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DE102010042163A1 - Venting device, particularly for use in motor vehicle, has frame, which is made of plastic and movable non-return flap, which is made of plastic, where non-return flap is connected with frame through welded connection - Google Patents

Venting device, particularly for use in motor vehicle, has frame, which is made of plastic and movable non-return flap, which is made of plastic, where non-return flap is connected with frame through welded connection Download PDF

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Publication number
DE102010042163A1
DE102010042163A1 DE102010042163A DE102010042163A DE102010042163A1 DE 102010042163 A1 DE102010042163 A1 DE 102010042163A1 DE 102010042163 A DE102010042163 A DE 102010042163A DE 102010042163 A DE102010042163 A DE 102010042163A DE 102010042163 A1 DE102010042163 A1 DE 102010042163A1
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DE
Germany
Prior art keywords
frame
plastic
venting device
welded
return valve
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.)
Withdrawn
Application number
DE102010042163A
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German (de)
Inventor
Eckhard Dörzbach
Walter Lang
Jürgen Neuser
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.)
Gessmann GmbH and Co KG
Original Assignee
Gessmann GmbH and Co 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.)
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Publication date
Application filed by Gessmann GmbH and Co KG filed Critical Gessmann GmbH and Co KG
Priority to DE102010042163A priority Critical patent/DE102010042163A1/en
Publication of DE102010042163A1 publication Critical patent/DE102010042163A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/248—Air-extractors, air-evacuation from the vehicle interior
    • B60H1/249—Air-extractors, air-evacuation from the vehicle interior using one-way valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2012/00—Frames

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The venting device (1) has a frame (2), which is made of plastic and a movable non-return flap (3), which is made of plastic. The non-return flap is connected with the frame through a welded connection (4). The non-return flap is formed of elastomer. The frame is formed of thermoplastic plastic.

Description

Die vorliegende Erfindung betrifft eine Entlüftungseinrichtung, insbesondere in einem Kraftfahrzeug, mit einem aus Kunststoff ausgebildeten Rahmen und mit zumindest einer beweglichen Rückschlagklappe aus Kunststoff gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft außerdem ein mit einer derartigen Entlüftungseinrichtung ausgestattetes Kraftfahrzeug.The present invention relates to a ventilation device, in particular in a motor vehicle, with a frame formed of plastic and at least one movable plastic check valve according to the preamble of claim 1. The invention also relates to a motor vehicle equipped with such a ventilation device.

Aus der DE 203 16 536 U1 ist eine gattungsgemäße Entlüftungseinrichtung für die Fahrzeugentlüftung bekannt, mit einem Rahmen, in welchem mindestens eine Ausströmöffnung gebildet ist. Diese wird von einem Ventilsitz umgeben und kann durch eine zugehörige Ventilklappe (Rückschlagklappe) geschlossen werden. Die Ventilklappe ist dabei aus einem elastisch federnden Material und derart angebracht, dass eine Rückstellkraft erzeugt wird, welche die Ventilklappe gegen den Ventilsitz beaufschlagt. Die Befestigung der Ventilklappe am Rahmen erfolgt mittels einer Befestigungsklammer.From the DE 203 16 536 U1 a generic venting device for vehicle ventilation is known, with a frame in which at least one outflow opening is formed. This is surrounded by a valve seat and can be closed by an associated valve flap (check valve). The valve flap is made of an elastically resilient material and mounted such that a restoring force is generated, which acts on the valve flap against the valve seat. The attachment of the valve flap on the frame by means of a mounting bracket.

Aus der DE 10 2006 056 868 A1 ist eine Rückluftsperre zur Entlüftung eines Innenraums eines Kraftfahrzeugs bekannt, mit einem Rahmen oder Gehäuse aus einem ersten Kunststoffmaterial und einer Ventilklappe aus biegsamem Material, das in einem Bereich mit dem Rahmen verbunden ist und in anderen Bereichen an einer Dichtfläche des Rahmens anliegt, sofern die Ventilklappe in Ruhestellung ist. Diese Ventilklappe hebt von der Dichtfläche ab, wenn sie einem Druckunterschied ausgesetzt ist, wobei die Ventilklappe als dünne Platte aus einem geschlossenporigen, geschäumten Material geformt ist. Hierdurch soll die Ventilklappe in geschlossenem Zustand möglichst dicht an der Dichtfläche anliegen und zugleich nach Möglichkeit keine oder nur geringfügige Geräusche erzeugen.From the DE 10 2006 056 868 A1 a return air lock for venting an interior of a motor vehicle is known, with a frame or housing made of a first plastic material and a valve flap made of flexible material, which is connected in one area with the frame and in other areas on a sealing surface of the frame, provided the valve flap is at rest. This valve flap lifts off the sealing surface when subjected to a pressure differential, the valve flap being formed as a thin plate of closed-cell, foamed material. As a result, the valve flap should lie as close as possible to the sealing surface in the closed state and at the same time produce no or only slight noise as far as possible.

