EP2840657A1 - Securing component, terminal end, kit and electrical connection assembly for a rotationally fixed electrical connection of a cable - Google Patents
Securing component, terminal end, kit and electrical connection assembly for a rotationally fixed electrical connection of a cable Download PDFInfo
- Publication number
- EP2840657A1 EP2840657A1 EP13180904.8A EP13180904A EP2840657A1 EP 2840657 A1 EP2840657 A1 EP 2840657A1 EP 13180904 A EP13180904 A EP 13180904A EP 2840657 A1 EP2840657 A1 EP 2840657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal end
- securing component
- electrical connection
- cable
- fixation
- 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.)
- Granted
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- 230000008878 coupling Effects 0.000 claims abstract description 52
- 238000010168 coupling process Methods 0.000 claims abstract description 52
- 238000005859 coupling reaction Methods 0.000 claims abstract description 52
- 210000000056 organ Anatomy 0.000 claims abstract description 34
- 230000000295 complement effect Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
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- 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
- H01R13/64—Means for preventing incorrect coupling
- H01R13/642—Means for preventing incorrect coupling by position or shape of contact members
Definitions
- the present invention relates to a securing component for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, comprising a coupling designed to be linked with a first terminal end of the connection in a rotationally fixed manner.
- the present invention further relates to a terminal end for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, having a terminal body comprising a coupling element designed to be electrically and mechanically coupled with a first terminal end of the connection.
- a cable such as a high voltage jumper cable
- the present invention relates to a kit for a rotationally fixed electrical connection, such as a high voltage jumper cable, comprising a terminal end of the connection designed to be electrically connected with a first terminal end of the connection.
- the present invention relates to an electrical connection assembly for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, comprising a first terminal end of the connection and a terminal end of the connection that is electrically connected with the first terminal end.
- a cable such as a high voltage jumper cable
- Jumper cables are used for example between the locomotive, rail-road cars and cab cars for multiple-unit train control and the transmission of high voltage electricity.
- a further application of jumper cables is the electrical connection between an automobile or a road tractor with a trailer.
- jumper cables electrically connect two coupled, however individually moveable, units and are thus exposed to rigorous forces acting on the cable connection.
- jumper cables are provided with a terminal end designed as a termination lug, which is placed on a bolt or rod of the other terminal end of the connection. By screwing a nut on the bolt, the cable connection is secured. Uncontrolled rotation of the termination lug may lead to a loosening of the nut and an interruption of the electrical connection.
- the termination lug of the cables can be designed with flat parts that may sit on corresponding flat sides of the bolt at the other terminal end. The corresponding flats avoid rotation of the lug around the bolt.
- the termination lug of the cable needs to be specifically designed with flat parts.
- the direction of the flat parts of the lug defines the angular arrangement of the termination lug with respect to the other terminal end. So, it is necessary to have available many different kinds of lugs and kinds of jumper cables in order to be able to establish the electrical connection of a cable at a specific angle of rotation between the termination lug of the cable and the other terminal end of the electrical connection to meet specific projection requirements of the cable.
- the securing component of the present invention solves this problem by comprising a fixation member capable of securing a terminal end of the connection at various angles of rotation in relation to the securing component.
- the terminal end of the initially mentioned type according to the present invention solves the above technical problem by a terminal body comprising a mounting organ for securing the terminal body at a desired angle of rotation in relation to a first terminal end of the connection, wherein the mounting organ is spaced apart from the coupling element.
- the terminal body of the inventive terminal end can be connected at various different angles of rotation. Since the mounting organ is spaced apart from the coupling element, there is no constraint to be able to mount the terminal end only at one specific angle of rotation. Using the terminal end according to the present invention thus allows to secure the terminal body at various different angles of rotation in relation to the first terminal end of the connection.
- the kit of the initially mentioned type as well as the electrical connection assembly of the originally mentioned type solve the above-mentioned problem by comprising a securing component according to the present invention.
- the coupling of the securing component is linked with the first terminal in a rotationally fixed manner, and the fixation member secures the second terminal end at a selected angle of rotation, i.e. selected from the various predetermined angles of rotation, in relation to the first terminal end.
- the inventive securing component can be linked with the first terminal end of the connection in a rotationally fixed manner via its coupling.
- "Rotationally fixed”/"rotationally fixed manner” in the sense of the present application means that the two link components, such as the securing component and the first terminal, cannot be rotated with respect to each other around a rotational axis (also referred to as axis of rotation).
- the rotational axis is the axis around which a cable, such as a jumper cable, tends to rotate.
- the longitudinal axis of the rod corresponds to the axis of rotation.
- the fixation members of the securing component allow to secure the other terminal end of the connection, for example the cable terminal end, such as a termination lug, at various predetermined angles of rotation in relation to the securing component.
- the cable terminal end such as a termination lug
- This way, different kinds of lugs and jumper cables can be avoided, leading to a reduction in material required, reduction of development time, simplifying manufacturing and installation processes and hence cost reduction.
- the "angle of rotation” is a distinct angle, with respect to the rotational axis, at which the two terminal ends of the electrical connection are electrically and mechanically coupled in a rotationally fixed manner with each other.
- the angle of rotation might be compared to the position of the pointer on the clock, the termination rod being the centre of the clock.
- Various angles of rotation means that the terminal end of the connection may be secured on the fixation member at a minimum of two, preferably three or more, different angles of rotation.
- the different predetermined angles of rotation may lie in the range of 0°to 360°, for example 0° to 180°, or any arbitrary interval therebetween.
- the securing component of the present invention may be a washer comprising the coupling and the fixation member.
- a washed can be easily mass-produced, for example from stamping from a sheet of metal, and is easily designed as required and provided with the coupling and the fixation member.
- the securing component of the present invention has a coupling comprising a fitting profile shaped to interlock with the first terminal end rotationally fixed.
- a fitting profile for example a specific contour or a pin, latch, catch, protrusion or recess, is easy to manufacture and design corresponding to a complementary counterpart on the first terminal end of the electrical connection.
- the fitting profile may be designed as a profiled hole, which is easy to manufacture yet capable of efficiently interlocking with the first terminal end rotationally fixed.
- the profiled hole of the coupling from the securing component may be a through-hole with a circular border, whose circularity is disrupted by flat sections, which can be coupled with the termination flats of a termination rod being the first terminal end.
- the fixation member of the securing component may comprise an array of fixation elements arranged in a predefined pattern.
- each fixation element corresponds to a specific angle of rotation.
- An easy way to achieve this is to arrange the different fixation elements of the array in a curved pattern, for example a curve pattern corresponding to a circular path having the axis of rotation in its centre, wherein the distance from the centre to each fixation element on the circular path is always the same.
- the distance between adjacent fixation elements in the array of the fixation elements may be constant. This allows for a regular series of predetermined angles of rotation provided by the fixation members.
- the different angles of rotation may be equidistantly spaced apart from each other, for example by 5°, 10°, 15°, or an arbitrary degree between 1° and 120°.
- At least one of the fixation elements in the array is formed as a fixation recess and/or a fixation protrusion.
- the recess may be formed for example as a hole, such as a through-hole, and the fixation protrusion may be designed as a pin or pall projecting out of the body of the securing component.
- a series of holes is arranged in a predetermined pattern.
- the securing component of the present invention may further comprise a guiding structure for routing the second terminal end along the various predetermined angles of rotation.
- a guiding structure for example a curved guide rail or a curved guide groove that may be concentrically arranged around the axis of rotation, facilitates selecting one of the various predetermined angles of rotation.
- the fixation member is arranged adjacent to or is arranged on the guiding structure.
- This proximity/conformity of the fixation member and the guiding structure allows for a very compact design of the securing component, while at the same time having the advantage of easily reaching the selected angle of rotation from the various predetermined angles of rotation at the fixation member.
- the securing component may comprise a guide rail with various protrusions and/or recesses in the rail.
- the mounting organ comprises an anchorage recess or anchorage protrusion.
- the terminal end of the present invention may comprise a lead structure for moving the mounting organ to the desired angle of rotation. This facilitates the arrangement of the terminal end at the desired angle of rotation with respect to the first terminal end, such as a terminal rod.
- the lead structure may comprise a lead groove and/or a lead rail.
- the lead structure of the terminal end may be complementary to the guiding structure of the securing component. This way, the guiding structure of the securing component and the lead structure of the terminal end may constitute a guidance defining the rotational movement of the terminal end with respect to the securing component.
- the terminal end may be a terminal end according to the present invention.
