DE1912313A1 - Electrical switch with two fixed switching elements and two movable switching bars - Google Patents

Description

Patent attorney ^! 2 ± £ L —— \ * MH _n 4QC ₀ ST

• Jipl. Ing.C. Wallach Dipl. Ing. G. Koch

Dr. T. Halbach ^{u 873} ^ ⁽

• M3.I'm 2 1 Q 1

ifingeratr8T _e L24 (a7ö '

KafaA'Aktiebolag uns ti S-351 01 Suad avail, Sweden

Electrical switch with two fixed switching elements and two movable switch brackets,

The present invention relates to an electrical switch with two spaced apart and in alignment arranged fixed contact members ^ and two movable contact brackets, which the space between bridge the two fixed contact links

This switch has to be to beBtimmtj used for an electric ski old plant, is distributed in the electrical energy to individual energy consumers, "Since such switchgear (see, Teknisk Tidskrift, Stockholm I966, S ₆₄₀₂₎ often require a lot of space, eg in the form of cabinets with a length of up to several tens of meters, it is desirable to carry out the separately arranged for each consumer Sohaltgeräte a möglichot crowded, yet secure V.'eise ,, units cabinet They have a certain Hinimalbreite, eg ₀ 0.6m, the can not be reduced without a danger in ease Bedienbärkeit and safety of the staff created "Ee applies therefore to exploit this cabinet width to best Ueise what can happen in that disc-shaped" GerMteeinheiten be provided; this means that the devices must be designed to be low so that the largest possible number of device units can be accommodated in each cabinet unit .

009840/0570

In addition, every device unit in most Cases contain a fuse link of the knife type per phase line. So there would be a profit in the In terms of space saving, if the connection contact members of the fuses belong to a sum switch Can form part, but you have to avoid that the contact members of the fuses from one at Turning off the switch, resulting arcs are attacked because the contact members of the fuses not intended to begin with, through the puncture of the switch to become heat affected and corroded. On the other hand, the contact elements of the fuses can without danger form a fulcrum for pivotable switching elements that are included in the switch, creating a special Construction element for the pivot point of the switch can be saved *

You can also use the swiveling switching elements of the switch train as resilient contact members, which clamp the connection contact members to fuses «The This gives the switch a secondary function, namely to serve as a receiving and holding element for the fuse, and thus makes a further contribution to the goal in mind, the space required for the switching device to reduce without reducing the security requirements «, Finally, the space can be further reduced by the fact that the enclosure of the device unit so as close as possible to the switch and the socket brings, but it must be noted that the walls of the envelope are made of such insulating material that the Current conductors are not influenced from a magnetic point of view and can withstand very high, shock-like temperatures, which can occur in the case of a short circuit in the enclosure surrounding the switching device. As a result of that

009840/0579

191231

The magnetic influence on the current conductor is not eliminated, the dynamic forces of the current can be used together with a point hole chamber in order to extinguish the arcing which occurs when the current is interrupted «

The above-mentioned goals and their basic realization are achieved by a so-called holder which is characterized in that the contact brackets are pivotable about the one fixed contact member and are arranged in contact closure position on both sides of the fixed contact members, as well as in contact opening position with their one end opposite the one fixed contact member and with its middle part against a crouching member, preferably made of insulating material, which is arranged on an actuating shaft extending transversely to the contact brackets through the space between the fixed contact members and the contact brackets so that the other end of the contact bracket is calibrated in the contact opening position is located at a distance from the other fixed contact member, wherein the contact clips are influenced by a spring member that the contact clips against the two stationary contact members or _s against the locking organ holds.,

Further advantages and details of the invention emerge from the exemplary embodiments on the basis of Drawing; in this own

Pigc 1 is a schematic section of one according to FIG Invention trained switch and

