DE1191889B - Pneumatically or hydraulically operated electrical switching or contact device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

H02c

German class: 21 c - 40/04

M54592VIIId / 21c
October 23, 1962
April 29, 1965

The invention relates to an electrical switching or contact device actuated by a pressure medium. It relates in particular to the water cooling of such a type rated for high amperage Furnishings. The switching or contact device according to the invention is distinguished from the known ones Versions both in terms of their mode of operation and in terms of cooling large current load.

The invention consists essentially in that ίο a pneumatic or hydraulic actuator attached to a mounting plate is provided is, furthermore, a water-cooled cross member provided with contacts, the contacts of which are fixed in place the contacts attached to the mounting plate interact, that further means are provided for moving the cross member with the aid of the actuation system are, as well as a pipe system for water cooling that passes through the cross member or to runs along it and is connected to the contacts attached to the mounting plate.

A further advantageous embodiment of the invention consists in that a pneumatic or hydraulic actuating device attached to a stationary mounting plate is provided, that a water-cooled cross member is also connected to the movable member of the actuating device, which carries the contacts, that furthermore, contacts that are stationary in the radial direction are provided which are carried by the mounting plate and with which the contacts of the water-cooled cross member come into engagement, that further flexible hose lines are provided which are connected to the contacts on the water-cooled cross member and actuated by pneumatically or hydraulically
electrical switching or contact device

Applicant:

William McGeoch & Company Limited,

Birmingham;

The Loewy Engineering Company Limited,

Bournemouth (Great Britain)

Representative:

Dipl.-Ing. R. Beetz and Dipl.-Ing. K. Lamprecht, Patent Attorneys, Munich 22, Steinsdorfstr. 10

Named as inventor:

Thomas William Gillett, Birmingham;

Augustus William Henry Banyard, Hamworthy

(Great Britain)

Claimed priority:

Great Britain October 26, 1961 (38 288)

There is engagement, which is movable on the water-cooled cross member carrying the current Part is attached.

These and other details of the invention will become apparent from the following description of some of the drawings illustrated embodiments. The F i g. 1, 1 a, 2, 2 a, 3 and 3 a each show liquid actuated electrical switching and contact equipment

Openings in the mounting plate are 35 lines according to the invention,
and the one cooling water circuit through the moving In F i g. la is shown a mounting plate α on

borrowed contacts and the current-carrying cross member which form the switching device according to the invention. is arranged. The housing b, b ^{1 of} the pneumatic

Another useful embodiment of the inven- ting device is by means of the screws b ² on training is that one is attached to a fixed 4 ° of the mounting plate α . The plunger b ³ works mounting plate attached pneumatic or hydraulic in a bearing b *, which is provided in the mounting plate α gelic actuating device, is also held.

a live, water-cooled cross member, the At the end of the plunger b ³ is a live

carries the movable contacts and rotates as well as fastened cross member c , which holds a water channel c ¹ with the movable member of the actuation 45 in a springy manner. This conductive cross member c carries is connected to each device so that when its two ends are actuated a cylindrical contact part c ² , a wiping or friction movement under pressure, ten spaced contact elements c ³ supply between the fixed and movable contacts contains.

he follows. Ten layers of individual slats

The rotating wiper 50 leaf springs d , which take place under pressure, are at the point d ¹ with an in the

movement can be achieved through a guide slot in the stationary part, which is connected to a pin in the mounting plate α provided insert. These leaf springs d are each connected by arms d *

509 567/287

Claims (1)

