EP4259985A1 - Ensemble pour conduit d'air dans un système de ventilation - Google Patents

Ensemble pour conduit d'air dans un système de ventilation

Info

Publication number
EP4259985A1
EP4259985A1 EP21839670.3A EP21839670A EP4259985A1 EP 4259985 A1 EP4259985 A1 EP 4259985A1 EP 21839670 A EP21839670 A EP 21839670A EP 4259985 A1 EP4259985 A1 EP 4259985A1
Authority
EP
European Patent Office
Prior art keywords
ring
shape
assembly
sub
rotor part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21839670.3A
Other languages
German (de)
English (en)
Inventor
Thibault Louis Renson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prado Europe BV
Original Assignee
Prado Europe BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prado Europe BV filed Critical Prado Europe BV
Publication of EP4259985A1 publication Critical patent/EP4259985A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/065—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as cylindrical or spherical bodies which are rotatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members

Definitions

  • the present invention relates to an assembly for use in an air duct for ventilation of a building.
  • the assembly comprises a control valve or a controllable valve, e.g., a supply and/or exhaust valve, with flow control means for controlling the flow of air through the valve and adjusting means to adjust the relative position of flow control means of the valve.
  • the flow control means comprise two sub-elements that can be positioned relative to each other with a free end facing the other sub-element.
  • the assembly further comprises an extension piece having a proximal side adapted to engage the free end of one of the sub-elements and an opposite distal side.
  • buildings have air ducts that provide passageways for the exchange, ventilation, circulation and/or movement of air through the surfaces (e.g., walls and ceilings) of the building. Buildings may have ventilation systems that draw in "fresh” air from outside the building and expel “exhaust air” from inside the building. Fresh air can be drawn into a building or exhaust air can be expelled from a building through one or more air ducts. Some buildings contain other systems and/or devices, such as air conditioning systems, heating systems and bathroom fans, which use air ducts to provide passageways for the flow of air through the surfaces of buildings.
  • an air duct is associated with devices such as ventilation nozzles and/or ventilation grilles to conduct air flows from the ventilation ducts.
  • Some of these devices include controllable valves or control valves for adjusting the airflow. It is hereby possible to control the airflow through the device within a characteristic control range related to the flow rate through the valve and the pressure loss through the ventilation duct.
  • US 2020 124316 describes an air diffuser for controlling the direction and intensity of an airflow.
  • KR 2017 0133122 relates to an air diffuser with an integrated lighting device.
  • US 2017 016633 is related to an air conditioner.
  • the air conditioner has an opening in an external panel.
  • the opening forms a first air outlet, while a second air outlet is provided in the external panel.
  • KR 100 833 606 discloses an air diffuser with an adjustable damper.
  • GB 2 519 126 shows an elastic ventilation grille.
  • An object of the invention is to provide controllable valves or control valves of the aforementioned type which do not exhibit at least one of the drawbacks of the prior art.
  • a further object of the invention may be to provide an assembly with controllable valves or control valves of the aforementioned type in or on a ventilation duct.
  • Another object of the invention may be to provide an assembly comprising means to allow a user to adjust the control range of the compact controllable valve.
  • a further object of the invention may be to provide the means in or on the controllable valve in a compact manner.
  • Still another object of the invention may be to provide the means to be simply, non-destructively removable or replaceable.
  • the invention comprises an assembly for use in or on an air duct for ventilation of a building.
  • the assembly comprises a control valve or a controllable valve, e.g., a supply and/or exhaust valve.
  • the term "valve” thus used should be understood as a device for controlling the flow of a physical medium, by allowing it to pass unimpeded or partially blocking it.
  • the controllable valve comprises flow control means for controlling the flow of air through the valve and adjusting means to adjust the relative position of flow control means of the valve.
  • the flow control means comprise two sub-elements that can be positioned relative to each other with a free end facing the other sub-element.
  • the assembly further comprises an extension piece having a proximal side adapted to engage the free end of one of the sub-elements and an opposite distal side.
  • control range from 20 Pa to 60 Pa
  • control valve for 50 m 3 /h and a control valve for 25 m 3 /h, respectively
  • control range of the controllable valve can be adjusted.
  • This is particularly advantageous for a compact controllable valve or control valves with a minimum build-in height, for example when the height of the controllable valve in the axial direction A is smaller than the diameter or radius of the outer surface of the controllable valve.
