DE202017006110U1 - Voltage tap - Google Patents

Abstract

A device (10) for sensing the potential of a bus bar (100), comprising: a first device part (12) having a first insulating housing (12a) and a first conductive structure (12b) extending through the first insulating housing (12a); (16) having a second insulating housing (16a) and a second conductive structure (16b) extending through the second insulating housing (16a); wherein the first conductive structure (12b) terminates in a first conductive terminal (18) adapted to be applied to the busbar (100) and to establish an electrical connection between the first conductive structure (12b) and the busbar (100); second conductive structure (16b) opens into a second conductive connecting element of a clamping point (22a), which is used for inserting a conductor (200) against a clamping force, which is applied to the clamping point (22a), and for establishing an electrical connection between the second conductive The second device part (16) is mounted so as to be rotatable around a rotation axis (14) in the first device part (12); and the first conductive structure (12b) is electrically connected to the second conductive structure (16b).

Description

TERRITORY

The present invention relates to a device for sensing the potential of a busbar.

BACKGROUND

From the DE 20 2017 100 282 U1 For example, a busbar clamp with spring-loaded technology is known. The busbar alligator clip has a clamping body arranged in a housing with a hook-shaped extension and means for electrically conductive contacting of a busbar. The busbar alligator clip can be fixed to the busbar by means of a clamping device comprising the extension in its function as a stop. The busbar tapping terminal further includes vertically extending conductor insertion openings and tool insertion openings extending parallel to the conductor insertion openings.

SUMMARY

The invention enriches in this regard the prior art, as a device according to the invention for tapping the potential of a busbar horizontally extending Leitereinführöffnungen which are arranged in a second device part, which is rotatably mounted in a first, can be clamped to the busbar device part.

A device according to the invention for tapping the potential of a busbar has a first device part with a first insulating housing and a first conductive structure extending through the first insulating housing and a second device part with a second insulating housing and a second conductive structure extending through the second insulating housing. The first conductive structure terminates in a first conductive terminal configured to be applied to the busbar and to establish an electrical connection between the first conductive structure and the busbar. The second conductive structure terminates in a second conductive terminal of a nip, which is adapted for insertion of a conductor against a clamping force, which is applied to the nip, and for establishing an electrical connection between the second conductive structure and the conductor. The second device part is rotatably mounted about an axis of rotation in the first device part. The first conductive structure is electrically connected to the second conductive structure.

In this case, the term "busbar" as used in the description and claims, in particular a power bus from metal (eg. Copper, aluminum, etc.) to understand, for example, has a rectangular or square cross-section. Furthermore, the term "insulating housing", as used in the description and the claims, in particular a housing of an insulating material (eg. From a non-conductive plastic) to understand. Furthermore, the term "conductive structure", as used in the description and the claims, in particular a metallic component or a plurality of electrically interconnected metallic components to understand.

Further, the phrase "conductive terminal for application to the busbar" as used in the specification and claims means, in particular, a U-shaped or hook-shaped member made of a conductive material adapted to be clamped to the busbar (For example, by employing a clamping screw arranged in the U-shaped connecting element against the busbar, or by fastening a clamping screw arranged on the busbar in the eye of the hook-shaped component). By clamping an electrically conductive connection between the first conductive structure and the collection notes can be generated. In addition, the term "conductive connection element of a terminal point", as used in the description and the claims, in particular a spring terminal (also called cage clamp, cage clamp or spring cage terminal) to understand.

Preferably, the clamping point is acted upon by a bias of an elastic member with the clamping force.

For example. the clamping point can be acted upon by a spring force terminal with a clamping force.

Preferably, the elastic member is formed as a leaf spring and the free end of the leaf spring forms a directed against the conductor clamping edge.

Preferably, the free end of the leaf spring is exposed directed against the electrical conductor to form the clamping edge. This results in an optimized clamping connection, since the clamping edge can be clawed by the employed clamping angle in an optimized manner with the electrical conductor.

Preferably, the second insulating material housing for opening the nip on an actuator or a recess, which make it possible to apply the elastic member with a force.

For example. the insulating material housing can have an actuating lever mounted in the insulating housing or a recess through which an actuating tool for opening the clamping point can be guided against the spring-loaded terminal.

Preferably, the first conductive structure is connected to the second conductive structure via an overcurrent protection device disposed in the device.

For example. can the overcurrent protection device in a z. B. be sealed with a screw cap recess of the device, wherein on the walls of the recess contact surfaces of the first and the second conductive structure may be arranged, wherein the contact surfaces are electrically connected via the overcurrent protection device.

Preferably, a first portion of the overcurrent protection device in the first housing and a second portion of the overcurrent protection device in the second housing housed.

