Air outlet structure of vehicle air conditioner

Abstract

The utility model provides a vehicle air conditioner air outlet structure which comprises an air outlet duct, a fan part, an air duct opening and closing part and a transmission part, and the air outlet duct comprises an upstream air outlet duct and a downstream air outlet duct which is divided into a first downstream air outlet duct and a second downstream air outlet duct; the fan part is positioned in the first downstream air outlet duct; the air duct opening and closing part is arranged on the second downstream air outlet duct; the transmission part is arranged in the air outlet duct and is in transmission connection with the fan part and the air duct opening and closing part; when the air outlet volume in the first downstream air outlet duct exceeds a first threshold value, the fan part rotates to enable the transmission part to drive the air duct opening and closing part to open the second downstream air outlet duct, and the air outlet volume in the first downstream air outlet duct corresponds to the opening angle of the second downstream air outlet duct until the air outlet volume in the first downstream air outlet duct exceeds a second threshold value; the opening angle of the second downstream air outlet duct is the maximum angle, and the second threshold value is larger than the first threshold value. The air speed and the air noise of the air outlet can be automatically controlled without depending on other external energy sources, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and particularly relates to a vehicle air outlet structure. Background Art

[0002] For general vehicles, whether the air volume of the air outlet is too large or too small will affect the user's driving and riding comfort experience. Especially when the air volume is large, wind noise is likely to occur, seriously affecting the driving and riding comfort experience. In order to improve the in-vehicle comfort experience, it is often necessary to set up a mechanism for controlling wind noise and wind speed at the air outlet.

[0003] At present, the wind noise control mechanism of the air outlet in the vehicle mainly controls the wind noise by changing the air outlet speed of the air conditioning box. This method has a great impact on the air volume when the air conditioning box blows air at full power. When the air conditioning box is turned on at full power, the air outlet speed increases, generating wind noise. If the air volume is reduced, it is not conducive to the rapid cooling in the vehicle, which is not in line with the development trend of the in-vehicle comfort experience. And the wind speed control mechanism of the air outlet in the current vehicle is divided into manual control type and automatic control type. The manual control type cannot automatically control the wind speed according to the size of the air volume. The whole process of opening and closing requires manual operation by the user, which is inconvenient to use. Moreover, additional buttons or knobs are needed for control during operation, occupying space in terms of shape and space. The automatic control type is often more complex in structure, especially with a large number of electronic components in the structure and relying on external energy to work. Not only are there problems such as low detection accuracy of the sensor or slow response of wind speed adjustment during use, which are prone to failures, but also it cannot work without external power, and its use is limited.

[0004] Therefore, the existing vehicle air outlet structure with a wind speed and wind noise control mechanism has problems that are not in line with the development trend of the in-vehicle comfort experience, complex structure, inconvenient use, and limited use due to dependence on external energy. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the existing vehicle air outlet structure with a wind speed and wind noise control mechanism, which are not in line with the development trend of the in-vehicle comfort experience, complex structure, inconvenient use, and limited use due to dependence on external energy.

[0006] To solve the above technical problems, the utility model discloses a vehicle air-conditioning air outlet structure, which includes: an air duct, a fan part, an air duct opening and closing part, and a transmission part. The air duct includes an upstream air duct and a downstream air duct communicated with the upstream air duct, and the downstream air duct is divided into a first downstream air duct and a second downstream air duct along the air outlet direction; the fan part is located in the first downstream air duct and can rotate after the air volume in the first downstream air duct exceeds a first threshold value; the air duct opening and closing part is arranged on the second downstream air duct and can open or close the second downstream air duct; the transmission part is arranged in the air duct, one end is in transmission connection with the fan part, and the other end is in transmission connection with one end of the air duct opening and closing part; when the fan part rotates, the transmission part can drive the air duct opening and closing part to open the second downstream air duct, and the air volume in the first downstream air duct corresponds to the opening angle of the second downstream air duct until the air volume in the first downstream air duct exceeds a second threshold value, and the opening angle of the second downstream air duct is at the maximum angle, wherein the second threshold value is greater than the first threshold value.

[0007] With the above technical solution, the fan part of the vehicle air-conditioning air outlet structure is located in the first downstream air duct and can rotate when the air volume in the first downstream air duct is large and exceeds the first threshold value. It is connected to the air duct opening and closing part arranged on the second downstream air duct through the transmission part, so that the transmission part can drive the air duct opening and closing part to open the second downstream air duct, and the larger the air volume in the first downstream air duct, the larger the opening angle of the second downstream air duct. At this time, the air of the vehicle air conditioner can be blown out not only through the outlet of the first downstream air duct but also through the outlet of the second downstream air duct. Compared with the vehicle air-conditioning air outlet structure with only one air outlet, the air outlet wind speed and wind noise generated are significantly reduced, and the function of automatically controlling the air outlet wind speed and wind noise is realized. Compared with the air outlet structure provided with the existing wind speed and wind noise control mechanism, without reducing the air volume, the air outlet wind speed and wind noise generated are significantly reduced, the comfort experience in the vehicle is improved, and the structure is simple, easy to use, does not rely on other external energy sources, and has a wider application range.

[0008] According to another specific embodiment of the utility model, the vehicle air-conditioning air outlet structure disclosed in the embodiment of the utility model further includes a reset part. One end of the reset part is fixed on the inner wall of the air duct, and the other end is in transmission connection with the other end of the air duct opening and closing part; when the fan part does not rotate, the reset part can drive the air duct opening and closing part to close the second downstream air duct.

