WO2000003405A2 - Niederspannungs-leistungsschalter mit einem nachrüstbaren motoraufzug - Google Patents
Niederspannungs-leistungsschalter mit einem nachrüstbaren motoraufzug Download PDFInfo
- Publication number
- WO2000003405A2 WO2000003405A2 PCT/DE1999/002030 DE9902030W WO0003405A2 WO 2000003405 A2 WO2000003405 A2 WO 2000003405A2 DE 9902030 W DE9902030 W DE 9902030W WO 0003405 A2 WO0003405 A2 WO 0003405A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- elevator
- voltage circuit
- motor elevator
- low
- Prior art date
Links
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
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- 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
- H01H3/3005—Charging means
Definitions
- the invention relates to a low-voltage circuit breaker with a retrofittable motor elevator, the output shaft of which can be coupled to a tension shaft of the spring accumulator of the low-voltage circuit breaker mounted in a bearing block.
- Low-voltage circuit breakers generally have a manual drive as basic equipment, in which a spring accumulator is tensioned with a certain predetermined number of movement strokes. The “tensioned” state of the spring accumulator is then displayed and the switch is ready to be switched on when the other locking conditions, such as “door closed", “crank of the drive mechanism removed” and the like, are met.
- the motor elevator For higher management or comfort requirements, there is also the motor elevator. Because the manual winding is the basic version and the motor winding is additional equipment, the motor winding is designed so that it forms a unit that can be retrofitted. It should also be possible to retrofit switches that are already installed in a switchgear. This should be possible without much effort.
- the motor-winding unit usually consists of a housing in which there is a geared motor, the gearbox of which has a large reduction ratio and the output shaft of which is coupled to the tensioning shaft of the spring mechanism of the low-voltage circuit breaker, on which the manual winding also acts.
- US Pat. No. 4,901,821 shows, in particular in FIG. 3, the fastening of a motor gear unit for the lift of the spring accumulator of a low-voltage circuit breaker, in which this motor gear unit is fastened to a support plate by means of screws. This requires access to the screws from one side of the support plate and space for attaching the motor-gear unit from the other side thereof. Subsequent installation of the motor-gear unit with a low-voltage circuit breaker installed in a switchgear is not possible with this version.
- a motor-gear unit described in US Pat. No. 4,649,244 for lifting an energy store for switching off a low-voltage circuit breaker is also not suitable for retrofitting from the front into a switch located in a switchgear. All previous versions of motor lifts for tensioning spring accumulators in low-voltage circuit breakers only allow installation from the side of the low-voltage circuit breaker, i.e. only with switches that are not installed in a switchgear. It is therefore not possible to retrofit such switches in a switchgear without problems.
- the object of the present invention is therefore to provide a mounting for motor lifts, which enables mounting of the same from the front of the low-voltage circuit breaker and thus retrofitting such switches to an installed position.
- centering elements are provided on a flange of the bearing block of the tensioning shaft of the spring accumulator for engaging in mating elements at the gearbox output of the motor elevator, into which the motor elevator with a small path axially in the direction of the tensioning shaft can be inserted.
- the small axial path required when inserting the motorized elevator into the centering elements enables the motorized elevator to be retrofitted from the front if a switch is installed in a switchgear assembly.
- the motor elevator can be pivoted in these centering elements and the insertion into these centering elements takes place in a position pivoted in the switch in the direction of the front of the switch.
- the fastening means for locking the motor elevator in the pivoting direction can advantageously consist of a locking element on the motor / gear block of the motor elevator and one in the
- Insulating parts on the switch frame arranged spring catch exist. However, it can also be formed by an eyelet on the motor / gear block of the motor elevator, a threaded hole in a stop and a screw which can be screwed into the threaded hole through the eyelet. In any case, handling in the assembly direction of the motor elevator, that is to say from the front of the low-voltage circuit breaker, is essential.
- the means for axially fixing the motor elevator in the Centering elements of the flange of the bearing block of the tensioning shaft of the spring elevator and in the coupling of the tensioning shaft is advantageously a rigid support arm attached to the bearing block of the tensioning shaft of the spring elevator, which has an integrally formed angle.
- the means for axially fixing the motor elevator in the centering elements of the flange of the bearing block of the tensioning shaft of the spring elevator and in the coupling of the tensioning shaft can also be a resilient wire bracket which is fastened with hooks in holes in the bearing block of the tensioning shaft of the spring accumulator and which comprises the motor elevator , and can be locked in the locking elements provided on the motor elevator. Before installing the motor elevator, this wire bracket is installed using the holes. The hooked ends of the
- Wire bracket and the holes are dimensioned so that the wire bracket can hang down and does not hinder the insertion of the motor elevator. It is also dimensioned so that it includes the motor elevator.
