WO2008015032A1 - Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage - Google Patents
Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage Download PDFInfo
- Publication number
- WO2008015032A1 WO2008015032A1 PCT/EP2007/053883 EP2007053883W WO2008015032A1 WO 2008015032 A1 WO2008015032 A1 WO 2008015032A1 EP 2007053883 W EP2007053883 W EP 2007053883W WO 2008015032 A1 WO2008015032 A1 WO 2008015032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- closure
- lid
- fuse
- clamping element
- housing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
- H01H85/0021—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices
- H01H85/0026—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices casings for the fuse and its base contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/205—Electric connections to contacts on the base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
- H01H85/303—Movable indicating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/10—Adaptation for built-in fuses
- H01H9/102—Fuses mounted on or constituting the movable contact parts of the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H2085/0225—Means for preventing discharge, e.g. corona ring
Definitions
- this switchgear is divided into expandable and non-expandable plant types.
- this switchgear usually consist of beschrie ⁇ enclosed busbar, from a region of the cable connection as well as the use of high voltage / high power fuses from a fuse box or fuse assembly.
- the Siemens switchgear NX Plus C used for the transfor ⁇ matorabzweig such as a fuse assembly, which is located in the cable compartment.
- the bushings for connecting the transformer cable are located underneath the fuses and are integrated in the gas tank made of stainless steel.
- the invention relates to a closure cover for closing a housing opening in a housing wall of a fuse housing, in particular a fuse attachment, an electrical switchgear with a cover part, which covers the housing opening.
- VerInstitutde ⁇ ckel shown for example in European Patent EP 0,517,295.
- the invention provides that the VerDENde ⁇ ckel comprises an operating element for unlocking and locking of the closure cover in the housing opening, and that a clamping element is engaged with the operating element in connection to which a circumferential sealing ring is mounted which is adapted to the contour of the housing opening, wherein the clamping element is so in communication with the operating element, that the clamping element is pulled when locking the closure lid in Rich ⁇ tion cover part and the sealing ring between the housing wall and clamping element is clamped under sealing of the Ver gleichde ⁇ cels.
- a significant advantage of the closure lid according to the invention is the fact that a seal is provided by the sealing ring, which reliably separates the interior of the fuse housing to be closed from external influences.
- the seal can be made waterproof, so that no water can penetrate into the interior of the Sich ceremoniessge ⁇ housing.
- Clamping element interact with the operating element, so that the sealing of the fuse housing during locking of the Ver ⁇ closing cover by the operating element is automatic and no further action must be taken by the user.
- the shape or the contour of the sealing ring or the contour of the housing opening is arbitrary, it may be round, oval or otherwise shaped.
- the clamping element and the cover part together form a groove with a groove bottom and two groove side walls, in which the sealing ring lies, wherein the groove side wall and the groove bottom through the clamping element and the other groove side wall through the cover part itself is ge ⁇ forms.
- a very simple design of the closure lid can be achieved when the formed by the clamping element Nutsei ⁇ tenwand is formed for example by a flange of the clamping element.
- the Nutsei ⁇ tenwand formed by the clamping element is arranged such that it is pulled when locking the Ver ⁇ closing cover together with the clamping element in the direction of the groove formed by the cover part groove side wall, whereby the width of the groove is reduced during the locking operation.
- the sealing ring is preferably made of an elastic, incompressible, at least slightly compressible material, such as an elastomer such as silicone or EPDM rubber.
- an elastic and incompressible, at least little compressible material a material is to be understood that when external pressure changes its external shape, but not, at least only slightly, its volume, so that the material density remains at least approximately constant ,
- the sealing ring consists of a material which is pressed radially outward in the event of a reduction of the groove width.
- the cap may also be configured such that the clamping element and the housing wall of Siche ⁇ approximately housing form a groove with a groove bottom and two Nutrum- walls, in which the sealing ring is located, said facing away from the cover part, distant groove side wall and the groove bottom through the Clamping element and the lid part near Nutrich ⁇ wall is formed by the housing wall.
- the clamping element has a clamping portion, which carries the circumferential sealing ring and lies on the inside of the closure lid, and also has at least one connecting piece, which with the Klemmab- cut is indirectly or directly connected and passed through a lid opening of the lid part.
- the mecha ⁇ African coupling with the control element is particularly easy to make manufacturers.
- the operating element is pivotally mounted on the connecting piece about a pivot axis which lies on the outside of the closure lid.
- control ⁇ element has at least one eccentric portion which is externally supported on the lid part such that upon pivoting of the operating element about the pivot axis, a relative movement between the clamping element and the lid part is caused.
- the eccentric portion has a planar subsection which rests in the locked position of the operating element on the cover part.
- a corresponding planner subsection may be provided, for example, to hold the control element in its unlocked position.
- the closure lid preferably also has a bewegli ⁇ Chen release plunger with a molded piston, which is arranged on the inside of the closure lid.
- trigger plunger may be, for example, to cooperate with a striker of an associated fuse. Fuses usually show a striker, which is abruptly moved ⁇ in the direction of the cover part of the closure lid when the fuse is triggered. Meets the striker pin on the release plunger, the release plunger is moved together with the molded piston in the direction of the cover part, whereby a connected to the release plunger fuse linkage for switching off the hedging ⁇ housing housing associated switchgear is triggered.
- the safety linkage is connected to a drive mechanism or a drive, which triggers one or more switches within a gas-filled plant container of the switchgear, for example.
- the piston Since the piston is movable within the lid, it will usually not be completely waterproof. In order to avoid that in the area of the piston water can penetrate through the release cover comparison, the piston is preferably separated from the outside of the closure cap through a water-tight sealing membrane ⁇ . It is also considered advantageous if the closure ⁇ lid has a pressure compensation valve, which allows a pressure ⁇ compensation between the outside of the closure lid and the inside of the closure lid.
- the pressure compensation valve may be, for example, valves, as are known from heating technology for the automatic venting of heating pipes and radiators.
- vent valves are sold for example by Tacanova GmbH in Singen under the product name "ER 40 VENT".
- the pressure compensation valve allows a very slow pressure equalization in the bidirectional direction. This makes it possible that at a higher pressure outside the Siche ⁇ housing approximately air can pass into the fuse box and can escape at a greater pressure within the Sich ceremoniessge ⁇ koruses air from the fuse housing out into the environment.
- the pressure compensating valve is also preferably configured such that it depends on the ⁇ mecanicsgeschwindig ⁇ ness of the pressure difference between the outside of the United ⁇ closing lid and the inside of the closure lid ar- beitet in such a manner that in the case of a slowly rising at ⁇ Duck difference there a Allows pressure equalization and in the case of a rapidly increasing Duckunter Kunststoffs ei ⁇ NEN pressure compensation slowed down.
- a slow pressure equalization allows, so that within the fuse box and except half of the fuse housing always the same pressure prevails.
- the pressure compensation valve is watertight and automatically closes in the event of contact with water.
- the pressure compensation valve for example, have swelling agent which swell on contact with water and thus allow a watertight sealing.
- the closure lid has a bewegli ⁇ chen release lever, which is arranged on the outside of the closure ⁇ lid and is mechanically coupled to the release plunger.
- a release lever can form a constituent part of the already mentioned ⁇ trigger linkage.
- the release plunger and the release lever are coupled together, for example, by a pivotally mounted on the cover part lever. Also, a return spring may be in communication with the release lever, which brings the release lever in a predetermined Oxfordpo ⁇ position.
- the closure lid has three connection elements which are suitable for cooperating with three connection feedthroughs of a fuse housing.
- the closure ⁇ lid has a receiving device for receiving an electrical fuse, wherein it allows the receiving device to mechanically connect the fuse with the closure lid and the closure cover together with the fuse to introduce into a fuse housing.
- the invention also relates to a Sich ceremoniessgephinu ⁇ se, particularly to a fuse assembly, with a ⁇ OF INVENTION to the invention cap.
- such a fuse box on three to ⁇ circuit-throughs.
- one of the three terminal bushings carries a grounding contact of a grounding switch.
- FIG. 2a and 2b the closure lid according to figure 1 in egg ⁇ ner central position of an operating element of the closure cap
- Figures 4a and 4b the closure lid according to figure 1 in egg ⁇ ner closed or locking position of the operating element
- Figure 5 is another view of the VerMedicde ⁇ ckels in which can be seen a receiving device of the closure cap for accommodating an electric fuse,
- Figures 6a and 6b an embodiment for a cover ⁇ element of the closure cap in a view from above ( Figure 6a) and from below ( Figure 6b),
- Figure 7 shows an embodiment of an operation ⁇ element of the closing lid according to figure 1,
- Figures 8a and 8b an embodiment of a Klemmele ⁇ ment of the closing lid according to figure 1, wherein figure 8a the inner region of the clamping element, and Figure 8b shows the Klemmele ⁇ element from the outside,
- Figure 9 is a three-dimensional view of the end cover Ver ⁇ according to Figure 1, one recognizes the recording apparatus of the Ver gleichde ⁇ ckels and a therein elec- trical fuse, and
- FIGs 10 and 11 embodiments of a Auslettehe ⁇ bel, a lever and a tripping ⁇ plunger for the cap according to Figure 1 in a three-dimensional view.
- FIG. 1 shows an electrical switchgear 1 with a fuse housing in the form of a fuse mounting 2, which is equipped with a fuse 3.
- the fuse assembly 2 has three connection feedthroughs, namely a downstream connection bushing 4, a front connection bushing 5 and a rear connection bushing 6.
- the rear connection bushing 6 communicates with the outgoing connection bushing 4 by means of a busbar 7.
- a Anlagenbe ⁇ container 8 which is designed for example encapsulated and filled with a gas such as SF 6 -GaS.
- a cable connection space 9 In or on the plant container 8 is a variety of electrical components, such as switching elements 10, 10 'and 10 "and other elements such as a mechanical on ⁇ operation of the switching device, which is arranged outside the plant container, a support plate 11 of the switching device and Er ⁇ dungs giftede 14 with carrier plate.
- FIG. 2 a shows a control element 35, which is connected to a clamping element 40.
- the clamping element 40 has a clamping portion 45 on which a sealing ring 50 is applied.
- the sealing ring 50 is supported ⁇ th in a groove 55 which is formed by two groove side walls 60 and 65 and a groove bottom ⁇ 70th
- the groove side wall 60 is formed by a flange portion 75 of the clamping member 40, which adjoins the groove bottom 70.
- the other groove side wall 65 is formed by a De ⁇ ckelteil 80, which closes the fuse housing or the fuse attachment 2.
- a housing wall 85 Darge ⁇ represents, which forms the housing opening 90, in which the closure lid 30 is inserted.
- the Auslösestö ⁇ ßel 95 is connected to a lever 105 in connection, which is pivotally mounted on a pivot bearing 110.
- the pivot bearing 110 is formed by the cover part 80.
- the lever 105 is further provided with a Auslettehe ⁇ bel 115 in connection belonging to a not shown trigger linkage, with which the switchgear 1 can be switched off according to FIG 1, when the e in the figure 2a b safety illustrated fuse 3 triggers.
- Deflection lever 105 is to cause a movement of the Auslösestö ⁇ ßels 95 in the X direction in a vertical movement of the trigger lever 115 in the Y direction.
- a pressure compensating valve 120 is also shown, which allows a slow pressure equalization between the inner space 125 of the fuse housing 2 and the outer space 130 outside of the fuse housing 2.
- Pressure compensating valve 120 may be, for example, a type of valve used in heating construction. Such valves allow a slow pressure equalization, but they block with rapid changes in pressure difference due to the small opening diameter.
- Function of the pressure compensation valve 120 is to avoid or reduce long ⁇ sam occurring pressure differences between the inner space 125 and the outer space 130 by a corresponding pressure equalization is made possible by the valve.
- rapid pressure changes are not to be abandonedgli ⁇ chen; with rapid pressure changes, the pressure compensation valve 120 should block or close. Locking the pressure compensating valve 120 for fast Druck Masse ⁇ approximations is advantageous to achieve assurance 3 in the case of a triggering of the Si that is due to the occurring in the interior 125 heating the piston moves in the X direction to the cover portion 80 toward 100 so as a in the figure 2a upward movement of the trigger lever 115 to cause.
- the beschrie ⁇ bene pressure equalization valve 120 is important because this pressure differentials slowly occurring, such as be ⁇ dingt by thermal heating of the fuse 3 during normal operation - without tripping the fuse 3 - or by weather-related pressure differences between the In ⁇ nenraum 125 and the outer space 130, can compensate.