Schließlich ist aus der DE 20 2007 006 724 U1 eine Entlüftungsklappe zur Entlüftung eines Innenraumes eines Kraftfahrzeugs bekannt, mit einem aus einem ersten Material bestehenden Rahmen und wenigstens einer Rückschlagklappe, wobei an den Rahmen ein umlaufendes Federelement angeformt ist, das zumindest in Teilbereichen eine Dichtung aus einem zweiten Material aufweist. Hierdurch soll eine Entlüftungsklappe geschaffen werden, die eine einfache und kostengünstige Herstellung sowie eine zuverlässige Abdichtung ermöglicht.Finally, out of the DE 20 2007 006 724 U1 a ventilation flap for venting an interior of a motor vehicle known, comprising a frame consisting of a first material and at least one non-return valve, wherein on the frame a circumferential spring element is formed, which has a seal made of a second material at least in some areas. As a result, a ventilation flap is to be created, which allows a simple and cost-effective production and a reliable seal.

Bei den aus dem Stand der Technik bekannten Entlüftungseinrichtungen werden die Rückschlagklappen üblicherweise über Schraub-, Klammer- oder Clipsverbindungen mit einem diese kragenden Rahmen verbunden, was vergleichsweise aufwändig und teuer ist.In the venting devices known from the prior art, the check valves are usually connected via screw, staple or clip connections with a cantilevered frame, which is relatively complicated and expensive.

Die vorliegende Erfindung beschäftigt sich mit Problem, für eine Entlüftungseinrichtung der gattungsgemäßen Art eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die sich insbesondere für eine einfache und kostengünstige Herstellung auszeichnen.The present invention is concerned with the problem of providing for a venting device of the generic type an improved or at least one alternative embodiment, which are particularly suitable for a simple and cost-effective production.

Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.

Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, eine Rückschlagklappe einer Entlüftungseinrichtung an einen Rahmen dieser Entlüftungseinrichtung mittels einer Schweißverbindung anzubinden und nicht wie bisher üblich, mittels beispielsweise aufwändig zu montierenden und teuren Klammern. Eine derartige Schweißverbindung lässt sich einerseits fertigungstechnisch einfach herstellen und gewährleistet andererseits eine zuverlässige Verbindung der Rückschlagklappe mit dem Rahmen, wodurch insbesondere auch eine hohe Dichtfunktion gewährleistet werden kann. Von besonderem Vorteil ist jedoch, dass im Unterschied zum Stand der Technik zusätzliche Befestigungselemente, wie beispielsweise Befestigungsklammern, entfallen, wodurch sich einerseits die Teilevielfalt reduziert und andererseits der Montageaufwand verringert. Insgesamt lassen sich dadurch die Kosten zur Herstellung einer derartigen Entlüftungseinrichtung deutlich reduzieren.The present invention is based on the general idea of connecting a non-return valve of a venting device to a frame of this venting device by means of a welded connection and not, as usual, by means of, for example, expensive to install and expensive clamps. On the one hand, such a welded connection can be easily manufactured and, on the other hand, ensures a reliable connection of the non-return flap to the frame, as a result of which, in particular, a high sealing function can be ensured. Of particular advantage, however, that in contrast to the prior art additional fasteners, such as mounting brackets, omitted, which on the one hand reduces the variety of parts and on the other hand reduces the assembly cost. Overall, this can significantly reduce the costs for producing such a venting device.

Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung, ist die Schweißverbindung mittels Ultraschallschweißen hergestellt. Aus dem Ultraschallschweißen können Kunststoffe, insbesondere thermoplastische Kunststoffe miteinander verschweißt werden, wobei die nötige Energie durch eine hochfrequente mechanische Schwingung erreicht wird, welche zwischen den zu verschweißenden Bauteilen durch Molekular- und Grenzflächenreibung entsteht. Generell gehört somit das Ultraschallschweißen eigentlich zur Gruppen der Reibschweißungen. Erzeugt wird die erforderliche Ultraschallfrequenz mit Hilfe eines Hochfrequenzgenerators, der die Netzspannung in eine Hochfrequenz umwandelt. Durch ein geschirmtes Kabel wiederum wird die Hochfrequenzleistung zu einem Ultraschallwandler übertragen, der beispielsweise mit dem piezoelektrischen Effekt oder einem magnetostriktiven Effekt arbeitet. Die erzeugten Schwingungen werden dabei unter Druck auf das zu schweißende Werkstück übertragen, wobei der zu schweißende Werkstoff aufgrund der Temperaturerhöhung erweicht und schmilzt. Generell zeichnet sich das Ultraschallschweißen durch sehr geringe Schweißzeiten und eine hohe Wirtschaftlichkeit aus. In an advantageous development of the solution according to the invention, the welded connection is produced by means of ultrasonic welding. From the ultrasonic welding plastics, especially thermoplastics can be welded together, the necessary energy is achieved by a high-frequency mechanical vibration, which arises between the components to be welded by molecular and interface friction. In general, therefore, ultrasonic welding actually belongs to the groups of friction welding. The required ultrasound frequency is generated by means of a high frequency generator, which converts the mains voltage into a high frequency. By a shielded cable turn the high-frequency power is transmitted to an ultrasonic transducer, which works for example with the piezoelectric effect or a magnetostrictive effect. The vibrations generated are transferred under pressure to the workpiece to be welded, wherein the material to be welded softens and melts due to the increase in temperature. In general, ultrasonic welding is characterized by very short welding times and high cost-effectiveness.

Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung sind am Rahmen zumindest zwei Zapfen angeordnet, die durch entsprechende Ausnehmungen an der Rückschlagklappe hindurchgreifen, wobei die Zapfen nach dem Herstellen der Schweißverbindung einen umgeformten Kopf aufweisen, dessen Durchmesser größer ist als der Durchmesser der zugehörigen Ausnehmung. Hier wird die erfindungsgemäße Schweißverbindung somit zusätzlich durch eine mechanische Verbindung, nämlich die Zapfenverbindung, unterstützt. Zum Fixieren der Rückschlagklappe am Rahmen der Entlüftungseinrichtung wird die Rückschlagklappe zunächst mit ihren Ausnehmungen über die rahmenseitig angeordneten Zapfen geführt und anschließend ein entsprechender Schweißstempel auf die Zapfen gedrückt, wodurch sich bei diesen ein nietähnlicher Kopf bildet. Die Anzahl der Zapfen je Rückschlagklappe kann dabei individuell gewählt werden. Generell kann neben dem reinen Umformen des Kopfes des Zapfens auch ein Verschweißen desselben mit einem Rand der Ausnehmung der Rückschlagklappe erfolgen, wodurch die Verbindung zusätzlich verstärkt wird.In an advantageous development of the solution according to the invention at least two pins are arranged on the frame, which pass through corresponding recesses on the non-return valve, wherein the pins after the production of the welded joint have a deformed head whose diameter is greater than the diameter of the associated recess. Here, the welded joint according to the invention is thus additionally supported by a mechanical connection, namely the pin connection. To fix the non-return valve on the frame of the venting device, the non-return valve is first performed with their recesses on the frame side arranged pins and then pressed a corresponding welding die on the pins, which forms a rivet-like head in these. The number of pins per non-return valve can be selected individually. In general, in addition to the mere forming of the head of the pin and a welding of the same with an edge of the recess of the non-return valve, whereby the compound is additionally reinforced.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.

Dabei zeigen, jeweils schematisch,Show, in each case schematically,

1 eine erfindungsgemäße Entlüftungseinrichtung in einer Ansicht, 1 a ventilation device according to the invention in a view,

2a eine Schnittdarstellung durch eine über eine Schweißverbindung an einem Rahmen der Entlüftungseinrichtung angeordnete Rückschlagklappe, 2a a sectional view through a arranged via a welded connection to a frame of the venting non-return valve,

2b eine Darstellung wie in 2a, jedoch zusätzlich mit einer zugehörigen Schweißvorrichtung, 2 B a representation like in 2a but additionally with an associated welding device,

3a eine weitere mögliche Ausführungsform der Schweißverbindung mittels eines Zapfens vor dem Herstellen der Schweißverbindung, 3a another possible embodiment of the welded connection by means of a pin before the production of the welded connection,

3b eine Darstellung wie in 3a, jedoch nach dem Herstellen der Schweißverbindung, 3b a representation like in 3a but after making the weld,

4a eine mögliche Ausführungsform des Rahmens mit einer Schweißkante vor dem Herstellen der Schweißverbindung mit der Rückschlagklappe, 4a a possible embodiment of the frame with a welding edge before establishing the welded connection with the non-return flap,

4b eine Darstellung wie in 4a, jedoch nach dem Herstellen der Schweißverbindung. 4b a representation like in 4a but after making the weld joint.

