EP3457496B1 - Electrical connector - Google Patents
Electrical connector Download PDFInfo
- Publication number
- EP3457496B1 EP3457496B1 EP17306193.8A EP17306193A EP3457496B1 EP 3457496 B1 EP3457496 B1 EP 3457496B1 EP 17306193 A EP17306193 A EP 17306193A EP 3457496 B1 EP3457496 B1 EP 3457496B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting part
- cylinder
- hole
- screw
- ring shaped
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 43
- 230000013011 mating Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
-
- 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
- H01R13/60—Means for supporting coupling part when not engaged
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
Definitions
- the present invention relates to electrical connectors for connecting a first conductor to a second conductor.
- Such connectors as known from US 2017/0054250 A1 and US 5,035,660 , are widely used for joining two conductors in low voltage, medium voltage and high voltage devices.
- One type of mechanical connectors comprises two connecting parts on opposing sides of the connector.
- An end of a first conductor, e.g. a cable, to be connected is inserted in one connecting part and fixed in place by one or more fastening bolts, e.g. shear bolts, that are tightened through threaded holes provided in the first connecting part.
- the second conductor e.g. a metal pin or round, is received and fixed by the second connecting part to provide an electrical coupling between the two conductors.
- the second connecting part typically comprises a moveable ring to be able to correctly position the ring with respect to the metal pin to be connected and furthermore provided with a screw adapted to clamp the second conductor to the connector.
- the electrical connector according to claim 1 relates to an electrical connector for connecting a first conductor with a second conductor, comprising a first connecting part and a second connecting part adapted to slip over at least a first portion of the first connecting part; and wherein the first and second connecting parts each comprise a means configured to prevent a decoupling of the second connecting part from the first connecting part when the first and the second connecting part are in a first predetermined relative position to each other; and to allow a decoupling when the first and second connecting part are in a second predetermined relative position to each other.
- relative position may also relate to a plurality of positions that satisfy the condition of preventing decoupling or allowing decoupling.
- the decoupling between the parts according to the invention is limited to one predetermined relative position by the means provided in the first and second connecting part thereby reducing the risk of an unwanted decoupling.
- the first portion of the first connecting part of the connector comprises towards its extremity a hollow right cylinder portion that is opened along its axis; wherein the cylinder can comprise towards its terminal end at least one protruding portion extending from the outer wall of the cylinder in the radial direction.
- the open cylinder portion is adapted to receive conductors of various shapes and diameters, e.g. wires, cables, rods or pins.
- the protruding portion on the terminal end provides a blocking means that will prevent the second connecting part from being decoupled when the first and the second connecting part are in the second predetermined relative position.
- the cross section of the cylinder may essentially be V-shaped towards the inside of the cylinder.
- the geometry of the cylinder is adapted to receive different sizes of conductors, which are positioned along the length of the V-shaped cylinder interior sidewalls and can effectively blocked against the interior sidewalls.
- the second connecting part comprises an essentially circular ring shaped through-hole mating the outer radius of the cylinder and comprising at least one groove in its inner surface extending along the axis. The at least one groove will allow coupling and wanted decoupling when the first and the second connecting parts are in the second predetermined relative position.
- the second connecting part can pass the blocking means and thereby be mounted on the first connecting part.
- the at least one groove in the second predetermined position, can be aligned with the protrusion and/or extremities of the cylinder; and wherein in the first predetermined position, the at least one groove can be misaligned with the protrusion and/or extremities of the cylinder.
- the assembly of the second connecting part with the first connecting part is rendered possible in the configuration of the second predetermined position; whereas the misalignment of the groove with the cylinder protrusion and/or with the extremities of the cylinder, i.e. in the first predetermined position, allows avoiding a decoupling of the first and the second connecting parts.
- the opening angle of the hollow and open right cylinder may be 180° or less. Limiting the opening angle to 180° or less keeps the axis of the hollow right cylinder aligned with the axis of the circular ring shaped through-hole of the second connecting part in the first predetermined relative position which reduces the risk of an unwanted decoupling.
- the second connecting part further comprises a positioning ensuring means for keeping the first and second connecting parts in the first predetermined position.
- This positioning ensuring means forces the two connecting parts to remain in the first predetermined position relative to each other and thus cannot be decoupled involuntarily.
- the positioning ensuring means comprise a screw positioned in a threaded through-hole extending essentially in the radial direction of the ring shaped wall of the second connecting part and ensuring the first predetermined position when the screw extends by a predetermined length into the inner volume of the ring shaped through-hole.
- the screw is a simple realization of the positioning ensuring means to ensure that the first and second connecting part remain in the first predetermined relative position. With the same screw it is also possible to fix a conductor once the conductor is introduced into the V-shaped cylinder of the first connecting part and at the same
- the screw axis and the opposing leg of the V-shaped cylinder form an angle that shall be smaller than 90° when the first and the second connecting parts are in the first predetermined relative position. Limiting the angle to less than 90° in the first predetermined relative position allows pushing a conductor placed in the V-shaped cylinder towards the bottom of the cylinder and enables a clamping contact between the conductor and the connector.
