EP1332311A2 - Piece de raccord pour conduites en plastique flexibles - Google Patents

Piece de raccord pour conduites en plastique flexibles

Info

Publication number
EP1332311A2
EP1332311A2 EP01992856A EP01992856A EP1332311A2 EP 1332311 A2 EP1332311 A2 EP 1332311A2 EP 01992856 A EP01992856 A EP 01992856A EP 01992856 A EP01992856 A EP 01992856A EP 1332311 A2 EP1332311 A2 EP 1332311A2
Authority
EP
European Patent Office
Prior art keywords
plug
electrical
connection
receptacle
plastic
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Withdrawn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
EP01992856A
Other languages
German (de)
English (en)
Inventor
Jürgen Böck
Herbert Frisch
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.)
Festo SE and Co KG
Original Assignee
Festo SE 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.)
Filing date
Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1332311A2 publication Critical patent/EP1332311A2/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Withdrawn legal-status Critical Current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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • F16L19/0653—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring the ring being rotatably connected to one of the connecting parts
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/127—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/01—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof

Definitions

  • the invention relates to a connector for flexible fluidic plastic lines, the wall of which has at least one electrical line string, a non-rotationally symmetrical plug-in receptacle being provided, which is adapted to the cross-section of the plastic line.
  • a second and, if necessary, a third, fourth, etc. operation for contacting is required for contacting.
  • Secure contacting is made more difficult by the fact that the self-tapping contact first has to travel a certain distance through the plastic material until it reaches the electrical wiring harness. It can happen that he is distracted due to material irregularities, for example, and that there is no safe electrical contact.
  • the self-tapping contacts are in turn contacted after the insertion movements themselves and connected with an electrical connection cable or plug, which requires additional operations.
  • connection piece it is an object of the present invention to improve such a connection piece in such a way that the connection to a fluid plastic line having electrical wiring harnesses can be implemented more easily and more reliably.
  • the particular advantage of the connecting piece according to the invention is that by simply inserting the fluid plastic line into the plug receptacle, the electrical connections are automatically made even if there are several electrical line strands in the wall of the plastic line. An additional or subsequent establishment of the electrical connections is completely eliminated. Since the contact tips penetrate directly into the cable strands when the plastic cable is inserted into the plug receptacle, a secure electrical connection is ensured, especially since contact tips penetrate into the cable strands in the longitudinal direction and thus form a longer contact path than transverse insertion. Especially when there is a large number of wiring harnesses in the wall The plastic cable results in a particularly significant simplification in the electrical connections.
  • the plug-in receptacle expediently has, or essentially consists of a pipe section which is arranged parallel to the contact tip and penetrates into the fluidic channel when the plastic line is inserted.
  • a sealing fluidic connection is thus formed on the one hand, and on the other hand this pipe section serves for centering and aligning the plastic line and thereby enables secure positioning relative to the contact tip (s).
  • a clamp fixation which is designed in particular as a clamp screw connection, advantageously serves for mechanical fixation.
  • the compression fitting advantageously consists of a screw thread encompassing the plug-in receptacle and a corresponding union nut, a wedge piece that can be moved axially along an inclined surface by the union nut being provided for the clamping fixation of the plastic line, in particular for the clamping fixation between the pipe piece and the wedge piece.
  • the flexible wedge piece is designed as a clamping ring and has an inner contour corresponding to the outer contour of the plastic line, the outer diameter tapering like a wedge toward the bottom of the plug receptacle.
  • the plug-in receptacle is connected via an internal channel arrangement to at least one further fluidic connection point and / or a fluidic actuator, with a large number of possible variations and designs.
  • Preferred design variants are the design of the at least one further fluidic connection point as a further plug-in receptacle for a corresponding plastic line (branching) and / or the design as a fluidic connection screw connection for screwing into a fluidic device or for connecting a fluidic line with or without electrical Line and / or training as a connection point for a pressure sensor.