  • the size and/or shape of the space between the flow control means will be adapted. However, it remains possible to move the flow control means into different relative positions with the aid of the adjusting means. This will adjust the control range for a specific flow rate.
  • extension piece engages on the free end of the flow control means, it can be provided in a compact manner with respect to external elements which are not located in an adjustable valve but, for instance, are located separately in the air duct. Because the controllable valve and the extension piece are designed as an assembly, it is possible to switch simply and non-destructively between the controllable valve with and without engaging extension piece.
  • a first embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid assembly wherein the shape of the distal side substantially corresponds to the shape of at least a portion of the free end of the engageable sub-element. The shape of the space between the flow control means is hereby retained.
  • a second embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid assembly, wherein the shape of the proximal side substantially corresponds to the opposing shape of at least a portion of the free end of the engageable sub-element.
  • the proximal side and the free end can fit together well and can be provided in a more compact manner.
  • a third embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid valve assembly wherein the extension piece is formed by a flexible ring having a preexisting closed or open unstressed ring shape and having a majority of its length with an elastic modulus that allows the ring to be compressed from the unstressed shape into a stressed shape.
  • the ring may be adapted to be introduced into the controllable valve in a first stressed shape.
  • the ring may be adapted to be arranged in a second stressed shape in engagement with the free end and to retain the ring in the second stressed shape during engagement.
  • the engageable sub-element may be formed by an annular element, wherein, in crosssection, the curvature of the ring in unstressed shape is smaller than the curvature of the annular element and wherein, in cross-section, the curvature of the ring in the first and/or second stressed shape is greater than the curvature of the annular element.
  • the diameter of the ring in unstressed shape is greater than the diameter of the ring in stressed shape during insertion or engagement with the annular element.
  • the aforesaid valve assemblies wherein the extension piece is attached to the controllable valve, in particular the free end of the engageable sub-element, by means of fastening means, relate for instance to snap-on elements to form a clamping and dimensionally stable connection or magnetic elements to form a magnetic connection.
  • the extension piece can also be formed by a ring.
  • a fourth embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid valve assembly, wherein the engageable sub-element is formed by a disc-shaped element.
  • the curvature of the ring in unstressed shape is greater than the curvature of the disc-shaped element and the curvature of the ring in the first and/or second stressed shape is less than the curvature of the disc-shaped element.
  • the diameter of the ring in unstressed shape is smaller than the diameter of the ring in stressed shape during insertion or engagement with the disc-shaped element.
  • the subelements comprise a central element and a peripheral element which are displaceable and positionable with respect to each other by means of the adjusting means.
  • the central flow control element has a free end facing the peripheral flow control element.
  • the peripheral flow control element has a free end facing the central flow control element.
  • the controllable valve comprises: a stator having an annular stator element adapted to be attached to the air duct; an outer rotor part provided in the space defined by the annular stator element; and an inner rotor part enclosed in the space between the stator and the outer rotor part, and the inner rotor part is connected to the stator and the outer rotor part.
  • the valve is adapted to adjust the axial position of the inner rotor part relative to the outer rotor part such that the cross-section of an air passage between the outer rotor part and the inner rotor part is changed by rotating the outer rotor part.
  • the invention comprises a mechanical ventilation system comprising a ventilation device connected to an air duct in which an assembly as described above is provided.
  • the air duct may have a substantially circular cross-section with preferably a diameter of 80, 100, 125 or 160 mm.
  • the inside of the air duct and the outside of the housing may have a similar cross-section, for example a substantially circular cross-section, or different cross-sections, for example a substantially circular cross-section and a substantially polygonal cross-section.
  • the invention comprises a building comprising a ventilation system as described above.
  • the invention comprises a method of forming an aforesaid assembly, comprising the steps of: providing a controllable valve with flow control means including two sub-elements that can be positioned relative to each other with a free end facing the other subelement, providing an extension piece with a proximal side adapted to engage the free end of one of the sub-elements and an opposite distal side.