- the mounting organ of the terminal end may be complementary to the fixation member, preferably the fixation elements from the array of fixation elements.
- the terminal end may be provided with an anchorage recess as a mounting organ and the securing component may comprise an array of fixation protrusions which may be inserted into the anchorage recess for a rotationally fixed connection at a specific angle of rotation.
- the mounting organ may comprise an anchorage protrusion and the fixation member of the securing component may comprise an array of fixation recesses arranged in a defined pattern, into which the anchorage protrusion may be inserted.
- the kit of the present invention may further comprise a fastener for locking the fixation member of the securing component and the mounting organ of the second terminal end at a predetermined position with respect to each other.
- a fastener for locking the fixation member of the securing component and the mounting organ of the second terminal end at a predetermined position with respect to each other.
- the electrical connection assembly according to the present invention may have a fastener locking the fixation member of the securing component and the mounting organ of the terminal end of the selected position with respect to each other.
- the present invention improves the electrical and mechanical connection of a cable 1, such as a jumper cable used as part of a high voltage roof-line on a high speed trains.
- a cable 1 interconnect the terminations 2 on adjacent units, such as wagons.
- Jumper cables need to be flexible and must be resistant to the rigors of the high voltage rail environment.
- Fig. 1 shows an exemplary representation of such cable 1 interconnecting two terminations 2.
- Figs. 5a and 5b show in detail how the cable 1 is connected by means of a rotationally fixed electrical connection 3 with each of the terminations 2.
- the cable 1 in the shown embodiment is a coiled jumper cable, providing high flexibility.
- a terminal end 4 is provided at each end of the cable 1.
- the terminal end 4 is designed as a termination lug 5 in the shown embodiment.
- the terminal end 4 is shown in detail in Figs. 4a and 4b and will be described in more detail below.
- the terminal end 4 of the cable 1 is electrically connected with a first terminal end 6 of the terminations 2.
- the first terminal end 6 of the terminations 2 is designed as a termination rod 7.
- Said termination rod comprises a coupling section 8 having a substantially circular cross-section, however with two flats 9.
- the two flats 9 are arranged opposite to the coupling section with respect to the longitudinal axis L of the termination rod 7.
- This cross-section of the termination rod 7 comprising the coupling section 8 with flats 9 achieves the linkage of the securing component 10 of the present invention on the first terminal end 6 in a rotationally fixed manner, as for example depicted in Fig. 3 , the detail of which will be described below.
- the terminal end 4 is designed in the shown embodiment as a termination lug 5 having a terminal body 11 with a coupling element 12 designed as a circular through-hole 13, as can best be seen in Figs. 4a and 4b .
- the distal section 14 of the termination rod 7 is pushed through the coupling through-hole 13 of the termination lug 5 until it abuts the front face 15 of the coupling section 8 from the termination rod 7, thereby establishing the electrical connection between the termination rod 7 and the termination lug 5.
- a nut 16 is screwed on the distal section 14 of the termination rod 7.
- An electrical connection 3 of a cable 1, such as a high voltage jumper cable as depicted in Fig. 1 has to sustain the rigors of the high voltage rail environment.
- One problem of such electrical connection 3 is that uncontrolled rotations of the termination lug 5 around a rotation axis R, which coincides with the longitudinal direction L of the termination rod 7, are to be avoided because such uncontrolled rotations may lead to the loosening of the nut 16 and the interruption of the electrical connection 3.
- the securing component 10 for a rotationally fixed connection 3 of the cable 1 is described.
- the securing component 10 as can be best seen in Fig. 2 , is designed as a securing washer 18 comprising a flat, substantially disc-shaped body 19.
- the body 19 comprises a profiled hole 20 in its center, which constitutes the coupling 21 of the securing component 10 of the present invention.
- the coupling 21 is designed to be linked with the first terminal end 6, in the shown embodiments the termination rod 7 of the termination 2.
- the profiled hole 20 which is through-hole, has a fitting profile 22 defined by its border.
- the bordering fitting profile 22 is substantially circular with two flat border sections 23.
- the flat border sections 23 are symmetrically designed and run substantially parallel to each other on opposite sides of the profiled hole 20.
- the coupling 21, designed as a profiled hole 20 having a fitting profile 22 with flat border sections 23, is thus complementary to the cross-section of the coupling section 8 at the termination rod 7.
- the securing component 10 can hence be linked with the first terminal end 6 by placing the coupling section 8 of the termination rod 7 inside the profiled hole 20 of the coupling 21 from the securing component 10 in such a way that the flat border sections 23 of the profiled hole 20 are aligned with and abut with the flats 9 of the coupling section 8 of the termination rod 7.
- the securing component 10 is linked in a rotationally fixed manner, i.e. in a way that it cannot be rotated around the rotational axis R, on the first terminal end 6 of the termination 2.
- the securing component 10 shown in Fig. 2 is linked in a rotationally fixed manner with the first terminal end 6 of the termination 2, which is shown in detail in Fig. 3 .
- the securing component 10 further comprises a fixation member 24 that is capable of securing the terminal end 4 of the electrical connection 3 at various angles of rotation ⁇ in relation to the securing component.
- the fixation member 24 of the exemplary embodiment shown in the figures comprises an array of fixation elements 25, 25a, 25b, 25c and 25d, arranged in a predefined pattern.
- the array of fixation elements 25 to 25d is arranged in a curve pattern following the circular shape of the body 19 from the securing washer 18.
- the array of fixation elements 25 to 25d is arranged adjacent to one of the flat border sections 23 of the fitting profile 22.
- Each of the fixation elements 25 to 25d corresponds to a specific angle of rotation ⁇ at which the terminal end 4 can be secured in relation to the securing component 10.
- the individual fixation elements 25 to 25d are at constant distance between adjacent fixation elements.
- the difference between the specific angles of rotation ⁇ , corresponding to adjacent fixation elements, corresponds to about 15° in the shown embodiment.
- fixation elements 25 to 25d are all formed as fixation recesses 26 to 26d.
- fixation recesses 26 to 26d are designed as through-holes extending through the body 19 of the securing component 10.
- Each of the through-holes forming the fixation recesses 26 to 26d is designed with an internal thread, the purpose of which will be described in more detail below.
- the securing component 10 of the first embodiment further comprises a guiding structure 27.
- the securing component 10 may route the terminal end 4 along the various different angles of rotation, at which the terminal end 4 may be secured in relation to the securing component 10 using the fixation member 24.
- the guiding structure 27 is designed as a guide rail 31 projecting from the front side 28 of the disc-shaped body 19 of the securing washer 18.
- the guide rail 31 stands up from the front side 28 close to the outer edge 29 of the disc-shaped body 19.
- One face of the guiding structure 29 is forming a slide face 30, which serves as a guidance for routing the terminal end 4 along the fixation member 24.
- the guide rail 31 is formed in that area of the securing component 10 where the fixation member 24 with its array of fixation elements 25 to 25d is designed.
- the fixation recesses 26 to 26d are holes extending through the guide rail 31 in a direction parallel to the rotational axis R.
- the fixation member 24 is arranged on the guiding structure 27, which facilitates to direct the terminal end 4 to a specific fixation element 25 to 25d from their array of fixation members, in order to select a specific angle of rotation ⁇ , under which the terminal end 4 is to be secured in relation to the securing component 10.
- a further advantage of a rail 31 is that the thickness of the body 19 of the securing component 10 is increased. This increase makes it possible to make the fixation elements 25 to 25d, in particular fixation recesses 26 to 26d, longer, which adds to the stability of the securing component 10 as well as the electrical connection assembly 17.
- the fixation recesses 26 to 26d may be arranged on areas of the body 19 of the securing component 10, having an improved thickness by adding more material on the washer 18, regardless of the guiding structure 27. That is, the securing component 10 may comprise, in certain embodiments, fixation recesses 26 to 26d in areas where the body 19 has an increased thickness, while the securing component 10 may or may not comprise a guiding structure 27.
- FIG. 3 shows the securing component 10 of Fig. 2 linked with the coupling section 8 of the termination rod 7 of the first terminal end 6 from the termination 2.
- Fig. 3 shows the securing component 10 of Fig. 2 linked with the coupling section 8 of the termination rod 7 of the first terminal end 6 from the termination 2.
- terminal end 4 for a rotationally fixed electrical connection 2 of a cable 1 according to the present invention is described.
- One embodiment of such terminal end 4 is schematically depicted in Figs. 4a and 4b .
- the terminal end 4 is designed as a terminal lug 5 having a tubular section 32 that is crimped to the leads of the cable 1.
