WO2008077878A1

WO2008077878A1 - Insulating housing

Info

Publication number: WO2008077878A1
Application number: PCT/EP2007/064316
Authority: WO
Inventors: Günter Leonhardt
Original assignee: Decom Gmbh
Priority date: 2006-12-22
Filing date: 2007-12-20
Publication date: 2008-07-03
Also published as: DE102006062225B4; DE102006062225A1

Abstract

The invention relates to an insulating housing (2) with a longitudinal axis (20) and at least one inner face (22), which forms at least one fitting area (21), for accommodating at least one vacuum interrupter chamber (4) of a vacuum interrupter (1). The inner face (22) has at least one partial face (220) in the form of a bearing face, and the bearing face (220) is arranged in rotationally symmetrical fashion with respect to the longitudinal axis (20). The insulating housing (2) ensures fitting of the vacuum interrupter chamber (4) without air being enclosed between the vacuum interrupter chamber (4) and the insulating housing (2). In addition, dismantling of the vacuum interrupter chamber (4) from the insulating housing (2) is made possible without it being necessary to destroy the insulating housing (2). For this purpose, the bearing face (220) is designed to be conical with respect to the longitudinal axis (20) and encloses a bearing angle a of between 1.5 degrees and 12.5 degrees with the longitudinal axis (20).

Description

insulating housing

The invention relates to a system of a solid-insulated switch pole consisting of an insulation housing with a longitudinal axis and a vacuum interrupter chamber with a vacuum switch, wherein the insulation housing has at least one mounting space forming and with respect to the longitudinal axis at least partially conical inner surface for supporting the vacuum interrupter chamber, and the vacuum interrupter chamber an outer circumferential surface in relation to its central axis and a padding at least partially enclosing the lateral surface and resting on the lateral surface, and the padding forms an outer surface designed as a mounting surface.

It is already known a generic insulation housing from EP 086 681 A2. The housing made of cast resin described here receives a cylindrical vacuum interrupter chamber. The vacuum interrupter chamber is mounted in the housing via a likewise cylindrical padding. The vacuum interrupter chamber, together with the upholstery, is encapsulated with casting resin, so that the inside of the housing forms a bearing surface for the vacuum interrupter chamber.

Furthermore, DE 10 2004 047 276 B4 describes a solid-insulated switch pole with an inner conical insulating housing and a vacuum interrupter. The vacuum tube is attached without padding in the insulation housing and then surrounded with the padding. As a result, adhesion of the padding to the insulation housing and to the vacuum interrupter tube is achieved, which is greater than the tear and / or tear propagation resistance of the padding. The vacuum interrupter is therefore no longer removable without destroying the padding. The invention has for its object to form an insulating housing and a vacuum interrupter chamber and arrange such that an assembly of the vacuum interrupter chamber is made possible in I- solationsgehäuse without air between the vacuum interrupter chamber and the insulating housing is included, and also disassembly of the vacuum interrupter chamber from the insulation housing is allowed to destroy without the padding or the insulation housing.

The object is achieved according to the invention, characterized in that the mounting surface is formed conical in the insulation housing with respect to the central axis before mounting the vacuum interrupter chamber and includes a mounting angle between 0.5 degrees and 9.5 degrees with the central axis. Thereby, the inventive method is made possible, in which the vacuum interrupter chamber can be used with the padding as a separate component in the insulation housing and removed again, without air between the padding and the insulation housing is included.

This ensures that the vacuum interrupter chamber can be installed in an already cast insulation housing and thus can be removed again. By the conical mounting and bearing surfaces according to the invention an air inclusion between the padding and the insulation housing can be prevented. The inclusion of air in the insulation formed by the insulating housing and the padding is to be avoided at all costs, as the dielectric constant of the insulation would be drastically increased.