  • a seventh embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid method, comprising the steps of: reducing the cross-section of the extension piece; introducing the extension piece into the controllable valve; and widening the crosssection of the extension piece.
  • An eighth embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid method, comprising the steps of: widening the cross-section of the extension piece; introducing the extension piece into the controllable valve; and reducing the crosssection of the extension piece.
  • the extension piece may be formed by a ring having a closed or open ring shape.
  • the reduction step may comprise deforming the ring into a ring shape with a smaller diameter and/or the widening step deforming the ring into a ring shape with a larger diameter.
  • a ninth embodiment which may occur in conjunction with the other aspects and embodiments of the invention described herein, relates to an aforesaid method wherein the extension piece is formed by a flexible ring having a pre-existing closed or open unstressed ring shape and having a majority of its length with a first elastic modulus allowing the ring to be compressed from the unstressed shape into a stressed shape, comprising the steps of: transforming the ring from the unstressed ring shape into the stressed shape; introducing the ring in the stressed shape into the controllable valve; releasing the ring so that it transforms itself back into the unstressed shape; and guiding the ring during the releasing step to position the ring against the free end of the sub-element.
  • Figure 1 shows an exploded view of a valve according to an embodiment of the invention
  • Figure 2A is a perspective view of the outer rotor part of the valve shown in Figure 1;
  • Figure 2B shows a cross-sectional view of the outer rotor part shown in Figure 2A;
  • Figure 3A shows in a perspective view the inner rotor part shown in Figure 1;
  • Figure 3B shows a top view of the inner rotor part shown in Figure 5A;
  • Figure 4A is a perspective view of the stator shown in Figure 3.
  • Figure 4B shows a cross-sectional view of the stator shown in Figure 6A;
  • Figure 5A is a perspective view of an assembly according to an embodiment of the invention in a first step of a method according to an embodiment of the invention
  • Figure 5B shows the assembly shown in Figure 5A in a first step of the method
  • Figure 5C shows the assembly shown in Figure 5A in a first step of the method
  • Figure 6A shows an exploded view of the valve of the assembly shown in Figure 5A
  • Figure 6B shows an exploded view of the valve of the assembly shown in Figure 5C;
  • first,” “second,” “third” and the like are used in the specification and in the claims to distinguish between similar elements and not necessarily to describe a sequential or chronological order. The terms are interchangeable under appropriate circumstances and the embodiments of the invention can be implemented in sequences other than those described or illustrated herein.
  • top,” “bottom,” “over,” “below” and the like in the specification and claims are used for illustrative purposes and not necessarily to describe relative positions. The terms so used are interchangeable under appropriate circumstances, and the embodiments of the invention described herein may be implemented in orientations other than those described or illustrated herein.
  • FIGS 1, 2A-B, 3A-B and 4A-B show a valve 100 for use in an air duct, or at an end of the air duct, of a mechanical or natural ventilation system of a home or the like.
  • the valve 100 comprises a stationary part 130, also referred to as a "stator”, adapted to be stationarily connected to the housing 40 or the air duct, and a rotatable valve assembly 110, 120, also referred to as a "rotor”, rotationally connected to said stator 130.
  • the rotatable valve assembly comprises an inner rotor part 120 and an outer rotor part 110.
  • the outer rotor part 110 is formed by an annular outer rotor element 111 which is connected to a central cup-shaped element 113 via a plurality of spacers 115, preferably positioned symmetrically around the cup-shaped element 113, at the upper end of the outer rotor element 111.
  • the outer rotor element 111 comprises a plurality of parallel slots 112 extending from the lower end of the annular element 111 arranged to face the stator 130 and said slots 112 are preferably positioned symmetrically around the cup-shaped element 113.
  • the outer rotor element 111 further comprises a plurality of recessed surfaces 116 on the outer surface extending angularly between the slots 112 and a plurality of corrugated surfaces 117 on the lower end of the outer surface extending angularly between the slots 112.
  • a connection element 114 may be provided for connection to an electrical body.
  • the inner rotor part 120 is formed by an annular inner rotor element 121.
  • the inner rotor element 124 which is arranged to face the outer rotor part 110 and away from the stator 130, the inner rotor part 120 is provided with an annular element 126 extending inwardly from the inner surface 122 of the inner rotor element and having a plurality of projections 125 on the outer surface 123 opposite the inner surface 122 of the annular element 121.