- the terminal lug 5 ends in a flat, plate-like connection section 33, which comprises the coupling element 12 of the terminal end 4 that is designed as the coupling through-hole 13 extending from the connection face 34 to the connection section 33. Said connection face 34 is brought into electrical contact with the first terminal end 6 of the termination 2.
- the fastening face 35 of the connection section 33 that is opposite to the connection face 33 is the side where the nut 16 presses on the terminal lug 5 to keep the electrical connection 3 mechanically and electrically connected.
- the coupling through-hole 13 has a circular border 36.
- the circular shape of the coupling through-hole 13 allows to rotate the termination lug 5, if placed on the distal section 14 of the termination rod 7 such that said distal section extends through the coupling through-hole 13.
- the terminal end 4 of the present invention comprises a mounting organ 37.
- the mounting organ 37 is spaced apart from the coupling element 12.
- the mounting organ 37 comprises an anchorage recess 38.
- This anchorage recess 38 is designed as an anchorage hole 39 that also extends from the fastening face 35 to the connection face 34, like the coupling through-hole 13.
- the anchorage hole 39 is, like the fixation recesses 26 to 26d of the securing component 10, provided with an inner thread.
- the anchorage organ 37 is arranged close to the tip 40 of the termination lug 5, said tip 40 being opposite to the tubular section 32.
- the terminal end 4 When the terminal end 4 is seated on the distal section 14 of the termination rod 6, the terminal end 4 can be rotated around the rotational axis R, which coincides with the longitudinal direction L of the termination rod 7. If rotated this way, the mounting organ 37, which is spaced apart from the coupling element 12 of the terminal end 4, may be arranged at various angles of rotation ⁇ , ⁇ a , ⁇ b , ⁇ c , ⁇ d. in relation to the first terminal end 6. This way, the same terminal end 4 can be secured to the first terminal end 6 at various different angles of rotation ⁇ , ⁇ a , ⁇ b , ⁇ c , ⁇ d. using the mounting organ 37 for the mechanical fixation, rather than the coupling through-hole 13, which is usually specifically shaped in the anti-rotational terminal lugs known from the prior art.
- the terminal end 4 further comprises a lead structure 41 for moving the mounting organ 37 to the various different possible angles of rotation ⁇ , ⁇ a , ⁇ b , ⁇ c , ⁇ d .
- the lead structure 41 comprises a lead groove 42.
- the lead groove 42 of the exemplary embodiment shown in Figs. 4a and 4b is designed as a groove shaped at the tip 40 of the connection section 32.
- the groove 42 is designed on the connection face 34 and runs through the whole width of the connection section 33.
- the lead groove 42 opens in the directions facing to the connection face 33, towards the tip 40, as well as both lateral sides 43, 43' defining the width of the connection section 32.
- the lead groove 42 encompasses a slide surface 44 at the side opposite the tip 40 or facing towards the further section 32, i.e. where the thickness of the connection section 33 is reduced.
- This sliding surface is complementary to the slide face 30 of the guiding structure 27 of the securing component 10.
- both the slide surface 44 and the slide face 30 are similar, both having a circular curve that corresponds to a circle drawn with a radius measuring from the centre of the coupling through hole, said centre being on the rotational axis R, and the slide surface 44, or the centre of the profiled hole 20 of the securing component 10, which likewise lies on the rotational axis R, and the slide face 33.
- the complementary slide face 30 of the securing component 10 and slide surface 44 of the terminal end 4 thus form a guidance 30, 44 allowing to move the mounting organ 37 of the terminal end 4 along the array of fixation elements 25 to 25d of the fixation member 24 that are arranged on the guide structure 27 of the securing component 10.
- FIG. 5a and 5b One exemplary fixation under a specific angle of rotation ⁇ is depicted in Figs. 5a and 5b , showing an electrical connection assembly 17 for rotationally fixing an electrical connection 3 of a cable 1.
- FIGs. 5a and 5b an exemplary embodiment of an electrical connection assembly 17 according to the present invention is shown.
- the shown embodiment comprises a first terminal end 6 of the connection 3 and a terminal end 4 of the cable 1 that is electrically connected with the first terminal 6.
- the terminal end 4 is a termination lug 5 as depicted in Figs. 4a and 4b .
- the electrical connection assembly 17 further comprises a securing component 10 according to the present invention.
- the securing component 10 of Figs. 2 and 3 is used.
- the coupling 21 of the securing component 10 is linked with the first terminal end 6 in a rotationally fixed manner as depicted in Fig. 3 .
- the fixation member 24 of the securing component 10 secures the terminal end 4 at a selected angle of rotation ⁇ in relation to the securing component 10.
- the terminal end 4 is secured at a selected angle of rotation ⁇ in that the termination lug 5 is placed on top of the securing component 10 already linked to the first terminal end 6 by inserting the distal section 14 of the termination rod 7 through the coupling through-hole 13 of the termination lug 5 in a way that the slide face 30 and the slide surface 44 are arranged side-by-side.
- This arrangement provides a guidance 30, 44 for rotating the terminal lug 5 around the rotational axis R.
- the mounting organ 37 thereof runs along the array of fixation elements 25 to 25d and a specific fixation element can be selected which corresponds to the desired angle of rotation ⁇ , at which the terminal end 4 is to be connected rotationally fixed on the securing component 10 and the first terminal end 6.
- a fastener 45 locks the fixation member 24 of the securing component 10 and the mounting organ 37 of the terminal end 4 at the selected position with respect to each other.
- this is achieved by a fastener bolt 46 that may be screwed into the threads of the anchorage recess 38 and the selected fixation recess 26, as can be best seen in Fig. 5b .
- a fastener bolt 46 that may be screwed into the threads of the anchorage recess 38 and the selected fixation recess 26, as can be best seen in Fig. 5b .
- kit 47 for rotationally fixing the electrical connection 3 of a cable 1, such as a high voltage jumper cable is shown.
- the kit comprises the terminal end 4 as shown in Figs. 4a and 4b , the securing component 10 as shown in Fig. 2 as well as a fastener 45 for locking the fixation member 20 of the securing component 10 and the mounting organ 37 of the terminal end 4 at the predetermined position with respect to each other.
- the terminal end 4 of the second embodiment as shown in Fig. 7 principally corresponds to the one shown in Figs. 4a and 4b .
- the mounting organ 37 is designed as an anchorage protrusion 38a rather than as an anchorage recess 38.
- the anchorage protrusion 38a is a pin that projects from the surface of the lead groove 42 that faces in the direction of the connection face 34.
- the anchorage protrusion 38a can be inserted into the fixation recesses 26, 26a, 26b, 26c, 26d from the fixation member 24 that corresponds to the desired angle of rotation ⁇ . This way, a separate fastener 45 is not necessary.
- the securing component 10 according to the second embodiment shown in Fig. 8 principally corresponds to the one of the first embodiments shown in Fig. 1 .
- the body 19 of the securing component 10, which is also designed as a securing washer 18, is identical.
- the coupling 21 comprising the profiled hole 20 is also identical in the first and second embodiments shown in Figs. 1 and 8 , respectively.
- the securing component 10 according to the second embodiment differs from the one of the first embodiment in that it does not comprise a guiding structure 27. Furthermore, instead of fixation recesses 26 to 26d, the fixation elements 25, 25a, 25b are formed as fixation protrusions 48, 48a, 48b that project as pins from the front side 28 of the body 19. In the array of fixation elements 25, 25a, 25b of the second embodiment shown in Fig. 8 , the adjacent fixation protrusions 48 and 48a as well as 48 and 48b are equidistantly spaced apart from each other, wherein each of the adjacent fixation protrusions 48, 48a, 48b corresponds to an offset in the angle of rotation ⁇ of 60°.
- the securing component 10 according to the third embodiment shown in Fig. 9 principally corresponds to the one of the first embodiment shown in Fig. 1 .
- the body 19 of the securing component 10, which is also designed as a securing washer 18, is identical and the coupling 21 comprising a profiled hole 20 is also identical in the first, second and third embodiments, shown in Figs. 1 , 8 and 9 , respectively.
- the securing component 10 like the one of the first embodiment shown in Fig. 1 , comprises an array of fixation elements 25 to 25j.
- the fixation elements are designed as fixation recesses 26 to 26j in the third embodiment of the securing component 10 as well.
- the fixation recesses to 26 to 26j are designed in areas of the body 19 of the securing component 10, having an improved thickness, so the holes of the recesses 26 to 26j can be made longer providing an improved stability of the securing component 10 as well as an electrical connection assembly 17 comprising said component 10.
