EP1836444B1 - Lüftungsvorrichtung - Google Patents

Lüftungsvorrichtung Download PDF

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Publication number
EP1836444B1
EP1836444B1 EP05813701A EP05813701A EP1836444B1 EP 1836444 B1 EP1836444 B1 EP 1836444B1 EP 05813701 A EP05813701 A EP 05813701A EP 05813701 A EP05813701 A EP 05813701A EP 1836444 B1 EP1836444 B1 EP 1836444B1
Authority
EP
European Patent Office
Prior art keywords
ventilating device
wall
regulating element
duct
channel
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.)
Expired - Lifetime
Application number
EP05813701A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1836444A1 (de
Inventor
Eckhard Kucharczyk
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.)
Siegenia Aubi KG
Original Assignee
Siegenia Aubi KG
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
Priority claimed from DE200520000549 external-priority patent/DE202005000549U1/de
Priority claimed from DE200520000553 external-priority patent/DE202005000553U1/de
Application filed by Siegenia Aubi KG filed Critical Siegenia Aubi KG
Priority to PL05813701T priority Critical patent/PL1836444T3/pl
Publication of EP1836444A1 publication Critical patent/EP1836444A1/de
Application granted granted Critical
Publication of EP1836444B1 publication Critical patent/EP1836444B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity

Definitions

  • the invention relates to a ventilation device according to the preamble of claim 1.
  • Ventilators have already become known in various designs.
  • a ventilation device in which in a channel, a control element in the form of an elastically deformable flap is mounted hanging. This is entrained by the volume flow against gravity and settles on a passage opening in the channel, so that it is partially or completely closed depending on the volume flow.
  • the control element is formed by a film which lays in front of the passage opening and which is brought back into the passage opening releasing opening position due to their elastic properties.
  • the from the DD 227 209 A1 and the DD 289 117 A5 known device comprises an L- or angular-shaped control element which is pivotally mounted in the channel. Due to the volume flow of the one leg is carried and locks the channel partially or completely. The other leg serves as a restoring weight, with which the open position of the control element is reached again.
  • the L- or angle-shaped control element is mounted on a knife edge, so that there is a comparatively simple and easy to move storage.
  • the application corresponds essentially to the DE 196 10 428 A1 in which a wing of a window cooperates with the frame via a seal.
  • the seal has a channel in the form of a bore, which can be closed by means of an elastic lip of the seal depending on the volume flow. Again, the provision is due to the elastic properties of effective as a control element lip.
  • the ventilation device is arranged in the rebate area of a window.
  • the ventilation device forms a channel in which the control element is arranged in the form of a flap.
  • a disadvantage of these known embodiments is that the control behavior of the ventilation devices only limited corresponds to the practical requirements. At very low pressure differences and the resulting flow rates, although the known devices ensure an exchange of air, a controlled control can not be achieved, since the control elements must be matched to the desired flow rate. In practice, therefore, the control elements often act only as check valves.
  • the control element consists of two sub-cylinders, in which a first sub-cylinder is pivotable in the comprehensive second sub-cylinder.
  • the first sub-cylinder has an inlet opening lying in the direction of flow and an outlet opening, which opens into the interior of the second sub-cylinder.
  • the second sub-cylinder is provided on its peripheral surface with openings which are connected to the outlet of the ventilation device.
  • the volume flow now acts on the first sub-cylinder then it is pivoted against the force of a restoring element in the second sub-cylinder, so that the openings in the lateral surface of the second sub-cylinder are partially closed and the volume flow is reduced accordingly.
  • the disadvantage here is the comparatively complicated structure of the ventilation device, which is adjustable by weights on the local conditions.
  • the EP 1 063 384 A1 discloses a ventilation device in which a volume flow limiter is arranged in a channel which connects the building exterior and the building interior.
  • the volume flow limiter consists of a closure element, a control element and a return element.
  • the closure element allows the ventilation device to be closed at the user's request.
  • a backflow closure element is provided, while draft-free ventilation is achieved by means of the volume flow element.
  • the volume flow element is arranged so that this is carried in the channel of the volumetric flow and when exceeding a certain value closes the channel. In this case, the volume flow element can only be adapted to the desired volume flow to a limited extent since, if the restoring force is too low, the channel is closed even at low flow volumes.
  • the invention is therefore based on the object deliver a simple as possible ventilation device ready, which has a balanced control behavior.
  • the solution to this problem is achieved by the means of the characterizing part of claim 1.
  • the arrangement causes an air cushion forms between the control element and the wall, which allows a complete closing of the channel only at a very large volume flow. At least part of the volume flow is thereby conveyed through the control element.
  • the ventilation device is comparatively simple and can be produced by only a few components.
  • control element is to be formed by a slide which is mounted on the wall.
  • the control element thereby receives approximately the shape of a valve, which has a very simple structure.
  • control element and the closure element are united in a single, substantially L- or U-shaped component, which is received displaceably in the channel, and that the openings in a first leg the component are mounted, which is aligned transversely to the flow direction wherein the closure element is formed by a second leg.
  • the control element and the closure element are thereby combined in a single component, which reduces the number of components required.
  • control element is a floating body, which is held by gravity in an opening position releasing the channel. As a result, otherwise necessary bearings of the control element can be omitted.
  • control element is a hinged flap.
  • the flap offers the advantage of greater tightness, as it has fewer degrees of freedom and allows for accurate registration relative to the perimeter walls of the channel.
  • the wall extends at an angle greater than 90 ° to the channel, as this, a pressure loss can be reduced.
  • Part of the delivered volume flow is always passed through the control element according to the invention, so that can be maximized at a pressure loss-free promotion of the maximum flow.
  • the channel is designed approximately rectangular.
  • the structure of the entire ventilation device is simplified by the fact that the wall is formed by the lying in the flow direction behind the flow restrictor channel.
  • a particular simplification can be achieved by the fact that the restoring element is formed by the standing under gravity control element itself.
  • the float is formed by the wall and the closure element is a lateral fold of the wall.
  • the float can be particularly easy to produce.
  • the float has a trough-shaped cross-section, in which the closure element is formed by a peripheral edge strip. This also improves the guidance of the float in the channel.
  • the channel forms a trough-shaped recess extending in the longitudinal direction of the ventilation device in the housing and the recess has a stepped edge with at least one aperture or opening running in the direction of flow.
  • the inclusion of the float is thereby ensured as well as the provision of the opening to be covered by the leg having as a closure element.
  • a guide of the float in the channel can be provided that in the housing at least one coaxial with the openings aligned pin is provided, which passes through the float in a designated hole.
  • the wall is received in the remote edge of the recess. Then, namely, the wall can be formed as a separate component and at the same time cover the recess to form the channel and set the float in the channel.
