Blowing device

Abstract

The present disclosure relates to an air blowing device configured to face a vehicle windshield and comprising: a fan assembly positioned adjacent to the windshield; and an air nozzle connected to the fan assembly via a duct so that fluid flows between the fan assembly and the air nozzle. The air nozzle is positioned facing the windshield and is configured to adjust the pressure and angle of air discharged toward the windshield according to the vehicle's driving environment.

Description

Technical Field

[0001] The present disclosure relates to an air blowing device. More specifically, the device includes a nozzle facing a vehicle windshield and a nozzle cover configured to cover the nozzle. The opening angle of the nozzle cover is controlled according to the vehicle's driving environment to effectively discharge compressed air toward the windshield, ensuring a clear field of view. Background Art

[0002] Usually, such as Figure 1 As shown, the vehicle is configured to have a windshield with a wiper system.

[0003] The wiper system is configured to operate along the surface of the windshield to ensure a clear view, especially on rainy days.

[0004] In addition, while the wiper system is operating, washer fluid is sprayed through the washer fluid nozzles, causing the wiper arms of the wiper system to wipe the windshield, thereby providing a clear view for the driver.

[0005] However, the conventional wiper system is configured so that the wiper arm reciprocates while in contact with the windshield, and this operation of the wiper arm blocks the driver's field of vision. In addition, the wiper arm is a consumable part and needs to be frequently replaced.

[0006] Since recently developed hybrid vehicles or plug-in hybrid vehicles can be driven by electric energy, the role of a conventional engine is reduced and the size of the engine is also reduced, thereby increasing the space available in the front of the vehicle.

[0007] Therefore, a technology has been proposed that uses a fan located at the front side of a vehicle to discharge compressed air toward a windshield in order to provide a driver with a clear view, particularly on rainy days.

[0008] The above information disclosed in this Background section is only for enhancement of understanding of the background of the disclosure and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Summary of the Invention

[0009] The present disclosure is intended to solve the above-mentioned problems associated with the prior art, and an object of the present disclosure is to provide an air blowing device that employs an air blowing technology of discharging compressed air toward a windshield to ensure a clear field of vision.

[0010] Another object of the present disclosure is to provide an air blowing device capable of controlling the pressure and horizontal (left-right) angle of discharged air according to a driving environment of a vehicle.

[0011] Yet another object of the present disclosure is to provide an air blowing device capable of preventing the occurrence of vibration and noise of a nozzle cover.

[0012] The objectives of the present disclosure are not limited to the above-mentioned objectives. Other objectives not mentioned herein should be clearly understood by those skilled in the art from the following description, and other objectives not mentioned herein will be apparent with reference to the embodiments of the present disclosure. In addition, the objectives of the present disclosure can be achieved by the components and combinations thereof described in the appended claims.

[0013] An air blow device for a vehicle for achieving the object of the present disclosure includes the following configuration.

[0014] In one aspect, the present disclosure provides an air blowing device comprising: a cowl top assembly positioned to face a windshield; a fan assembly located within the cowl top assembly; and an air nozzle connected to the fan assembly via a duct so that fluid flows between the fan assembly and the air nozzle, with the air nozzle facing the windshield. The air nozzle is configured to adjust the pressure and angle of air discharged toward the windshield according to the vehicle's driving environment.

[0015] In an embodiment, the fan assembly may include: a housing located inside the cowl upper cover assembly; a motor assembly located inside the housing; blades configured to receive rotational force from the motor assembly; and a shroud configured to guide the flow of air drawn in by the rotation of the blades.

[0016] In another embodiment, the air nozzle may include: a nozzle housing including an opening connected to a duct and facing a windshield; a nozzle configured to discharge air introduced from a fan assembly toward the opening; nozzle blades configured to guide the flow of the discharged air in a horizontal direction; and a nozzle cover configured to open when a pressure of the discharged air is greater than or equal to a predetermined value.

[0017] In yet another embodiment, the opening angle of the nozzle cover may be determined according to the driving speed of the vehicle.

[0018] In another embodiment, the air blowing device may further include an angle limiting boss provided on the inner surface of the nozzle cover to control the horizontal tilt angle of the nozzle blade. The horizontal tilt angle of the nozzle blade may be determined according to the opening angle of the nozzle cover.