- the array of fixation elements 25 to 25j in the third embodiment comprises more elements, namely a total of 11 fixation elements 25 to 25j, compared to the five fixation elements 25 to 25d of the first embodiment.
- the array of fixation elements 25 to 25j according to the securing component 10 of the third embodiment thus spans more of the circumference of the disc-shaped body 19, allowing to secure the terminal end 4 at more possible angles of rotation ⁇ in relation to the securing component 10.
- the individual fixation elements 25 to 25j are at constant distance between adjacent fixation elements.
- the securing component 10 of the third embodiment even though not essential, further comprises a guiding structure 27.
- the securing component 10 may route the terminal end 4 along the various different angles of rotation, at which the terminal end 4 may be secured in relation to the securing component 10 using the fixation member 24.
- the guiding structure 27 is designed as a guide rail 31 projecting from the front side 28 of the disc-shaped body 19 of the securing washer 18.
- the guide rail 31 stands up from the front side 28 close to the outer edge 29 of the disc-shaped body 19.
- One face of the guiding structure 29 is forming a slide face 30, which serves as a guidance for routing the terminal end 4 along the fixation member 24.
- the guide rail 31 is formed in that area of the securing component 10 where the fixation member 24 with its array of fixation elements 25 to 25j is designed.
- the fixation recesses 26 to 26j are holes extending through the guide rail 31 in a direction parallel to the rotational axis R.
- the fixation member 24 is arranged on the guiding structure 27, which facilitates to direct the terminal end 4 to a specific fixation element 25 to 25j from their array of fixation members, in order to select a specific angle of rotation ⁇ , under which the terminal end 4 is to be secured in relation to the securing component 10.
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- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
- The present invention relates to a securing component for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, comprising a coupling designed to be linked with a first terminal end of the connection in a rotationally fixed manner.
- The present invention further relates to a terminal end for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, having a terminal body comprising a coupling element designed to be electrically and mechanically coupled with a first terminal end of the connection.
- Moreover, the present invention relates to a kit for a rotationally fixed electrical connection, such as a high voltage jumper cable, comprising a terminal end of the connection designed to be electrically connected with a first terminal end of the connection.
- Further, the present invention relates to an electrical connection assembly for a rotationally fixed electrical connection of a cable, such as a high voltage jumper cable, comprising a first terminal end of the connection and a terminal end of the connection that is electrically connected with the first terminal end.
- Jumper cables are used for example between the locomotive, rail-road cars and cab cars for multiple-unit train control and the transmission of high voltage electricity. A further application of jumper cables is the electrical connection between an automobile or a road tractor with a trailer.
- Principally, such jumper cables electrically connect two coupled, however individually moveable, units and are thus exposed to rigorous forces acting on the cable connection. Often, jumper cables are provided with a terminal end designed as a termination lug, which is placed on a bolt or rod of the other terminal end of the connection. By screwing a nut on the bolt, the cable connection is secured. Uncontrolled rotation of the termination lug may lead to a loosening of the nut and an interruption of the electrical connection.
- In order to avoid undesired interruptions of the electrical connection due to uncontrolled rotations of the cable terminal end, the termination lug of the cables can be designed with flat parts that may sit on corresponding flat sides of the bolt at the other terminal end. The corresponding flats avoid rotation of the lug around the bolt.
- This is insofar problematic as the termination lug of the cable needs to be specifically designed with flat parts. Further, the direction of the flat parts of the lug defines the angular arrangement of the termination lug with respect to the other terminal end. So, it is necessary to have available many different kinds of lugs and kinds of jumper cables in order to be able to establish the electrical connection of a cable at a specific angle of rotation between the termination lug of the cable and the other terminal end of the electrical connection to meet specific projection requirements of the cable.
- It is thus the objective of the present invention to provide a securing component, a terminal end, a kit as well as an electrical connection assembly that allows to establish an electrical connection of a cable to be established at various angles of rotation between the two terminals of the electrical connection in a simple yet cost-efficient manner.
- The securing component of the present invention solves this problem by comprising a fixation member capable of securing a terminal end of the connection at various angles of rotation in relation to the securing component. The terminal end of the initially mentioned type according to the present invention solves the above technical problem by a terminal body comprising a mounting organ for securing the terminal body at a desired angle of rotation in relation to a first terminal end of the connection, wherein the mounting organ is spaced apart from the coupling element. By means of such mounting organ, the terminal body of the inventive terminal end can be connected at various different angles of rotation. Since the mounting organ is spaced apart from the coupling element, there is no constraint to be able to mount the terminal end only at one specific angle of rotation. Using the terminal end according to the present invention thus allows to secure the terminal body at various different angles of rotation in relation to the first terminal end of the connection.
- The kit of the initially mentioned type as well as the electrical connection assembly of the originally mentioned type solve the above-mentioned problem by comprising a securing component according to the present invention. In the electrical connection assembly according to the present invention, the coupling of the securing component is linked with the first terminal in a rotationally fixed manner, and the fixation member secures the second terminal end at a selected angle of rotation, i.e. selected from the various predetermined angles of rotation, in relation to the first terminal end.
- The inventive securing component can be linked with the first terminal end of the connection in a rotationally fixed manner via its coupling. "Rotationally fixed"/"rotationally fixed manner" in the sense of the present application means that the two link components, such as the securing component and the first terminal, cannot be rotated with respect to each other around a rotational axis (also referred to as axis of rotation). The rotational axis is the axis around which a cable, such as a jumper cable, tends to rotate. In a common electrical connection comprising a cable terminal end composed of a termination lug end mounted on a first terminal end comprising a termination bolt or rod being the seat for the lug, the longitudinal axis of the rod corresponds to the axis of rotation.
- The fixation members of the securing component allow to secure the other terminal end of the connection, for example the cable terminal end, such as a termination lug, at various predetermined angles of rotation in relation to the securing component. This way, it is not necessary to have different kinds of lugs and kinds of jumper cables in order to arrange the cable at a defined angle of rotation. Rather, one kind of cable is secured with its terminal end a selected (or desired) one of the various possible different angles of rotation by means of the fixation member. This way, different kinds of lugs and jumper cables can be avoided, leading to a reduction in material required, reduction of development time, simplifying manufacturing and installation processes and hence cost reduction.
- The "angle of rotation" according to the present application is a distinct angle, with respect to the rotational axis, at which the two terminal ends of the electrical connection are electrically and mechanically coupled in a rotationally fixed manner with each other. The angle of rotation might be compared to the position of the pointer on the clock, the termination rod being the centre of the clock. "Various angles of rotation" means that the terminal end of the connection may be secured on the fixation member at a minimum of two, preferably three or more, different angles of rotation. The different predetermined angles of rotation may lie in the range of 0°to 360°, for example 0° to 180°, or any arbitrary interval therebetween.
- The following description of the invention may, independently of one another, lead to further improvements of the securing component, the terminal end, the kit as well as the electrical connection assembly of the present invention. If not otherwise indicated, the various features may be combined arbitrarily as required for a specific application of the invention.
- According to a first embodiment, the securing component of the present invention may be a washer comprising the coupling and the fixation member. A washed can be easily mass-produced, for example from stamping from a sheet of metal, and is easily designed as required and provided with the coupling and the fixation member.
- In another embodiment, the securing component of the present invention has a coupling comprising a fitting profile shaped to interlock with the first terminal end rotationally fixed. Such a fitting profile, for example a specific contour or a pin, latch, catch, protrusion or recess, is easy to manufacture and design corresponding to a complementary counterpart on the first terminal end of the electrical connection. In one embodiment, the fitting profile may be designed as a profiled hole, which is easy to manufacture yet capable of efficiently interlocking with the first terminal end rotationally fixed. In one embodiment, the profiled hole of the coupling from the securing component may be a through-hole with a circular border, whose circularity is disrupted by flat sections, which can be coupled with the termination flats of a termination rod being the first terminal end.
- In a further embodiment, the fixation member of the securing component may comprise an array of fixation elements arranged in a predefined pattern. In said pattern, each fixation element corresponds to a specific angle of rotation. An easy way to achieve this is to arrange the different fixation elements of the array in a curved pattern, for example a curve pattern corresponding to a circular path having the axis of rotation in its centre, wherein the distance from the centre to each fixation element on the circular path is always the same.
- In another embodiment, the distance between adjacent fixation elements in the array of the fixation elements may be constant. This allows for a regular series of predetermined angles of rotation provided by the fixation members. For example, the different angles of rotation may be equidistantly spaced apart from each other, for example by 5°, 10°, 15°, or an arbitrary degree between 1° and 120°.
