Ventilation device for a vehicle

Abstract

The present invention relates to a ventilation device for a vehicle, which includes a main vent and an auxiliary vent, which are divided by a partition wall and combined in a single duct, a plurality of horizontal vanes installed at a position behind the main vent and the auxiliary vent, and a volume control vane included in the plurality of horizontal vanes for distributing a volume of air discharged to the inside of the vehicle through the main vent and a volume of air discharged to the inside of the vehicle through the auxiliary vent. The ventilation device can ensure an internal exhaust air volume, adjust an air direction, ensure a duct installation space, and redistribute an air leakage volume.

Description

TECHNICAL FIELD

[0001] The present invention relates to a ventilation device for a vehicle, and more particularly, to a ventilation device in which a main vent and a sub-vent are combined in a single duct. BACKGROUND

[0002] Generally, a vent for a vehicle, which discharges air for heating and cooling generated due to the operation of an air conditioning system to the inside of a vehicle, includes a central vent installed on a center fascia between the front side of a driver's seat and the front side of a co-driver's seat, and side vents installed on the front impact pads of the driver's seat and the co-driver's seat.

[0003] Generally, one central vent is installed at the right front position of the driver's seat and the left front position of the co-driver's seat, respectively, and one side vent is installed at the left front position of the driver's seat and the right front position of the co-driver's seat, respectively.

[0004] These vents are manufactured in various forms for each vehicle type in consideration of functions to secure the amount of air and adjust the direction of air, as well as design factors.

[0005] REFERENCE Figure 1 With reference to the related art, the arrangement in which the upper vent 20 and the lower vent 30 are vertically spaced apart from each other and installed at the air discharge position of the duct 10 can be applied as one form of a ventilation device.

[0006] To this end, since the duct 10 should be configured to branch into an upper duct 11 on which the upper vent 20 is installed and a lower duct 12 on which the lower vent 30 is installed, it is inevitable to increase the size and volume of the duct 10, so that there is a problem in design constraints for securing a duct installation space.

[0007] In addition, the upper vent 20 and the lower vent 30 should be separately provided in total eight or more, and components such as a flap, a knob, and a damper constituting the upper vent 20 and the lower vent 30 are required, respectively. Therefore, there is a problem in that the number of components of the entire vent is increased, which can cause an increase in assembly man-hours and production costs. SUMMARY

[0008] In one aspect, the present invention provides a ventilation device for a vehicle, which is capable of easily securing the amount of internal air discharge according to functions, smoothly adjusting the direction of air, minimizing the occurrence of design constraints to secure a duct installation space, and improving the quality of a vent through the distribution of air leakage amount, by configuring a main vent and a sub-vent in a single duct.

[0009] The objects of the present application are not limited to the above-mentioned objects, and other objects of the present application not mentioned can be understood by the following description and will be clearly understood by the embodiments of the present application. Furthermore, the objects of the present application can be achieved by the means described in the appended claims and combinations thereof.

[0010] In an exemplary embodiment, the present application provides a ventilation device for a vehicle, which includes: an air duct, a partition wall, a plurality of horizontal vanes, and a volume control vane; the partition wall is installed on an exhaust portion of the air duct, and is configured to divide the exhaust portion into a main vent and an auxiliary vent; the plurality of horizontal vanes are installed at a position behind the main vent and the auxiliary vent in the inside of the air duct, so as to be vertically pivotable due to manipulation of a main knob, and are configured to adjust a vertical air direction; the volume control vane is installed to be included in the plurality of horizontal vanes (i.e., one of them), and is configured to distribute a volume of air discharged to the inside of the vehicle through the main vent and a volume of air discharged to the inside of the vehicle through the auxiliary vent, wherein the volume control vane includes a flat vane arranged to be parallel to the plurality of horizontal vanes, and a guide vane bent downward so as to extend from a rear end portion of the flat vane at a predetermined angle.

[0011] In the exhaust portion of the air duct, the partition wall can be installed to be closer to the auxiliary vent than the main vent, so that a size of the main vent can be formed to be greater than a size of the auxiliary vent.

[0012] The volume control vane can be located behind the partition wall and pivot at an angle for discharging air upward; when the volume control vane is arranged in a horizontal state, the flat vane can be located at a position higher than that of the partition wall, and when the volume control vane is pivoted at an angle for discharging air downward, the flat vane can be positioned to face a rear distal end of the partition wall.

