VENTILATION GRILLE WITH FLEXIBLE LOUVERS

Abstract

The present disclosure discloses a ventilation grille comprising a vent housing that includes a first airflow deflector for adjusting the airflow along the first axis and a second airflow deflector for adjusting the airflow along the second axis. The vent housing comprises a first housing component, a second housing component, and a collar, which together define a cavity in which the first and second airflow deflectors are positioned to redirect air from an inlet to an outlet. The ventilation grille enables control of the airflow in one or more directions, thereby simplifying the assembly of the vent housing.

Description

RELATED APPLICATIONS

[0001] This application is a continuation-in-part of U.S. Patent Application No. 18 / 743,557, filed June 14, 2024, which claims priority to U.S. Provisional Patent Application No. 63 / 521,960, filed June 20, 2023, and U.S. Provisional Patent Application No. 63 / 540,156, filed September 25, 2023, each entitled "Air Register with Flexible Vanes." Each of the foregoing is hereby incorporated by reference in its entirety. BACKGROUND

[0002] Air louvers are used in various applications to direct airflow from an air source (e.g., a fan) to a desired volume when heating or cooling is desired (e.g., a room, a cabin, an appliance, etc.). Effective control of airflow direction is essential for comfort and efficiency in automotive and heating, ventilation, air conditioning, and refrigeration (HVAC) systems.

[0003] Conventional ventilation grilles use rigid louvres to adjust the airflow in different directions. Rigid louvres are typically pivoted at one end and are actuated at their free end, for example, by an actuator and a rigid connecting link. This means that conventional ventilation grilles with rigid louvres connected by a rigid connecting link have interconnected louvre elements that pivot simultaneously when the connecting link is moved, for example, by an actuator or otherwise. This coordinated movement adjusts the direction of the airflow, allowing the air distribution within a volume to be controlled.

[0004] Conventional air vents typically use pivoting vertical louvers with a connecting rod to synchronize the louvers' movement. Rotation of the vertical louvers is typically provided by a sliding knob and a fork assembly that moves along a horizontal louver. Such conventional air vents typically include numerous components that are mechanically coupled to control airflow, increasing the complexity during manufacturing, the number of parts, and the number of moving parts that can become jammed or worn over time.

[0005] There is therefore a need for an improved ventilation grille that provides bidirectional airflow control with a simplified assembly process with improved functionality and durability. SUMMARY

[0006] The present disclosure generally relates to a ventilation grille substantially as illustrated by at least one of the figures and described in connection therewith, as more fully set forth in the claims. In one example, the present disclosure generally relates to a ventilation grille with flexible louvers. DRAWINGS

[0007] The foregoing and other objects, features, and advantages of the devices, systems, and methods described herein will become apparent from the following description of specific examples thereof, as illustrated in the accompanying figures, wherein like or similar reference numerals refer to like or similar structures. The figures are not necessarily to scale, with emphasis instead being placed upon illustrating the principles of the devices, systems, and methods described herein. The Fig. 1a and Fig. 1b illustrate front and rear perspective views of an exemplary ventilation grille according to one aspect of the subject disclosure. The Fig. 1c and Fig. 1d illustrate first and second side views of the exemplary ventilation grille. The Fig. 1e and Fig. 1f illustrate top and bottom views of the exemplary ventilation grille. The Fig. 1g and Fig. 1h illustrates front and rear views of the exemplary ventilation grille. Fig. Figure 1i illustrates a perspective front cross-sectional view of the exemplary ventilation grille along section line AA ( Fig. 1e). The Fig. 2a to 2c each illustrate plan views of Detail A ( Fig. 1e) from above in a fully assembled configuration, a first partially assembled configuration with the first housing component removed, and a second partially assembled configuration with the first flexible air duct removed. The Fig. 3a to 3c each illustrate air flow diagrams of the ventilation grille in plan view from above along the section line BB ( Fig. 1f), wherein its first airflow deflection arrangement is in a neutral position, a first extreme position and a second extreme position. The Fig. 3d and Fig. 3e each illustrates top views of Detail B ( Fig. 3a) and Detail C ( Fig. 3b) from above. Fig. Figure 3f illustrates a front view of the exemplary vent grille with the first airflow deflection assembly in a neutral position. Fig. Figure 3g illustrates a front view of the exemplary ventilation grille along section line BB ( Fig. 1f), wherein the first air flow deflection arrangement is in a neutral position. The Fig. 4a to 4c respectively illustrate side view airflow diagrams of the ventilation grille with its second airflow deflection arrangement in a neutral position, a first extreme position and a second extreme position. DETAILED DESCRIPTION

[0008] References to singular elements should be understood to include plural elements and vice versa, unless expressly stated otherwise or evident from the text. Grammatical conjunctions are intended to express all disjunctive and conjunctive combinations of connected clauses, sentences, words, and the like, unless otherwise stated or evident from the context. Mention of value ranges herein is not intended to be limiting and instead refers individually to all values ​​falling within and / or including the range, unless otherwise stated herein, and each individual value within such a range is incorporated into the specification as if individually mentioned herein.In the following description, it is understood that terms such as "first," "second," "top," "bottom," "side," "front," "back," "upper," "lower," and the like are used for convenience only and are not intended to be limiting. For example, while in some examples a first page is adjacent or proximate to a second page, the terms "first page" and "second page" do not imply any particular order in which the pages are arranged.