[0009] With the above technical solution, by setting the reset part, when the air volume in the first downstream air duct gradually becomes smaller and is less than the first threshold value, the fan part gradually stops rotating and is not enough to overcome the pulling force of the reset part. The reset part can drive the air duct opening and closing part to close the second downstream air duct, so that the air is only blown out from the first downstream air duct, realizing the automatic control of the air volume of the vehicle air-conditioning air outlet.

[0010] According to another specific embodiment of the utility model, the vehicle air-conditioning outlet structure disclosed in the embodiment of the utility model, the air duct opening and closing part includes a fixed component, a movable component and a plurality of rotatable blades; wherein the fixed component is fixed on the inner wall of the second downstream air outlet; the two ends of the movable component are respectively connected to the transmission part and the reset part in a transmission manner; the plurality of rotatable blades are distributed in sequence and at intervals, and are respectively connected to the fixed component and the movable component in rotation, and each rotatable blade can rotate between a first position and a second position; when the fan part rotates, the transmission part can drive the movable component to move, so that each rotatable blade is in a position between the first position and the second position or in the second position, an air outlet channel is formed between the fixed component and the movable component, and the second downstream air outlet is opened; when each rotatable blade is in the second position, the air outlet channel is the largest, and the angle of opening of the second downstream air outlet is at the maximum angle; when the fan part does not rotate, the reset part drives the movable component to move, so that each rotatable blade is in the first position, the air outlet channel is closed, and the second downstream air outlet is closed.

[0011] With the above technical solution, the air duct opening and closing part includes a fixed component, a movable component and a plurality of rotatable blades; the fixed component is fixed on the inner wall of the second downstream air outlet, the two ends of the movable component are respectively connected to the transmission part and the reset part, and the plurality of rotatable blades are respectively connected to the fixed component and the movable component. In this way, the movable component can link the rotation of the plurality of rotatable blades to accurately and conveniently control the opening or closing of the air outlet channel formed between the fixed component and the movable component, thereby accurately and conveniently controlling the opening or closing of the second downstream air outlet.

[0012] According to another specific embodiment of the present utility model, the vehicle air-conditioning outlet structure disclosed in the embodiment of the present utility model, the fan part includes a fan body and a fixed bracket, the fan body is fixed in the first downstream air outlet duct by the fixed bracket; the fan body includes a plurality of fan blades and a rotating shaft body, and the rotating shaft body is connected to the transmission part in a transmission manner; the plurality of fan blades can rotate after the air outlet volume in the first downstream air outlet duct exceeds a first threshold value, thereby driving the rotating shaft body to rotate and linking the transmission part to move.

[0013] By adopting the above technical solution, the multiple blades of the fan unit can rotate after the air volume in the first downstream air outlet duct exceeds the first threshold value, driving the rotating shaft to rotate and the transmission unit to move, thereby realizing the opening or closing of the second downstream air outlet duct.

[0014] According to another specific embodiment of the present utility model, the vehicle air-conditioning outlet structure disclosed in the embodiment of the present utility model, the transmission part includes a gear assembly and a sliding assembly; one end of the gear assembly is connected to the fan part, and the other end is transmission-connected to one end of the sliding assembly, and the other end of the sliding assembly is connected to one end of the movable component; when the rotating shaft of the fan part rotates, it drives the gear assembly to rotate, and the linkage sliding assembly drives the movable component to move.

[0015] Using the above technical solution, the transmission part includes a gear assembly and a sliding assembly, one end of the gear assembly is connected to the fan part, and the other end of the sliding assembly is connected to one end of the movable component. By setting the transmission part, when the air volume in the first downstream air outlet is large and greater than the first threshold, the rotating shaft of the fan part rotates, driving the gear assembly to rotate, and the linkage sliding assembly drives the movable component to move, thereby realizing the conversion of wind energy into kinetic energy, thereby controlling the second downstream air outlet to open or close.

[0016] According to another specific embodiment of the present invention, the vehicle air-conditioning outlet structure disclosed in the embodiment of the present invention, the gear assembly includes a driving bevel gear, a driven bevel gear, a transmission shaft, a first driven gear and a second driven gear arranged in sequence; the driving bevel gear is transmission-connected to the rotating shaft of the fan part, and the second driven gear is transmission-connected to the sliding assembly; when the rotating shaft rotates, the driving bevel gear is driven to rotate, and the driven bevel gear, the transmission shaft, the first driven gear and the second driven gear are rotated in sequence, driving the sliding assembly to move.

[0017] By adopting the above technical solution, the gear assembly includes a driving bevel gear, a driven bevel gear, a transmission shaft, a first driven gear and a second driven gear which are arranged in sequence. Since the gear transmission has better stability, compact structure and reliable operation, the movement of the sliding assembly can be achieved more stably, and finally the second downstream air outlet duct can be stably controlled to open or close.

[0018] According to another specific embodiment of the utility model, the vehicle air-conditioning outlet structure disclosed in the embodiment of the utility model, the sliding component includes a slidable component and a slidable component, the slidable component is slidably connected to the slidable component; the slidable component includes a fixedly connected rack and a slidable component; the rack and the second driven gear are transmission-connected, and the slidable component is fixedly connected to one end of the movable component.