The mounting angle of the padding may be blunter than the bearing angle, so that the air during insertion of the padded vacuum interrupter chamber opposite to the mounting direction M can escape, so opposite to the direction in which the vacuum interrupter chamber in the insulating housing is introduced. The reason for the complete escape of the air is that the wedge-shaped gap initially formed between the padding and the bearing surface closes counter to the mounting direction M.

It is also advantageous here that the length of the bearing surface in the direction of the longitudinal axis can be between 50 mm and 800 mm, in particular 250 mm. Due to the construction according to the invention, the sizes are not limited, so that these insulation housing in the low, medium and high voltage range can be used.

It can also be noted on the construction that the insulation housing in the direction of the longitudinal axis above the mounting space has an upper receptacle for an upper contact terminal and in the direction of the longitudinal axis below the mounting space a lower receptacle for a lower contact terminal.

It is also advantageous that the upper contact connection and the lower contact connection are at least partially encapsulated in the insulation housing. The vacuum interrupter chamber is inserted in the insulation housing, which is already equipped with the contact connections. The contact connections are cast in the separate casting of the insulation housing with. The vacuum switching chamber is connected to the contact terminals after insertion into the insulation housing.

It is also advantageous with respect to the installation and the exclusion of air, that the upper contact connection has a vent hole, which connects the mounting space with the atmosphere. The air in the mounting space can be up to the complete installation of the vacuum interrupter chamber - A -

escape through this vent hole, if otherwise no way out for the air is available.

For mounting the vacuum interrupter chamber, it is advantageous that at least one fastening means, in particular one or more screws are provided at the upper contact connection, with the aid of which a contact piece of the vacuum interrupter chamber is to be fastened to the upper contact connection. With the fastener, it is also possible to correctly position the vacuum interrupter chamber.

For this purpose, it is advantageous that the fastening means has a groove or vent opening, with which the mounting space can be connected to the atmosphere. As an alternative to the possibility of discharging the air via the vent hole in the upper contact connection from the mounting space, the attachment means has a possibility of air transport. One or more screws are preferably used as fastening means, which have a groove extending in the longitudinal direction of the screw or vent hole for the venting. The groove or vent hole ensures that even if a washer is inserted between the screw and the upper contact terminal, the air can escape when the screw is tightened. For this purpose, the groove or vent hole extends in the region of the threaded portion and in the screw head.

With respect to the insulation housing, it is advantageous that the insulation housing is formed in one piece and material identical. The insulating housing is manufactured with the upper receptacle and the lower receptacle, both of which belong to the insulation housing, in a casting process with a cast. For this purpose, it is advantageous that the insulating housing is made of plastic, in particular of at least one plastic of the family of polytetrafluoroethylene or polyamides or epoxy resins. Such materials have very good insulation properties and have the necessary strength for medium and high voltage switches.

Moreover, it is advantageous that the vacuum interrupter chamber has a fixed contact piece assigned to an upper end side and a movable contact piece assigned to a lower end face, the fixed contact piece being arranged in the direction of the center axis above the outer surface and the movable contact piece being arranged below the outer surface in the direction of the central axis. The two contact pieces are connected after installation of the vacuum interrupter chamber to the two contact terminals in the insulation housing.

With regard to the insulation, it is advantageous that the vacuum interrupter chamber consists at least partially of glass or of an insulating ceramic, in particular of Al 2 O 3. These materials can be very well combined with the inventive technique, since they withstand the cone-shaped loads.

It is advantageous that the padding beyond the lateral surface also at least partially covers the upper end side and / or also at least partially the lower end side. The overvoltage protection can thus be ensured outside of the area of the lateral surface. At the same time, the vacuum interrupter chamber is padded in the direction of the longitudinal axis on the upper end side.

Finally, it is advantageous that the padding of a curable, one- or two-component, liquid Plastic compound is made. As a result, the vacuum interrupter chamber can be surrounded with the padding and at the same time the inclusion of air can be prevented since the plastic compound is applied bubble-free in the direction of the central axis, ie a gap is filled between a casting mold and the lateral surface in the direction of the central axis.

