Switching device arrangement

Abstract

A switching device arrangement has an encapsulation housing and also a drive device. The drive device is supported on the encapsulation housing. The drive device is arranged at a distance from the encapsulation housing via a spacer device. A receiving space is delimited by the spacer device.

Claims

1. A switchgear assembly, comprising: an encapsulating housing; a drive device and a kinematic chain connected to said drive device for transmitting a movement of said drive device into an interior of said encapsulating housing; and a spacer device mounting said drive device to said encapsulating housing, said spacer device forming a receiving space between said drive device and said encapsulating housing; said encapsulating housing including a bulging wall formed with a flange surface, and said spacer device being mounted on and enclosing said bulging wall.

2. The switchgear assembly according to claim 1, wherein a portion of said kinematic chain is arranged in said receiving space.

3. The switchgear assembly according to claim 1, wherein said kinematic chain is configured in said receiving space to convert a movement to be transmitted from a rotational movement into a translational movement, or vice versa.

4. The switchgear assembly according to claim 1, wherein said kinematic chain is divided in said receiving space into a plurality of branches, or vice versa.

5. . The switchgear assembly according to claim 1, wherein said kinematic chain includes a yoke body.

6. The switchgear assembly according to claim 1, wherein said encapsulating housing is formed with a cover and said spacer device is arranged on said cover.

7. The switchgear assembly according to claim 1, wherein said spacer device is disposed so that the movement is introduced in a fluid-tight manner into the interior of said encapsulating housing.

8. The switchgear assembly according to claim 1, wherein said spacer device is annular.

9. The switchgear assembly according to claim 1, which comprises an adapter assembly connecting said drive device and said spacer device to one another.

10. The switchgear assembly according to claim 1, wherein the interior of said encapsulating housing is filled with an electrically insulating fluid.

11. The switchgear assembly according to claim 1, wherein said encapsulating housing is formed with a flange surface and wherein a phase conductor is supported on said flange surface in an electrically insulating fashion.

12. The switchgear assembly according to claim 11, which comprises a circuit breaker unit disposed in the interior of said encapsulating housing, said phase conductor forming a part of said circuit breaker unit.

13. The switchgear assembly according to claim 1, wherein said bulging wall is formed with multiple flange surfaces that are oriented substantially parallel to one another.

14. The switchgear assembly according to claim 13, wherein said multiple flange surfaces are formed to lie within a common plane.

15. A switchgear assembly, comprising: an encapsulating housing; a drive device and a kinematic chain connected to said drive device for transmitting a movement of said drive device into an interior of said encapsulating housing; a spacer device mounting said drive device to said encapsulating housing, said spacer device forming a receiving space between said drive device and said encapsulating housing a plurality of bellows for fluid-tightly sealing said receiving space relative to said interior of said encapsulating housing; and wherein said kinematic chain reaches through said receiving space and into the interior of said encapsulated housing, and said interior of said encapsulating housing is fluid-tightly separated from said receiving space.

16. The switchgear assembly according to claim 15, wherein said encapsulating housing includes a bulging wall and said spacer device is mounted on said bulging wall.

17. The switchgear assembly according to claim 16, wherein said bulging wall is formed with a flange surface.

18. The switchgear assembly according to claim 16, wherein said bulging wall is formed with multiple flange surfaces that are oriented substantially parallel to one another.

19. The switchgear assembly according to claim 18, wherein said multiple flange surfaces are formed to lie within a common plane.

20. The switchgear assembly according to claim 15, wherein said bulging wall is formed with at least one flange surface.

21. The switchgear assembly according to claim 15, wherein said bulging wall is formed with multiple flange surfaces and said bellows are mounted on said flange surfaces.

22. The switchgear assembly according to claim 21, wherein said multiple flange surfaces are formed to lie within a common plane.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

(1) An exemplary embodiment of the invention is described below and subsequently shown schematically in drawings.

(2) There is shown:

(3) FIG. 1 a section through a switchgear assembly shown in perspective;

(4) FIG. 2 a plan view of a spacer device; and

(5) FIG. 3 a section through the spacer device from FIGS. 1 and 2.