- In a further embodiment, at least one of the fixation elements in the array is formed as a fixation recess and/or a fixation protrusion. The recess may be formed for example as a hole, such as a through-hole, and the fixation protrusion may be designed as a pin or pall projecting out of the body of the securing component. In one exemplary embodiment, a series of holes is arranged in a predetermined pattern.
- The securing component of the present invention may further comprise a guiding structure for routing the second terminal end along the various predetermined angles of rotation. Such guiding structure, for example a curved guide rail or a curved guide groove that may be concentrically arranged around the axis of rotation, facilitates selecting one of the various predetermined angles of rotation.
- In a further embodiment, the fixation member is arranged adjacent to or is arranged on the guiding structure. This proximity/conformity of the fixation member and the guiding structure allows for a very compact design of the securing component, while at the same time having the advantage of easily reaching the selected angle of rotation from the various predetermined angles of rotation at the fixation member. In one embodiment, the securing component may comprise a guide rail with various protrusions and/or recesses in the rail.
- In one embodiment of the terminal end according to the present invention, the mounting organ comprises an anchorage recess or anchorage protrusion.
- According to a further embodiment, the terminal end of the present invention may comprise a lead structure for moving the mounting organ to the desired angle of rotation. This facilitates the arrangement of the terminal end at the desired angle of rotation with respect to the first terminal end, such as a terminal rod. The lead structure may comprise a lead groove and/or a lead rail. The lead structure of the terminal end may be complementary to the guiding structure of the securing component. This way, the guiding structure of the securing component and the lead structure of the terminal end may constitute a guidance defining the rotational movement of the terminal end with respect to the securing component.
- In an embodiment of the kit or the electrical connection assembly of the present invention, the terminal end may be a terminal end according to the present invention. In these embodiments, the mounting organ of the terminal end may be complementary to the fixation member, preferably the fixation elements from the array of fixation elements. For example, the terminal end may be provided with an anchorage recess as a mounting organ and the securing component may comprise an array of fixation protrusions which may be inserted into the anchorage recess for a rotationally fixed connection at a specific angle of rotation. Alternatively, the mounting organ may comprise an anchorage protrusion and the fixation member of the securing component may comprise an array of fixation recesses arranged in a defined pattern, into which the anchorage protrusion may be inserted.
- The kit of the present invention may further comprise a fastener for locking the fixation member of the securing component and the mounting organ of the second terminal end at a predetermined position with respect to each other. One easy and efficient exemplary design is to use a terminal end having an anchorage recess hole and a securing component with a fixation member comprising an array of fixation recess holes, which may be locked with each other by means of a fastener, such as a pin or bolt. If the anchorage recess and/or the fixation recess is a threaded hole, preferably a threaded through-hole, a screw bolt can easily and efficiently lock the fixation member of the securing component and the mounting organ of the terminal end at a predetermined position with respect to each other.
- Correspondingly, the electrical connection assembly according to the present invention may have a fastener locking the fixation member of the securing component and the mounting organ of the terminal end of the selected position with respect to each other.
- In the following, the invention is exemplarily described with reference to embodiments using the accompanying drawings. In light of the above-described improvements, it is clear that the various features of the embodiments are shown in their combination only for explanatory purposes. For a specific application, individual features may be omitted and/or may be added if their associated advantage as laid out above is needed.
- In the drawings:
- Fig. 1:
- shows a schematic perspective view of a jumper cable interconnecting to termination by means of an electrical connection assembly of the present invention;
- Fig. 2:
- shows a schematic perspective view of a first embodiment of the securing component for a rotationally fixed electrical connection of a cable;
- Fig. 3:
- shows the securing component of
Fig. 2 linked with a first terminal end of the electrical connection in a rotationally fixed manner; - Figs. 4a and 4b:
- show schematic perspective views of a first embodiment of a terminal end for a rotationally fixed electrical connection of a cable according to the present invention;
- Figs. 5a and 5b:
- show an electrical connection assembly for a rotationally fixed electrical connection of a cable in an embodiment comprising the securing component of
Fig. 2 as well as the terminal end ofFigs. 4a and 4b ; - Fig. 6:
- shows a kit of the present invention;
- Fig. 7:
- show schematic perspective views of a second embodiment of a terminal end for a rotationally fixed electrical connection of a cable according to the present invention;
- Fig. 8:
- shows a schematic perspective view of a second embodiment of the securing component for a rotationally fixed electrical connection of a cable; and
- Fig. 9:
- shows a schematic perspective view of a third embodiment of the securing component for a rotationally fixed electrical connection of a cable.
- The present invention improves the electrical and mechanical connection of a
cable 1, such as a jumper cable used as part of a high voltage roof-line on a high speed trains.Such cables 1 interconnect theterminations 2 on adjacent units, such as wagons. Jumper cables need to be flexible and must be resistant to the rigors of the high voltage rail environment.Fig. 1 shows an exemplary representation ofsuch cable 1 interconnecting twoterminations 2.Figs. 5a and 5b show in detail how thecable 1 is connected by means of a rotationally fixedelectrical connection 3 with each of theterminations 2. - The
cable 1 in the shown embodiment is a coiled jumper cable, providing high flexibility. At each end of thecable 1, aterminal end 4 is provided. Theterminal end 4 is designed as atermination lug 5 in the shown embodiment. Theterminal end 4 is shown in detail inFigs. 4a and 4b and will be described in more detail below. - In the
electrical connection 3, theterminal end 4 of thecable 1 is electrically connected with a firstterminal end 6 of theterminations 2. The firstterminal end 6 of theterminations 2 is designed as atermination rod 7. Said termination rod comprises acoupling section 8 having a substantially circular cross-section, however with twoflats 9. The twoflats 9 are arranged opposite to the coupling section with respect to the longitudinal axis L of thetermination rod 7. This cross-section of thetermination rod 7 comprising thecoupling section 8 withflats 9 achieves the linkage of the securingcomponent 10 of the present invention on the firstterminal end 6 in a rotationally fixed manner, as for example depicted inFig. 3 , the detail of which will be described below. - For electrically connecting the
terminal end 4 of thecable 1 with the firstterminal end 6 of thetermination 2, theterminal end 4 is designed in the shown embodiment as atermination lug 5 having aterminal body 11 with acoupling element 12 designed as a circular through-hole 13, as can best be seen inFigs. 4a and 4b . For electrically connecting thetermination lug 5 and thetermination rod 7, thedistal section 14 of thetermination rod 7 is pushed through the coupling through-hole 13 of thetermination lug 5 until it abuts thefront face 15 of thecoupling section 8 from thetermination rod 7, thereby establishing the electrical connection between thetermination rod 7 and thetermination lug 5. In order to mechanically secure thetermination lug 5 and thetermination rod 7 inelectrical connection 3, anut 16 is screwed on thedistal section 14 of thetermination rod 7. - An
electrical connection 3 of acable 1, such as a high voltage jumper cable as depicted inFig. 1 , has to sustain the rigors of the high voltage rail environment. One problem of suchelectrical connection 3 is that uncontrolled rotations of thetermination lug 5 around a rotation axis R, which coincides with the longitudinal direction L of thetermination rod 7, are to be avoided because such uncontrolled rotations may lead to the loosening of thenut 16 and the interruption of theelectrical connection 3. - With reference to
Figs. 2 to 5b , it will be now be described how exemplary embodiments of the securingcomponent 10, theterminal end 4 as well as theelectrical connection assembly 17 according to the present invention establish a rotationally fixedelectrical connection 3 of thecable 1. - In the following, a first embodiment of the securing
component 10 for a rotationally fixedconnection 3 of thecable 1 is described. The securingcomponent 10, as can be best seen inFig. 2 , is designed as a securingwasher 18 comprising a flat, substantially disc-shapedbody 19. Thebody 19 comprises a profiledhole 20 in its center, which constitutes thecoupling 21 of the securingcomponent 10 of the present invention. Thecoupling 21 is designed to be linked with the firstterminal end 6, in the shown embodiments thetermination rod 7 of thetermination 2. In order to link thecoupling 21 of the securingcomponent 10 in a rotationally fixed manner with thetermination rod 7, the profiledhole 20, which is through-hole, has a fitting profile 22 defined by its border. The bordering fitting profile 22 is substantially circular with twoflat border sections 23. Theflat border sections 23 are symmetrically designed and run substantially parallel to each other on opposite sides of the profiledhole 20. Thecoupling 21, designed as a profiledhole 20 having a fitting profile 22 withflat border sections 23, is thus complementary to the cross-section of thecoupling section 8 at thetermination rod 7. The securingcomponent 10 can hence be linked with the firstterminal end 6 by placing thecoupling section 8 of thetermination rod 7 inside the profiledhole 20 of thecoupling 21 from the securingcomponent 10 in such a way that theflat border sections 23 of the profiledhole 20 are aligned with and abut with theflats 9 of thecoupling section 8 of thetermination rod 7. By such an alignment, the securingcomponent 10 is linked in a rotationally fixed manner, i.e. in a way that it cannot be rotated around the rotational axis R, on the firstterminal end 6 of thetermination 2. - The securing