  • the plurality of projections 125 of the inner rotor part 120 and the plurality of parallel slots 112 of the outer rotor part 110 are positioned at corresponding angular positions in the angular direction, preferably arranged symmetrically about the respective annular element. As such, when the inner rotor part 120 is inserted into the outer rotor part 110, each projection 125 extends through a respective slot 112 to a widened portion of the projection 127 disposed outside the outer rotor part 110, whereby the width of the widened portion of the projection 127 is larger than the width of the respective slot 112.
  • the projection 125 will prevent movement of the inner and outer rotor parts 111, 121 relative to each other in a plane perpendicular to the axial direction A, e.g. by translation in the radial direction or by rotation in the angular direction.
  • the stator 130 is formed by an annular stator element 131 wherein an outer slot 134 is arranged on the outer surface 133 of the stator element 131 to receive the annular coil spring 140, shown in Figure 3, to mechanically retain the stator 130 in the air duct, and wherein at least one inner slot 135 is arranged on the inner surface 132 of the stator element 131 to receive and guide the plurality of projections 125 of the inner rotor part 120, at least one inner slot 135 is adapted to guide the plurality of projections 125 and thereby move the inner rotor part 120 axially when the plurality of projections 125 is rotated about the central axis A.
  • the stator 130 further comprises an annular element 136.
  • the annular element 136 On an underside of the annular element 136, the annular element 136 is provided with visual indications as to the axial position of the at least one inner slot 135 at a predetermined angular position, and, on the opposite upper side, the annular element 136 is adapted to receive the lower end of the outer rotor element 111 in an annular recess 137, as shown in Figure 1.
  • the stator 130 further comprises openings 138a, 138b of a locking mechanism and a ratchet mechanism, respectively, extending axially from the lower end of the stator element 131 to allow insertion of a complementary element by a user when installed and radially extending over the inner surface 132 to allow interaction between the complementary element and the outer surface of the outer rotor element 111.
  • locking means 150 By inserting locking means 150 into the opening 138a, the locking means 150 cooperate with the corrugated surface 117 of the outer rotor part 110 to lock the relative position between the stator 130 and the rotor parts 110, 120.
  • detent means 160 By inserting detent means 160 into the opening 138b, the detent means 160 cooperates with the corrugated surface 117 of the outer rotor part 110 to limit rotational movement between the stator 130 and the rotor parts 110, 120 to clockwise or counterclockwise movement.
  • the valve assembly By inserting locking means 150 into opening 138a, the valve assembly is moved from an unlocked configuration to a locked configuration and the rotational resistance related to the adjusting means is adjusted from a first predetermined value to a second, larger predetermined value.
  • the second value is predetermined such that the adjusting means, in the locked configuration, experience more rotational resistance than the rotational resistance between the valve 10, the annular coil spring 140 and the housing 40.
  • the stator element 131 further comprises a plurality of recessed holes 139 on its outer surface to receive a respective screw or the like 170 extending into a respective recessed surface 116 of the outer rotor element 111 to mechanically retain the outer rotor part 110, and thereby also the inner rotor part 120, within the annular stator element 131, i.e. in the space defined by the annular stator element 131 and the lower ring 136.
  • the screw 170 and recessed surfaces 116 further restrict the rotational movement of the outer rotor part 110 in the angular direction.
  • Figures 5A-C and 6A-B show an assembly comprising a valve 100 as shown in Figures 1, 2A-B, 3A-B and 4A-B (only the inner rotor part 120, 220 of the valve 100 is shown) and an extension piece 1000 in the form of a ring having a pre-existing open unstressed ring shape and having a majority of its length with a first elastic modulus allowing the ring to be compressed from the unstressed shape into a stressed shape.
  • Figure 5A shows the provision of the inner rotor part 220 of the controllable valve 100 with a peripheral flow control element 226 having a free end facing a central flow control element.
  • the central flow control element (not shown) may be formed by the cup-shaped element of the outer rotor element 110.
  • Figures 5A-B further illustrate providing the extension piece 1000 in an unstressed ring shape and transforming the ring from the unstressed ring shape into a first stressed ring shape having a reduced diameter. Thereafter, the ring in the stressed shape is inserted into the opening of the annular element 226 of the inner rotor part 220 and released so that it transforms itself back in the direction of the unstressed shape. This causes the extension piece 1000 to engage the free end of the peripheral flow control element 226.
  • Figures 6A-B show that as a result the diameter of the opening is reduced by the assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Sliding Valves (AREA)

