EP0941560B1 - Outer casing - Google Patents
Outer casing Download PDFInfo
- Publication number
- EP0941560B1 EP0941560B1 EP97948882A EP97948882A EP0941560B1 EP 0941560 B1 EP0941560 B1 EP 0941560B1 EP 97948882 A EP97948882 A EP 97948882A EP 97948882 A EP97948882 A EP 97948882A EP 0941560 B1 EP0941560 B1 EP 0941560B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cap
- covering hood
- cover
- covering
- hood according
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
- H01F7/0263—Closures, bags, bands, engagement devices with male and female parts
Definitions
- the invention relates to a cover according to the preamble of Claim 1, as in particular in the case of transformers Power supply networks are used.
- FR 2 335 970 shows a device for securing and sealing isolating of stripped electrical conductors connected with a screw terminal Clamping screws are connected to each other.
- a hinged cap allows access to at least one of the clamping screws by means of a Screwdriver.
- EP 0 050 244 shows a removable cover for terminal strips from Electrical devices, in particular transformers, with a cover housing, locking it on the plastic base made of plastic at least two mutually independent fastening means, wherein the use of a tool to solve at least one of these means is required, characterized in that at least this one, exclusively using a tool releasable fasteners as Snap lock is formed.
- the removable cap enables the ones hidden under the cover Divide through an opening concealed by the cap without a large one Effort can be grounded.
- the grounding is simplified in that a clearly on the connecting bolt projecting from the terminal grounding bolt is arranged. This Grounding stud protrudes at least partially beyond the cover and becomes covered by the cap in normal condition. If the cap is removed the grounding bolt is easily accessible, which means that a Earthing device is significantly simplified.
- the cap is pivotable on the cover is attached. This is preferably done by means of a hinge. As a result of that the cap is connected to the cover, it can be grounded do not get lost.
- a clip-on cap on the other hand, has the advantage that it is optimally accessible of the grounding bolt.
- One provides optimal security against unauthorized opening of the cap Attachment where a key or tool is used to open the cap is required. In this way, accidental opening by unauthorized persons safely avoided.
- the earthing device (or an earthing connection the same) are put on the cap in normal operation, where they always is ready for use.
- the grounding device can be made by the similar design of the end regions can be used as such an opening tool.
- a spherical one Design enables optimal electrical contact between the grounding bolt and the grounding device. But it is also, for example a design of these end areas as a ring or T-piece possible.
- the cover can be made in one piece by a production in Immersion process.
- the cover can also be made of two by injection molding manufactured half shells exist. This type of production is essential cheaper.
- a labyrinth seal at the seams between the two half-shells the cover provides a particularly secure way of sealing towards the environment.
- a particularly simple assembly of the cover hood enables a snap connection of the two half shells.
- a screw connection can be provided to remove the cover his.
- Fig. 1 shows a cover 1, one of a bushing insulator 3rd of a transformer in an energy supply network outstanding and in Operation Live connecting bolts 5 covers touch-proof. Through the cover 1, a terminal 7 is also connected to the Connection bolt 5 connected and the conductor 9 to an electrical Device leads, covered.
- the cover 1 is of almost a mirror image.
- Two each other corresponding flange areas 13 and 14 between the passage for the Bushing insulator 3 and the passage for the conductor 9 are by means of a Screw connection 19 interconnected to secure the cover 1 against unauthorized weight loss.
- Both the screw and the nut of the Screw connection 19 are made of plastic. It is also on the cover 1 a cap 17 is provided.
- the connecting bolt 5 is extended upwards and forms an earth bolt 21, which protrudes into the cap 17.
- the cap 17 is pivotable on the two Half-shells 13 and 14 attached so that an earthing over the earthing bolt 21 is possible (see FIG. 2).
- both the grounding bolt 21 and the cap 17 have a spherical end region 23 or 25 on which the ground connection 27 can be attached.
- cover 1 or the cap 17 can also small holes from For example, 4 mm diameter can be provided through which a voltage tester can be introduced to check whether a voltage on the Grounding bolt 21 is present. If there is no voltage, it can be grounded and then work on the device.
- the second embodiment in Fig. 3 shows a cover, which in essentially from two half-shells 113 and 114 of almost mirror images Shape exists, which are made of injection molded parts.
- a snap connection 115 connects the two half-shells 113 and 114 to one another.
- a Labyrinth seal 116 seals the abutting edges.