[0019] With the above technical solution, the sliding component includes a slid member and a slidable component that are slidably connected. The rack and the second driven gear are in transmission connection. The slidable member is fixedly connected to one end of the movable member, realizing the conversion of the rotational force into the moving force. When the rotating shaft rotates to drive the driving helical gear to rotate, it successively drives the driven helical gear, the transmission shaft, the first driven gear, and the second driven gear to rotate, driving the fixedly connected rack and the slidable member to move relative to the slid member, realizing the movement of the movable member.

[0020] According to another specific embodiment of the present invention, in the vehicle air outlet structure disclosed in the embodiment of the present invention, the transmission part further includes a first pulley assembly. The first pulley assembly includes a first traction rope, a second traction rope, and a movable pulley; one end of the first traction rope is connected to one end of the second traction rope through the movable pulley, the other end of the first traction rope is fixedly connected to the slidable member, and the other end of the second traction rope is fixedly connected to one end of the movable member.

[0021] With the above technical solution, one end of the first traction rope is connected to one end of the second traction rope through the movable pulley, making the transmission stroke of the rack and the slidable member longer and requiring less acting force, facilitating the precise control of the opening angle of the second downstream air duct.

[0022] According to another specific embodiment of the present invention, in the vehicle air outlet structure disclosed in the embodiment of the present invention, the transmission part further includes a fixed pulley. The other end of the second traction rope passes through the fixed pulley and is fixedly connected to one end of the movable member.

[0023] With the above technical solution, the transmission part further includes a fixed pulley. The other end of the second traction rope passes through the fixed pulley and is fixedly connected to one end of the movable member. By setting the fixed pulley, the direction of the pulling force of the second traction rope can be adjusted, making the movement direction of the movable member more in line with the operation requirements and realizing the synchronous control of the deflection angles of multiple rotatable vanes.

[0024] According to another specific embodiment of the present invention, in the vehicle air outlet structure disclosed in the present invention, the transmission part further includes a limiting component. The limiting component is arranged on the sliding path of the slidable member and includes: a first limiting member and a second limiting member. The slidable member can slide between the first limiting member and the second limiting member; when the slidable member abuts against the first limiting member, each rotatable vane is in the first position, the air outlet channel is closed, and the second downstream air duct is closed; when the slidable member abuts against the second limiting member, each rotatable vane is in the second position, the air outlet channel is the largest, and the opening angle of the second downstream air duct is at the maximum angle.

[0025] With the above technical solution, the transmission part further includes a limiting component, including: a first limiting member and a second limiting member. The slidable member can slide between the first limiting member and the second limiting member, restricting each rotatable blade to only rotate between a first position and a second position, preventing the sliding stroke of the slidable member from being too large, which may cause the rotation of each rotatable blade to exceed the position, ultimately resulting in the inability to control the opening angle of the second downstream air outlet duct.

[0026] The beneficial effects of the present utility model are as follows:

[0027] The present utility model provides a vehicle air-conditioning air outlet structure, including: an air outlet duct, a fan part, an air duct opening and closing part, and a transmission part. The air outlet duct includes an upstream air outlet duct and a downstream air outlet duct communicating with the upstream air outlet duct, and the downstream air outlet duct is divided into a first downstream air outlet duct and a second downstream air outlet duct along the air outlet direction. The fan part is located in the first downstream air outlet duct and can rotate when the air volume in the first downstream air outlet duct is relatively large and greater than a first threshold value. It is connected to the air duct opening and closing part provided on the second downstream air outlet duct through the transmission part, so that the air duct opening and closing part can be driven by the transmission part to open the second downstream air outlet duct, and the larger the air volume in the first downstream air outlet duct, the larger the opening angle of the second downstream air outlet duct. At this time, in addition to being blown out through the outlet of the first downstream air outlet duct, the air of the vehicle air conditioner can also be blown out from the outlet of the second downstream air outlet duct. In this way, compared with the air outlet structure provided with the existing air velocity and wind noise control mechanism, without reducing the air volume, the air velocity and wind noise generated at the air outlet are significantly reduced, realizing the function of automatically controlling the air velocity and wind noise at the air outlet, improving the in-vehicle comfort experience, and having a simple structure, convenient use, not relying on other external energy sources, and a wider application range. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model (the second downstream air outlet duct is closed);

[0029] Figure 2 It is a schematic structural diagram of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model (the second downstream air outlet duct is opened);

[0030] Figure 3 It is a schematic structural diagram of the air duct opening and closing part and the reset part of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model (the air outlet channel of the air duct opening and closing part is closed);

[0031] Figure 4 It is a schematic structural diagram of the air duct opening and closing part of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model (the air outlet channel of the air duct opening and closing part is opened);

[0032] Figure 5Schematic diagram of the transmission part and the air duct opening and closing part of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model (the air outlet channel of the air duct opening and closing part is closed);

[0033] Figure 6 Schematic diagram of the fan part and the transmission part of the vehicle air-conditioning air outlet structure provided by the embodiment of the present utility model.

[0034] Explanation of reference numerals:

[0035] 100: Air outlet duct; 110: Upstream air outlet duct; 120: First downstream air outlet duct; 130: Second downstream air outlet duct; 200: Fan part; 210: Fan blade; 220: Fixed bracket; 230: Rotating shaft body; 300: Air duct opening and closing part; 310: Fixed member; 320: Movable member; 330: Rotatable blade; 400: Transmission part; 410: Driving bevel gear; 420: Driven bevel gear; 430: Transmission shaft; 440: First driven gear; 450: Second driven gear; 460: Sliding member; 470: Rack; 480: Slidable member; 491: First traction rope; 492: Second traction rope; 493: Movable pulley; 494: Fixed pulley; 495: First limiting member; 496: Second limiting member; 500: Reset part. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0037] For general vehicles, too large or too small air volume of the air-conditioning air outlet will affect the driving and riding comfort experience of users. Especially when the air volume is large, wind noise is likely to occur, seriously affecting the driving and riding comfort experience. In order to improve the in-vehicle comfort experience, it is often necessary to set up a mechanism for controlling wind noise and wind speed at the air outlet.