Abstract

La présente invention concerne un ensemble s'utilisant dans un conduit d'air pour la ventilation d'un bâtiment. L'ensemble comprend une vanne de commande compacte ou une vanne pouvant être commandée, par exemple, une vanne d'alimentation et/ou d'échappement, pourvue de moyens de régulation de débit pour réguler le débit d'air à travers la vanne et de moyens de réglage pour régler la position relative des moyens de régulation de débit de la vanne. Les moyens de régulation de débit comprennent deux sous-éléments qui peuvent être positionnés l'un par rapport à l'autre de sorte qu'une extrémité libre fait face à l'autre sous-élément. L'ensemble comprend en outre une pièce de prolongement comportant un côté proximal conçu pour venir en prise avec l'extrémité libre de l'un des sous-éléments, et un côté distal opposé.
EP21839670.3A 2020-12-11 2021-12-10 Ensemble pour conduit d'air dans un système de ventilation Pending EP4259985A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20205912A BE1028876B1 (nl) 2020-12-11 2020-12-11 Samenstel voor een luchtkanaal in een ventilatiesysteem
PCT/IB2021/061568 WO2022123517A1 (fr) 2020-12-11 2021-12-10 Ensemble pour conduit d'air dans un système de ventilation

Publications (1)

Publication Number Publication Date
EP4259985A1 true EP4259985A1 (fr) 2023-10-18

Family

ID=74045371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21839670.3A Pending EP4259985A1 (fr) 2020-12-11 2021-12-10 Ensemble pour conduit d'air dans un système de ventilation

Country Status (3)

Country Link
EP (1) EP4259985A1 (fr)
BE (1) BE1028876B1 (fr)
WO (1) WO2022123517A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833606B1 (ko) * 2007-05-19 2008-05-30 주식회사 선일엔지니어링 공기조화용 디퓨져장치
GB2519126A (en) * 2013-10-10 2015-04-15 2Gdi Ltd Resilient ventilation grate
KR101698842B1 (ko) * 2015-07-17 2017-01-23 삼성전자 주식회사 공기조화기 및 그 제어방법
KR101851061B1 (ko) * 2016-05-25 2018-04-20 주식회사 비엘케이 조명기구 일체형 디퓨져
US11619418B2 (en) * 2018-10-17 2023-04-04 Illinois Tool Works Inc. Air diffuser

Also Published As

Publication number Publication date
BE1028876B1 (nl) 2022-07-12
WO2022123517A1 (fr) 2022-06-16
BE1028876A1 (nl) 2022-07-05

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