- the second exemplary embodiment agrees in particular with regard to the cap the first embodiment.
Landscapes
- Materials For Medical Uses (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Fuses (AREA)
- Insulators (AREA)
- Laminated Bodies (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
Description
Die Erfindung betrifft eine Abdeckhaube gemäß dem Oberbegriff des Anspruches 1, wie sie insbesondere bei Transformatoren von Energieversorgungsnetzen verwendet werden.The invention relates to a cover according to the preamble of Claim 1, as in particular in the case of transformers Power supply networks are used.
Die FR 2 335 970 zeigt eine Vorrichtung zum Sichern und dichten Isolieren von abisolierten elektrischen Leitern, die mittels einer Schraubklemme mit Klemmschrauben miteinander verbunden sind. Eine abschwenkbare Kappe erlaubt den Zugang zu mindestens einer der Klemmschrauben mittels eines Schraubendrehers.FR 2 335 970 shows a device for securing and sealing isolating of stripped electrical conductors connected with a screw terminal Clamping screws are connected to each other. A hinged cap allows access to at least one of the clamping screws by means of a Screwdriver.
Die EP 0 050 244 zeigt eine lösbare Abdeckung für Klemmleisten von Elektrogeräten, insbesondere von Transformatoren, mit einem Abdeckgehäuse, dessen Arretierung auf dem aus Kunststoff gefertigten Gerätesockel durch mindestens zwei voneinander unabhängigen Befestigungsmittel erfolgt, wobei zum Lösen mindestens eines dieser Mittel die Benutzung eines Werkzeuges erforderlich ist, dadurch gekennzeichnet, daß mindestens dieses eine, ausschließlich mittels eines Werkzeuges lösbare Befestigungsmittel als Schnappverschluß ausgebildet ist. EP 0 050 244 shows a removable cover for terminal strips from Electrical devices, in particular transformers, with a cover housing, locking it on the plastic base made of plastic at least two mutually independent fastening means, wherein the use of a tool to solve at least one of these means is required, characterized in that at least this one, exclusively using a tool releasable fasteners as Snap lock is formed.
Früher wurden zum Abdecken von Transformatoren-Anschlußbolzen und den an ihnen befestigten Anschlußklemmen Schrumpfhauben verwendet, die sich beim Schrumpfvorgang dicht an die Anschlußklemme und den Anschlußbolzen anlegen und beiden Teile vollständig abdecken. Ein Entfernen der Schrumpfhaube war mühsam und hatte die Zerstörung der Schrumpfhaube zur Folge.Previously, for covering transformer connecting bolts and the attached to them terminals shrink hoods used during the shrinking process close to the connection terminal and the connection bolt put on and completely cover both parts. A removal of the Shrink hood was tedious and had to destroy the shrink hood Episode.
Aus den DE 83 13 944 U1 und DE 94 09 218 U1 sind elastisch verformbare, abnehmbare Abdeckhauben bekannt. Die Kontur der Abdeckhauben und eine zusätzliche Verbindungsschraube verhindern im montierten Zustand ein Abnehmen. Nachteilig bei derartigen Abdeckhauben ist, daß sie zum Erden entfernt werden müssen, was zeitaufwendig ist, und daß keine permanente Erdung möglich ist. DE 83 13 944 U1 and DE 94 09 218 U1 are elastically deformable, removable covers known. The contour of the covers and a Additional connecting screws prevent a when installed Lose weight. A disadvantage of such covers is that they are earthed must be removed, which is time consuming, and that no permanent Earthing is possible.
Es ist daher Aufgabe der vorliegenden Erfindung, die Erdungsmöglichkeit zu vereinfachen, wobei die Sicherheit berücksichtigt werden soll.It is therefore an object of the present invention to increase the possibility of grounding simplify, taking security into account.
Diese Aufgabe wird durch eine Abdeckhaube mit den Merkmalen des Anspruches 1 gelöst.This object is achieved by a cover with the features of the claim 1 solved.
Eine Abdeckhaube, an der eine abnehmbare Kappe angebracht ist, bewirkt zum einen, daß der Anschlußbolzen und die Anschlußklemme, die unter der Abdeckhaube verborgen sind, berührungssicher abgedeckt sind. Andererseits ermöglicht die abnehmbare Kappe, daß die unter der Abdeckhaube verborgenen Teile durch eine mit Hilfe der Kappe verdeckte Öffnung ohne größeren Aufwand geerdet werden können.A cover with a removable cap attached to it one that the connector bolt and the connector that are under the cover are hidden, are protected against accidental contact. On the other hand The removable cap enables the ones hidden under the cover Divide through an opening concealed by the cap without a large one Effort can be grounded.