[0019] In yet another embodiment, the angle limiting boss may be configured such that the angle at which the nozzle vanes are tilted in the horizontal direction increases as the opening angle of the nozzle cover increases.

[0020] In yet another embodiment, the air blowing device may further include: a supporting member disposed at one end of the interior of the nozzle cover and configured to support the nozzle cover in an open state.

[0021] In yet another embodiment, the air blowing device may further include: a locking member located at a portion of the air nozzle corresponding to the position of the support member. The locking member may be configured to fix the support member.

[0022] In yet another embodiment, the locking member may support the nozzle cover in such a manner that one end of the locking member is caught on at least one supporting tooth formed on the supporting member.

[0023] In yet another embodiment, the air blowing device may further include: a protruding member formed adjacent to the locking member; and a hinge member positioned adjacent to the support member and facing the protruding member. When the nozzle cover is fully opened, the protruding member may contact the hinge member to release the locking member from the support member.

[0024] In yet another embodiment, the air blowing device may further include: an elastic member provided on the rotation center axis of the nozzle cover and configured to apply elastic force to the nozzle cover so that the nozzle cover returns to the closed state.

[0025] In yet another embodiment, the air blowing device may further include: a controller configured to control the pressure and angle of the air discharged toward the windshield through the air nozzle.

[0026] In yet another embodiment, the controller may control the amount of compressed air discharged through the air nozzle based on the vehicle's driving environment. The vehicle's driving environment may include data on the vehicle's driving speed received from a speed sensor and data on the amount of rain detected by a rain sensor.

[0027] In yet another embodiment, upon receiving a user request to spray cleaning fluid, the controller controls the fan assembly to maximize the amount of compressed air discharged through the air nozzle.

[0028] In yet another embodiment, the controller may control the opening angle of the nozzle cover and the amount of discharged compressed air according to the driving environment of the vehicle to improve aerodynamic performance.

[0029] In yet another embodiment, the air blowing device may further include: a cleaning nozzle positioned adjacent to the air nozzle. The air nozzle may be configured to discharge compressed air, and the cleaning nozzle may be configured to spray cleaning liquid.

[0030] In yet another embodiment, the air blowing device may further include: a spring provided inside the nozzle housing and configured to apply an elastic force to the nozzle vane in a width direction of the vehicle.

[0031] In yet another embodiment, the housing may be located inside the cowl top assembly.

[0032] Other aspects and embodiments of the disclosure are discussed below.

[0033] It should be understood that the terms "vehicle" or "vehicular" or other similar terms as used herein generally include motor vehicles. Such motor vehicles may include: passenger vehicles including sport utility vehicles (SUVs), buses, trucks, and various commercial vehicles; watercraft including various ships and boats; aircraft, etc.; and alternative fuel (e.g., fuel derived from resources other than petroleum) vehicles including hybrid vehicles, electric vehicles, plug-in hybrid vehicles, and hydrogen-powered vehicles. As referred to herein, a hybrid vehicle is a vehicle that has two or more power sources, such as gasoline-powered and electric-powered vehicles.

[0034] The above-described and other features of the present disclosure are discussed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and other features of the present disclosure will be described in detail with reference to certain embodiments of the disclosure shown in the accompanying drawings, which are given below by way of illustration only and therefore do not limit the present disclosure, and in which:

[0036] Figure 1 is a perspective view of an air blowing device mounted to a cowl top assembly according to an embodiment of the present disclosure;

[0037] Figure 2 is a structural diagram of an air blowing device according to an embodiment of the present disclosure;

[0038] Figure 3 is a structural diagram of a fan assembly and an air nozzle of an air blowing device according to an embodiment of the present disclosure;

[0039] Figure 4 is a cross-sectional view of a nozzle vane according to an embodiment of the present disclosure;

[0040] Figure 5 is a cross-sectional view illustrating the angle of a nozzle vane set by an angle limiting boss according to an embodiment of the present disclosure;

[0041] Figures 6A to 6C is a view illustrating a coupling relationship between a support member and a locking member according to an opening angle of a nozzle cover according to an embodiment of the present disclosure;

[0042] Figure 7 is a view showing a coupling structure of a nozzle cover and an elastic member applying elastic force to the nozzle cover according to an embodiment of the present invention;

[0043] Figure 8 is a view illustrating the operation of a nozzle cover for improving aerodynamic performance of a vehicle according to an embodiment of the present disclosure; and

[0044] Figure 9 is a graph of data illustrating improved aerodynamic performance obtained by controlling the opening angle of the nozzle shroud according to an embodiment of the present disclosure.

