EP0771048B1 - Tube shaped shroud - Google Patents
Tube shaped shroud Download PDFInfo
- Publication number
- EP0771048B1 EP0771048B1 EP96116862A EP96116862A EP0771048B1 EP 0771048 B1 EP0771048 B1 EP 0771048B1 EP 96116862 A EP96116862 A EP 96116862A EP 96116862 A EP96116862 A EP 96116862A EP 0771048 B1 EP0771048 B1 EP 0771048B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- component
- closed
- insulation
- folds
- 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
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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
- H01R4/70—Insulation of connections
- H01R4/72—Insulation of connections using a heat shrinking insulating sleeve
Definitions
- the invention goes from a tubular casing to the electrical one Isolation of components according to the preamble of Claim 1 from.
- Such casings are well known. They are used for insulation of connectors and encapsulation of electrical Components such as capacitors, relays, coils, thermal circuit breakers and the same. They are in their dielectric, mechanical and thermal properties of the respective Adapted to the application. According to the required thermal Resilience and the necessary dielectric strength there are different versions with different ones Dimensions. They preferably consist of one Polyester or polyolefin material with or without shrinkage. By lining the tubular casings With an aramid paper, the thermal resilience can be increase. However, this reduces shrinkage of the hose material, insofar as it has this property owns.
- the sleeves described above are to be insulated before inserting the Component at one end e.g. under the influence of heat already formed into a cap by flat pressing. After the component is inserted, the other is also End of the cap closed accordingly.
- pressing is created according to the drawing Fig.3 at both ends a hard crescent-shaped surface that has sharp edges to the outside protrudes over the tubular body.
- This protruding Edges required to maintain the necessary electrical clearance not simply cut or trimmed may, in the course of the installation of one such Cap isolated component in a circuit or a Device for injuring neighboring components or lines to lead.
- electrical isolated components e.g. Temperature protection switches, between the turns of a winding, there is a risk of Violation of the sensitive wire insulation.
- Another electrically insulating jacket for insulation from an end node is also from, for example DE 41 10 455 A known.
- the object of the invention is therefore an insulating To create cover for electrical components in which the Risk of injury to neighboring components from such a isolated component is reduced to a minimum.
- the advantages achieved by the invention are in particular in that the closed end portions of the shells are wedge-shaped due to the folded sides and no sharp ones protruding beyond the envelope profile Have edges.
- FIG. 3 shows a top view of a tubular casing 1, the according to a prior art by simple flat pressing under e.g. Exposure to heat of the two end regions 2 and 2a the cover is welded at the end.
- the end regions 2 and 2a are deformed in a crescent shape and have sharp corners that are also above the rest Project the body of the case from the side.
- the end regions 2 and 2a become hard and can, as described above, e.g. when inserting between the turns one Winding with the sharp-edged corners the sensitive insulation of the winding wire or injure thin wires cut through.
- FIG. 2A shows the envelope 1 of FIG. 1 with a view of the one to be closed End face before pressing.
- the envelope 1 is in End area 2 on opposite sides towards the center folded that the end portion 2 through the formation the folds 3 tapers towards the front, as can be seen in FIG.
- the case end thus prepared is then made in a conventional manner pressed using heat or adhesive.
- the Fig. 2B shows the cover 1 closed on one side with itself wedge-shaped tapering end region 2 according to FIG. 1.
- FIG.4A 4 shows a casing 1 according to FIG Component 5 is equipped, the connections 6 on one side are brought out.
- the cap-shaped shell 1 protrudes with the open end of the component 5 sufficiently far so that the End region 2a is long enough to form folds 4.
- Fig.4A 4 shows a view of the front with the led out Connections 6. As shown in Fig.4A, arise the folds 4 by wrapping in the casing material the connections 6, so that the wedge-shaped tapered end region 2a lies closely against the connections 6. By a subsequent oneshrinking process, the folds 4 are fixed, whereby at the same time the casing material closely around the component 5 and the connections 6 puts.
- FIG. 5 shows an electrical protected by a sheath 7 Component 10, the connections 11 on opposite sides are brought out.
- the cover 7 is for assembly with a component 10 open on both sides.
- the shell 7 is over the end regions 7a and 7b longer than the component 10 to the Ensure formation of folds 8 and 9.
- Fig. 5A shows that Fig.5 in the view of the end faces with the led out Connections 11. Since the views of both end faces are the same there is no need for a double display.
- Fig.5A recognize leaves, in this case the formation of the folds 8 and 9 in that shown and described by FIGS. 2A and 2B Art.