For example. For example, the overcurrent protection device may have an elongated and, in particular, a cylindrical main body which is arranged in the housing parts which overlap in the longitudinal direction of the main body. This makes it possible to keep the overall height of the device parts low, since each housing einhaust only a portion of the overcurrent protection device.

Preferably, the overcurrent protection device is arranged in a recess of the device, which is coaxial with the axis of rotation.

Preferably, a first terminal surface of the overcurrent protection device is applied to a tip of a projection of the first or second conductive structure, through which the axis of rotation passes, and / or on a grafted pad of the first or second conductive structure, and / or is a first pad of the overcurrent protection device arranged in a, embossed in a pad of the first or second conductive structure sink.

Preferably, a second cylinder jacket-shaped terminal surface of the overcurrent protection device is conductively connected to the first and the second conductive structure by means of a conductive element arranged between the second cylinder jacket-shaped terminal surface and an inner side of a cylindrical recess of the first or second conductive structure.

Preferably, the second device part is detachable from the first device part.

For example. For example, a screw arranged in a recess of the second device part can be screwed or screwed into a thread in the first device part.

Preferably, the first device part is adapted to be clamped by a screw to the busbar.

Preferably, the second insulating material housing comprises a receptacle for inserting a flexible strip of material, wherein the receptacle is arranged on one side of the second insulating material housing, on which a viewing window is provided for checking the overcurrent protection device, and / or which runs parallel to a direction of insertion of the conductor.

list of figures

• 1 perspektivische Ansichten einer Vorrichtung zum Abgreifen des Potenzials einer Sammelschiene, gemäß einer ersten Ausführungsform;
• 1a eine Seitenansicht der in 1 gezeigten Vorrichtung;
• 1b eine Vorderansicht der in 1 gezeigten Vorrichtung;
• 1c eine Draufsicht auf die in 1 gezeigte Vorrichtung;
• Fig: 1d eine vergrößerte Seitenansicht auf die in 1 gezeigte Vorrichtung mit einer schematischen Illustration des Innenaufbaus der Vorrichtung, gemäß eines ersten Beispiels;
• 1e eine vergrößerte Seitenansicht auf die in 1 gezeigte Vorrichtung mit einer schematischen Illustration des Innenaufbaus der Vorrichtung, gemäß eines zweiten Beispiels;
• 2 perspektivische Ansichten einer Vorrichtung zum Abgreifen des Potenzials einer Sammelschiene, gemäß einer zweiten Ausführungsform;
• 2a eine Seitenansicht der in 2 gezeigten Vorrichtung;
• 2b eine Draufsicht auf die in 2 gezeigte Vorrichtung;
• 3 perspektivische Ansichten einer Vorrichtung zum Abgreifen des Potenzials einer Sammelschiene, gemäß einer dritten Ausführungsform;
• 3a eine Seitenansicht der in 3 gezeigten Vorrichtung;
• 3b eine Draufsicht auf die in 3 gezeigte Vorrichtung zeigt.

The invention will be explained in more detail in the detailed description on the basis of exemplary embodiments, reference being made to drawings in which:

• 1 perspective views of a device for detecting the potential of a busbar, according to a first embodiment;
• 1a a side view of in 1 shown device;
• 1b a front view of in 1 shown device;
• 1c a top view of the in 1 shown device;
• FIG. 1 d shows an enlarged side view of FIGS 1 shown device with a schematic illustration of the internal structure of the device, according to a first example;
• 1e an enlarged side view of the in 1 shown device with a schematic illustration of the internal structure of the device, according to a second example;
• 2 perspective views of a device for detecting the potential of a busbar, according to a second embodiment;
• 2a a side view of in 2 shown device;
• 2 B a top view of the in 2 shown device;
• 3 perspective views of a device for detecting the potential of a busbar, according to a third embodiment;
• 3a a side view of in 3 shown device;
• 3b a top view of the in 3 shown device shows.

In the drawings, identical or functionally identical elements are identified by the same reference numerals.

DETAILED DESCRIPTION

1 . 1a . 1b and 1c show views of a device 10 with a first device part 12 and one in the first device part 12 around an axis 14 rotatably mounted second device part 16 , Both device parts 12 . 16 have an insulating material housing 12a . 16a and a through the insulating material 12a . 16a extending conductive structure 12b . 16b on.

The conductive structure 12b of the first device part 12 opens into a first conductive connection element 18 , The first conductive connection element 18 is for application to a busbar 100 (as in 1d and 1e shown) and for establishing an electrical connection between the conductive structure 12b of the first device part 12 and the busbar 100 set up. As in 1 and 1a shown has the first conductive connection element 18 the shape of a "U" s. A first thigh 18a of the "U" has a profiled surface (eg a surface with a sawtooth profile). A second leg 18b of the "U" s has a recess (for example. A through hole), which is provided with an (internal) thread.

