EP2795738B1 - Assemblage par enfichage doté d'une conduite conductrice - Google Patents

Assemblage par enfichage doté d'une conduite conductrice Download PDF

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Publication number
EP2795738B1
EP2795738B1 EP12812850.1A EP12812850A EP2795738B1 EP 2795738 B1 EP2795738 B1 EP 2795738B1 EP 12812850 A EP12812850 A EP 12812850A EP 2795738 B1 EP2795738 B1 EP 2795738B1
Authority
EP
European Patent Office
Prior art keywords
sealing
wedge
plug connector
assembly
heating tape
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.)
Active
Application number
EP12812850.1A
Other languages
German (de)
English (en)
Other versions
EP2795738A2 (fr
Inventor
Karl-Heinz Lux
Hans-Martin LÖSCH
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.)
Bartec GmbH
Original Assignee
Bartec GmbH
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Filing date
Publication date
Application filed by Bartec GmbH filed Critical Bartec GmbH
Publication of EP2795738A2 publication Critical patent/EP2795738A2/fr
Application granted granted Critical
Publication of EP2795738B1 publication Critical patent/EP2795738B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5213—Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/582—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being clamped between assembled parts of the housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable

Definitions

  • the invention relates to a plug connection with at least one current-carrying line according to the preamble of claim 1.
  • heating tapes pipes, containers, channels and the like are kept at certain temperatures.
  • the heating bands are fastened on delivery lines in order to keep the medium flowing in the delivery lines at a certain temperature so that it can flow or flow.
  • moisture deposits on the end of the heating cable and thus changes the tracking resistance of the heating cable.
  • the moisture penetrates due to capillary action, especially in wet or wet conditions of use, or moisture is created by a pumping effect, which arises during cooling or heating.
  • Between the strands of the heating tape creates an initially slight, over time greater moisture accumulation on which electrical leakage currents can flow. As a result, there is a risk that the heating tape gets light burn marks between the two strands; progressively, the tracking resistance can even drop so far that a short circuit can occur.
  • stuffing boxes with adapted nut are known, through which the electrical line protrudes.
  • the stuffing box is elastically deformed radially inwardly so that it fits sealingly against the heating tape.
  • a Verwalkung occurs, ie a deformation in Circumferential direction. This results in that the sealing effect is reduced, because through the Verwalkungshunt passageways form inwardly into the connector. Moisture can penetrate from the outside via the stuffing box and cause the described problems within the plug connection.
  • the invention has for its object to form the generic connector so that it is ensured with a simple design and cost-effective installation that creepage due to moisture in the connector is avoided.
  • the plug-in connection according to the invention has the sealing device which reliably protects the contacting of heating cable and connecting cable from environmental influences.
  • the sealing device has the sealing body, which has the elastically deformable sealing part. It is elastically deformed by introducing a force acting in the longitudinal direction of the conduit transversely to this longitudinal direction, whereby it seals against the outside of the conduit. By this elastic deformation no Verwalkung occurs, so that no passageways for moisture and the like can form.
  • the sealing part is elastically deformed by at least one wedge slide. With him, the force acting in the longitudinal direction of the line force can be easily deflected in the transverse thereto directed force to apply the sealing member to the electrical line sealing.
  • the sealing part is provided with a conical surface, which cooperates with a conical surface of the wedge slide.
  • the wedge slide is guided in a holding part. With the holding part of the sealing body is axially secured, so that this in the elastic deformation its sealing part remains positioned.
  • the wedge slide is axially biased by the at least one compression spring element, so that the sealing function is ensured over a wide temperature range. Since the material properties and the dimensions of the parts change at the corresponding temperatures, the prestressed wedge slide ensures that the sealing part always bears sealingly against the electrical line.
  • the compression spring element is actuated by the at least one pressure piece. The compression spring element is thus supported on the wedge slide and on the pressure piece, which triggers the force acting on the wedge slide biasing force.
  • the sealing body is advantageously secured in the connecting piece of the connector against transverse displacement.