[0045] It should be understood that the drawings are not necessarily drawn to scale, but rather present a somewhat simplified representation of various features illustrating the basic principles of the present disclosure. The specific design features of the present disclosure disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, are determined in part by the specific intended application and use environment.

[0046] Throughout the several figures of the drawings, reference numbers refer to the same or equivalent parts of the present disclosure. DETAILED DESCRIPTION

[0047] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present disclosure more thorough and complete and to more fully convey the scope of the present disclosure to those skilled in the art.

[0048] The terms “unit” and “component” used in the specification refer to units for processing at least one function or operation and can be implemented by hardware components, software components, or a combination thereof.

[0049] In addition, the terms “opening amount” and “opening angle” used in the specification indicate the degree of opening of the nozzle cover 430 and have the same meaning.

[0050] Furthermore, the terms “horizontal opening amount” and “horizontal opening angle” used in the specification refer to an angle at which the nozzle vane 420 is inclined in the width direction of the vehicle with respect to the length direction of the vehicle.

[0051] In addition, the term “closed state” of the nozzle cover 430 described in the specification refers to a state in which the discharge port of the nozzle housing 410 is covered by the nozzle cover 430 .

[0052] Furthermore, although the description herein describes the air blowing device as being located within the cowl top assembly, the present disclosure is not limited thereto. The air blowing device may be located in an area adjacent to the windshield, or may be located within the engine hood or on the roof of the vehicle. The description below describes the air blowing device as being located within the cowl top assembly.

[0053] The present disclosure relates to an air blowing device 100 configured to face a windshield 600, and more particularly to an air blowing device 100 configured to be disposed adjacent to the windshield 600 to remove foreign matter from the windshield 600 and improve aerodynamic performance of the vehicle according to a driving environment of the vehicle.

[0054] Figure 1 1 is a perspective view of an air blowing device 100 according to the present disclosure. The air blowing device 100 is located inside a cowl top assembly 500 disposed adjacent to a windshield 600. The air blowing device 100 includes a nozzle, and an outlet of the nozzle faces the windshield 600.

[0055] Specifically, the air blowing device 100 includes an air nozzle 400 located inside each end portion of the cowl top assembly 500 and facing the windshield 600. Air introduced into the side portions of the air blowing device 100 is compressed by the fan assembly 200. The compressed air flows along the duct 300 connecting the fan assembly 200 and the air nozzle 400. The compressed air is discharged toward the windshield 600 through the air nozzle 400.

[0056] The fan assembly 200 includes a shroud 240 configured to guide an introduced air flow and blades 230 configured to compress the air flowing along the shroud 240 .

[0057] In addition, the fan assembly 200 further includes a housing 210 having two opposite open ends. Air passing through the shroud 240 is compressed by the blades 230 rotatably coupled to the motor assembly 220. The compressed air flows toward the air nozzle 400 through the open end of the housing 210 coupled to the duct 300.

[0058] The controller 800 may include an electronic control unit (ECU) provided in the vehicle and is configured to receive information about the amount of rain detected by the rain sensor and information about the current driving speed of the vehicle measured by a speed sensor, an acceleration sensor, etc.

[0059] In addition, the controller 800 is configured to control driving of the motor assembly 220 to control the rotational force of the blades 230 of the fan assembly 200 .

[0060] Therefore, the controller 800 according to the present disclosure can control the amount of air introduced into the fan assembly 200 according to the driving environment of the vehicle. The controller 800 can control the degree to which the introduced air is compressed by controlling the driving force of the motor assembly 220.

[0061] In addition, upon receiving a user request to spray the washer fluid, the controller 800 according to the present disclosure can control the fan assembly 200 in response to the user input to spray the washer fluid to maximize the amount of compressed air. In this case, the controller 800 can perform control to maximize the amount of compressed air or the amount of exhausted air, or to maximize both the amount of compressed air and the amount of exhausted air.

[0062] Figure 2 and Figure 3 The connection relationship between the components of the blowing device 100 is shown.

[0063] As shown in the figure, the air blowing device 100 includes a fan assembly 200 fixed to a cowl top assembly 500 and a duct 300 connecting the fan assembly 200 and the air nozzle 400 to each other so that fluid flows between the fan assembly 200 and the air nozzle 400 .