component 10 shown inFig. 2 is linked in a rotationally fixed manner with the firstterminal end 6 of thetermination 2, which is shown in detail inFig. 3 . - The securing
component 10 further comprises afixation member 24 that is capable of securing theterminal end 4 of theelectrical connection 3 at various angles of rotation α in relation to the securing component. Thefixation member 24 of the exemplary embodiment shown in the figures comprises an array offixation elements fixation elements 25 to 25d is arranged in a curve pattern following the circular shape of thebody 19 from the securingwasher 18. As can be seen inFig. 2 , the array offixation elements 25 to 25d is arranged adjacent to one of theflat border sections 23 of the fitting profile 22. - Each of the
fixation elements 25 to 25d corresponds to a specific angle of rotation α at which theterminal end 4 can be secured in relation to the securingcomponent 10. In the shown embodiment, theindividual fixation elements 25 to 25d are at constant distance between adjacent fixation elements. The difference between the specific angles of rotation α, corresponding to adjacent fixation elements, corresponds to about 15° in the shown embodiment. If defining the angle of rotation α of thefixation element 25 to be 0°, the array offixation elements 25 to 25d of thefixation member 24 in the shown embodiment allows securing of theterminal end 4 in relation to the securingcomponent 10 at the following angles of rotation: α = 0° (fixation element 25), αa=15° (fixation element 25a), αb= 30° (fixation element 25b), αc= 45° (fixation element 25c) and αd=60° (fixation element 25d). - In the shown embodiment, the
fixation elements 25 to 25d are all formed as fixation recesses 26 to 26d. These fixation recesses 26 to 26d are designed as through-holes extending through thebody 19 of the securingcomponent 10. Each of the through-holes forming the fixation recesses 26 to 26d is designed with an internal thread, the purpose of which will be described in more detail below. - The securing
component 10 of the first embodiment further comprises a guidingstructure 27. By means of this guidingstructure 27, the securingcomponent 10 may route theterminal end 4 along the various different angles of rotation, at which theterminal end 4 may be secured in relation to the securingcomponent 10 using thefixation member 24. In the shown embodiment, the guidingstructure 27 is designed as aguide rail 31 projecting from thefront side 28 of the disc-shapedbody 19 of the securingwasher 18. Theguide rail 31 stands up from thefront side 28 close to theouter edge 29 of the disc-shapedbody 19. One face of the guidingstructure 29 is forming aslide face 30, which serves as a guidance for routing theterminal end 4 along thefixation member 24. Theguide rail 31 is formed in that area of the securingcomponent 10 where thefixation member 24 with its array offixation elements 25 to 25d is designed. In the shown embodiment, the fixation recesses 26 to 26d are holes extending through theguide rail 31 in a direction parallel to the rotational axis R. This way, thefixation member 24 is arranged on the guidingstructure 27, which facilitates to direct theterminal end 4 to aspecific fixation element 25 to 25d from their array of fixation members, in order to select a specific angle of rotation α, under which theterminal end 4 is to be secured in relation to the securingcomponent 10. - A further advantage of a
rail 31 is that the thickness of thebody 19 of the securingcomponent 10 is increased. This increase makes it possible to make thefixation elements 25 to 25d, in particular fixation recesses 26 to 26d, longer, which adds to the stability of the securingcomponent 10 as well as theelectrical connection assembly 17. - In a further embodiment, the fixation recesses 26 to 26d may be arranged on areas of the
body 19 of the securingcomponent 10, having an improved thickness by adding more material on thewasher 18, regardless of the guidingstructure 27. That is, the securingcomponent 10 may comprise, in certain embodiments, fixation recesses 26 to 26d in areas where thebody 19 has an increased thickness, while the securingcomponent 10 may or may not comprise a guidingstructure 27. - As already explained above,
Fig. 3 shows the securingcomponent 10 ofFig. 2 linked with thecoupling section 8 of thetermination rod 7 of the firstterminal end 6 from thetermination 2. For clarity reasons, not all of the reference numerals allocated to the individual features of the securingcomponent 10 shown inFig. 2 are repeated inFig. 3 . - In the following, a first exemplary embodiment of the
terminal end 4 for a rotationally fixedelectrical connection 2 of acable 1 according to the present invention is described. One embodiment of suchterminal end 4 is schematically depicted inFigs. 4a and 4b . Theterminal end 4 is designed as aterminal lug 5 having atubular section 32 that is crimped to the leads of thecable 1. Theterminal lug 5 ends in a flat, plate-like connection section 33, which comprises thecoupling element 12 of theterminal end 4 that is designed as the coupling through-hole 13 extending from theconnection face 34 to theconnection section 33. Saidconnection face 34 is brought into electrical contact with the firstterminal end 6 of thetermination 2. Thefastening face 35 of theconnection section 33 that is opposite to theconnection face 33 is the side where thenut 16 presses on theterminal lug 5 to keep theelectrical connection 3 mechanically and electrically connected. The coupling through-hole 13 has acircular border 36. The circular shape of the coupling through-hole 13 allows to rotate thetermination lug 5, if placed on thedistal section 14 of thetermination rod 7 such that said distal section extends through the coupling through-hole 13. When using theterminal end 4 of the present invention, it is not necessary to specifically design the through-hole 13 of thetermination lug 5 in order to achieve a coupling with the firstterminal end 6 of thetermination 2 in a rotationally fixed manner. - In order to secure the
terminal end 4 at a specific angle of rotation α in relation to the firstterminal end 6 of theconnection 2, theterminal end 4 of the present invention comprises a mountingorgan 37. The mountingorgan 37 is spaced apart from thecoupling element 12. In the first exemplary embodiment shownFigs. 4a and 4b , the mountingorgan 37 comprises ananchorage recess 38. Thisanchorage recess 38 is designed as ananchorage hole 39 that also extends from thefastening face 35 to theconnection face 34, like the coupling through-hole 13. Theanchorage hole 39 is, like the fixation recesses 26 to 26d of the securingcomponent 10, provided with an inner thread. Theanchorage organ 37 is arranged close to thetip 40 of thetermination lug 5, saidtip 40 being opposite to thetubular section 32. - When the
terminal end 4 is seated on thedistal section 14 of thetermination rod 6, theterminal end 4 can be rotated around the rotational axis R, which coincides with the longitudinal direction L of thetermination rod 7. If rotated this way, the mountingorgan 37, which is spaced apart from thecoupling element 12 of theterminal end 4, may be arranged at various angles of rotation α, αa, αb, αc, αd. in relation to the firstterminal end 6. This way, the sameterminal end 4 can be secured to the firstterminal end 6 at various different angles of rotation α, αa, αb, αc, αd. using the mountingorgan 37 for the mechanical fixation, rather than the coupling through-hole 13, which is usually specifically shaped in the anti-rotational terminal lugs known from the prior art. - In the shown embodiment, the
terminal end 4 further comprises alead structure 41 for moving the mountingorgan 37 to the various different possible angles of rotation α, αa, αb, αc, αd. Thelead structure 41 comprises alead groove 42. Thelead groove 42 of the exemplary embodiment shown inFigs. 4a and 4b is designed as a groove shaped at thetip 40 of theconnection section 32. Thegroove 42 is designed on theconnection face 34 and runs through the whole width of theconnection section 33. Thelead groove 42 opens in the directions facing to theconnection face 33, towards thetip 40, as well as bothlateral sides 43, 43' defining the width of theconnection section 32. - The
lead groove 42 encompasses aslide surface 44 at the side opposite thetip 40 or facing towards thefurther section 32, i.e. where the thickness of theconnection section 33 is reduced. This sliding surface is complementary to theslide face 30 of the guidingstructure 27 of the securingcomponent 10. In the assembled state of theelectrical connection assembly 17, shown inFigs. 5a and 5b , the slidingsurface 44 of thelead structure 41 rests on theslide face 30 of the guidingstructure 27. The curvature of both theslide surface 44 and theslide face 30 are similar, both having a circular curve that corresponds to a circle drawn with a radius measuring from the centre of the coupling through hole, said centre being on the rotational axis R, and theslide surface 44, or the centre of the profiledhole 20 of the securingcomponent 10, which likewise lies on the rotational axis R, and theslide face 33. Thecomplementary slide face 30 of the securingcomponent 10 andslide surface 44 of theterminal end 4 thus form aguidance organ 37 of theterminal end 4 along the array offixation elements 25 to 25d of thefixation member 24 that are arranged on theguide structure 27 of the securingcomponent 10. This facilitates directing the mountingorgan 37 from theterminal end 4 to onespecific fixation element 25 to 25d, corresponding to the desired angle of rotation α, αa, αb, αc, αd. of the array, at which theterminal end 4 is to be secured in a rotationally fixed manner on the securingcomponent 10 and thefirst terminal 6. - One exemplary fixation under a specific angle of rotation α is depicted in