[0009] When the terms "about," "approximately," "substantially," or the like are used in connection with a numerical value, they are to be understood as indicating a deviation that a person of ordinary skill in the art may consider satisfactory for the intended purpose. Ranges of values ​​and / or numerical values ​​are provided herein as examples only and do not constitute limitations on the scope of the disclosure. The use of any examples or exemplary phrases ("e.g.," "such as," or the like) provided herein are merely intended to better illustrate the disclosed examples and do not constitute limitations on the scope of the disclosure. The terms "e.g.," "for example," and "for example" precede enumerations of one or more non-limiting examples, instances, or illustrations.No language in the patent specification should be construed to identify any unclaimed element as essential to the practice of the disclosed examples.

[0010] The term "and / or" means one or more of the elements in the list connected by "and / or." As an example, "x and / or y" means any element in the three-element set {(x), (y), (x, y)}. In other words, "x and / or y" means "one or both of x and y." As another example, "x, y, and / or z" means any element in the seven-element set {(x), (y), (z), (x, y), (x, z), (y, z), (x, y, z)}. In other words, "x, y, and / or z" means "one or more of x, y, and z."

[0011] The present disclosure relates to air vents, and more particularly, to an air vent having a vent housing that includes or otherwise defines two airflow diverters (e.g., first and second airflow diverter assembly assemblies) to provide precise control of airflow through the air vent along a first axis (e.g., a horizontal axis) and a second axis (e.g., a vertical axis). In some examples, the first axis and second axis are orthogonal, but non-orthogonal configurations are also contemplated. The air vent is particularly useful in automotive, HVAC systems, and other applications requiring careful control of air direction.

[0012] The disclosed vent grille offers several advantages. First, the disclosed vent grille enables precise control of airflow in both the first and second axes. Second, the disclosed vent grille simplifies the assembly of the vent housing. Third, the disclosed vent grille reduces the number of moving parts, thereby reducing wear and tear on the system over time. Fourth, the disclosed vent grille increases user-friendliness and comfort through integrated bidirectional airflow control. Fifth, the disclosed vent grille provides a robust and reliable vent housing suitable for a variety of applications. Finally, the disclosed vent grille offers optimized flow path geometries to provide reduced system pressure and improved plume quality.For example, it provides uniformity, minimized spreading / spreading, optimized airflow velocity at a given distance from the ventilation grille, etc. However, those skilled in the art will recognize that this is a non-exhaustive list of benefits.

[0013] In one example, a vent grille comprises: a vent housing having an inlet fluidly coupled to an outlet via a cavity; an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, the frame assembly configured to pivot relative to the vent housing about a rotational axis between a first extreme and a second extreme via a neutral position; a first flexible air duct positioned within the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air duct positioned within the cavity and coupled to both the inlet frame and the frame assembly, the first flexible air duct and the second flexible air duct configured to direct fluid from the inlet to the outlet.

[0014] In another example, an airflow diverter for a vent having a vent housing with an inlet fluidly coupled to an outlet via a cavity comprises: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, the frame assembly configured to pivot relative to the vent housing about a rotational axis between a first extreme and a second extreme via a neutral position; a first flexible air duct positioned within the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air duct positioned within the cavity and coupled to both the inlet frame and the frame assembly, the first flexible air duct and the second flexible air duct configured to direct fluid from the inlet to the outlet.

[0015] In yet another example, an airflow diverter for a vent having a vent housing with an inlet fluidly coupled to an outlet via a cavity comprises: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, the frame assembly configured to pivot relative to the vent housing about a rotational axis between a first extreme and a second extreme via a neutral position; a first flexible air guide positioned within the cavity and coupled to both the inlet frame and the frame assembly;and a second flexible air duct positioned within the cavity and coupled to both the inlet frame and the frame assembly, wherein both the first flexible air duct and the second flexible air duct are configured to flex as the frame assembly pivots between the first extreme and the second extreme, and wherein the first flexible air duct and the second flexible air duct are spaced apart from each other to define a flow path therebetween configured to direct fluid flow from the inlet to the outlet;

[0016] In some examples, both the first flexible air duct and the second flexible air duct are fixedly coupled to the frame assembly.

[0017] In some examples, both the first flexible air duct and the second flexible air duct are slidably coupled to the inlet frame.

[0018] In some examples, the first flexible air duct is slidably coupled to the inlet frame via a first slot, and the second flexible air duct is slidably coupled to the inlet frame via a second slot.

[0019] In some examples, both the first flexible air guide and the second flexible air guide are configured to flex as the frame assembly pivots between the first extreme and the second extreme.