Die Erdung wird dadurch vereinfacht, daß am Anschlußbolzen ein deutlich über die Anschlußklemme hinausragender Erdungsbolzen angeordnet ist. Dieser Erdungsbolzen ragt zumindest teilweise über die Abdeckhaubehinaus und wird im normalen Zustand durch die Kappe verdeckt. Wird die Kappe abgenommen, so ist der Erdungsbolzen leicht zugängig, wodurch die Befestigung einer Erdungsvorrichtung erheblich vereinfacht wird.The grounding is simplified in that a clearly on the connecting bolt projecting from the terminal grounding bolt is arranged. This Grounding stud protrudes at least partially beyond the cover and becomes covered by the cap in normal condition. If the cap is removed the grounding bolt is easily accessible, which means that a Earthing device is significantly simplified.
Besonders vorteilhaft ist, wenn die Kappe schwenkbar an der Abdeckhaube befestigt ist. Dies erfolgt vorzugsweise mittels eines Scharniers. Dadurch, daß die Kappe mit der Abdeckhaube verbunden ist, kann sie während der Erdung nicht verlorengehen.It is particularly advantageous if the cap is pivotable on the cover is attached. This is preferably done by means of a hinge. As a result of that the cap is connected to the cover, it can be grounded do not get lost.
Eine aufsteckbare Kappe hat dagegen den Vorteil, daß sie eine optimale Zugängigkeit des Erdungsbolzens ermöglicht.A clip-on cap, on the other hand, has the advantage that it is optimally accessible of the grounding bolt.
Eine optimale Sicherheit gegen ein unbefugtes Öffnen der Kappe bietet eine Befestigung, bei der zum Öffnen der Kappe ein Schlüssel oder Werkzeug erforderlich ist. Auf diese Weise wird ein versehentliches Öffnen durch Unbefugte sicher vermieden.One provides optimal security against unauthorized opening of the cap Attachment where a key or tool is used to open the cap is required. In this way, accidental opening by unauthorized persons safely avoided.
Durch die gleichartige Ausgestaltung des Endbereichs der Kappe und des Erdungsbolzens kann die Erdungsvorrichtung (respektive ein Erdungsanschluß derselben) im normalen Betrieb auf die Kappe gesteckt werden, wo sie stets einsatzbereit ist. Soweit die Kappe mit einem Schlüssel oder Werkzeug geöffnet wird, kann durch die gleichartige Ausgestaltung der Endbereiche die Erdungsvorrichtung als solches Werkzeug zum Öffnen verwendet werden. Eine kugelförmige Ausgestaltung ermöglicht einen optimalen elektrischen Kontakt zwischen dem Erdungsbolzen und der Erdungsvorrichtung. Es ist aber auch beispielsweise eine Ausgestaltung dieser Endbereiche als Ring oder T-Stück möglich.Due to the similar design of the end region of the cap and the grounding bolt the earthing device (or an earthing connection the same) are put on the cap in normal operation, where they always is ready for use. As far as the cap opened with a key or tool the grounding device can be made by the similar design of the end regions can be used as such an opening tool. A spherical one Design enables optimal electrical contact between the grounding bolt and the grounding device. But it is also, for example a design of these end areas as a ring or T-piece possible.
Die Abdeckhaube kann einteilig ausgeführt sein durch eine Herstellung im Tauchverfahren. Die Abdeckhaube kann aber auch aus zwei im Spritzgußverfahren hergestellter Halbschalen bestehen. Diese Herstellungsart ist wesentlich kostengünstiger.The cover can be made in one piece by a production in Immersion process. The cover can also be made of two by injection molding manufactured half shells exist. This type of production is essential cheaper.
Eine Labyrinthdichtung an den Nahtstellen zwischen den beiden Halbschalen der Abdeckhaube bewirkt auf besonders einfache Weise eine sichere Abdichtung gegenüber der Umgebung.A labyrinth seal at the seams between the two half-shells the cover provides a particularly secure way of sealing towards the environment.
