The present disclosure is generally directed to vehicle systems, and more particularly to vehicle ventilation systems.
Heating, ventilation, and cooling (“HVAC”) systems have long been included in automobiles, whether as standard or optional equipment. Such systems typically comprise an HVAC module, which receives air, conditions the air as necessary (whether by heating or cooling, although in some instances no conditioning is needed or effected), mixes the air as necessary (e.g., mixes cooled air with fresh air or warm air with fresh air to achieve a desired air temperature), and blows the air through one or more ducts to one or more vents in the passenger cabin of the vehicle. HVAC modules thus selectively provide air, for example, to dashboard-mounted or dash-level vents, ceiling and sidewall mounted vents, floor-mounted or foot-level vents, and defrosting vents. Conventionally, automotive air vents may be manually adjusted to blow air in different horizontal directions by turning hinged vertical vanes toward the left or right.
Embodiments of the present disclosure will be described in connection with a vehicle, and more particularly with respect to an automobile. However, for the avoidance of doubt, the present disclosure encompasses the use of the aspects described herein in vehicles other than automobiles.
Coordinate system 102 is provided for added clarity in referencing relative locations in the vehicle 100. In this detailed description, an object is forward of another object or component if the object is located in the −X direction relative to the other object or component. Conversely, an object is rearward of another object or component if the object is located in the +X direction relative to the other object or component.
The vehicle 100 may be, by way of example only, an electric vehicle or a gas-powered vehicle. Where the vehicle 100 is an electric vehicle, the vehicle 100 may comprise one or more electric motors powered by electricity from an on-board battery pack. The electric motors may, for example, be mounted near or adjacent an axis or axle of each wheel 112 of the vehicle, and the battery pack may be mounted on the vehicle undercarriage 140. In such embodiments, the front compartment of the vehicle, referring to the space located under the vehicle hood 116, may be a storage or trunk space. Where the vehicle 100 is a gas-powered vehicle, the vehicle 100 may comprise a gas-powered engine and associated components in the front compartment (under the vehicle hood 116), which engine may be configured to drive either or both of the front wheels 112 and the rear wheels 112. In some embodiments where the vehicle 100 is gas-powered, the gas-powered engine and associated components may be located in a rear compartment of the vehicle 100, leaving the front compartment available for storage or trunk space or for other uses. In some embodiments, the vehicle 100 may be, in addition to a battery-powered electric vehicle and a gas-powered vehicle, a hybrid electric vehicle, a diesel-powered vehicle, or a fuel cell vehicle.
Although shown in the form of a car, it should be appreciated that the vehicle 100 described herein may include any conveyance or model of a conveyance, where the conveyance was designed for the purpose of moving one or more tangible objects, such as people, animals, cargo, and the like. The term “vehicle” does not require that a conveyance moves or is capable of movement. Typical vehicles may include but are in no way limited to cars, trucks, motorcycles, buses, automobiles, trains, railed conveyances, boats, ships, marine conveyances, submarine conveyances, airplanes, space craft, flying machines, human-powered conveyances, and the like.
Referring now to
Referring now to
Although the axle 304 is depicted in
The vanes 308 are thin or substantially flat in a first dimension, and substantially elliptical in a second dimension perpendicular to the first dimension. In the second dimension, each vane 308 may define a cylindrical section or conical section. For example,
As evident from
Like the vanes 308 in
In some embodiments of the present disclosure, the vanes 308 may be secured to the axle 304 at an angle other than 25°, provided that the shape of the vanes 308 is adjusted to maintain a substantially circular perimeter as viewed along the axis of the axle 304. For example, the vanes 308 may be attached to the axle 304 at any angle between approximately 5° and approximately 85°. If the vanes 308 are attached to the axle 304 at an angle of 5°, each elliptical vane 308 must have a major axis substantially longer than the major axis of the vanes 308 depicted in
The angle between the vanes 308 and the axle 304 of the vane assembly 600 may be selected based on the particular application in which the vane assembly 600 may be used. For example, if a vane assembly 600 will be used in an air vent 300 positioned in the middle of a wide vehicle and intended to provide air across the entire width of the vehicle (e.g., to multiple occupants sitting abreast, or to defrost an entire windshield), then a lower angle between the vanes 308 and the axle 304 may be desirable to enhance the ability of the air vent to direct air from the center of the vehicle to the sides of the vehicle. On the other hand, if the air vent 300 extends directly in front of the entire area it is intended to reach, then a higher angle between the vanes 308 and the axle 304 may be desirable, as less deflection will be needed.