[0020] In some examples, the first flexible air guide and the second flexible air guide are spaced apart from each other to define a flow path therebetween.

[0021] In some examples, the flow path is configured to direct fluid flow from the inlet to the outlet.

[0022] In some examples, the vent further comprises a plurality of flexible blades coupled to the frame assembly to define an airflow diverter, the frame assembly comprising a first frame and a second frame configured to translate relative to the first frame along an axis parallel to the rotation axis, and the plurality of flexible blades coupled to both the first frame and the second frame and configured to flex as the second frame translates relative to the first frame.

[0023] In some examples, the second frame is configured to translate relative to the first frame between a first extreme and a second extreme across a neutral position.

[0024] In some examples, the plurality of flexible vanes are configured to direct airflow in a first direction along the axis when the second frame is positioned at the first extreme.

[0025] In some examples, the plurality of flexible vanes are configured to direct airflow in a second direction along the axis that is opposite the first direction when the second frame is positioned at the second extreme.

[0026] The present disclosure provides a vent grille comprising a vent housing with a first airflow diverter assembly for adjusting airflow along a first axis (e.g., a horizontal axis) between a first direction and a second direction, and a second airflow diverter assembly for adjusting airflow along a second axis (e.g., a vertical axis) between a first direction and a second direction. The vent housing, in one example, includes a first housing component (e.g., an upper housing), a second housing component (e.g., a lower housing), and an inlet frame that collectively connect to define a cavity within which the first and second airflow diverters are at least partially positioned to direct air through the cavity from an inlet to an outlet.In some examples, the inlet frame connects and supports portions of the first and second housing components at the inlet (e.g., at the perimeter edge). The first and second housing components are connectable via a clamp assembly having a first clamp portion integrated into the first housing component and a second clamp portion integrated into the second housing component.

[0027] The Fig. 1a and Fig. 1b illustrate a perspective front and rear view of an exemplary ventilation grille 100 according to one aspect of the subject disclosure. Fig. 1c and Fig. 1d illustrate a first and second side view of the exemplary ventilation grille 100, respectively, while the Fig. 1e and Fig. 1f illustrate an upper and lower plan view of the exemplary ventilation grille 100. The Fig. 1g and Fig. 1h illustrate a front and rear view of the exemplary ventilation grille 100, while Fig. 1i is a front perspective cross-sectional view of the exemplary ventilation grille 100 along section line AA ( Fig. 1e) illustrates this.

[0028] The vent grille 100 is configured to control and adjust the direction of the inlet airflow 110, which enters via an inlet 106 through a cavity 114 of the vent housing 102 and exits via an outlet 108 as an outlet airflow 112. In other words, the inlet 106 is fluidly coupled to the outlet 108 via the cavity 114. In the illustrated example, the vent grille 100 includes a first housing component 102a (e.g., an upper housing, as illustrated), a second housing component 102b (e.g., a lower housing, as illustrated), and an inlet frame 102c. These components collectively define the cavity 114 through which air flows from the inlet 106 to the outlet 108.

[0029] The ventilation grille 100 further includes a first airflow deflection assembly 118 for adjusting the airflow along a first axis (e.g., a horizontal axis), as indicated by arrow 116, between a first direction 116a (illustrated as left) and a second direction 116b (illustrated as right), and / or a second airflow deflection assembly 120 for adjusting the airflow along a second axis (e.g., a vertical axis), as indicated by arrow 122, between a first direction 122a (illustrated as upward) and a second direction 122b (illustrated as downward).

[0030] While the various figures depict a vent grille 100 including both a first airflow deflection assembly 118 and a second airflow deflection assembly 120, it is contemplated that a vent grille 100 could include only one of the first airflow deflection assembly 118 and the second airflow deflection assembly 120. For example, in some cases, it may only be necessary or desirable to provide directional control along one axis.

[0031] The first housing component 102a and the second housing component 102b are configured to mate together and form the primary structure of the vent housing 102. The first housing component 102a may be connected to the second housing component 102b via one or more clamp assemblies 104. The clamp assembly 104 is used to connect the first housing component 102a and the second housing component 102b at one of a variety of locations. In some examples, each of the one or more clamp assemblies 104 includes a first clamp member 104a and a second clamp member 104b configured to be releasably secured to one another. Although clamp assemblies 104 are illustrated, the first housing component 102a may be connected to the second housing component 102b using other techniques such as ultrasonic / vibration welding, hot staking, adhesive, interference fitting, etc.

[0032] As illustrated, the first housing component 102a may include or otherwise define the first clamp portion 104a of a clamp assembly 104, while the second housing component 102b may include or otherwise define the second clamp portion 104b of the clamp assembly. For example, the first clamp portion 104a may be integrated into the first housing component 102a, and the second clamp portion 104b may be integrated into the second housing component 102b. Upon mating the first and second housing components 102a, 102b, the clamp portions 104a, 104b interlock and securely hold the first and second housing components 102a, 102b together, simplifying the construction and maintenance of the vent housing 102.