- the first portion of the first connecting part can comprise a second right cylindrical portion at its second terminal end portion aligned with the hollow right cylindrical portion; and wherein the second cylindrical portion can have an outer surface mating the inner surface of the second connecting part over an angular range of more than 180° and can further comprise a flat portion, in particular for receiving the screw of the positioning ensuring means.
- the second connecting part can be securely fixed to the first connecting part, thereby reducing the risk of losing the second connecting part.
- the screw can be deformed inside the ring such that the portion of the screw inside the ring is larger than the threaded through-hole. As a result, the deformed screw is no longer unscrewable. Thus, the screw and the ring can no longer be lost.
- the ring of the second connecting part can further comprise a second through-hole diametrically opposed to the threaded through-hole.
- a means, such as a tool, for deforming the portion of the screw inside the ring can be easily introduced inside the second connecting part through this second hole.
- Figure 1 shows a perspective view of the various elements forming a connector 1.
- the connector 1 comprises a first connecting part 100 and a second connecting part 200 that are configured to be mechanically coupled together. According to the invention, the second connection part 200 can slip over the first connecting part 100.
- the first connecting part 100 comprises a first portion 110 provided towards its extremity 112 with a hollow right, in particular, circular cylinder portion 114 that is opened along its axis A.
- the cylinder 114 comprises towards its extremity 112 one protruding portion 116, or protrusion 116, extending from the outer wall 118 of the cylinder 114 outwardly in the radial direction R.
- the cylinder 114 can also comprise more than one protruding portion 116.
- the first portion110 of the first connecting part 100 further comprises a second area 130 provided with a second right cylindrical portion 134 at its second terminal end portion 113, adjacent the first cylindrical portion 114 and extending along the same axis A.
- the second cylindrical portion 134 has a right circular portion 136 with the same radius as the first cylindrical portion 114 and extends over a larger angular range than the first cylindrical portion 114.
- the second cylindrical portion 134 further comprises a flat portion 138.
- the first connecting part 100 further comprises a second portion 140 at the opposing end 142 of the first connecting part 100.
- the second portion 140 is provided with an opening 144 for receiving the extremity of an electrical conductor, e.g. a cable or a wire (not shown).
- the electrical conductor can be fixed in the opening 144 by means of one or more bolts 146, 148, e.g. shear bolts, that can be tightened in threaded though-holes 150, 152 provided on an upper side of the second portion 140 of the first connecting part 100.
- the inner side of the opening 144 may be provided with a structured surface 145 against which the electrical conductor can be pressed when the bolts 146, 148 are tightened.
- the second connecting part 200 comprises a ring shaped through-hole 204 with an inner surface 202 mating the outer radius of the circular portions of the cylinders 114,134.
- the inner surface 202 furthermore comprises two grooves 206, 208 extending along the axis C of the through-hole 204 and over the entire length L of the second connecting part 200.
- the second connecting part 200 further comprises a screw 250 positioned in a threaded through-hole 252 extending in the radial direction of the ring shaped through-hole 204.
- FIG 2 a cross-section of the first 100 and the second 200 connecting parts of the connector 1. is Elements with the same reference numeral already used in Figure 1 will not be described in detail again but reference is made to their description above.
- the first connecting part 100 and the second connecting part 200 are in a relative position to each other in which the second connecting part 200 can be mount onto or removed from the first connecting part 100.
- This relative position is called the second predetermined relative position according to the claims.
- Figure 2 also illustrates, that the opening angle ⁇ of the hollow right cylinder 114 is less than 180°, as shown in the figure 1 .
- Figure 2 further illustrates that the cylinder 114 has an essentially V-shaped cross section on the inner side with legs 122 and 124.
- the geometry of the cylinder 114 is adapted to receive different sizes of conductor pins or rods (not shown).
- the second connecting part 200 can be mount on the hollow cylinder 114 by misaligning the axis A of the open cylinder 114 and the axis C of the ring shaped through-hole 204. In this relative position, the circular shapes of the first connecting part 100 and the second connecting part 200 are not concentric.
- the misalignment of the first connecting part 100 and the second connecting part 200 is rendered possible when the ring shaped through-hole 204 is positioned such that the axis D of its threaded through-hole 252 - and the screw 250 - is facing the protrusion's 116 of the cylinder 114. In this relative position, the extremities 122a, 124a of the legs 122, 124 of the V-shaped cylinder 114 can enter the grooves 206, 208 of the second connecting part 200.
- the second connecting part 200 in the relative position between the first connecting part 100 and the second connecting part, also referred to as the second predetermined relative position, the second connecting part 200 can be moved over the protrusion 116 and then can slip over the first connecting part 100 along a direction parallel to the axis A and C.
- Figures 3a and 3b illustrate the first connecting part 100 and the second connecting part 200 of the connector 1 in a further relative position, called the first predetermined relative position in the claims, corresponding to a mounted stage in which a decoupling of the two is prevented.