- FIG. 2a shows a bedsstellfe ⁇ 145 of which cooperates with the trip lever 115 and diesel sen in an inactive position is can be seen beyond. Only when the trigger plunger 95 is moved to the right with the piston 100 in Figure 2a, the trigger lever 115 is moved upward in Figure 2a.
- the control element 35 is connected to the clamping element 40.
- the clamping element 40 has a connection piece 150, which is in communication with the clamping portion 45 of the clamping element 40.
- a pivot bearing 155 is formed, which forms a pivot axis 160.
- the control element 35 is attached.
- an eccentric is in the area of connection between the connector 150 and the operating member 35 on the operating member 165 is ⁇ formed which upon pivoting of the operating element 35 about the pivot axis 160 with a support surface 170 on the Au ⁇ zseite the lid part 80 cooperates.
- the eccentric section 165 is equipped with a planar subsection 175.
- the flat sub-section 175 is arranged such that it rests flat against the support surface 170 when the Whylement 35 is pivoted downward. This will be explained in more detail in connection with the following figures.
- the closure lid 30 is Darge ⁇ provides after the control element 35 has been pivoted upwards and thus is in its unlocked position in which the closure lid 30 can be removed from the backup attachment 2.
- the configuration of the Exzente- rabitess 165 of the operating element 35, the clamping member 40 and the clamping portion 45 is moved in the figures 3a and 3b to the left at a Schwen ⁇ ken of the operating member 35 upward.
- the one Nutsei ⁇ tenwand 60 and the sealing ring 50 a small gap 200 is gebil ⁇ det by the movement of the clamping portion 45 left between the sealing ring 50 and the flange portion 75 and between. Since thus no pressure is exerted on the sealing ring 50, is also between the housing wall 85 and the sealing ring 50 an air gap 210 is present, as it can be seen in Figure 2a.
- the groove side wall 60 will press laterally on the sealing ring 50 and exert a deformation force on this.
- the sealing ring 50 is preferably made of an elastomer or an elastic, largely incompressible material, so that upon compression of the sealing ring 50 along the X direction, a broadening of the sealing ring 50 in the Y direction must occur. As a result, the sealing ring 50 will become thicker in the Y direction, so that the air gap 210, which can still be seen in FIGS. 2a and 3a, is filled by the sealing ring 50.
- the sealing ring 50 is thus pressed against the housing ⁇ wall 85, so that the clamping portion 45 together with the sealing ring 50, the closure lid 30 in the housing 90 opening completely seals.
- this seal is not only gas or airtight, but also waterproof. 5 shows again a different cross section of the Ver ⁇ closing lid 30, in which 135 may better recognize the fuse 3 and the on ⁇ sampling device for receiving the fuse.
- an arrow 215 represents ones shown, such as a striker pin of the fuse would hit an impact ⁇ page 220 of the trigger plunger 95 in the event of tripping of the fuse 3 3, whereby the trip rod would be 95 moves in the X direction to the right and by Mediation ⁇ ment of the reversing lever 105 would trigger a movement of the trigger lever 115 in the Y direction.
- Figures 6a and 6b show an embodiment of the cover part 80 of the closure lid.
- the Figure 6a is a view from the inside is because ⁇ shown in a view from the outside and in the figure 6b.
- FIG. 6a In the figure 6a can be seen two support surfaces 170, which cooperate with two eccentric portions 165 of the control element 35.
- the two eccentric portions 165 of the control element 35 are shown in more detail in FIG. It can be seen except the ⁇ how the plan subsections are formed on the Exzente ⁇ rabêt 165,175.
- holes 240 can be seen in FIG. 7, which allow a pivotable mounting of the Be ⁇ serving element 35 on the clamping element.
- FIG. 8a shows the inside of an exemplary embodiment of the clamping element 40.
- the clamping section 45 to which the flange section 75 adjoins, can be seen.
- the Flanschab ⁇ section 75 forms the groove side wall 60 to which the not shown in the figure 8a sealing ring 50 is applied or may abut depending on the position of the control element.
- holding portions 230 which are paired ⁇ arranged for a storage of the operating element 35 are suitable.