[0033] The inlet frame 102c is configured to connect and support the first and second housing components 102a, 102b at or adjacent the inlet 106 (e.g., by lining a portion of the interior surface, as illustrated, or surrounding a portion of the exterior surface). The inlet frame 102c assists in aligning the first and second housing components 102a, 102b and provides additional structural support of the vent housing 102 at the inlet 106. While the first and second housing components 102a, 102b are illustrated as separate components, a single, integral housing component may instead be used to provide or define the structure(s) associated with the first and second housing components 102a, 102b.

[0034] As illustrated, each of the first housing component 102a and the second housing component 102b is configured to define a side profile that is generally curved. In some examples, the shape of the side profile may be selected to minimize turbulence as air flows through the cavity 114 from the inlet 106 to the outlet 108. In other examples, the shape of the side profile may be selected to accommodate the shape of internal components. In the illustrated examples, the shape of the side profiles complements (e.g., generally conforms, is shaped to avoid obstruction, etc.) the shape of one or more components of the second airflow diverter assembly 120, such as its first flexible air duct 132a and second flexible air duct 132b.Each of the first housing component 102a and the second housing component 102b may, for example, be configured to guide and / or form the first flexible air guide 132a and the second flexible air guide 132b. As illustrated, the first flexible air guide 132a and the second flexible air guide 132b are spaced apart from each other to define a flow path therebetween configured to direct fluid flow from the inlet 106 to the outlet 108. While the various figures illustrate the shape of the side profiles as a curved airfoil, it is contemplated that the shape of the side profiles could be flat, sloped, triangular, rectangular, etc.

[0035] The first airflow diverting assembly 118 is positioned at the outlet 108 and at least partially within the cavity 114 to adjust the airflow along the first axis. This first airflow diverting assembly 118 includes a frame assembly 146 and a plurality of flexible vanes 128. In some examples, the frame assembly 146 includes a rear static frame 124 (e.g., a first frame) and a sliding frame 126 (e.g., a second frame). The plurality of flexible vanes 128 are positioned between the rear static frame 124 and the sliding frame 126.

[0036] The Fig. 2a to 2c each illustrate a top view of detail A ( Fig. 1e) from above in a fully assembled configuration, a first partially assembled configuration with the first housing component 102a removed, and a second partially assembled configuration with the first flexible air guide 132a removed to better illustrate the plurality of flexible fins 128.

[0037] As illustrated, the frame assembly 146 of the first airflow diverter assembly 118 may further include a front static frame 142 (e.g., a third frame) at its front end (e.g., adjacent the outlet 108) to provide support, increase rigidity, and minimize gaps between the first airflow diverter assembly 118 and the vent housing 102 when the first airflow diverter assembly 118 pivots about a pivot axis 138. For this purpose, the frame assembly 146 may be pivotally mounted relative to the vent housing 102.

[0038] The front static frame 142 may be configured as a generally four-sided, generally rigid component, illustrated as rectangular, having a first rail 142a (illustrated as an upper rail) connected to a second rail 142b (illustrated as a lower rail) via a third rail and a fourth rail (illustrated as a pair of vertical rails) to define a rectangular opening through which air may flow.

[0039] The front static frame 142 may further define one or more channels 144 (e.g., a groove or slot) configured to slidably support and engage the sliding frame 126, for example, via a ridge, lip, or other projection formed on the sliding frame 126. In the illustrated example, a channel 144 may be formed longitudinally on a front edge of the front static frame 142 and / or an inner surface (inward-facing surface) of the first rail 142a and / or the second rail 142b. The sliding frame 126 may be slidably supported in, through, and / or between the channels 144.

[0040] The front static frame 142 and the rear static frame 124 effectively define the static structure or frame, while the sliding frame 126, supported by the front static frame 142, slides with respect to the front static frame 142 and the rear static frame 124 to thereby bend and adjust the curvature of the plurality of flexible vanes 128 (and hence the airflow direction).

[0041] Each of the plurality of flexible louvers 128 may be formed as a generally four-sided sheet of flexible material, illustrated herein as a rectangular sheet of flexible material. Similarly, both the rear static frame 124 and the sliding frame 126 are configured as generally four-sided rigid components, also illustrated as rectangles, having four tracks (or links) that define a rectangular opening through which air may flow. Although the example illustrates the flexible louvers 128, the rear static frame 124, and the sliding frame 126 as each generally four-sided, other geometric shapes are contemplated depending on the specific design requirements and the shape of the enclosure 102 and / or the outlet 108. Alternative shapes may include oval, trapezoidal, and other polygonal configurations.Additional design considerations include specifically tailoring the components of the first airflow diverter assembly 118 to achieve specific output airflow velocities that ensure optimal performance and efficiency of the venting system.