- tubular casing material preferably made of a polyester or polyolefin material with or without shrink properties.
- shrinkable tube material for the casing 1 or 7 there are materials with different shrink rates on. With increasing thermal resilience of the hose material the shrinking capacity decreases.
- Shrinkable aramid paper reduces shrinkability Farther.
- the envelope must be folded 1 or 7, with their pressing a shrinking of the end regions 2 and 2a or 7a and 7b can be connected in egg to the extent that ensures that the casing 1 and 7 after shrinking onto an electrical component another one has tapered end regions 2 and 2a or 7a and 7b.
Landscapes
- Insulating Bodies (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Details Of Indoor Wiring (AREA)
Description
Die Erfindung geht von einer schlauchförmigen Hülle zur elektrischen
Isolation von Bauteilen gemäß dem Oberbegriff des
Anspruchs 1 aus.The invention goes from a tubular casing to the electrical one
Isolation of components according to the preamble of
Derartige Hüllen sind hinreichend bekannt. Sie dienen zur Isolierung von Anschlüssen und der Einkapselung von elektrischen Komponenten, wie Kondensatoren, Relais, Spulen, Thermoschutzschaltern und dergleichen. Sie sind in ihren dieLektrischen, mechanischen und thermischen Eigenschaften an den jeweiligen Anwendungsfall angepaßt. Entsprechend der geforderten thermischen Belastbarkeit und der notwendigen elektrischen Durchschlagsfestigkeit gibt es verschiedene Ausführungen mit unterschiedlichen Abmessungen. Sie bestehen vorzugsweise aus einem Polyester- oder Polyolefinmaterial mit oder ohne Schrumpfvermögen. Durch eine Auskleidung der schlauchförmigen Hüllen mit einem Aramidpapier läßt sich die thermische Belastbarkeit erhöhen. Allerdings verringert sich dadurch das Schrumpfvermögen des Schlauchmaterials, soweit es diese Eigenschaft besitzt.Such casings are well known. They are used for insulation of connectors and encapsulation of electrical Components such as capacitors, relays, coils, thermal circuit breakers and the same. They are in their dielectric, mechanical and thermal properties of the respective Adapted to the application. According to the required thermal Resilience and the necessary dielectric strength there are different versions with different ones Dimensions. They preferably consist of one Polyester or polyolefin material with or without shrinkage. By lining the tubular casings With an aramid paper, the thermal resilience can be increase. However, this reduces shrinkage of the hose material, insofar as it has this property owns.
Die vorbeschriebenen Hüllen sind vor dem Einsetzen des zu isolierenden Bauteils in der Regel an einem Ende z.B. unter Wärmeeinwirkung durch Flachpressen bereits zu einer Kappe geformt. Nachdem das Bauteil eingesetzt ist, wird auch das andere Ende der Kappe entsprechend verschlossen. Durch das Verpressen entsteht gemäß der Zeichnung Fig.3 an beiden Enden eine harte sichelförmige Fläche, die scharfkantig nach außen über den schlauchförmigen Körper vorsteht. Diese überstehenden Kanten, die zum Erhalt des notwendigen elektrischen Abstandes nicht einfach abgeschnitten oder beschnitten werden dürfen, können im Verlauf des Einbaus eines durch eine derartige Kappe isolierten Bauelementes in eine Schaltung oder ein Gerät zur Verletzung benachbarter Komponenten oder Leitungen führen. Insbesondere beim Einbringen von derart elektrisch isolierten Bauelementen, wie z.B. Temperaturschutzschaltern, zwischen die Windungen einer Wicklung, besteht die Gefahr einer Verletzung der empfindlichen Drahtisolation.The sleeves described above are to be insulated before inserting the Component at one end e.g. under the influence of heat already formed into a cap by flat pressing. After the component is inserted, the other is also End of the cap closed accordingly. By pressing is created according to the drawing Fig.3 at both ends a hard crescent-shaped surface that has sharp edges to the outside protrudes over the tubular body. This protruding Edges required to maintain the necessary electrical clearance not simply cut or trimmed may, in the course of the installation of one such Cap isolated component in a circuit or a Device for injuring neighboring components or lines to lead. Especially when introducing such electrical isolated components, e.g. Temperature protection switches, between the turns of a winding, there is a risk of Violation of the sensitive wire insulation.