Referring now to
A motor used to rotate the axle or shaft 304 may be, for example, any motor suitable for use in a vehicle. In some embodiments, the motor may be a DC motor. The motor may also be a 12-volt motor. The size and other characteristics of the motor may be selected, for example, based on the length of the axle 304, the ease of rotation of the axle 304, and the parameters of the electrical system of the vehicle in which the motor will be installed. In some embodiments, a single motor may be (permanently or detachably) coupled to a plurality of vane assemblies 600.
A vane assembly 600 positioned within a duct 312 may alternatively be manually rotatable (as in
Although the vane assembly 600 illustrated in the Figures is shown with a certain number of vanes 308 and having a certain size, the present disclosure is not limited to identical vane assemblies. In particular, the number of vanes 308 included on a vane assembly 600 for a particular application will depend upon the width of the air vent 300 in which the vane assembly 600 is installed, as well as the size of the vanes 308 (which, in turn, will be determined at least in party by the angle at which the vanes 308 are installed on the axle 304). For example, larger vanes mounted to the axle 304 at angles closer to 5° will have a greater length in the direction parallel to the axle 304, such that fewer vanes 308 will fit within a given air vent 300. On the other hand, smaller vanes 308 mounted to the axle 304 at angles closer to 85° will have a shorter length in the axial direction than if the vanes 308 were mounted to the axle 304 at an angle closer to 5°, such that more vanes 308 will fit on the axle 304 within the given air vent 300.
Additionally, the height of air vents 300 in which a vane assembly 600 is installed may vary. To ensure that the vane assembly 600 is able to deflect air flow through a given air vent, the diameter of the substantially circular shape formed by the vanes 308 when viewed in the axial direction should be slightly less than the height of the air vent 300. In some embodiments, the vanes 308 may just touch the upper and lower walls of the duct 312 in which the vanes 308 are located, while in other embodiments, the vanes 308 may not quite touch the upper and lower walls of the duct 312. As will be apparent in light of this disclosure, if a substantial gap exists between the upper and lower edges of the vanes 308 and the upper and lower walls of the duct 312, respectively, then air flowing out of the duct 312 will be able to flow around the vane assembly 600, thus reducing or negating the effectiveness of the vane assembly 600.
Referring now to
With respect to
As may be appreciated based on the description of
The vanes 1008 of the air vent 1000 are not all identical. The shape of each vane 1008 is based on the angle at which each vane 1008 is attached to or otherwise extends from the flexible rod 1004. Thus, vanes 1008 extending from the flexible rod 1004 at angles closer to perpendicular to the flexible rod 1004 are more circular in shape (when viewed at a right angle to the plane in which the vane extends), while vanes 1008 extending from the flexible rod 1004 at angles that are closer to parallel to the flexible rod 1004 are more elliptical in shape (again, when viewed at a right angle to the plane in which the vane extends). When viewed along a line that is tangent to the axis of the flexible rod 1004 at the point of attachment of the vane 1008 to the flexible rod 1004, however, each of the vanes 1008 is circular, thus allowing the vanes 1008 to rotate together with the flexible rod 1004, without being obstructed by the top and bottom surfaces of the duct 1012.
