Disconnect terminal assembly

Abstract

A disconnect terminal arrangement (1) comprises at least two disconnect terminals (2, 3) arranged in a row along a direction (A) and each having at least one first electrical connection (200, 300), at least one second electrical connection (201, 301) and a switching device (21, 31). A coupling device serves to mechanically couple the switching devices (21, 31) of the at least two disconnect terminals (2, 3) in order to actuate the switching devices (21, 31) together.The coupling device comprises a first coupling element (22) associated with the switching device (21, 31) of a first of the at least two disconnect terminals (2, 3), a second coupling element (32) associated with the switching device (21, 31) of at least a second of the at least two disconnect terminals (2, 3), and a connecting element (4), wherein the connecting element (4) is adjustable along the alignment direction (A) relative to the first coupling element (22) and the second coupling element (32) between a coupling position and a release position.

Description

[0001] The invention relates to a disconnect terminal arrangement according to the preamble of claim 1.

[0002] Such a disconnect terminal arrangement comprises at least two disconnect terminals that are arranged in a row along a row direction and each have at least one first electrical connection, at least one second electrical connection, and a switching device. The switching device of each of the at least two disconnect terminals can be switched between a first switching position, in which the at least one first electrical connection and the at least one second electrical connection of the respectively assigned disconnect terminal are electrically connected to one another, and a second switching position, in which the at least one first electrical connection and the at least one second electrical connection are electrically separated from one another.

[0003] With such a disconnect terminal arrangement, it is normally sufficient to switch the switching devices of the combined disconnect terminals together, for example, the switching devices of a pair of adjacent disconnect terminals. For this purpose, the disconnect terminal arrangement has a coupling device designed to mechanically couple the switching devices of the at least two disconnect terminals to one another, thus enabling joint actuation of the switching devices.The coupling device has a first coupling element which is assigned to the switching device of a first of the at least two isolating terminals, a second coupling element which is assigned to the switching device of at least a second of the at least two isolating terminals, and a connecting member, wherein the connecting member is adjustable along the alignment direction relative to the first coupling element and the second coupling element in order to couple the first coupling element and the second coupling element to one another in a coupling position for jointly actuating the switching devices of the at least two isolating terminals and not to couple the first coupling element and the second coupling element to one another in a release position for separately actuating the switching devices of the at least two isolating terminals.

[0004] A corresponding isolating terminal arrangement is known, for example, from DE 44 44 556 A1 or DE 198 48 264 C1. Furthermore, DE 42 33 852 A1 discloses a connecting device for the simultaneous actuation of the switching knobs of at least two switches.

[0005] An arrangement of isolating terminals of the type in question here is used, for example, in combination with so-called measuring transformers. Measuring transformers are typically used to convert an incoming electrical quantity such as current or voltage into a proportional, deviating output quantity. In this process, large voltages or currents are usually (proportionally) reduced to enable measurement in an electrical system using a commercially available measuring device. So-called measuring transformer isolating terminals enable the professional and standard-compliant construction of a measuring transformer system, for example, for use in the energy sector, by establishing a connection to measuring transformers and, via an arrangement of isolating terminals, to one or more measuring devices.

[0006] While it is normally sufficient to switch the switching devices of combined isolating terminals together, in individual cases it may be necessary to switch a switching device of a single isolating terminal separately and independently of the switching device of another isolating terminal. Common coupling devices, for example, use a connector that is plugged into the switching levers of switching devices and, when plugged in, is firmly connected to the switching levers. Such a connector cannot be easily removed from the switching levers and must be dismantled, which is comparatively complex, to enable switching of a single switching device.

[0007] EP 3 796 354 A2 discloses a coupling device that can be adjusted between a first coupling position and a second coupling position. In the first coupling position, shift levers of adjacent disconnect terminals are coupled to each other. In the second coupling position, however, the shift levers are separated from each other, allowing the shift levers to be shifted independently of each other.

[0008] The object of the present invention is to provide a disconnect terminal arrangement which enables switching devices of at least two disconnect terminals to be coupled to one another in a simple and user-friendly manner, but also to be separated from one another if necessary.

[0009] This object is achieved by an article having the features of claim 1.

[0010] Accordingly, in the coupling position, the connecting member is rotatable about an axis of rotation pointing along the alignment direction to the first coupling element and the second coupling element between a first rotational position and a second rotational position.

[0011] The coupling device serves to couple the switching devices of at least two isolating terminals that are arranged in a row along a row direction. In a coupling position, the coupling device establishes a mechanical coupling between the switching devices, for example, between the switching levers of the switching devices, so that the switching devices can be switched jointly via the coupling device. However, the coupling device can be adjusted to a release position in which the switching devices are not coupled to one another and can thus be switched independently of one another.