- Elements with the same reference numeral already used in Figure 1 or 2 will not be described in detail again but reference is made to their description above.
- Figure 3a is a three dimensional view of the connector 1 with the second connecting part 200 slip over the first portion 110 of the first connecting part 100.
- Figure 3.b illustrates a cross-section of the first connecting part 100 and the second connecting part 200 in the same relative position.
- the screw 250 serves as a positioning ensuring means once it is screwed into the threaded through-hole 252 so that its front side 254 enters into the ring shaped through-hole 204. It is therefore no longer possible to align the grooves 206, 208 with the extremities of the legs 122a and 124a.
- the second connecting part 200 can be rotated around axis C with respect to the cylinder (illustrated by the double arrow 256) in an angular range ⁇ that is limited by the contact of the front of the screw 254 with one of the leg extremities 122a and 124a.
- this entire angular range the axis C and A of the ring shaped through-hole 204 and the cylinder 114 remain aligned so that over this range ⁇ a decoupling is no longer possible.
- this range corresponds to the possible first relative positions of the first and second connecting parts 100 and 200 to each other.
- the figure 4 depicts the connector 1 in a configuration that can be used when the connector is not used, e.g. during shipment or storage. Elements with the same reference numeral already used in any one of figures 1 to 3 will not be described in detail again but reference is made to their description above.
- the ring shaped through-hole 204 can be moved onto the second cylindrical portion 134 (see figure 1 ).
- the screw 250 is then tightened and maintains the ring shaped through-hole 204 over the second right cylindrical portion 134 and does not move.
- the second connecting part 200 is in a fixed position with respect to the first connecting part 100.
- a conductor 2 has been inserted into the first portion 110 of the first connecting part 100.
- the conductor 2 represented in figure 5a and 5b is for example a cylindrical rod or pin, typically made of copper or other suitable metallic materials.
- the connector 1 can be used with different conductors as long as the conductor diameter d2 fits into the open space 260 between the inner surface 202 of the ring shaped through-hole 204 and the inner surface 117 of the first cylinder 114.
- the screw 250 has been unscrewed to be able to move the ring shaped through-hole 204 over the cylinder 114 receiving the conductor 2.
- the screw 250 is tightened again such that the screw 250 extends into the inner volume 260 of the ring shaped through-hole 204 and presses against the conductor 2.
- the screw 250 presses the conductor 2 against the inner wall 117 of the first connecting part 100, more precisely against the inner wall 117 of leg 124 of the V-shaped inner surface.
- the angle ⁇ between the direction of the pressing force which is along the screw axis D and the opposing leg 124 of the V-shaped inner wall 117 of the cylinder 114 is smaller than 90° when the first 100 and the second 200 connecting parts are in the first predetermined relative position.
- This condition can be satisfied by taking into account the opening angle ⁇ of the cylinder 114, the diameter 258 of the screw 250 and the slope ⁇ of the leg 124. With the angle ⁇ being less than 90° it is ensured the force along D pushes the conductor 2 towards the bottom 126 of the V-shaped inner surface 117.
- the flat portion 138 is positioned such that there is always a distance d1 between the flat portion 138 and the conductor 2, independent of the diameter d2 of the conductor 2. Thus, it is not needed to unscrew the screw out of inner volume 260 of the ring shaped through-hole 204. Thus for any conductor 2 the screw 250 will remain with its front portion 254 inside the ring shaped through-hole 204, so that the first predetermined relative position between the first connecting part 100 and the second connecting part 200 remains ensured and the second connecting part 200 cannot be removed from the first connecting part 100.
- the figure 6 represents a ring shaped through-hole 304 of a second connecting part 300 according to a second embodiment of the present invention.
- the only difference between the second embodiment and the first embodiment is the fact the ring shaped through-hole 304 only comprises one groove 306 instead of two or three.
- the remaining features are like in the first embodiment illustrated in figures 1 to 5 .
- the groove 306 is positioned at the same side as the through-hole 252 with the screw 250. According to other embodiments, the groove could also be moved away by about +/- 90°.
- the ring shaped through-hole 304 can be turned by a predetermined angle so that the protrusion 116 gets misaligned. In this position, the first relative position, a decoupling can be prevented.
- the first relative position can then be secured by turning the screw 250 until it is inside the inner volume 260 of the ring shaped through-hole 304.
- the axis C of the ring shaped through-hole 304 remains aligned with the axis A of the cylinder 114.
- the figure 7 represents a ring shaped through-hole 404 of a second connecting part 400 according to a third embodiment of the present invention.
- the only difference of the third embodiment with respect to the second connecting part 200 of the first embodiment is the presence of a second through-hole 452 which is diametrically opposite to the threaded through-hole 252.
- the through-hole 452 permits the insertion of a deformation tool adapted to deform the front of the screw 254 that is positioned inside the ring shaped through-hole 404 such that the front portion 254 of the screw 250 inside the ring 404 is larger than the diameter 262 of the threaded through-hole 252.
- the deformed screw 250 can no longer be removed and remains with its end portion 254 inside the ring shaped through-hole 404.