Any number of vanes 1008 may be attached to the flexible rod 1004, provided that the number of vanes 1008 is not so great as to reduce airflow through the air duct 1012 by an undesirable amount, or to prevent rotation of the flexible rod 1004, and further provided that the number of vanes 1008 is not so few as to have an undesirably minimal effect on the direction of airflow from the outlet of the duct 1012. Additionally, the angles at which the vanes 1008 are attached to or otherwise extend from the flexible rod 1004 may be selected based on the desired coverage of the air vent 1000. If the air vent 1000 is intended to direct air across the entire width of a vehicle passenger compartment, then the vanes 1008 nearest the sides of the air duct 1012 may extend from the flexible rod 1004 at an angle that is almost perpendicular to the initial direction of flow through the air vent 1000, with each vane 1008 that is successively closer to the center of the duct 1012 angled closer to parallel with the initial direction of flow through the air vent 1000 than the preceding vane 1008. In this manner, the vanes 1008 channel the air outward from the duct 1012 as shown, for example, by the arrows in
Except as otherwise described above, the flexible rod 1004 may be the same as or similar to the axle 304, and the vanes 1008 may be the same as or similar to the vanes 308. The air vent 1000 may beneficially be used where increased horizontal air aiming coverage is desired, and/or where use of a duct 1012 having a curved outlet is desirable or necessary.
Although embodiments of the present disclosure are not limited to long, narrow air vents, the ability of present disclosure to be applied with a long, narrow air vent beneficially increases the options available to vehicle designers and other space planners, as traditionally shaped air vents—which can consume substantial space in a given area—may be replaced with long, narrow vents that may be locatable out of the way of other key vehicle components. Long, narrow air vents may be placed, for example, along an upper surface of a dashboard, or in a vehicle ceiling.
Additionally, in some embodiments, the top and bottom of an air duct 312 may partially curve around the circular cross-section (along the axis of the axle or shaft 304) of a vane assembly 600 according to embodiments of the present disclosure. Such curvature may be included for aesthetic purposes (e.g., to reduce the amount of the vane assembly 600 that is visible from a passenger compartment), and/or to increase the exit velocity of air flowing through the duct.
Additionally, according to some embodiments of the present disclosure, a vane assembly 600 may be mounted vertically in tall, narrow air vent, which may be positioned, for example, on an interior column or pillar of a vehicle. In such embodiments, rotation of the vane assembly 600 within the air vent directs the air out of the air vent in directions ranging from upward to downward.
The features of the various embodiments described herein are not intended to be mutually exclusive. Instead, features and aspects of one embodiment may be combined with features or aspects of another embodiment. Additionally, the description of a particular element with respect to one embodiment may apply to the use of that particular element in another embodiment, regardless of whether the description is repeated in connection with the use of the particular element in the other embodiment.
Examples provided herein are intended to be illustrative and non-limiting. Thus, any example or set of examples provided to illustrate one or more aspects of the present disclosure should not be considered to comprise the entire set of possible embodiments of the aspect in question. Examples may be identified by the use of such language as “for example,” “such as,” “by way of example,” “e.g.,” and other language commonly understood to indicate that what follows is an example.
The systems and methods of this disclosure have been described in relation to the air vents positioned in a vehicle. However, to avoid unnecessarily obscuring the present disclosure, the preceding description omits a number of known structures and devices. This omission is not to be construed as a limitation of the scope of the claimed disclosure. Specific details are set forth to provide an understanding of the present disclosure. It should, however, be appreciated that the present disclosure may be practiced in a variety of ways beyond the specific detail set forth herein.
A number of variations and modifications of the disclosure can be used. It would be possible to provide for some features of the disclosure without providing others.
The present disclosure, in various embodiments, configurations, and aspects, includes components, methods, processes, systems and/or apparatus substantially as depicted and described herein, including various embodiments, subcombinations, and subsets thereof. Those of skill in the art will understand how to make and use the systems and methods disclosed herein after understanding the present disclosure. The present disclosure, in various embodiments, configurations, and aspects, includes providing devices and processes in the absence of items not depicted and/or described herein or in various embodiments, configurations, or aspects hereof, including in the absence of such items as may have been used in previous devices or processes, e.g., for improving performance, achieving ease, and/or reducing cost of implementation.
The foregoing discussion of the disclosure has been presented for purposes of illustration and description. The foregoing is not intended to limit the disclosure to the form or forms disclosed herein. In the foregoing Detailed Description for example, various features of the disclosure are grouped together in one or more embodiments, configurations, or aspects for the purpose of streamlining the disclosure. The features of the embodiments, configurations, or aspects of the disclosure may be combined in alternate embodiments, configurations, or aspects other than those discussed above. This method of disclosure is not to be interpreted as reflecting an intention that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment, configuration, or aspect. Thus, the following claims are hereby incorporated into this Detailed Description, with each claim standing on its own as a separate preferred embodiment of the disclosure.