[0012] The coupling is established via a connecting link that is adjustable relative to coupling elements. A first coupling element is assigned to the switching device of a first of the isolating terminals. A second coupling element is assigned to at least a second of the isolating terminals. In the coupling position, the connecting link establishes a connection between the coupling elements, so that the switching devices can only be switched together. In the release position, however, the coupling elements are separated from one another, so that the switching devices can be switched independently of one another.

[0013] The connecting link is adjustable relative to the first coupling element and the second coupling element along the alignment direction and can thus be moved between the coupling position and the release position. This results in a simple, space-saving design in which the connecting link can be adjusted linearly relative to the coupling elements along the alignment direction to selectively establish or release the coupling between the coupling elements.

[0014] In one embodiment, the switching devices of the at least two isolating terminals can each be pivoted about a pivot axis common to the switching devices relative to a housing of the respectively assigned isolating terminal for switching between the first switching position and the second switching position. The switching devices can be designed, for example, as switching levers or as so-called isolating blades. In the first switching position, the switching devices establish a connection between first terminals and second terminals of the respective isolating terminals. In the second switching position, in contrast, the first terminals and the second terminals are electrically isolated from one another.

[0015] In one embodiment, the pivot axis can be directed in particular along the row direction.

[0016] In another embodiment, each switching device can be displaced linearly relative to a housing of the associated disconnect terminal. The switching devices are thus linearly adjustable for switching.

[0017] In one embodiment, the first coupling element is fixedly or detachably connected to the switching device of the first of the at least two isolating terminals. Additionally or alternatively, the second coupling element can also be fixedly or detachably connected to the switching device of the at least one second of the at least two isolating terminals. The first coupling element can, for example, be designed integrally with the switching device, for example a switching lever, of the first isolating terminal. Likewise, the second coupling element can be designed integrally with the switching device, for example a switching lever, of the at least one second isolating terminal. Alternatively, the first coupling element can, for example, be plugged into the switching device of the first isolating terminal, wherein in the plugged-in position the first coupling element is, for example, releasably latched to the associated switching device.Likewise, the second coupling element can be plugged, for example, into the switching device of the at least one second isolating terminal, wherein in the plugged-in position the second coupling element is, for example, releasably latched to the associated switching device.

[0018] In one embodiment, the connecting link has an adjusting body that is accommodated in a guide opening of one of the first coupling element and the second coupling element so that it can be adjusted along the alignment direction. In the guide opening, the adjusting body of the connecting link can be displaced along the alignment direction to thereby move the connecting link between the coupling position and the release position. In the coupling position, the adjusting body protrudes, for example, from the guide opening and thus establishes a coupling with the other coupling element. In the release position, in contrast, the adjusting body is pushed into the guide opening, for example, so that the coupling between the coupling elements is canceled.

[0019] The adjusting body of the connecting link can, for example, be formed by a cylindrical bolt body that is guided in the guide opening so that it can be moved linearly along the alignment direction. The bolt body can be used to adjust the connecting link in the guide opening, allowing the connecting link to be moved between the coupling position and the release position.

[0020] However, the bolt body can also have any other shape. For example, the bolt body can have a cuboid shape.

[0021] In one embodiment, the connecting link has a locking element that prevents the connecting link from moving out of the guide opening beyond the coupling position. The connecting link is thus held captively on the associated coupling element, for example, by the locking element coming into contact with a locking portion on an edge of the guide opening when the connecting link is moved into the coupling position. Beyond the coupling position, the connecting link cannot be moved relative to the guide opening, in particular cannot be pushed out of the guide opening, thus preventing the connecting link from sliding out of the guide opening.

[0022] The locking element can, for example, protrude from the adjusting body transversely to the alignment direction. An associated locking section in the area of the guide opening can, for example, be formed by a radially inwardly projecting web with which the locking element engages in the coupling position.

[0023] In one embodiment, the connecting member engages in an engagement opening of the other of the first coupling element and the second coupling element in the coupling position. The connecting member received in the guide opening of one coupling element thus engages in the engagement opening of the other coupling element in the coupling position, for example with the adjusting body, and thus establishes a positive coupling between the coupling elements. If the switching devices are pivotable for switching, for example about a pivot axis directed along the row direction, the connecting member extends in the coupling position transversely to a pivot plane along which the switching devices are movable for switching, between the coupling elements, so that the coupling elements are mechanically reliably coupled to one another and can only be switched together.In the release position, however, the connecting link does not engage in the engagement opening of the other coupling element, so that the mechanical coupling between the coupling elements is canceled and the coupling elements and, above them, the switching devices can be operated independently of one another.

[0024] The connecting member can, for example, engage the engagement opening with the adjusting body. Additionally or alternatively, an engagement portion, for example, with a conical shape, can be formed on the adjusting body of the connecting member, which engages with an associated engagement opening on the other coupling element.