Figs. 5a and 5b , showing anelectrical connection assembly 17 for rotationally fixing anelectrical connection 3 of acable 1. - In
Figs. 5a and 5b , an exemplary embodiment of anelectrical connection assembly 17 according to the present invention is shown. The shown embodiment comprises a firstterminal end 6 of theconnection 3 and aterminal end 4 of thecable 1 that is electrically connected with thefirst terminal 6. Theterminal end 4 is atermination lug 5 as depicted inFigs. 4a and 4b . Theelectrical connection assembly 17 further comprises a securingcomponent 10 according to the present invention. In the shown embodiment, the securingcomponent 10 ofFigs. 2 and3 is used. In theelectrical connection assembly 17, thecoupling 21 of the securingcomponent 10 is linked with the firstterminal end 6 in a rotationally fixed manner as depicted inFig. 3 . Further, thefixation member 24 of the securingcomponent 10 secures theterminal end 4 at a selected angle of rotation α in relation to the securingcomponent 10. Theterminal end 4 is secured at a selected angle of rotation α in that thetermination lug 5 is placed on top of the securingcomponent 10 already linked to the firstterminal end 6 by inserting thedistal section 14 of thetermination rod 7 through the coupling through-hole 13 of thetermination lug 5 in a way that theslide face 30 and theslide surface 44 are arranged side-by-side. This arrangement provides aguidance terminal lug 5 around the rotational axis R. When rotating thetermination lug 5 around the rotational axis R, the mountingorgan 37 thereof runs along the array offixation elements 25 to 25d and a specific fixation element can be selected which corresponds to the desired angle of rotation α, at which theterminal end 4 is to be connected rotationally fixed on the securingcomponent 10 and the firstterminal end 6. Once theanchorage recess 38 of thetermination lug 5 aligns with the desiredfixation recess fastener 45 locks thefixation member 24 of the securingcomponent 10 and the mountingorgan 37 of theterminal end 4 at the selected position with respect to each other. In the shown embodiment, this is achieved by afastener bolt 46 that may be screwed into the threads of theanchorage recess 38 and the selectedfixation recess 26, as can be best seen inFig. 5b . This way, theterminal end 4 is rotatably fixed on the securingcomponent 10 and, since the securingcomponent 10 is linked with the firstterminal end 6 in a rotationally fixed manner, the terminal end is also mounted rotationally fixed on the firstterminal end 6. - In
Fig. 6 , one embodiment of akit 47 for rotationally fixing theelectrical connection 3 of acable 1, such as a high voltage jumper cable is shown. The kit comprises theterminal end 4 as shown inFigs. 4a and 4b , the securingcomponent 10 as shown inFig. 2 as well as afastener 45 for locking thefixation member 20 of the securingcomponent 10 and the mountingorgan 37 of theterminal end 4 at the predetermined position with respect to each other. - Alternative embodiments of the
terminal end 4 as well as the securingcomponent 10 according to the present invention are show inFigs. 7 and8 . The further embodiments principally correspond to the embodiments shown inFigs. 1 ,4a and 4b . In the following, only the differences of the second embodiment with respect to the previously described exemplary embodiments will thus be mentioned. - The
terminal end 4 of the second embodiment as shown inFig. 7 principally corresponds to the one shown inFigs. 4a and 4b . In the second embodiment, however, the mountingorgan 37 is designed as ananchorage protrusion 38a rather than as ananchorage recess 38. Theanchorage protrusion 38a is a pin that projects from the surface of thelead groove 42 that faces in the direction of theconnection face 34. Using aterminal end 4 according to the second embodiment, theanchorage protrusion 38a can be inserted into the fixation recesses 26, 26a, 26b, 26c, 26d from thefixation member 24 that corresponds to the desired angle of rotation α. This way, aseparate fastener 45 is not necessary. - The securing
component 10 according to the second embodiment shown inFig. 8 principally corresponds to the one of the first embodiments shown inFig. 1 . Thebody 19 of the securingcomponent 10, which is also designed as a securingwasher 18, is identical. Thecoupling 21 comprising the profiledhole 20 is also identical in the first and second embodiments shown inFigs. 1 and8 , respectively. - The securing
component 10 according to the second embodiment differs from the one of the first embodiment in that it does not comprise a guidingstructure 27. Furthermore, instead of fixation recesses 26 to 26d, thefixation elements fixation protrusions front side 28 of thebody 19. In the array offixation elements Fig. 8 , theadjacent fixation protrusions adjacent fixation protrusions fixation protrusions protrusion 48a) and αb = 120° (forprotrusion 48b), - The securing
component 10 according to the third embodiment shown inFig. 9 principally corresponds to the one of the first embodiment shown inFig. 1 . Thebody 19 of the securingcomponent 10, which is also designed as a securingwasher 18, is identical and thecoupling 21 comprising a profiledhole 20 is also identical in the first, second and third embodiments, shown inFigs. 1 ,8 and 9 , respectively. - The securing
component 10 according to the third embodiment, like the one of the first embodiment shown inFig. 1 , comprises an array offixation elements 25 to 25j. The fixation elements are designed as fixation recesses 26 to 26j in the third embodiment of the securingcomponent 10 as well. Likewise, the fixation recesses to 26 to 26j are designed in areas of thebody 19 of the securingcomponent 10, having an improved thickness, so the holes of therecesses 26 to 26j can be made longer providing an improved stability of the securingcomponent 10 as well as anelectrical connection assembly 17 comprising saidcomponent 10. - The only difference between the securing
component 10 of the third embodiment shown inFig. 9 and the one of the first embodiment shown inFig. 1 is that the array offixation elements 25 to 25j in the third embodiment comprises more elements, namely a total of 11fixation elements 25 to 25j, compared to the fivefixation elements 25 to 25d of the first embodiment. The array offixation elements 25 to 25j according to the securingcomponent 10 of the third embodiment thus spans more of the circumference of the disc-shapedbody 19, allowing to secure theterminal end 4 at more possible angles of rotation α in relation to the securingcomponent 10. - In the third embodiment, shown in
Fig. 9 , theindividual fixation elements 25 to 25j are at constant distance between adjacent fixation elements. The difference between the specific angles of rotation α, corresponding to adjacent fixation elements, corresponds to about 15° in the third embodiment. If defining the angle of rotation α of thefixation element 25 to be 0°, the array offixation elements 25 to 25j of thefixation member 24 in the third embodiment allows securing of theterminal end 4 in relation to the securingcomponent 10 at the following angles of rotation: α = 0° (fixation element 25), αa = 15° (fixation element 25a), αb = 30° (fixation element 25b), αc = 45° (fixation element 25c), αd = 60° (fixation element 25d), αe = 75° (fixation element 25e), αf = 90° (fixation element 25f), αg = 105° (fixation element 25g), αh = 120° (fixation element 25h), αi = 135° (fixation element 25i) and αj = 150° (fixation element 25j). - The securing
component 10 of the third embodiment, even though not essential, further comprises a guidingstructure 27. By means of this guidingstructure 27, the securingcomponent 10 may route theterminal end 4 along the various different angles of rotation, at which theterminal end 4 may be secured in relation to the securingcomponent 10 using thefixation member 24. In the third embodiment, the guidingstructure 27 is designed as aguide rail 31 projecting from thefront side 28 of the disc-shapedbody 19 of the securingwasher 18. Theguide rail 31 stands up from thefront side 28 close to theouter edge 29 of the disc-shapedbody 19. One face of the guidingstructure 29 is forming aslide face 30, which serves as a guidance for routing theterminal end 4 along thefixation member 24. Theguide rail 31 is formed in that area of the securingcomponent 10 where thefixation member 24 with its array offixation elements 25 to 25j is designed. In the shown embodiment, the fixation recesses 26 to 26j are holes extending through theguide rail 31 in a direction parallel to the rotational axis R. This way, thefixation member 24 is arranged on the guidingstructure 27, which facilitates to direct theterminal end 4 to aspecific fixation element 25 to 25j from their array of fixation members, in order to select a specific angle of rotation α, under which theterminal end 4 is to be secured in relation to the securingcomponent 10. -
- 1
- Cable
- 2
- Termination
- 3
- Electrical connection
- 4
- Terminal end
- 5
- Termination lug
- 6
- First terminal end
- 7
- Termination rod
- 8
- Coupling section
- 9
- Flats
- 10
- Securing component
- 11
- Terminal body
- 12
- Coupling element
- 13
- Coupling through-hole
- 14
- Distal section
- 15
- Front face
- 16
- Nut
- 17
- Electrical connection assembly
- 18
- Securing washer
- 19
- Body
- 20
- Profiled hole
- 21
- Coupling
- 22
- Fitting profile
- 23
- Flat border sections
- 24
- Fixation member
- 25, 25a, 25b, 25c, 25d,
- 25e, 25f, 25g, 25h, 25i, 25j
- Fixation elements
- 26, 26a, 26b, 26c, 26d,
- 26e, 26f, 26g, 26h,26i, 26j
- Fixation recesses
- 27
- Guiding structure
- 28
- Front side
- 29
- Outer edge
- 30
- Slide face
- 31
- Guide rail
- 32
- Tubular section
- 33
- Connection section
- 34
- Connection face
- 35
- Fastening face
- 36
- Border
- 37
- Mounting organ
- 38
- Anchorage recess
- 38a
- Anchorage protrusion
- 39
- Anchorage hole
- 40
- Tip
- 41
- Lead structure
- 42
- Lead groove
- 43, 43'
- Lateral sides
- 44
- Slide surface
- 45
- Fastener
- 46
- Fastening bolt
- 47
- Kit
- 48, 48a, 48b
- Fixation protrusion
- L
- Longitudinal direction
- R
- Rotational axis
- α, αa, αb, αc, αd, α e, αf, αg, αh αi, αj.