  • the position of the sealing body is perfectly secured in position both in the elastic deformation of the sealing part and in the installation position on the transverse displacement.
  • the pressure piece is advantageously guided displaceably within the holding part.
  • the pressure piece is advantageously arranged so that it is actuated when inserting a plug-in module.
  • the actuator is advantageously part of such a plug-in module of the connector.
  • the sealing device is advantageously followed by a strain relief device for the line in the connector.
  • the holding part has an annular wall which bears against an inner wall of a receiving space of a connecting piece of the plug-in connection.
  • a wedge piece of the wedge slide is arranged in a preferred embodiment between the holding part and the sealing part. As a result, the sealing member is pressed securely against the sealed pipe.
  • the wedge piece of the wedge slide on a straight axial section on the outside, with which the wedge piece rests against a corresponding inner surface of the holding part. This avoids that the holding part is deformed radially inwardly.
  • the compression spring element advantageously engages in a frontal depression of the wedge slide.
  • the plug connection is used to connect a connecting cable with a heating cable electrically.
  • the heat output of the heating pipe keeps pipes or surfaces constant at the desired temperature and partially compensates for differences in the ambient temperature.
  • the connector has two fittings 1, 2, in Fig. 1 in unfixed position and in Fig. 2 are shown in a mated position.
  • the connecting piece 1 is connected to the connecting line 3, via which current / voltage is led to sockets 4.
  • the connector 2 is provided with the heating tape 5, which is led out like the connecting line 3 from the connector.
  • the heating tape 5 is electrically connected to plugs 6, which engage in mating connectors 1, 2 in the sockets 4 ( Fig. 2 ).
  • the sockets 4 of the connecting piece 1 project partially into a receiving space 7 which is delimited by a part of a housing 8 of the connecting piece 1.
  • the connecting piece 2 engages with a head part 9 in the receiving space 7 on.
  • the head part 9 is held positively in the receiving space 7 and rests with its outer wall 10 against the inner wall 11 of the receiving space 7.
  • the head part 9 is provided on its outer side with a circumferential seal 12 which is housed in an open to the end face of the head part 9 annular groove 13.
  • the seal 12 also covers part of the end face 14 of the head part 9. In the assembled state, the seal 12 is sealingly against the inner wall 11 of the receiving space 7.
  • the connector 2 consists of three modules 15 to 17 ( Fig. 3 ).
  • the assembly 17 has a receiving space 18 which is open at the front and is closed by a bottom 19. Through him the heating tape 5 projects into the receiving space 18.
  • the assembly 17 has the head part 9 with the described seal 12th
  • the assembly 16 is inserted, which is arranged in a form-fitting manner in the receiving space 18.
  • the assembly 16 is pushed so far until it rests with its end face 20 on the bottom 19 of the assembly 17 ( Fig. 4 ).
  • a sealing device 36 In the assembly 16 is a sealing device 36, with which the heating tape 5 in the inlet region in the assembly 16 in a manner to be described ( Fig. 10 to 13 ) is sealed. This device is designed so that the heating tape 5 initially loosely protrudes through the through hole 21 so that it can be easily connected to the connectors 6.
  • the assembly 16 is provided with a molded seal 22, with which the heating tape 5 is sealed. Also, with the mold seal 22, the assembly 16 is sealed near the bottom 19 against the assembly 17.
  • the assembly 16 is completely within the receiving space 18.
  • the assembly 15 is inserted into the receiving space 18, which is provided with the connectors 6.
  • the assembly 15 has a Lid 23 with which it is mounted ( Fig. 5 ) rests with the interposition of the seal 12 on the end face of the head part 9 of the assembly 17.
  • the cover 23 projects beyond a housing part 24, which with a tapered end 25 between the free end 26 (FIG. Fig. 3 ) of the assembly 16 and the inner wall 27 (FIG. Fig. 3 ) of the receiving space 18 protrudes.
  • At the transition to the free end 25 of the housing part 24 is provided with a peripheral outer shoulder 28, with which the assembly 15 comes to a shoulder 29 in the inner wall 27 of the receiving space 18 to the plant.
  • the head part 9 of the assembly 17 is provided at the front side with at least one locking element 31, with which the assembly 15 is locked in the installation position.
  • the lid 23 of the assembly 15 is provided with at least one counter-locking element cooperating with the locking element 31 (not shown). Through the cover 23 of the assembly 15, the plug 6 protrude.
  • the assemblies 15, 16 are each designed as plug-in modules, which can be mounted by simple plug-in operations in the assembly 17.