DESCRIPTION OF THE INVENTION

(6) The switchgear assembly according to FIG. 1 has a metal-clad housing 1. The metal-clad housing 1 has an essentially hollow cylindrical design and extends with its hollow cylindrical axis along a main axis 2. The metal-clad housing 1 accordingly has an essentially circular cross-section coaxially with the main axis 2. In the present case, the metal-clad housing 1 is designed as a pressure vessel such that the inside 3 of the metal-clad housing 1 can be filled with an electrically insulating fluid which is at an elevated pressure and is prevented from evaporating by the metal-clad housing 1. The metal-clad housing 1 has respective diametrically opposite connection flanges 4a, 4b, 4c, 4d on its lateral surface. The connection flanges 4a, 4b, 4c, 4d are sealed in fluid-tight fashion by flange covers 5a, 5b, 5c, 5d. When required, the flange covers can act as dummy covers, i.e. the flange covers 5c close the associated connection flange 4c in fluid-tight fashion. Alternatively, the flange covers 5a, 5b, 5d can also serve as bushes such that phase conductors 6a, 6b can pass through the flange covers 5a, 5b, 5d so that they are held in a fluid-tight and electrically insulating fashion, wherein the flanges 4a, 4b, 4d are closed in fluid-tight fashion. The electrically insulating fluid flows around phase conductors 6a, 6b inside the metal-clad housing 1. The phase conductors 6a, 6b are in each case partially designed as a circuit breaker unit 7a, 7b. The circuit breaker units 7a, 7b have contact pieces 8a, 8b which can move relative to one another. It is thus possible to disconnect or switch through the phase conductors 6a, 6b by means of the associated circuit breaker units 7a, 7b. Vacuum tubes inside the metal-clad housing 1 can serve as circuit breaker units 7a, 7b. The circuit breaker units 7a, 7b are part of the phase conductors 6a, 6b. When required, the phase conductors 6a, 6b can be divided into a first part branch 9a and a second part branch 9b. It can thus be provided that a first part branch 9a leads out of the metal-clad housing 1 via a connection flange 4a and flange cover 5a. It can furthermore be provided that a second part branch 9b leads out of the metal-clad housing 1 via a connection flange 4d and flange cover 5d. The two part branches 9a, 9b are here connected to the same side of the circuit breaker unit 7a, 7b. In contrast, the other side of the circuit breaker unit 7a, 7b is in contact with a third part branch 9c which leads to the outside of the metal-clad housing 1 from inside the metal-clad housing 1 via a connection flange 4c and a flange cover 5c. It is thus possible to electrically separate, when required, the third part branch 9c of the phase conductors 6a, 6b, with the interposition of the circuit breaker units 7a, 7b, from the first and the second part branch 9a, 9b, or to effect an electrical contact.

(7) An end flange 10 is arranged at the end of the metal-clad housing 1. The end flange 10 has a circular contour which is spanned and closed by a metal-clad housing cover 11. The metal-clad housing cover 11 of the metal-clad housing 1 is connected to the end flange 10 in fluid-tight fashion and has a bulging wall 12. The bulging wall 12 is part of a spherical cap which is delimited by an annular circumferential flange (corresponding to the end flange 10), situated on the outside, of the metal-clad housing cover 11. A spacer device 12 is connected to the metal-clad housing cover 11 by being bonded to it. In the present case, the spacer device 13 and the metal-clad housing cover 11 are formed from a metal and manufactured in a single piece using a casting process. In the present case, the spacer device 13 has a hollow cylindrical design, wherein the cross-section of the hollow cylinder has a circular design and has dimensions selected such that, on the one hand, the bulging wall 12 is enclosed by the spacer device 13 and, on the other hand, the annular circumferential flange of the metal-clad housing cover 11 projects radially above the spacer device 13. An adapter assembly 14 is provided on that end of the spacer device 13 which is remote from the bulging wall 12. The adapter assembly 14 has an essentially disk-shaped design such that an adapter assembly 15 can be connected to the spacer device 13. The adapter assembly 14 here closes a receiving space 16, enclosed by the spacer device 14, in the direction of the main axis 2 of the metal-clad housing 1 such that the spacer device 13 delimits the receiving space 16 radially, and the bulging wall 12 of the metal-clad housing 1, or the adapter assembly 14, delimits the receiving space 16 axially. The drive device 15 partially spans the receiving space 16. The receiving space 16 is separated from the inside of the metal-clad housing 1 such that neither the adapter assembly 14 nor the spacer device 13 are fluid-tight barriers of a pressure vessel. The drive device 15 is connected to the adapter assembly 14, wherein the drive device 15 is shown, by way of example, as a spring-storage drive. A kinematic chain 18 can be set in motion by means of a storage spring 17. The kinematic chain 18 here passes through the adapter assembly 14, projects into the receiving space 16 and from there leads through a wall of the metal-clad housing 1 into the inside of the metal-clad housing 1. The kinematic chain 18 is connected as such in each case to at least one of the contact pieces 8a, 8b which can move relative to each other such that switching the circuit breaker units 7a, 7b is made possible, triggered by the drive device 15 with the interposition of the kinematic chain 18. The kinematic chain 18 has a connecting rod 19 which passes through the adapter assembly 14. For this purpose, the adapter assembly 14 has a cutout through which the connecting rod 19 projects movably. The connecting rod 19 is connected to a yoke body 20 which can move in translation in the receiving space 16. The direction of movement of the yoke body 20 is here oriented essentially in the direction of the main axis 2 of the metal-clad housing 1. Contact pieces 8a, 8b which can move relative to each other are connected respectively to the yoke body 20. The yoke body 20 is connected to the movable contact pieces 8a, 8b preferably via electrically insulating drive rods. The yoke body 20 can, for example, have an electrically insulating design or alternatively a drive rod, which connects the yoke body 20 to the contact pieces 8a, 8b which can move relative to each other, can electrically insulate the yoke body 20 from the electrical potential of the phase conductors 6a, 6b.

