EP3928340A1 - Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system - Google Patents
Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive systemInfo
- Publication number
- EP3928340A1 EP3928340A1 EP20718184.3A EP20718184A EP3928340A1 EP 3928340 A1 EP3928340 A1 EP 3928340A1 EP 20718184 A EP20718184 A EP 20718184A EP 3928340 A1 EP3928340 A1 EP 3928340A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- drive
- pawl
- lever
- coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 79
- 238000010168 coupling process Methods 0.000 title claims abstract description 79
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 79
- 230000006835 compression Effects 0.000 claims description 36
- 238000007906 compression Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
Definitions
- Spring system for a drive system with coupling, spring system with coupling, drive system with coupling and spring system and switchgear with such a drive system
- the invention relates to a spring system for a drive system with a clutch, a spring system with a clutch, a drive system with a clutch and spring system and a switchgear with such a drive system.
- Switchgear here is to be understood as meaning switchgear for low and medium voltages, in particular medium voltages from 1 kV up to and including 52 kV.
- drive systems are known from the prior art that implement the drive of a two-position or multi-position switch by means of different drives with different drive parameters and additional interlocks or a drive that fulfills all switching operations with a predetermined drive parameter set and therefore does not optimally respond to the individual switching operations is designed.
- the spring system in conventional drive systems of a two or more position switch is often implemented by leg springs with two contact points per leg.
- Switch-disconnectors must also be in the three different
- Switching states "OFF”, “ON” or “EARTH” are required. This requires a drive which switches the switching device to one of the three switching states at a certain switching speed and holds it there. It is possible to switch between the switching states Off and On or Off and earth switched back and forth, for this the reversal of the drive direction is necessary. These systems are therefore more expensive due to fixed parameter specifications and more complex in their design.
- One embodiment relates to a spring system with a compression spring, which compression spring works as a pressure accumulator or tension accumulator due to its installation situation and storage. This is achieved by using a compression spring, which compresses the compression spring directly in one switching direction, i.e. preloaded, is or can be preloaded and indirectly compressed in the opposite switching direction via two lugs, i.e. preloaded, is or can be preloaded. This preload causes the mechanical energy to be stored for the respective switching process.
- the construction is simpler due to the simpler mounting of the compression spring compared to a leg spring. Furthermore, the compression spring does not have as many frictional losses and thus a weaker spring can be installed. The spring force is converted into torque by the drive lever. This offers the possibility to vary the torque curve and to use the energy optimally.
- the spring system can be used for a two-position drive (separate spring pack for disconnector and earthing) or for a three-position drive (disconnector and earthing joint spring pack).
- the spring system is formed from a tensioning lever, a first spring clip, a second spring clip, a compression spring, and a drive lever, a first spring plate and a second spring plate.
- the spring system further preferably has a first spring plate and / or a second spring plate. It is also preferred that the spring system for a jump drive or storage drive designed for a switch-disconnector of a medium-voltage system with three switch positions "ON”, “OFF” and “EARTH” or two switch positions “OFF”"ON” or “OFF””EARTH” is.
- a spring system is also preferred, the spring system having a drive lever and a first pawl, second pawl, third pawl and fourth pawl, together pawls, the pawls being designed to control and position the switching positions by arranging the pawls in this way that they act differently on the drive lever in different switching positions.
- the spring system (9) is designed for a three-position operation, with the tensioning lever (100) of the first spring clip (200), the second spring clip (500), the first spring plate (300) and the second spring plate (500) the compression spring (400) and the drive lever (600) to be tensioned or tensioned under pressure.
- a spring system is preferred which is designed for a three-position operation, with the tensioning lever of the first spring tab, the second spring tab, the first spring plate and the second spring plate of the compression spring and the drive lever to be tensioned, the compression spring between the the first spring tab and the second spring tab is compressed to or is compressible.