Entsprechend den 1 bis 4, weist eine erfindungsgemäße Entlüftungseinrichtung 1, die beispielsweise in einem Kraftfahrzeug zur Entlüftung eines Innenraums einsetzbar ist, einen aus Kunststoff ausgebildeten Rahmen 2 sowie zumindest eine bewegliche Rückschlagklappe 3, ebenfalls aus Kunststoff auf. Erfindungsgemäß ist nun die zumindest eine Rückschlagklappe 3 über eine Schweißverbindung 4 mit dem Rahmen 2 verbunden. Die Rückschlagklappe 3 kann dabei beispielsweise aus einem Elastomer ausgebildet sein, wogegen der Rahmen 2 ebenfalls aus einem Elastomer oder aber aus einem thermoplastischen Kunststoff, insbesondere aus einem thermoplastischen Kunststoff, ausgebildet sein kann. Hergestellt wird die erfindungsgemäße Schweißverbindung 4 vorzugsweise mittels Ultraschallschweißen, wozu eine Schweißvorrichtung 5 erforderlich ist.According to the 1 to 4 , Has a venting device according to the invention 1 , which is used for example in a motor vehicle for venting an interior, a plastic frame formed 2 and at least one movable non-return valve 3 , also made of plastic. According to the invention is now at least one non-return valve 3 over a welded joint 4 with the frame 2 connected. The non-return valve 3 can be formed for example of an elastomer, whereas the frame 2 may also be made of an elastomer or of a thermoplastic material, in particular of a thermoplastic material. The welded joint according to the invention is produced 4 preferably by means of ultrasonic welding, including a welding device 5 is required.

Gemäß den 2 bis 4 sind unterschiedliche Ausführungsformen der möglichen Schweißverbindung 4 dargestellt, wobei die Schweißverbindung 4 gemäß den 2a, b als flächige Schweißverbindung ausgeführt ist. Hierzu weist die zumindest eine Rückschlagklappe 3 eine flache Anlagekante 6 auf, über welche sie flächig mit dem Rahmen 2 verschweißt ist. Die 2a zeigt dabei den Verbindungsbereich der Rückschlagklappe 3 mit dem Rahmen 2 vor dem Herstellen der Schweißverbindung 4, wogegen die 2b die bereits fertig gestellte Schweißverbindung 4 zeigt.According to the 2 to 4 are different embodiments of the possible welded joint 4 shown, wherein the welded joint 4 according to the 2a , B is designed as a flat welded joint. For this purpose, the at least one non-return valve 3 a flat edge of investment 6 on which she flattens with the frame 2 is welded. The 2a shows the connection area of the non-return valve 3 with the frame 2 before making the weld 4 , whereas the 2 B the already completed weld joint 4 shows.

Bei der Ausführungsform der Entlüftungseinrichtung 1 gemäß den 3a und 3b ist am Rahmen 2 zumindest ein Zapfen 7 angeordnet, der durch eine entsprechende Ausnehmung 8 an der Rückschlagklappe 3 hindurchgreift. Derartige Zapfen 7 sind auch gemäß der 1 dargestellt, wobei hier je Rückschlagklappe 3 insgesamt drei Zapfen 7 vorgesehen sind. Gemäß der 3a wird somit zum Herstellen der Schweißverbindung 4 zunächst die Rückschlagklappe 3 mit ihren Ausnehmungen 8 über die jeweils zugehörigen Zapfen 7 geführt. Anschließend wird eine entsprechend ausgebildete Schweißvorrichtung 5 mit einem konkaven Ende auf den Zapfen 7 gedrückt, wodurch an diesem ein Kopf 9 hergestellt bzw. umgeformt wird, dessen Durchmesser größer ist als der Durchmesser der zugehörigen Ausnehmung 8. Hierdurch wird zusätzlich zur Schweißverbindung 4 eine mechanische Verbindung geschaffen.In the embodiment of the venting device 1 according to the 3a and 3b is at the frame 2 at least one pin 7 arranged through a corresponding recess 8th at the non-return valve 3 round picks. Such cones 7 are also according to the 1 shown here, each here check valve 3 a total of three cones 7 are provided. According to the 3a is thus used to make the weld 4 First, the non-return valve 3 with their recesses 8th over the respective associated pin 7 guided. Subsequently, a suitably trained welding device 5 with a concave end on the pin 7 pressed, causing a head on this 9 is manufactured or reshaped, whose diameter is greater than the diameter of the associated recess 8th , This will in addition to the weld 4 created a mechanical connection.