  • the connector 1 ( 6 and 7 ) has the assembly 32, in which the assembly 33 is inserted.
  • the assembly 32 has a housing 34 with a receiving space 35 for the assembly 33 and a sealing device 36, which is based on the Fig. 10 to 13 will be explained in more detail.
  • the sealing device 36 is inserted so far into the receiving space 35 that it bears against the bottom 37 of the receiving space 35.
  • the assembly 33 is formed substantially the same as the assembly 15.
  • the assembly 33 has a lid 38, which projects beyond a housing part 39 on all sides and in the installation position ( Fig. 7 ) rests against a peripheral shoulder 40 in the inner wall 41 of the receiving space 35.
  • the housing part 39 rests against the inner wall 41 of the receiving space 35 in the region between the shoulder 40 and the sealing device 36.
  • the tapered free end 42 of the housing part 39 abuts against the outside of a stop sleeve (holding part) 43 of the sealing device 36.
  • connection line 3 is reliably sealed within the receiving space 35.
  • a strain relief device 44 is housed, based on the Fig. 14 to 16 will be explained in more detail.
  • the cover 38 is, as has been explained with reference to the assembly 15, locked to the housing part 39.
  • the heating tape 5 ( 8 and 9 ) is stripped at one end. On this stripped end 46, an insulating 47 is placed. It has a sleeve portion 48 which is adapted to the circumference of the stripped heating band 46 and which sits on the heating tape 5 in a peel-proof manner.
  • the heating tape 5 has two wires 49, 50, for example, which are electrically connected to the plug 6.
  • the stripped portions of the strands 49, 50 are surrounded over most of their length by tubular insulating members 51, 52, which are advantageously integrally formed with the sleeve member 48.
  • the insulating parts 51, 52 are firmly seated on the strands 49, 50.
  • the insulating element 47 is provided with a reservoir 53 for an electrically insulating sealing medium 54.
  • the sealing medium is advantageously an electrically insulating gel.
  • the reservoir 53 is closed by a plunger 55.
  • the reservoir 53 is located in a central portion 56 of the insulating member 47.
  • this center piece 56 is located in the region between the insulating parts 51, 52 and is advantageously integrally formed with them.
  • the plunger 55 closes off the reservoir 53 at the free end of the middle piece 56. At the other end opens into the reservoir 53, a nozzle-shaped, only small Cross-section opening 57 which passes through the bottom of the middle piece 56.
  • the center piece 56 is spaced from the heating tape 5, so that between them a sealing space 58 is formed, which is empty before the connection of the heating tape 5 to the plug 6.
  • the sealing space 58 is penetrated by the strands 49, 50.
  • In the area of the sealing space 58 is provided with conical sealing chambers 59, 60, through which the strands 49, 50 extend.
  • the plunger 55 comes with his head 61 to rest on the bottom 62 of the housing part 24 of the assembly 15.
  • the plunger 55 is pushed into the reservoir 53 until it is mounted Heating strip 5 rests with its head 61 on the end face 63 of the central piece 56.
  • the dimensions are such that the head 61 abuts both the bottom 62 of the housing part 24 and on the end face 63 of the middle piece 56 ( Fig. 9 ).
  • the sealing medium 54 located in the reservoir 53 is displaced by the plunger 55 via the opening 57 into the sealing chambers 58 to 60.
  • the amount of sealing medium 54 and the volume of the sealing chambers 58 to 60 are coordinated so that the sealing chambers are completely filled by the sealing medium 54.
  • This sealing medium prevents that 58 to 60 moisture can accumulate in the region of the sealing chambers. This prevents moisture or wet conditions of use of the heating strip 5 that penetrates moisture due to capillary action, which could lead to an electrical, conductive creepage distance between the two strands 49, 50 and thus to dangerous leakage currents.
  • the sealing medium 54 thus prevents in the worst case that a short circuit occurs, whereby the heating cable 5 and thus the entire connector would be destroyed.
  • the plunger 55 abuts against the wall of the middle piece 56 such that no sealing medium 54 can escape past the plunger 55.
  • the plunger 55 has at least one further annular groove 65 in the region of the underside of the head 61. In it, the edge 64 of the middle piece 56 engages when the strands 49, 50 are connected to the plug 6.
  • the plunger 55 is still provided with a further annular groove 65, so that it can be held in an intermediate position.
  • the plunger 55 is not only secured by the engagement of the edge 64 of the central piece 56, but also by the abutment of the head 61 of the plunger 55 at the bottom 62 of the housing part 24th
  • This seal can be applied not only to the heating tape 5, but also in the connection line. 3
  • the sealing device 36 in the connection piece 2 has a shaped body 22 (FIG. Fig. 3 ) forming sealing body 66 ( Fig. 10 ), which is housed in the receiving space 18 of the main body 17.
