EP2132447A1 - Dispositif de liaison et procédé permettant d'établir une liaison - Google Patents

Dispositif de liaison et procédé permettant d'établir une liaison

Info

Publication number
EP2132447A1
EP2132447A1 EP07711839A EP07711839A EP2132447A1 EP 2132447 A1 EP2132447 A1 EP 2132447A1 EP 07711839 A EP07711839 A EP 07711839A EP 07711839 A EP07711839 A EP 07711839A EP 2132447 A1 EP2132447 A1 EP 2132447A1
Authority
EP
European Patent Office
Prior art keywords
connection
connecting device
projection
plastic
mold
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Withdrawn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
EP07711839A
Other languages
German (de)
English (en)
Inventor
Josef Burger
Richard Schmidt
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2132447A1 publication Critical patent/EP2132447A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/0004—Joining sheets, plates or panels in abutting relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/77—Use of a shape-memory material

Definitions

  • the invention relates to a connecting device by means of which a detachable non-positive connection can be produced. Furthermore, it relates to a device for receiving an electrical circuit and / or a device comprising electrical switching means and to a method for producing such a detachable frictional connection.
  • Products such as e.g. Electronic devices or their housings often comprise several parts which are releasably or non-detachably connected to each other, e.g. screwed, riveted, locked or glued, are.
  • Housing turn in turn, comprise a plurality of interconnected housing parts.
  • these parts are often made of plastics.
  • tolerances e.g. in terms of dimensions, and / or shape deviations, which, at least for higher quality products, by means of cost and time-intensive tuning of the parts reduced or avoided each other.
  • a compound of parts may be achieved by means of materials having a shape-memory effect (SME).
  • SME shape-memory effect
  • EP 0 302 618 describes a connection device for making detachable connections between two or more parts of a heat exchanger, which comprises a ring or tube-shaped connection component of SME material based on copper, zinc, aluminum and titanium / nickel (NiTi ) Alloys and which can undergo a thermoelastic deformation.
  • a compressible component called a split ring with a lockable Gap is formed, can be positioned between the connection component and two parts to be joined. Due to the thermoelastic deformation of the connection component, the compressible component is compressed and the gap is closed, whereby the detachable connection is achieved.
  • connection device is a costly and time-consuming, complex machining and a complicated structure of the connection device, which consists of several parts and additionally comprises further elements, such as e.g. Seals.
  • the invention is therefore based on the object to reduce or minimize these disadvantages or effects of these disadvantages.
  • a releasable frictional connection which can be produced by means of the connection device, depending on at least one physical property of a plastic is solvable and that the physical property of the plastic in response to an electrical voltage is changeable.
  • plastic here and hereinafter, e.g. a polymer, polymer mixture or polymer aggregate, which may be of natural or synthetic origin or comprises a mixture of natural and synthetically produced components.
  • non-polymeric components may be included. Examples of such components are metal atoms or ions with which the plastic can be doped.
  • connection means a connection or a tumbler, by means of which a power transmission is made possible.
  • detachable means a solubility as intended, that is to say an action of forces which occur when the connecting device is used as intended.
  • the maximum force which can not be used to release the connection tion ie a force that can be compensated by the connection device, vary with a purpose of use of the connection device.
  • the compensable force can be lower, for example, with a simple guard locking without a special security claim than with a guard locking with an additional security claim, for example to prevent an opening by unauthorized persons. This can be ensured, for example, by a dimensioning of the connecting device, a use of plastics with properties adapted to the intended use, a shaping of the connecting device or a combination thereof.
  • electroactive plastic a plastic referred to hereinafter as electroactive plastic, in which at least one of its physical properties is variable as a function of an energy in the form of an electrical voltage. Additionally or alternatively, the energy may be a current flow correlated with the electrical voltage, an electric field, an electromagnetic field, a heat energy or a light energy.
  • the physical property of the electroactive plastic is preferably a shape or a volume of the electroactive plastic.
  • the connecting device comprises at least a first and a second connecting element for producing the releasable force-locking connection and at least one of the connecting elements is at least partially formed from the electroactive plastic.
  • first and second connecting element correspond at least partially and thus enable a simple and cost-effective implementation of the connection and / or tumbler.
  • the first connecting element is assigned to a first part and comprises a projection and that the second connecting element is assigned to a second part and designed as corresponding to the projection.
  • the second connecting element may comprise the or a projection and the first connecting element may be designed as corresponding to the projection.
  • the projection may be associated with the first, the second or both parts.
  • a larger proportion of the at least one part is formed from the electroactive plastic, it is also or alternatively possible to produce a connection over a larger area with an improved distribution of forces, ie greater stability and / or durability of the detachable connection. This results in an improved adaptability of the connecting device to different requirements, for example, to be absorbed by the connecting device forces, a desired function, such as protection against unauthorized opening, or to spatial conditions.
  • the second connecting element comprises a recess for receiving the projection.
  • the connecting device by means of the connecting device, a simple and cost-effective sealing of the first and second parts against each other and / or against at least one other part can be achieved.
  • the projection or the recess itself or the projection and the recess is at least partially formed of electro-active plastic, then a low-cost adaptation to the corresponding connecting element is achieved while reducing a time and labor intensive adjustment between the projection and recess.
  • the electroactive plastic can be converted by means of the electrical voltage at least from a first shape into a second shape and from the second shape to the first shape, wherein in the presence of the first shape, the non-positive connection is releasable and wherein in the presence of the second form the non-positive connection is not solvable.
  • the first form in which the solubility is given, be adopted when the electrical voltage.
