EP1792324A1 - Insulating material housing with a ventilation shaft - Google Patents

Insulating material housing with a ventilation shaft

Info

Publication number
EP1792324A1
EP1792324A1 EP05786986A EP05786986A EP1792324A1 EP 1792324 A1 EP1792324 A1 EP 1792324A1 EP 05786986 A EP05786986 A EP 05786986A EP 05786986 A EP05786986 A EP 05786986A EP 1792324 A1 EP1792324 A1 EP 1792324A1
Authority
EP
European Patent Office
Prior art keywords
ventilation shaft
drive
section
holding
insulating material
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.)
Granted
Application number
EP05786986A
Other languages
German (de)
French (fr)
Other versions
EP1792324B1 (en
Inventor
Ralf-Reiner Volkmar
Matthias Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1792324A1 publication Critical patent/EP1792324A1/en
Application granted granted Critical
Publication of EP1792324B1 publication Critical patent/EP1792324B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H01H2009/526—Cooling of switch parts of the high voltage switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/6606—Terminal arrangements
    • H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches

Definitions

  • the invention relates to an insulating material housing with a holding section provided for receiving a switching tube, which is equipped with an input connection piece, and a drive section which adjoins the holding section in a longitudinal direction and has a drive opening for introducing a drive movement into the interrupter an outlet fitting is equipped, wherein a communicating with an interior of the drive section ventilation shaft is provided.
  • the invention further relates to a solid-insulated switch pole with an insulating material housing, in which a switching tube is arranged.
  • Such an insulating material housing and such a solid-state switch pole are already known from Chinese utility model CNZL00246088.2.
  • a interrupter is cast, which is bolted to ih ⁇ rem stationary fixed contact with an input terminal piece, which from the outside, so outside of the Isulierstoffgeophuses, can be contacted.
  • the interrupter On its side facing away from the input ⁇ connecting piece side, the interrupter on a metallic end cap, which is penetrated by a movably guided switching rod.
  • the selector rod is connected via a flexible current band to an outgoing connector, which can also be contacted from the outside.
  • the Isolier ⁇ plastic housing has an opening through which a drive ⁇ rod extends.
  • the drive rod is for introducing a Drive movement of a drive unit provided in the shift rod.
  • an electrical current flows via the input connection piece, the contacts of the interrupter, the switching rod, the current band and the outgoing connection piece. Due to an increased ohmic resistance, a dissipative energy loss, which depends on the magnitude of the current, occurs in the form of heat, in particular at the current band.
  • a duct-shaped ventilation duct is provided, which communicates with the interior of the insulating housing via an inlet opening.
  • the upward rising heated air enters via the inlet opening in the ventilation shaft and is finally released to the Atmo ⁇ sphere.
  • the heat is thus led out of the interior of the insulating material, wherein cold ambient air is sued by the drive opening of the insulating housing nachge ⁇ .
  • the previously known insulating material adheres to the disadvantage that the cooling power generated by the channel-shaped ventilation shaft, in particular at higher electrical currents, is insufficient.
  • the object of the invention is therefore to provide a solid-insulated switch pole and an insulating the initially-called kind that allow for high elektri ⁇ rule flows a sufficiently high cooling capacity whatsoever stiill ⁇ represents is.
  • the invention achieves this object by virtue of the ventilation shaft enclosing the holding section in the shape of a collar.
  • a collar-shaped cooling shaft which encloses a wide portion of the holding portion in which the interrupter is arranged.
  • the ventilation shaft can completely or only partially enclose the holding section. It is essential, however, that the circulation of the ventilation shaft around the holding section provides a substantially greater cooling capacity than in the prior art.
  • reinforcing ribs are arranged in the ventilation shaft, which are gas-impermeable or may have gas-permeable fürgangsbe ⁇ rich. The reinforcing ribs serve for the mechanical stabilization of the ventilation shaft.
  • the ventilation shaft tapers in the longitudinal direction of its Antriebsab from ⁇ cut out facing away from the end.
  • the Be ⁇ ventilation shaft By tapering the Be ⁇ ventilation shaft in the formation of a Düsenab ⁇ -section at the exit end of the ventilation shaft.
  • the flow velocity of air flow through the ventilation shaft is greater than in a larger An ⁇ suction port communicating with the driving portion of the ventilation shaft, via which the Belüf ⁇ tung bay. In this way, a chimney effect, whereby the cooling capacity of the insulating material is increased even further.
  • the holding portion is tubular and the drive portion is frusto-conical, wherein the inner diameter of the holding portion is larger than the inner nen pressmesser of the drive section.