[0013] Preferably, when the plurality of horizontal vanes including the volume control vane are pivoted at an angle for discharging air upward, a ratio of a length from a rear distal end of the guide vane to a top surface of the air duct to a length from the rear distal end of the guide vane to a bottom surface of the air duct is set to a ratio of 95:5, and the plurality of horizontal vanes including the volume control vane can be pivoted upward at an angle of about 25° (± 2°) so as to discharge air upward in a state of being arranged horizontally.

[0014] Preferably, when the plurality of horizontal vanes including the volume control vane are arranged in a horizontal state so as to discharge air in a linear direction, a ratio of a length from a rear distal end of the guide vane to a top surface of the air duct to a length from the rear distal end of the guide vane to a bottom surface of the air duct can be set to a ratio of 80:20.

[0015] Preferably, when the plurality of horizontal wings including the air volume control wing are pivoted at an angle for discharging air downward, a ratio of a length from the rear distal end of the guide wing to a top surface of the air duct to a length from the rear distal end of the guide wing to a bottom surface of the air duct can be set to a ratio of 65:35. The plurality of horizontal wings including the air volume control wing can be pivoted downward at an angle of about 25° (± 2°) so as to discharge air downward in a horizontally arranged state.

[0016] A first nozzle cover having a main knob mounted thereon can be disposed at an outlet of a main vent, and a second nozzle cover having a dummy knob mounted thereon can be disposed at an auxiliary vent.

[0017] The main knob can include a knob body slidably mounted on the first nozzle cover, and a knob strip formed in a rear end portion of the knob body and connected to one of the plurality of horizontal wings.

[0018] The first nozzle cover can include a quadrangular outer nozzle frame having pivot shafts formed on top and bottom surfaces of the outer nozzle frame and engaged with upper and lower portions of the main vent, a quadrangular inner nozzle frame arranged to be spaced apart from an inner surface of the outer nozzle frame, a plurality of connection strips configured to integrally connect the outer nozzle frame to the inner nozzle frame, and a main knob mounting strip connected between upper and lower portions of the inner nozzle frame.

[0019] Preferably, front and rear lengths of upper and lower strips of the inner nozzle frame are formed to be smaller than front and rear lengths of left and right strips of the inner nozzle frame, thereby securing directionality of a vertical air direction of air.

[0020] Other aspects and preferred embodiments of the present application are discussed below. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other features of the present application will now be described in detail with reference to certain exemplary embodiments thereof, which are illustrated in the accompanying drawings, giving by way of example only, wherein:

[0022] Figure 1 FIG. 1 is a schematic view showing a ventilation device including an upper vent and a lower vent;

[0023] Figure 2 FIG. 2 is a side sectional view showing a ventilation device for a vehicle according to the present application;

[0024] Figure 3is a side sectional view showing a state in which the air ventilation device for a vehicle according to the present application operates to adjust the internal air discharge direction to an upward direction;

[0025] Figure 4 is a side sectional view showing a state in which the air ventilation device for a vehicle according to the present application operates to adjust the internal air discharge direction to a linear direction (neutral direction);

[0026] Figure 5 is a side sectional view showing a state in which the air ventilation device for a vehicle according to the present application operates to adjust the internal air discharge direction to a downward direction;

[0027] Figure 6 is a side sectional view showing upward pivot angles of a plurality of horizontal vanes and a volume control vane included in the air ventilation device for a vehicle according to the present application to adjust the internal air discharge direction to an upward direction;

[0028] Figure 7 is a side sectional view showing downward pivot angles of a plurality of horizontal vanes including a volume control vane included in the air ventilation device for a vehicle according to the present application to adjust the internal air discharge direction to a downward direction;

[0029] Figure 8 is a schematic view showing a flow direction of an air leakage amount when a partition wall is not present in a structure of the air ventilation device for a vehicle according to the present application;

[0030] Figure 9 is a side sectional view showing an air leakage amount allocated to flow due to the partition wall of the structure of the air ventilation device for a vehicle according to the present application;

[0031] Figure 10 is a perspective view showing a first nozzle cover of the structure of the air ventilation device for a vehicle according to the present application;

[0032] Figure 11 is a schematic view showing a result of measuring a cooling effect according to a front-rear length of the first nozzle cover in the structure of the air ventilation device for a vehicle according to the present application;

[0033] Figure 12 is a schematic view showing a structure for vertical pivoting of a plurality of horizontal vanes including a volume control vane in the structure of the air ventilation device for a vehicle according to the present application.