It is also advantageous for this purpose that the padding is made of silicone rubber. This material, also known as Liquid Silicone Rubber LSR, has very good insulation properties and can be poured bubble-free.

With regard to a preferred embodiment, it is essential that the bearing angle has the same dimension as the mounting angle or the bearing angle has a dimension which is between 1% and 20% greater than the dimension of the mounting angle.

An advantage of this system is that the system with a mechanical and / or electromagnetic drive device and / or a control cabinet, wherein the cabinet for receiving a plurality of integrated systems in the drive device is formed and the system is connected within the cabinet to an electrical power grid. The system of the vacuum switch consists of the insulating housing, in which the vacuum interrupter chamber with the padding is accommodated. The contact pieces of the vacuum interrupter chamber are connected to the contact terminals. The movable contact piece is connected to a switching mechanism, via which the movable contact piece is moved in the direction of the central axis during switching and connected to the fixed contact piece or separated from it. In addition, the movable contact piece is connected via the switching mechanism to the lower contact terminal and to a drive device for the switching mechanism. Due to the forces between the two contact pieces in the interior of the vacuum interrupter chamber of several thousand Newton, which occur at voltages in the medium and high-voltage range, the drive mechanism has a weight of several kilograms. Within a control cabinet several such drive devices are arranged with a vacuum interrupter chamber and connected via corresponding rail-shaped copper conductors to the power grid.

The system assumes that the upper contact terminal is electrically and mechanically connected to the fixed contact piece and the lower contact terminal is connected to the movable contact piece. This connection is made after the vacuum interrupter chamber is mounted in the insulator housing.

With regard to the conical configuration, a method for assembling the system is advantageous according to the invention, wherein in a first method step the padding is poured around the vacuum interrupter chamber in a mold separate from the insulation housing. Thereafter, the vacuum interrupter chamber is introduced in the direction of its central axis coaxial with the longitudinal axis in the mounting direction M in the mounting space of the insulating housing. After the mounting surface at least partially abuts the bearing surface, the vacuum interrupter chamber is mechanically or pneumatically introduced in the mounting direction in the mounting space. As soon as the upper end side makes electrical contact with the upper contact connection, the vacuum interrupter chamber is mechanically fixed in this position. The padding, which forms the mounting surface, serves as a centering means of the vacuum interrupter chamber with respect to the insulation housing. The mounting surface adapts in its shape to the bearing surface of the insulation housing. It is advantageous for this purpose that the vacuum interrupter chamber is pneumatically introduced into the mounting space, wherein in the mounting space on the vent hole, a negative pressure is generated, through which the vacuum interrupter chamber is drawn in the direction of the longitudinal axis in the mounting space. The vacuum generated in the mounting space is sealed by the upholstery, which lies completely in the circumferential direction and partly in the direction of the center axis, against the bearing surface. The padding slides during insertion on the bearing surface in the insulation housing in mounting direction M.

To complete this method, it is advantageous that the vacuum interrupter chamber, after the contact between the upper end face and the upper contact terminal is made, is mechanically locked or fixed in the insulating housing.

For this purpose, it is provided that the vacuum interrupter chamber is mechanically drawn into the mounting space via at least one screw, wherein the screw has an external thread and engages in a bore with internal thread in the upper face and pulled the vacuum interrupter chamber by turning the screw in the direction of the longitudinal axis in the mounting space becomes. This operation may serve either alone to mount the vacuum interrupter chamber in the insulator housing, or may serve as a completion of the vacuum method described above to bring the vacuum interrupter chamber into its final position in which the contact between the fixed contact piece and the upper contact terminal is established is.

For this purpose, it is advantageous for securing the insulation that, after the jacket surface bears at least partially against the bearing surface, the air present in the mounting space is at least partially released into the atmosphere via the bore. is headed. This avoids that forms in the mounting space, an overpressure that could be greater than the sealing pressure between the padding and the bearing surface.

According to the invention, the conical design of the padded vacuum interrupter chamber ensures that the vacuum interrupter chamber can be pulled out of the insulation housing with the padding again. The disassembly of the solid-insulated switch pole is thus possible without destroying or damaging the padding or the insulating housing. With the dismantling, it is again possible to maintain the solid-insulated switch pole and replace individual parts such as the insulation housing, the vacuum interrupter chamber with padding or a contact connection and reinsert the solid-insulated switch pole.

Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures. It shows:

Figure 1 is a sectional view of an insulation housing with two contact terminals and a fastening means for a vacuum interrupter chamber;

Figure 2 is a sectional view of a vacuum interrupter chamber with a padding;

Figure 3 is a schematic representation of a vacuum interrupter chamber with the padding in an insulation housing and a fastening to an upper contact terminal of the insulation housing;

Figure 4 is a schematic representation of Figure 3 with the angular relationships between a bearing angle and a mounting bracket. Figure 5 is a schematic representation of Figure 4 with a negative mounting angle.

Figure 6 is a schematic representation of Figure 4 with a mounting surface parallel to the lateral surface.

Figure 7 is a sectional view of a vacuum switch;

Figure 8 is a screw in side view;

9 shows a screw in section A-A 'according to FIG. 8.

In Fig. 1, an insulating housing 2 of a vacuum switch 1 is shown without built-in vacuum interrupter chamber 4. The insulating housing 2 forms a mounting space 21, in which the vacuum switching chamber 4 shown in FIG. 2 can be installed. The insulation housing 2 has a longitudinal axis 20, to which the insulation housing 2 is partially rotationally symmetrical.

The mounting space 21 is bounded by an inner surface 22 and is essentially divided into two areas. In the upper region of the mounting space 21 there is provided a bearing surface 220 designed as a partial surface of the inner surface 22 which is conical and rotationally symmetrical with respect to the longitudinal axis 20. In the lower region, the inner surface 22 is not symmetrical and delimits the part of the mounting space 21, in which, after assembly of the vacuum interrupter chamber 4, a part of a switching mechanism is arranged.

The insulating housing 2 has for connection of the vacuum interrupter chamber 4, an upper receptacle 23 and a lower receptacle 24. The upper receptacle 23 limits the mounting space 21 upwards. The diameter of the conical surface formed by the bearing surface 220 is smaller in the region of the upper receptacle 23 than in the region of the lower receptacle 24. In the upper receptacle 23, an upper contact terminal 230 is provided, to which a fixed contact piece 42 of the vacuum interrupter chamber 4, which is shown in greater detail in FIG. 2, is to be connected on one side. In the lower receptacle 24, a lower contact terminal 240 is provided, to which a movable contact piece 43 of the vacuum interrupter chamber 4 is to be connected. The two contact terminals 230, 240 are connected on the other side via holes 232 with internal thread to a continuing and not shown conductor to a power grid.

The vacuum switching chamber 4 shown in FIG. 2 has a cylindrical vacuum housing with a central axis 40 and a lateral surface 41 which is rotationally symmetrical with respect to the central axis 40. In the direction of the center axis 40, the vacuum interrupter chamber 4 closes on the one hand with an upper end face 44 and opposite with a lower end face 45. At the upper end face 44, the fixed contact piece 42 is provided, which is contacted with the upper contact terminal 230 of the insulating housing 2. On the lower end face 45, the movable contact piece 43 is provided, which is connected via a switching mechanism 5 shown in more detail in Fig. 7 to the lower contact terminal 240 of the insulating housing 2.

The vacuum interrupter chamber 4 is surrounded by a padding 3 formed from silicone. The vacuum switching chamber 4 has been surrounded in this embodiment with a liquid silicone rubber LSR, so that between the padding 3 and the lateral surface 41 and in the padding 3 itself no air is trapped.

The padding 3 forms on the side opposite the lateral surface 41 a mounting surface 31, via which it is mounted in the insulating housing 2 on the bearing surface 220. In the unmounted state of the padded vacuum interrupter chamber 4 shown in FIG. 2, the mounting surface 31 is rotationally symmetrical and conical with respect to the central axis 40. Between the mounting surface 31 and the lateral surface 41 thus a mounting bracket b is formed, which is approximately 1.5 degrees in this embodiment.

When the vacuum switching chamber 4 is mounted in the insulating housing 2, as shown in Fig. 3, the longitudinal axis 20 and the central axis 40 are identical, d. H. the bearing surface 220, the mounting surface 31 and the lateral surface 41 are arranged coaxially to the longitudinal axis 20 and the central axis 40.

The vacuum interrupter chamber 4 with padding 3 is introduced with the fixed contact piece 42 ahead in the mounting direction M in the mounting space 21. It is essential that at the beginning of introducing the vacuum interrupter chamber 4 in the insulating housing 2, when the longitudinal axis 20 and the central axis 40 are arranged coaxially, between the bearing surface 220 of the mounting space 21 and the mounting surface 31 an angle is formed which is not equal to 0 degrees ,

As a result, it is achieved, as shown in FIG. 4, that the mounting surface 31 of the upholstery 3 rests in a circular manner on the bearing surface 220 over its entire circumference in the region of the fixed contact piece 42 at the moment in which the mounting surface 31 contacts the bearing surface 220. The gap formed in the embodiment of FIG. 4 between the bearing surface 220 and the mounting surface 31 opens in a wedge shape downwards. The opening angle of this gap is the measure of the difference between bearing angle a and mounting angle b. Based on these geometric conditions closes during the further assembly process, during which the padded vacuum interrupter chamber 4 pushed further in mounting direction M in the insulation housing 2 and the padding 3 is elastically deformed, the gap between bearing surface 220 and mounting surface 31 increasingly. This ensures that the air between the bearing surface 220 and the mounting surface 31 during the movement of the vacuum interrupter chamber 4 in the mounting direction M is pressed continuously opposite to the mounting direction M from the air gap.

The elastic padding 3 is deformed in this mounting operation, so that the mounting surface 31 elastically adapts to the shape and the angle of the bearing surface 220. In FIG. 2, by way of example, the bearing surface 220 is shown in the sectional view of the padding 3. The vacuum switching chamber 4 is in relation to the bearing surface 220 in the mounting direction M in its final position. The padding 3 is displaced by the protruding measure and spreads in the direction of the central axis 40 upwards and downwards out. Characterized in that the padding 3 is open in the mounted state of the vacuum interrupter chamber 4 up and down, the excess padding 3 as shown in Fig. 3 can be raised at the upper end face 44 and at the lower end face 45.

The aim is to adjust the bearing angle a and the mounting angle b and the diameter ratios between the bearing surface 220 and the lateral surface 41 and the thickness of the padding 3 so that a sufficient sealing pressure of the padding 3 is achieved on the bearing surface 220 on the entire bearing surface 220. In particular, the bearing angle a and mounting bracket b will vary between 0.5 and 5.0 degrees, depending on the application.

The clamping force which is necessary to pull the vacuum interrupter chamber 4 so far into the mounting space 21 until the fixed contact piece 42 abuts against the upper contact terminal 230, according to the embodiment of FIGS. 1, 3 and 7 by a screw 6 achieved trained fastener. The screw 6 is inserted through an opening 233 provided on the upper side of the upper receptacle 23. Adjoining the opening 233 in the direction and coaxially with the longitudinal axis 20 is a through-bore 234 in the upper contact connection 230. The screw 6 is inserted through the through hole 234 and engages in a bore 440 with internal thread in the fixed contact piece 42 a. The screw 6 is seated on a stop within the through hole 234, so that when turning the screw 6, the vacuum interrupter chamber 4 is pulled up. Characterized in that the bore 440 is arranged coaxially to the longitudinal axis 20 in the fixed contact piece 42, a concentric mounting of the vacuum interrupter chamber 4 in the insulating housing 2 is ensured. After assembly, the opening 233 is closed with a cap 235 or a plug made of a plastic and at the same time the insulation housing 2 is electrically insulated.

In order for a defined stop between the fixed contact piece 42 and the upper contact terminal 230 is ensured, in the assembled state of the vacuum interrupter chamber 4 as shown in Fig. 7, a gap 7 between the insulation housing 2 and the padding 3 applied to the upper end face 44 of the vacuum interrupter chamber intended. Depending on the extent to which the padding 3 expands in the region of the upper end face 44, the Gap 7 larger or smaller. According to the embodiment of FIG. 3, no gap 7 is provided so that the padding 3 is elastically deformed in the region of the upper end face 44 by means of the screw 6.

According to the embodiments of FIGS. 1 and 3, starting from the through hole 234, a vent hole 231 is provided in the upper contact port 230, through which the air can escape, which is included in the mounting space 21 at the beginning of assembly, as soon as the padding 3 sealingly against the bearing surface 220 is present. The vent hole 231 opens at the upper contact terminal 230, so that the insulation of the vacuum switch 1 is not affected.

In a further exemplary embodiment according to FIG. 7, the venting bore 321 is not provided in the upper contact connection 230 but in the screw 6 shown in greater detail in FIGS. 8 and 9. For this purpose, the screw 6, as shown in FIGS. 8 and 9, a groove 60 extending in the direction of the axis of rotation 63 on the outer surface. The groove 60 allows the air in the mounting space between the screw 6 and the contact terminal 230 in the direction of the opening 233 in the insulation housing 2 can escape. The escape of air is independent of the position of the screw 6 with respect to the fixed contact piece 42 and regardless of the position of the screw 6 with respect to the contact terminal 230 possible. For this purpose, the groove 60 extends along the threaded portion 62 to partially in the screw head 61. In the position of the screw 6, in which it sits with the underside of the screw head 61 directly or indirectly on the contact terminal 230, the air flows above the contact surface between the screw head 61 and contact conclusion 230 in the radial direction to the axis of rotation 63 of the screw 6 from the groove 60.

During assembly, it is essential that the mounting angle b with respect to the central axis 40 is not equal to the bearing angle a. Starting from FIG. 4, both angles are applied clockwise to the vertical or to the central axis 40. The angles both have a positive sign according to this definition. As shown in Fig. 5, the solution according to the invention is also achieved if the mounting bracket b would be negative. In this case, the thicker side of the padding 3 would be associated with the upper end face 44 and be introduced into the mounting space 21 in the mounting direction M first. The shape of the padding 3 is carried out according to the same principle as described in FIG. 4. Likewise, the air between bearing surface 220 and mounting surface 31 escapes against the mounting direction M.

In Fig. 6, an embodiment is shown, in which the padding 3 is applied to the lateral surface 41 with a constant thickness, that is, the mounting bracket b is infinitely large. Due to the conical bearing surface 220, ie a bearing angle a greater than 0 degrees, the mounting advantage of the invention is also achieved here. The padding 3 is located at the beginning of assembly annular to the bearing surface 220 and the air gap between bearing surface 220 and mounting surface 31 closes with increasing movement of the vacuum interrupter chamber 4 in the mounting direction M. Between the two extremes of FIG. 4, after which the mounting surface 31 almost parallel may be to the bearing surface 220, and as shown in FIG. 5, after which the mounting bracket b may be negative, there are numerous intermediate solutions of bearing angle a and mounting angle b, with which the inventive solution can be achieved. The inventive design with an at least conical bearing surface 220 has the advantage that the vacuum interrupter chamber 4 can be easily removed again. After loosening the screw 6, the vacuum interrupter chamber 4 is biased against the mounting direction M due to the elasticity of the padding 3 and the inclination angle of the bearing surface 220. When disassembling thus neither the insulation housing 2 nor the vacuum interrupter chamber 4 must be destroyed. Also, no special tools or extremely high temperatures are necessary to dismantle the vacuum interrupter chamber 4.

The movable contact piece 43 is, as shown in Fig. 7, connected to a switching mechanism 5. The switching mechanism 5 has a movable in the direction of the central axis 40 contact strip 50, via which the movable contact piece 43 is connected to the lower contact terminal 240. In addition, the switching mechanism 5, a coupling element 51 made of glass fiber reinforced plastic, via which the movable contact piece 43 is moved in the direction of the central axis 40. The coupling element 51 is connected on the movable contact piece 43 opposite end to a not shown mechanically and electromagnetically operating drive unit.

The movable contact piece 43 is connected to the coupling element 51 via a bolt 52 with a piston 54 arranged on the coupling element 51. The piston 54 is biased in the direction of the central axis 40 via disc springs 53 relative to the coupling element 51, so that the distance between the coupling element 51 and the movable contact piece 43 to compensate for the burnup in the vacuum interrupter chamber 4 is variable. For this purpose, the dishes are 53 mounted in a brass bearing 55 and guided in the direction of the central axis 40.

LIST OF REFERENCE NUMBERS

1 vacuum switch

2 insulation housing

20 longitudinal axis

21 mounting space

22 inside surface

220 partial area, storage area

23 upper intake

230 upper contact connection

231 Vent hole

232 bore

233 opening

234 through hole 24 lower receptacle

240 lower contact connection

3 padding

31 mounting surface, outer surface

4 vacuum switching chamber

40 central axis

41 lateral surface

42 fixed contact piece

43 movable contact piece

44 upper end 440 bore

45 lower end face

5 switching mechanism

50 contact band

51 coupling element

52 bolts

53 plate spring 54 pistons

55 brass bearings

6 fasteners, screw

60 groove, vent hole

61 screw head

62 threaded section

63 axis of rotation

7 gap a bearing angle b mounting angle

M mounting direction

Claims

Patent claims

1. System of a solid-insulated switch pole consisting of an insulation housing (2) with a longitudinal axis (20) and a vacuum switching chamber (4) with a vacuum switch (1), the insulation housing (2) having at least one assembly space (21) forming and with reference to Longitudinal axis (20) has at least partially conical inner surface (22) for supporting the vacuum switching chamber (4), and the vacuum switching chamber (4) has an outer lateral surface (41) in relation to its central axis (40) and an at least partially enclosing the lateral surface (41). and has padding (3) resting on the lateral surface (41) and the padding (3) forms an outer surface (31) designed as a mounting surface, so that the mounting surface (31) is in the insulation housing (31) before the vacuum switching chamber (4) is mounted ( 2) is conical in relation to the central axis (40) and includes a mounting angle (b) between 0.5 degrees and 9.5 degrees with the central axis (40).

2. Solid insulated switch pole according to claim 1, characterized in that the inner surface (22) is at least partially designed as a bearing surface (220) and includes a bearing angle (a) between 1.5 degrees and 12.5 degrees with the longitudinal axis (20).

3. Solid insulated switch pole according to claim 2, characterized in that the length of the bearing surface (220) in the direction of the longitudinal axis (20) is between 50 mm and 800 mm, in particular 250 mm.

4. Solid-insulated switch pole according to one of the preceding claims, so that the insulation housing (2) in the direction of the longitudinal axis (20) above the assembly space (21) comprises an upper receptacle (23) with an upper contact connection (230) and the upper contact connection ( 230) has a ventilation hole (231) with which the assembly space (21) can be connected to the atmosphere.

5. Solid insulated switch pole according to claim 4, characterized in that at least one fastening means (6), in particular one or more screws, are provided on the upper contact connection (230), with the help of which a contact piece (42) of the vacuum switching chamber (4) is provided on the upper contact connection ( 230) is to be attached.

6. Solid insulated switch pole according to claim 5, characterized in that the fastening means (6) has a groove or vent opening (60) with which the mounting space (21) can be connected to the atmosphere.

7. Solid-insulated switch pole according to one of the preceding claims, so that the padding (3) in the direction of the central axis (40) beyond the lateral surface (41) also at least partially covers the upper end face (44) and / or at least partially the lower end face (45) of the vacuum switching chamber (4).

8. Solid-insulated switch pole according to one of the preceding claims, characterized in that the padding (3) is made from a curable, one- or two-component, liquid plastic mass, in particular from silicone rubber.

9. Solid-insulated switch pole according to one of the preceding claims, so that the bearing angle (a) has the same dimensions as the mounting angle (b).

10. Solid insulated switch pole according to claim 9, characterized in that the bearing angle (a) is between 1% and 20% larger than the mounting angle (b).

11. Use of a solid-insulated switch pole according to one of claims 1 to 10 with a mechanical and / or electromagnetic drive device and / or a control cabinet, the control cabinet being designed to accommodate a plurality of solid-insulated switch poles integrated in the drive device and the solid-insulated switch pole within the control cabinet electrical power network can be connected.

12. Method for assembling a solid-insulated switch pole consisting of an insulation housing (2) with a longitudinal axis (20) and a vacuum switching chamber (4) with a vacuum switch (1), the insulation housing (2) having at least one assembly space (21) forming and with Relative to the longitudinal axis (20), it has at least a partially conical inner surface (22) for supporting the vacuum switching chamber (4), and the vacuum switching chamber (4) has at least one outer lateral surface (41) in relation to its central axis (40) and one of the lateral surface (41). partially enclosing padding (3) resting on the lateral surface (41) and the padding (3) forms an outer surface (31) designed as a mounting surface and conical in relation to the central axis (40), marked by the following process steps:

1.) the padding (3) is cast around the vacuum switching chamber (4) in a mold separate from the insulation housing (2),

2.) the vacuum switching chamber (4) is inserted in the direction of its central axis (40) coaxially to the longitudinal axis (20) in the assembly direction (M) into the assembly space (21) of the insulation housing (2),

3.) after the mounting surface (31) is at least partially in contact with the inner surface (22), the vacuum switching chamber (4) is mechanically or pneumatically inserted further into the mounting space (21) in the mounting direction (M), 4.) as soon as the upper end face (44) of the vacuum switching chamber (4) electrically contacts the upper contact connection (230) of the insulation housing (2), the vacuum switching chamber (4) is mechanically fixed in this position.

13. The method according to claim 12, characterized in that the vacuum switching chamber (4) is pneumatically introduced into the assembly space (21), with a negative pressure being generated in the assembly space (21) via a vent hole (231) in the insulation housing (2), through which the Vacuum switching chamber (4) is pulled into the assembly space (21) in the direction of the longitudinal axis (20).

14. The method according to claim 12, characterized in that the vacuum switching chamber (4) is pulled mechanically into the assembly space (21) via at least one screw (6), the screw (6) having an external thread and into a bore (440) with an internal thread engages in the upper end face (44) and the vacuum switching chamber (4) is pulled into the assembly space (21) by turning the screw (6) in the direction of the longitudinal axis (20).

15. The method according to one of claims 12 to 14, characterized in that after the lateral surface (41) rests at least partially on the bearing surface (220), the air present in the assembly space (21) is at least partially directed into the atmosphere via the vent hole (231). becomes.

16. The method according to one of claims 12 to 15, so that the vacuum switching chamber (4) with the padding (5) is pulled out of the insulation housing (2) again.