[0038] At present, the wind noise control mechanism at the air outlet in the vehicle mainly controls the wind noise by changing the air outlet speed of the air-conditioning box. This method has a great influence on the air volume when the air-conditioning box blows air at full power. When the air-conditioning box is fully powered on, the air outlet speed increases, generating wind noise. If the air volume is reduced, it is not conducive to the rapid cooling in the vehicle, which is not in line with the development trend of the in-vehicle comfort experience.

[0039] At present, the air outlet control wind speed mechanisms in vehicles are divided into manual control types and automatic control types. Manual control types cannot automatically control the wind speed according to the size of the air volume. The entire process of turning on and off requires user operation, which is inconvenient to use. Moreover, additional buttons or knobs are needed for control during operation, occupying space in terms of styling and space. Automatic control types are often more complex in structure, especially with a large number of electronic components in the structure and relying on external energy to work. Not only are problems such as low sensor detection accuracy or slow wind speed adjustment response and easy failure prone to occur during use, but they also cannot work without external power, with limited use.

[0040] Therefore, the automotive air outlet structures with wind speed and wind noise control mechanisms in the prior art have problems that do not conform to the development trend of in-vehicle comfort experience, complex structure, inconvenient use, and limited use due to relying on external energy.

[0041] To solve the above technical problems, the present utility model discloses a vehicle air conditioning outlet structure, including: an air duct body, a fan structure, a transmission mechanism, and a side air duct small door structure. The internal air duct of the air duct body is divided into a main air duct and a side air duct. The fan structure is arranged inside the main air duct. The side air duct small door structure is arranged between the air inlet duct and the side air duct, and the side air duct small door structure controls the opening and closing of the side air duct. The side air duct small door structure is connected to the transmission mechanism. During use, when the air volume in the main air duct is too large to generate wind noise, the fan structure rotates under force, driving the transmission mechanism to move, and driving the side air duct small door structure to increase the opening angle of the side air duct small door so that air blows out from the side air duct, thereby realizing the control of the wind speed and wind noise in the main air duct. The larger the air volume blown out from the main air duct, the larger the opening angle of the side air duct until the maximum opening angle. When air blows out from the main air duct and the air volume decreases, the fan structure stops rotating, driving the transmission mechanism to move in the reverse direction, driving the opening angle of the side air duct to decrease until it closes so that the air blown out from the side air duct decreases until there is no air, making the air only blow out from the main air duct, realizing the automatic control of the air volume. And compared with the existing air outlet structures with wind speed and wind noise control mechanisms, it not only has a high in-vehicle comfort experience, simple structure, and more convenient use, but also has the advantage of not relying on other external energy. The embodiments of the present utility model will be further described in detail below with reference to the drawings.

[0042] In view of the above problems, the present utility model provides a vehicle air conditioning outlet structure, such as Figure 1 and Figure 2, including: an air outlet duct 100, a fan unit 200, an air duct opening and closing unit 300, and a transmission unit 400. The air outlet duct 100 includes an upstream air outlet duct 110 and a downstream air outlet duct communicating with the upstream air outlet duct 110, and the downstream air outlet duct is separated into a first downstream air outlet duct 120 and a second downstream air outlet duct 130 along the air outlet direction. The fan unit 200 is located in the first downstream air outlet duct 120 and can rotate after the air volume in the first downstream air outlet duct 120 exceeds a first threshold. The air duct opening and closing unit 300 is arranged on the second downstream air outlet duct 130 and can open or close the second downstream air outlet duct 130. The transmission unit 400 is arranged in the air outlet duct 100, with one end drivingly connected to the fan unit 200 and the other end drivingly connected to one end of the air duct opening and closing unit 300.

[0043] It should be noted that in this embodiment, the width relationship between the first downstream air outlet duct 120 and the second downstream air outlet duct 130, into which the downstream air outlet duct is separated along the air outlet direction, can be that the first downstream air outlet duct 120 is wider and the second downstream air outlet duct 130 is narrower, or the widths of the two can be the same, or there can be other settings. Those skilled in the art can set according to the actual situation, and this embodiment does not make specific limitations. In addition, the first threshold is the air volume value when the fan unit 200 can start to rotate, and it is also the air volume value corresponding to the generation of wind noise in the first downstream air outlet duct 120. Those skilled in the art can obtain the specific value of the first threshold through experiments, and this embodiment does not limit its specific value.

[0044] Furthermore, it should be noted that as long as the transmission unit 400 is arranged in the air outlet duct 100 between the fan unit 200 and the air duct opening and closing unit 300 to drivingly connect the fan unit 200 and the air duct opening and closing unit 300, this embodiment does not make specific limitations. In a specific embodiment, in order to avoid the influence of the transmission unit 400 on the air outlet of the first downstream air outlet duct 120, the transmission unit 400 can be arranged at the inner wall position of the first downstream air outlet duct 120 as shown in Figure 1 . The driving connection method can specifically be a detachable fixed connection or a non-detachable fixed connection. The detachable fixed connection includes but is not limited to snap connection and threaded connection, and the non-detachable fixed connection includes but is not limited to welding and bonding. This embodiment does not make specific limitations, and those skilled in the art can select according to actual needs.