[0025] In one embodiment, the connecting link has a locking element for locking in the engagement opening. The locking element can, for example, be formed as a locking lug on the adjusting body or on an engagement section formed on the adjusting body and, in the coupling position, engage behind an edge section delimiting the engagement opening, thereby establishing a locking connection and thus locking the connecting link in the coupling position along the alignment direction. The locking connection can be releasable, so that upon application of a sufficiently large force, the coupling element can be released from the coupling position, thus removing the coupling between the coupling elements and, consequently, between the switching devices.

[0026] According to the invention, in the coupling position, the connecting link is rotatable about an axis of rotation pointing along the alignment direction to the first coupling element and the second coupling element between a first rotational position and a second rotational position. The connecting link can thus be moved along the alignment direction between the first coupling element and the second coupling element to transfer it into the coupling position in order to establish a connection between the coupling elements in the coupling position. If the connecting link is in the coupling position, the connecting link can, for example, additionally be pivoted about the axis of rotation pointing along the alignment direction, for example in order to transfer the connecting link into a locked position in which the connecting link is locked to the coupling elements in such a way that the connecting link cannot be moved out of the coupling position along the alignment direction.

[0027] A rotating bearing for the connecting link can be created, for example, by means of a cylindrical bolt body which is rotatably received in the guide opening of one coupling element and also in the engagement opening of the other coupling element.

[0028] For example, in the first rotational position, the connecting link can be moved along the alignment direction into the coupling position and also back out of the coupling position. In contrast, the second rotational position can correspond to a locked position in which the connecting link is locked such that the connecting link cannot be moved along the alignment direction out of the coupling position, at least not without rotating the connecting link back into the first rotational position.

[0029] For example, in the second rotational position, the connecting link is positively locked with respect to the alignment direction. In the second rotational position, there is thus a positive connection between the connecting link and at least one of the coupling elements, which prevents the connecting link from being moved along the alignment direction relative to the coupling elements, so that the connecting link is locked in the coupling position.

[0030] In one embodiment, at least one of the first coupling element and the second coupling element has a locking element. The connecting member, in contrast, has a locking portion that engages with the locking element in the second rotational position. The locking element can be shaped, for example, as a projection. In contrast, an opening can be formed on the locking portion, for example, which engages with the locking element in the second rotational position, thereby establishing a positive hold of the connecting member in the second rotational position and thus in the coupling position.

[0031] In one embodiment, the connecting member has a first locking device. The second coupling element, in contrast, has a second locking device. In the release position, the connecting member is locked to the second locking device via the first locking device, so that the connecting member is held in the release position. The first locking device and the second locking device can interact in a locking manner, for example, such that the connecting member is locked in the first rotational position relative to the second coupling element with respect to a circumferential direction pointing around the rotational axis.

[0032] One of the locking devices can be formed, for example, by a protruding locking web extending longitudinally along the alignment direction. The other locking device, in contrast, can be formed, for example, by a locking groove extending longitudinally along the alignment direction. In the locked position, the locking devices preferably engage with one another in a force-locking manner.

[0033] In one embodiment, the second coupling element additionally has a third locking device. The connecting member is locked in the coupling position with the third locking device of the second coupling element via the first locking device. In particular, the connecting member can be locked in the second rotational position by engagement of the first locking device with the third locking device relative to the second coupling element. The first locking device and the third locking device interact in a locking manner, for example, such that the connecting member is locked in the second rotational position relative to the second coupling element with respect to a circumferential direction pointing around the rotational axis.

[0034] In one embodiment, the connecting link has a handle portion for actuation by a user. The handle portion can, for example, protrude transversely (radially) to the alignment direction from the adjustment body and allows a user to grasp it. Adjustment forces can thus be introduced into the connecting link via the handle portion to move the connecting link between the release position and the coupling position and, if necessary, additionally to rotate the connecting link in the coupling position.

[0035] In one embodiment, the handle portion has an (additional) engagement portion for engaging in an associated engagement opening of one of the coupling elements in the coupling position. The connecting link is guided, for example, on one of the coupling elements. In the coupling position, the engagement portion engages with an engagement opening on the other of the coupling elements, so that a coupling between the coupling elements is established via the engagement portion on the handle portion. In the release position, however, the engagement portion is disengaged from the engagement opening, so that the coupling elements can be adjusted independently of one another.

[0036] In one embodiment, the coupling device can be used to establish a connection between exactly two adjacent disconnect terminals. In this case, each coupling element of a switching device is assigned to one of the disconnect terminals.

[0037] In another embodiment, however, a coupling between more than two adjacent disconnect terminals can also be established via the coupling device. In this case, the first coupling element is assigned, for example, to a first of the disconnect terminals, while the second coupling element is assigned jointly to the remaining disconnect terminals.

[0038] In one embodiment, the at least two isolating terminals each have a locking device for arranging the at least two isolating terminals on a mounting rail. The isolating terminals can be combined with one another on the mounting rail and aligned in a row along the mounting rail. The isolating terminals can also be combined with other electrical or electronic components on the mounting rail, for example, measuring transformers, terminal blocks, and / or through-type terminals.