- Another embodiment relates to a coupling with two of the above spring systems for a drive system for a three-position switch, in particular for with telthesesschaltanlagen, which can be controlled via a control means that one of two different drive units, two spring systems, a first spring system and a second spring system, acts on a drive axle and such a predetermined shifting process can be carried out, the clutch consisting of a first clutch part which can be or is fixedly coupled to the drive axle and a second clutch part which is movably connected to the first clutch part, the second clutch part each being connectable to a drive unit is. Whereby only one drive unit is connected to the second coupling part and the other drive unit is blocked.
- the spring systems contain compression and / or tension springs or are formed from them.
- the clutch is designed in such a way that the clutch securely, fixes, holds the respective switching position.
- the respective switch position include: an on position, an off position, that is to say one
- control means is a control lever.
- the drive system further comprises:
- the drive units containing a first spring system and a second spring system, a first tensioning lever which is connected to the first spring system and a second tensioning lever which is connected to the second spring system,
- first drive pin and a second drive pin a first pawl for the first spring system, a second pawl for the first spring system, a third pawl for the second spring system and a fourth pawl for the second spring system, wherein the first pawl and the second pawl are set up to the first drive pin in a switching To fix position and the third Kl ke and the fourth pawl are set up to fix the second drive pin in a switching position.
- a drive system is also preferred, the first spring system being connected at a coupling point to the first tensioning lever for tensioning the first spring system and the first tensioning lever being pivotable about a pivot axis and the second spring system being connected to a coupling point with the second tensioning lever for tensioning the second spring system is connected and the second clamping lever can be pivoted about a pivot axis and thus a jump or storage drive is formed.
- Three-position switch of a medium-voltage system is designed and the drive axis of the drive system is held by a Klin kensystem of first pawl, second pawl, third pawl and fourth pawl during a clamping process and is released at the end of the clamping process.
- a medium-voltage system is also preferred which has one or more drive systems according to the above statements for one or more three-position switches, the drive system having at least one spring system according to the above statements and a clutch according to the above statements.
- Fig. 1 Schematic representation of an inventive
- Fig. 3 Schematic representation of an inventive
- Fig. 4 Schematic representation of an inventive
- FIG. 5 Schematic representation of an inventive
- Fig. 12 Schematic representation of an inventive
- FIG. 13 Schematic representation of a drive system according to the invention with a spring system for the Dreistel treatment operation stretched on train.
- Figure 1 shows a schematic representation of an inventions to the invention drive system 10 with spring systems 8, 9 and a coupling consisting of a first coupling part 7 and a second coupling part 4.
- the first coupling part 7 is firmly connected to the drive shaft 15 for a three-position switch.
- the second coupling part 4 is movable about an axis of rotation 40 of the second coupling part 4 and has profiles to mechanically couple either the first drive pin 5 or the second drive pin 6 to the first coupling part 7 in such a way that
- the first spring system 8 is connected to the first drive pin 6 and the second spring system 9 is connected to the second drive pin 5.
- the first tensioning lever 1 is connected to the first spring system 8 and the second tensioning lever 2 is connected to the second spring system 9.
- the tensioning levers 1, 2 serve to tension the spring systems 8, 9, that is to say to introduce mechanical energy into the spring system.
- the first pawl 25 and the second pawl 26 are used to fix the first drive pin 6 in a switching position.
- the third pawl 23 and the fourth pawl 24 are used to fix the second drive pin 5 in a switching position.
- the control means 3 can be pivoted about the control means rotation axis 30 and the control means 3 thus determines whether the second coupling part 4 couples the second drive pin 5 or the first drive pin 6 to the first coupling part 7.
- the control means 3 is moved here by the first clamping lever 1 and / or the second clamping lever 2.
- the first spring system 8 is connected at the coupling point 12 to a first tensioning lever 1 for tensioning the first spring system 8.
- the first tensioning lever 1 can be pivoted about a pivot axis 11.