009840/05? 9

ORIGINAL INSPECTED

- - * - '1912313 is and / whose application ia a Bdljaltgerätstäs, ^ unit , which is contained in an electrical switchgear}

ng. 2 is a cut length of the UnU ίΙ-Π ia fig * J

Fig. 3 shows the arrangement of the switching units ia "in" Sohaltanlagenfaoh. ■

The switching device according to? Ig * 1 and 2 ustfaSt sia® 10 made of fire-resistant insulating material of the same kind, does not contain any magnetic material, so that the arches of the sohaltgerätes remain through the dia see üateriüi “The base plate 10 is in a Xut 12 la bull 14 au »Same material as that of the raohiebbar, eo that the base plate 1Caue can be drawn up, among other things, to the · Blasti part · on the 4toeer plate. The örundplatt® 10 let sit two Bolsen 16 and 18 old on the ο β oühraubsnföraig wlokalten springs 20 and 22, which each act on a contact bridge 24 bfttr · 26, irelohe on the one side «against« 1b in the hole 14 seen fixed contact piece 28 and on the other side for an exchangeable Boras! ofeeruag old AtteebluSkon ^ aktaessern 32 and 34 a & lleger · 9κβ old dea In the drawing, right _{pair of contact brackets 24 * 9} 26 * susaaaenarbeitende fixed contact pieces 28 * bat tie * much larger length than the Koniaktetüok 28 «among others a FankenlöBohkaaBer known type old sheet metal 36 su can carry.

The contact bracket 24 »26 can be from the SehlleÜleee

dea left rope of FIG. 1 tu the Offnusgelage »which are shown in the right section of the figure let tm &

009140/0578 ob ^ nal, nspected

existing with a Ser at DIE ^ mounted »of insulating material by means of an actuating parts 38 Hookeuglied 4O _9, the karni are guided in a horizontal position by means of a handle 42 _s in which the contact bridges 24, 26 cause a Stroraschluß, or in a vertical position (right in FIG _{e 1)} in which the contact bracket 24 ^β and 26 ^s from the one AascaluSkcmtalctinesiser 52 of the fuse 30 are removed from d © a fixed contact member 28 'or * if also the left Mockenglied 40 in © ine perpendicular © position * Here you four the contact bracket 24j 26 bsw »24 ^s 26 * do their © respective contact points on the contact member 28 torn, connection jessör 34 pivoted against the force of the springs 20, 22.

In the case of Stroarnnterbreehiing by means of the switching device shown in the Zeiohamsg, the interruption point 24% 28 ', 26' on the right in the drawing is always opened, one condition being that the current flows from the contact piece 28 "in the bi-cutting indicated by the arrow 44 * so that the resulting in Eontaktb'ffnung arc 46 $ of the aims his I »ength ton. the egg ergiestelle away to enlarge, by the electrodynamic force of the current in the Blechvorriohtung 36 of FunkenlöschkanäBier hineingetrie ben is, the Blechvorriohtuag a augeabliokliohe cooling of the high gas temperature _β of the I "iohtbog © ns and a thereby achieved deletion causes this condition that nä ch is the point of interruption in the quenching chamber is first opened. 1, characterized forcibly satisfied" that the two actuating shafts are locked 38 arittels a mechanism with each other wherein the Hechanismus of a rod 348 is _y which in its longitudinally ung is movable and on your one. The end cooperates with a cam member 50 on the right actuating shaft 38 and at its other end with a bore 52 in the left actuating shaft 38 o The rod 48 is controlled by a tension spring

• A

009840/0579

. 19123T3

- ο -

held, which abuts the Ncokenglied 50 "D®r lußgsmeohaniBiaua is / else effective in the V, which the rod in any position when the auier ifookengliad 40 is at right operating shaft 38 in a vertical position (wean the right üatsrbreeliUögsBt © © g !! @ Sffa.Qt is) j the Hake actuation shaft 38 epsrrt ^ Ub iie to bridge the left contact 24 ₉ 26 in'ihre off mirages fflhrta, is it therefore necessary to first iie the two right contact brackets 24 ^? _t 2β ^{: i} . is itee 9 position su lead *

How from? _{Ig s} 2 liervorgsht »are a isehrer © places in a common plane rearwardly arranged, usually three in a broad tissue jet (a capital arrangement), If one is missing in the place, the right and danaeli are opened as the left refraction point, before the δ-x-viadplatte © 10 of the hull H are Merauegecogen so that only TI® fixed Eontaktstticke 28 28 gurückbleiben kana _s, 'with the Lösehkamnern 36 in the shell. This makes it easy to examine the individual parts of the interruption points on the touad plate and in the cover and to identify the damaged! Parts, ζ, Β. to replace the fuses 30,