Bei den Schweißverbindungen 4 gemäß den 4a, b ist am Rahmen 2 (vgl. 4a) eine Schweißkante 10 angeordnet, die nach dem Herstellen der Schweißverbindung 4 die zugehörige Rückschlagklappe 3 zumindest teilweise überdeckt und mit dieser verschweißt sein kann. Dazu ist ebenfalls eine entsprechende Schweißvorrichtung 5 erforderlich, die exemplarisch gemäß der 4b dargestellt ist. At the welded joints 4 according to the 4a , b is at the frame 2 (see. 4a ) a welding edge 10 arranged after making the weld joint 4 the associated non-return valve 3 at least partially covered and welded to it. This is also a corresponding welding device 5 required, the exemplary according to the 4b is shown.

Generell kann mit der erfindungsgemäßen Schweißverbindung 4 ein schnelles, kostengünstiges und fertigungstechnisch einfaches Verbinden der Rückschlagklappe 3 mit dem zugehörigen Rahmen 2 der Entlüftungseinrichtung 1 erfolgen, wodurch sich insbesondere teure Zusatzteile, wie beispielsweise Befestigungsklammern erübrigen. Durch das Wegfallen derartiger Befestigungsklammern kann zusätzlich auch ein Montageaufwand deutlich reduziert werden. Ebenso wie damit verbundene Lager- und Logistikkosten.Generally, with the welded joint according to the invention 4 a fast, cost-effective and production-technically simple connection of the non-return valve 3 with the associated frame 2 the venting device 1 take place, which in particular expensive additional parts, such as mounting brackets unnecessary. By eliminating such mounting brackets in addition, an assembly effort can be significantly reduced. As well as associated storage and logistics costs.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 20316536 U1 [0002] DE 20316536 U1 [0002]
  • DE 102006056868 A1 [0003] DE 102006056868 A1 [0003]
  • DE 202007006724 U1 [0004] DE 202007006724 U1 [0004]

Claims (8)