[0045] When the air volume in the first downstream air outlet duct 120 exceeds the first threshold to generate wind noise, the fan unit 200 rotates, which can drive the air duct opening and closing unit 300 through the transmission unit 400 to open the second downstream air outlet duct 130, as shown in Figure 2As shown, the air volume in the first downstream air outlet 120 corresponds to the opening angle of the second downstream air outlet 130, until the air volume in the first downstream air outlet 120 exceeds the second threshold, and the opening angle of the second downstream air outlet 130 is at the maximum angle, wherein the second threshold is greater than the first threshold. The function of automatic control of the wind speed and wind noise of the air outlet is realized. Compared with the air outlet structure with the existing wind speed and wind noise control mechanism, the wind speed and wind noise generated at the air outlet are significantly reduced without reducing the air volume, thereby improving the in-vehicle comfort experience, and the structure is simple, easy to use, does not rely on other external energy sources, and has a wider range of applications.

[0046] It should be noted that, in the present embodiment, the air volume in the first downstream air outlet 120 corresponds to the opening angle of the second downstream air outlet 130 just being at the maximum angle. When the air volume in the first downstream air outlet 120 exceeds the second threshold value, the opening angle of the second downstream air outlet 130 is always at the maximum angle. Those skilled in the art can obtain the specific value of the second threshold value through experiments, and the present embodiment does not limit its specific value.

[0047] In one embodiment of the present invention, Figures 1-3 As shown, the air outlet structure of the vehicle air conditioner further includes a reset part 500, one end of which is fixed on the inner wall of the air outlet 100, and the other end is transmission-connected with the other end of the air duct opening and closing part 300. When the fan part 200 does not rotate, the reset part 500 can drive the air duct opening and closing part 300 to close the second downstream air outlet 130. Through the arrangement of this structure, since the reset part 500 continuously provides a certain pulling force to the air duct opening and closing part 300, not only can the second downstream air outlet 130 be kept closed when the air volume of the first downstream air outlet 120 is small, resulting in a low wind speed or not started, but also when the air volume of the first downstream air outlet 120 is large and there is noise, the fan part 200 rotates, so that the transmission part 400 can overcome the pulling force of the reset part 500 on the air duct opening and closing part 300 and drive the air duct opening and closing part 300 to open the second downstream air outlet 130, thereby realizing the functions of automatic control of air volume and noise reduction.

[0048] It should be noted that, in this embodiment, Figure 1 As shown, the reset portion 500 may be fixed on the inner wall of the upstream air outlet duct 110 , or may be fixed on the inner wall at other positions, and this embodiment does not impose any specific limitation on this.

[0049] In one embodiment of the present utility model, the reset portion 500 includes a reset member, a towing rope, and a fixed pulley. The towing rope passes through the fixed pulley to adjust the direction of the pulling force of the towing rope. One end is fixedly connected to the reset member through a connection end, and the other end is fixedly connected to the other end of the air duct opening and closing portion 300. The reset member includes a reset member body and a reset member bracket fixedly connected. One end of the towing rope is connected to the reset member body through a connection end, and the reset member bracket is fixed on the inner wall of the air outlet duct 100, specifically, it can be fixed on the inner wall of the upstream air outlet duct 110. The reset member body in this embodiment includes, but is not limited to, a reset spring, other elastic members or components.

[0050] In one embodiment of the present utility model, as Figures 1-4 shown, the air duct opening and closing portion 300 includes a fixed member 310, a movable member 320, and a plurality of rotatable vanes 330; wherein, the fixed member 310 is fixed on the inner wall of the second downstream air outlet duct 130; both ends of the movable member 320 are respectively in transmission connection with the transmission portion 400 and the reset portion 500; the plurality of rotatable vanes 330 are arranged in sequence and at intervals, and are respectively rotatably connected to the fixed member 310 and the movable member 320, and each rotatable vane 330 can rotate between a first position and a second position.

[0051] In a specific embodiment, several fixed columns are installed in the fixed member 310. Each rotatable vane 330 is inserted on a corresponding fixed column, and each rotatable vane 330 can rotate along with the corresponding fixed column. Each rotatable vane 330 can also be rotatably connected to the movable member 320 through a similar fixed column. Through this structural arrangement, each rotatable vane 330 can follow the movable member 320 to move synchronously, and the opening and closing of the second downstream air outlet duct 130 can be controlled more precisely.

[0052] It should be noted that in this embodiment, in addition to arranging the plurality of rotatable vanes 330 at intervals in the horizontal direction as Figure 1 shown, and each rotatable vane 330 can rotate along the fixed column, i.e., in the vertical direction, the plurality of rotatable vanes 330 can also be arranged at intervals in the vertical direction, and each rotatable vane 330 can rotate in the horizontal direction.