- the screw 250 and the ring can no longer be lost.
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
- The present invention relates to electrical connectors for connecting a first conductor to a second conductor.
- Such connectors, as known from
US 2017/0054250 A1 andUS 5,035,660 , are widely used for joining two conductors in low voltage, medium voltage and high voltage devices. - One type of mechanical connectors comprises two connecting parts on opposing sides of the connector. An end of a first conductor, e.g. a cable, to be connected is inserted in one connecting part and fixed in place by one or more fastening bolts, e.g. shear bolts, that are tightened through threaded holes provided in the first connecting part. The second conductor, e.g. a metal pin or round, is received and fixed by the second connecting part to provide an electrical coupling between the two conductors. The second connecting part typically comprises a moveable ring to be able to correctly position the ring with respect to the metal pin to be connected and furthermore provided with a screw adapted to clamp the second conductor to the connector.
- However, for the known mechanical connector, due to the fact that the ring is moveable with respect to the rest of the connector, the ring might get lost prior to use.
- Hence, it is an object of the present invention to provide an electrical connector for connecting a first conductor with a second conductor that overcomes the above-mentioned drawback of the art, and therefore reduces the risk of losing the ring.
- The above-mentioned problem is solved by the electrical connector according to
claim 1. It relates to an electrical connector for connecting a first conductor with a second conductor, comprising a first connecting part and a second connecting part adapted to slip over at least a first portion of the first connecting part; and wherein the first and second connecting parts each comprise a means configured to prevent a decoupling of the second connecting part from the first connecting part when the first and the second connecting part are in a first predetermined relative position to each other; and to allow a decoupling when the first and second connecting part are in a second predetermined relative position to each other. In this context relative position may also relate to a plurality of positions that satisfy the condition of preventing decoupling or allowing decoupling. - Whereas in the prior art, a decoupling was possible for any relative position between the first and the second connecting part, the decoupling between the parts according to the invention is limited to one predetermined relative position by the means provided in the first and second connecting part thereby reducing the risk of an unwanted decoupling.
- According to the invention, the first portion of the first connecting part of the connector comprises towards its extremity a hollow right cylinder portion that is opened along its axis; wherein the cylinder can comprise towards its terminal end at least one protruding portion extending from the outer wall of the cylinder in the radial direction. The open cylinder portion is adapted to receive conductors of various shapes and diameters, e.g. wires, cables, rods or pins. The protruding portion on the terminal end provides a blocking means that will prevent the second connecting part from being decoupled when the first and the second connecting part are in the second predetermined relative position.
- According to an embodiment of the invention, the cross section of the cylinder may essentially be V-shaped towards the inside of the cylinder. As a result, the geometry of the cylinder is adapted to receive different sizes of conductors, which are positioned along the length of the V-shaped cylinder interior sidewalls and can effectively blocked against the interior sidewalls.. According to the invention, the second connecting part comprises an essentially circular ring shaped through-hole mating the outer radius of the cylinder and comprising at least one groove in its inner surface extending along the axis. The at least one groove will allow coupling and wanted decoupling when the first and the second connecting parts are in the second predetermined relative position. Thus, the second connecting part can pass the blocking means and thereby be mounted on the first connecting part.
- According to an embodiment of the invention, in the second predetermined position, the at least one groove can be aligned with the protrusion and/or extremities of the cylinder; and wherein in the first predetermined position, the at least one groove can be misaligned with the protrusion and/or extremities of the cylinder. As a consequence, the assembly of the second connecting part with the first connecting part is rendered possible in the configuration of the second predetermined position; whereas the misalignment of the groove with the cylinder protrusion and/or with the extremities of the cylinder, i.e. in the first predetermined position, allows avoiding a decoupling of the first and the second connecting parts.
- According to an embodiment of the invention, the opening angle of the hollow and open right cylinder may be 180° or less. Limiting the opening angle to 180° or less keeps the axis of the hollow right cylinder aligned with the axis of the circular ring shaped through-hole of the second connecting part in the first predetermined relative position which reduces the risk of an unwanted decoupling.
- According to the invention, the second connecting part further comprises a positioning ensuring means for keeping the first and second connecting parts in the first predetermined position. This positioning ensuring means forces the two connecting parts to remain in the first predetermined position relative to each other and thus cannot be decoupled involuntarily.
- According to the invention, the positioning ensuring means comprise a screw positioned in a threaded through-hole extending essentially in the radial direction of the ring shaped wall of the second connecting part and ensuring the first predetermined position when the screw extends by a predetermined length into the inner volume of the ring shaped through-hole. The screw is a simple realization of the positioning ensuring means to ensure that the first and second connecting part remain in the first predetermined relative position. With the same screw it is also possible to fix a conductor once the conductor is introduced into the V-shaped cylinder of the first connecting part and at the same
- According to an embodiment of the invention, the screw axis and the opposing leg of the V-shaped cylinder form an angle that shall be smaller than 90° when the first and the second connecting parts are in the first predetermined relative position. Limiting the angle to less than 90° in the first predetermined relative position allows pushing a conductor placed in the V-shaped cylinder towards the bottom of the cylinder and enables a clamping contact between the conductor and the connector.