  • the holding portion is suitably adapted to the dimensions of the interrupter, which is provided for mounting in the insulating housing.
  • an elastic padding is usually provided, which also compensates under ⁇ different thermal expansions at higher temperatures of the interrupter and helps to prevent cracking of the insulating ⁇ housing.
  • the boundary wall of the ventilation shaft continues the ke ⁇ gelstumpfförmige outer contour of the drive section continu ously ⁇ and steplessly continue. In this way, both a chimney effect is provided, while at the same time providing for a possibly most compact insulating material housing.
  • holding section and drive section are connected to each other by means of a transition shoulder.
  • holding section and drive section are formed on one another and integrally formed, so that the Isolierstoffge ⁇ housing can be produced in a casting process.
  • the inlet connection piece is connected to a cooling body, wherein the ventilation shaft is designed such that an air flow emerging from the ventilation shaft is aligned with the cooling body.
  • Is designed by Isolierstoffgeophuse and interrupter solid ⁇ insulated switch pole designed for higher currents it is for further heat dissipation advantageous to heat-conduction connect the input terminal ⁇ piece with a heat sink, so that the surface of the heat-conductive metallic material, at which sets a high rate of heat exchange with the ambient air, is increased.
  • the cooling capacity increases be ⁇ significant, so that even larger electrical currents are be ⁇ controlled.
  • Figure 1 is a perspective view of a
  • Embodiment of the invention Isolier ⁇ material housing shows
  • Figure 2 shows the insulating material according to Figure 1 in a perspective plan view from above and Figure 3 shows a plan view of the insulating material from below and thus the interior of the housing.
  • FIG. 1 shows an embodiment of the insulating material according to the invention 1 in a perspective view.
  • the insulating housing 1 has a holding portion 2 of substantially hollow cylindrical shape and a frustoconical drive section 3, which adjoins the holding section in a longitudinal direction and has an enlarged inner diameter compared to the holding section 2.
  • ⁇ sleeve 4 At the upper end of the holding portion 2 is an acquisition on ⁇ sleeve 4 is formed, in which an input connector 5 is cast of copper.
  • a vacuum interrupter not shown in the figure, behind the receptacle mehülse 4 a mounting hole 6 is provided, through which hin ⁇ by the vacuum interrupter firmly with the input terminal ⁇ piece 5 can be screwed.
  • a receiving sleeve 7 is also integrally formed, in which a discharge connection piece 8 is cast.
  • a discharge connection piece 8 is cast.
  • the holding section 2 partially transitions over a transition shoulder 11 into the drive section 3.
  • a ventilation shaft 12 can be seen, the inlet opening in the transition region zwi ⁇ 's drive section 3 and holding portion 4 is formed.
  • the outer contour of the drive section 3 by the peripherally outer boundary surface of the ventilation ⁇ shaft 12 will be continued, so that in the loading ⁇ of the ventilation shaft 12 rich transition shoulders 11 ver ⁇ are avoided.
  • the boundary wall of the ventilation shaft 12 continues the outer contour of the drive section 3 continuously and steplessly.
  • the Belüf ⁇ tung bay 12 encloses more than half of the cylindricity ⁇ rule holding portion 3, wherein the holding rods 14 to the mechanical see stabilization of the ventilation shaft 12 are provided.
  • Figure 2 shows the insulating material according to Figure 1 in a perspective view from above. It can be seen, the input terminal 5 that via the mounting port 6 extends away so that the subsequent connection of the Va ⁇ kuumschaltrschreibe is provided by screwing. Furthermore, a fixing rib 15 can be seen, which is used to stabilize the insulating housing 1 or the solid-material insulated
  • Switch pole is provided when this is sixteenge ⁇ with adjacent ange ⁇ arranged further switch poles to a switch sets.
  • each switch pole is provided for switching one phase of a three-phase network.
  • FIG. 3 shows the interior of the insulating housing 1 in a plan view of the underside of the insulating housing 1. It can be seen that the insulating housing 1 can be firmly screwed into the base 9 through bores 16. Furthermore, it can be seen that the transitional shoulder 11 is formed in the front region, while the ventilation shaft 12 extends quasi through a recess in the transitional shoulder 11 in the upper region. The two narrow sides 13 of the ventilation ⁇ shaft 12 clamp to a center 15 of the Halteab- section 2 at an angle of about 180 degrees. Furthermore, it can be seen that the ventilation shaft 12 tapers to its outlet opening facing away from the base 9, so that a chimney effect which increases the cooling power can be generated.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Thermally Actuated Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Insulating Bodies (AREA)
  • Catching Or Destruction (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