[0034] It should be appreciated that the accompanying drawings are not drawn to scale, but are merely a proper simplification of various preferred features of the basic principles of the present application. The specific design features of the present application disclosed herein, including, for example, specific dimensions, directions, positions, and shapes will be determined in part by the specific circumstances of the particular application and use.

[0035] In the drawings, like reference numerals refer to like or identical parts throughout the several views of the drawings and illustrate the same or functionally similar components of the application. DETAILED DESCRIPTION

[0036] It should be understood that the terms "vehicle" or "vehicular" or other similar terms used herein generally include motor vehicles, such as passenger cars, including sport utility vehicles (SUVs), minivans, full-size vans, various commercial vehicles, passenger cars, including various boats, ships, aircraft, etc., and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., those powered by fuels other than fossil fuels). As used herein, a hybrid vehicle is a vehicle having two or more power sources, such as a vehicle having both gasoline power and electric power.

[0037] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Throughout this specification, the word "comprise," or variations such as "comprises" or "comprising," will be understood to imply the inclusion of a stated element, but not the exclusion of any other element. In addition, the terms "unit," "device," "component," and "module" described in the specification mean units for performing at least one function or operation and can be implemented by hardware components or software components and combinations thereof.

[0038] Further, the control logic of the present application can be implemented as non-transitory computer readable medium on a computer readable medium containing executable program instructions executed by a processor, controller, and / or the like. Examples of computer readable mediums include, but are not limited to, ROM, RAM, compact discs (CDs)-ROM, magnetic tapes, floppy disks, flash memories, smart cards, and optical data storage devices. The computer readable medium can also be distributed over network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion, e.g., as being stored and executed in the remote information server or a controller area network (CAN) bus.

[0039] Hereinafter, exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0040] Figure 2 is a side sectional view showing a ventilation device for a vehicle according to the present application, and reference numeral 100 denotes an air duct.

[0041] The air duct 100 is a path through which air generated due to operation of an air conditioning device flows toward the inside of the vehicle, and is formed in a single pipe structure.

[0042] In particular, a partition wall 102 is installed in an exhaust portion 101 (a distal end portion of the air duct 100 extending toward the inside of the vehicle) in the air duct 100, and divides the exhaust portion 101 into a main vent 110 and an auxiliary vent 120.

[0043] For example, both side end portions of the partition wall 102 are installed on side walls of the exhaust portion 101 of the air duct 100, so that the main vent 110 and the auxiliary vent 120 can be divided into separate exhaust spaces due to the partition wall 102.

[0044] The main vent 110 and the auxiliary vent 120 can be arranged in a vertical direction or arranged side by side with each other in a left-right direction.

[0045] Preferably, in order to form the size of the main vent 110 to be larger than the size of the auxiliary vent 120, the partition wall 102 is installed at a position closer to the auxiliary vent 120 than the main vent 110 in the exhaust portion 101 of the air duct 100.

[0046] Due to operation of a main knob 132, a plurality of horizontal vanes 130 for adjusting the direction of air in a vertical direction are arranged to be pivoted vertically at a position behind the main vent 110 and the auxiliary vent 120 in the air duct 100.

[0047] For example, as shown in Figure 12 , the plurality of horizontal vanes 130 are pivotally hingedly coupled to a link mechanism 134, one connecting link 136 is hingedly coupled to side rear end portions of the plurality of horizontal vanes 130 to simultaneously pivot the plurality of horizontal vanes 130, and the main knob 132 is connected to one of the plurality of horizontal vanes 130.

[0048] Therefore, since all of the plurality of horizontal vanes 130 are hingedly coupled to one connecting link 136, when the main knob 132 is vertically manipulated, the plurality of horizontal vanes 130 can be pivoted vertically about the hingedly coupled point of the link mechanism 134.

[0049] In particular, one of the plurality of horizontal vanes 130 is employed as a wind volume control vane 140 that distributes the amount of wind exhausted to the inside through the main vent 110 and the amount of wind exhausted to the inside through the auxiliary vent 120.

