranged oppositely. The sliding part is embedded inside the U-shaped structure. A limiting structure is arranged at the end of the track, and the limiting structure is used to limit the maximum displacement of the sliding part.

4. The blowing system according to any one of claims 1 to 3, characterized in that: It further includes a fixing bracket, the fixing bracket is used to be installed on the instrument panel skeleton, the track is installed on the fixing bracket, and the fixed end of the moving driving mechanism is installed on the fixing bracket.

5. The hair drying system according to claim 4, wherein: The moving driving mechanism includes a rack and a gear. The rack is connected to the blowout port body. The extending direction of the rack is parallel to the extending direction of the track. The gear is connected to a motor. The rack is meshed with the gear, and the motor is connected to the fixing bracket.

6. The blowing system according to claim 5, wherein: The moving driving mechanism further includes a pull rod. The length direction of the pull rod is perpendicular to the extending direction of the rack. The pull rod is slidably connected to the fixing bracket. The motor is connected to one end of the pull rod, and the other end of the pull rod is for hand holding. The pull rod can drive the motor to move and then drive the gear to disengage from the rack.

7. The blowing system according to claim 6, wherein: The moving driving mechanism further includes a fixed seat and a slide rail. The fixed seat is slidably connected to the slide rail. The extending direction of the slide rail is parallel to the length direction of the pull rod. The motor is connected to the pull rod through the fixed seat.

8. The blowing system according to claim 7, wherein: It further includes a boss, the boss is connected to the blowout port body, and the boss is used to manually pull the blowout port body.

9. The hair-drying system according to claim 4, wherein: It further includes a fan, the fan is installed on the fixing bracket, and the fan is located in the gap between the blowout port body and the fixing bracket. The fan is used to purge the space within the movable range of the blowout port body.

10. An automobile, characterized in that: Including an instrument panel skeleton and a blowing system according to any one of claims 1-9. The air inlet end of the blowout port body is connected to an air duct through a hose. The track is fixedly installed on the instrument panel skeleton, and the fixed end of the moving driving mechanism is fixedly installed on the instrument panel skeleton.