[0053] When the fan portion 200 rotates, the transmission portion 400 can overcome the pulling force of the reset portion 500 on the movable member 320 to drive the movable member 320 to move in the opening direction, as Figure 1 and Figure 2As shown, specifically, it can move to the left so that each rotatable blade 330 is in a position between the first position and the second position or the second position, an air outlet channel is formed between the fixed member 310 and the movable member 320, and the second downstream air outlet duct 130 is opened; when each rotatable blade 330 is in the second position, the air outlet channel is the largest, and the opening angle of the second downstream air outlet duct 130 is at the maximum angle; when the fan unit 200 does not rotate, the reset unit 500 drives the movable member 320 to move in the closing direction, as Figure 1 and Figure 2 shown, specifically, it can move to the right so that each rotatable blade 330 is in the first position, the air outlet channel is closed, and the second downstream air outlet duct 130 is closed.

[0054] In one embodiment of the present invention, as Figures 1-6 shown, the fan unit 200 includes a fan body and a fixing bracket 220, and the fan body is fixed in the first downstream air outlet duct 120 through the fixing bracket 220; the fan body includes a plurality of fan blades 210 and a rotating shaft body 230, and the rotating shaft body 230 is in transmission connection with the transmission part 400; when the air volume in the first downstream air outlet duct 120 exceeds the first threshold value, the plurality of fan blades 210 can rotate, driving the rotating shaft body 230 to rotate and linking the transmission part 400 to move. In a specific embodiment, the transmission part 400 is arranged inside the fixing bracket 220. The fan body is arranged at the center of the first downstream air outlet duct 120.

[0055] It should be noted that the fan blades 210 of the fan unit 200 include a specific angle or curved surface structure. When the wind blows out from the first downstream air outlet duct 120 and is greater than the first threshold value, that is, the air volume value that generates wind noise, the wind flowing through the fan blades 210 of the fan unit 200 will push it to rotate in a specific direction, which can specifically be the clockwise direction or the counterclockwise direction, as long as the wind force can be converted into a rotational force, and the specific rotation direction is determined by the setting structure of the fan blades 210. And as described above, the first threshold value can be obtained through experiments. After determining the first threshold value, those skilled in the art can further select or set the fan body whose fan blades 210 can rotate in a preset rotation direction when the air volume in the first downstream air outlet duct 120 exceeds the first threshold value through experiments.

[0056] In one embodiment of the present invention, the transmission part 400 includes a gear assembly and a sliding assembly; one end of the gear assembly is connected to the fan unit 200, the other end is in transmission connection with one end of the sliding assembly, and the other end of the sliding assembly is connected to one end of the movable member 320; when the rotating shaft body 230 of the fan unit 200 rotates, it drives the gear assembly to rotate, linking the sliding assembly to drive the movable member 320 to move. The conversion of wind energy into kinetic energy is realized, thereby controlling the opening or closing of the second downstream air outlet duct 130.

[0057] It should be noted that some components of the gear assembly can be fixedly arranged on the inner wall of the first downstream air duct 120, and some other components can be fixedly arranged inside the fixing bracket 220 of the fan unit 200. The sliding assembly can be fixedly arranged on the inner wall of the first downstream air duct 120.

[0058] In one implementation manner of the present utility model, as Figures 1-6 shown, the gear assembly includes a driving helical gear 410, a driven helical gear 420, a transmission shaft 430, a first driven gear 440, and a second driven gear 450 arranged in sequence; the driving helical gear 410 is in transmission connection with the rotating shaft body 230 of the fan unit 200, and the second driven gear 450 is in transmission connection with the sliding assembly; when the rotating shaft body 230 rotates to drive the driving helical gear 410 to rotate, the driven helical gear 420, the transmission shaft 430, the first driven gear 440, and the second driven gear 450 are sequentially driven to rotate, driving the sliding assembly to move. Since gear transmission has better stability, a compact structure, and reliable operation, the movement of the sliding assembly can be realized more stably, and finally the opening or closing of the second downstream air duct 130 can be stably controlled.

[0059] It should be noted that the driving helical gear 410 is fixedly arranged at the tail end of the rotating shaft body 230 and is coupled with the driven helical gear 420. In addition to the above two driven gears and one transmission shaft, the gear assembly can also include three driven gears and two transmission shafts, or can also include other numbers of driven gears and transmission shafts, which can be specifically set according to actual design and usage requirements, and this implementation manner does not limit this.

[0060] In one implementation manner of the present utility model, the sliding assembly includes a sliding member 460 and a slidable assembly, and the slidable assembly is slidably connected to the sliding member 460; the slidable assembly includes a rack 470 and a slidable member 480 fixedly connected; the rack 470 is in transmission connection with the second driven gear 450, and the slidable member 480 is fixedly connected to one end of the movable member 320.

[0061] Specifically, when the rotating shaft body 230 rotates to drive the driving helical gear 410 to rotate, the driven helical gear 420, the transmission shaft 430, the first driven gear 440, and the second driven gear 450 are sequentially driven to rotate, driving the rack 470 and the slidable member 480 to slide relative to the sliding member 460, and specifically can slide along the air outlet direction of the first downstream air duct 120, thereby driving the movable member 320 to move. In this way, the conversion from the rotational force to the moving force is realized through a simple structure.

[0062] In one embodiment of the present utility model, the transmission part 400 further includes a first pulley assembly, and the first pulley assembly includes a first towing rope 491, a second towing rope 492 and a movable pulley 493; one end of the first towing rope 491 is connected to one end of the second towing rope 492 through the movable pulley 493, the other end of the first towing rope 491 is fixedly connected to the slidable member 480, and the other end of the second towing rope 492 is fixedly connected to one end of the movable member 320.