3 4 strengthens that contain adjustable screws ^{d 3} , which its axis. This results in a sliding relative movement cooperate with the ends of coil springs d ⁱ . supply between contacts r ¹ and /. The other ends of these coil springs i / ⁴ are on the In Figs. 3, 3a are also a busbar u Leaf springs d . and a copper pipe u ^{1 is} provided, the cooling water With the contact parts c ² is one end of a 5 leads. Furthermore, a copper-copper pipe e carrying cooling water is soldered. This tube e is slidably provided in tube u ² which, however, carries the adjacent stream of a copper tube e ¹ . The outer end of the rail, with which it is connected and which carries the lower tubes e, is covered by a flexible hose /, fixed contact t , is covered. Finally, the ends of which are denoted ^{by e 2} and p. a flexible piece of water hose available, which is attached to There is thus a circuit for the water i ° the pipe n ^{2 is} connected and for water cooling through the pipe e and in the current-carrying cross of the current-carrying cross member r , which is used with a carrier c provided through openings c ⁴ , c \ water outlet ν ^{1 is} provided. Then through the assembled copper pipe inside- The actuating device contains a compressed air half of the cylinder i denoted by the reference symbol f-, its piston i ³ with a sliding insulating copper pipe and from here to the hose piece /. 15 bumper V, / ^{2 is} connected, which is guided in a brass-If the plunger b ^{s is} actuated, the water bearing j with the mentioned slot s is removed. The crossbeam r made from cooled, current-carrying crossbeams c by the copper is connected to the insulating bars d, the water cooling system being connected to the upright but remaining freely movable opposite. f ³ is a water inlet or outlet for this. Another connected switch is permanently connected to the insulating rod V-, i ^2. 20 is the insulating material pressure plate /? as well as the four springs / · ² . In the configuration shown in FIGS. 2 and 2a, the arrangement described last represents the moving Leading example means h the mounting plate / your borrowed contact system. The two fixed contacts Fixed contact attached to the mounting plate h , consist of copper blocks t, which are 1 the actuator and V the head of the mounting plate h are worn. Piston of the actuating device, j is an on the 25 The arrangement according to FIGS. 3 and 3a acts Mounting plate h attached bracket part with which: a component j ^{1 is} pivotally connected. If compressed air is supplied to the cylinder i, part j ¹ moves the current-carrying cross member k , the piston i ³ and thus also the insulating material which contains the movable contacts k ^1. I ¹ is a rod V-, ζ ² , until the cross member r with the silver water pipe that touches the fixed contacts t along the current-carrying cross 3 ° contacts r ^1. The cross member k is arranged and soldered to this. carrier r has carried out its hub with it; The pressure-Es continues in a tube / ² , which at the point / ³ to plate ρ moves, however, under the effect of the cooling purpose to the fixed contact h ¹ -piston i ³ further, whereby the springs r ^{2 are} brought together. presses and thus the contact pressure between the m is a hose which comprises a high-current cable (with contacts r ¹ and t . During the example for 5000 A), the actuation process described at point m ¹ is connected to the current-carrying cross member k . a sliding wiping movement between the con-The piston j ¹ actuates the current-carrying cross-clocks r ¹ and t, through the rolling pin s \ the carrier k via a bolt η and an intermediate in the insulating ^{rod i a is} attached and in the switched compression spring η ¹ . This compression spring η ¹ is so 40 slot s of the main bearing j engages.
arranged that they press the contacts k \ h ¹ in the closing position firmly against each other. so: In the case of the FIG. 3 and 3a further illustrated with the lower fixed contact t is the copper embodiment of the invention, h means the tube u ^{2 is} soldered. This tube is with the movable mounting plate and 1 the actuating device. 45 contact r via the flexible tube ν made of rubber or V, i ² represent a sliding insulated rod connected to PVC. This tube ν bends while the actuating piston / ^{3 is} connected. ρ is an opening and closing movement of the switch unit. Spring pressure plate, which is connected to the end of the water at the point p ¹ through a sealed circle of insulating rod i ¹ . r is a flow-ring-shaped recess r ^l in the copper cross-guiding, water-cooled cross-member, which is provided with contact-carrier r and arrives via a further flexible clock r ¹ . Between the spring pressure hose v ¹ made of rubber or PVC either to a plate ρ and the cross member r are pressure springs r ^{2 in} front of the outlet, which is attached to the mounting plate or to be seen. an adjacent switch; in the latter case The cross member τ can move in the longitudinal direction, the described water circulation is repeated. The flows von.den compression springs r ² , move; he can 55 cooling system for the upper busbar is einferner on which the V Isolierstoffstange which rotate with the actuating piston / ^s connectedness times from the copper tube u \ to the back side, namely controlled busbar u is soldered.
from a guide slot s, which is in a fixed- _D ...
the part is provided and with one of the insulating claims:
fabric rod / ² attached pin s ¹ interacts. ^6o 1. Pneumatically or hydraulically actuated elec- If therefore the pneumatic or hydraulic control or contact device, there is an actuation system in the sense of a closing movement, which is characterized by the fact that one of the contacts is switched on, the pneumatic pressure attached to a mounting plate moves or plate ρ and the current-carrying cross member r in Rieh- hydraulic actuating device provided on the fixed contacts t, which is from the assembly ⁶ 5, furthermore a water-cooled and with contact plate h are carried. After the contacts of the cross members provided, the contacts of which have come into contact with, the mechanism /, f ¹ comes into operation with the contacts firmly attached to the mounting plate and rotates the current-carrying cross member r slightly to cooperate, so that further means for connecting pushing the cross member with the help of the actuation system are provided, as well as a pipe system for Water cooling that passes through the cross member or along it and with the on the Mounting plate attached contacts is connected. 2. Pneumatically or hydraulically operated electrical switching or contact device, thereby characterized in that a mounted on a stationary mounting plate pneumatic or hydraulic Actuating device is provided that further with the movable member of the actuating device a water-cooled cross member is connected, which carries the contacts that continue in Radial direction stationary contacts are provided, which are carried by the mounting plate and with which the contacts of the water-cooled cross member come into engagement that Furthermore, flexible hose lines are provided, which are connected to the contacts on the water-cooled Cross members are connected and passed through openings in the mounting plate and the one Form the cooling water circuit through the movable contacts and the current-carrying cross member. 3. Pneumatically or hydraulically operated electrical Switching or contact device, characterized in that one on a stationary mounting plate attached pneumatic or hydraulic actuator is provided, further a live, water-cooled cross member that carries the moving contacts and is rotatable and is resiliently connected to the movable member of the actuating device, so that at the actuation a wiping or wiping under pressure. Frictional movement between the fixed and movable Contacts takes place. 4. switching or contact device according to claim 3, characterized in that the below Rotary wiping motion under pressure through a guide slot in a stationary part is generated, in which a pin engages on one of the current-carrying, water-cooled crossbeams bearing moving part is attached. 5. Electrical switching or contact device, characterized in that a mounting plate is provided, an actuating device controlled by a pressure medium, which is operated by the Mounting plate is carried, a bearing provided in the mounting plate for the movable Organ of the actuating device, one with the movable organ of the actuating device connected current-carrying cross member with cooling water line, that also cylindrical contact parts are provided at the ends of the current-carrying cross member, which also with the cooling water line are connected, furthermore a number of leaf springs stacked together from lamellae, which carry contacts, which with the cooperate cylindrical contact parts that still one of the cylindrical contact part supported tube is provided which slides within a tube which is in the layered Leaf spring supporting member slides, and that one with the sliding tube for passage The flexible tube connected to the cooling liquid is provided, the whole arrangement being made in this way is that the cooling water circuit during a working cycle of the actuator preserved. 6. Switching or contact device, characterized in that a mounting plate is provided is, an actuator controlled by a pressure medium, one provided with contacts Cross member resiliently connected to one end of the movable member of the actuating device is connected that further a cooling water pipe along the edge of the contacts supporting cross member is provided, which is connected to a flexible hose piece, through which the cooling water is supplied and through which a movement of the cross member under Maintenance of the cooling water circuit is made possible. 7. switching or contact device according to claim 3, characterized in that one Mounting plate is provided, an actuating device controlled by a pressure medium, the is carried by the mounting plate and with its movable member an insulating rod is connected that a pressure plate is also connected to the insulating rod that continues to current-carrying, water-cooled and provided with contacts cross members a longitudinal and Rotary movement can perform on the insulating rod that further springs between the pressure plate and the cross member are provided and that a mechanism provided with a guide slot is connected to the movable member of the actuator, through which the cross member during the contact closing movement with respect to the stationary ones carried by the mounting plate Contacts is rotated slightly. 8. switching or contact device according to claim 7, characterized in that the fixed Contacts are water-cooled and that the water-cooling of the current-carrying cross member two flexible hose pieces connected to the cross member is effected. 1 sheet of drawings 509 567/287 4.65 © Bundesdruckerei Berlin