For clamping the first device part 12 at the busbar 100 may be the first conductive connection element 18 , as in 1d and 1e shown on the busbar 100 pushed and a screw engaging in the thread 20 (For example, a grub screw) against the collection notes 100 be hired, causing the profiled surface against the busbar 100 is pressed. The contact pressure causes the protruding areas of the profiled surface to be in the busbar 100 dig. This creates a conductive connection between the first conductive terminal 18 and the busbar 100 and also prevents slippage of the device 10 relative to the collection notes 100 , The screw 20 may also be provided with a tapered tip, which occurs when adjusting the screw 20 against the collection notes 100 also buried in this and a conductive connection between the first conductive connection element 18 and the busbar 100 generated.

The conductive structure 16b of the second device part 16 opens into a second conductive connection element of a clamping point 22a , The nip 22a is by a bias of an elastic member 22 acted upon in the form of a spring terminal with a clamping force and for inserting a conductor 200 set up against the clamping force. The tip of the elastic component 22 digs due to the bias and the insertion of the conductor 200 caused deflection in the ladder 200 and thereby provides an electrical connection between the conductive structure 16b of the second device part 16 and the leader 200 ago. Above the opening, which is used to insert the conductor 200 is provided, moreover, as in 1b shown, a recess provided, which allows the elastic member 22 for opening the nip 22a to apply a force through which the tip of the elastic member 22 from the surface of the conductor 200 is solved. As shown, the device can 10 have several, in particular two identical connections.

At one parallel to the insertion direction 24 of the leader 200 extending side of the second device part 16 is a recording 26 for inserting one or more flexible strips of material for labeling the nip 22 arranged. The recording 26 has an undercut profile, which is used for inserting profiled strips of material transversely to the insertion direction 24 of the conductor 200 is set up. In a modification of the embodiment shown, the recording 26 removable, relative to the insulating material housing 16a be rotatable or displaceable and / or backlit.

The conductive structure 12b is with the conductive structure 16b about one in the device 10 arranged overcurrent protection device 28a electrically connected. The overcurrent protection device 28a is in a recess 28 the device 10 arranged. The overcurrent protection device 28a can, as in 1d shown, only or substantially in the second insulating material 16a be housed. The overcurrent protection device 28a However, as in 1e shown in the first insulating material 12a and in the second insulating housing 16a be housed. This means that a first section of the overcurrent protection device 28a in the first insulating material housing 12a and a second section of the overcurrent protection device 28a in the second insulating material housing 16a can be housed.

To change the overcurrent protection device 28a is the second insulating material housing 16a with a removable cover 30 Provided. The lid 30 has one (perpendicular to the axis of rotation 14 arranged) transparent use (window), by means of which the state of the overcurrent protection device 28a with closed insulating housing 16a can be checked.

The overcurrent protection device 28a may also have a cylindrical shape, wherein an end face of the overcurrent protection device 28a on a (conductive) screw connection 28b (as in 1d shown) or on the first conductive connection element 18 (as in 1e shown) of the conductive structure 12b is applied. For example. can the end face at a tip of a survey of a screw (the screw 28b) or the first conductive connection element 18 abut, wherein the axis of rotation 14 passes through the top of the survey. Furthermore, the end face on a finished connection surface of the screw (the screw connection 28b) or the first conductive connection element 18 issue. Furthermore, the end face in one, in the connection surface of the screw (the screw connection 28b) or the first conductive connection element 18 embossed depression can be arranged.

To ensure a good electrical connection, can in the lid 30 a spring may be arranged, which the overcurrent protection device 28 on the conductive structure 12b suppressed. In addition, the second device part 16 from the first device part 12 be solvable. For example. may be the release of the second device part 16 from the first device part 12 by loosening the in 1d shown screwed connection 28b respectively.

The recess 28 the device 10 is coaxial with the axis of rotation 14 arranged. Here is a cylinder jacket-shaped pad of the overcurrent protection device 28a by means of a conductive element 32 , which between the cylinder jacket-shaped pad and an inside of the cylindrical recess 28 the conductive structure 16b is arranged with the conductive structure 16b electrically connected. The conductive element 32 may be formed, for example, as a metal piece, which makes it possible, the overcurrent protection device 28a (and possibly the spring) in the lid 30 clamp, so that in the screwed state, a metallic thread of the lid 30 both with the conductive element 32 as well as with the conductive structure 16b electrically connected.