[0039] The concept underlying the invention will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. They show: Fig. 1 a view of an embodiment of a disconnect terminal arrangement with two disconnect terminals; Fig. 2 a view of the disconnect terminal arrangement according to Fig. 1 , in a different switching position of switching devices of the isolating terminals; Fig. 3 a view of the isolating terminal arrangement, with separate switching of the switching devices; Fig. 4 an exploded view of a coupling device for coupling the switching devices; Fig. 5 another exploded view of the coupling device; Fig. 6 a view of the coupling device, in a coupling position; Fig. 7 a view of another embodiment of a coupling device; Fig. 8 a sectional view of the arrangement according to Fig. 6 ; Fig. 9 a partial sectional view of the arrangement according to Fig. 7; Fig. 10 a view of the coupling device according to Fig. 4 to 6 , when unlocking; Fig. 11 the coupling device according to Fig. 10 , in an unlocked position; Fig. 12 a sectional view through the arrangement according to Fig. 11 , in the unlocked position; Fig. 13 a separate view of a connecting link of the coupling device; Fig. 14 another view of the connecting link; Fig. 15 a frontal view of the arrangement according to Fig. 11 ; Fig. 16 a sectional view along the line AA according to Fig. 15 ; Fig. 17 a partial enlargement of the view according to Fig. 16 ; Fig. 18 a frontal view of the arrangement according to Fig. 6 ; Fig. 19 a sectional view along the line BB according to Fig. 18 ; Fig. 20 a partial enlargement of the view according to Fig. 19 ; Fig. 21 a view of a coupling device according to another embodiment; and Fig. 22 an exploded view of the coupling device according to Fig. 21 .

[0040] Fig. 1 shows an embodiment of a isolating terminal arrangement 1, which in the illustrated embodiment has two isolating terminals 2, 3.

[0041] The isolating terminals 2, 3 each have a housing 20, 30 and are attached to one another along a row direction A. The isolating terminals 2, 3 can be arranged together, for example on a mounting rail 5, via latching devices 202 on the housings 20, 30 in order to fasten the isolating terminals 2, 3 to the mounting rail 5 and, if necessary, to combine them with other electrical or electronic assemblies, for example, other isolating terminals, measuring transformers, terminal blocks, or through-type terminals.

[0042] Each isolating terminal 2, 3 has (at least) a first terminal 200, 300 on a first side and (at least) a second terminal 201, 301 on a second side. The terminals 200, 300, 201, 301 can each be configured, for example, as spring-loaded terminals to enable the connection of an electrical line to one of the terminals 200, 300, 201, 301 while electrically contacting the current bars enclosed in the respective housing 20, 30.

[0043] Each isolating terminal 2, 3 has a switching device 21, 31, which can be implemented, for example, by a switching lever or a so-called isolating blade. Each switching device 21, 31 can be switched along an actuating direction B between a first switching position ( Fig. 2 ) and a second switching position ( Fig. 1) in order, for example, to electrically connect the first connection 200, 300 and the second connection 201, 301 of the respective isolating terminal 2, 3 in the first switching position and to electrically separate the first connection 200, 300 and the second connection 201, 301 in the second switching position.

[0044] Via such isolating terminals 2, 3, a switchable connection can be established, for example, to a measuring transformer, via which a current and / or voltage conversion can be carried out in order, for example, to connect a measuring device to an electrical system, for example a power supply system.

[0045] In the illustrated embodiment, the switching devices 21, 31 are each pivotable about an associated pivot axis S relative to the housing 20, 30 of the associated isolating terminal 2, 3, in order to move the switching devices 21, 31 between the different switching positions. The pivot axis S is common to the isolating terminals 2, 3, so that the switching devices 21, 31 can be moved parallel to one another about the common pivot axis S, as can be seen from Fig. 1 and 2 is evident.

[0046] In conventional instrument transformer systems, it is normally sufficient to jointly switch switching devices 21, 31 of mutually assigned isolating terminals 2, 3. For this reason, a coupling device can be offered, for example, as an accessory for such isolating terminals 2, 3, which is designed to mechanically couple the switching devices 21, 31 of adjacent isolating terminals 2, 3 to one another, so that in the coupled position the switching devices 21, 31 can be uniformly switched together, as can be seen from Fig. 1 and 2 is evident.

[0047] For example, for control measurements, it may be necessary to switch the switching device 21, 31 of a single isolating terminal 2, 3 individually, as shown in Fig. 3For this reason, the coupling device is designed such that in a coupling position a coupling is established between the switching devices 21, 31, but this coupling is canceled in a release position, so that separate switching of the switching devices 21, 31 is also possible.