[0063] It should be noted that in this embodiment, the movable pulley 493 is arranged between the upper and lower limits of the pulley, so that the movable pulley 493 can only slide along a preset path. In a specific embodiment, in order to prevent the movement of the movable pulley 493 from affecting the air outlet efficiency of the first downstream air duct 120, it is defined that the movable pulley 493 moves along the air outlet direction of the first downstream air duct 120.

[0064] Specifically, when the rotating shaft body 230 rotates to drive the driving helical gear 410 to rotate, it successively drives the driven helical gear 420, the transmission shaft 430, the first driven gear 440 and the second driven gear 450 to rotate, driving the rack 470 and the slidable member 480 to slide relative to the member to be slid 460, thereby driving the movable pulley 493 to move through the first towing rope 491, and driving the second towing rope 492 to pull the movable member 320 to move. In this way, the transmission stroke of the rack 470 and the slidable member 480 is longer, the required acting force is smaller, and it is convenient to accurately control the opening angle of the second downstream air duct 130.

[0065] In one embodiment of the present utility model, the transmission part 400 further includes a fixed pulley 494, and the other end of the second towing rope 492 passes through the fixed pulley 494 and is fixedly connected to one end of the movable member 320. By arranging the fixed pulley 494, the direction of the pulling force of the second towing rope 492 can be adjusted, so that the movement direction of the movable member 320 more conforms to the operation requirements, and the deflection angles of a plurality of rotatable vanes 330 can be synchronously controlled.

[0066] In one embodiment of the present utility model, as Figures 1-6As shown, the transmission part 400 further includes a limiting component, which is arranged on the sliding path of the slidable member 480 and includes: a first limiting member 495 and a second limiting member 496. The slidable member 480 can slide between the first limiting member 495 and the second limiting member 496; when the slidable member 480 abuts against the first limiting member 495, each rotatable blade 330 is in the first position, the air outlet channel is closed, and the second downstream air outlet duct 130 is closed; when the slidable member 480 abuts against the second limiting member 496, each rotatable blade 330 is in the second position, the air outlet channel is at its maximum, and the opening angle of the second downstream air outlet duct 130 is at the maximum angle. This prevents the sliding stroke of the slidable member 480 from being too large, which may cause the rotation of each rotatable blade 330 to over-position, ultimately resulting in the inability to control the opening angle of the second downstream air outlet duct 130.

[0067] During the use of the vehicle air-conditioning air outlet structure provided by the present utility model, as Figure 1 shown, in the initial state, the second downstream air outlet duct 130 is closed. When the air volume in the first downstream air outlet duct 120 is greater than the first threshold and generates wind noise, the force generated by the wind blowing through the fan part 200 arranged in the first downstream air outlet duct 120 causes its fan blade 210 to rotate, driving the rotation of its rotating shaft body 230 and the driving bevel gear 410 of the transmission part 400. Then, it successively drives the driven bevel gear 420, the transmission shaft 430, the first driven gear 440, and the second driven gear 450 of the transmission part 400 to rotate, further driving the rack 470 and the slidable member 480 to slide between the limiting members along the air outlet direction of the first downstream air outlet duct 120 relative to the member to be slid 460. Thus, the movable pulley 493 is driven to move along the air outlet direction of the first downstream air outlet duct 120 through the first towing rope 491, driving the second towing rope 492 passing through the fixed pulley 494 to overcome the pulling force of the reset part 500 on the movable member 320 and pull the movable member 320 in the opening direction, driving each rotatable blade 330 to rotate, as Figure 2As shown, an air outlet channel is formed between the fixed member 310 and the movable member 320. When the second downstream air outlet duct 130 is opened, at this time, the air can be blown out from the second downstream air outlet duct 130, thereby realizing the control of the wind speed and wind noise of the first downstream air outlet duct 120. The greater the air volume in the first downstream air outlet duct 120, the greater the opening angle of the second downstream air outlet duct 130 until it is opened to the maximum. After that, when the air volume in the first downstream air outlet duct 120 gradually decreases to be less than the second threshold value, the force generated by the rotation of the fan unit 200 gradually decreases, and the opening angle of the second downstream air outlet duct 130 gradually becomes smaller. When the air volume in the first downstream air outlet duct 120 gradually decreases to be less than or equal to the first threshold value and is not sufficient to blow the fan unit 200 to rotate, the pulling force of the movable member 320 by the transmission unit 400 is not sufficient to overcome the pulling force of the reset unit 500 on it. The reset unit 500 pulls the movable member 320 to move in the closing direction, driving each rotatable blade 330 to rotate. The air outlet channel between the fixed member 310 and the movable member 320 is closed, and the second downstream air outlet duct 130 is closed, so that the air is only blown out from the first downstream air outlet duct 120, realizing the automatic control of the air volume. Compared with the air outlet structure provided with the existing wind speed and wind noise control mechanism, not only the in-vehicle comfort experience is high, the structure is simple, and it is more convenient to use, but also it has the advantage of not relying on other external power.

[0068] It should be noted that, in addition to the embodiments of the present invention described in the above specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in combination with the preferred embodiments, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in combination with the embodiment is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0069] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0070] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0071] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0072] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0073] Although the present utility model has been illustrated and described by referring to some preferred embodiments of the present utility model, those of ordinary skill in the art should understand that the above content is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present utility model.