  • energy is supplied to achieve the releasability of the connecting device, whereas when no voltage is applied, an existing connection is not solvable due to the assumed shape. This minimizes energy consumption when connected.
  • connection is detachable.
  • An example is a fuse box whose door can be opened or opened, in particular in the event of a triggered fuse, and thus in case of non-demand (no solved fuse) eg is protected against unauthorized access.
  • the first connecting element is a spigot and the second connecting element is an opening.
  • a largest outer circumference of the pin is smaller than a smallest inner circumference of the opening corresponding to the pin and in the presence of the second shape, the largest outer circumference of the pin greater than the smallest inner circumference of the opening corresponding to the pin.
  • connection device is at least partially invisible and / or inaccessible to a viewer or user, resulting in an improved visual appearance and reduced manipulability.
  • the electroactive plastic is preferably a plastic with a shape memory effect which has at least one first shape (eg an initial shape) with a first volume (eg an initial volume), a second, third, fourth etc. shape with a second, third one , fourth, etc. volumes.
  • first shape eg an initial shape
  • first volume eg an initial volume
  • second, third, fourth etc. shape with a second, third one , fourth, etc. volumes.
  • the plastic changes its shape, but not its volume, or its volume, but not its shape.
  • transitions are possible, for example, from the first shape with the first volume to the third shape while maintaining the first volume.
  • a change of shape or volume can take place once or several times, for example as a function of the applied electrical voltage.
  • the plastic may be gradual or continuous. at least assume the initial shape or the initial volume, resulting in a flexibility in the use of the connecting device and adaptability to different requirements.
  • the stated object is achieved according to the invention by means of at least one first and second housing element acting as first and second part with such or the connecting device described below.
  • the device may e.g. a housing, which comprises electrical components, a control cabinet or the like, and serve the connecting device for connecting, an assembly, locking or closing.
  • the electrical voltage can be applied by means of a voltage source encompassed by the latter or at least temporarily assignable thereto.
  • the connection device comprises a lock with a circuit that can be produced by inserting a key.
  • the circuit can be provided either on the side of the key or on the sides of the castle a voltage source; in both cases, the connection device is supplied with electrical energy by inserting the key and thereby closing the circuit, so that the connection is made or dissolved.
  • Making a releasable positive connection can be specified.
  • a first electrical voltage for producing and a second electrical voltage for releasing the releasable force-locking connection are applied.
  • the first or second applied electrical voltage can be "zero", so it can only one electrical voltage can be applied either for making or breaking the seal.
  • FIG. 2 shows schematically a vertical section through a connecting device according to the invention
  • FIG. 3 schematically shows a vertical section through a connecting device with an alternative geometric design.
  • connection device 10 schematically shows a vertical section through a connection device 10 according to the prior art, which comprises a first connection element 12 and a second connection element 14 and in which the first connection element 12 with the second connection element 14 for establishing a connection 16 is mechanically latched.
  • 2 schematically shows a vertical section through a connecting device 10 according to the invention, which comprises a first and a second connecting element 12, 14.
  • the first and second connecting element 12, 14 are formed as corresponding to each other and the first connecting element 12 comprises a projection 18 made of electroactive plastic, which a first form and a second shape 20, 22, that is an open and a closed position 20a, 22a occupy can. If the projection 18 occupies the open position 20a, the first connecting element 12 and the second connecting element 14 are mechanically latchable; If a connection 16 is present and the projection 18 occupies the closed position 22a, the connecting device 10 is in an operative position.
  • the projection 18 occupies the open position 20a and thus enables the movement of at least one of the connecting elements 12, 14 along the transverse axis out of the operative position or also into this into it. Additionally or alternatively, the projection 18 may be assigned to the second connection element 14 or both connection elements 12, 14 and correspond to the respective other connection element 14, 12.
  • the connecting device 10 comprises a first and a second part 24, 26 wherein the first part 24, the first connecting element 12, which is formed in the illustrated embodiment as a pin, and the second part 26, the second connecting element 14, which in the illustrated embodiment as a with the pin corresponding opening is formed, is assigned.
  • the pin is in turn the projection 18 made of electroactive plastic and the opening is associated with a corresponding recess 28 for receiving the projection 18.
  • an environment 30 of the opening, the recess 28, an environment 30 of the recess 28, at least one of the parts 24, 26 or a combination thereof may be at least partially formed of electroactive plastic.
  • the projection 18 is transferred in the presence of electrical voltage from the second mold 22 in the first mold 20.
  • a largest outer circumference of the spigot is smaller than a smallest inner circumference of the opening corresponding to the spigot so that the spigot is movable into and out of the opening.
  • the largest outer circumference of the pin is greater than the smallest inner circumference of the opening corresponding to the pin, so that when the pin is inserted into the opening (operative position), a spill of the pin out of the opening prevented becomes. This is done by transmitting a force acting along the longitudinal axis on at least one of the connecting elements 12, 14 of the connecting device 10, which force is transmitted between the projection 18 and the connecting element 12, 14.
  • the invention relates to a connecting device 10 by means of which a detachable non-positive connection 16 can be produced, wherein the compound 16 in response to at least one physical property of an electroactive plastic is solvable and the physical property of electro-sensitive plastic in response to an electrical voltage is changeable, a device for receiving an electrical circuit and / or a device comprising electrical switching means, with at least one first and second part 12, 14 acting first and second housing element with a connecting device 10 of the above Kind and a method for producing a releasable positive connection 16 by means of such a connecting device 10, wherein a first electrical voltage for producing and a second electrical voltage for releasing the releasable positive connection 16 is applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