[0042] In one example, the rear static frame 124 is fixed (e.g., immovable along the first axis) with respect to the front static frame 142 and / or the vent housing 102, while the translation frame 126 is configured to move (e.g., slide) with respect to the rear static frame 124. For example, the translation frame 126 is configured to move along the first axis, as indicated by arrow 116, between a first extreme position in the first direction 116a (left) and a second extreme position in the second direction 116b (right), while the rear static frame 124 remains fixed with respect to the first axis. In some examples, the rear static frame 124 and the front static frame 142 are fixedly coupled to each other.In this example, the translation frame 126 may be configured to slide within and along the channel 144 along the first axis, as indicated by arrow 116, between a first extreme position in the first direction 116a and a second extreme position in the first direction 116b.

[0043] The sliding frame 126 can be adjusted relative to the rear static frame 124 and the front static frame 142 directly or via a mechanical connection, which in turn can be connected to an external actuator. The external actuator can use a handheld device, such as a slider, or an automated device (e.g., electric motor, electric actuator, etc.). However, the rear static frame 124 and the front static frame 142 remain fixed with respect to the first axis; of course, the first airflow deflection assembly 118 can be configured to pivot relative to the vent housing 102 via the second airflow deflection assembly 120.

[0044] Each of the plurality of flexible slats 128 is coupled at a first end 128a thereof to the rear static frame 124 and at a second end 128b thereof to the sliding frame 126. In some examples, one of the first end 128a and the second end 128b is fixedly coupled to one of the rear static frame 124 or the sliding frame 126, while the other of the first end 128a and the second end 128b is slidably coupled to the other of the rear static frame 124 or the sliding frame 126.

[0045] The first end 128a or the second end 128b may be fixedly coupled to one of the rear static frame 124 or the sliding frame 126 via, for example, a friction fit, an interference fit, adhesive, fasteners, or the like. The first end 128a or the second end 128b may, for example, be wedged into a slot formed in one of the rear static frame 124 or the sliding frame 126. As best shown in the Fig. For example, as illustrated in Figures 3d through 3g, each of the plurality of flexible louvers 128 is fixedly coupled to the rear static frame 124 at the first end 128a and slidably coupled to the sliding frame 126 at the second end 128b. In some examples, the plurality of flexible louvers 128 may be further supported on the fixed frame 124 via an intermediate frame that remains fixedly attached to the rear static frame 124.

[0046] By coupling one end of the flexible blade 128, the flexible blade 128 can slidably bend without binding to maintain a smooth curvature. That is, binding may be more likely to occur if each of the first and second ends 128a, 128b is fixedly attached. To maintain alignment (i.e., in the second axis—illustrated as vertical) while allowing the plurality of flexible blades 128 to slide with respect to the sliding frame 126, each of the plurality of flexible blades 128 can be loosely sandwiched between a pair of protruding tabs 130, illustrated as a generally cylindrical protrusion on each of the upper and lower sides (e.g., rails) of the sliding frame 126. Therefore, during operation, the flexible slats 128 can slide relative to the sliding frame 126 to accommodate changes in the arc shapes and arc lengths of the flexible slat 128 during bending.While the pair of protruding lugs 130 is illustrated as generally cylindrical, other shapes are contemplated, including non-cylindrical and non-circular shapes.

[0047] Each of the plurality of flexible vanes 128 is therefore configured to flex between a first extreme curvature in the first direction 116a and a second extreme curvature in the second direction 116b beyond a neutral shape (e.g., where the flexible vanes 128 are in a standard, linear, or flat shape) as the sliding frame 126 moves between the first extreme position and the second extreme position. While the second ends 128b of the plurality of flexible vanes 128 are illustrated as being aligned relative to one another, the plurality of flexible vanes 128 may be oriented inwardly or outwardly relative to one another (e.g., enabling a non-linear direction of movement to direct airflow in the first direction 116a (left) and / or the second direction 116b (right)).

[0048] The Fig. 3a to 3c each illustrate the air flow diagram of the ventilation grille 100 in a top view along the section line BB ( Fig. 1f) in a neutral position, a first extreme position in the first direction 116a and a second extreme position in the second direction 116b. The Fig. 3d and Fig. 3e each illustrate the top view of detail B ( Fig. 3a) and Detail C ( Fig. 3b) from above, while the Fig. 3f and Fig. 3g each illustrate the front view of the exemplary ventilation grille 100, the detail E ( Fig. 3f) and along the section line BB ( Fig. 1f) are in a neutral position.

[0049] The second airflow diverting assembly 120 generally includes the first flexible air duct 132a, the second flexible air duct 132b, and one or more pivot connectors 134 (e.g., cylinder connectors or other pivot joints and / or connectors) that enable rotational (or pivoting) movement. The second airflow diverting assembly 120 is positioned at least partially within the cavity 114 to adjust airflow along the second axis. In one example, each of the pivot connectors 134 may include a central pivot axis and pivot recess. In some examples, the pivot connectors 134 may include a pivot drive element (e.g., a gear—a wheel with teeth around its circumference) configured to engage a motor or lever directly via a worm gear or via a drive train.