Embodiments include an air vent, comprising: an air duct comprising a first side, a second side, a top, and a bottom, the air duct comprising an air outlet; a central shaft extending across the air duct from the first side to the second side, the central shaft rotatably attached to the first side and the second side near the air outlet; and a plurality of vanes fixedly secured to the central shaft at an angle, each vane defining a plane that intersects the central shaft at the angle; wherein each vane defines a conic section in the plane defined by the vane, and further wherein each vane has a circular perimeter relative to an axis of rotation of the vane.
Aspects of the above air vent include: a plurality of collets, each of the plurality of collets connecting one of the plurality of vanes to the central shaft; wherein the air outlet is rectangular in cross-section and has a height H between the top and the bottom of the air duct, and a width greater than 5H between the first side and the second side of the air duct; wherein one end of the central shaft extends through one of the first side and the second side; wherein a control wheel is fixedly attached to the one end, the control wheel manually operable to rotate the central shaft within the air duct; wherein a motor is coupled to the one end, the motor configured to selectively rotate the central shaft; wherein the air vent is positioned within a passenger compartment of a vehicle, and the motor is configured to selectively rotate the central shaft based on vehicle climate control settings; wherein each of the plurality of vanes is fixedly secured to the central shaft at a common angle; wherein the plurality of vanes is fixedly secured to the central shaft at a plurality of angles; and wherein the central shaft is flexible, and further wherein the central shaft is rotatably secured in a curved position by the first side and the second side.
Embodiments also include a vehicle comprising: a passenger compartment; a climate control system comprising at least one air duct extending to the passenger compartment, the air duct comprising a top surface, a bottom surface, a first sidewall, and a second sidewall, the air duct further comprising an outlet for discharging air into the passenger compartment; a shaft rotatably positioned within the air duct adjacent the outlet; and a plurality of vanes mounted to the shaft at an angle other than a right angle, each of the plurality of vanes shaped as a cylindrical section and having a circular perimeter when viewed along an axis of the shaft.
Aspects of the above vehicle include: wherein the shaft is flexible and the plurality of vanes are mounted to the shaft at a plurality of angles; wherein rotation of the shaft changes the orientation of the plurality of vanes relative to air flowing through the air duct; wherein rotation of the shaft to a first orientation causes the plurality of vanes to direct air through the outlet in a first direction, and rotation of the shaft to a second orientation different than the first orientation causes the plurality of vanes to direct air through the outlet in a second direction different than the first direction; wherein the outlet has a rectangular perimeter with a height less than or equal to one-fifth of a width; and wherein the shaft further comprises a motor coupling.
Embodiments further include an air vent comprising: an air duct having a fixed height and width; a shaft extending across the width of the air duct; and a plurality of vanes, each shaped as a cylindrical section and each affixed to the shaft at an angle greater than or equal to five degrees and less than or equal to eighty-five degrees; wherein a first distance, measured perpendicular to the shaft, from the shaft to any point on an outer perimeter of any one of the plurality of vanes is equal to a second distance, measured perpendicular to the shaft, from the shaft to any point on an outer perimeter of any other one of the plurality of vanes.
Aspects of the above air vent include: wherein the shaft is rotatably mounted across the width of the air duct; wherein the shaft comprises a motor coupling; and wherein the shaft is flexible and the plurality of vanes are affixed to the shaft at a plurality of angles.
Any one or more of the aspects/embodiments as substantially disclosed herein optionally in combination with any one or more other aspects/embodiments as substantially disclosed herein.
One or means adapted to perform any one or more of the above aspects/embodiments as substantially disclosed herein.
The phrases “at least one,” “one or more,” “or,” and “and/or” are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C,” “at least one of A, B, or C,” “one or more of A, B, and C,” “one or more of A, B, or C,” “A, B, and/or C,” and “A, B, or C” means A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B and C together.
The term “a” or “an” entity refers to one or more of that entity. As such, the terms “a” (or “an”), “one or more,” and “at least one” can be used interchangeably herein. It is also to be noted that the terms “comprising,” “including,” and “having” can be used interchangeably.