[0064] As described above, the fan assembly 200 includes the housing 210 having two opposite open ends, the shroud 240 configured to guide air flow introduced into the housing 210 , and the blades 230 positioned adjacent to the shroud 240 and receiving rotational force from the motor assembly 220 .

[0065] In addition, the fan assembly 200 is configured so that air is introduced from the side of the vehicle. To this end, one open end of the housing 210 may be positioned adjacent to the side of the vehicle.

[0066] The housing 210 , which is positioned adjacent to a side of the vehicle, is coupled to the cover unit 250 to prevent the blades 230 from being exposed to the outside.

[0067] According to an embodiment of the present disclosure, the fan assembly 200 may be arranged in a width direction of the vehicle such that one open end of the housing 210 faces a side of the vehicle.

[0068] Air introduced into the housing 210 through one open end of the housing 210 flows along the shroud 240 and is compressed by the rotational force of the blades 230. The compressed air is discharged from the housing 210 through the opposite open end thereof.

[0069] Compressed air discharged from the housing 210 through opposite open ends of the housing 210 flows into the duct 300 through one end of the duct 300. The opposite end of the duct 300 is coupled to one end of the nozzle housing 410 of the air nozzle 400.

[0070] The nozzle housing 410 according to the present disclosure may include a nozzle for discharging compressed air in the same direction as one end of the nozzle housing 410 coupled to the duct 300. Specifically, the nozzle housing 410 includes an opening formed at a lower end of the nozzle housing 410 to be coupled to the duct 300. The nozzle housing 410 further includes a nozzle provided at an upper end of the nozzle housing 410, the nozzle facing the windshield 600 and discharging compressed air toward the windshield 600.

[0071] The blades 230 are configured so that the rotation speed of the blades 230 is controlled by the controller 800. According to an embodiment of the present disclosure, the driving of the motor assembly 220 is controlled by the controller 800, and the rotation speed of the blades 230 rotated by the motor assembly 220 is controlled. In this way, the pressure of the compressed introduced air is controlled according to the driving environment of the vehicle.

[0072] Here, the nozzle refers to a space where compressed air is discharged from the nozzle housing 410 toward the windshield 600. Hereinafter, the term "nozzle" may be used to refer to the air nozzle 400.

[0073] The air nozzle 400 includes a nozzle vane 420 disposed in the discharge space inside the nozzle housing 410 to guide the air flow in a horizontal direction. The air nozzle 400 also includes a nozzle cover 430 configured to open when the pressure of the discharged compressed air is greater than or equal to a predetermined value.

[0074] At least one nozzle vane 420 may be provided inside the nozzle housing 410. The angle at which the nozzle vane 420 is tilted in the horizontal direction may be adjusted by an angle limiting boss 460 located on the inner surface of the nozzle cover 430.

[0075] In addition, the nozzle vane 420 may be coupled to a spring fixed to the inside of the nozzle housing 410. The spring applies elastic force to the nozzle vane 420, biasing the nozzle vane 420 in one direction. The angle limiting boss 460 limits the angle at which the nozzle vane 420 can be tilted by applying the elastic force of the spring to the nozzle vane 420.

[0076] The angle-limiting boss 460 includes an inclined surface having a predetermined angle, so that the horizontal angle of the nozzle vane 420 gradually increases as the distance from the windshield increases. The horizontal angle of the nozzle vane 420 is limited by contact between the inclined surface of the angle-limiting boss 460 and the nozzle vane 420. The horizontal tilt angle of the nozzle vane 420 can be determined by the vertical opening angle of the nozzle cover 430.

[0077] The washer fluid nozzle 700 is provided at a portion of the cowl top assembly 500 adjacent to the air nozzle 400. Therefore, the washer fluid is sprayed toward the windshield 600 together with the compressed air discharged from the air nozzle 400.

[0078] A plurality of air nozzles 400 may be provided, and a cleaning liquid nozzle 700 may be provided between the air nozzles 400. The air blowing device 100 according to an embodiment of the present disclosure may include two air nozzles 400 and three cleaning liquid nozzles 700.