[0050] To this end, the air volume control fin 140 includes a flat fin 142 arranged in parallel to the plurality of horizontal fins 130 and a guide fin 144 bent downward at a predetermined angle from a rear end portion of the flat fin 142, thereby extending therefrom.

[0051] In this case, the air volume control fin 140 is pivotably located in the rear of the partition wall 102 in the vertical direction.

[0052] Therefore, when the air volume control fin 140 is pivoted at an angle for discharging air upward, the flat fin 142 of the air volume control fin 140 is arranged to be inclined upward at a position higher than the partition wall 102, and at the same time, the guide fin 144 is arranged at a position lower than the partition wall 102, so that air can be mainly guided toward the main vent 110.

[0053] On the other hand, when the air volume control fin 140 is pivoted at an angle for discharging air downward, the flat fin 142 of the air volume control fin 140 is arranged at a position facing the rear end of the partition wall 102, and at the same time, the guide fin 144 is arranged at a position higher than the partition wall 102, so that the air volume guided toward the auxiliary vent 120 can be increased.

[0054] Reference Figure 10 The first nozzle cover 150 on which the main knob 132 is mounted is installed at the outlet of the main vent 110 to be pivotable in the left-right direction, and the second nozzle cover 160 on which the dummy knob 162 is mounted is fixedly installed on the auxiliary vent 120.

[0055] Preferably, as Figure 10 shown, the first nozzle cover 150 includes a quadrangular outer nozzle frame 152 having pivot shafts 151 formed on the top and bottom surfaces thereof and engaged with the upper and lower portions of the main vent 110, a quadrangular inner nozzle frame 153 arranged to be spaced apart from the inner surface of the outer nozzle frame 152, a plurality of connection bars 154 configured to be integrally connected between the outer nozzle frame 152 and the inner nozzle frame 153, and a main knob mounting bar 155 connected between the upper bar 153-1 and the lower bar 153-2 of the inner nozzle frame 153.

[0056] Therefore, when the user holds the main knob 132 mounted on the main knob mounting bar 155 and moves it to the left or right, the first nozzle cover 150 is pivoted to the left or right about the pivot shafts 151, so that the internal discharge air direction of air can be adjusted in the left or right direction.

[0057] In this case, the left and right bars 153-3 and 153-4 of the inner nozzle frame 153 of the first nozzle cover 150 guide the internal discharge air direction of air in the left or right direction, and at the same time, function to secure the directionality of the air direction in the left and right directions.

[0058] Therefore, in order to secure the function of guiding the left and right air directions and to secure the directionality of the left and right air directions of air, the front and rear lengths (parts indicated by c and d in Figure 10 , respectively) of the left and right bars 153-3 and 153-4 of the inner nozzle frame 153 can each be formed to be 15 mm or more, but considering the assembly space of the first nozzle cover 150, it is preferable that each of the front and rear lengths be formed to be 15 mm.

[0059] At the same time, the internal discharge air direction of air is adjusted upward or downward due to the plurality of horizontal vanes 130 including the air volume control vane 140, and thus the upper and lower bars 153-1 and 153-2 of the inner nozzle frame 153 function as resistance to reduce the directionality of the vertical air direction of air.

[0060] In order to solve the above problem, the front and rear lengths (parts indicated by a and b in Figure 10 , respectively) of the upper and lower bars 153-1 and 153-2 of the inner nozzle frame 153 are formed to be smaller than the front and rear lengths of the left and right bars 153-3 and 153-4 of the inner nozzle frame 153, in order to secure the directionality of the vertical air direction of air.

[0061] Referring to Figure 11 , the front and rear lengths of each of the upper and lower bars 153-1 and 153-2 of the inner nozzle frame 153 constituting the first nozzle cover 150 were formed to be 15.4 mm, 12.9 mm, and 10.4 mm, respectively, the same air volume passed through the first nozzle cover 150, and then a cooling influence test was performed to measure the internal temperature of the vehicle. As a result, it could be confirmed that the greater the front and rear lengths of the upper and lower bars 153-1 and 153-2 of the inner nozzle frame 153, the higher the measured internal temperature.

[0062] These test results indicate that the front and rear lengths of the upper and lower bars 153-1 and 153-2 of the inner nozzle frame 153 affect the cooling of the interior of the vehicle.