- the second spring system 9 is connected at the coupling point 22 to a second tensioning lever 2 for tensioning the second spring system 9.
- the second clamping lever 2 can be pivoted about a pivot axis 21.
- the drive system 10 is a typical jump drive or storage drive, for example for a switch disconnector of a medium-voltage system with three switch positions "ON”, “OFF” and “EARTH”.
- the drive axle 15 of the drive system is switched off by a latch system
- the first pawl 25, second pawl 26, third pawl 23 and fourth pawl 24 are held in place during the tensioning process and released at the end either directly or by an extra trigger, not shown here.
- a component of the drive system is the clutch, which consists of the second Coupling part 4, also pivot lever, and the first coupling part 7, also clutch lever.
- the clutch is controlled by control means 3, here a control lever, and the tensioning levers, first tensioning lever 1 and second tensioning lever 2 perform, the first spring system 8 via the first clamping lever 1 or the second spring system 9 via the second clamping lever 2 tensioned, during the tensioning process the first drive pin 6 or the second drive pin 5 is held in place by the second pawl 26 or the third pawl 23.
- the control means 3 is actuated by the first clamping lever 1 or the second clamping lever 2, which then moves the second coupling part 4 in the coupling and encloses the corresponding drive pin, i.e. the first drive pin 6 or the second drive pin 5.
- the corresponding spring system is thus connected via the second coupling part 4 and the first coupling part 7 to the drive shaft 15 of the switching device, for example the three-position switch.
- the entire clutch that is, the second clutch part 4 and the first clutch part 7 is moved with and transmitted to the drive axle 15 and thus the switching device.
- the second coupling part 4 is secured by the other drive pin 5 or 6. If a spring system, that is to say a drive, is switched on, the control means 3 blocks the respective other drive.
- the respective spring system 8 or 9 is tensioned and the respective drive pin 5 or 6 is held in place by the fourth pawl 24 or first pawl 25. If the respective drive pin 5 or 6 is released, it takes the first coupling part 7 with it and thereby moves the on
- the drive axis 15 and thus the switching device If the drive is in the OFF position, the first coupling part 7 is held and fixed by the two drive bolts 5 and 6, and thus the drive axle 15 and thus the switching device.
- FIG. 2 shows a schematic representation of a coupling according to the invention, consisting of a first coupling part 7 and a second coupling part 4 with the drive bolts 5, 6, the control means 3, the first clamping lever 1 and the second clamping lever 2.
- the first clamping lever 1 is about the
- the pivot axis 11 can be pivoted and thus the first spring system 8 (not shown here) can be tensioned via the coupling point 12.
- the second tensioning lever 2 can be pivoted about the pivot axis 21 and thus the second spring system 9, not shown here, can be tensioned via the coupling point 22.
- the control center 3 is pivotable or rotatable about the control central axis of rotation 30.
- the second coupling part 4 is pivotably mounted on the axis of rotation 40 relative to the first coupling part 7, with an opening in the drive axis 15 limiting the movement of the second coupling part 4.
- the first drive pin 6 is connected to the first coupling part 7 and thus to the drive axle 15 via the second coupling part 4.
- FIG 3 shows a schematic representation of a coupling according to the invention, consisting of a first coupling part 7 and a second coupling part 4 with the drive bolts 5, 6, the control means 3, the first clamping lever 1 and the second clamping lever 2, in the earthing position curious; excited.
- FIG. 4 shows a schematic representation of a coupling according to the invention, consisting of a first coupling part 7 and a second coupling part 4 with the drive bolts 5, 6, the control means 3, the first clamping lever 1 and the second clamping lever 2, in the earthing position switched on.
- FIG. 5 shows a schematic representation of a coupling according to the invention, consisting of a first coupling part 7 and a second coupling part 4 with the drive bolts 5, 6, the control means 3, the first clamping lever 1 and the second clamping lever 2, in the disconnector position curious; excited.