2 . 2a and 2 B show views of a modified device 10 that differ from the in 1 . 1a . 1b . 1c . 1d and 1e shown devices 10 by a modified first device part 12 different. The modified first device part 12 is different from the one in 1 . 1a . 1b . 1c . 1d and 1e shown first device part 12 in particular in that the first conductive connection element 18 instead of the shape of a "U" s, having the form of a hook, wherein when clamping the first device part 12 at the busbar 100 the hook is guided around a screw, which in the tightened state, the hook bow against the busbar 100 suppressed.

3 . 3a and 3b show views of a modified device 10 that differ from the in 2 . 2a and 2 B shown device 10 , by a modified first device part 12 different. The modified first device part 12 is different from the one in 2 . 2a and 2 B shown first device part 12 by the size of the hook. The ability to use different size hooks is favored by the fact that the hook of the device 10 is solvable. The hook can, for example, be releasable in that one between the second device part 16 and the first device part 12 provided screw connection 28b in a thread in the base plate 34 of the hook engages, so that by removing the overcurrent protection device 28a and releasing the under the overcurrent protection device 28a lying screw connection 28b the hook from the first device part 12 can be removed. It makes it easier to use the device 10 to adapt to different screw sizes (eg M6 or M8).

LIST OF REFERENCE NUMBERS

10

device

12

device part

12a

Insulated

12b

conductive structure

14

axis of rotation

16

device part

16a

Insulated

16b

conductive structure

18

connecting element

18a

leg

18b

leg

20

screw

22

connecting element

22a

nip

24

insertion

26

admission

28

recess

28a

Overcurrent protection device

28b

screw

30

cover

32

conductive element

34

baseplate

100

bus

200

ladder

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202017100282 U1 [0002]

Claims (12)

Apparatus (10) for sensing the potential of a busbar (100), comprising: a first device part (12) having a first insulating housing (12a) and a first conductive structure (12b) extending through the first insulating housing (12a); a second device part (16) having a second insulating housing (16a) and a second conductive structure (16b) extending through the second insulating housing (16a); in which the first conductive structure (12b) terminates in a first conductive terminal (18) adapted to be applied to the busbar (100) and to establish electrical connection between the first conductive structure (12b) and the busbar (100); the second conductive structure (16b) opens into a second conductive connection element of a clamping point (22a), which is used to insert a conductor (200) against a clamping force applied to the clamping point (22a) and to establish an electrical connection between the second conductive structure (16b) and the conductor (200) is arranged; the second device part (16) is mounted rotatably about a rotation axis (14) in the first device part (12); and the first conductive structure (12b) is electrically connected to the second conductive structure (16b). Device (10) according to Claim 1 , wherein the clamping point (22a) is acted upon by a bias of an elastic member (22) with the clamping force. Device (10) according to Claim 1 or 2 wherein the elastic member (22) is formed as a leaf spring and the free end of the leaf spring forms a clamping edge directed against the conductor (200). Device (10) according to one of Claims 1 to 3 wherein the second insulating material housing (16a) for opening the nip (22a) has an actuating device or a recess, which makes it possible to apply a force to the elastic component (22). Device (10) according to one of Claims 1 to 4 wherein the first conductive structure (12b) is connected to the second conductive structure (16b) via an overcurrent protection device (28a) disposed in the device (10). Device (10) according to Claim 5 wherein a first portion of the overcurrent protection device (28a) in the first insulating housing (12a) and a second portion of the overcurrent protection device (28a) in the second insulating housing (16a) is housed. Device (10) according to Claim 5 or 6 wherein the overcurrent protection device (28a) is arranged in a recess (28) of the device (10) which is coaxial with the axis of rotation (14). Device (10) according to Claim 7 wherein a first pad of the overcurrent protection device (28a): abuts a tip of a bump of the first or second conductive structure (12b, 16b) through which the rotation axis (14) passes; and / or on a grafted pad of the first or second conductive structure (12b, 16b); and / or in a depression embossed in a pad of the first or second conductive structure (12b, 16b). Device (10) according to one of Claims 1 to 8th , wherein a second cylinder jacket - shaped terminal surface of the overcurrent protection device (28a) by means of one, between the second cylinder jacket pad and an inner side of a cylindrical recess (28) of the first or second conductive structure (12b, 16b) arranged conductive element (32) with the first or second conductive structure (12b, 16b) is conductively connected. Device (10) according to one of Claims 1 to 9 wherein the second device part (16) is detachable from the first device part (12). Device (10) according to one of Claims 1 to 10 wherein the first device part (12) is arranged to be clamped to the busbar (100) by means of a screw (20). Device (10) according to one of Claims 1 to 11 wherein the second insulating housing (16a) comprises a receptacle (26) for inserting a flexible strip of material, wherein the receptacle (26) on one side of the second insulating housing (16a) is arranged, on which a viewing window for checking the overcurrent protection device (28a) is provided is; and / or which runs parallel to a direction of insertion (24) of the conductor (200).

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