[0063] Therefore, in order to secure the directionality of the vertical air direction of air, the front and rear lengths (parts indicated by a and b in Figure 10The front and rear lengths of the portions indicated by a and b can each be formed to be 10 mm or less, but considering the assembly space of the first nozzle cover 150, it is preferable that each of the front and rear lengths be formed to be 10 mm.

[0064] Hereinafter, the operation flow of the ventilation device for a vehicle according to the present application having the above configuration will be described.

[0065] Adjustment of air in an upward wind direction

[0066] Figure 3 FIG. 7 is a side sectional view showing a state in which the ventilation device for a vehicle according to the present application operates to adjust the internal discharge direction of air to an upward direction, Figure 6 FIG. 8 is a side sectional view showing the upward pivot angle of a plurality of horizontal vanes including a volume control vane to adjust the internal discharge direction of air to an upward direction.

[0067] First, as described above with reference to Figure 12 When the user manipulates the main knob 132 upward, the plurality of horizontal vanes 130 can pivot upward around the hinge coupling point of the link mechanism 134 since all of the plurality of horizontal vanes 130 are hinge-coupled to one connecting link 136.

[0068] In this case, the main knob 132 includes a knob body 132-1 slidably mounted on the first nozzle cover 150 and a knob strip 132-2 formed on a rear end portion of the knob body 132-1 and connected to one of the plurality of horizontal vanes 130.

[0069] Therefore, when the user holds and moves the knob body 132-1 of the main knob 132 upward, the knob strip 132-2 also moves upward, and at the same time, the horizontal vane 130 connected to the knob strip 132-2 and the remaining horizontal vanes 130 including the volume control vane 140 pivot upward.

[0070] In addition, when the volume control vane 140 is pivoted upward at a certain angle for upward discharge of air, the flat vane 142 of the volume control vane 140 is disposed to be inclined upward at a position higher than the partition wall 102, and at the same time, the guide vane 144 is disposed at a position lower than the partition wall 102, so that air can be mainly guided toward the main ventilation port 110.

[0071] Therefore, as Figure 3As shown, when the multiple horizontal vanes 130, including the air volume control vane 140, pivot upward at a certain angle to discharge air upward, the ratio of the length from the rear distal end of the guide vane 144 of the air volume control vane 140 to the top surface of the air duct 100 to the length from the rear distal end of the guide vane 144 to the bottom surface of the air duct 100 is set to 95:5, so that air can be mainly guided to the main vent 110.

[0072] In addition, such as Figure 6 As shown, multiple horizontal vanes 130, including the airflow control vane 140, are pivoted upward at an angle of approximately 25° (±2°) to discharge air upward in a horizontally arranged state.

[0073] Therefore, when air generated by the operation of the air conditioning unit flows inward along the air duct 100, the air can be guided upward by the guide vanes 144 and then discharged inward in an upward direction through the main vent 110 and the auxiliary vent 120.

[0074] In this case, the ratio of the length from the distal rear end of the guide vane 144 of the airflow control vane 140 to the top surface of the air duct 100 to the length from the distal rear end of the guide vane 144 to the bottom surface of the air duct 100 is set to 95:5. Therefore, as Figure 2 As indicated by the arrow, the air flowing into the space below the air duct 100 flows further toward the main vent 110 due to the guide vane 144, so that the air volume discharged in the upward direction through the main vent 110 toward the interior and the air volume discharged into the interior through the auxiliary vent 120 can be distributed in a ratio of 95:5.

[0075] Accordingly, the following effects can be achieved: most of the airflow discharged upwards through the main vent 110 can cool or heat the upper interior space, while some airflow discharged into the interior through the auxiliary vent 120 can cool or heat even the lower interior space. Therefore, the heating and cooling deviation between the upper and lower interior spaces can be reduced.

[0076] Adjustment of air in a neutral (linear) wind direction

[0077] Figure 4 This is a side cross-sectional view showing the ventilation device for a vehicle according to the invention operating in a state where the internal exhaust direction of air is adjusted to a linear direction (neutral direction).

[0078] like Figure 4 As shown, when the main knob 132 is in the neutral position, the flat blades 142 of the multiple horizontal blades 130 and the airflow control blades 140 are arranged in a horizontal state so as to discharge air in a linear direction.

