CA2376976A1 - Current-carrying connection elements for conductor tracks composed of h igh-temperature superconducting thin films - Google Patents
Current-carrying connection elements for conductor tracks composed of h igh-temperature superconducting thin films Download PDFInfo
- Publication number
- CA2376976A1 CA2376976A1 CA002376976A CA2376976A CA2376976A1 CA 2376976 A1 CA2376976 A1 CA 2376976A1 CA 002376976 A CA002376976 A CA 002376976A CA 2376976 A CA2376976 A CA 2376976A CA 2376976 A1 CA2376976 A1 CA 2376976A1
- Authority
- CA
- Canada
- Prior art keywords
- temperature superconducting
- current
- htsl
- conductor tracks
- thin films
- 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.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/68—Connections to or between superconductive connectors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/30—Devices switchable between superconducting and normal states
Abstract
The invention relates to current-carrying connecting elements for plate conductors consisting of high-temperature supraconductive thin layers, especially for resistive current-limiting devices in switchgear assemblies used for supplying and distributing energy. At least two plate conductors th at are situated one behind the other are electroconductively connected by the current-carrying connecting elements and are provided with electrical contac t surfaces for receiving current supply lines. The current-carrying connecting elements consist of high-temperature supraconductive strips (HTSL-BD) which are electroconductively connected to the high temperature supraconductive th in layers (HTSL-DS) by material and/or nonpositive fit conducting connections (LV). The approximately arch-shaped cross-sectional contour of the high temperature supraconductive strips (HTSL-BD) is adapted to the distance between the high-temperature supraconductive thin layers (HTSL-DS) to be connected. The current-carrying connecting elements and the plate conductors are constituent parts of resistive current-limiting devices in switchgear assemblies used for supplying and distributing energy.
Description
' CA 02376976 2001-12-14 Abstract Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films The invention relates to current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films, in particular for resistive current limiting devices in switchgear assemblies for electrical power supply and distribution, with at least two conductor tracks, which are arranged one behind the other, being electrically conductively connected via the current-carrying connection elements, and being provided with electrical contact surfaces for current supply lines to be applied to.
The current-carrying connection elements are in the form of high-temperature superconducting strips (HTSL-BD) which are electrically conductively connected to the high-temperature superconducting thin films (HTSL-DS) via interlocking and/or force-fitting conductive connections (LV), with the high-temperature superconducting strips (HTSL-BD) having an approximately arc-shaped cross-sectional contour which is matched to the distance between the high-temperature superconducting thin film (HTSL-DS) which are to be connected to one another.
The current-carrying connection elements and the conductor tracks are components of resistive current limiting devices in switchgear assemblies for electrical power supply and distribution.
Figure Description Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films The invention relates to current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films, in particular for resistive current limiting devices in switchgear assemblies for electrical power supply and distribution, with at least two conductor tracks, which are arranged one behind the other, being electrically conductively connected via the current-carrying connection elements, and being provided with electrical contact surfaces for current supply lines to be applied to.
Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films are known, inter alia, in particular in conjunction with resistive current limiting devices, from EP 0 829 101 B1. The current limiting devices disclosed here are composed of a number of conductor tracks, which are stacked one behind the other and are coated on both sides, owing to the relatively high voltages. The conductor tracks are formed from high-temperature superconducting thin films and are electrically connected in series at one end via the contact surfaces, by means of connecting links. The other ends of the conductor tracks are connected directly to one another via further contact surfaces passing through, and are used at the same time to hold the current supply lines. The connecting links and the current supply lines are electrically conductively connected to the contact surfaces by means of soldered, pressure or spring contacts. Depending on the nature of the contact configuration, finite resistances occur, in 1999P04097 - la -which heat is produced by the currents flowing during normal operation.
' CA 02376976 2001-12-14 Since the resistive current limiting devices, in particular, are directly connected to the circuits to be protected, a not inconsiderable amount of heat is produced by the relatively high operating currents, even if the contact and connecting resistances are low, correspondingly heating the coolant. The heat losses, which are multiplied in a corresponding manner even further, in particular as the number of conductor tracks increases, can in this case reach the same order of magnitude as the current supply losses, or may even exceed them. The undesirable heating of the coolant associated with this can be compensated for only with a large amount of complexity by means of refrigeration machines, whose efficiency is known to be poor.
The object on which the invention is based is to significantly improve the current-carrying connection elements for conductor tracks, in terms of the undesirable heating of the coolant that occurs, and to design them such that it is even reasonable to use current limiting devices for high currents. According to the invention, this is achieved by the following features:
1.1 the current-carrying connection elements are in the form of high-temperature superconducting strips, 1.2 the high-temperature superconducting strips are electrically conductively connected to the high-temperature superconducting thin films via interlocking and/or force-fitting conductive connections, and 1.3 the high-temperature superconducting strips have an approximately arc-shaped cross-sectional contour which is matched to the distance between the conductor tracks of the high-temperature superconducting thin films which are to be connected to one another.