An insulating material housing has a holding section, which is designed for holding a switching tube and which is fitted with an input connecting piece, and a drive section, which connects to the holding section in a longitudinal direction, has a drive opening for introducing a drive movement into the switching tube, and which is fitted with an output connecting piece. A ventilation shaft is provided that communicates with an inner space of the drive section. The object is to provide an insulating material housing of this general type with which, even in the event of large currents, a sufficiently high cooling capacity is provided. To this end, the ventilation shaft surrounds the holding section in the shape of a collar.

Description

Beschreibungdescription
Isolierstoffgehäuse mit BelüftungsschachtInsulating housing with ventilation shaft
Die Erfindung betrifft ein Isolierstoffgehäuse mit einem zur Aufnahme einer Schaltröhre eingerichteten Halteabschnitt, der mit einem Eingangsanschlussstück ausgerüstet ist, und einem sich an den Halteabschnitt in einer Längsrichtung anschlie¬ ßenden Antriebsabschnitt, der eine Antriebsöffnung zum Ein- leiten einer Antriebsbewegung in die Schaltröhre aufweist und mit einem Abgangsanschlussstück ausgerüstet ist, wobei ein mit einem Innenraum des Antriebsabschnitts kommunizierender Belüftungsschacht vorgesehen ist.The invention relates to an insulating material housing with a holding section provided for receiving a switching tube, which is equipped with an input connection piece, and a drive section which adjoins the holding section in a longitudinal direction and has a drive opening for introducing a drive movement into the interrupter an outlet fitting is equipped, wherein a communicating with an interior of the drive section ventilation shaft is provided.
Die Erfindung betrifft ferner einen feststoffisolierten Schalterpol mit einem Isolierstoffgehäuse, in dem eine Schaltröhre angeordnet ist.The invention further relates to a solid-insulated switch pole with an insulating material housing, in which a switching tube is arranged.
Ein solches Isolierstoffgehäuse und ein solcher feststoffiso- lierter Schalterpol sind aus dem chinesischen Gebrauchsmuster CNZL00246088.2 bereits bekannt. In dem dort gezeigten Iso¬ lierstoffgehäuse ist eine Schaltröhre eingegossen, die an ih¬ rem ortsfesten Festkontakt mit einem Eingangsanschlussstück verschraubt ist, das von außen, also von außerhalb des Iso- lierstoffgehäuses, kontaktierbar ist. An ihrer vom Eingangs¬ anschlussstück abgewandten Seite weist die Schaltröhre eine metallische Stirnkappe auf, die von einer beweglich geführten Schaltstange durchgriffen wird. Die Schaltstange ist über ein flexibles Stromband mit einem Abgangsanschlussstück verbun- den, das ebenfalls von außen kontaktierbar ist. Zum Einleiten einer Antriebsbewegung in die Schaltstange weist das Isolier¬ stoffgehäuse eine Öffnung auf, durch die sich eine Antriebs¬ stange erstreckt. Die Antriebsstange ist zum Einleiten einer Antriebsbewegung einer Antriebseinheit in die Schaltstange vorgesehen. Im eingeschalteten Zustand fließt ein elektri¬ scher Strom über das Eingangsanschlussstück, die Kontakte der Schaltröhre, die Schaltstange, das Stromband und das Abgangs- anschlussstück. Aufgrund eines erhöhten ohmschen Widerstandes tritt insbesondere am Stromband ein von der Höhe des Stromes abhängiger dissipativer Energieverlust in Form von Wärme auf. Zum Abführen dieser Wärme ist ein kanalförmiger Belüftungs¬ schacht vorgesehen, der über eine Eintrittsöffnung mit dem Inneren des Isolierstoffgehäuses kommuniziert. Die nach oben steigende erwärmte Luft tritt über die Eintrittsöffnung in den Belüftungsschacht ein und wird schließlich an die Atmo¬ sphäre abgegeben. Die Wärme wird somit aus dem Inneren des Isolierstoffgehäuses herausgeführt, wobei kalte Umgebungsluft durch die Antriebsöffnung des Isolierstoffgehäuses nachge¬ saugt wird.Such an insulating material housing and such a solid-state switch pole are already known from Chinese utility model CNZL00246088.2. In the Iso¬ lierstoffgehäuse shown there, a interrupter is cast, which is bolted to ih ¬ rem stationary fixed contact with an input terminal piece, which from the outside, so outside of the Isulierstoffgehäuses, can be contacted. On its side facing away from the input ¬ connecting piece side, the interrupter on a metallic end cap, which is penetrated by a movably guided switching rod. The selector rod is connected via a flexible current band to an outgoing connector, which can also be contacted from the outside. For introducing a drive movement in the shift rod, the Isolier¬ plastic housing has an opening through which a drive ¬ rod extends. The drive rod is for introducing a Drive movement of a drive unit provided in the shift rod. When switched on, an electrical current flows via the input connection piece, the contacts of the interrupter, the switching rod, the current band and the outgoing connection piece. Due to an increased ohmic resistance, a dissipative energy loss, which depends on the magnitude of the current, occurs in the form of heat, in particular at the current band. For discharging this heat, a duct-shaped ventilation duct is provided, which communicates with the interior of the insulating housing via an inlet opening. The upward rising heated air enters via the inlet opening in the ventilation shaft and is finally released to the Atmo ¬ sphere. The heat is thus led out of the interior of the insulating material, wherein cold ambient air is sued by the drive opening of the insulating housing nachge ¬ .