[0079] In this case, as Figure 4 shown, the ratio of the length from the rear distal end of the guide fin 144 of the air volume control fin 140 to the top surface of the air duct 100 to the length from the rear distal end of the guide fin 144 to the bottom surface of the air duct 100 is set to a ratio of 80:20.

[0080] Therefore, when air generated due to the operation of the air conditioning device flows toward the interior along the air duct 100, the air can be guided in a linear direction due to the guide fin 144 and the horizontal fin 142 of the horizontally arranged air volume control fin 140, and then discharged toward the upward direction of the interior through the main vent 110 and the auxiliary vent 120.

[0081] In this case, the ratio of the length from the rear distal end of the guide fin 144 of the air volume control fin 140 to the top surface of the air duct 100 to the length from the rear distal end of the guide fin 144 to the bottom surface of the air duct 100 is set to a ratio of 80:20. Therefore, air flowing into the lower space of the air duct 100 further flows toward the main vent 110 due to the guide fin 144, so that the air volume discharged toward the linear direction of the interior through the main vent 110 and the air volume discharged to the interior through the auxiliary vent 120 can be distributed in a ratio of 80:20.

[0082] Similarly, most of the air volume discharged toward the linear direction of the interior through the main vent 110 can cool or heat the entire interior, and some of the air volume discharged to the interior through the auxiliary vent 120 can cool or heat even the lower space of the interior. Therefore, the heating and cooling deviation between the upper space and the middle space of the interior can be reduced.

[0083] Adjustment of air in a downward wind direction

[0084] Figure 5 is a side sectional view showing a state in which the air interior discharge direction of the ventilation device for a vehicle according to the present application is adjusted to a downward direction, Figure 7 is a side sectional view showing a downward pivoting angle of a plurality of horizontal fins including an air volume control fin in the ventilation device for a vehicle according to the present application to adjust the air interior discharge direction to a downward direction.

[0085] First, as described above with reference to Figure 12 when the user manipulates the main knob 132 downward, the plurality of horizontal fins 130 can be pivoted downward about the hinge coupling point of the link mechanism 134 since all of the plurality of horizontal fins 130 are hinge-coupled to one connection link 136.

[0086] Accordingly, when the user holds and moves the knob body 132-1 of the main knob 132 downward, the knob bar 132-2 is also moved downward, and the horizontal fin 130 connected to the knob bar 132-2 and the remaining horizontal fins 130 including the air volume control fin 140 are pivoted downward.

[0087] In addition, when the air volume control fin 140 is pivoted downward at an angle for discharging air downward, the flat fin 142 of the air volume control fin 140 is disposed at a position facing the rear end of the partition wall 102, and the guide fin 144 is disposed at a position higher than the partition wall 102, so that the air volume guided toward the auxiliary vent 120 can be increased.

[0088] Accordingly, as Figure 5 indicated, when the plurality of horizontal fins 130 including the air volume control fin 140 are pivoted downward at an angle for discharging air downward, the ratio of the length from the rear distal end of the guide fin 144 of the air volume control fin 140 to the top surface of the duct 100 to the length from the rear distal end of the guide fin 144 to the bottom surface of the duct 100 is set to a ratio of 65:35.

[0089] In addition, as Figure 7 indicated, the plurality of horizontal fins 130 including the air volume control fin 140 become a state of being pivoted downward at an angle of about 25° (± 2°) so as to discharge air downward in the horizontally disposed state.

[0090] Accordingly, when air generated due to the operation of the air conditioning device flows toward the inside along the duct 100, the air can be guided downward due to the guide fin 144 and then pass through the main vent 110 and the auxiliary vent 120, thereby being discharged toward the inside in the downward direction.

[0091] In this case, the ratio of the length from the rear distal end of the guide fin 144 of the air volume control fin 140 to the top surface of the duct 100 to the length from the rear distal end of the guide fin 144 to the bottom surface of the duct 100 is set to a ratio of 65:35. Accordingly, the air volume discharged toward the inside in the upward direction through the main vent 110 and the air volume discharged to the inside through the auxiliary vent 120 can be distributed in a ratio of 65:35.

[0092] Accordingly, it is possible to obtain an effect that most of the air volume discharged toward the inside in the downward direction through the main vent 110 can cool or heat the middle space and the lower space of the inside, and some of the air volume discharged to the inside through the auxiliary vent 120 can even further cool or heat the lower space of the inside.