  • the various options can be varied in terms of type and number.
  • the electrical connection contact arrangement can expediently be designed as an electrical plug or plug connector or plug connection or screw connection for an electrical cable, any type and number of variations being possible here as well.
  • the electrical connection cable can advantageously also be connected to a sensor, in particular a position sensor for piston position detection, or a plug or plug connector.
  • a sensor in particular a position sensor for piston position detection, or a plug or plug connector.
  • this is irreversibly molded together with the electrical connection cable.
  • the electrical connection cable can also be connected to a mounted bus station or a bus connector for a data bus.
  • the invention is not restricted to flexible fluidic plastic lines, the wall of which has at least one electrical line, but also includes connecting pieces for plastic lines, in the wall of which at least one light guide is alternatively or additionally provided.
  • a light transmitter or light converter instead of one Contact tip a light transmitter or light converter at the bottom of the plug-in receptacle.
  • the clamp fixation described also has the advantage in such an embodiment that when screwing the light guide or light guides are pressed against the light transmitter or light converters, so that good light transmission is ensured.
  • the 7 seal through the flexible wedge prevents contamination that could impair the light transmission.
  • connection cable is designed as an electrical and / or optical connection cable
  • connection contact arrangement is also implemented as an electrical and / or optical connection contact arrangement
  • FIG. 1 shows a first embodiment of a connecting piece with a molded connecting cable and sensor, in which a fluidic plastic line with three electrical cable strands is plugged into the wall, in longitudinal section,
  • FIG. 4 shows a second exemplary embodiment of a connecting piece designed as a branch in longitudinal section
  • FIG. 5 is a side view of a third exemplary embodiment of a connecting piece with an assembled bus station
  • connection 6 shows a fourth embodiment of a connection
  • Fig. 7 shows a fifth embodiment of a connecting piece designed as a screw connection, which is connected to a working cylinder, and
  • Fig. 8 shows a sixth embodiment of a connector for optical signal transmission in longitudinal section.
  • the connecting piece 10 shown in FIGS. 1 and 3 as the first exemplary embodiment essentially serves for connection to a flexible fluid plastic line 11, in the wall of which three electrical line strands 12 - 14 are arranged. fen, which are designed for example as strands.
  • the number of wiring harnesses 12-14 is of course arbitrary between one and a large number of wiring harnesses.
  • the plastic line 11 has a non-rotationally symmetrical cross section, so that it is only possible to insert it into a plug-in receptacle 15 with a corresponding cross section of the base body 16 of the connecting piece 10 in a specific orientation.
  • the plug-in receptacle 15 is surrounded by a tubular wall area 18 of the base body 16 which has a screw thread 17 on the outside.
  • a part of the wall region 18 adjoining the region of the plug-in receptacle 15 is tapered towards the free axial end, so that a circular cone-like inclined surface 19 is formed on its inside.
  • the plug-in receptacle 15 is delimited radially inwards by a tube piece 20, which is anchored or integrally formed on or in the base body 16 and which extends in the axial direction beyond the free end of the wall region 18.
  • the outer diameter of the pipe section 20 is slightly larger than the inner diameter of a fluidic channel 21 in the interior of the plastic line 11.
  • Contact tips 22 corresponds to the number and arrangement of the cable strands 12-14 in the plastic line 11, so that when the plastic line 11 is inserted into the plug-in receptacle 15 the contact tips 22 penetrate into the wiring harnesses 12-14 and establish an electrically conductive connection, as shown in FIG. 3. As a result of the sectional illustration, only the contact tip 22 which is in contact with the central cable harness 13 can be seen.
  • a sealing washer 23 is also arranged between the bottom of the plug-in receptacle 15 and the end face of the plastic line 11.
  • a union nut 24, which can be screwed to the screw thread 17, is used to fix the inserted plastic line 11 in the plug-in receptacle 15, through which a flexible elastic clamping ring 25 can be axially displaced in the manner of a collet.
  • the inner contour of this clamping ring 25 corresponds to the outer contour of the plastic line 11, while the outer contour of this clamping ring 25 is complementary in the form of a circular cone, at least in the region of the circular cone-like inclined surface 19 of the wall region 18, so that when the union nut 24 is screwed in, the clamping ring 25 is wedged against the Plastic line 11 is pressed and this clamps between itself and the pipe section 20.