1999P04097 - 2a -The use of high-temperature superconducting strips as the current-carrying connection elements for conductor tracks, which are electrically conductively connected to the conductor tracks of the high-temperature superconducting thin films via interlocking and/or force-fitting conductive connections, minimizes the resistance of the electrical connection, thus keeping the amount of heat introduced into the coolant correspondingly low.
Furthermore, the direct contact points between the high-temperature superconducting strips and the high-temperature superconducting thin films are not subjected to excessive heating, and hence to premature destruction.
The approximately arc-shaped cross-sectional contour of the high-temperature superconducting strips, which can also be further-processed as prefabricated components in automated production processes, allows very flexible matching to different distances between the conductor tracks.
One advantageous refinement of the invention provides the following features:
The current-carrying connection elements are in the form of high-temperature superconducting strips (HTSL-BD) which are electrically conductively connected to the high-temperature superconducting thin films (HTSL-DS) via interlocking and/or force-fitting conductive connections (LV), with the high-temperature superconducting strips (HTSL-BD) having an approximately arc-shaped cross-sectional contour which is matched to the distance between the high-temperature superconducting thin film (HTSL-DS) which are to be connected to one another.
The current-carrying connection elements and the conductor tracks are components of resistive current limiting devices in switchgear assemblies for electrical power supply and distribution.
Figure Description Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films The invention relates to current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films, in particular for resistive current limiting devices in switchgear assemblies for electrical power supply and distribution, with at least two conductor tracks, which are arranged one behind the other, being electrically conductively connected via the current-carrying connection elements, and being provided with electrical contact surfaces for current supply lines to be applied to.
Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films are known, inter alia, in particular in conjunction with resistive current limiting devices, from EP 0 829 101 B1. The current limiting devices disclosed here are composed of a number of conductor tracks, which are stacked one behind the other and are coated on both sides, owing to the relatively high voltages. The conductor tracks are formed from high-temperature superconducting thin films and are electrically connected in series at one end via the contact surfaces, by means of connecting links. The other ends of the conductor tracks are connected directly to one another via further contact surfaces passing through, and are used at the same time to hold the current supply lines. The connecting links and the current supply lines are electrically conductively connected to the contact surfaces by means of soldered, pressure or spring contacts. Depending on the nature of the contact configuration, finite resistances occur, in 1999P04097 - la -which heat is produced by the currents flowing during normal operation.
' CA 02376976 2001-12-14 Since the resistive current limiting devices, in particular, are directly connected to the circuits to be protected, a not inconsiderable amount of heat is produced by the relatively high operating currents, even if the contact and connecting resistances are low, correspondingly heating the coolant. The heat losses, which are multiplied in a corresponding manner even further, in particular as the number of conductor tracks increases, can in this case reach the same order of magnitude as the current supply losses, or may even exceed them. The undesirable heating of the coolant associated with this can be compensated for only with a large amount of complexity by means of refrigeration machines, whose efficiency is known to be poor.
The object on which the invention is based is to significantly improve the current-carrying connection elements for conductor tracks, in terms of the undesirable heating of the coolant that occurs, and to design them such that it is even reasonable to use current limiting devices for high currents. According to the invention, this is achieved by the following features:
1.1 the current-carrying connection elements are in the form of high-temperature superconducting strips, 1.2 the high-temperature superconducting strips are electrically conductively connected to the high-temperature superconducting thin films via interlocking and/or force-fitting conductive connections, and 1.3 the high-temperature superconducting strips have an approximately arc-shaped cross-sectional contour which is matched to the distance between the conductor tracks of the high-temperature superconducting thin films which are to be connected to one another.
1999P04097 - 2a -The use of high-temperature superconducting strips as the current-carrying connection elements for conductor tracks, which are electrically conductively connected to the conductor tracks of the high-temperature superconducting thin films via interlocking and/or force-fitting conductive connections, minimizes the resistance of the electrical connection, thus keeping the amount of heat introduced into the coolant correspondingly low.
Furthermore, the direct contact points between the high-temperature superconducting strips and the high-temperature superconducting thin films are not subjected to excessive heating, and hence to premature destruction.
The approximately arc-shaped cross-sectional contour of the high-temperature superconducting strips, which can also be further-processed as prefabricated components in automated production processes, allows very flexible matching to different distances between the conductor tracks.