  • a shaped body 22 FIG. Fig. 3
  • sealing body 66 Fig. 10
  • the annular groove 68 is located in the underside of an annular disc 69 of the sealing body 66.
  • annular disc 69 At the radially outer edge of the annular disc 69 includes a ring member 70 and to the radially inner edge of the annular disc 69, a ring member 71. Both ring parts 70, 71 are formed integrally with the annular disc 69.
  • the outer ring member 70 is provided on its outer side with a wave profile 72. With him, he is on the inner wall 27 of the receiving space 18 sealingly.
  • the longer in the axial direction of the sealing body 66 inner ring member 71 is also provided on the inside with a corresponding wave profile 73. It extends from the free end of only over part of the axial height of the ring member 71. Following the annular disc 69 of the inner ring member 71 rests with its inner side on an annular wall 74 which protrudes from the bottom 19 into the receiving space 18 and a Insertion opening 75 for the heating tape 5 limited.
  • the inner ring part 71 of the sealing body 66 has a bevelled end face 76 which cooperates with a wedge slide 77. It is mounted axially displaceable within a holding part 78.
  • the holding part 78 has an annular wall 79, which rests against the inner wall 27 of the receiving space 18.
  • On the inside of the wall 79 of the wedge slide 77 is on the outside of a wall 80 at.
  • the wall 80 connects to a wedge piece 81, which is annular and whose frontal wedge surface 82 cooperates with the conical end face wedge surface 76 of the sealing body 66.
  • the wedge piece 81 has a smaller outside diameter than the wall 80 of the holding part 78.
  • the annular wall 80 of the wedge slide 77 has two recesses 83, in each of which a compression spring 84 engages.
  • the compression springs 84 are supported at one end at the bottom of the recesses 83 and at the other end to a pressure piece 85, which is guided displaceably within the holding member 78.
  • the pressure piece 85 bears against an actuating element 86, which is likewise guided on the inside of the wall 79 of the holding part 78.
  • the actuator 86 is part of the assembly 15, which is inserted into the module. In this insertion process, the pressure piece 85 is moved over the actuator 86.
  • Fig. 10 shows the sealing device 36 in the starting position.
  • the sealing body 66 rests against the inner wall 27 of the receiving space 18 with the outer ring part 70, while the inner ring part 71 has a distance from the heating strip 5.
  • the sealing body 66 rests on the projection 67, wherein the circular writing 69 of the sealing body 66 has a distance from the bottom 19.
  • the wedge slide 77 touches the conical end face 76 of the ring member 71. If the assembly 15 is inserted with the actuating element 86 in the assembly 17, then the wedge slide 77 is moved over the pressure piece 85 and the compression springs 84.
  • the wedge surface 82 of the wedge slide 77 presses on the conical end face 76 of the inner ring member 71 and thereby displaces the sealing body 66 axially so far that it rests with its annular disc 69 sealingly on the bottom 19 of the assembly 17 ( Fig. 11 ).
  • the protruding over the annular wall 74 of the assembly 17 part of the inner ring member 71 of the sealing body 66 is elastically deformed so far radially inward that it comes with its inner side sealingly on the heating tape 5 to the plant.
  • the compression springs 84 are biased so that the sealing body 66 ensures the sealing of the heating strip 5 even after a long period of use.
  • the sealing body 66 and the sealing wedge 77 are matched to one another such that a sufficiently long tensioning path is available over a long service life of the plug connection. This ensures that the annular part 71 of the sealing body 66 bears sealingly over the circumference of the heating strip 5.
  • the wedge slide 77 is performed properly within the holding member 78.
  • the holding part 78 has an end region 87, with which it engages between the two ring parts 70, 71 of the sealing body 66.
  • the end portion 87 is formed so that the two ring parts 70, 71 with their outer sides facing each other flat on the outer sides of the end portion 87 and the annular disc 69 of the sealing body 66 in the starting position ( Fig. 10 ) lie flat against the end face of the end region 87.
  • the end region 87 thereby ensures that during displacement and during the elastic deformation of the sealing body 66, the two ring parts 70, 71 each in their sealing position be held or brought.
  • the end portion 87 tapers conically towards its free end.
  • the annular disc 69 of the sealing body 66 has a small distance from the end face of the end region 87 of the holding part 78 (FIG. Fig. 11 ).
  • the end region 87 overlaps the annular wall 74 of the assembly 17 in the radial direction (FIG. FIGS. 10 and 10 ) seen. This ensures that in particular the inner ring part 71 remains clamped in its elastic deformation between the end portion 87 and the annular wall 74, so that the inner ring member 71 is reliably deformed radially inwardly for sealing contact with the heating tape 5.