- the end position of the motor elevator is defined by suitable stops and in this end position the wire bracket can be pulled up from below via the motor elevator and locked in the locking elements provided for this purpose.
- wire bracket for fastening a component here an arcing chamber for an electrical switching device, by means of a resilient wire clip
- a similar fastening is generally known for fixing distributor caps in ignition distributors of motor vehicles. In all known cases, however, they only serve to fix passive elements that are not exposed to any significant mechanical stresses.
- the advantage of the wire bracket in the present application is that it does not have to be installed in principle, like the rigid support arm, regardless of whether it is needed or not. He's also cheaper and can be supplied with the motorized elevator. A combination of both fastenings can of course also be used.
- Figure 1 shows schematically the arrangement of the motor elevator for the spring accumulator in the view from the front of the low-voltage circuit breaker.
- Figure 2 shows schematically a side section through a low-voltage circuit breaker with the motor elevator in the position in which it is used.
- Figure 3 shows schematically a side section through a low-voltage circuit breaker with the motor elevator in the fixed position.
- Figure 4 shows the bearing block of the tensioning shaft of the spring accumulator on which the motor elevator is mounted.
- FIG. 5 shows a possible form of fixing the motor elevator in the pivoting direction.
- FIG. 6 shows another possible form of fixing the motor elevator in the pivoting direction.
- FIG. 7 shows an alternative form of fastening the motor elevator.
- FIG. 1 shows schematically the arrangement of the motor elevator for the spring accumulator in the view from the front of the low-voltage circuit breaker 1, with the known ones Controls 2, such as ON and OFF push buttons, the display elements 3, such as the ready display and memory display.
- the motor winding 5 consisting of the motor 6, the gear 7 and the clutch 8 is shown in the fixed position.
- centering elements 9 are provided for engagement in counter-elements 10 at the gearbox output of the motor elevator 5, which, in addition to their centering function, form a fixing point of the motor elevator 5.
- This support arm 13 also forms the support for the motor elevator 5.
- an eyelet 15 is provided in this embodiment, by means of which the motor elevator 5 with a screw 16 (FIG. 6) on a suitable, with a corresponding threaded bore stop 17 ( Figure 2 and 3) can be attached.
- FIG. 2 shows a side section through a low-voltage circuit breaker 1 with the manual winding lever 4 as basic equipment, which gradually tensions the spring-loaded mechanism at each stroke by means of a crank arm 18 via a ratchet lock 19 and the motor elevator 5 according to the invention in the position pivoted to the front of the switch, in which it is used. It is seen standing in front of the switch, installed from the front with a small lateral path, because this is the cheapest installation method for coupling with the tensioning shaft 12 of the spring accumulator.
- the motor elevator 5 is used in the pivoted position shown, being at the angle 14 of the support arm 13 can be passed, then tilted back in the direction of the arrow in the switch and locked into place.
- the parts of the tooth coupling are centered by centering elements 9, which are located on the bearing block 11 of the tensioning shaft 12 of the spring accumulator and on the gearbox output of the motor elevator 5.
- FIG. 3 shows the motor elevator 5 in the locked position. In this position it is in engagement with the angle 14 of the support arm 13 and is thus fixed in the axial direction.
- the motor lift 5 is fixed radially by the engaging centering elements 9 on the bearing block 11 of the tensioning shaft 12 of the spring accumulator and on the gearbox output of the motor lift 5.
- the motor lift 5 is provided for locking in the pivoting direction about the axis of the clutch 8 provided with an eyelet 15, by means of which it can be fastened with a screw 16 (FIG. 6) to a stop 17 provided with a corresponding threaded bore, not shown.
- FIG. 4 shows the bearing block 11 of the tension shaft 12 of the
- FIG. 5 shows another possible form of fixing the motor elevator 5 in the pivoting direction.
- a locking element 21 is provided, which in one in the Insulating parts 22 on the switch frame provided spring catch 23 is pressed in and thus secured against pivoting back.
- FIG. 6 again shows in detail the possible form of fixing the motor elevator 5 in the pivoting direction already mentioned in connection with FIG.
- an eyelet 15 is provided on the motor / transmission block 20, by means of which it is secured with the aid of a screw 16 on a corresponding stop on the switch frame (not shown here) against pivoting back.
- FIG. 7 shows an alternative fastening of the motor elevator 5 by means of a spring catch.