- FIG. 6 shows a schematic representation of a coupling according to the invention, consisting of a first coupling part 7 and a second coupling part 4 with the drive bolts 5, 6, the control means 3, the first clamping lever 1 and the second clamping lever 2, in the disconnector position switched on.
- FIG. 7 shows a schematic representation of a spring system 9 according to the invention.
- the spring system 9 is, for example, for a typical jump drive or storage drive for a switch disconnector of a medium-voltage system with three switch positions “ON”, “OFF” and “EARTH” or 2 switch positions “OFF “” ON “or” OFF “” EARTH “is used.
- the drive shaft of the drive is held by a latch system, not shown here, during the tensioning process and released at the end directly or by an extra trigger.
- One component of the drive is the spring system , which consists of the tensioning lever 100 of the first spring clip 200, the second spring clip 500, the optional first spring plate 300 and the optional second spring plate 500 of the compression spring 400 and the drive lever 600.
- the control and Po- The switching positions are positioned using pawls, not shown here, compare FIGS. 10 to 13.
- the compression spring 400 is tensioned via the tensioning lever 100.
- the drive lever 600 is held in place by an "off - pawl" not shown here.
- the first spring tab 200 and the second spring tab 500 only serve as a spring guide in this switching direction.
- Compression spring 400 compressed, although the clamping lever 100 and the drive lever 600 move apart.
- the "on - latch” is or can be released, the drive lever 600 is then free and is pulled into the switching end position via the second spring tab 500 and the compression spring 400.
- the drive lever 600 is in the "off” position "has reached, the" off - latch "falls, so this switching process is completed.
- the mode of operation can also be swapped, so that when switching on the first spring tab 200 and the second spring tab 500 are pulled and the tensioning lever 100 and drive lever 600 press directly on the compression spring 400 when switching off.
- FIG. 8 shows a schematic representation of a spring system according to the invention, tensioned by the tensioning lever 100 and drive lever 600.
- the tensioning lever 100 presses the compression spring 400 via the first plate spring 300 via the second plate spring 301 against the drive lever 600.
- FIG. 9 shows a schematic representation of a spring system 9 according to the invention, tensioned by the first spring tab 200 and the second spring tab 500.
- the tensioning lever 100 and the drive lever 600 have moved in opposite directions and are now tensioning the compression spring 400 between the first spring tab 200 and second spring clip 500, via the first plate spring 300 and the second plate spring 301.
- FIG. 10 shows a schematic representation of a drive system according to the invention with a spring system 9 for the
- the spring system 9 here is, for example, for a typical spring drive or accumulator drive that is used for a switch disconnector of a medium-voltage system with three switch positions "ON”, “OFF” and “EARTH”.
- the drive shaft of the drive is driven by a latch system 701, 702, 703, 704 held during the tensioning process and released at the end directly or by an extra trigger.
- a component of the drive is the spring system 9, which consists of the tensioning lever 100 of the first spring clip 200, the second spring clip 500, the optional first spring plate 300 and the optional second spring plate 500, the compression spring 400 and the drive lever 600 and / or an axle through the drive lever 600. In the following, with the drive lever 600, the axle through the drive lever 600 is also disclosed.
- the control and positioning of the switching positions is implemented by the pawl system 701, 702, 703, 704.
- the second spring pawl 702 and the fourth spring pawl 704 block the drive lever 600.
- the compression spring 400 is tensioned via the tensioning lever 100.
- FIG. 11 shows a schematic representation of a drive system according to the invention with a spring system 9 for the
- FIG. 12 shows a schematic representation of a drive system according to the invention with a spring system 9 for the
- the drive lever is pawl 704 here by the fourth spring locked and the compression spring 400 between the first spring tab 200 and the second spring tab 500 pressed together.