  • the spring forces can be low. They are only set so high that the ring member 71 of the sealing body 66 rests sealingly radially on the inner side of the heating tape 5.
  • the spring force can therefore be relatively low, in particular because the radial deformation is achieved via the wedge surface 82 of the wedge slide 77. Due to the radial deformation on the written wedge effect of the inner ring member 71 is substantially only moved radially against the heating tape 5, so that no Verwalkungs bin occurs at the contact points between the ring member 71 and the heating tape 5. Such Verwalkept occur in known seals, because they deform in the circumferential direction, causing leaks occur, so that the medium can reach the strands of the heating tape 5.
  • the heating tape 5 is still freely displaceable in the assembly 17, because the ring member 71 of the sealing body 66 has a distance from the heating tape. It can thus be easily moved to the most favorable position for mounting. Only by inserting the assembly 15 of the ring member 71 is deformed in the manner described above the inclined plane formed by the cooperating wedge surfaces 76, 82 radially inwardly to the sealing contact with the heating tape 5. The compression springs 84 exert in the installed position a sufficiently high force, so that the ring member 71 sealingly abuts the collar 5.
  • the wave profiles 72, 73 on the two ring parts 70, 71 are designed approximately semicircular in axial section.
  • the two wave profiles thus have an O-ring-like contour, which ensures a perfect seal.
  • This O-ring-like contour is also elastically deformed in the installed position, so that a high sealing effect is achieved.
  • the connector can be used easily in a wide temperature range without the sealing effect is impaired.
  • the connector described, for example, for a temperature range of about -60 ° C to about + 180 ° C. Since in this temperature range, the material properties and the dimensions of the individual parts of the assembly change, is described by the elastic deformation of the sealing body 66 in Connection with the prestressed compression springs 84 ensures that a good seal is ensured at all times.
  • the wedge piece 81 engages the end portion 87 of the holding member 78.
  • the wedge piece 81 has an axial straight outer side 88, with which the wedge piece 81 abuts against a corresponding inner surface 89 of the end portion 87 of the holding member 78.
  • the sealing device 36 is provided with two opposing compression springs 84.
  • heating strips 5 can be sealed with different outer dimensions.
  • the sealing device 36 not only the heating tape 5 is sealed, but also the area of the following connection terminals 90 (FIG. Fig. 1 ). The areas of the plug 6 and the sockets 4 are secured in this way against moisture ingress and resulting leakage currents.
  • the sealing of the heating tape 5 has been described.
  • the sealing device 36 is also provided in the connecting piece 1 for sealing the connecting line 3. Also, it can be easily sealed in the manner described, the seal over the described wide temperature range is reliably guaranteed.
  • the strain relief device 44 is provided on both connecting pieces 1, 2 for the connection line 3 and the heating tape 5 ( Fig. 1 and 2 ) and is based on the Fig. 14 to 16 described in more detail.
  • the connecting line 3 or the heating tape 5 is clamped between four pressure pieces 91 to 94. This results in a 4-point strain relief.
  • the plungers 91 and 92 are approximately the same design and arranged in mirror image to each other.
  • the opposing plungers 93 and 94 are identical, but arranged in mirror image to each other. For this reason, only one of the plungers 91 and 93 will be described in more detail below.
  • the pressure piece 91 has a block-shaped main body 95 with two mutually parallel side surface 96, 97.
  • the bottom 98 extends substantially straight, while the opposite top 99 extends over its length convexly curved.
  • the base body 95 has at both ends the mutually parallel narrow sides 100, 101 which connect at right angles to the side surfaces 96, 97.
  • the two side surfaces 96, 97 are provided with recesses 102, 103, of which in Fig. 14 only one depression 103 can be seen.
  • the depression 102 located in the narrow side 96 has the same configuration as the depression 103.
  • These depressions 102, 103 taper from the lower side 98 in the direction of the upper side 99 of the base body 95. In each depression, two converge from the lower side 98 extending grooves 104, 105 which extend over the height of the recess 102, 103.
  • the main body 95 is penetrated by two openings 106, 107, which run parallel to one another and perpendicular to the underside 98. Through these openings 106, 107 screws 108, 109 are inserted, with which in conjunction with threaded bushes 110, 111, the two pressure pieces 91 and 92 are connected together. Since the plungers 93, 94 are positively connected to the pressure pieces 91, 92, the plungers 93, 94 are secured with the screws 108, 109 and the threaded bushes 110, 111.