[0050] The Fig. 4a to 4c each illustrate a side view airflow diagram of the ventilation grille 100 with its second airflow deflection assembly 120 in a neutral position (e.g., centered or standard position), a first extreme position in the first direction 122a, and a second extreme position in the second direction 122b.

[0051] The first flexible air duct 132a and the second flexible air duct 132b are positioned within the cavity 114 and effectively bridge the distance or span between the inlet 106 and the outlet 108. In operation, the first flexible air duct 132a and the second flexible air duct 132b are configured to effectively direct airflow therethrough from the inlet 106 to the outlet 108. In the illustrated example, both the first flexible air duct 132a and the second flexible air duct 132b are fixedly coupled to the first airflow diverter assembly 118 at a first end of the first flexible air duct 132a and the second flexible air duct 132b. The first flexible air duct 132a and the second flexible air duct 132b may, for example, be fixedly coupled to the front static frame 142.

[0052] The second end of each of the first flexible air guide 132a and the second flexible air guide 132b, on the other hand, is slidably coupled to the inlet frame 102c via a first slot 136a and a second slot 136b to allow each of the first flexible air guide 132a and the second flexible air guide 132b to slide or translate with respect to the inlet frame 102c in the direction indicated by the arrow 140.

[0053] Slidingly coupling one end of each of the first flexible air duct 132a and the second flexible air duct 132b allows the first flexible air duct 132a and the second flexible air duct 132b to bend and flex more freely and without blocking. That is, blocking is more likely to occur when both the first end and the second end are fixedly attached. Therefore, during operation, the first flexible air duct 132a and the second flexible air duct 132b can slide with respect to the inlet frame 102c to accommodate changes in the arc shapes and arc lengths of the first flexible air duct 132a and the second flexible air duct 132b as they bend.In other words, the rotation coupled with a sliding engagement at the first slot 136a and the second slot 136b allows the first flexible air guide 132a and the second flexible air guide 132b to flex naturally, thereby optimizing the airflow to the first airflow diverting assembly 118.

[0054] In operation, the inlet airflow 110 enters the vent housing 102 through the inlet 106 and is directed through the cavity 114 as the outlet airflow 112 toward the outlet 108. The first airflow diverter assembly 118 adjusts the first axis of the airflow when the vanes 128 are flexed (e.g., bent or curved), while the second airflow diverter assembly 120 adjusts the airflow along a second axis by pivoting the first airflow diverter assembly 118 about a rotational axis 138 (e.g., via the frame assembly 146). Together, the first airflow diverter assembly 118 and the second airflow diverter assembly 120 provide precise control of the direction of the airflow, increasing user comfort and system efficiency.

[0055] Referring to the Fig. 4b and Fig. 4c, the shape of the side profiles for the first housing component 102a and the second housing component 102b can be selected to accommodate and complement the shape of the first flexible air guide 132a and the second flexible air guide 132b when the second airflow deflection assembly 120 changes between the first extreme position in the first direction 122a and the second extreme position in the second direction 122b. In particular, with reference to Fig. 4b, when the second airflow deflection assembly 120 is positioned in the first extreme position in the first direction 122a, the first flexible air guide 132a generally follows the first housing component 102a, but is not affected by it. Similarly, with reference to Fig.4c, when the second airflow deflection assembly 120 is positioned in the second extreme position in the second direction 122b, the second flexible air guide 132b generally protrudes from the second housing component 102b, but is not interfered with by it.

[0056] One or more components of the vent 100 may, for example, be made from synthetic or semi-synthetic polymers (e.g., plastics such as acrylonitrile butadiene styrene (ABS) and polyvinyl chloride (PVC), etc.), composite materials (e.g., fiberglass), metal (or a metal alloy), or a combination thereof. Certain components of the vent 100 (e.g., the vent housing 102, the rear static frame 124, the sliding frame 126, the front static frame 144, etc.) may be manufactured as rigid components, while other components of the vent 100 (e.g., the flexible vanes 128, the first flexible air guide 132a, and the second flexible air guide 132b) may be manufactured as flexible components. The flexible components are manufactured from a material that is flexible and / or softer than the material of the rigid components.

[0057] The rigid components would typically be made of a durable plastic material, but other materials such as metal or composites may also be used. In some examples, the rigid components may be manufactured from a relatively hard plastic using a plastic injection molding process. In contrast, the flexible components may be formed (e.g., cut, punched, etc.) from sheets of material (e.g., a thin sheet of material). Alternatively, one or more components of the vent grille 100 may be manufactured using material extrusion techniques such as fused deposition modeling (FDM), stereolithography (SLA), selective laser sintering (SLS), material jetting, binder jetting, powder bed fusion, directed energy deposition, VAT photopolymerization, and other suitable types of additive manufacturing / 3D printing processes.