[0048] In the illustrated embodiment, the coupling device has two coupling elements 22, 32, each of which is connected to one of the switching devices 21, 31 and can be coupled to or decoupled from one another via a connecting member 4.

[0049] Referring now to Fig. 4 to 6, the coupling elements 22, 32 can each be plugged onto one of the switching devices 21, 31 and thus connected to the respectively assigned switching device 21, 31. Each coupling element 22, 32 has a body 220, 320 and a plug-in shaft 221, 321 formed thereon, via which the respective coupling element 22, 32 can be plugged onto the assigned switching device 21, 31 and thus connected to the switching device 21, 31 in a locking manner.

[0050] In the illustrated embodiment, the coupling elements 22, 32 are to be attached to the switching devices 21, 31 as accessory elements. It should be noted that, in principle, it is also conceivable to design coupling elements of the type described, for example, fixed and non-detachable, for example, integrally with the switching devices 21, 31, for example, integrally with the switching levers of the switching devices 21, 31.

[0051] In the illustrated embodiment, the connecting link 4 is accommodated and guided in a guide opening 322 of the coupling element 32 via an adjusting body 40 so as to be displaceable along the alignment direction A. The adjusting body 40 has the shape of a cylindrical bolt body. In a release position, the adjusting body 40 is pushed into the guide opening 322 along the alignment direction A and thus does not protrude, or only protrudes insignificantly, from the guide opening 322 in the direction of the other coupling element 22. In a coupling position, shown in Fig. 6 , the connecting member 4 is displaced out of the guide opening 322 and engages with the adjusting body 40 in an associated engagement opening 222 on the coupling element 22, as can be seen from Fig. 6 in conjunction with the sectional view according to Fig. 8 is evident.

[0052] A locking element 43 is formed on the adjusting body 40 and projects radially from the cylindrical adjusting body 40. The locking element 43 serves as a loss protection in that the locking element 43 is in one of the coupling positions according to Fig. 6 and 8 corresponding position against an associated locking section 324 of the coupling element 32, which limits the guide opening 322 in the direction of the other coupling element 22 and thus, in cooperation with the locking element 43, prevents the connecting member 4 from sliding out of the guide opening 322 of the coupling element 32 beyond the coupling position, as can be seen in particular from Fig. 8 is evident.

[0053] In the coupling position, the adjusting body 40 engages positively in the engagement opening 222 of the other coupling element 22 and thus establishes a positive coupling between the coupling elements 22, 32, so that the coupling elements 22, 32 and, via them, the associated switching devices 21, 31 can be switched exclusively together. If, in the release position, the connecting member 4 is retracted into the guide opening 322, the positive engagement of the connecting member 4 with the engagement opening 222 of the coupling element 22 is canceled, so that the coupling elements 22, 32 are mechanically separated from one another and the switching devices 21, 31 are thus decoupled from one another. The switching devices 21, 31 can thus be switched separately from one another, as can be seen from Fig. 3 is evident.

[0054] The connecting link 4 has a grip portion 41 which projects radially towards the adjusting body 40 and forms a locking portion 411. The grip portion 41 is, as can be seen from Fig. 5 can be seen, is connected to the adjusting body 40 via a connecting web 410 and, with the locking section 411, delimits a connecting opening 42 which serves to lock the connecting member 4 in the coupling position.

[0055] In the region of the mouth of the guide opening 322 on the one hand and the mouth of the engagement opening 222 on the other hand, each coupling element 22, 32 has a locking element 223, 323 in the form of a nose pointing along a circumferential direction, which serves to lock the connecting member 4 in the coupling position by engaging in the connection opening 42 on the connecting member 4.

[0056] The connecting member 4 is rotatably mounted about a rotational axis D relative to the coupling elements 22, 32, in that the adjusting body 40 is rotatably received in the guide opening 322 and (in the coupling position) the engagement opening 222. As a result, the connecting member 4 can be moved between a first rotational position, shown in Figs. 4 and 5 , and a second rotational position, shown in Fig. 6 , relative to the coupling elements 22, 32.

[0057] In the first rotation position according to Figs. 4 and 5 the connecting member 4 can be transferred from the release position into the coupling position and thus inserted from the guide opening 322 on the coupling element 32 into the engagement opening 222 on the coupling element 22.

[0058] If the connecting link 4 is in the coupling position, the connecting link 4 can be moved from the first rotational position ( Figs. 4 and 5 ) in a locking direction V in the Fig. 6 and 8shown second rotational position. When pivoting into the second rotational position, the locking elements 223, 323 at the mouth of the guide opening 322 or the engagement opening 222 engage with the connecting opening 42 between the handle section 41 and the adjusting body 40, as can be seen from the sectional view according to Fig. 8 is visible, so that the connecting link 4 is positively locked and cannot be moved out of the coupling position along the alignment direction A, at least not without releasing the lock.