Dem vorbekannten Isolierstoffgehäuse haftet der Nachteil an, dass die durch den kanalförmig ausgebildeten Belüftungs- schacht erzeugte Kühlleistung, insbesondere bei höheren elektrischen Strömen, unzureichend ist.The previously known insulating material adheres to the disadvantage that the cooling power generated by the channel-shaped ventilation shaft, in particular at higher electrical currents, is insufficient.
Aufgabe der Erfindung ist es daher, einen feststoffisolierten Schalterpol und ein Isolierstoffgehäuse der eingangs genann- ten Art bereit zu stellen, mit denen auch für hohe elektri¬ schen Strömen eine ausreichend hohe Kühlleistung bereitge¬ stellt ist.The object of the invention is therefore to provide a solid-insulated switch pole and an insulating the initially-called kind that allow for high elektri¬ rule flows a sufficiently high cooling capacity bereitge ¬ represents is.
Die Erfindung löst diese Aufgabe dadurch, dass der Belüf- tungsschacht den Halteabschnitt kragenförmig umschließt.The invention achieves this object by virtue of the ventilation shaft enclosing the holding section in the shape of a collar.
Erfindungsgemäß wird die Konvektion nicht mehr wie im Stand der Technik durch einen schmalen Kühlkanal erzeugt. Vielmehr ist ein kragenförmiger Kühlschacht bereitgestellt, der einen weiten Bereich des Halteabschnitts, in dem die Schaltröhre angeordnet ist, umschließt. Der Belüftungsschacht kann den Halteabschnitt vollständig oder nur teilweise umschließen. Wesentlich ist jedoch, dass durch das Umlaufen des Belüf¬ tungsschachtes um den Halteabschnitt herum eine wesentliche größere Kühlleistung als beim Stand der Technik bereitge¬ stellt ist. Dabei ist es selbstverständlich möglich, dass in dem Belüftungsschacht Verstärkungsrippen angeordnet sind, die gasundurchlässig sind oder aber gasdurchlässige Durchgangsbe¬ reiche aufweisen können. Die Verstärkungsrippen dienen der mechanischen Stabilisierung des Belüftungsschachtes.According to the convection is no longer produced as in the prior art by a narrow cooling channel. Much more a collar-shaped cooling shaft is provided which encloses a wide portion of the holding portion in which the interrupter is arranged. The ventilation shaft can completely or only partially enclose the holding section. It is essential, however, that the circulation of the ventilation shaft around the holding section provides a substantially greater cooling capacity than in the prior art. It is of course possible that reinforcing ribs are arranged in the ventilation shaft, which are gas-impermeable or may have gas-permeable Durchgangsbe ¬ rich. The reinforcing ribs serve for the mechanical stabilization of the ventilation shaft.
Vorteilhafterweise spannen in einer Querschnittsansicht die beiden schmalseitigen Begrenzungswandungen des Belüftungs¬ schachtes bezüglich des Mittelpunktes des Halteabschnittes einen Winkel von wenigstens 40 Grad auf.Advantageously, stretch in a cross-sectional view, the two narrow-side boundary walls of the ventilation shaft with respect to the center of the holding portion at an angle of at least 40 degrees.
Bei einem bevorzugten Ausführungsbeispiel verjüngt sich der Belüftungsschacht in Längsrichtung zu seinem vom Antriebsab¬ schnitt abgewandeten Ende hin. Durch die Verjüngung des Be¬ lüftungsschachtes kommt es zur Ausbildung eines Düsenab¬ schnitts am Austrittsende des Belüftungsschachtes. Im Düsen¬ bereich ist die Strömungsgeschwindigkeit des Luftstroms durch den Belüftungsschacht größer ist als an einer größeren An¬ saugöffnung des Belüftungsschachtes, über welche der Belüf¬ tungsschacht mit dem Antriebsabschnitt kommuniziert. Auf diese Weise stellt sich ein Kamineffekt ein, wodurch die Kühlleistung des Isolierstoffgehäuses noch weiter erhöht ist.In a preferred embodiment, the ventilation shaft tapers in the longitudinal direction of its Antriebsab from ¬ cut out facing away from the end. By tapering the Be¬ ventilation shaft in the formation of a Düsenab ¬-section at the exit end of the ventilation shaft. In the nozzle ¬ area, the flow velocity of air flow through the ventilation shaft is greater than in a larger An¬ suction port communicating with the driving portion of the ventilation shaft, via which the Belüf ¬ tung bay. In this way, a chimney effect, whereby the cooling capacity of the insulating material is increased even further.