Eine besonders einfache Montage der Abdeckhaube ermöglicht eine Schnappverbindung der beiden Halbschalen. Zur zusätzlichen Sicherung gegen unbefugtes Entfernen der Abdeckhaube kann eine Schraubverbindung vorgesehen sein. A particularly simple assembly of the cover hood enables a snap connection of the two half shells. For additional security against unauthorized persons A screw connection can be provided to remove the cover his.
Im folgenden wird die vorliegende Erfindung anhand zweier Ausführungsbeispiele unter Bezugnahme auf die beiliegenden Zeichnungen näher erläutert. Es zeigen
- Fig. 1
- das erste Ausführungsbeispiel,
- Fig. 2
- das erste Ausführungsbeispiel in geerdetem Zustand und
- Fig. 3
- einen Schnitt durch das zweite Ausführungsbeispiel.
- Fig. 1
- the first embodiment,
- Fig. 2
- the first embodiment in a grounded state and
- Fig. 3
- a section through the second embodiment.
Fig. 1 zeigt eine Abdeckhaube 1, die einen aus einem Durchführungsisolator 3
eines Transformators in einem Energieversorgungsnetz herausragenden und im
Betrieb Spannung führenden Anschlußbolzen 5 berührungssicher abdeckt.
Durch die Abdeckhaube 1 wird ferner eine Anschlußklemme 7, die mit dem
Anschlußbolzen 5 verbunden und die über Leiter 9 zu einem elektrischen
Gerät führt, abgedeckt.Fig. 1 shows a cover 1, one of a bushing insulator 3rd
of a transformer in an energy supply network outstanding and in
Operation Live connecting
Die Abdeckhaube 1 ist von nahezu spiegelbildlicher Gestalt. Zwei einander
entsprechende Flanschbereiche 13 und 14 zwischen dem Durchlaß für den
Durchführungsisolator 3 und dem Durchlaß für den Leiter 9 sind mittels einer
Schraubverbindung 19 miteinander verbunden zur Sicherung der Abdeckhaube
1 gegen unbefugtes Abnehmen. Sowohl die Schraube als auch die Mutter der
Schraubverbindung 19 bestehen aus Kunststoff. Ferner ist an der Abdeckhaube
1 eine Kappe 17 vorgesehen.The cover 1 is of almost a mirror image. Two each other
Der Anschlußbolzen 5 ist nach oben verlängert und bildet einen Erdungsbolzen
21, der bis in die Kappe 17 ragt. Die Kappe 17 ist schwenkbar an den beiden
Halbschalen 13 und 14 befestigt, so daß eine Erdung über den Erdungsbolzen
21 möglich ist (vergl. Fig. 2). Gemäß diesem Ausführungsbeispiel weisen sowohl
der Erdungsbolzen 21 als auch die Kappe 17 einen kugelförmigen Endbereich
23 bzw. 25 auf, an dem der Erdungsanschluß 27 angebracht werden kann.The connecting
In der Abdeckhaube 1 oder die Kappe 17 können ferner kleine Bohrungen von
beispielsweise 4 mm Durchmesser vorgesehen sein, durch die ein Spannungsprüfer
eingeführt werden kann, um zu überprüfen, ob eine Spannung am
Erdungsbolzen 21 anliegt. Liegt keine Spannung an, so kann geerdet und
danach an der Vorrichtung gearbeitet werden.In the cover 1 or the
Das zweite Ausführungsbeispiel in Fig. 3 zeigt eine Abdeckhaube, die im
wesentlichen aus zwei Halbschalen 113 und 114 von nahezu spiegelbildcher
Gestalt besteht, welche aus Spritzgußteilen hergestellt sind. Eine Schnappverbindung
115 verbindet die beiden Halbschalen 113 und 114 miteinander. Eine
Labyrinthdichtung 116 dichtet die Stoßkanten ab. In den übrigen Merkmalen,
insbesondere die Kappe betreffend, stimmt das zweite Ausführungsbeispiel mit
dem ersten Ausführungsbeispiel überein.The second embodiment in Fig. 3 shows a cover, which in
essentially from two half-
Claims (8)
- Covering hood (1) for the electrical shock-proof covering of a terminal stud (5), which conducts a voltage when operational, and at least one supply terminal (7), which is fitted to the terminal stud (5), a detachable cap (17) being arranged on the covering hood (1), characterised in that the cap (17) covers an earthing stud (21), which is provided on the terminal stud (5) which protrudes from a bushing insulator (3), and in that the end region (25) of the cap (17) has a shape which is identical to the shape of the end region (23) of the earthing stud (21) so that the cap (17) can be operated with an earthing apparatus.