- a resilient wire bracket 24 which hangs down due to the hinge effect of its attachment with hooks 25 in holes 26 of the bearing block 11 of the tensioning shaft 12 of the spring accumulator when not in use, as is indicated by the broken line, is after the motor elevator has been inserted 5 pushed over locking elements 27 arranged on the motor / transmission block 20 and locks the motor elevator 5 in the same way as the angle 14 of the support arm 13 in the bearing block 11 of the tensioning shaft 12 of the spring accumulator. To release the spring wire bracket 24 is pressed down and the motor elevator 5 can be removed again.
- the motor / gear block 20 of the motor elevator 5 is provided in this embodiment with a latching element 21, which is pressed into a spring catch 23 provided in the insulating parts 22 on the switch frame and thus the motor elevator 5 against pivoting back backs up.
- the attachment according to the invention for motor elevators of low-voltage circuit breakers enables the motor elevator to be installed from the front of the low-voltage circuit breaker and thus retrofitted Built-in position switch.
- some features of the conventional motor elevator are retained, in particular the spur gearing of the shafts to be coupled together and the spring-loaded pressing device for the stub shaft of the motor elevator.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59903604T DE59903604D1 (de) | 1998-07-09 | 1999-06-30 | Niederspannungs-leistungsschalter mit einem nachrüstbaren motoraufzug |
EP99944263A EP1145263B1 (de) | 1998-07-09 | 1999-06-30 | Niederspannungs-leistungsschalter mit einem nachrüstbaren motoraufzug |
US09/743,350 US6380830B1 (en) | 1998-07-09 | 1999-06-30 | Low-voltage circuit-breaker with a retrofitted power-driven lift |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19832592.4 | 1998-07-09 | ||
DE19832592A DE19832592A1 (de) | 1998-07-09 | 1998-07-09 | Niederspannungs-Leistungsschalter mit einem nachrüstbaren Motoraufzug |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000003405A2 true WO2000003405A2 (de) | 2000-01-20 |
WO2000003405A3 WO2000003405A3 (de) | 2002-09-12 |
Family
ID=7874682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/002030 WO2000003405A2 (de) | 1998-07-09 | 1999-06-30 | Niederspannungs-leistungsschalter mit einem nachrüstbaren motoraufzug |
Country Status (4)
Country | Link |
---|---|
US (1) | US6380830B1 (de) |
EP (1) | EP1145263B1 (de) |
DE (2) | DE19832592A1 (de) |
WO (1) | WO2000003405A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20103230U1 (de) * | 2001-02-16 | 2002-06-20 | Siemens Ag | Niederspannungs-Leistungsschalter mit einer Lageranordnung für die Schaltwelle |
US8183488B2 (en) * | 2009-09-15 | 2012-05-22 | Eaton Corporation | Electrical switching apparatus and load conductor therefor |
CN106960769B (zh) * | 2016-12-26 | 2018-12-21 | 杜文福 | 一种断路安全锁以及双电源切换开关 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901821A (en) * | 1988-10-13 | 1990-02-20 | Siemens Energy & Automation, Inc. | Motor operator for a stored energy operating mechanism |
US5025171A (en) * | 1989-09-22 | 1991-06-18 | S&C Electric Company | Method and arrangement for providing power operation of switchgear apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1908751A1 (de) * | 1969-02-18 | 1970-11-05 | Siemens Ag | Mehrpoliges elektromagnetisches Schaltgeraet mit Lichtbogenloeschkammern |
FR2558986B1 (fr) * | 1984-01-30 | 1986-11-21 | Merlin Gerin | Dispositif de commande d'un disjoncteur electrique |
DE3711138A1 (de) * | 1987-04-02 | 1988-10-13 | Licentia Gmbh | Antrieb zum fernbetaetigten ein- und ausschalten eines selbstschalters |
-
1998
- 1998-07-09 DE DE19832592A patent/DE19832592A1/de not_active Withdrawn
-
1999
- 1999-06-30 DE DE59903604T patent/DE59903604D1/de not_active Expired - Fee Related
- 1999-06-30 EP EP99944263A patent/EP1145263B1/de not_active Expired - Lifetime
- 1999-06-30 US US09/743,350 patent/US6380830B1/en not_active Expired - Fee Related
- 1999-06-30 WO PCT/DE1999/002030 patent/WO2000003405A2/de active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901821A (en) * | 1988-10-13 | 1990-02-20 | Siemens Energy & Automation, Inc. | Motor operator for a stored energy operating mechanism |
US5025171A (en) * | 1989-09-22 | 1991-06-18 | S&C Electric Company | Method and arrangement for providing power operation of switchgear apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1145263A2 (de) | 2001-10-17 |
DE59903604D1 (de) | 2003-01-09 |
US6380830B1 (en) | 2002-04-30 |
WO2000003405A3 (de) | 2002-09-12 |
DE19832592A1 (de) | 2000-01-13 |
EP1145263B1 (de) | 2002-11-27 |
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