Eine andere elektrisch isolierende Umhüllung zur Isolation von einem Endknoten ist auch beispielsweise aus der DE 41 10 455 A bekannt.Another electrically insulating jacket for insulation from an end node is also from, for example DE 41 10 455 A known.
Die Aufgabe der Erfindung besteht daher darin, eine isolierende Hülle für elektrische Bauteile zu schaffen, bei der die Verletzungsgefahr benachbarter Komponenten durch ein derart isoliertes Bauteil auf ein Minimum reduziert ist.The object of the invention is therefore an insulating To create cover for electrical components in which the Risk of injury to neighboring components from such a isolated component is reduced to a minimum.
Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale
gelöst. Die Unteransprüche zeigen vorteilhafte Ausgestaltungen
des Erfindungsgegenstandes auf.This object is achieved by the features specified in
Die durch die Erfindung erzielten Vorteile bestehen insbesondere darin, daß die verschlossenen Endbereiche der Hüllen durch die eingefalteten Seiten keilförmig ausgebildet sind und keine über das Hüllenprofil hinausragende scharfe Kanten aufweisen.The advantages achieved by the invention are in particular in that the closed end portions of the shells are wedge-shaped due to the folded sides and no sharp ones protruding beyond the envelope profile Have edges.
Anhand von Ausführungsbeispielen wird die Erfindung in Verbindung mit den Zeichnungen nachfolgend näher erläutert. Es zeigt:
- Fig.1
- eine einseitig verschlossene schlauchförmige Hülle gemäß der Erfindung in Draufsicht.
- Fig.2A
- die Hülle gemäß Fig.1 in Stirnansicht mit faltenförmig eingeschlagenen Seiten vor dem Verpressen.
- Fig.2B
- die Hülle gemäß Fig.2A nach dem Verpressen.
- Fig.3
- in Draufsicht eine schlauchförmige Hülle mit beidseitigem Verschluß gemäß dem Stand der Technik.
- Fig.4
- ein in eine schlauchförmige Hülle gemäß der Erfindung eingeschweißtes elektrisches Bauteil mit einseitig herausgeführten Anschlüssen in Draufsicht.
- Fig.4A
- den Gegenstand der Fig.4 in Blickrichtung auf die Anschlüsse.
- Fig.5
- ein in eine schlauchförmige Hülle gemäß der Erfindung eingeschweißtes elektrisches Bauteil mit an gegenüberliegenden Seiten herausgeführten Anschlüssen in Draufsicht.
- Fig.5A
- den Gegenstand der Fig.5 in Blickrichtung auf eine der beiden Anschlüsse.
- Fig. 1
- a one-sided closed tubular casing according to the invention in plan view.
- Fig. 2A
- the shell according to Figure 1 in front view with folded folds before pressing.
- Fig.2B
- the casing according to Fig. 2A after pressing.
- Fig. 3
- a plan view of a tubular sleeve with double-sided closure according to the prior art.
- Fig. 4
- an electrical component welded into a tubular sheath according to the invention with connections led out on one side in plan view.
- Fig.4A
- the object of Figure 4 looking towards the connections.
- Fig. 5
- an electrical component welded into a tubular sheath according to the invention with connections led out on opposite sides in plan view.
- Fig. 5A
- 5 in the direction of view of one of the two connections.