(8) In order to transmit a movement in fluid-tight fashion through a wall of a metal-clad housing 1, it is here provided that flexibly deformable bellows 21a, 21b are introduced into a wall of the metal-clad housing 1. It is thus possible, with the reversible deformation of the bellows 21a, 21b, to transmit a linear movement through a wall of the metal-clad housing 1 in sealed fashion. The bellows 21a, 21b are in each case mounted on flange surfaces 22a, 22b, 22c, wherein the flange surfaces 22a, 22b, 22c each have a circular form and are situated in the bulging wall 12. The flange surfaces 22a, 22b, 22c preferably lie within a plane. For this purpose, in the present case blind depressions, stamped in an opposite direction. The flange surfaces 22a, 22b, 22c thus make it possible for the bellows 21a, 21b to bear in fluid-tight fashion against the metal-clad housing 1. The bellows 21a, 21b furthermore bear in fluid-tight fashion against the drive rods, which pass through the wall of the metal-clad housing 1, of the kinematic chain 18. In addition to positioning the bellows 21a, 21b, the flange surfaces 21a, 21b, 21c have mirror-symmetrically designed flange surfaces 22a, 22b, 22c on which a hollow insulator 23a, 23b is mounted in each case. The hollow insulators 23a, 23b are oriented so that they are flush with the flange surface 22a, 22b, 22c, 22a, 22b, 22c such that the hollow insulators 23a, 23b are each traversed by a (preferably electrically insulating) drive rod of the kinematic chain 18, wherein the hollow insulators 23a, 23b position the circuit breaker units 7a, 7b and hence the phase conductors 6a, 6b inside the metal-clad housing 1.

(9) FIG. 2 shows a plan view of the metal-clad housing cover 11 with the spacer device 13. The spacer device 13 has a circular cross-section and surrounds a bulging wall 12 in the metal-clad housing cover 11. The flange surfaces 22a, 22b, 22c on which the bellows 21a, 21b are placed can be seen in the bulging wall 12. It can be seen here that three phase conductors 6a, 6b, together with three circuit breaker units 7a, 7b, can be arranged inside the metal-clad housing in a fashion such that they are electrically insulated from one another. Owing to the plane of section, only two phase conductors 6a, 6b can be seen in FIG. 1, wherein a circuit breaker unit 7a is illustrated in the section. In FIG. 2, a continuous dashed line indicates the position of the yoke body 20 which is arranged so that it is situated above the flange surfaces 22a, 22b, 22c as part of the kinematic chain 18 and can be displaced via the connecting rod 19 in the direction of the main axis 2. The mirror-symmetrical flange surfaces 22a, 22b, 22c, on which hollow insulators 23a, 23b are mounted, extend flush with the visible flange surfaces 22a, 22b, 22c, on that side of the plane of the drawing which is averted from FIG. 2.

(10) The metal-clad housing cover 11 known from FIGS. 1 and 2 is illustrated in the cross-section shown in FIG. 3. The blind depression of the flange surfaces 22a, 22b, 22c in the bulging wall 12 can be seen with the aid of this cross-section. The blind depression is here stamped to a depth such that the flange plane of the flange surrounding the metal-clad housing cover 11 is not traversed. Simplified fitting and improved handling of the metal-clad housing cover 11, together with the spacer device 13, is thus ensured. The possibility of arranging recesses in the wall of the spacer device is indicated by continuous dashed lines.