[0093] On the other hand, as Figure 8 and Figure 9As shown, when the user maximally moves the main knob 132 downward to prevent air from being discharged to the inside, the plurality of horizontal vanes 130 including the air volume control vane 140 can be pivoted downward at the maximum angle to become a state in which the plurality of horizontal vanes 130 including the air volume control vane 140 are pressed against each other, so that air can be prevented from being discharged to the inside.

[0094] However, even when the plurality of horizontal vanes 130 including the air volume control vane 140 become a state in which they are pressed against each other to block air, air leakage toward the inside can occur through a gap in the plurality of horizontal vanes 130 including the air regulating vane 140.

[0095] In this case, as Figure 8 shown, when the partition wall 102 that separates the main vent 110 from the auxiliary vent 120 is not present, in a state in which the plurality of horizontal vanes 130 including the air volume control vane 140 are pivoted downward at the maximum angle to be pressed against each other, the amount of air leakage is excessively discharged through the auxiliary vent 120, so that the driver and the passenger can feel uncomfortable.

[0096] On the other hand, as Figure 9 shown, when the partition wall 102 that separates the main vent 110 from the auxiliary vent 120 is present, in a state in which the plurality of horizontal vanes 130 including the air volume control vane 140 are pivoted downward at the maximum angle to be pressed against each other, a part of the amount of air leakage is discharged to the inside through the main vent 110 along the upper surface of the partition wall 102, and the remaining part of the amount of air leakage is discharged to the inside through the auxiliary vent 120. Accordingly, the amount of air leakage can be distributed and discharged through the main vent 110 and the auxiliary vent 120, so that the discomfort of the driver and / or the passenger can be avoided.

[0097] The present application provides the following effects through the above-described problem solving means.

[0098] First, the main vent and the auxiliary vent separated by the partition wall are formed in the air discharge portion of the single duct, so that air is discharged to the inside of the vehicle through the main vent and the auxiliary vent, thereby enabling the amount of air to be easily increased and discharged to the inside, and enabling the amount of air to be evenly distributed to the inside.

[0099] Second, due to the plurality of horizontal vanes and the air volume control vane, the vertical direction of air can be smoothly adjusted, and the amount of air upwardly distributed and the amount of air downwardly distributed to the inside due to the air volume control vane can be appropriately adjusted.

[0100] Third, in the related art, in order to form the upper vent and the lower vent separately, the air duct is formed in a double structure, the branches of which are the upper duct and the lower duct, thereby causing a design constraint for securing an air duct installation space. However, unlike the related art, according to the present application, the main vent and the auxiliary vent are formed in a single air duct, thereby minimizing the occurrence of a design constraint for securing an air duct installation space, and achieving a reduction in the number of components and product costs.

[0101] Fourth, air leakage occurs even when the plurality of horizontal vanes are pivoted maximally downward to become a closed state. Therefore, in a state in which a partition wall for separating the main vent from the auxiliary vent is not present, the amount of air leakage is discharged through the auxiliary vent in a large amount, so that the driver and the passenger feel uncomfortable. Unlike the above description, when the partition wall for separating the main vent from the auxiliary vent is present, the amount of air leakage can be distributed and discharged through the main vent and the auxiliary vent, thereby being able to avoid the discomfort of the driver and the passenger.

[0102] Fifth, in the configuration of the first nozzle cover for covering the main vent, the front-to-rear length of the upper and lower bars of the inner nozzle frame is formed to be smaller than the front-to-rear length of the left and right bars of the inner nozzle frame, thereby being able to easily secure the directionality of the vertical air direction.

[0103] Although the embodiments of the present application have been described in detail, the scope of the present application is not limited to the embodiments, and various modifications and improvements of the present application, which are made by those skilled in the art using the basic concept of the present application as defined by the appended claims, are also included in the scope of the present application.

Claims

1. A ventilation device for a vehicle, comprising: an air duct which is a single passage of air flow; a partition wall installed on an air discharge portion of the air duct and configured to divide the air discharge portion into a main vent and an auxiliary vent; a plurality of horizontal vanes arranged in the air duct inside upstream of the partition wall with respect to an air flow path, the plurality of horizontal vanes being capable of being pivoted vertically together by manipulation of a main knob, and the plurality of horizontal vanes being configured to adjust a vertical air direction of air; an air volume control vane included in the plurality of horizontal vanes and configured to distribute an air volume discharged to an interior of the vehicle through the main vent and an air volume discharged to the interior of the vehicle through the auxiliary vent, wherein the air volume control vane includes a flat vane arranged parallel to other horizontal vanes of the plurality of horizontal vanes and a guide vane bent downward so as to extend from a rear end portion of the flat vane at a predetermined angle; in the air discharge portion of the air duct, the partition wall is installed closer to the auxiliary vent than to the main vent, such that a size of the main vent is formed larger than a size of the auxiliary vent, and a distance between a rear distal end of the guide vane and a top of the air duct is greater than a distance between the rear distal end of the guide vane and a bottom of the air duct; when the horizontal vanes are rotated in a first direction, the guide vane partially blocks air flowing through the auxiliary vent, and when the horizontal vanes are rotated in a second direction, the guide vane is arranged substantially parallel to the air duct and above the partition wall. 2.The ventilation device for a vehicle according to claim 1, wherein: the air volume control vane is located rearward of the partition wall and is pivoted at an angle for discharging air upward; when the air volume control vane is arranged in a horizontal state, the flat vane is located at a position higher than a position of the partition wall; when the air volume control vane is pivoted at an angle for discharging air downward, the flat vane is positioned to face a rear distal end of the partition wall.

3. The ventilation device for a vehicle according to claim 1, wherein when the plurality of horizontal vanes including the air volume control vane are pivoted at an angle for discharging air upward, a ratio of a length from a rear distal end of the guide vane to a top surface of the air duct to a length from the rear distal end of the guide vane to a bottom surface of the air duct is set to a ratio of 95:

5.

4. The ventilation device for a vehicle according to claim 3, wherein the plurality of horizontal vanes including the air volume control vane are pivoted upward at an angle of about 25° so as to discharge air upward in a horizontal arrangement state.

5. The ventilation device for a vehicle according to claim 1, wherein when the plurality of horizontal vanes including the air volume control vane are arranged in a horizontal state so as to discharge air in a linear direction, a ratio of a length from a rear distal end of the guide vane to a top surface of the air duct to a length from the rear distal end of the guide vane to a bottom surface of the air duct is set to a ratio of 80:

20.

6. The ventilation device for a vehicle according to claim 1, wherein when the plurality of horizontal vanes including the air volume control vane are pivoted at an angle for discharging air downward, a ratio of a length from a rear distal end of the guide vane to a top surface of the air duct to a length from the rear distal end of the guide vane to a bottom surface of the air duct is set to a ratio of 65:

35.

7. The ventilation device for a vehicle according to claim 6, wherein the plurality of horizontal vanes including the air volume control vane are pivoted downward at an angle of about 25° so as to discharge air downward in a horizontal arrangement state.

8. The ventilation device for a vehicle according to claim 1, wherein A first nozzle cover having a main knob mounted thereon is disposed at an outlet of a main vent, and a second nozzle cover having a dummy knob mounted thereon is disposed at an auxiliary vent.

9. The ventilation device for a vehicle according to claim 8, wherein The main knob includes a knob body slidably mounted on the first nozzle cover, and a knob strip formed in a rear end portion of the knob body and connected to one of a plurality of horizontal fins.

10. The ventilation device for a vehicle according to claim 8, wherein The first nozzle cover includes: a quadrangular outer nozzle frame having pivot shafts formed on top and bottom surfaces thereof and engaged with upper and lower portions of the main vent; a quadrangular inner nozzle frame arranged to be spaced apart from an inner surface of the outer nozzle frame; a plurality of connection strips configured to integrally connect the outer nozzle frame to the inner nozzle frame; and a main knob mounting strip connected between upper and lower portions of the inner nozzle frame.

11. The ventilation device for a vehicle according to claim 10, wherein The front-to-rear length of the upper and lower strips of the inner nozzle frame is formed to be smaller than the front-to-rear length of the left and right strips of the inner nozzle frame, thereby ensuring the directionality of the vertical air direction. The main knob includes a knob body slidably mounted on the first nozzle cover, and a knob strip formed in a rear end portion of the knob body and connected to one of a plurality of horizontal fins.

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