Claims

1. A vehicle air-conditioning air outlet structure, characterized in that, include: An air outlet duct, the air outlet duct comprising an upstream air outlet duct and a downstream air outlet duct connected to the upstream air outlet duct, and the downstream air outlet duct is divided into a first downstream air outlet duct and a second downstream air outlet duct along an air outlet direction; a fan unit, the fan unit being located in the first downstream air outlet duct and being capable of rotating after an air volume in the first downstream air outlet duct exceeds a first threshold; an air duct opening and closing portion, the air duct opening and closing portion being arranged on the second downstream air outlet duct and capable of opening or closing the second downstream air outlet duct; A transmission part, wherein the transmission part is arranged in the air outlet duct, one end of the transmission part is transmission-connected to the fan part, and the other end of the transmission part is transmission-connected to one end of the air duct opening and closing part; When the fan unit rotates, the transmission unit can drive the air duct opening and closing unit to open the second downstream air outlet, and the air volume in the first downstream air outlet corresponds to the opening angle of the second downstream air outlet, until the air volume in the first downstream air outlet exceeds a second threshold value, and the opening angle of the second downstream air outlet is at a maximum angle, wherein the second threshold value is greater than the first threshold value.

2. The vehicle air-conditioning air outlet structure according to claim 1, wherein, The vehicle air-conditioning outlet structure further includes a reset portion, one end of which is fixed to the inner wall of the air outlet duct, and the other end of which is transmission-connected to the other end of the air duct opening and closing portion; When the fan unit does not rotate, the reset unit can drive the air duct opening and closing unit to close the second downstream air outlet duct.

3. The vehicle air-conditioning air outlet structure according to claim 2, characterized in that, The air duct opening and closing part includes a fixed component, a movable component and a plurality of rotatable blades; wherein The fixing member is fixed on the inner wall of the second downstream air outlet duct; The two ends of the movable member are respectively connected to the transmission part and the reset part in a transmission manner; The plurality of rotatable blades are sequentially and spaced apart and are rotatably connected to the fixed component and the movable component respectively, and each rotatable blade can rotate between a first position and a second position; When the fan unit rotates, the transmission unit drives the movable member to move, so that each rotatable blade is located at a position between the first position and the second position or at the second position, an air outlet channel is formed between the fixed member and the movable member, and the second downstream air outlet channel is opened; When each of the rotatable blades is in the second position, the air outlet passage is at its maximum, and the opening angle of the second downstream air outlet passage is at the maximum angle; When the fan unit does not rotate, the reset unit drives the movable member to move, so that each of the rotatable blades is in the first position, the air outlet channel is closed, and the second downstream air outlet channel is closed.

4. The vehicle air-conditioning outlet structure according to claim 3, characterized in that The fan unit comprises a fan body and a fixing bracket, wherein the fan body is fixed in the first downstream air outlet duct by the fixing bracket; The fan body comprises a plurality of fan blades and a rotating shaft, and the rotating shaft is in transmission connection with the transmission part; The plurality of fan blades can rotate after the air volume in the first downstream air outlet duct exceeds the first threshold value, thereby driving the rotating shaft to rotate and linking the transmission part to move.

5. The vehicle air-conditioning air outlet structure according to claim 4, characterized in that, The transmission part includes a gear assembly and a sliding assembly; One end of the gear assembly is connected to the fan part, and the other end is transmission-connected to one end of the sliding assembly, and the other end of the sliding assembly is connected to one end of the movable member; When the rotating shaft of the fan unit rotates, the gear assembly is driven to rotate, and the sliding assembly is linked to drive the movable component to move.

6. The vehicle air-conditioning air outlet structure according to claim 5, characterized in that, The gear assembly includes a driving helical gear, a driven helical gear, a transmission shaft, a first driven gear and a second driven gear which are arranged in sequence; The driving bevel gear is in transmission connection with the rotating shaft of the fan unit, and the second driven gear is in transmission connection with the sliding assembly; When the rotating shaft rotates, the driving bevel gear is driven to rotate, and the driven bevel gear, the transmission shaft, the first driven gear and the second driven gear are sequentially driven to rotate, thereby driving the sliding assembly to move.

7. The vehicle air-conditioning air outlet structure according to claim 6, characterized in that, The sliding assembly comprises a slidable component and a slidable component, wherein the slidable component is slidably connected to the slidable component; The slidable component includes a fixedly connected rack and a slidable member; the rack is transmission-connected to the second driven gear, and the slidable member is fixedly connected to the one end of the movable member.

8. The vehicle air-conditioning air outlet structure according to claim 7, characterized in that, The transmission part further includes a first pulley assembly, which includes a first traction rope, a second traction rope and a movable pulley; One end of the first traction rope is connected to one end of the second traction rope through the movable pulley, the other end of the first traction rope is fixedly connected to the slidable component, and the other end of the second traction rope is fixedly connected to the one end of the movable component.

9. The vehicle air-conditioning air outlet structure according to claim 8, characterized in that, The transmission part further includes a fixed pulley, and the other end of the second traction rope passes through the fixed pulley and is fixedly connected to the one end of the movable member.

10. The vehicle air-conditioning air outlet structure according to claim 9, characterized in that, The transmission part further comprises a limiting assembly, which is arranged on the sliding path of the slidable member and comprises: a first limiting member and a second limiting member, and the slidable member can slide between the first limiting member and the second limiting member; When the slidable member abuts against the first limiting member, each of the rotatable blades is in the first position, the air outlet channel is closed, and the second downstream air outlet channel is closed; When the slidable member abuts against the second limiting member, each of the rotatable blades is in the second position, the air outlet passage is at its maximum, and the opening angle of the second downstream air outlet passage is at the maximum angle.

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