Fig.3 zeigt in Draufsicht eine schlauchförmige Hülle 1, die
gemäß einem Stand der Technik durch einfaches Flachpressen
unter z.B. Wärmeeinwirkung der beiden Endbereiche 2 und 2a
der Hülle endseitig verschweißt ist. Gemäß der Darstellung
sind die Endbereiche 2 und 2a dabei sichelförmig verformt
und weisen scharfkantige Ecken auf, die zudem über den übrigen
Hüllenkörper seitlich vorstehen. Durch das Verschweißen
werden die Endbereiche 2 und 2a hart und können, wie vorbeschrieben,
z.B. beim Einführen zwischen die Windungen einer
Wicklung mit den scharfkantigen Ecken die empfindliche Isolation
des Wicklungsdrahtes verletzen oder dünne Drähte
durchschneiden.3 shows a top view of a
Fig.1 zeigt dagegen eine schlauchförmige Hülle 1, deren eines
Ende auch durch Flachpressen verschweißt ist, dessen Endbereich
2 aber keilförmig nach vorne ausläuft. Dieses wird durch
faltenförmiges Einschlagen des vorderen Hüllenendes an gegenüberliegenden
Seiten des Endbereichs 2 erreicht.1 shows a
Fig.2A zeigt die Hülle 1 der Fig.1 im Blick auf die zu verschließende
Stirnseite vor dem Verpressen. Die Hülle 1 ist im
Endbereich 2 an gegenüberliegenden Seiten zur Mitte hin derart
eingefaltet, daß sich der Endbereich 2 durch die Bildung
der Falten 3 nach vorne verjüngt, wie Fig.1 erkennen läßt. Das
so vorbereitete Hüllenende wird sodann in herkömmlicher Weise
unter Anwendung von Wärme oder Klebstoff verpreßt. Die
Fig.2B zeigt die einseitig verschlossene Hülle 1 mit sich
keilförmig verjüngendem Endbereich 2 gemäß Fig.1.2A shows the
Fig.4 zeigt eine Hülle 1 gemäß Fig.1, die mit einem elektrischen
Bauteil 5 bestückt ist, dessen Anschlüsse 6 einseitig
herausgeführt sind. Die kappenförmige Hülle 1 überragt mit
dem offenen Ende das Bauteil 5 ausreichend weit, so daß der
Endbereich 2a lang genug zur Bildung von Falten 4 ist. Fig.4A
zeigt die Fig.4 in der Ansicht auf die Stirnseite mit den herausgeführten
Anschlüssen 6. Wie Fig.4A erkennen läßt, entstehen
die Falten 4 durch Einschlagen des Hüllenmaterials unter
die Anschlüsse 6, so daß der dadurch keilförmig verjüngte Endbereich
2a eng an den Anschlüssen 6 anliegt. Durch einen nachfolgenden
Schrumpfprozeß werden die Falten 4 fixiert, wobei
sich gleichzeitig das Hüllenmaterial eng um das Bauteil 5 und
die Anschlüsse 6 legt. 4 shows a
Fig.5 zeigt ein durch eine Hülle 7 geschütztes elektrisches
Bauteil 10, dessen Anschlüsse 11 an gegenüberliegenden Seiten
herausgeführt sind. In diesem Fall ist die Hülle 7 zum Bestükken
mit einem Bauteil 10 beidseitig offen. Die Hülle 7 ist um
die Endbereiche 7a und 7b länger als das Bauteil 10, um die
Bildung von Falten 8 und 9 zu gewährleisten. Fig.5A zeigt die
Fig.5 in der Ansicht auf die Stirnseiten mit den herausgeführten
Anschlüssen 11. Da die Ansichten beider Stirnseiten gleich
sind, erübrigt sich eine Doppeldarstellung. Wie Fig.5A erkennen
läßt, erfolgt in diesem Fall die Bildung der Falten 8 und
9 in der durch die Fig.2A und 2B gezeigten und beschriebenen
Art. Durch den sich an die Faltenbildung anschließenden
Schrumpfungsprozeß, dem die Hülle 7 unterzogen wird, legt
sich das Hüllenmaterial gemäß Fig.5A eng um das Bauteil 10
und die Anschlüsse 8 und 9.5 shows an electrical protected by a
Wie bereits eingangs erwähnt, besteht das schlauchartige Hüllenmaterial
vorzugsweise aus einem Polyester- oder Polyolefinmaterial
mit oder ohne Schrumpfeigenschaften. Bei der Verwendung
von schrumpffähigem Schlauchmaterial für die Hülle 1 bzw.
7 bieten sich Materialien mit unterschiedlichen Schrumpfraten
an. Mit zunehmender thermischer Belastbarkeit des Schlauchmaterials
sinkt das Schrumpfvermögen. In Kombination mit einem
schrumpfunfähigen Aramidpapier verringert sich die Schrumpffähigkeit
weiterhin. In jedem Fall muß die Einfaltung der Hülle
1 bzw. 7, mit deren Verpressen ein Vorschrumpfen der Endbereiche
2 und 2a bzw. 7a und 7b verbunden sein kann, in ei
nem Maße erfolgen, das sicherstellt, daß die Hülle 1 bzw. 7
nach dem Aufschrumpfen auf ein elektrisches Bauteil noch einen
sich verjüngende Endbereiche 2 und 2a bzw. 7a und 7b hat.As already mentioned at the beginning, there is the tubular casing material
preferably made of a polyester or polyolefin material
with or without shrink properties. When using
of shrinkable tube material for the
Bei einer Hülle 1 bzw. 7 aus einem nicht-schrumpffähigen Material,
bei der der Festsitz nur über Toleranzen gesichert
wird, kann der Einschlag der Falten 3 und 4 bzw. 8 und 9 etwas
geringer sein. Das Einfalten der Hüllenenden stellt sicher,
daß beim Einsetzen eines durch eine Hülle 1 bzw. 7 geschützten
elektrischen Bauteils aufgrund der kantenfreien und sich keilförmig
verjüngenden Enden der Hülle einer Verletzung der Isolation
benachbarter elektrischer Bausteine oder Leitungen
weitgehend vorgebeugt ist. Im Bereich der Falten 3 und 4 bzw.