[0058] Suitable materials for the manufacture of flexible components include silicone, which is characterized by its high flexibility and temperature resistance; thermoplastic elastomers (TPE), known for their elasticity and durability; and flexible polymers such as polyethylene (PE), polyvinyl chloride (PVC), thermoplastic polyurethane (TPU), and polypropylene (PP), which offer a balance of flexibility, strength, and cost-effectiveness. It is also conceivable for the flexible components to comprise a flexible, closed-cell, foamed, and / or rubber material.

[0059] The material thickness must be optimized to maintain flexibility while ensuring structural integrity. For example, a material with a low elastic modulus, which indicates that the material is flexible and capable of significant elastic deformation, may be thicker than one with a higher elastic modulus. In any case, the flexible components are generally thin and very flexible to allow them to bend and move between extreme positions. The flexible components can be manufactured with a material sheet that is between 0.1 and 2 mm, between 0.2 and 1.5 mm, between 0.2 and 1.0 mm, between 0.2 and 1.5 mm, or about 0.25 mm thick. However, the thickness can be influenced by the stiffness of the material. As a non-limiting example, the flexible components can be manufactured with PVC, PP, and / or TPU sheets with a thickness of about 0.25 mm.

[0060] Incorporating reinforcements or textured surfaces can improve airflow control capabilities. The material must also be resistant to environmental influences such as temperature fluctuations and humidity. Furthermore, the flexible components should be lightweight for ease of handling and installation and non-toxic to ensure safety in applications such as HVAC systems.

[0061] Although the present method and / or system has been described with reference to particular implementations, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present method and / or system. Moreover, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the scope thereof. For example, blocks and / or components of the disclosed examples may be combined, split, rearranged, and / or otherwise modified. Therefore, the present method and / or system are not limited to the particular implementations disclosed.Rather, the present method and / or system includes all implementations that fall within the scope of the appended claims, both literally and under the doctrine of equivalents. Additional sentences:

[0062] The following sentences describe further exemplary embodiments of the present invention.

[0063] In a first embodiment there is a ventilation grille comprising: a vent housing having an inlet fluidly coupled to an outlet via a cavity; an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein the first flexible air guide and the second flexible air guide are configured to direct fluid from the inlet to the outlet.

[0064] Ventilation grille of the first embodiment, wherein both the first flexible air guide and the second flexible air guide are fixedly coupled to the frame arrangement.

[0065] The ventilation grille of the first embodiment, wherein both the first flexible air guide and the second flexible air guide are slidably coupled to the inlet frame.

[0066] The ventilation grille of the first embodiment, wherein the first flexible air guide is slidably coupled to the inlet frame via a first slot and the second flexible air guide is slidably coupled to the inlet frame via a second slot.

[0067] The ventilation grille of the first embodiment, wherein both the first flexible air guide and the second flexible air guide are configured to flex when the frame assembly pivots between the first extreme and the second extreme.

[0068] The ventilation grille of the first embodiment, wherein the first flexible air guide and the second flexible air guide are spaced apart from each other to define a flow path therebetween.

[0069] The ventilation grille of the first embodiment, wherein the flow path is configured to direct fluid flow from the inlet to the outlet.

[0070] In a second embodiment, the ventilation grille further comprises a plurality of flexible louvres coupled to the frame assembly to define an airflow diverter, wherein the frame assembly comprises a first frame and a second frame configured to translate relative to the first frame along an axis parallel to the rotation axis, and wherein the plurality of flexible slats are coupled to both the first frame and the second frame and configured to flex as the second frame translates relative to the first frame.

[0071] The ventilation grille of the second embodiment, wherein the second frame is configured to translate relative to the first frame between a first extreme and a second extreme via a neutral position.

[0072] The ventilation grille of the second embodiment, wherein the plurality of flexible blades is configured to direct airflow in a first direction along the axis when the second frame is positioned at the first extreme.

[0073] The ventilation grille of the second embodiment, wherein the plurality of flexible blades is configured to direct the airflow in a second direction along the axis opposite the first direction when the second frame is positioned at the second extreme.

[0074] In a third embodiment, there is an air flow diverter for a ventilation grille, which has a vent housing with an inlet which is fluidly coupled to an outlet via a cavity, the air flow diverter comprising: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein the first flexible air guide and the second flexible air guide are configured to direct fluid from the inlet to the outlet.

[0075] Air flow deflector of the third embodiment, wherein both the first flexible air guide and the second flexible air guide are fixedly coupled to the frame assembly.

[0076] The airflow diverter of the third embodiment, wherein both the first flexible air guide and the second flexible air guide are slidably coupled to the inlet frame.

[0077] The airflow diverter of the third embodiment, wherein the first flexible air guide is slidably coupled to the inlet frame via a first slot and the second flexible air guide is slidably coupled to the inlet frame via a second slot.

[0078] The airflow diverter of the third embodiment, wherein both the first flexible air guide and the second flexible air guide are configured to flex as the frame assembly pivots between the first extreme and the second extreme.

[0079] The airflow diverter of the third embodiment, wherein the first flexible air guide and the second flexible air guide are spaced apart from each other to define a flow path therebetween configured to direct fluid flow from the inlet to the outlet.