- FIG. 13 shows a schematic representation of a drive system according to the invention with a spring system 9 for the
- control means control lever
- control center rotation axis of control means 3
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019204465 | 2019-03-29 | ||
PCT/EP2020/058339 WO2020200951A1 (en) | 2019-03-29 | 2020-03-25 | Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3928340A1 true EP3928340A1 (en) | 2021-12-29 |
Family
ID=70277333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20718184.3A Pending EP3928340A1 (en) | 2019-03-29 | 2020-03-25 | Spring system for a drive system comprising a coupling, spring system comprising a coupling, drive system comprising a coupling and a spring system and switchgear comprising such a drive system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3928340A1 (en) |
CN (2) | CN113748476A (en) |
WO (2) | WO2020200951A1 (en) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3036670C2 (en) * | 1980-09-29 | 1982-07-01 | Siemens AG, 1000 Berlin und 8000 München | Drive for a medium voltage switch |
DE3239839C1 (en) * | 1982-10-27 | 1984-03-01 | Siemens AG, 1000 Berlin und 8000 München | Drive for an electrical three position switch |
DE3663760D1 (en) * | 1985-08-19 | 1989-07-06 | Siemens Ag | Operating mechanism for an electric switch with three positions |
FR2609839B1 (en) * | 1987-01-21 | 1989-04-07 | Merlin Gerin | MECHANISM FOR HANGING THE CONTROL OF A THREE-POSITION CIRCUIT BREAKER |
FR2660109B1 (en) * | 1990-03-23 | 1992-06-05 | Merlin Gerin | CONTROL MECHANISM OF A THREE-POSITION SWITCH. |
FR2696866B1 (en) * | 1992-10-13 | 1994-12-02 | Merlin Gerin | Three-position switch actuation mechanism. |
DE4445081C1 (en) * | 1994-12-05 | 1996-04-11 | Siemens Ag | Three setting switch drive for medium voltage switchgear |
US6940032B2 (en) * | 2004-01-12 | 2005-09-06 | General Electric Company | Method and apparatus for achieving three positions |
WO2007016880A1 (en) * | 2005-08-10 | 2007-02-15 | Siemens Aktiengesellschaft | Circuit breaker |
US7667154B2 (en) * | 2007-04-09 | 2010-02-23 | ASCO Power Tehnologies, L.P. | Three-position apparatus capable of positioning an electrical transfer switch |
FR2916300B1 (en) * | 2007-05-15 | 2009-07-10 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING THE CONTACT OR NON-CONTACT OF TWO PARTS AND AN ELECTRIC APPARATUS COMPRISING SUCH A DEVICE |
DE102008026798B3 (en) * | 2008-06-02 | 2009-07-30 | Siemens Aktiengesellschaft | Drive system for electrical switching devices |
KR101038089B1 (en) * | 2009-08-28 | 2011-06-01 | 주식회사 효성 | operating device for switch |
FR3045930B1 (en) * | 2015-12-18 | 2017-12-22 | Schneider Electric Ind Sa | DEVICE FOR GUIDING A SPRING IN A CONTROL MECHANISM AND ELECTRICAL PROTECTION APPARATUS COMPRISING IT. |
CN108766802A (en) * | 2018-07-27 | 2018-11-06 | 中骏电气(厦门)有限公司 | A kind of three station operating mechanisms |
-
2020
- 2020-03-25 EP EP20718184.3A patent/EP3928340A1/en active Pending
- 2020-03-25 CN CN202080032198.5A patent/CN113748476A/en active Pending
- 2020-03-25 WO PCT/EP2020/058339 patent/WO2020200951A1/en unknown
- 2020-03-26 WO PCT/EP2020/058523 patent/WO2020201000A1/en active Application Filing
- 2020-03-26 CN CN202080034972.6A patent/CN113811970A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2020200951A1 (en) | 2020-10-08 |
WO2020201000A1 (en) | 2020-10-08 |
CN113811970A (en) | 2021-12-17 |
CN113748476A (en) | 2021-12-03 |
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