[0079] The nozzle cover 430 is located in the opening of the nozzle housing 410 and is hinged to the upper end of the nozzle housing 410. When the pressure of the discharged compressed air is greater than or equal to a predetermined value, the nozzle cover 430 opens. The opening angle of the nozzle cover 430 increases in proportion to the increase in the pressure of the discharged air.

[0080] Figure 4 It is along Figure 3 The side cross-sectional view taken along line AA in FIG. 1 shows the coupling structure of the nozzle vane 420 . Figure 5 It is along Figure 3 The side cross-sectional view taken along line DD in FIG. 4 shows a coupling relationship between the nozzle vane 420 and the angle limiting boss 460 for limiting the angle at which the nozzle vane 420 is tilted in the horizontal direction.

[0081] As shown in the figure, a plurality of nozzle vanes 420 are arranged in the nozzle housing 410 along the length direction of the nozzle housing 410, which is substantially the same as the direction in which compressed air flows in the nozzle housing 410. Each nozzle vane 420 is coupled to a spring fixed to the inner surface of the nozzle housing 410. The spring applies an elastic force to the corresponding nozzle vane 420, causing one end of the nozzle vane 420 to point outward relative to the length direction of the nozzle housing 410.

[0082] The spring applies elastic force in the width direction of the vehicle to an end portion of the nozzle vane 420 relatively close to the windshield.

[0083] In an embodiment of the present disclosure, two nozzle vanes 420 are provided in the nozzle housing 410, and two springs are fixed to the inner surface of the nozzle housing 410. In this case, each of the two springs applies elastic force to a corresponding one of the two nozzle vanes 420, so that the ends of the two nozzle vanes 420 relatively close to the windshield are biased toward the corresponding ends of the nozzle.

[0084] The angle limiting boss 460 located on the inner surface of the nozzle cover 430 is configured to contact the end of each nozzle vane 420 opposite to the end of each nozzle vane 420 to which the elastic force of the spring is applied, thereby limiting the angle at which each nozzle vane 420 is biased by the elastic force of the spring.

[0085] As described above, the angle limiting boss 460 is located on the inner surface of the nozzle cover 430, and the nozzle cover 430 is configured to open upward when the pressure of the discharged compressed air is greater than or equal to a predetermined value. The angle limiting boss 460 is formed to have an inclined shape so that when the opening angle of the nozzle cover 430 increases, the angle at which the nozzle vane 420 is inclined relative to the longitudinal direction of the vehicle increases.

[0086] In addition, the angle limiting boss 460 is formed so that the height of the angle limiting boss 460 gradually increases toward the inside of the discharge port of the nozzle. Therefore, even when the opening angle of the nozzle cover 430 increases, the angle limiting boss 460 always maintains contact with the nozzle vane 420, thereby limiting the angle of the nozzle vane 420.

[0087] In summary, the nozzle vane 420 is coupled to the spring to be always biased in one direction, and is always in contact with the angle limiting boss 460 of the nozzle cover 430 to maintain a constant angle.

[0088] Furthermore, the angle-limiting boss 460 can be formed so that the angle at which the nozzle vanes 420 are tilted relative to the longitudinal direction of the vehicle increases in proportion to the increase in the opening angle of the nozzle cover 430. In other words, if two angle-limiting bosses 460 are provided to correspond to the two nozzle vanes 420, the two angle-limiting bosses 460 are formed so that each of their contact portions contacts the end of a corresponding one of the two nozzle vanes 420 and gradually space apart from each other in proportion to the increase in the opening angle of the nozzle cover 430. Furthermore, to ensure that the nozzle vanes 420 and the angle-limiting boss 460 maintain contact even when the opening angle of the nozzle cover 430 increases, the angle-limiting boss 460 is formed so that its height gradually increases toward the interior of the nozzle outlet.

[0089] Figures 6A to 6C It is along Figure 3 The sectional views taken along lines BB and CC in FIG. 4 show the connection relationship between the support member 440 located at the end of the rear surface of the nozzle cover 430 and the latching member 450 located inside the nozzle housing 410 to correspond to the support member 440 according to the opening angle of the nozzle cover 430.

[0090] The air blowing device 100 according to an embodiment of the present disclosure includes a support member 440 located at a portion of the rear surface of the nozzle cover 430 that does not interfere with the angle limiting boss 460. The support member 440 is located at each of two opposite ends of the nozzle cover 430.