- Covering hood according to claim 1, characterised in that the end region (25) of the cap (17) is spherical.
- Covering hood according to claim 1 or claim 2, characterised in that the cap (17) is pivotable relative to the covering hood (1).
- Covering hood according to any one of claims 1 to 3, characterised in that the cap (17) is attachable.
- Covering hood according to any one of claims 1 to 4, characterised in that the cap (17) is fixed to the covering hood (1) in such a manner that a key or tool is necessary to open the cap (17).
- Covering hood according to any one of the preceding claims, characterised in that the covering hood comprises two half-shells (113, 114).
- Covering hood according to claim 6, characterised in that the two half-shells (113, 114) are connected to each other by means of a snap-fit connection (115).
- Covering hood according to claim 6 or claim 7, characterised in that the two half-shells (113, 114) have a labyrinth seal (116) at their adjoining edges.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29621332U | 1996-12-09 | ||
| DE29621332U DE29621332U1 (en) | 1996-12-09 | 1996-12-09 | Cover |
| PCT/EP1997/006097 WO1998026473A1 (en) | 1996-12-09 | 1997-11-05 | Outer casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0941560A1 EP0941560A1 (en) | 1999-09-15 |
| EP0941560B1 true EP0941560B1 (en) | 2001-03-21 |
Family
ID=8033022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97948882A Expired - Lifetime EP0941560B1 (en) | 1996-12-09 | 1997-11-05 | Outer casing |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0941560B1 (en) |
| AT (1) | ATE199994T1 (en) |
| DE (2) | DE29621332U1 (en) |
| HR (1) | HRP970670B1 (en) |
| WO (1) | WO1998026473A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004045081B4 (en) * | 2004-09-16 | 2009-05-20 | Lowitzki, Jürgen | Hood for covering the head of an insulation candle |
| DE102004045788B4 (en) * | 2004-09-16 | 2007-02-08 | LWT-Sicherheitswerkzeuge Jürgen Lowitzki | Hood for covering the head of an insulation candle |
| FR2901630B1 (en) * | 2006-05-23 | 2008-10-17 | Pioch Soc Par Actions Simplifi | PASS BAR |
| FR2901631B1 (en) * | 2006-05-23 | 2010-05-21 | Pioch | ROD-PITCH ASSEMBLY TO BE MOUNTED ACROSS AN ORIFICE OF A WALL OF AN ELECTRIC TRANSFORMER |
| CN111641118B (en) * | 2020-06-15 | 2021-12-31 | 东营金丰正阳科技发展有限公司 | Dustproof distribution box |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2335970A1 (en) * | 1975-12-18 | 1977-07-15 | Bonneau Connecteurs Albert | Protective covers for electrical terminals - are made of one piece moulded flexible insulating material enclosing terminals |
| DE3039478A1 (en) * | 1980-10-18 | 1982-06-03 | A. Grothe & Söhne KG, 5000 Köln | DETACHABLE COVER FOR TERMINALS |
| DE8313944U1 (en) * | 1983-05-11 | 1983-11-24 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart | Cover hood |
| AU662740B2 (en) * | 1991-03-15 | 1995-09-14 | Square D Company | Protective snap-together enclosure for current transformers |
| US5131855A (en) * | 1991-05-29 | 1992-07-21 | Westinghouse Electric Corp. | Grounding stud assembly |
-
1996
- 1996-12-09 DE DE29621332U patent/DE29621332U1/en not_active Expired - Lifetime
-
1997
- 1997-11-05 AT AT97948882T patent/ATE199994T1/en not_active IP Right Cessation
- 1997-11-05 EP EP97948882A patent/EP0941560B1/en not_active Expired - Lifetime
- 1997-11-05 DE DE59703199T patent/DE59703199D1/en not_active Expired - Fee Related
- 1997-11-05 WO PCT/EP1997/006097 patent/WO1998026473A1/en not_active Ceased
- 1997-12-08 HR HR970670A patent/HRP970670B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0941560A1 (en) | 1999-09-15 |
| WO1998026473A1 (en) | 1998-06-18 |
| HRP970670B1 (en) | 2001-08-31 |
| DE59703199D1 (en) | 2001-04-26 |
| ATE199994T1 (en) | 2001-04-15 |
| DE29621332U1 (en) | 1997-02-06 |
| HRP970670A2 (en) | 1998-06-30 |
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