- According to an embodiment of the invention, the first portion of the first connecting part can comprise a second right cylindrical portion at its second terminal end portion aligned with the hollow right cylindrical portion; and wherein the second cylindrical portion can have an outer surface mating the inner surface of the second connecting part over an angular range of more than 180° and can further comprise a flat portion, in particular for receiving the screw of the positioning ensuring means. When the connector is not in use, e.g. for shipment or storage, the second connecting part can be securely fixed to the first connecting part, thereby reducing the risk of losing the second connecting part.
- According to an embodiment of the invention, the screw can be deformed inside the ring such that the portion of the screw inside the ring is larger than the threaded through-hole. As a result, the deformed screw is no longer unscrewable. Thus, the screw and the ring can no longer be lost.
- According to an embodiment of the invention, the ring of the second connecting part can further comprise a second through-hole diametrically opposed to the threaded through-hole. Hence, a means, such as a tool, for deforming the portion of the screw inside the ring can be easily introduced inside the second connecting part through this second hole.
- Additional features and advantages of the present invention will be described with reference to the drawings. In the description, reference is made to the accompanying figures that are meant to illustrate preferred embodiments of the invention.
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Figure 1 illustrates a schematic view of elements forming an electrical connector according to the present invention; -
Figure 2 illustrates a cross-section of the connector of the present invention in the configuration of the second predetermined relative position; -
Figures 3a and3b illustrate the connector of the present invention in the configuration of the first predetermined relative position; -
Figure 4 illustrates the connector of the present invention during transport; -
Figure 5a and 5b illustrate the connector of the present invention in a coupled state together with a conductor; -
Figure 6 illustrates the second connecting part of the present invention according to a second embodiment; and -
Figure 7 illustrates the second connecting part of the present invention according to a third embodiment. -
Figure 1 shows a perspective view of the various elements forming aconnector 1. Theconnector 1 comprises a first connectingpart 100 and a second connectingpart 200 that are configured to be mechanically coupled together. According to the invention, thesecond connection part 200 can slip over the first connectingpart 100. - The first connecting
part 100 comprises afirst portion 110 provided towards itsextremity 112 with a hollow right, in particular,circular cylinder portion 114 that is opened along its axis A. - The
cylinder 114 comprises towards itsextremity 112 oneprotruding portion 116, orprotrusion 116, extending from theouter wall 118 of thecylinder 114 outwardly in the radial direction R. In alternative realisations thecylinder 114 can also comprise more than oneprotruding portion 116. - The first portion110 of the first connecting
part 100 further comprises asecond area 130 provided with a second rightcylindrical portion 134 at its secondterminal end portion 113, adjacent the firstcylindrical portion 114 and extending along the same axis A. - The second
cylindrical portion 134 has a rightcircular portion 136 with the same radius as the firstcylindrical portion 114 and extends over a larger angular range than the firstcylindrical portion 114. The secondcylindrical portion 134 further comprises aflat portion 138. - The first connecting
part 100 further comprises asecond portion 140 at theopposing end 142 of the first connectingpart 100. Thesecond portion 140 is provided with anopening 144 for receiving the extremity of an electrical conductor, e.g. a cable or a wire (not shown). The electrical conductor can be fixed in theopening 144 by means of one ormore bolts holes second portion 140 of the first connectingpart 100. In order to improve the fixation of the electrical cable to thesecond portion 140, the inner side of theopening 144 may be provided with astructured surface 145 against which the electrical conductor can be pressed when thebolts - The second connecting
part 200 comprises a ring shaped through-hole 204 with aninner surface 202 mating the outer radius of the circular portions of the cylinders 114,134. Theinner surface 202 furthermore comprises twogrooves hole 204 and over the entire length L of the second connecting part 200.The second connectingpart 200 further comprises ascrew 250 positioned in a threaded through-hole 252 extending in the radial direction of the ring shaped through-hole 204. - In
figure 2 , a cross-section of the first 100 and the second 200 connecting parts of theconnector 1. is Elements with the same reference numeral already used inFigure 1 will not be described in detail again but reference is made to their description above. - The first connecting
part 100 and the second connectingpart 200 are in a relative position to each other in which the second connectingpart 200 can be mount onto or removed from the first connectingpart 100. This relative position is called the second predetermined relative position according to the claims. -
Figure 2 also illustrates, that the opening angle α of the hollowright cylinder 114 is less than 180°, as shown in thefigure 1 .Figure 2 further illustrates that thecylinder 114 has an essentially V-shaped cross section on the inner side withlegs cylinder 114 is adapted to receive different sizes of conductor pins or rods (not shown). - The second connecting
part 200 can be mount on thehollow cylinder 114 by misaligning the axis A of theopen cylinder 114 and the axis C of the ring shaped through-hole 204. In this relative position, the circular shapes of the first connectingpart 100 and the second connectingpart 200 are not concentric. - The misalignment of the first connecting
part 100 and the second connectingpart 200 is rendered possible when the ring shaped through-hole 204 is positioned such that the axis D of its threaded through-hole 252 - and the screw 250 - is facing the protrusion's 116 of thecylinder 114. In this relative position, theextremities legs cylinder 114 can enter thegrooves part 200. - As a result, in the relative position between the first connecting