[0091] The locking member 450 is located at a portion of the inner surface of the nozzle housing 410 corresponding to the position of the support member 440. In a state in which the nozzle cover 430 is opened, the support member 440 and the locking member 450 contact each other to prevent vibration from occurring.

[0092] The support member 440 may include a plurality of support teeth 442. One end of the locking member 450 may be selectively caught on one of the support teeth 442. Specifically, the locking member 450 is caught on one of the support teeth 442 of the support member 440 according to the opening degree of the nozzle cover 430 relative to the upper end of the nozzle housing 410.

[0093] like Figure 6A As shown, the air blowing device 100 according to the embodiment of the present disclosure includes two supporting teeth 442. When the opening amount of the nozzle cover 430 is 50%, the locking member 450 is stuck on the first supporting tooth 442.

[0094] In addition, if Figure 6B As shown, when the opening amount of the nozzle cover 430 is 70%, the locking member 450 is caught on the second supporting teeth 442 , thereby preventing the vibration and noise of the nozzle cover 430 from occurring.

[0095] In other words, since the locking member 450 is fixed to the inside of the nozzle housing 410 and the support member 440 rotates integrally with the nozzle cover 430 , the locking member 450 is selectively caught on one of the support teeth 442 according to the opening amount of the nozzle cover 430 .

[0096] In summary, according to an embodiment of the present disclosure, two supporting teeth 442 are formed, and the locking member 450 is caught on one of the two supporting teeth 442 according to the opening amount of the nozzle cover 430 .

[0097] Figure 6C The coupling relationship between the support member 440 and the locking member 450 is shown when the nozzle cover 430 is opened at the maximum angle.

[0098] When the nozzle cover 430 is opened at a maximum angle or a predetermined angle or more, the hinge member 441 positioned adjacent to the support member 440 comes into contact with the protrusion member 451 formed adjacent to the locking member 450 .

[0099] The hinge member 441 is positioned adjacent to the support member 440 in the width direction of the vehicle. The protruding member 451 is adjacent to the locking member 450 at a position corresponding to the hinge member 441 and is formed integrally with the locking member 450.

[0100] The hinge member 441 protrudes downward further than the supporting teeth 442 formed at one end of the supporting member 440 and moves on a plane corresponding to the protruding member 451. When the nozzle cover 430 is opened at a predetermined angle or more, the hinge member 441 and the protruding member 451 contact each other, so that the locking member 450 is released from the supporting teeth 442.

[0101] When nozzle cover 430 is opened to improve the aerodynamic performance of the vehicle, the opening amount of nozzle cover 430 can be set so that hinge member 441 and protruding member 451 contact each other. In addition, when it is desired to spray the washer fluid, the opening amount of nozzle cover 430 can be set so that hinge member 441 and protruding member 451 contact each other.

[0102] Furthermore, when nozzle cover 430 is closed, the locking member 450 is released from the support member 440 by contact between the hinge member 441 and the protruding member 451. When compressed air is discharged, nozzle cover 430 is opened to a predetermined angle or greater. Thereafter, when the amount of discharged air is controlled to zero, nozzle cover 430 covers the discharge port of air nozzle 400. In other words, the opening angle of nozzle cover 430 becomes 0 degrees.

[0103] Figure 7 4 is an enlarged view illustrating a structure in which the nozzle cover 430 is coupled to the nozzle housing 410 according to an embodiment of the present disclosure.

[0104] As shown in the drawings, the nozzle cover 430 is hinged to the nozzle housing 410. To this end, the nozzle cover 430 may include a hinge shaft extending in the width direction of the vehicle and an elastic member 431 configured to surround the hinge shaft.

[0105] The elastic member 431 is configured to apply elastic force to the nozzle cover 430 in a direction in which the nozzle cover 430 is closed. Therefore, when the locking member 450 is released from the supporting member 440, the nozzle cover 430 smoothly covers the discharge port of the air nozzle 400.

[0106] Figure 8 is a cross-sectional view illustrating an opened structure of a nozzle cover 430 for improving aerodynamic performance of a vehicle according to another embodiment of the present disclosure.

[0107] As shown in the drawings, the nozzle cover 430 is located between the cowl top assembly 500 and the windshield 600 that face each other. The nozzle cover 430 is configured to improve aerodynamic performance in response to air resistance applied to the upper surface of the windshield 600.