Entlüftungseinrichtung (1), insbesondere in einem Kraftfahrzeug, mit einem aus Kunststoff ausgebildeten Rahmen (2) und mit zumindest einer beweglichen Rückschlagklappe (3) aus Kunststoff, dadurch gekennzeichnet, dass die zumindest eine Rückschlagklappe (3) über eine Schweißverbindung (4) mit dem Rahmen (2) verbunden ist.Venting device ( 1 ), in particular in a motor vehicle, with a plastic frame ( 2 ) and with at least one movable non-return flap ( 3 ) made of plastic, characterized in that the at least one non-return valve ( 3 ) via a welded connection ( 4 ) with the frame ( 2 ) connected is. Entlüftungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, die zumindest eine Rückschlagklappe (3) aus einem Elastomer ausgebildet ist.Venting device according to claim 1, characterized in that the at least one non-return valve ( 3 ) is formed of an elastomer. Entlüftungseinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schweißverbindung (4) mittels Ultraschallschweißen hergestellt ist.Venting device according to claim 1 or 2, characterized in that the welded connection ( 4 ) is made by ultrasonic welding. Entlüftungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zumindest eine Rückschlagklappe (3) eine flache Anlagekante (6) aufweist, über welche sie flächig mit dem Rahmen (2) verschweißt ist.Venting device according to one of claims 1 to 3, characterized in that the at least one non-return valve ( 3 ) a flat contact edge ( 6 ), over which it flat with the frame ( 2 ) is welded. Entlüftungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass am Rahmen (2) wenigstens zwei Zapfen (7) angeordnet sind, die durch entsprechende Ausnehmungen (8) an der Rückschlagklappe (3) hindurchgreifen, wobei die Zapfen (7) nach dem Herstellen der Schweißverbindung (4) einen umgeformten Kopf (9) aufweisen, dessen Durchmesser größer ist als der Durchmesser der zugehörigen Ausnehmung (8).Venting device according to one of claims 1 to 3, characterized in that the frame ( 2 ) at least two pins ( 7 ) are arranged, which by corresponding recesses ( 8th ) on the non-return valve ( 3 ), wherein the pins ( 7 ) after the welding connection ( 4 ) a reshaped head ( 9 ) whose diameter is greater than the diameter of the associated recess ( 8th ). Entlüftungseinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass am Rahmen (2) eine Schweißkante (10) oder Schweißkontur angeordnet ist, die nach dem Herstellen der Schweißverbindung (4) die zugehörige Rückschlagklappe (3) zumindest teileweise überdeckt und mit dieser verschweißt sein kann.Venting device according to one of claims 1 to 3, characterized in that the frame ( 2 ) a welding edge ( 10 ) or welding contour is arranged after the production of the welded joint ( 4 ) the associated non-return valve ( 3 ) at least partially covered and can be welded to this. Entlüftungseinrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Rahmen (2) aus einem thermoplastischen Kunststoff ausgebildet ist.Venting device according to one of claims 1 to 6, characterized in that the frame ( 2 ) is formed of a thermoplastic material. Kraftfahrzeug mit einer Entlüftungseinrichtung (1) nach einem der Ansprüche 1 bis 7.Motor vehicle with a ventilation device ( 1 ) according to one of claims 1 to 7.
DE102010042163A 2010-10-07 2010-10-07 Venting device, particularly for use in motor vehicle, has frame, which is made of plastic and movable non-return flap, which is made of plastic, where non-return flap is connected with frame through welded connection Withdrawn DE102010042163A1 (en)

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DE102010042163A DE102010042163A1 (en) 2010-10-07 2010-10-07 Venting device, particularly for use in motor vehicle, has frame, which is made of plastic and movable non-return flap, which is made of plastic, where non-return flap is connected with frame through welded connection

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DE102010042163A DE102010042163A1 (en) 2010-10-07 2010-10-07 Venting device, particularly for use in motor vehicle, has frame, which is made of plastic and movable non-return flap, which is made of plastic, where non-return flap is connected with frame through welded connection

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EP2878466A1 (en) 2013-11-28 2015-06-03 Mahle Behr France Rouffach S.A.S Air-conditioning system for a vehicle
DE102015015019A1 (en) * 2015-11-19 2017-05-24 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Ventilation device for the interior of a motor vehicle

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DE20316536U1 (en) 2003-10-28 2004-03-11 Trw Automotive Electronics & Components Gmbh & Co.Kg Check valve for vehicle ventilation
DE202007006724U1 (en) 2007-04-26 2007-08-30 Trw Automotive Electronics & Components Gmbh & Co. Kg vent flap
DE102006056868A1 (en) 2006-12-01 2008-06-12 Itw Automotive Products Gmbh & Co. Kg Return air lock for venting the interior of a motor vehicle
DE102008056756A1 (en) * 2008-11-11 2010-05-12 Euwe Eugen Wexler Gmbh Ventilation flap arrangement

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DE68909097T2 (en) * 1988-04-27 1994-01-13 Citroen Sa(Automobiles) Method for connecting a first plastic object and a second object by riveting.
DE68902451T2 (en) * 1988-10-17 1993-01-14 Citroen Sa VENTILATION DEVICE FOR A MOTOR VEHICLE.
DE69603518T2 (en) * 1995-02-21 2000-04-20 Trw Inc. Slat check valve
DE20316536U1 (en) 2003-10-28 2004-03-11 Trw Automotive Electronics & Components Gmbh & Co.Kg Check valve for vehicle ventilation
DE102006056868A1 (en) 2006-12-01 2008-06-12 Itw Automotive Products Gmbh & Co. Kg Return air lock for venting the interior of a motor vehicle
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2878466A1 (en) 2013-11-28 2015-06-03 Mahle Behr France Rouffach S.A.S Air-conditioning system for a vehicle
US10155429B2 (en) 2013-11-28 2018-12-18 MAHLE Behr France Rouffach SAS Air-conditioning system for a vehicle
DE102015015019A1 (en) * 2015-11-19 2017-05-24 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Ventilation device for the interior of a motor vehicle

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