part 100 and the second connecting part, also referred to as the second predetermined relative position, the second connectingpart 200 can be moved over theprotrusion 116 and then can slip over the first connectingpart 100 along a direction parallel to the axis A and C. -
Figures 3a and3b illustrate the first connectingpart 100 and the second connectingpart 200 of theconnector 1 in a further relative position, called the first predetermined relative position in the claims, corresponding to a mounted stage in which a decoupling of the two is prevented. Elements with the same reference numeral already used inFigure 1 or2 will not be described in detail again but reference is made to their description above. -
Figure 3a , is a three dimensional view of theconnector 1 with the second connectingpart 200 slip over thefirst portion 110 of the first connectingpart 100.Figure 3.b illustrates a cross-section of the first connectingpart 100 and the second connectingpart 200 in the same relative position. - As can be seen in
figures 3a and3b , once the second connectingpart 200 has been passed over theprotrusion 116 on theouter wall 118 of thecylinder 114, the second connecting part has been rotated by 180° around its axis C. - In this relative position, the axis A of the first connecting
part 100 and the axis C of thesecond connection part 200 are aligned. As a result, thegrooves legs cylinder 114. In this relative position, the removal of the ring shaped through-hole 204 is prevented as it abuts against theprotrusion 116. - In this relative position, the
screw 250 serves as a positioning ensuring means once it is screwed into the threaded through-hole 252 so that itsfront side 254 enters into the ring shaped through-hole 204. It is therefore no longer possible to align thegrooves legs - Now, the second connecting
part 200 can be rotated around axis C with respect to the cylinder (illustrated by the double arrow 256) in an angular range β that is limited by the contact of the front of thescrew 254 with one of theleg extremities hole 204 and thecylinder 114 remain aligned so that over this range β a decoupling is no longer possible. According to the invention this range corresponds to the possible first relative positions of the first and second connectingparts - In this embodiment it is the interplay between the
protrusion 116, thegrooves - The
figure 4 depicts theconnector 1 in a configuration that can be used when the connector is not used, e.g. during shipment or storage. Elements with the same reference numeral already used in any one offigures 1 to 3 will not be described in detail again but reference is made to their description above. - As the right
circular portion 136 of the secondcylindrical portion 134 has the same radius as theouter surface 118 of thecylinder 114, the ring shaped through-hole 204 can be moved onto the second cylindrical portion 134 (seefigure 1 ). - Once moved over the second
cylindrical portion 136, thescrew 250 of the ring shaped through-hole 204 is tightened such that itsfront end 254 comes on a rest on top of theflat portion 138, as can be seen inFigure 3b . - The
screw 250 is then tightened and maintains the ring shaped through-hole 204 over the second rightcylindrical portion 134 and does not move. Thus, the second connectingpart 200 is in a fixed position with respect to the first connectingpart 100. - In the
figures 5a and 5b , theconnector 1 is represented together with amounted conductor 2. Elements with the same reference numeral already used in any one offigures 1 to 4 will not be described in detail again but reference is made to their description above. - A
conductor 2 has been inserted into thefirst portion 110 of the first connectingpart 100. Theconductor 2 represented infigure 5a and 5b is for example a cylindrical rod or pin, typically made of copper or other suitable metallic materials. Theconnector 1 can be used with different conductors as long as the conductor diameter d2 fits into theopen space 260 between theinner surface 202 of the ring shaped through-hole 204 and theinner surface 117 of thefirst cylinder 114. - Starting from the position as illustrated in
figure 4 , thescrew 250 has been unscrewed to be able to move the ring shaped through-hole 204 over thecylinder 114 receiving theconductor 2. In order to securely fix theconductor 2 within theconnector 1, thescrew 250 is tightened again such that thescrew 250 extends into theinner volume 260 of the ring shaped through-hole 204 and presses against theconductor 2. - As illustrated in the cross sectional view of
figure 5b , thescrew 250 presses theconductor 2 against theinner wall 117 of the first connectingpart 100, more precisely against theinner wall 117 ofleg 124 of the V-shaped inner surface. - For the purpose of improving the coupling between the
connector 1 and theconductor 2, the angle γ between the direction of the pressing force which is along the screw axis D and theopposing leg 124 of the V-shapedinner wall 117 of thecylinder 114 is smaller than 90° when the first 100 and the second 200 connecting parts are in the first predetermined relative position. This condition can be satisfied by taking into account the opening angle α of thecylinder 114, thediameter 258 of thescrew 250 and the slope δ of theleg 124. With the angle γ being less than 90° it is ensured the force along D pushes theconductor 2 towards thebottom 126 of the V-shapedinner surface 117. - Furthermore, the
flat portion 138 is positioned such that there is always a distance d1 between theflat portion 138 and theconductor 2, independent of the diameter d2 of theconductor 2. Thus, it is not needed to unscrew the screw out ofinner volume 260 of the ring shaped through-hole 204. Thus for anyconductor 2 thescrew 250 will remain with itsfront portion 254 inside the ring shaped through-hole 204, so that the first predetermined relative position between the first connectingpart 100 and the second connectingpart 200 remains ensured and the second connectingpart 200 cannot be removed from the first connectingpart 100. - The
figure 6 represents a ring shaped through-hole 304 of a second connectingpart 300 according to a second embodiment of the present invention. The only difference between the second embodiment and the first embodiment is the fact the ring shaped through-hole 304 only comprises onegroove 306 instead of two or three. The remaining features are like in the first embodiment illustrated infigures 1 to 5 . - The
groove 306 is positioned at the same side as the through-hole 252 with thescrew 250. According to other embodiments, the groove could also be moved away by about +/- 90°. - In a relative position between the first connecting
part 100 and the second connectingpart 300 of the second embodiment where thegroove 306 is aligned with theprotrusion 116 of thecylinder 114 of the first connectingpart 200 the second connecting part can be moved over the protrusion and slip over thecylinder 114 to get it mount. This corresponds to the second relative position according to the claims. - Once passed the
protrusion 116, the ring shaped through-hole 304 can be turned by a predetermined angle so that theprotrusion 116 gets misaligned. In this position, the first relative position, a decoupling can be prevented. - The first relative position can then be secured by turning the
screw 250 until it is inside theinner volume 260 of the ring shaped through-hole 304. - Unlike in the first embodiment, the axis C of the ring shaped through-
hole 304 remains aligned with the axis A of thecylinder 114. - The
figure 7 represents a ring shaped through-hole 404 of a second connectingpart 400 according to a third embodiment of the present invention. The only difference of the third embodiment with respect to the second connectingpart 200 of the first embodiment is the presence of a second through-hole 452 which is diametrically opposite to the threaded through-hole 252. - The through-
hole 452 permits the insertion of a deformation tool adapted to deform the front of thescrew 254 that is positioned inside the ring shaped through-hole 404 such that thefront portion 254 of thescrew 250 inside thering 404 is larger than thediameter 262 of the threaded through-hole 252. - Hence, the
deformed screw 250 can no longer be removed and remains with itsend portion 254 inside the ring shaped through-hole 404. In this embodiment, thescrew 250 and the ring can no longer be lost. - Modifications to embodiments of the invention described in the foregoing are possible without departing from the scope of the invention as defined by the accompanying claims. Expressions such as "including", "comprising", "incorporating", "consisting of", "have", "is" used to describe and claim the present invention are intended to be construed in a non-exclusive manner, namely allowing for items, components or elements not explicitly described also to be present. Reference to the singular is also to be construed to relate to the plural.
-
- A, C, D:
- axis
- L:
- length of the second connecting part
- d1:
- distance between flat portion and conductor
- d2:
- diameter of conductor
- 1:
- connector
- 2:
- conductor
- 100:
- first connecting part
- 110:
- first portion of the first connecting part
- 112:
- extremity of the first portion
- 113:
- opposite extremity of the first portion
- 114:
- cylinder portion
- 116:
- protruding portion, protrusion
- 117:
- interior sidewall
- 118:
- outer wall
- 119:
- inner wall
- 120:
- opening angle
- 122, 124:
- leg
- 122a, 124a:
- leg extremity
- 126:
- bottom of V-shape inner surface
- 130:
- second area of the first portion
- 134:
- second right cylindrical portion
- 136:
- outer surface
- 138:
- flat portion
- 140:
- second portion of the first connecting part
- 142:
- rear end of the first connecting part
- 144:
- opening
- 145:
- structured surface
- 146, 148:
- clamping bolt
- 150, 152:
- threaded through-hole
- 200, 300, 400:
- second connecting part
- 202:
- inner surface
- 204, 304, 404:
- ring shaped through-hole
- 206, 208, 306:
- groove
- 250:
- screw
- 252:
- threaded through-hole
- 254:
- front of screw
- 256:
- rotation range
- 258:
- diameter of screw
- 260:
- open space/volume
- 262:
- diameter of the through-
hole 252 - 452:
- through-hole
- α:
- opening angle
- β:
- angular range
- γ :
- force angle
- δ:
- slope
Claims (8)
- An electrical connector (1) for connecting a first conductor (2) with a second conductor, comprising:a first connecting part (100) comprising a first portion (110) and a second portion (140),the first portion (110) of the first connecting part (100) comprising towards one extremity (112) of the first portion (110) a hollow right cylinder portion (114) that is opened along the axis (A) of the cylinder (114),
the cylinder (114) comprising towards a terminal end of the cylinder (114) at least one protruding portion (116) extending from an outer wall (118) of the cylinder (114) in a radial direction (R); the cylinder (114) being adapted for receiving the first conductor (2), andthe second portion (140) of the first connecting part (100) comprising an opening (144) for receiving an extremity of the second conductor;a second connecting part (200, 300, 400) which is adapted to slip over at least the first portion (110) of the first connecting part (100);wherein the first connecting part (100) and second connecting part (200, 300, 400) each comprise a means configured to prevent a decoupling of the second connecting part (200, 300, 400) from the first connecting part (100) when the first connecting part (100) and the second connecting part (200, 300, 400) are in a first predetermined relative position to each other; and to allow a decoupling when the first connecting part (100) and second connecting part (200, 300, 400) are in a second predetermined relative position to each other;characterized in that
the second connecting part (200, 300, 400) comprises an essentially circular ring shaped through-hole (204, 304, 404) mating an outer radius of the cylinder (114) and comprises at least one groove (206, 208, 306) in an inner surface (202) extending along the axis (C) of the ring shaped through-hole (204, 304, 404); andwherein the second connecting part (200, 300, 400) is further comprising a positioning ensuring means for keeping the first (100) and the second (200, 300, 400) connecting parts in the first predetermined position;
the positioning ensuring means comprising a screw (250) positioned in a threaded through-hole (252) extending essentially in a radial direction (D) of the ring shaped through-hole (204, 304, 404) inner surface (202) of the second connecting part (200, 300, 400) and ensuring the first predetermined position when the screw (250) extends by a predetermined length into an inner volume (260) of the ring shaped through-hole (204, 304, 404). - The electrical connector (1) according to claim 1, wherein the cylinder has an essentially V-shaped cross section on an inner side with legs (122, 124).
- The electrical connector (1) according to claim 1 or 2, wherein in the second predetermined position, the at least one groove (206, 208, 306) is aligned with the protruding portion (116) and/or extremities (122a, 124a) of the cylinder (114); and wherein in the first predetermined position, the at least one groove (206, 208, 306) is misaligned with the protruding portion (116) and/or extremities (122a, 124a) of the cylinder (114).
- The electrical connector (1) according to claim 1, 2 or 3, wherein the opening angle (α) of the hollow and open right cylinder (114) is 180° or less.
- The electrical connector (1) according to one of claims 2 to 4, wherein the screw (250) axis and an opposing leg (122, 124) of the V-shaped cylinder (114) form an angle (γ) that is smaller than 90° when the first (100) and the second (200, 300, 400) connecting parts are in the first predetermined position.
- The electrical connector (1) according to one of claims 1 to 5, wherein the first portion (110) of the first connecting part (100) comprises a second right cylindrical portion (134) at a second terminal end portion (113) aligned with the hollow right cylindrical portion (114); and
wherein the second cylindrical portion (134) has an outer surface (136) mating the inner surface (202) of the second connecting part (200, 300, 400) over an angular range of more than 180° and further comprising a flat portion (138) for receiving the screw (250) of the positioning ensuring means. - The electrical connector (1) according to one of claims 1 to 6, wherein the screw (250) is deformed inside the ring shaped through-hole (204, 304, 404) such that a portion (254) of the screw (250) inside the ring shaped through-hole (204, 304, 404) is larger than the diameter (258, 262) of the threaded through-hole (252).
- The electrical connector (1) according to claim 7, wherein the ring shaped through-hole (204, 304, 404) of the second connecting part (200, 300, 400) is further comprising a second through-hole (452) diametrically at the opposite of the threaded through-hole (252).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17306193.8A EP3457496B1 (en) | 2017-09-15 | 2017-09-15 | Electrical connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17306193.8A EP3457496B1 (en) | 2017-09-15 | 2017-09-15 | Electrical connector |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3457496A1 EP3457496A1 (en) | 2019-03-20 |
EP3457496B1 true EP3457496B1 (en) | 2020-07-01 |
Family
ID=60001806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17306193.8A Active EP3457496B1 (en) | 2017-09-15 | 2017-09-15 | Electrical connector |
Country Status (1)
Country | Link |
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EP (1) | EP3457496B1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5035660A (en) * | 1988-11-29 | 1991-07-30 | Amp Incorporated | Eccentric electrical cable connecting device |
DE69423658T2 (en) * | 1994-12-09 | 2000-07-13 | Jonan Denki Seiki Ltd., Tokio/Tokyo | CONNECTION BLOCK |
US8747170B2 (en) * | 2012-05-02 | 2014-06-10 | Tyco Electronics Corporation | Connector assemblies and systems and methods for forming disconnectable joint assemblies |
DE102013107508B4 (en) * | 2013-07-16 | 2021-04-01 | Phoenix Contact Gmbh & Co. Kg | Contact device for establishing an electrical connection with a contact point on a printed circuit board |
US9843131B2 (en) * | 2015-08-19 | 2017-12-12 | Apple Inc. | Cable connectors and methods for the assembly thereof |
EP3159977B1 (en) * | 2015-10-21 | 2019-08-28 | Tyco Electronics SIMEL | Split connector with circular dove tail |
-
2017
- 2017-09-15 EP EP17306193.8A patent/EP3457496B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
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EP3457496A1 (en) | 2019-03-20 |
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