[0108] A high drag coefficient (Cd) is generated due to the height difference between the vehicle's hood, cowl top assembly 500, and windshield 600. Therefore, the opening angle of the nozzle cover 430 is controlled to improve the drag coefficient of the area from the hood to the windshield 600.

[0109] The controller 800 according to the present disclosure calculates the drag coefficient generated at the hood and the windshield 600 based on the speed of the vehicle received from a speed sensor, an acceleration sensor, etc., and increases the opening angle of the nozzle cover 430 to minimize the drag coefficient.

[0110] In addition, the controller 800 controls the opening angle of the nozzle cover 430 according to the speed of the vehicle. In this case, the controller 800 can control to apply a driving force to the nozzle cover 430 to forcibly open the nozzle cover 430, or can control the amount of discharged compressed air by driving the blades 230 of the fan assembly 200 to open the nozzle cover 430.

[0111] In order to obtain an optimal drag coefficient, compressed air is discharged through the air nozzle 400 while the nozzle cover 430 is opened. In detail, the compressed air discharged from the air nozzle 400 changes the flow direction of the air flowing on the outer surface of the windshield 600, thereby preventing the windshield 600 from generating additional flow resistance, thereby reducing the drag coefficient.

[0112] Figure 9 4 is a graph showing data for obtaining a minimum drag coefficient by changing the opening angle of the nozzle cover 430 according to the speed of the vehicle.

[0113] As shown in the figure, when the vehicle is traveling at a constant speed, the angle can be set to obtain the minimum drag coefficient. The controller 800 calculates the optimal opening angle of the nozzle cover 430 for obtaining the minimum drag coefficient and opens the nozzle cover 430 based on the calculated opening angle, thereby improving the aerodynamic performance of the vehicle.

[0114] As apparent from the above description, the air blowing device according to the present disclosure has the following effects.

[0115] Since the pressure and angle of the discharged compressed air are controlled according to the driving environment of the vehicle, a clear view can be provided to the driver.

[0116] In addition, since vibration and noise of the nozzle cover caused by air discharge are reduced, comfort can be provided to the occupants of the vehicle.

[0117] In addition, the aerodynamic performance of the vehicle can be improved by controlling the opening angle of the nozzle cover according to the driving environment of the vehicle.

[0118] The foregoing specific embodiments of the present disclosure are merely illustrative. The foregoing is intended to illustrate and describe embodiments of the present disclosure, and the present disclosure may be used in various other combinations, modifications, and environments. In other words, the present disclosure may be modified or changed within the scope of the concept of the present disclosure disclosed herein, the scope equivalent to the foregoing, and / or the scope of technology or knowledge known in the art. The above embodiments are intended to describe the best mode for implementing the technical ideas of the present disclosure, and various modifications required for the specific applications and uses of the present disclosure are also possible. Therefore, the foregoing specific embodiments are not intended to limit the present disclosure to the disclosed modes. The appended claims should be interpreted as also including other modes.

Claims

1. A blowing device comprising: a fan assembly positioned adjacent to the windshield; as well as an air nozzle connected to the fan assembly through a pipe so that fluid flows between the fan assembly and the air nozzle, and the air nozzle faces the windshield, An angle limiting boss, which is arranged on the inner surface of the nozzle cover and controls the tilt angle of the nozzle blade in the horizontal direction. The air nozzle adjusts the pressure and angle of the air discharged toward the windshield according to the driving environment of the vehicle. Wherein, the air nozzle comprises: a nozzle housing including an opening connected to the duct and facing the windshield; a nozzle for discharging the air introduced from the fan assembly toward the opening; Nozzle vanes, which direct the flow of exhaust air; and The nozzle cover opens when the pressure of the discharged air is greater than or equal to a predetermined value.

2. A blowing device comprising: Supporting members; a fan assembly positioned adjacent to the windshield; as well as an air nozzle connected to the fan assembly through a pipe so that fluid flows between the fan assembly and the air nozzle, and the air nozzle faces the windshield, Wherein, the air nozzle comprises: a nozzle housing including an opening connected to the duct and facing the windshield; a nozzle for discharging the air introduced from the fan assembly toward the opening; Nozzle vanes, which direct the flow of exhaust air; and The nozzle cover opens when the pressure of the discharged air is greater than or equal to a predetermined value, The supporting member is provided at the nozzle cover and supports the nozzle cover in an open state.