[0059] In the second rotation position according to Fig. 6 and 8 The connecting link 4 is thus locked and secured in its axial position with the coupling elements 22, 32. The coupling elements 22, 32 are thus coupled to one another via the connecting link 4.

[0060] If the coupling device is to be uncoupled again, the connecting link 4 is rotated back in the direction of the first rotational position against the locking direction V about the rotational axis D and pushed back into the guide opening 322 along the alignment direction A, so that the adjusting body 40 is disengaged from the engagement opening 222 and the coupling is thus canceled.

[0061] This is in Fig. 10 to 12 Thus, in order to decouple the coupling elements 22, 32 from each other, the connecting member 4 is first moved in an unlocking direction E1 opposite to the adjustment direction V about the rotation axis D from the second rotational position according to Fig. 6 into the Fig. 10shown, first rotational position, so that the connecting web 410 formed between the locking section 411 and the adjusting body 40 is disengaged from the locking element 223 on the body 22 of the coupling element 22. Then, the connecting member 4 can be rotated in an unlocking direction E2 pointing along the rotational axis D, shown in Fig. 11 , axially displaced in the guide opening 322 on the body 320 of the coupling element 32, so that the connecting member 41 with the adjusting body 40 is disengaged from the engagement opening 222 on the coupling element 22.

[0062] After the connecting member 4 has been pushed linearly out of engagement from the engagement opening 222 on the coupling element 22 in the unlocking direction E2, the connecting member 4 can be adjusted in an unlocking direction E3 rotationally about the rotation axis D to the body 320 of the coupling element 32, so that a recess 413 on the connecting web 410, as can be seen from the separate views of the connecting member 4 according to Figs. 13 and 14 , is brought into engagement with the locking element 323 on the body 320 of the coupling element 32.

[0063] In the Fig. 11 and 12In the release position shown, the coupling elements 22, 32 are decoupled from one another. The locking element 323 engages in the recess 413 on the connecting web 410, so that the connecting link 4 is locked to the coupling element 32 along the alignment direction A and thus cannot be moved out of the release position, at least not without actuation to rotate it about the rotation axis D.

[0064] On the inside of the locking section 411, as can be seen from the separate views of the connecting member 4 according to Figs. 13 and 14 As can be seen, a locking device 412 is formed in the form of a radially inwardly projecting locking web. The locking device 412 serves to lock the connecting member 4 with respect to a circumferential direction pointing around the rotation axis D relative to the coupling element 32 in the coupling position and in the release position.

[0065] Thus, the locking device 412 engages on the inside of the locking section 411 of the connecting member 4 in the release position in an associated locking device 325 on a lateral surface 326 on the body 320 of the coupling element 32, as can be seen from Figs. 16 and 17 is evident.

[0066] The lateral surface 326 limits the guide opening 322 to the outside.

[0067] The locking device 325 on the outer surface 326 is formed by two locking grooves extending parallel along the alignment direction A. In the release position, the connecting link 4 engages with the locking device 412 in the form of the locking web in a lower locking groove 328 of the locking device 325 on the outer surface 326 of the coupling element 32, as can be seen from Figs. 16 and 17 is visible, so that the connecting link 4 is axially locked and rotationally locked in the release position.

[0068] If the connecting link 4 is to be adjusted again into the coupling position in order to couple the coupling elements 22, 32 to one another, the connecting link 4 is first moved against the unlocking direction E3 according to Fig. 11 on the coupling element 32, whereby the locking device 412 is brought into engagement with a second, upper locking groove 329 of the locking device 325. The locking element 323 of the coupling element 32 thus no longer engages in the recess 413 on the connecting web 410, so that the connecting member 4 can be displaced axially along the alignment direction A on the coupling element 32 and brought into engagement with the engagement opening 222 on the coupling element 222.

[0069] If the connecting link 4, after it has been inserted into the engagement opening 222 on the coupling element 22, is pivoted in the adjustment direction V and thus into the coupling position according to Fig. 6brought, the locking device 412 engages on the inside of the locking section 411 with a further locking device 226 in the form of a locking groove on the locking element 223 of the coupling element 22, so that the connecting member 4 is locked in the coupling position relative to the coupling element 22 and is thus locked in its rotational position, as shown in Figs. 19 and 20 is shown.

[0070] The locking of the locking devices 412, 325, 226 can be released by applying a sufficient force so that the connecting link 4 can be manually adjusted between the release position and the coupling position.

[0071] In the Fig. 1 to 3 The embodiment of the isolating terminal arrangement 1 shown in FIG. 1 are connected to the Fig. 4 to 6 and 8 The switching devices 21, 31 of the two adjacent isolating terminals 2, 3 can be coupled to one another using the coupling device shown.

[0072] It is also conceivable to connect more than two isolating terminals to one another via a coupling device. For this purpose, as shown in one embodiment in Fig. 7 and 9 As shown, a coupling element 22 can be assigned, for example, to a single isolating terminal, while a further, second coupling element 32 is assigned to several further isolating terminals. The switching device of a first isolating terminal can thus be coupled to the switching devices of several further, second isolating terminals and also decoupled from these switching devices.