  • a rib 112, 113 running in the vertical direction is provided on the side surfaces 96, 97, which extends from the lower side 98 to the upper side 99 of the base body 95 and separates the two grooves 104, 105 from one another.
  • the ribs 112, 113 project beyond the side surfaces 96, 97.
  • the underside 98 of the main body 95 is provided with a depression 114 adapted to the outline shape of the connection line 3 or the heating tape 5.
  • a depression 114 adapted to the outline shape of the connection line 3 or the heating tape 5.
  • the projections 115, 116 extend across the width of the bottom 98 and serve as stops with which the plungers 91, 92 can come into contact with each other.
  • the projections 115, 116 are so high that in the stop position, the connection line 3 lying between them or the heating tape 5 are not deformed to an excessive extent.
  • the pressure pieces 93, 94 are formed as sliding wedges, which are displaceable perpendicular to the pressure pieces 91, 92.
  • the pressure pieces 93, 94 have a flat clamping piece 117, whose end-face clamping surface 118 (FIG. FIGS. 15 and 16 ) is adapted to the outline shape of the connecting line 3 and the heating strip 5.
  • the clamping piece 117 At the top and bottom of the clamping piece 117 are along its longitudinal side in each case two flat webs 119, 120 from, which are each formed triangular.
  • the connecting line 3 or the heating tape 5 facing triangle sides of all webs 119, 120 lie in a common plane.
  • the webs 119, 120 are each provided with a cam 121, 122 on their mutually facing inner sides.
  • the cams 121, 122 engage in the grooves 104, 105 of the plungers 91, 92 a.
  • the screws 108, 109 are sunk with their screw head 125, 126 in the openings 106, 107 of the pressure piece 91 (FIGS. FIGS. 15 and 16 ).
  • the openings 106, 107 are each provided with a shoulder 127, 128 for supporting the screw head 125, 126, against which the screw head 125, 126 rests.
  • the threaded bushes 110, 111 are sunk in the openings 106, 107 of the base body 92. These openings are adapted to the shape of the threaded bushes 110, 111 so that they lie flat over their length on the inner wall of the openings 106, 107.
  • the screws 108, 109 are initially only screwed into the threaded bushes 110, 111 so far that the pressure pieces 91 to 94 are spaced from the connecting line 3 or from the heating strip 5 (FIG. Fig. 15 ).
  • the screws 108, 109 are screwed further into the threaded bushings 110, 111.
  • the pressure pieces 91, 92 approach each other.
  • the sliding wedges 93, 94 are moved in the direction of each other due to the engagement of their cams 121, 122 in the grooves 104, 105.
  • the grooves 104, 105 in the pressure pieces 91, 92 extend at 45 ° to the ribs 112, 113, so that the sliding wedges 93, 94 are displaced uniformly together with the pressure pieces 91, 92 against the connection line 3 and the heating tape 5.
  • the screws 108, 109 are screwed in until the plungers 91 to 94 clamp the connection line 3 or the heating tape 5 sufficiently firmly ( Fig. 16 ). It takes place with the four pressure pieces a 4-point strain relief, where they rest at right angles to each other lying points of the connecting line 3 and the heating strip 5.
  • the compression springs 123, 124 ensure that the plungers 91 to 94 are automatically pushed back when screwing back the screws 108, 109.
  • the plungers 93, 94 are driven apart as a result of their forced guidance in the pressure pieces 91, 92.
  • the triangular webs 119, 120 of the plungers 93, 94 lie in the recesses 102, 103 of the plungers 91, 92.
  • the webs 119, 120 are formed so narrow that they do not or only slightly from the recesses 102, 103 protrude. The strain relief 44 therefore takes up little space.
  • FIG. 1 and 2 show the strain relief devices 44 in the connecting pieces 1, 2 near the inlet opening of the connecting line 3 and the heating tape 5 in corresponding receiving spaces 129, 130 housed.
  • the connecting cable 3 or the heating cable 5 With the 4-point clamping the connecting cable 3 or the heating cable 5 is always clamped centrally. As a result, the connecting line 3 or the heating tape 5 are also guided centrally through the inlet opening of the connecting pieces 1, 2 inwards. Since a 4-point clamping takes place, the connecting line 3 or the heating tape 5 is not or only slightly changed in its outline shape. The four points of attack of the pressure forces lead to a reliable and high strain relief, so that even with higher tensile forces there is no risk that the connection cable 3 or the heating tape 5 are pulled out of the fittings 1, 2.
  • the strain relief device 44 also ensures that the heating cable and the connecting cable is centered exactly to the sealing device and thereby ensures a perfect seal.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (7)