3. A blowing device comprising: spring; a fan assembly positioned adjacent to the windshield; as well as an air nozzle connected to the fan assembly through a pipe so that fluid flows between the fan assembly and the air nozzle, and the air nozzle faces the windshield, The air nozzle adjusts the pressure and angle of the air discharged toward the windshield according to the driving environment of the vehicle. Wherein, the air nozzle comprises: a nozzle housing including an opening connected to the duct and facing the windshield; a nozzle for discharging the air introduced from the fan assembly toward the opening; Nozzle vanes, which direct the flow of exhaust air; and The nozzle cover opens when the pressure of the discharged air is greater than or equal to a predetermined value, The spring is provided inside the nozzle housing and applies elastic force to the nozzle vane in a width direction of the vehicle.

4. The air blowing device according to claim 3, wherein: An opening angle of the nozzle cover is determined according to a driving speed of the vehicle.

5. The air blowing device according to claim 3, further comprising: An angle limiting boss is provided on the inner surface of the nozzle cover to control the tilt angle of the nozzle blade in the horizontal direction. The angle at which the nozzle blades are inclined in the horizontal direction is determined according to the opening angle of the nozzle cover.

6. The air blowing device according to claim 5, wherein: The angle limiting boss is configured such that the angle at which the nozzle vanes are inclined in the horizontal direction increases as the opening angle of the nozzle cover increases.

7. The air blowing device according to claim 3, further comprising: A support member is provided at one end of the nozzle cover and supports the nozzle cover in an open state.

8. The air blowing device according to claim 7, further comprising: A locking member is located at a portion of the air nozzle corresponding to the position of the support member and fixes the support member.

9. The air blowing device according to claim 8, wherein: The locking member supports the nozzle cover in such a manner that one end of the locking member is caught on at least one supporting tooth formed on the supporting member.

10. The air blowing device according to claim 8, further comprising: a protruding member formed adjacent to the locking member; as well as a hinge member positioned adjacent to the support member and facing the protruding member, When the nozzle cover is fully opened, the protruding member contacts the hinge member so that the locking member is released from the supporting member.

11. The air blowing device according to claim 3, further comprising: An elastic member is provided on the rotation center axis of the nozzle cover and applies elastic force to the nozzle cover so that the nozzle cover returns to a closed state.

12. An air blowing device comprising: controller, a fan assembly positioned adjacent to the windshield; as well as an air nozzle connected to the fan assembly through a pipe so that fluid flows between the fan assembly and the air nozzle, and the air nozzle faces the windshield, An angle limiting boss, which is arranged on the inner surface of the nozzle cover and controls the tilt angle of the nozzle blade in the horizontal direction. The air nozzle adjusts the pressure and angle of the air discharged toward the windshield according to the driving environment of the vehicle. The controller controls the pressure and angle of air discharged toward the windshield through the air nozzle, and controls the opening angle of the nozzle cover and the amount of compressed air discharged according to the driving environment of the vehicle to improve aerodynamic performance. Wherein, the air nozzle comprises: a nozzle housing including an opening connected to the duct and facing the windshield; a nozzle for discharging the air introduced from the fan assembly toward the opening; Nozzle vanes, which direct the flow of exhaust air; and The nozzle cover opens when the pressure of the discharged air is greater than or equal to a predetermined value.

13. The air blowing device according to claim 12, wherein: The fan assembly comprises: case; a motor assembly located within the housing; a blade receiving rotational force from the motor assembly; and The air guide shroud guides the flow of air drawn in by the rotation of the blades.

14. The air blowing device according to claim 13, wherein The shell is located inside the front cowl upper cover assembly.

15. The air blowing device according to claim 12, wherein The controller controls the amount of compressed air discharged through the air nozzle based on the driving environment of the vehicle, and The driving environment of the vehicle includes data of the driving speed of the vehicle received from a speed sensor and data of the amount of rain detected by a rain sensor.

16. The air blowing device according to claim 12, wherein: Upon receiving a user request to spray cleaning fluid, the controller controls the fan assembly to maximize the amount of compressed air discharged through the air nozzle.

17. The air blowing device according to claim 12, further comprising: A cleaning nozzle is positioned adjacent to the air nozzle, the air nozzle is used to discharge compressed air, and the cleaning nozzle is used to spray cleaning fluid.

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