  • clamping or snap-in connections or also internal screw connections can be used instead of the described clamping screw connection.
  • the pipe section 20 on its outside and / or the wall area 18 on its inside can be provided with ring-shaped projections for fixing the inserted plastic line 11.
  • Such holding projections can also be used in the described embodiment.
  • the end region of the base body 16 axially opposite the wall region 18 is designed as a screw connection for screwing into a fluidic device such as a valve, a working cylinder or the like in a sealing manner.
  • this tube-like screw region 27 is provided with an external thread 26, an internal channel 28 extending from the end face to the tube section 20 establishing the fluidic connection.
  • an electrical cable 29 is attached or formed on the circumference of the base body 16, which establishes the electrical connection between a sensor arrangement 30 and the contact tips 22. If the sensor arrangement 30 only requires two lines for signal transmission, the cable can 29 instead of three-wire also two-wire, so that one of the contact tips 22 is not connected.
  • the electrical cable 29 can both on the sensor arrangement
  • the sensor arrangement 30 as well as be integrally formed on the base body 16.
  • a sensor arrangement is used, for example, for position detection, pressure detection or temperature detection.
  • the sensor arrangement 30 contains sensors known for the respective measured value acquisition, for example for the position acquisition Hall elements or other sensors responsive to magnetic and / or electrical fields.
  • connection point can of course also be designed as an electrical plug or screw connection.
  • a plurality of electrical cables 29 can also be attached to the base body 16, molded on or connected via a plurality of plug-in or screw connections in order, for example, to connect a plurality of sensor arrangements or other devices to the line strands 12-14 in the plastic line 11 ,
  • the connecting piece 31 shown in FIG. 4 as a second exemplary embodiment forms a branch for the electrical and fluidic connection of three plastic lines 11 to one another.
  • a base body 32 has three wall regions 18 with three plug-in receptacles 15 and three tube pieces 20, the contact tips 22 of each plug-in receptacle 15 being electrically connected lines 33 in the base body 32 are interconnected.
  • a T-shaped channel arrangement 34 fluidly connects the three pipe sections 20 to one another.
  • the three required union nuts 24 and three clamping rings 25 have not been shown.
  • plug-in receptacles 15 instead of the three connections or plug-in receptacles 15 for three plastic lines 11, in a modification of the second exemplary embodiment, only two plug-in receptacles 15 arranged linearly or at an angle to one another or a larger number of corresponding plug-in receptacles 15 can be provided, depending on how many plastic lines 11 are connected to one another should be.
  • the connector 35 shown in Fig. 5 as a third embodiment has a base body 36 to which one
  • Bus station 37 of a data bus 38 is mounted, for example plugged in or screwed on.
  • a connection means for a data bus such as a bus connector, could also be provided.
  • a plug connection 9 (wall area 18, plug receptacle 15) designed according to the first or second exemplary embodiment for a plastic line 11 is formed on the base body 36.
  • the electrical connection of the three contact tips 22 of the plug-in connection 9 to the bus station 37 takes place via schematically illustrated internal lines 39.
  • an internal fluidic channel 40 extends from the plug-in connection 9 to the opposite side of the base body 36, where a fluidic line 41 without internal electrical lines extends a conventional screw piece 42 is connected to the internal fluidic channel 40.
  • the number and arrangement of the plug connections 9 and / or screw connections 42 can also vary.
  • only plug connections 9 can also be provided.
  • another electrical device such as a sensor, a solenoid valve or several such electrical devices, can be provided.
  • the connector 43 shown in FIG. 6 as the fourth embodiment is designed as a multiple distributor.
  • An elongated base body 44 has two plug connections 9, two screw connections 42 on the two end faces and two plug connections 45 for electrical cables 46 with several wires.
  • These plug connections 45 are constructed similarly to the plug connections 9 or the connection piece 10, with the difference being that the pipe section 20 and the inner channel 28 are omitted.
  • the plug-in receptacle 15 can be dimensioned smaller, but likewise, like the electrical cable 46, does not have to be rotationally symmetrical, so that when the electrical cable 46 is plugged in, the contact tips can penetrate into the corresponding wires 46.
  • An electrical multipole socket 47 is arranged on a further outside of the base body 44.