  1. Connexion par enfichage avec au moins une conduite conductrice (3, 5), comprenant au moins un dispositif d'étanchéité (36), de la conduite (3, 5) qui comporte au moins un corps d'étanchéité (66) comportant au moins une partie d'étanchéité (71) élastiquement déformable qui peut se déformer élastiquement contre la conduite (3, 5), par transmission d'une force agissant dans la direction longitudinale de cette conduite (3, 5) ce, transversalement à cette direction longitudinale, la partie d'étanchéité (71) pouvant être déformée élastiquement au moyen d'au moins un coulisseau (77) qui est équipé d'une surface en coin (82) qui coopère avec une surface conique (76) de la partie d'étanchéité (71),
    caractérisé en ce que
    le coulisseau à coin (77) est guidé dans une pièce de retenue (78) qui bloque axialement le corps d'étanchéité (66), et le coulisseau à coin (77) est précontraint axialement par au moins un élément de ressort de compression (84) qui peut être actionné par au moins un élément de compression (85).
  2. Connexion par enfichage conforme à la revendication 1,
    caractérisée en ce que
    l'élément de compression (85) peut coulisser à la partie interne de la pièce de retenue (78).
  3. Connexion par enfichage conforme à la revendication 1 ou 2,
    caractérisée en ce qu'
    un élément d'actionnement (86) et une partie d'un ensemble d'enfichage (15) de la connexion par enfichage (1, 2).
  4. Connexion par enfichage conforme à l'une des revendications 1 à 3,
    caractérisée en ce que
    la pièce de retenue (78) comporte une paroi annulaire (79) qui s'applique sur la paroi interne (27) d'un volume de réception (18) d'un élément de connexion (2) de la connexion par enfichage (1, 2).
  5. Connexion par enfichage conforme à l'une des revendications 1 à 4,
    caractérisée en ce que
    un élément à coins (81) du coulisseau à coin (77) est situé entre la pièce de retenue (78) et la partie d'étanchéité (71).
  6. Connexion par enfichage conforme à la revendication 5,
    caractérisée en ce que
    l'élément à coin (81) du coulisseau à coin (77) comporte une face interne (88) rectiligne en coupe axiale par laquelle cet élément à coin (81) s'applique sur une surface interne correspondante (89) de la pièce de retenue (78).
  7. Connexion par enfichage conforme à l'une des revendications 1 à 6,
    caractérisée en ce que
    l'élément de ressort de compression (84) vient en prise dans une cavité frontale (83) du coulisseau à coin (77).
EP12812850.1A 2011-12-22 2012-12-18 Assemblage par enfichage doté d'une conduite conductrice Active EP2795738B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011121938A DE102011121938A1 (de) 2011-12-22 2011-12-22 Stromführende Leitung und Steckverbindung mit einer solchen stromführenden Leitung
PCT/EP2012/005233 WO2013091838A2 (fr) 2011-12-22 2012-12-18 Conduite conductrice et assemblage par enfichage doté d'une telle conduite conductrice