[0073] Otherwise, the embodiment is according to Fig. 7 and 9 functionally, in particular with regard to the design of the connecting link 4 and the establishment of the coupling via the connecting link 4, identical to that described above with reference to Fig. 4 to 6 and 8 described embodiment.

[0074] In another, in Figs. 21 and 22The embodiment shown has a coupling device for coupling switching devices 21, 31 of isolating terminals (analogous to the isolating terminals 2, 3 according to Fig. 1 to 3 ) coupling elements 22, 32 and a connecting link 4.

[0075] Each coupling element 22, 32 has, analogously to what has been described above, a body 220, 320 and a plug-in shaft 221, 321 formed thereon for plugging into a respective associated switching device 21, 31 of the isolating terminals.

[0076] In the illustrated embodiment, a connecting member 4 is displaceably guided on the coupling element 32, which in a Fig. 21 In the release position shown, the coupling elements 22, 32 are decoupled from one another and can be displaced along the alignment direction A on the body 320 of the coupling element 32 in order to establish a coupling between the coupling elements 22, 32 in a coupling position.

[0077] As can be seen from the exploded view according to Fig. 22 As can be seen, the connecting member 4 has an adjusting body 40 which is slidably received in a guide opening 322 on the body 320 of the coupling element 32 and creates a sliding guide along the alignment direction A relative to the coupling element 32.

[0078] A handle section 41 protrudes from the adjusting body 40 transversely to the alignment direction A, which a user can grip, for example using a tool, in order to thereby adjust the connecting link 4 along the alignment direction A.

[0079] In the illustrated embodiment, engagement sections 400, 401 are formed on both the adjusting body 40 and the handle section 41, which, in the coupling position, each engage in an associated engagement opening 222, 224 on the body 220 of the coupling element 22 and thus establish a positive coupling between the coupling elements 22, 32.

[0080] The engagement portion 400 is approximately conical in shape.

[0081] On the engagement portion 401, which protrudes axially from the handle portion 41, locking elements 402 in the form of transversely projecting locking lugs are formed on both sides. In the coupling position, these locking elements engage with edge portions 225 that laterally delimit the engagement opening 224 on the coupling element 22. The locking elements 402 on the engagement portion 401 thus lock the connecting link 4 in the coupling position against movement along the alignment direction A, so that the coupling between the coupling elements 22, 32 cannot be easily, or at least not automatically, released.

[0082] The locking engagement of the locking elements 402 with the edge sections 425 can, for example, be such that the locking engagement can be released upon application of a sufficiently large force, so that the connecting member 4 can be brought back into the release position by applying force and the coupling elements 22, 32 can thus be decoupled from one another.

[0083] The idea underlying the invention is not limited to the embodiments described above, but can also be implemented in other ways.

[0084] A coupling device of the type described can be used for coupling two or more isolating terminals, wherein the coupling device in particular also enables the coupling to be released and thus switching of switching devices of isolating terminals independently of one another.

[0085] Disconnect terminals of a disconnect terminal assembly can be used, for example, to switchably connect instrument transformers to a higher-level electrical system, such as a power supply system, to enable test measurements on such a system. However, a disconnect terminal assembly of the type described can also be used for other purposes in electrical systems.

[0086] Each isolating terminal may have one or more primary side terminals and one or more secondary side terminals.

[0087] The connections can be realized by spring-loaded connections, screw connections or other types of connections. List of reference symbols

[0088] 1Trennclamanordnung 2Trennclipme 20Gehäuse 200, 201Anschluss 202Rasteinrichtung 21Schalteinrichtung (Trennmesser) 22Kopplungselement 220Körper 221Steckschaft 222Eingriffsöffnung 223Verriegelungselement 224Eingriffsöffnung 225Randabschnitt 226Rasteinrichtung 3Trennklemme 30Gehäuse 300, 301Anschluss 31Schalteinrichtung (Trennmesser) 32Kopplungselement 320Körper 321Steckschaft 322Führungsöffnung 323Verriegelungselement 324Steg 325Rasteinrichtung 326Mantelfläche 328, 329Rastnut 4Verbindungsglied 40Verstellkörper 400, 401Eingriffsabschnitt 402Rastelement 41Griffabschnitt 410Verbindungssteg 411Sperrabschnitt 412Rasteinrichtung 413Aussparung 42Verriegelungsöffnung 43Sperrelement 5Tragschiene AAnreihrichtung BBetätigungsrichtung DDrehachse E1, E2Entriegelungsrichtung SSchwenkachse VVerriegelungsrichtung