One advantageous refinement of the invention provides the following features:
2.1 the high-temperature superconducting thin films of the conductor tracks are arranged with respect to one another such that the free ends of each of the high-temperature superconducting strips alternately form the interlocking and/or force-fitting conductive connections with their inner contour and their outer contour and/or end face, 2.2 the interlocking and/or force-fitting conductive connections are preferably designed over the entire surface, over the entire width of the high-temperature superconducting strips.
The alternately formed conductive connection considerably simplifies automated production of the connections and, furthermore, the effect over the entire surface for interlocking and/or force-fitting conductive connections results in a particularly low contact resistance.
The invention will be explained in more detail by means of an exemplary embodiment which is illustrated in the figure, and in which those parts which are essential for understanding are shown only partially, and merely to illustrate the principle.
In the exemplary embodiment, subregions of the conductor tracks, PL1, Pln are formed, on whose front surfaces conductor tracks are applied, which are not illustrated in any more detail but are composed of high-temperature superconducting thin film HTLS-DS. The illustration furthermore shows that the inner contour of the high-temperature superconducting strip HTSL-BD
together with the front face of the first conductor track PL1, and the outer contour of the same high-temperature superconducting strip HTSL-BD together with the front face of the n-th conductor track PLn are electrically conductively connected to one another via the conductive connections LV. The electrically conductive connections may be in the form of soldered joints as conductive connections LV, in which case the solder points may if necessary include not only the inner and outer contours of the high-temperature superconducting strips HTSL-BD, but also their end faces, if required. The conductive connections LV are formed over the entire surface. Furthermore, the high-temperature superconducting strips, on which only one high-temperature superconducting strip HTSL-BD is shown, have an approximately arc-shaped cross-sectional contour and can thus very easily be matched to possibly different distances between the conductor tracks PL1, PLn.
' CA 02376976 2001-12-14 1999P04097 - 4a -Those conductor tracks which are not represented by the high-temperature superconducting thin films HTSL-DS may also have meandering profile structures, or other profile structures, in addition to the U-profiles that are normally provided.
' CA 02376976 2001-12-14 The electrical contact surfaces for the current supply lines to be applied to, such as those which are required in particular for the current-limiting devices in switchgear assemblies, are not shown, in order to simplify the illustration.
The alternately formed conductive connection considerably simplifies automated production of the connections and, furthermore, the effect over the entire surface for interlocking and/or force-fitting conductive connections results in a particularly low contact resistance.
The invention will be explained in more detail by means of an exemplary embodiment which is illustrated in the figure, and in which those parts which are essential for understanding are shown only partially, and merely to illustrate the principle.
In the exemplary embodiment, subregions of the conductor tracks, PL1, Pln are formed, on whose front surfaces conductor tracks are applied, which are not illustrated in any more detail but are composed of high-temperature superconducting thin film HTLS-DS. The illustration furthermore shows that the inner contour of the high-temperature superconducting strip HTSL-BD
together with the front face of the first conductor track PL1, and the outer contour of the same high-temperature superconducting strip HTSL-BD together with the front face of the n-th conductor track PLn are electrically conductively connected to one another via the conductive connections LV. The electrically conductive connections may be in the form of soldered joints as conductive connections LV, in which case the solder points may if necessary include not only the inner and outer contours of the high-temperature superconducting strips HTSL-BD, but also their end faces, if required. The conductive connections LV are formed over the entire surface. Furthermore, the high-temperature superconducting strips, on which only one high-temperature superconducting strip HTSL-BD is shown, have an approximately arc-shaped cross-sectional contour and can thus very easily be matched to possibly different distances between the conductor tracks PL1, PLn.
' CA 02376976 2001-12-14 1999P04097 - 4a -Those conductor tracks which are not represented by the high-temperature superconducting thin films HTSL-DS may also have meandering profile structures, or other profile structures, in addition to the U-profiles that are normally provided.
' CA 02376976 2001-12-14 The electrical contact surfaces for the current supply lines to be applied to, such as those which are required in particular for the current-limiting devices in switchgear assemblies, are not shown, in order to simplify the illustration.
Claims (2)
1. Current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films, in particular for resistive current limiting devices in switchgear assemblies for electrical power supply and distribution, with at least two conductor tracks, which are arranged one behind the other, being electrically conductively connected via the current-carrying connection elements, and being provided with electrical contact surfaces for current supply lines to be applied to, characterized by the following features:
1.1 the current-carrying connection elements are in the form of high-temperature superconducting strips (HTSL-BD), 1.2 the high-temperature superconducting strips (HTSL-BD) are electrically conductively connected to the high-temperature superconducting thin films (HTSL-DS) via interlocking and/or force-fitting conductive connections (LV), and 1.3 the high-temperature superconducting strips (HTSL-BD) have an approximately arc-shaped cross-sectional contour which is matched to the distance between the conductor tracks (PL...) of the high-temperature superconducting thin films (HTSL-DS) which are to be connected to one another.