- Angle of rotation
Claims (15)
- Securing component (10) for a rotationally fixed electrical connection (3) of a cable (1), such as a high voltage jumper cable, comprising a coupling (21) designed to be linked with a first terminal end (6) of the connection (3) in a rotationally fixed manner, and a fixation member (24) capable of securing a terminal end (4) of the connection (3) at various angles of rotation (α) in relation to the securing component (10).
- Securing component (10) according to claim 1, wherein the coupling (21) comprises a fitting profile (22) shaped to interlock with the first terminal (4) rotationally fixed.
- Securing component (10) according to claim 2, wherein the fitting profile (22) is designed as a profiled hole (20).
- Securing component (10) according to any one of claims 1 to 3, wherein the fixation member (24) comprises an array of fixation elements (25, 25a, 25b, 25c, 25d, 25e, 25f, 25g, 25h, 25i, 25j) arranged in a predefined pattern.
- Securing component (10) according to claim 4, wherein at least one of the fixation elements (25, 25a, 25b, 25c, 25d, 25e, 25f, 25g, 25h, 25i, 25j) in the array is formed as a fixation recess (26, 26a, 26b, 26c, 26d, 26e, 26f, 26g, 26h,26i, 26j) or a fixation protrusion (48, 48a, 48b).
- Securing component (10) according to any one of claims 1 to 5, further comprising a guiding structure (27) for routing the terminal end (4) along the various angles of rotation (α).
- Securing component (10) according to claim 6, wherein the fixation member (24) is arranged adjacent to or arranged on the guiding structure (27).
- Terminal end (4) for a rotationally fixed electrical connection (3) of a cable (1), such as a high voltage jumper cable, having a terminal body (11) comprising a coupling element (12) designed to be electrically and mechanically coupled with a first terminal end (6) of the connection (3) and a mounting organ (37) for securing the terminal body (11) at a desired angle of rotation (α) in relation to the first terminal end (6) of the connection (3), wherein the mounting organ (37) is spaced apart from the coupling element (12).
- Terminal end (4) according to claim 8, wherein the mounting organ (37) comprises an anchorage recess (38) and/or an anchorage protrusion (38a).
- Terminal end (4) according to claim 8 or 9, further comprising a lead structure (41) for guiding the mounting organ (37) to the desired angle of rotation (α).
- Kit (47) for a rotationally fixed electrical connection (3) of a cable (1), such as a high voltage jumper cable, comprising a terminal end (4) of the connection (3) designed to be electrically connected with a first terminal end (6) as well as a securing component (10) according to any one of claims 1 to 7.
- Kit (47) of claim 11, further comprising a fastener (45) for locking the fixation member 24 of the securing component (10) and the mounting organ (37) of the terminal end (4) at a specific angle of rotation (α) with respect to each other.
- Electrical connection assembly (17) for a rotationally fixed electrical connection (3) of a cable (1), such as a high voltage jumper cable, comprising a first terminal (6) of the connection (3), a terminal end (4) of the connection (3) that is electrically connected to the first terminal end (6), and a securing component (10) according to any one of claims 1 to 7, wherein the coupling (21) of the securing component (10) is linked with the first terminal end (6) in a rotationally fixed manner, and the fixation member (24) secures the terminal end (4) at a selected angle of rotation (α) in relation to the first terminal (6).
- Kit (47) of claim 11 or 12 and electrical connection assembly (17) of claim 13, wherein the terminal end (4) is a terminal end (4) according to any one of claims 8 to 10.
- Electrical connection assembly (17) according to claim 14, wherein a fastener (45) locks the fixation member (24) of the securing component (10) and the mounting organ (37) of the terminal end (4) at the selected angle of rotation (α) with respect to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13180904.8A EP2840657B1 (en) | 2013-08-19 | 2013-08-19 | Securing component, terminal end, kit and electrical connection assembly for a rotationally fixed electrical connection of a cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13180904.8A EP2840657B1 (en) | 2013-08-19 | 2013-08-19 | Securing component, terminal end, kit and electrical connection assembly for a rotationally fixed electrical connection of a cable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2840657A1 true EP2840657A1 (en) | 2015-02-25 |
EP2840657B1 EP2840657B1 (en) | 2019-11-06 |
Family
ID=48985685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13180904.8A Active EP2840657B1 (en) | 2013-08-19 | 2013-08-19 | Securing component, terminal end, kit and electrical connection assembly for a rotationally fixed electrical connection of a cable |
Country Status (1)
Country | Link |
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EP (1) | EP2840657B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3836307A1 (en) * | 2019-12-10 | 2021-06-16 | Tyco Electronics-Simel | Cable lug for a connector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1133007A1 (en) * | 2000-03-09 | 2001-09-12 | Sumitomo Wiring Systems, Ltd. | A construction and a terminal cap for preventing an erroneous connection |
WO2004109863A2 (en) * | 2003-05-28 | 2004-12-16 | Valeo Equipements Electriques Moteur | Arrangement for securing a bond plug to a power outlet terminal secured to the rectifier device of a rotating electrical machine |
US20110053434A1 (en) * | 2008-02-13 | 2011-03-03 | Hans-Peter Seng | Retaining device for cable lugs |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4926019B2 (en) * | 2007-12-07 | 2012-05-09 | 本田技研工業株式会社 | Connection structure for vehicle cables |
-
2013
- 2013-08-19 EP EP13180904.8A patent/EP2840657B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1133007A1 (en) * | 2000-03-09 | 2001-09-12 | Sumitomo Wiring Systems, Ltd. | A construction and a terminal cap for preventing an erroneous connection |
WO2004109863A2 (en) * | 2003-05-28 | 2004-12-16 | Valeo Equipements Electriques Moteur | Arrangement for securing a bond plug to a power outlet terminal secured to the rectifier device of a rotating electrical machine |
US20110053434A1 (en) * | 2008-02-13 | 2011-03-03 | Hans-Peter Seng | Retaining device for cable lugs |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3836307A1 (en) * | 2019-12-10 | 2021-06-16 | Tyco Electronics-Simel | Cable lug for a connector |
WO2021116032A1 (en) * | 2019-12-10 | 2021-06-17 | Tyco Electronics Simel | Cable lug for a connector |
Also Published As
Publication number | Publication date |
---|---|
EP2840657B1 (en) | 2019-11-06 |
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