Claims

1. Isolating terminal arrangement (1), comprising at least two isolating terminals (2, 3), which are lined up with each other along a lining-up direction (A) and each have at least one first electrical connection (200, 300), at least one second electrical connection (201, 301) and a switching device (21, 31), wherein the switching device (21, 31) of each of the at least two isolating terminals (2, 3) can be switched between a first switching position, in which the at least one first electrical connection (200, 300) and the at least one second electrical connection (201, 301) are electrically connected to each other, and a second switching position, in which the at least one first electrical connection (200, 300) and the at least one second electrical connection (201, 301) are electrically isolated from each other, and a coupling device for mechanically coupling the switching devices (21, 31) of the at least two isolating terminals (2, 3) in order to operate the switching devices (21, 31) together, wherein the coupling device has a first coupling element (22), which is assigned to the switching device (21, 31) of a first of the at least two isolating terminals (2, 3), a second coupling element (32), which is assigned to the switching device (21, 31) at least of a second of the at least two isolating terminals (2, 3), and a connecting member (4), wherein the connecting member (4) is adjustable relative to the first coupling element (22) and the second coupling element (32) along the lining-up direction (A) in order to couple the first coupling element (22) and the second coupling element (32) to each other for operating the switching devices (21, 31) of the at least two isolating terminals (2, 3) together in a coupling position and not to couple the first coupling element (22) and the second coupling element (32) to each other in order to separately operate the switching devices (21, 31) of the at least two isolating terminals (2, 3) in a release position, characterized in that, in the coupling position, the connecting member (4) can be rotated between a first rotation position and a second rotation position to the first coupling element (22) and the second coupling element (32) about a rotation axis (D) pointing along the lining-up direction (A).

2. Isolating terminal arrangement (1) according to Claim 1, characterized in that the switching devices (21, 31) of at least two isolating terminals (2, 3) can each be pivoted about a pivot axis (S) that is common to the switching devices (21, 31) for switching between the first switching position and the second switching position.

3. Isolating terminal arrangement (1) according to Claim 1 or 2, characterized in that the first coupling element (22) is fixedly or releasably connected to the switching device (21, 31) of the first of the at least two isolating terminals (2, 3) and the second coupling element (32) is fixedly or releasably connected to the switching device (21, 31) of the at least one second of the at least two isolating terminals (2, 3).

4. Isolating terminal arrangement (1) according to any of Claims 1 to 3, characterized in that the connecting member (4) has an adjusting body (40), which is mounted adjustably along the lining-up direction (A) in a guide opening (322) in one of the first coupling element (22) and the second coupling element (32).

5. Isolating terminal arrangement (1) according to Claim 4, characterized in that the adjusting body (40) is in the form of a cylindrical bolt body (40), which is guided in the guide opening (322).

6. Isolating terminal arrangement (1) according to Claim 4 or 5, characterized in that the connecting member (4) has a blocking element (43), which blocks the connecting member (4) from moving out of the guide opening (322) beyond the coupling position.

7. Isolating terminal arrangement (1) according to any of Claims 4 to 6, characterized in that the connecting member (4) engages into an engagement opening (222, 224) in the other of the first coupling element (22) and the second coupling element (32) in the coupling position and does not engage into the engagement opening (222, 224) in the other of the first coupling element (22) and the second coupling element (32) in the release position.

8. Isolating terminal arrangement (1) according to Claim 7, characterized in that the connecting member (4) has a latching element (402) for latching in the engagement opening (222, 224) in order to block the connecting member (4) from moving out of the engagement opening (222, 224) along the lining-up direction (4).

9. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that the connecting member (4) can be moved out of the coupling position along the lining-up direction (A) in the first rotation position and is locked in the second rotation position such that the connecting member (4) cannot be moved out of the coupling position along the lining-up direction (A).

10. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that the connecting member (4) is positively locked with reference to the lining-up direction (A) in the second rotation position.

11. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that at least one of the first coupling element (22) and the second coupling element (32) has a locking element (223, 323), wherein the connecting member (4) has a blocking portion (411), which engages with the locking element (223, 323) in the second rotation position.

12. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that the connecting member (4) has a first latching device (412), which latches with a second latching device (325) of the second coupling element (32) in the release position.

13. Isolating terminal arrangement (1) according to Claim 12, characterized in that the connecting member (4) is latched to a third latching device (226) of the first coupling element (22) and / or the second coupling element (32) via the first latching device (412) in the coupling position.

14. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that the connecting member (4) has a handle portion (41) for operation by a user.

15. Isolating terminal arrangement (1) according to Claim 14, characterized in that the handle portion (41) has an engagement portion (401) for engaging into an associated engagement opening (224) in one of the first coupling element (22) and the second coupling element (32) in the coupling position.

16. Isolating terminal arrangement (1) according to any of the preceding claims, characterized in that the at least two isolating terminals (2, 3) each have a latching device (202) for arranging the at least two isolating terminals (2, 3) on a support rail (5).

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