- one of the two eccentric sections 165 according to FIG. 7 is inserted between two immediately adjacent holding sections 230 and held therein in a pivotable manner.
- the measures provided for a pivotable mounting holes in the operating element 35 are designated by the reference numeral 240 and in which to kor ⁇ respond Schlierenden holes in the clamping element 40 with the dustszei ⁇ chen 245th
- holding sections 260 which serve to pivotably hold the reversing lever 105 and form the pivot bearing 110 for holding the reversing lever 105, are recognizable in FIG. 6b.
- FIG. 8b the clamping element 40 is shown from the outside.
- FIG. 9 shows the closure lid 30 with a fuse 3 installed thereon in a three-dimensional view from the side.
- the control element 35 is located as ⁇ when in a locked position, so that the sealing ring is pressed radially outward 50 thereby approximately housing in the case of a Posi ⁇ tioning of the sealing cover 30 within a securing 2 is an air-tight seal of the Sich ceremoniessge ⁇ reheatuses would be effected ,
- FIGS. 10 and 11 show exemplary embodiments of the release lever 115, the deflection lever 105 and the release plunger 95 with the molded-on piston 100 again in a three-dimensional representation.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800283297A CN101496125B (zh) | 2006-07-31 | 2007-04-20 | 用于电开关设备安全壳体的封闭盖 |
PCT/EP2007/053883 WO2008015032A1 (de) | 2006-07-31 | 2007-04-20 | Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage |
EP07728342A EP2047495A1 (de) | 2006-07-31 | 2007-04-20 | Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage |
RU2009107126/07A RU2427054C2 (ru) | 2006-07-31 | 2007-04-20 | Закрывающая крышка для корпуса с предохранителями электрического распределительного устройства |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006036531.3 | 2006-07-31 | ||
DE102006036531 | 2006-07-31 | ||
PCT/EP2007/053883 WO2008015032A1 (de) | 2006-07-31 | 2007-04-20 | Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008015032A1 true WO2008015032A1 (de) | 2008-02-07 |
Family
ID=45094858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/053883 WO2008015032A1 (de) | 2006-07-31 | 2007-04-20 | Verschlussdeckel für ein sicherungsgehäuse einer elektrischen schaltanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2047495A1 (de) |
RU (1) | RU2427054C2 (de) |
WO (1) | WO2008015032A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946351A (en) * | 1975-02-28 | 1976-03-23 | Mcgraw-Edison Company | Shielded fuse assembly |
EP0436255A2 (de) * | 1990-01-04 | 1991-07-10 | Siemens Aktiengesellschaft | Gehäuse für ein Hochspannungs-Bauteil mit einer Verschluss- und Dichtungsvorrichtung |
DE4116058A1 (de) * | 1991-05-16 | 1992-11-19 | Concordia Sprecher Energie | Schaltanlage |
EP0517295A2 (de) * | 1991-05-24 | 1992-12-09 | Giampietro Tosi | Schwefelhexafluoridisolierter Mittelspannungsschalter mit drei Positionen |
-
2007
- 2007-04-20 RU RU2009107126/07A patent/RU2427054C2/ru not_active IP Right Cessation
- 2007-04-20 WO PCT/EP2007/053883 patent/WO2008015032A1/de active Application Filing
- 2007-04-20 EP EP07728342A patent/EP2047495A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3946351A (en) * | 1975-02-28 | 1976-03-23 | Mcgraw-Edison Company | Shielded fuse assembly |
EP0436255A2 (de) * | 1990-01-04 | 1991-07-10 | Siemens Aktiengesellschaft | Gehäuse für ein Hochspannungs-Bauteil mit einer Verschluss- und Dichtungsvorrichtung |
DE4116058A1 (de) * | 1991-05-16 | 1992-11-19 | Concordia Sprecher Energie | Schaltanlage |
EP0517295A2 (de) * | 1991-05-24 | 1992-12-09 | Giampietro Tosi | Schwefelhexafluoridisolierter Mittelspannungsschalter mit drei Positionen |
Also Published As
Publication number | Publication date |
---|---|
RU2009107126A (ru) | 2010-09-10 |
EP2047495A1 (de) | 2009-04-15 |
RU2427054C2 (ru) | 2011-08-20 |
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