  • a cost-effective production of the ventilation device can be achieved by the float is formed of a thin-walled plastic molded part.
  • the flap is damped by a spring in the closing direction of the ventilation device. Disturbing rattling noises of the ventilation device are adjusted. But also the question of the installation position whether down horizontally, vertically or horizontally above is unnecessary, since the spring holds the flap in the open starting position.
  • the spring is formed from the thin-walled plastic material of the flap by freely acting webs, wherein directed at the free end of the webs on the side facing the wall cams are formed, which are in constant operative connection with the wall ,
  • the flap and the spring are thereby combined in a single component, which reduces the number of components required.
  • the spring characteristic can be influenced.
  • the control characteristic also changes. A change in length of the cams could thus decisively influence the control characteristic described above in a simple and cost-effective manner.
  • the basic schematic structure of the ventilation device 1 can be seen, which has a channel 2, which represents at least a part of a communication path between a building outside air inlet and a building inside air outlet.
  • a flow restrictor is arranged, which is generally designated 3 here.
  • the volume flow restrictor 3 has the task to limit the volume flow conducted through the channel 1 in size, in order to avoid otherwise unavoidable draft phenomena.
  • the volume flow limiter 3 consists of a movable control element 4, a closure element 5 and a wall 6. Furthermore, there are still Stops 7 are provided for the closure element 5, which may result, for example, by the cross section of the channel 2.
  • control element 4 While the control element 4 is movably mounted in the channel 2 and under the action of a return element such as a in Fig. 1 spring, not shown, is displaced in the direction of the F-signing arrow in the open position, the wall 6 and the stops 7 are fixedly mounted in the channel 2. In the open position, air flowing in from the outside of the building into the channel 2 can pass through the volume flow limiter 3 along the indicated arrows 8 and 9. For this purpose, on the one hand between the control and the closure element 4, 5 and on the other hand the channel 2 is given sufficient clearance. On the other hand, the control element 4 has one or more openings 10, which also allow a passage along the arrow 8.
  • the control element 4 If the volume flow conveyed along the arrows 8 and 9 exceeds a certain level, the control element 4 is displaced in the direction 11 counter to the restoring force F. This builds up behind the control element 4 on the wall 6, a backwater, which also acts in the direction of the restoring force F. As a result, the application of the control element 4 is delayed to the wall 6, if equal to the available cross-section in the channel 2 is already limited.
  • control element 4 With further increasing volume flow, the control element 4 finally enters the in Fig. 2 shown closure position in which the closure elements 5 abut the stops 7. The volume flow is thereby interrupted and the restoring force F will move the control element and the closure element in the left direction in the drawing, whereby the channel cross-section is released again.
  • the number of apertures and the total area of the apertures in relation to the remaining component surface of the control element 4 can be chosen to suit the expected volume flow.
  • the direction of flow 12 in the region of the openings 10 is also the direction of movement of the regulating and closing element 4, 5.
  • the control element 4 and the Closure element 5 is combined in a substantially L- or U-shaped component 13.
  • the openings 10 are mounted in a first leg 14 of the component 13, which is oriented transversely to the flow direction 12, wherein the closure element 5 - or the closure elements 5 of the second Legs 15 are formed.
  • the closure element 5 and the control element 4 are only indirectly connected.
  • the control element 4 is formed by a slide which is mounted on the wall 6.
  • the web 16 passes through the wall 6 in a bore or an opening 17 and connects the control element 4 with the closure element 5.
  • the closure element 5 is in turn associated with the stops 7 of the channel 2. Again, the flow is on the one hand passed by the opening 10 of the control element 4 and the possibly still existing lateral free spaces on the flow restrictor 3.
  • the required return element can be effective between the wall 6 and the control element 4, for example, in the form of a spring.
  • the channel 2 is substantially perpendicular and the control element 4 is under the influence of gravity in the drawing to the left force and is held in its open position.
  • the control element 4 is a floating body, which must be correspondingly lightweight or built but can be at least partially relieved by means of an additional energy storage.
  • the channel 2 is designed approximately at right angles and the control element 4 is again embodied in one piece with the closure element 5 as an L-shaped component.
  • the opening 10 is arranged, while the second leg 15 is adapted as a closure element 5 to the dimension of the channel 2 so that it can be completely closed by the leg 15.
  • the control element 4 is displaced with increasing flow, this gets closer and closer to the wall 6, which is formed here by a boundary wall of the channel 2.
  • a resulting between the control element 4 and the wall 6 air cushion prevents premature closure of the channel 2. From the Fig. 5 It is still clear that in this embodiment, the volume flow is conveyed exclusively along the opening 10.
  • Fig. 6 is a further embodiment of the invention shown schematically. It is provided that the control element 4 is a pivotable flap 20 is also formed with an L-shaped cross-section, which is hinged to a boundary wall of the channel 2 pivotally.
  • the wall 6 is again formed directly by a boundary wall of the channel 2. In order to reduce the pressure loss in the channel 2 but it is provided that the wall 6 extends at an angle greater than 90 ° to the inflowing portion of the channel 2. The volume flow is thereby already deflected according to the conveying direction.
  • the wall 6 is formed by the lying in the flow direction behind the flow restrictor 3 2 channel.
  • the flap 20 is hinged to the left in the drawing channel wall, for example via a film hinge.
  • the second leg 15 of the flap 20 is received in the excellent opening position in a groove 21 of the channel 2, so that the full cross-sectional width of the channel 2 is maintained.
  • This also gives the possibility to additionally guide and store the flap 20. Namely, the leg 15 forms an abutment for the flap 20, which can thereby be guided at its freely movable end.