  • the electrical Cable strands in the plastic lines 11 and the electrical wires in the electrical cables 46 are connected to one another and / or to the connections of the multipole socket 47 in the desired manner internally in the base body 44.
  • the fluidic connections of the two screw connections 42 and the two plug connections 9 in the base body 44 are connected to one another via internal fluidic lines.
  • the number and arrangement of the connections can vary, it also being possible for another multiple socket or another electrical connection contact arrangement to be used instead of the multipole socket 47.
  • a plug connection 9 is arranged on a working cylinder 48.
  • This working cylinder 48 contains at least one internal solenoid valve 49 which can be actuated via the line strands in the plastic line 11. This is, for example, a 5/2 or a 5/3-way valve.
  • the piston or the piston rod 50 of the working cylinder 48 can be moved in the two opposite working directions.
  • the Druckverso supply also takes place via the plastic line 11, so that a total of only a single plastic line 11 and a single plug connector 9 are required.
  • sensor signals from sensors (not shown) in the working cylinder 48 can still be transmitted via the plastic line 11 become.
  • a bus station can also be contained in the working cylinder 48.
  • another fluidic device for example a linear motor, a valve station or the like, can be used instead of a working cylinder 48.
  • the connector 51 shown in FIG. 8 as the sixth exemplary embodiment largely corresponds to the connector 10 described as the first exemplary embodiment, the same or equivalent components and areas being provided with the same reference symbols and not being described again.
  • a plastic line 52 with a corresponding cross section, in the wall of which light conductors 53 are now arranged instead of electrical line strands 12-14.
  • the contact tips 22 are replaced by light transmitters 54, which come into optical contact with the end faces of the light guides 53 when the plastic line 52 is inserted.
  • the electrical lines connected to the contact tips 22 and running internally in the base body 16 are replaced here by correspondingly running internal light guides 55.
  • the light transmitters 54 can also be dispensed with in a simpler embodiment, so that the light guides 53 in the plastic line 52 come into direct optical contact with the internal light guides 55.
  • the light transmitters 54 can also be replaced by light converters, so that optical signals can be converted there into electrical signals and the internal light guides 55 can in turn be replaced by electrical lines.
  • a plastic line can partly contain electrical cable strands and partly light guides, in which case corresponding contact tips and light transmitters or light converters are arranged in the plug-in receptacle 15.
  • a light guide for signal transmission and two electrical wiring harnesses for electrical amplifiers or for power supply can be provided.
  • the sixth exemplary embodiment shown in FIG. 8 or mixed versions between the first and sixth exemplary embodiments can, of course, also be applied to the other exemplary embodiments, that is to say that the electrical lines or line strands described there can also be replaced in whole or in part by light guides.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Processing Of Terminals (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne une pièce de raccord destinée à des conduites fluidiques en plastique flexibles (11), dont la paroi présente au moins un cordon conducteur électrique (13). Un élément de réception enfichable (15), dépourvu de symétrie de rotation, adapté à la section de la conduite en plastique (11), sert à recevoir la conduite en plastique (11). Au moins une pointe de contact électrique (22) est disposée contre le fond de l'élément de réception enfichable (15), de sorte que lesdites pointes s'alignent avec les cordons conducteurs électriques (13) lors de l'enfichage de la conduite en plastique (11) dans l'élément de réception enfichable (15), et pénètrent dans lesdits cordons. Selon l'invention, les pointes de contact (22) sont reliées électriquement à au moins un câble de raccord électrique (29) et/ou à au moins un dispositif de contact de raccord électrique de la pièce de raccord. A la place des ou en plus des cordons conducteurs électriques peuvent être utilisés des conducteurs lumineux, dans quel cas les pointes de contact électriques sont remplacées par des élément de transmission lumineuse ou des convertisseurs lumineux. Le simple enfichage de la conduite en plastique (11) permet alors la mise en place automatique des raccords fluidiques et électriques et/ou optiques.
EP01992856A 2000-10-31 2001-10-10 Piece de raccord pour conduites en plastique flexibles Withdrawn EP1332311A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10054559 2000-10-31
DE10054559A DE10054559C2 (de) 2000-10-31 2000-10-31 Anschlußstück für flexible fluidische Kunststoffleitung mit nicht drehsymmetrischem Querschnitt
PCT/EP2001/011685 WO2002037012A2 (fr) 2000-10-31 2001-10-10 Piece de raccord pour conduites en plastique flexibles

Publications (1)

Publication Number Publication Date
EP1332311A2 true EP1332311A2 (fr) 2003-08-06

Family

ID=7662058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01992856A Withdrawn EP1332311A2 (fr) 2000-10-31 2001-10-10 Piece de raccord pour conduites en plastique flexibles

Country Status (5)

Country Link
US (1) US20040036290A1 (fr)
EP (1) EP1332311A2 (fr)
JP (1) JP2004513475A (fr)
DE (1) DE10054559C2 (fr)
WO (1) WO2002037012A2 (fr)

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DE10049958B4 (de) * 2000-10-10 2004-12-02 Festo Ag & Co Fluidtechnische Anordnung sowie Ventilanordnung und Aktuator hierfür
DE10054561B4 (de) * 2000-10-31 2004-09-02 Festo Ag & Co. Ventilgesteuerte fluidische Aktoranordnung
DE10217504C1 (de) * 2002-04-19 2003-10-30 Festo Ag & Co Anschlussstück für flexible Kunststoffleitungen mit Sensoranordnung
DE10237976B4 (de) * 2002-08-20 2005-11-24 Festo Ag & Co. Anschlussstück für eine Fluidleitung
DE202004008790U1 (de) * 2004-06-02 2005-10-13 Stocko Contact Gmbh & Co. Kg Anschlussstück für eine Fluidleitung
US8756828B2 (en) * 2008-05-01 2014-06-24 Whirlpool Corporation Failure mode detection in an appliance dispensing system
BE1021364B1 (nl) * 2013-12-17 2015-11-06 Atlas Copco Airpower Naamloze Vennootschap Koppeling voor het verbinden van buisuiteinden en overbrugging voor gebruik in een koppeling
FR3020438B1 (fr) 2014-04-23 2016-05-27 Asco Joucomatic Sa Electrovanne a moyen de montage ameliore de tubulures sur celle-ci
IT201700033574A1 (it) * 2017-03-27 2018-09-27 Ali Group Srl Carpigiani Connettore per il collegamento di un contenitore di prodotti alimentari liquidi o semi-liquidi e macchina comprendente detto connettore e contenitore.
CN109027454B (zh) * 2018-10-19 2024-01-30 安庆中船柴油机有限公司 一种柔性双层壁燃气供给管总成
DE102019203391A1 (de) * 2019-03-13 2020-09-17 Audi Ag Fluidleitung

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Also Published As

Publication number Publication date
WO2002037012A2 (fr) 2002-05-10
WO2002037012A3 (fr) 2002-09-19
DE10054559C2 (de) 2003-04-17
US20040036290A1 (en) 2004-02-26
JP2004513475A (ja) 2004-04-30
DE10054559A1 (de) 2002-05-16

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