Publications (2)

Publication Number Publication Date
EP2795738A2 EP2795738A2 (fr) 2014-10-29
EP2795738B1 true EP2795738B1 (fr) 2019-09-04

Family

ID=47522447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12812850.1A Active EP2795738B1 (fr) 2011-12-22 2012-12-18 Assemblage par enfichage doté d'une conduite conductrice

Country Status (9)

Country Link
US (1) US9431755B2 (fr)
EP (1) EP2795738B1 (fr)
KR (1) KR101984906B1 (fr)
CN (1) CN104115342B (fr)
CA (1) CA2860012C (fr)
DE (1) DE102011121938A1 (fr)
MX (1) MX342999B (fr)
RU (1) RU2591698C2 (fr)
WO (1) WO2013091838A2 (fr)

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US9437979B2 (en) 2014-04-03 2016-09-06 Cooper Technologies Company Grounding for electrical connectors
WO2016088062A1 (fr) * 2014-12-02 2016-06-09 陈剑 Tuyau de choc électrique et appareil d'électroporation de cellule ayant un tuyau de choc électrique
US9923323B2 (en) * 2015-10-30 2018-03-20 Apple Inc. Cable assemblies, systems, and methods for making the same
EP3223374A1 (fr) * 2016-03-24 2017-09-27 Siemens Aktiengesellschaft Collier pour câble
GB2563906A (en) * 2017-06-29 2019-01-02 Thales Holdings Uk Plc Apparatus for carrying by a person and configured to provide a power and/or data connection to one or more electronic devices also carried by the person.
CN108767576B (zh) * 2018-04-09 2019-11-22 江苏亚龙数码科技有限公司 一种改进的三相电源接插件
CN108832379B (zh) * 2018-06-13 2023-07-04 同济大学 一种水下湿插拔变换装置
DE102018125121A1 (de) 2018-10-11 2020-04-16 Harting Electric Gmbh & Co. Kg Steckverbinder
DE102019001380B3 (de) * 2019-02-26 2020-08-06 Leoni Kabel Gmbh Verfahren zur Herstellung eines Kabels

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DE8707944U1 (de) * 1987-02-20 1987-07-23 Potzas, Peter, 6305 Buseck Vorrichtung zur Zugentlastung von Kabeln
GB9316371D0 (en) * 1993-08-06 1993-09-22 Amp Gmbh Gel sealed connector
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DE9412042U1 (de) * 1994-07-26 1994-09-22 Siemens AG, 80333 München Universelle Kabelklemmvorrichtung
US6254967B1 (en) * 1998-03-12 2001-07-03 Hubbell Incorporated Electrical device, such as a plug or a connector, with nameplate, especially for hazardous locations
DE102005007589B3 (de) * 2005-02-18 2006-06-14 Kathrein-Werke Kg Koaxialsteckverbinder
US7331820B2 (en) * 2005-09-19 2008-02-19 Corning Gilbert Inc. Chemically attached coaxial connector
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FR2908238B1 (fr) * 2006-11-06 2008-12-19 Peugeot Citroen Automobiles Sa Connecteur electrique avec gel d'isolation
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Also Published As

Publication number Publication date
CN104115342A (zh) 2014-10-22
WO2013091838A2 (fr) 2013-06-27
KR20140112042A (ko) 2014-09-22
RU2014130123A (ru) 2016-02-10
CN104115342B (zh) 2017-05-31
CA2860012A1 (fr) 2013-06-27
EP2795738A2 (fr) 2014-10-29
MX2014007720A (es) 2015-04-08
CA2860012C (fr) 2019-04-30
US9431755B2 (en) 2016-08-30
KR101984906B1 (ko) 2019-05-31
WO2013091838A3 (fr) 2013-10-31
US20150044902A1 (en) 2015-02-12
MX342999B (es) 2016-10-21
RU2591698C2 (ru) 2016-07-20
DE102011121938A1 (de) 2013-06-27

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