[0080] In another embodiment, there is an airflow diverter for a ventilation grille comprising a vent housing with an inlet fluidly coupled to an outlet via a cavity, the airflow diverter comprising: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein both the first flexible air guide and the second flexible air guide are configured to bend when the frame assembly pivots between the first extreme and the second extreme, and wherein the first flexible air guide and the second flexible air guide are spaced apart from each other to define a flow path therebetween configured to direct fluid flow from the inlet to the outlet.

[0081] The airflow diverter of the third embodiment, wherein both the first flexible air guide and the second flexible air guide are fixedly coupled to the frame assembly, and both the first flexible air guide and the second flexible air guide are slidably coupled to the inlet frame.

[0082] The airflow diverter of the third embodiment, wherein the first flexible air guide is slidably coupled to the inlet frame via a first slot and the second flexible air guide is slidably coupled to the inlet frame via a second slot. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 18 / 743,557

[0001] US 63 / 521,960

[0001] US 63 / 540,156

[0001]

Claims

[1] A ventilation grille that has: a vent housing having an inlet fluidly coupled to an outlet via a cavity; an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein the first flexible air guide and the second flexible air guide are configured to direct fluid from the inlet to the outlet. [2] The ventilation grille of claim 1, wherein both the first flexible air guide and the second flexible air guide are fixedly coupled to the frame assembly, and optionally, wherein both the first flexible air guide and the second flexible air guide are slidably coupled to the inlet frame. [3] A ventilation grille according to any one of the preceding claims, wherein the first flexible air duct is slidably coupled to the inlet frame via a first slot and the second flexible air duct is slidably coupled to the inlet frame via a second slot, and optionally, wherein both the first flexible air duct and the second flexible air duct are configured to flex when the frame assembly pivots between the first extreme and the second extreme, and optionally, wherein the first flexible air duct and the second flexible air duct are spaced apart from each other to define a flow path therebetween, and optionally, wherein the flow path is configured to direct fluid flow from the inlet to the outlet. [4] Ventilation grille according to one of the preceding claims, further comprising a plurality of flexible louvres coupled to the frame assembly to define an airflow diverter, wherein the frame assembly comprises a first frame and a second frame configured to translate relative to the first frame along an axis parallel to the rotation axis, and wherein the plurality of flexible slats are coupled to both the first frame and the second frame and configured to flex as the second frame translates relative to the first frame. [5] The ventilation grille of claim 4, wherein the second frame is configured to translate relative to the first frame between a first extreme and a second extreme via a neutral position, and optionally, wherein the plurality of flexible blades is configured to direct the airflow in a first direction along the axis when the second frame is positioned at the first extreme. [6] The ventilation grille of claim 5, wherein the plurality of flexible blades are configured to direct the airflow in a second direction along the axis opposite the first direction when the second frame is positioned at the second extreme. [7] Air flow diverter for a ventilation grille with a vent housing with an inlet which is fluidly coupled to an outlet via a cavity, the air flow diverter comprising: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein the first flexible air guide and the second flexible air guide are configured to direct fluid from the inlet to the outlet. [8] The airflow diverter of claim 7, wherein both the first flexible air duct and the second flexible air duct are fixedly coupled to the frame assembly, and optionally, wherein both the first flexible air duct and the second flexible air duct are slidably coupled to the inlet frame, and optionally, wherein the first flexible air duct is slidably coupled to the inlet frame via a first slot and the second flexible air duct is slidably coupled to the inlet frame via a second slot, and optionally, wherein both the first flexible air duct and the second flexible air duct are configured to flex when the frame assembly pivots between the first extreme and the second extreme, and optionally, wherein the first flexible air duct and the second flexible air duct are spaced apart from each other to define a flow path therebetween,configured to direct fluid flow from the inlet to the outlet. [9] Air flow diverter for a ventilation grille with a vent housing with an inlet which is fluidly coupled to an outlet via a cavity, the air flow diverter comprising: an inlet frame positioned at the inlet; a frame assembly positioned at the outlet, wherein the frame assembly is configured to pivot relative to the vent housing about a rotation axis between a first extreme and a second extreme about a neutral position; a first flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly; and a second flexible air guide positioned in the cavity and coupled to both the inlet frame and the frame assembly, wherein both the first flexible air guide and the second flexible air guide are configured to bend when the frame assembly pivots between the first extreme and the second extreme, and wherein the first flexible air guide and the second flexible air guide are spaced apart from each other to define a flow path therebetween configured to direct fluid flow from the inlet to the outlet. [10] The airflow diverter of any of claims 7 and 8, wherein both the first flexible air duct and the second flexible air duct are fixedly coupled to the frame assembly and both the first flexible air duct and the second flexible air duct are slidably coupled to the inlet frame, and optionally, wherein the first flexible air duct is slidably coupled to the inlet frame via a first slot and the second flexible air duct is slidably coupled to the inlet frame via a second slot.

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