  • the restoring element is formed by the standing under the influence of gravity control element 4 itself. Additional energy storage or similar are therefore dispensable but as described below, for example, depending on the installation situation and controllability of the flow rate make the ventilation device 1 versatile.
  • FIGS. 7 and 8 are the funded volume flows depending on the pressure difference of a ventilation device, for example, the type of the DE 199 29 133 C1 and compared according to the invention.
  • a ventilation device for example, the type of the DE 199 29 133 C1 and compared according to the invention.
  • this locks the duct already very early, all further increases in volume flow result for this purpose almost linearly and are the result of unavoidable leaks in the ventilation device.
  • the volume flow of the ventilation device 1 is shown, which in its size dimensions about the in Fig. 7 represented corresponds. It can be seen that the control range can be done over a much larger pressure range. At the same time due to the design of the closure element 5, a greater tightness of the entire ventilation device. 1 be achieved.
  • the area in which the volumetric flow is approximately linear to the pressure difference is much greater than that in the Fig. 7 illustrated conventional ventilation device.
  • Crucial is that the curve in the Fig. 8 a radius, ie a no longer linearly increasing with increasing pressure difference volume flow, which then merges into a turn linearly extending section. In the radius, the volume flow limiter 3 of the ventilation device 1 actually controls the volume flow without prematurely blocking it off.
  • the ventilation device 1 has a housing 25.
  • the channel 2 is formed by a flat trough 26, on the underside of an air inlet 27 is provided in the channel 2, the flap 20 is pivotally mounted on the one hand consists of a shoulder 23, on which a longitudinal edge of the flap 20 rests.
  • the shoulder 23 is opposite to an edge 24 of the housing 25 back.
  • the wall 6, not shown here is mounted in the form of a plate.
  • the flap 20 is fixed in the direction of the air inlet 27 and in the opposite direction.
  • the flap 20 is held by means of the leg 15, which dips into the groove 21.
  • the Fig. 10 shows the ventilation device 1 after Fig. 9 in an exploded view.
  • the housing 25 is designed as a plastic molded part and is - as already described above - provided on the channel 2 with an air inlet 27, which open into the channel 2.
  • the channel 2 is designed here angularly, so that the flow occurs as indicated by the arrows 28 and 29 from the bottom of the ventilation device 1 and deflected by approximately 90 ° at the front lying in the drawing openings 30 again.
  • the flap 20 is arranged, which carries at its longitudinal ends projecting pins 31, 32. These pins 31, 32 are designed for mounting the flap 20 and associated recesses 33, 34 in the channel 2.
  • the recesses 33,34 are substantially interruptions of the edge 24 at the longitudinal ends of the channel 2, so that the housing 25 can be easily removed from the mold during manufacture.
  • the openings or openings 10 are visible.
  • a projecting edge 36 is associated with the edge 37 in the open position, so that the flap 20 also receives a corresponding position limitation here.
  • the channel 2 is closed by the wall 6, which is seated in this embodiment on the skirt 35 and flush with the edge. In the assembled state, the ventilation device 1 is still supported with the projecting webs 38 relative to the component to which the ventilation device 1 is attached
  • the webs 38 are based on the rebate surface of the window. This in turn forms part of the channel 2 and the air duct.
  • FIG. 11 to 14 out Another embodiment of the ventilation device 1 is evidently from the Fig. 11 to 14 out.
  • the housing 5 a channel 2, in which the air is diverted substantially at right angles, as indicated by the arrows 28 and 29 in Figure 13 shown.
  • the channel 2 has the shape of a trough, in the bottom of the air inlets 27 are mounted.
  • the control and the closure element 4, 5 is arranged as a float. This in turn has openings or openings 10, which are designed as cylindrical holes in the illustrated embodiment.
  • the channel 2 is through the wall 6 - as in Fig. 11 Visible - limited and has an opening 30.
  • the opening 30 is formed essentially by a relative to the edge 24 of the channel 2 recessed wall.
  • the control element 4 or the float is as in the Fig. 14 recognizable formed from a thin-walled plastic molding.
  • the regulating and closing element 4, 5 is on the channel 2 tuned so that it is freely movably mounted therein and can be moved by a volume flow in the channel 2.
  • the regulating element 4 acting as a closure element 5 has a lateral limb 15 which faces the opening 30 to the side of the channel 2 and is directed counter to the flow direction 12.
  • the openings 10 in the float is the wall 6 opposite, so that the penetrating through the ventilation device 1 volume flow into the air inlets 27 and can pass through the apertures 10, but is diverted approximately at right angles on the wall 6 and through the opening 30 again can escape the channel 2. If the volume flow exceeds a certain size, then the float is carried along. The leg 15 is thereby displaced into the region of the opening 30 and closes it as a function of the volume flow, until the volume flow is completely shut off when the opening 30 is closed.
  • the apertures 10 in the control element 4 or floating body cause it, that forms an air cushion between the float and the wall 6, which generates a restoring force, which is also dependent on the flow rate.
  • the float can be formed by a plate, wherein the leg 15 is a lateral fold of the plate. But better guidance in the channel 2 is achieved in that the float has a trough-shaped cross-section, in which the leg 15 is at least partially formed circumferentially, as from the FIGS. 13 and 14 seen.
  • the channel 2 forming, extending in the longitudinal direction of the ventilation device 1 trough-shaped or trough-shaped recess has the already mentioned above a stepped edge 24 which is broken in the flow direction of the opening 30.
  • the edge 24 thus provides an abutment and a contact surface for the wall 6 formed as a separate component (FIG. Fig. 13 ).
  • the wall 6 is thereby mounted in the housing 25 without overhanging the frame fold associated bottom or edge 24.
  • a coaxial with the apertures 10 aligned pin 39 is provided which passes through the float at a designated bore 40.
  • the pin 39 is an abutment.
  • FIGS. 15 and 16 is a spring 41 in the flap 20 according to the embodiment of the ventilation device 1 of Fig. 9 . 10 shown.
  • the cams 44 are designed so that they are in constant operative connection to the wall 6. This causes the flap 20 is positioned without effect of the flow in a spring-loaded open starting position in the ventilation device 1 and tries to return in the installed state depending on the effect of the flow in the open starting position.
  • the control characteristic can be adjusted. But it can also be made other changes of the spring 41 to regulate the flow in addition. For example, by the wall thickness or the length of the webs 42nd