Vorteilhafterweise ist der Halteabschnitt rohrförmig und der Antriebsabschnitt kegelstumpfförmig ausgebildet, wobei der Innendurchmesser des Halteabschnittes größer ist als der In- nendurchmesser des Antriebsabschnittes. Der Halteabschnitt ist zweckmäßigerweise an die Dimensionierung der Schaltröhre, die zur Montage in dem Isolierstoffgehäuse vorgesehen ist, angepasst. Um Lufteinschlüsse zwischen der Schaltröhre und dem Isolierstoffgehäuse zu vermeiden, ist üblicherweise eine elastische Polsterung vorgesehen, die darüber hinaus unter¬ schiedliche Wärmeausdehnungen bei höheren Temperaturen der Schaltröhre ausgleicht und eine Rissbildung des Isolierstoff¬ gehäuses zu vermeiden hilft. Durch eine kegelstumpfförmige Ausbildung des Antriebsabschnittes, der unterhalb des Halte¬ abschnittes angeordnet ist, wird der Kamineffekt, der durch den Belüftungsschacht entsteht, unterstützt. Somit ist die Kühlleistung noch weiter erhöht.Advantageously, the holding portion is tubular and the drive portion is frusto-conical, wherein the inner diameter of the holding portion is larger than the inner nendurchmesser of the drive section. The holding portion is suitably adapted to the dimensions of the interrupter, which is provided for mounting in the insulating housing. In order to avoid air pockets between the interrupter and the insulating material, an elastic padding is usually provided, which also compensates unter¬ different thermal expansions at higher temperatures of the interrupter and helps to prevent cracking of the insulating ¬ housing. By a frustoconical design of the drive section, which is arranged below the holding ¬ section, the chimney effect, which arises through the ventilation shaft, supported. Thus, the cooling capacity is increased even further.
Gemäß einer diesbezüglich zweckmäßigen Weiterentwicklung setzt die Begrenzungswandung des Belüftungsschachtes die ke¬ gelstumpfförmige Außenkontur des Antriebsabschnittes kontinu¬ ierlich und stufenfrei fort. Auf diese Weise ist sowohl ein Kamineffekt bereitgestellt, wobei gleichzeitig für ein mög- liehst kompaktes Isolierstoffgehäuse gesorgt ist.According to a further expedient in this regard, the boundary wall of the ventilation shaft continues the ke ¬ gelstumpfförmige outer contour of the drive section continu ously ¬ and steplessly continue. In this way, both a chimney effect is provided, while at the same time providing for a possibly most compact insulating material housing.
Zweckmäßigerweise sind Halteabschnitt und Antriebsabschnitt mittels einer Übergangsschulter miteinander verbunden. Dabei sind Halteabschnitt und Antriebsabschnitt aneinander ange- formt und einstückig ausgebildet, so dass das Isolierstoffge¬ häuse in einem Gussvorgang herstellbar ist.Conveniently, holding section and drive section are connected to each other by means of a transition shoulder. In this case, holding section and drive section are formed on one another and integrally formed, so that the Isolierstoffge ¬ housing can be produced in a casting process.
Vorteilhafterweise ist das Eingangsanschlussstück mit einem Kühlkörper verbunden, wobei der Belüftungsschacht so ausge- bildet ist, dass ein aus dem Belüftungsschacht austretender Luftstrom auf den Kühlkörper ausgerichtet ist. Ist der durch Isolierstoffgehäuse und Schaltröhre ausgebildete feststoff¬ isolierte Schalterpol für höhere Ströme ausgelegt, ist es zur weiteren Wärmeabführung vorteilhaft, das Eingangsanschluss¬ stück mit einem Kühlkörper wärmeleitend zu verbinden, so dass die Oberfläche des wärmeleitenden metallische Materials, an der sich eine hohe Wärmeaustauschrate mit der Umgebungsluft einstellt, vergrößert ist. Durch die Ausrichtung des Luft¬ stromes auf den Kühlkörper erhöht sich die Kühlleistung be¬ trächtlich, so dass auch größere elektrische Ströme be¬ herrschbar sind.Advantageously, the inlet connection piece is connected to a cooling body, wherein the ventilation shaft is designed such that an air flow emerging from the ventilation shaft is aligned with the cooling body. Is designed by Isolierstoffgehäuse and interrupter solid ¬ insulated switch pole designed for higher currents, it is for further heat dissipation advantageous to heat-conduction connect the input terminal ¬ piece with a heat sink, so that the surface of the heat-conductive metallic material, at which sets a high rate of heat exchange with the ambient air, is increased. By aligning the air ¬ current to the heat sink, the cooling capacity increases be¬ significant, so that even larger electrical currents are be ¬ controlled.
Zweckmäßige Ausgestaltungen und Vorteile sind Gegenstand der nachfolgenden Beschreibung unter Bezug auf die Figur der Zeichnung, wobei gleich wirkende Bauteile mit gleichen Be¬ zugszeichen versehen sind und wobeiAdvantageous embodiments and advantages are the subject of the following description with reference to the figure of the drawing, wherein like-acting components are provided with the same Be ¬ zugszeichen and wherein
Figur 1 eine perspektivische Darstellung einesFigure 1 is a perspective view of a
Ausführungsbeispiels des erfindungsgemäßen Isolier¬ stoffgehäuses zeigt,Embodiment of the invention Isolier¬ material housing shows
Figur 2 das Isolierstoffgehäuse gemäß Figur 1 in einer perspektivischen Draufsicht von oben und Figur 3 eine Draufsicht auf das Isolierstoffgehäuse von unten und somit das Innere des Gehäuses zeigt.Figure 2 shows the insulating material according to Figure 1 in a perspective plan view from above and Figure 3 shows a plan view of the insulating material from below and thus the interior of the housing.
Figur 1 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Isolierstoffgehäuses 1 in einer perspektivischen Darstellung. Das Isolierstoffgehäuse 1 verfügt über einen im Wesentlichen hohlzylindrisch ausgebildeten Halteabschnitt 2 sowie über ei¬ nen kegelstumpfförmigen Antriebsabschnitt 3, der sich an den Halteabschnitt in einer Längsrichtung anschließt und einen im Vergleich zum Halteabschnitt 2 vergrößerten Innendurchmesser aufweist. Am oberen Ende des Halteabschnittes 2 ist eine Auf¬ nahmehülse 4 ausgebildet, in der ein Eingangsanschlussstück 5 aus Kupfer eingegossen ist. Zur Befestigung einer figürlich nicht dargestellten Vakuumschaltröhre ist hinter der Aufnah- mehülse 4 eine Montageöffnung 6 vorgesehen, durch die hin¬ durch die Vakuumschaltröhre fest mit dem Eingangsanschluss¬ stück 5 verschraubbar ist.Figure 1 shows an embodiment of the insulating material according to the invention 1 in a perspective view. The insulating housing 1 has a holding portion 2 of substantially hollow cylindrical shape and a frustoconical drive section 3, which adjoins the holding section in a longitudinal direction and has an enlarged inner diameter compared to the holding section 2. At the upper end of the holding portion 2 is an acquisition on ¬ sleeve 4 is formed, in which an input connector 5 is cast of copper. For fastening a vacuum interrupter, not shown in the figure, behind the receptacle mehülse 4 a mounting hole 6 is provided, through which hin¬ by the vacuum interrupter firmly with the input terminal ¬ piece 5 can be screwed.
An dem Antriebsabschnitt 3 ist ebenfalls eine Aufnahmehülse 7 angeformt, in der ein Abgangsanschlussstück 8 eingegossen ist. Durch die Aufnahme sowie die elektrische Verbindung ei¬ ner Vakuumschaltröhre mit dem Eingangsanschlussstück 5 bezie¬ hungsweise mit dem Abgangsanschlussstück 8 ist ein feststoff- isolierter Schalterpol realisiert. Das Eingangsanschlussstück 5 ist zum Anschluss an eine Hochspannungsleitung vorgesehen, die eine auf das Erdpotential bezogene Spannung von 10 bis 50 KV aufweist. Im eingeschalteten Zustand der Vakummschaltröhre liegt auch das Abgangsanschlussstück auf Hochspannungspoten- tial. Zur Verlängerung des Kriechweges zwischen einem aufOn the drive section 3, a receiving sleeve 7 is also integrally formed, in which a discharge connection piece 8 is cast. By recording as well as the electrical connection ei ¬ ner vacuum interrupter with the input terminal 5 or with the outgoing connecting piece 8 is a solid-insulated switch pole realized. The input terminal 5 is provided for connection to a high voltage line, which has a referenced to the ground potential voltage of 10 to 50 KV. When the vacuum interrupter is switched on, the outgoing fitting is also at high voltage potential. To extend the creepage path between one on
Erdpotential liegenden Sockels 9 des Isolierstoffgehäuses 1, dienen Außenrippen 10.Ground potential lying base 9 of the insulating housing 1, serve outer ribs 10th
Der Halteabschnitt 2 geht teilweise über eine Übergangsschul- ter 11 in den Antriebsabschnitt 3 über. Im hinteren Teil des Isolierstoffgehäuses 1 ist hingegen ein Belüftungsschacht 12 erkennbar, dessen Eintrittsöffnung im Übergangsbereich zwi¬ schen Antriebsabschnitt 3 und Halteabschnitt 4 ausgebildet ist. Dabei wird die Außenkontur des Antriebsabschnittes 3 durch die umfänglich äußere Begrenzungsfläche des Belüftungs¬ schachtes 12 kontinuierlich fortgesetzt, so dass in dem Be¬ reich des Belüftungsschachtes 12 Übergangsschultern 11 ver¬ mieden sind. Mit anderen Worten setzt die Begrenzungswandung des Belüftungsschachtes 12 die Außenkontur des Antriebsab- Schnittes 3 kontinuierlich und stufenfrei fort. Der Belüf¬ tungsschacht 12 umschließt mehr als die Hälfte des zylindri¬ schen Halteabschnittes 3, wobei Haltestäbe 14 zur mechani- sehen Stabilisierung des Belüftungsschachtes 12 vorgesehen sind.The holding section 2 partially transitions over a transition shoulder 11 into the drive section 3. In the rear part of the insulating housing 1, however, a ventilation shaft 12 can be seen, the inlet opening in the transition region zwi¬'s drive section 3 and holding portion 4 is formed. The outer contour of the drive section 3 by the peripherally outer boundary surface of the ventilation ¬ shaft 12 will be continued, so that in the loading ¬ of the ventilation shaft 12 rich transition shoulders 11 ver¬ are avoided. In other words, the boundary wall of the ventilation shaft 12 continues the outer contour of the drive section 3 continuously and steplessly. The Belüf ¬ tung bay 12 encloses more than half of the cylindricity ¬ rule holding portion 3, wherein the holding rods 14 to the mechanical see stabilization of the ventilation shaft 12 are provided.
Figur 2 zeigt das Isolierstoffgehäuse gemäß Figur 1 in einer perspektivischen Darstellung von oben. Es ist erkennbar, dass sich das Eingangsanschlussstück 5 über die Montageöffnung 6 hinweg erstreckt, so dass der nachträgliche Anschluss der Va¬ kuumschaltröhre durch Verschrauben ermöglicht ist. Ferner ist eine Befestigungsrippe 15 erkennbar, die zur Stabilisierung des Isolierstoffgehäuses 1 oder des feststoffisoliertenFigure 2 shows the insulating material according to Figure 1 in a perspective view from above. It can be seen, the input terminal 5 that via the mounting port 6 extends away so that the subsequent connection of the Va ¬ kuumschaltröhre is provided by screwing. Furthermore, a fixing rib 15 can be seen, which is used to stabilize the insulating housing 1 or the solid-material insulated
Schalterpols vorgesehen ist, wenn dieser mit benachbart ange¬ ordneten weiteren Schalterpolen zu einem Schalter zusammenge¬ setzt ist. Dabei ist jeder Schalterpol zum Schalten einer Phase eines Drehstromnetzes vorgesehen.Switch pole is provided when this is zusammenge¬ with adjacent ange ¬ arranged further switch poles to a switch sets. In this case, each switch pole is provided for switching one phase of a three-phase network.
Figur 3 zeigt das Innere des Isolierstoffgehäuses 1 in einer Draufsicht auf die Unterseite des Isolierstoffgehäuses 1. Es ist erkennbar, dass das Isolierstoffgehäuse 1 durch Bohrungen 16 in dem Sockel 9 fest verschraubbar ist. Weiterhin ist er- kennbar, dass im vorderen Bereich die Übergangsschulter 11 ausgebildet ist, während sich der Belüftungsschacht 12 quasi durch eine Aussparung in der Übergangsschulter 11 im oberen Bereich erstreckt. Die beiden Schmalseiten 13 des Belüftungs¬ schachtes 12 spannen zu einem Mittelpunkt 15 des Halteab- Schnittes 2 einen Winkel von über 180 Grad auf. Ferner ist erkennbar, dass sich der Belüftungsschacht 12 zu seiner vom Sockel 9 abgewandten Austrittsöffnung hin verjüngt, so dass ein die Kühlleistung erhöhender Kamineffekt erzeugbar ist. Nach der Montage der Vakuumschaltröhre in dem Halteabschnitt 2 wird im Inneren des Antriebsabschnittes 3, insbesondere auf der Höhe Abgangsanschlussstückes 8, also unterhalb der An¬ saugöffnung des Belüftungsschachtes 12, Wärme erzeugt. Diese entsteht vor allem an einer Bewegkontaktverbindung, welche die elektrische Anbindung der beweglich geführten Schalt¬ stange der Vakuumsehaltröhre an das ortsfeste Abgangsan¬ schlussstück übernimmt. Eine solche Bewegkontaktverbindung umfasst beispielsweise ein oder mehrere Strombänder, einen Schleifkontakt, einen Rollenkontakt oder dergleichen. Die er¬ höhte Wärmeentwicklung an der Bewegkontaktverbindung ist auf höhere Stromübergangsverluste zurückzuführen. Durch die An¬ ordnung der Bewegkontaktverbindung genau unterhalb der An¬ saugöffnung des Belüftungsschachtes 12 kann die aufsteigende Wärme direkt in den Belüftungsschacht eintreten, so dass die Kühlleistung beträchtlich erhöht ist. Labyrinthartige Strö¬ mungswege der Luft, wie im Stand der Technik, sind erfin¬ dungsgemäß vermieden. FIG. 3 shows the interior of the insulating housing 1 in a plan view of the underside of the insulating housing 1. It can be seen that the insulating housing 1 can be firmly screwed into the base 9 through bores 16. Furthermore, it can be seen that the transitional shoulder 11 is formed in the front region, while the ventilation shaft 12 extends quasi through a recess in the transitional shoulder 11 in the upper region. The two narrow sides 13 of the ventilation ¬ shaft 12 clamp to a center 15 of the Halteab- section 2 at an angle of about 180 degrees. Furthermore, it can be seen that the ventilation shaft 12 tapers to its outlet opening facing away from the base 9, so that a chimney effect which increases the cooling power can be generated. After mounting the vacuum interrupter in the holding section 2, heat is generated in the interior of the drive section 3, in particular at the level outlet connection piece 8, that is, below the on ¬ suction of the ventilation shaft 12. This arises mainly on a Bewegkontaktverbindung, which the electrical connection of the movably guided Schalt¬ rod of Vakuumsehaltröhre takes over the stationary Abgangsan ¬ final piece. Such a moving contact connection comprises, for example, one or more current bands, a sliding contact, a roller contact or the like. The He ¬ increased heat development at the Bewegkontaktverbindung is due to higher power transfer losses. By ¬ At the Bewegkontaktverbindung order just below the An¬ suction opening of the ventilation shaft 12, the rising heat from directly entering the ventilation shaft so that the cooling capacity is considerably increased. Maze-like Strö ¬ tion routes the air as in the prior art, are OF INVENTION ¬ dung according avoided.

Claims

Patentansprüche claims
1. Isolierstoffgehäuse (1) mit einem zur Aufnahme einer Schaltröhre eingerichteten Halteabschnitt (2), der mit einem Eingangsanschlussstück (5) ausgerüstet ist, und einem sich an den Halteabschnitt (2) in einer Längsrichtung anschließenden Antriebsabschnitt (3) , der eine Antriebsöffnung zum Einleiten einer Antriebsbewegung in die Schaltröhre aufweist und der mit einem Abgangsanschlussstück (8) ausgerüstet ist, wobei ein mit einem Innenraum des Antriebsabschnitts (3) kommuni¬ zierender Belüftungsschacht (12) vorgesehen ist, d a d u r c h g e k e n n z e i c h n e t , dass der Belüftungsschacht (12), den Halteabschnitt (2) kra- genförmig umschließt.An insulating housing (1) having a holding section (2) adapted to receive a switching tube and equipped with an input terminal (5) and a drive section (3) adjoining the holding section (2) in a longitudinal direction and having a drive opening for comprises introducing a drive movement in the switching tube and is equipped with an outgoer connecting piece (8), one with an internal space of the drive portion (3) communi ¬-equitable ventilation shaft (12) is provided, characterized in that the ventilation shaft (12), the holding portion ( 2) encircles.
2. Isolierstoffgehäuse (1) nach Anspruch 1 d a d u r c h g e k e n n z e i c h n e t , dass in einer Querschnittsansicht die beiden schmalseitigen Begrenzungswandungen (13) des Belüftungsschachtes (12) bezüg- lieh des Mittelpunktes (15) des Halteabschnitts (2) einen Winkel von wenigstens 40 Grad aufspannen.2. Isolierstoffgehäuse (1) according to claim 1 d a d u r c h e c e n e s in that the two narrow-side boundary walls (13) of the ventilation shaft (12) with respect to the midpoint (15) of the holding section (2) form an angle of at least 40 degrees.
3. Isolierstoffgehäuse (1) nach Anspruch 1 oder 2 d a d u r c h g e k e n n z e i c h n e t , dass der Belüftungsschacht (12) sich in Längsrichtung zu sei¬ nem vom Antriebsabschnitt (13) abgewandtem Ende hin verjüngt.3. insulating housing (1) according to claim 1 or 2, characterized in that the ventilation shaft (12) tapers in the longitudinal direction to be ¬ nem from the drive section (13) facing away from the end.
4. Isolierstoffgehäuse (1) nach einem der vorhergehenden Anspüche d a d u r c h g e k e n n z e i c h n e t , dass der Halteabschnitt (2) rohrförmig und der Antriebsab¬ schnitt (3) kegelstumpfförmig ausgebildet ist, wobei der In- nendurchmesser des Halteabschnitts (2) kleiner ist als der Innendurchmesser des Antriebsabschnittes (3) .4. Isolierstoffgehäuse (1) according to one of the preceding Anspüche characterized in that the holding portion (2) is tubular and the Antriebsab ¬ section (3) is frusto-conical, wherein the In Nendurchmesser of the holding portion (2) is smaller than the inner diameter of the drive portion (3).
5. Isolierstoffgehäuse (1) nach Anspruch 4 d a d u r c h g e k e n n z e i c h n e t , dass die Begrenzungswandung des Lüftungsschachtes (12) die kugelstumpfförmige Außenkontur des Antriebsabschnittes (3) kontinuierlich und stufenfrei fortsetzt.5. insulating housing (1) according to claim 4 d a d u r c h e c e n e c e s in that the boundary wall of the ventilation shaft (12) continues the ball-shaped outer contour of the drive section (3) continuously and steplessly.
6. Isolierstoffgehäuse (1) nach einem der vorhergehenden An¬ sprüche d a d u r c h g e k e n n z e i c h n e t , dass Halteabschnitt (2) und Antriebsabschnitt (3) zumindest teilweise mittels einer Übergangsschulter (11) verbunden sind.6. Insulating housing (1) according to one of the preceding claims, in that the holding section (2) and drive section (3) are connected at least partially by means of a transition shoulder (11).
7. Isolierstoffgehäuse (1) nach einem der vorhergehenden An¬ sprüche d a d u r c h g e k e n n z e i c h n e t , dass das Eingangsanschlussstück (5) mit einem Kühlkörper ver¬ bunden ist, wobei der Belüftungsschacht (12) so ausgebildet ist, dass ein aus dem Belüftungsschacht (12) austretender Luftstrom auf den Kühlkörper ausgerichtet ist.7. Isolierstoffgehäuse (1) according to one of the preceding An¬ claims characterized in that the input terminal (5) ver¬ with a heat sink is connected, wherein the ventilation shaft (12) is formed so that an out of the ventilation shaft (12) exiting air flow the heat sink is aligned.
8. Feststoffisolierter Schalterpol mit einem Isolierstoffge¬ häuse (1) in dem eine Schaltröhre angeordnet ist, g e k e n n z e i c h n e t d u r c h ein Isolierstoffgehäuse (1) nach einem der vorhergehenden An¬ sprüche. 8. solid-insulated switch pole with a Isolierstoffge ¬ housing (1) in which a switching tube is arranged, characterized by an insulating material (1) according to one of the preceding An¬ claims.
EP05786986A 2004-09-24 2005-09-13 Insulating material housing with a ventilation shaft Active EP1792324B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004047260A DE102004047260B4 (en) 2004-09-24 2004-09-24 Insulating housing with ventilation shaft
PCT/EP2005/054544 WO2006032619A1 (en) 2004-09-24 2005-09-13 Insulating material housing with a ventilation shaft

Publications (2)

Publication Number Publication Date
EP1792324A1 true EP1792324A1 (en) 2007-06-06
EP1792324B1 EP1792324B1 (en) 2009-05-06

Family

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US (1) US20080078664A1 (en)
EP (1) EP1792324B1 (en)
KR (1) KR20070055571A (en)
CN (1) CN100555489C (en)
AT (1) ATE430984T1 (en)
DE (2) DE102004047260B4 (en)
RU (1) RU2366023C2 (en)
WO (1) WO2006032619A1 (en)

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US20080078664A1 (en) 2008-04-03
ATE430984T1 (en) 2009-05-15
RU2366023C2 (en) 2009-08-27
DE502005007251D1 (en) 2009-06-18
EP1792324B1 (en) 2009-05-06
DE102004047260A1 (en) 2006-03-30
CN101027739A (en) 2007-08-29
KR20070055571A (en) 2007-05-30
RU2007115415A (en) 2008-10-27
WO2006032619A1 (en) 2006-03-30
CN100555489C (en) 2009-10-28
DE102004047260B4 (en) 2006-08-03

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