La présente invention concerne un dispositif de liaison (10) qui permet d'établir une liaison détachable par assemblage à force (16). Cette liaison (16) peut être détachée en fonction d'au moins une propriété physique d'une matière plastique électroactive, laquelle propriété physique de la matière plastique électroactive peut être modifiée en fonction d'une tension électrique. Cette invention concerne également un dispositif permettant de recevoir un circuit électrique et/ou un dispositif comprenant des moyens de commutation électriques, qui présentent au moins un premier et un second élément de boîtier jouant le rôle de première et de seconde pièce (12, 14), avec un dispositif (10) du type susmentionné. En outre, cette invention concerne un procédé permettant d'établir une liaison détachable par assemblage à force (16) au moyen d'un tel dispositif (10), une première tension électrique étant appliquée pour établir la liaison détachable par assemblage à force (16) et une seconde tension électrique étant appliquée pour la détacher.
EP07711839A 2007-03-07 2007-03-07 Dispositif de liaison et procédé permettant d'établir une liaison Withdrawn EP2132447A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/001975 WO2008106997A1 (fr) 2007-03-07 2007-03-07 Dispositif de liaison et procédé permettant d'établir une liaison

Publications (1)

Publication Number Publication Date
EP2132447A1 true EP2132447A1 (fr) 2009-12-16

Family

ID=38626364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711839A Withdrawn EP2132447A1 (fr) 2007-03-07 2007-03-07 Dispositif de liaison et procédé permettant d'établir une liaison

Country Status (2)

Country Link
EP (1) EP2132447A1 (fr)
WO (1) WO2008106997A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015004917B4 (de) * 2015-04-17 2017-11-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Behälter einer oberhalb einer Passagiersitzreihe angeordneten Sauerstoffversorgungseinheit ineinem Flugzeug
FR3087220B1 (fr) 2018-10-12 2020-12-04 Zodiac Aerotechnics Verrou a memoire de forme

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610926A (ja) * 1992-06-24 1994-01-21 Hitachi Ltd 装置あるいは設備の部品接合及び解体方式
GB2320277B (en) * 1996-12-09 2001-10-10 Univ Brunel Improvements relating to product disassembly
JP2000304020A (ja) * 1999-04-19 2000-10-31 Minolta Co Ltd 固着装置及び固着方法
ATE277291T1 (de) * 1999-09-08 2004-10-15 Uponor Innovation Ab Kunststoff-befestigungsvorrichtung
DE10151666A1 (de) * 2001-10-19 2003-05-08 Siemens Ag Aus mehreren Einzelteilen bestehender Gegenstand, insbesondere elektronisches oder elektrotechnisches Gerät
DE102004004658B4 (de) * 2004-01-29 2006-01-12 Faurecia Innenraum Systeme Gmbh Befestigungselement mit temperaturinduzierbarem Formänderungseffekt

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008106997A1 *

Also Published As

Publication number Publication date
WO2008106997A1 (fr) 2008-09-12

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