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  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ventilation (AREA)
  • Seal Device For Vehicle (AREA)
  • Air-Flow Control Members (AREA)
  • Massaging Devices (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Liquid Crystal (AREA)
EP05813701A 2005-01-13 2005-11-28 Lüftungsvorrichtung Expired - Lifetime EP1836444B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05813701T PL1836444T3 (pl) 2005-01-13 2005-11-28 Urządzenie wentylacyjne

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200520000549 DE202005000549U1 (de) 2005-01-13 2005-01-13 Lüftungsvorrichtung
DE200520000553 DE202005000553U1 (de) 2005-01-13 2005-01-13 Lüftungsvorrichtung
PCT/EP2005/056261 WO2006074839A1 (de) 2005-01-13 2005-11-28 Lüftungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1836444A1 EP1836444A1 (de) 2007-09-26
EP1836444B1 true EP1836444B1 (de) 2009-09-02

Family

ID=35695955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813701A Expired - Lifetime EP1836444B1 (de) 2005-01-13 2005-11-28 Lüftungsvorrichtung

Country Status (6)

Country Link
EP (1) EP1836444B1 (pl)
AT (1) ATE441819T1 (pl)
DE (1) DE502005008076D1 (pl)
DK (1) DK1836444T3 (pl)
PL (1) PL1836444T3 (pl)
WO (1) WO2006074839A1 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009013474B4 (de) 2009-03-19 2011-05-12 Enbema Becks Gbr (Vertreten Durch Christel Becks) Fensterfalzlüfter mit Dämpfungsfeder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29713806U1 (de) * 1997-08-04 1997-12-04 Pohl, Benedikt, 26871 Papenburg Belüftungseinrichtung für Fensterelemente
DE19929133C2 (de) * 1998-06-25 2001-06-28 Christel Becks Kunststofffenster aus Flügel und Blendrahmen
BE1012588A3 (nl) * 1999-04-08 2000-12-05 Parys Remi E Van Zelfregelend verluchtingsrooster.
EP1063384A3 (de) * 1999-06-21 2002-09-04 Siegenia-Frank Kg Lüftungsvorrichtung

Also Published As

Publication number Publication date
DK1836444T3 (da) 2009-12-21
EP1836444A1 (de) 2007-09-26
DE502005008076D1 (de) 2009-10-15
ATE441819T1 (de) 2009-09-15
PL1836444T3 (pl) 2010-02-26
WO2006074839A1 (de) 2006-07-20

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