If fuses are not desired, they can be omitted, the contact pieces © 28 sieve, sweeping up to the left part of the contact bracket 24 S 26 ³ , or the fuses 30 are replaced by simple continuous metal pieces, v / elehe are indicated with dashed lines 30 ¹ *

The apparatus of l? Ig ₆ 3 comprises a cabinet 60 having a plurality of switching devices gessäS Fig α 1 and _S 2 the over-

009840/05 7 9

........: .-; w-ί ORIGINAL INSPECTED

1312313

arranged and connected to each other, the entrance side to the common “StaaösssaieMn 62” In a Stammsohienenkanal 64 a.o. to the Ausgengeeseit “to the cable 66, there are“ which eleVtrisctio Xnergie to deaden breweries ”. Leading · The Schbrenk §0 consists of the gleiofeea material% for the base plates 10 and envelopes 40, if not made of steel belts. vtirgeee & riebem let » In wtlohea, such steel sheets fall a sufficiently large distance from the current paths. of Sohaltgeräte have oUset u

If it happens, the actuating rings 38 can be provided with a Xraflu or drive pin, s «B. a Blektroaagnet or Aatriebsvoter »* ll" uog κα turn, the di · Sebalte "advises including the shafts 38" wipe Bineohalt- and Außecbeltet "vie 8ehßltsohtitsen be remotely operated ttnaea.

009846/0 ^ 79

Claims (1)

j Shall not g. ^j ä- t-.t * 3 ^ -_ - Q »L Claim 1. Electrical switch old two at a distance and aligned fixed, & öEtäktgli®tI®? n and two movable contact brackets »cover the space between the two stationary ones bridge, thereby g e k β η η ζ el ο ίιιι β t "d & S the contact clip (24 ', 26') around the one fixed « Contact member (34) pivotable and in contact scale on both sides of the fixed compact gliders (34, 28 ') arranged adjacent to these eiaä »eowie in contact opening position with one end towards it the one fixed contact member (34) and kit theira ™ 'middle part against a rorzugweiee made of insulating material existing hook member (40) rest, welenes on one across the contact brackets through the Zwisohenrauia between the fixed contact members ^ and the bracket extending actuating shaft (38) in such a way aa ^ eordaet is that the other end of the contact clip (24% 26 ') in contact open position see distance from the other fixed contact member (28 ») is located, wherein the contact clips are influenced by a spring member (20, 22) which holds the contact clips against the two Contact links bsw. against the Hoekenorgan holds tight. 2, switch according to claim 1, characterized in that the other fixed contact member (28 *) Ton a spark release resistor with quenching plates (36) is uneven, which are arranged at a distance Ton of the path of movement of the contact bracket (24 ', 26') « 3e switch according to claim 1, characterized in that the one fixed contact member (34) Ton a sneeze serf önnigon connector contact member on one Fuse (30) is formed. β / · D09840 / 0579 191231er Switch according to Claim 1, characterized in that g e k e η η ze it is worth t that the two fixed contact members (34, 23 ') by a surrounding the switch Sheath (10, 14) made of fireproof and non-magnetic insulating material extend and are fixed in the same. Switch to. Claim 1 and 4, characterized in that that the contact bracket (24 ', 26 «) and the actuating shaft (38) with the cam member (4Q) and the spring member (20,22) arranged on a plate (10) are, "can be seen from the cover (14)" Use of the switch according to claims 1-5, characterized marked that the other is knife-shaped Connection contact member (32) of the fuse (30) is a fixed contact member of a further switch of the smooth nature of the first-mentioned switch, where both switches are connected in series * Use of the switch according to spoke β, characterized in that "the actuation shafts (38,38 ^{1 of} the two Seheiter are interlocked with one another in such a way that the further Soaolter (24, 26) can only be switched off when you see the first switch (24% £ β ⁹ ) is in the open division » 009840/0579 40 . Blank page