8 und 9 besteht eine mehrfache Materialstärke, die vor allem
eine Erhöhung der dielektrischen Werte in diesem Bereich zur
Folge hat.In the case of a
Claims (5)
- A hose-shaped sleeve for the insulation of electromechanical and/or electronic components whose projecting end regions are closed by maintaining the electrically necessary distances, by way of flat pressing,
characterized in that the end region (2, 4 and 7a,7b) of the sleeve (1) to be closed is folded prior to the pressing procedure in a plicated manner (folds 3,4 and 8,9) on opposite sides. - A sleeve as claimed in Claim 1, characterized in that said folds (3,4 and 8,9) are so deep that the closed end regions (2,4 and 7a,7b) are wedge-shapedly tapered compared to the remaining sleeve body.
- A sleeve as claimed in Claim 1 for the insulation of components having terminals being led out on one side,
characterized in that said sleeve (1), prior to being equipped with a component (5) is designed to form a cap by way of providing a one-sided closure of one of the end regions (2), while said other end region (2a) is subsequently closed in the same way after a component (5) has been inserted. - A sleeve as claimed in Claim 1 for the insulation of components having terminals being led out on opposite sides, characterized in that said end-sided closure of said sleeve (7) is carried out after a component (10) has been inserted.
- A sleeve as claimed in Claim 1, characterized in that it consists either completely or partly of a shrinkable material.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19539843 | 1995-10-26 | ||
DE19539843 | 1995-10-26 | ||
DE19621830A DE19621830A1 (en) | 1995-10-26 | 1996-05-31 | Tubular sheath |
DE19621830 | 1996-05-31 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0771048A2 EP0771048A2 (en) | 1997-05-02 |
EP0771048A3 EP0771048A3 (en) | 1998-12-16 |
EP0771048B1 true EP0771048B1 (en) | 2001-01-03 |
EP0771048B2 EP0771048B2 (en) | 2005-09-21 |
Family
ID=26019798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960116862 Expired - Lifetime EP0771048B2 (en) | 1995-10-26 | 1996-10-21 | Tube shaped shroud |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0771048B2 (en) |
ES (1) | ES2153928T5 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007018206B4 (en) * | 2007-04-16 | 2010-03-18 | Tmc Sensortechnik Gmbh | Temperature limiter and method for producing a shell and applying the same to the body of the temperature limiter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2997411A (en) * | 1956-10-02 | 1961-08-22 | Amp Inc | Closed end connector |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3385922A (en) * | 1965-07-27 | 1968-05-28 | Susquehanna Corp | Electrical connector with hermetic sealing utilizing polymerization |
US3908267A (en) * | 1972-08-23 | 1975-09-30 | Stone Ind Corp | Method of applying an insulating connector |
GB1604986A (en) * | 1978-01-09 | 1981-12-16 | Raychem Sa Nv | Clip |
JPS5876214A (en) * | 1981-11-02 | 1983-05-09 | Yoshino Kogyosho Co Ltd | Sealing process for synthetic resin tube container |
DE3439699A1 (en) * | 1984-10-30 | 1986-04-30 | Siemens AG, 1000 Berlin und 8000 München | Inserts for shrink sleeves |
DE4110455A1 (en) * | 1991-03-29 | 1992-10-01 | Schunk Ultraschalltechnik Gmbh | Electrically insulating connection casing - comprises hose section shaped ultrasonically at ends |
-
1996
- 1996-10-21 EP EP19960116862 patent/EP0771048B2/en not_active Expired - Lifetime
- 1996-10-21 ES ES96116862T patent/ES2153928T5/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2997411A (en) * | 1956-10-02 | 1961-08-22 | Amp Inc | Closed end connector |
Also Published As
Publication number | Publication date |
---|---|
EP0771048B2 (en) | 2005-09-21 |
ES2153928T3 (en) | 2001-03-16 |
ES2153928T5 (en) | 2006-04-01 |
EP0771048A2 (en) | 1997-05-02 |
EP0771048A3 (en) | 1998-12-16 |
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