1.1 the current-carrying connection elements are in the form of high-temperature superconducting strips (HTSL-BD), 1.2 the high-temperature superconducting strips (HTSL-BD) are electrically conductively connected to the high-temperature superconducting thin films (HTSL-DS) via interlocking and/or force-fitting conductive connections (LV), and 1.3 the high-temperature superconducting strips (HTSL-BD) have an approximately arc-shaped cross-sectional contour which is matched to the distance between the conductor tracks (PL...) of the high-temperature superconducting thin films (HTSL-DS) which are to be connected to one another.
2. The current-carrying connection elements for conductor tracks composed of high-temperature superconducting thin films as claimed in patent claim 1, characterized by the following features:
2.1 the high-temperature superconducting thin films (HTSL-DS) of the conductor tracks -6a-(PL...) are arranged with respect to one another such that the free ends of each of the high-temperature superconducting strips (HTSL-BD) alternately form the interlocking and/or force-fitting conductive connections (LV) with their inner contour and their outer contour and/or end faces, and 2.2 the interlocking and/or force-fitting conductive connections (LV) are preferably designed over the entire surface, over the entire width of the high-temperature superconducting strips (HTSL-BD).
2.1 the high-temperature superconducting thin films (HTSL-DS) of the conductor tracks -6a-(PL...) are arranged with respect to one another such that the free ends of each of the high-temperature superconducting strips (HTSL-BD) alternately form the interlocking and/or force-fitting conductive connections (LV) with their inner contour and their outer contour and/or end faces, and 2.2 the interlocking and/or force-fitting conductive connections (LV) are preferably designed over the entire surface, over the entire width of the high-temperature superconducting strips (HTSL-BD).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19928324.9 | 1999-06-16 | ||
| DE19928324A DE19928324A1 (en) | 1999-06-16 | 1999-06-16 | Current-carrying connecting elements for plate conductors made of high-temperature superconducting thin layers |
| PCT/DE2000/001909 WO2000077864A1 (en) | 1999-06-16 | 2000-06-14 | Current-carrying connecting elements for plate conductors consisting of high-temperature supraconductive thin layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2376976A1 true CA2376976A1 (en) | 2000-12-21 |
Family
ID=7911983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002376976A Abandoned CA2376976A1 (en) | 1999-06-16 | 2000-06-14 | Current-carrying connection elements for conductor tracks composed of h igh-temperature superconducting thin films |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1186060A1 (en) |
| JP (1) | JP2003502848A (en) |
| CA (1) | CA2376976A1 (en) |
| DE (1) | DE19928324A1 (en) |
| WO (1) | WO2000077864A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10122085A1 (en) * | 2000-05-15 | 2001-12-06 | Theva Duennschichttechnik Gmbh | Superconductive switch element for altering electrical resistance has HF magnetic radiation used for switching between superconductive and normally conducting modes |
| DE10131609B4 (en) * | 2001-06-29 | 2005-08-11 | Siemens Ag | Device having a circuit of the semiconductor power electronics and having a capacitor having a protective device |
| DE10230086A1 (en) * | 2002-06-27 | 2004-01-22 | Siemens Ag | Current limiters for limiting electrical currents |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI89643C (en) * | 1990-08-17 | 1993-10-25 | Neuromag Oy | Superconducting joint for thin film components and method for its manufacture |
| US5331735A (en) * | 1993-04-28 | 1994-07-26 | General Electric Company | Method of forming a flexible connector |
| FR2714544B1 (en) * | 1993-12-27 | 1996-02-02 | Alsthom Cge Alcatel | Current limiter. |
| DE4434819C5 (en) * | 1994-09-29 | 2004-05-27 | Abb Research Ltd. | Current limiting device |
-
1999
- 1999-06-16 DE DE19928324A patent/DE19928324A1/en not_active Withdrawn
-
2000
- 2000-06-14 WO PCT/DE2000/001909 patent/WO2000077864A1/en not_active Application Discontinuation
- 2000-06-14 EP EP00951214A patent/EP1186060A1/en not_active Withdrawn
- 2000-06-14 CA CA002376976A patent/CA2376976A1/en not_active Abandoned
- 2000-06-14 JP JP2001504021A patent/JP2003502848A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003502848A (en) | 2003-01-21 |
| WO2000077864A1 (en) | 2000-12-21 |
| DE19928324A1 (en) | 2000-12-21 |
| EP1186060A1 (en) | 2002-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |