DE1941745U - INSULATED ELECTRIC SWITCHGEAR. - Google Patents

Description

P.Ä. 21? 566 * 26. U6

? rankfurt / Main ₉ (KS-Za / St

AJMELBOTd

Electrical switchgear encapsulated in insulating material

The leuera & g relates to an electrical device encapsulated with insulating material with a built-in screen that contains a fusible conductor arranged inside it. Switching devices of this type are known · With them, all of the device parts are encased in a closed insulating material so that there is no such thing as a light arc file, but the encapsulation surrounds it. di © Sctoelasiaiieraags the s in the ublie & Weise is designed "d, h · they ordered from SWEi letallarmatmren, slcß zwisohen the eia Isolierstoffrolir both sides TersoMließea mad aufnekaen the (Selhmelaleiter. The Se3amel she is older s © with SWEi Isolierstoffscliiülaten mmgebea" the zusätaliök durcla a Air gaps are separated from each other. Such © JUäQr & amgen are used in wide areas of the "üecfenik" as HIaB-names aur heat insulation, d _e a * sur? © reduction of undesirable heat dissipation ι, but in a veiled fusible conductor a low gas conductor already occurs A significant amount of heat "which must be dissipated to the environment _? so that the device is not damaged."

Here's the blessing state of innovation provides a remedy waae. This is because "the hollow insulating body of the safety device is at least partially outside the insulating material enclosure of the safety device," according to a particularly advantageous embodiment, only the electrically conductive file of the safety device, i.e. the metal fittings on both sides of the insulating material encapsulation Seräts enclosed, Bieses

taker is completely free of arcing points, without the heat dissipation from the fusible conductor or the hollow insulating body of the Sielieniag being additionally hindered. The hollow body of insulating material is surrounded by the ambient air ₉ so that a good cooling effect occurs. The electrical isolation of the metal armature from the surroundings can be effected particularly easily by the fact that the material encapsulation of the device has a stuffing-like structure. This can also be used for mechanical fastening "Furthermore, for the Kapselitmg Bielieningsarmaturen separate insulating parts used iirerden _s are thrown off along with the Sieheruag Tom Serät. In this case the elektrisehe Ter * · MM can tiamg with the ßerät üler Steckk © ntakte carried * 33ie Si © aermag with Decals & cash capsule Ling parts can be held as an assembly for eiaen Ans exchange stock "wofeei, the enclosure parts natuer borrowed wiedernolt used

A guiding example of the leueruag is in the following nlaer beseJiriebea * mnd gwar, the figure shows a section through the capsule stomach parts in the plane of the security axis. 1 is the Siehertiag, which consists of the insulating material hollow body 2 and the "two metal fittings 3 and 4" The metal fittings have cylinder-like extensions 3 and 6 ₀ which are in engagement with the corresponding resilient contacts 7 ^ acL S "The metal fittings on both sides and their Eontakt © are of shell-shaped insulating parts 9 mnd 10 iamgeben _s wherein the contacts pressed 7 and 8 vorgmgsweise susammen with the insulating material or are cast into it "Bie insulator parts 9 and 10 have, at iferem a Bnde a thread 11 and 12 'which for receiving A union nut 13 or 14 made of insulating material is provided

act, di © see in the cylindrical gap between insulating hollow body 2 uad load the Isolierstoffsohalen 9 trad 10 bef. Mier & tireh creates the effect bucket Stopfbmehsdiehtimg * if the Siohtkörper · nuts are braced against the Metallanaaturen 5 and 4 of control through the Übeimrf * "pressuag For the purpose of uniform composition" of Biehtkoa ^ by are the letallarmaturea the Abstiitaringe 19 and 20 * B: euek- 15/16 u & d support rings 19/20 siad filled in two parts in order to © iaen linTäaa on esaögliclaea * BIe in the insulating material parts 9 and 10 attached contacts f w & a 8 siad at their ends facing away from the security for the arnfBatoe & the plug-in contacts on the device-side 22 knuckled. These SteekkontaktTerbiadinigea are iron device-side 23 and 24 as well as Tom sicäertiagsseite Isolierstoffortsätsen 25 and 26 surrounded »They allow the identification of the fuse together with the insulating material parts 9 waä united with ikr ati. 10 · It is

to keep the air gap between the metal fittings of the Sickeruag tmd iiirer Isolierstoffamnülluag 9 and 10 da4mi? @B free from grim sensations ₉ that the wall of the insulating part is supplied with conductive varnish up to the stuffing box scrap and the air gap is electrified. Amen can excrete or germinate both union nuts 13 bsw. Seia provided with a Yerlängenmg 27 14, the star Tergrößerung of Spaiiniangsabstandes and thus as beris & rragssekutz serves ₉ © Jane that thereby the convective strömimg is markedly hindered _ö

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1 figure

Claims (1)

P.Ä. 217 5eG * 26.i Is © liers1s © ff encapsulated electrical holding device with built-in fuse _s which a hollow insulating body a? A fusible conductor arranged in its interior contains _s characterized by the fact that the hollow insulating body (2) of the fuse (1) is at least partially free from the insulating material encapsulation of the electrical device. Electrical device encapsulated in insulating material naela. 1 ₉ thereby _i ^ gekennzeiGimet. ^^ because the metal ' (3/4 ·) of the fuse (1) within the ls © lier ~ material capsule of the switch @ device are located » ! 1 mnd 2 _S thereby gekenageichnet _{i? I} that the insulation * (2) of the fuse (1) against the Insulated encapsulation of the switchgear by eiae (15/16/17/18) is sealed 4 »Electrical switchgear according to 1 Tais 3 »identified by this. _{? i} that the metal (3/4) of the fuse (1) are surrounded by separate insulating parts (9/10) which are attached to the fuse (1) from the switching device «