WO2018059921A1 - Moteur pour un entraînement d'interrupteur de puissance ainsi que son utilisation - Google Patents

Moteur pour un entraînement d'interrupteur de puissance ainsi que son utilisation Download PDF

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Publication number
WO2018059921A1
WO2018059921A1 PCT/EP2017/072735 EP2017072735W WO2018059921A1 WO 2018059921 A1 WO2018059921 A1 WO 2018059921A1 EP 2017072735 W EP2017072735 W EP 2017072735W WO 2018059921 A1 WO2018059921 A1 WO 2018059921A1
Authority
WO
WIPO (PCT)
Prior art keywords
rectifier
motor
bearing plate
circuit breaker
contacts
Prior art date
Application number
PCT/EP2017/072735
Other languages
German (de)
English (en)
Inventor
Thomas Hilker
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2018059921A1 publication Critical patent/WO2018059921A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05—Rectifiers associated with casings, enclosures or brackets
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/36—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor

Definitions

  • the invention relates to a motor for a circuit breaker drive and its use, wherein the motor comprises a rotor which is movably supported via a first and a second end shield.
  • a sheet package comprising the rotor and at least partially spatially disposed between the ers ⁇ th and the second bearing plate.
  • the motor also includes a rectifier.
  • Circuit breakers in particular high and medium voltage circuit breakers, have at least one drive for providing a switching movement.
  • Drives are z.
  • the stored energy, which is consumed during switching, must be returned to the drive after switching the circuit breaker.
  • electric motors are used.
  • a motor can provide a rotational movement, which is converted via a transmission and biases an energy storage spring or a plurality of energy storage springs of a spring-loaded drive.
  • a motor may also be used to drive ei ⁇ ne pump which increases a gas pressure in a gas pressure accumulator.
  • Rectifiers are usually from the electric motor spatially separated, electrically connected to the motor Baugrup ⁇ pen, or are as spatially separated from the engine modules.
  • As a memory spring with trigger, in particular in conjunction with a transmission, and the rectifier are arranged as separate Baugrup ⁇ pen in a housing, in particular a drive cabinet.
  • a spatially separate from the motor Gleichrichtermo ⁇ dul may comprise a base carrier, for.
  • cooling devices in particular cooling plates include.
  • the housing of the rectifier modules and cooling devices generate additional costs, space consumption z. As in the drive cabinet and / or in a cabinet, and additional effort during installation.
  • the object of the present invention is the avoidance or reduction of the problems described above.
  • it is an object to provide a motor for a drive-breaker, which saves cost, reduces space and material consumption, and the effort to install ver ⁇ Ringert.
  • An inventive motor for a circuit breaker drive comprises a rotor which is movably supported via a first and a second end shield.
  • a sheet package comprising the rotor at least partially spatially and Zvi ⁇ rule placed the first and second bearing plate.
  • the motor comprises a rectifier, which is fastened directly to a bearing plate. Due to the direct attachment of the rectifier to the bearing ⁇ shield, an additional outer housing and / or an additional holding device for the rectifier can be saved and cooling of the rectifier can be done on the La ⁇ shield. Cooling devices for the rectifier such. As sheets or vents, which are not included in the engine, can thus also be saved. This saves costs, reduces the space and material consumption, and reduces the effort during assembly.
  • the rotor may comprise a drive shaft and a brush contact, wherein the brush contact may be associated with the second end shield and a free end of the drive shaft, which is designed to transmit the drive movement, the first end shield may be assigned.
  • the rectifier can be attached directly to the second bearing plate, in particular ⁇ special on one side of the second bearing plate, which is opposite to the side with the rotor mounted with brush contact.
  • the end shields can be the drive shaft, which in the Motor is part of the rotor, store and the drive ⁇ wave, the mechanical energy generated by the engine can be transferred to elements of a kinematic chain of a circuit breaker and / or mechanical storage elements of the circuit breaker drive, such.
  • the drive shaft can be guided out of the motor on one side of the motor, mounted in a first end shield on this side, the elements of the kinematic chain or other force-transmitting elements on this side connect to the drive shaft or at this kraftübertra ⁇ are attached.
  • the rectifier On the opposite side of the Mo ⁇ tors the drive shaft in the engine by a second bearing ⁇ shield, that is, to be stored on the inside without protruding from the engine.
  • the rectifier On the outside of the motor or the second bearing plate, the rectifier may be attached, on the side of the bearing plate, which is opposite to the side of the bearing of the drive shaft. The fact that the rectifier is not attached to the side of the drive shaft or on a rearwardly projecting plate, a very compact, space-saving construction is generated.
  • the rectifier may be externally mounted on the underside of the motor.
  • the drive housing laterally next to the engine directly other drive assemblies or elements such.
  • B. gear or controls are arranged without them and the rectifier interfere with each other and / or physically impede.
  • a very compact design of the drive is made possible, especially since the direct attachment of the rectifier on the lower bearing plate space is saved over ei ⁇ ner attachment to additional holding devices, or in other assemblies or housings.
  • the end shield to which the rectifier is directly attached, can be cooling devices for cooling the rectifier and motor, in particular cooling fins or cooling webs, which are in particular monolithically covered by the bearing plate.
  • An improved cooling of the rectifying ⁇ ters is achieved. Since engines z. B. when tensioning a spring are only briefly in operation, they can be operated in overload to use cost-effective engines can. In the process, a high power is briefly consumed and high temperatures are generated, in particular at the rectifier. Additional cooling devices may be suitable for removing the waste heat from the rectifier via the end shield. So z. B. be formed in the bearing plate cooling fins, insbesonde ⁇ re during casting of the casting. The ribs can z. B. for
  • the rectifier may comprise electrical input contacts and electrical contacts of the rectifier output, WO at the contacts of the rectifier output via electrical contact elements with windings of the motor electrically verbun ⁇ may be the, in particular electrical lines as contact elements.
  • plugs and sockets which costs and space can be saved.
  • the motor Via the electrical input contacts, the motor can be directly connected to a supply voltage via the rectifier, eg. B. via lines with plug contacts.
  • Other additional contact systems for on ⁇ circuit motor as contact strips or intermediate contacts can be saved, whereby space and cost can be saved.
  • the rectifier can be mechanically fastened directly to the bearing plate via fastening elements, in particular directly on Bearing shield screwed.
  • a screw connection is simple and inexpensive, and results in a high mechanical stability.
  • the rectifier may also be glued, soldered and / or welded.
  • the rectifier and the end shield, to which the rectifier is directly attached can be in good thermal contact.
  • a good thermal contact can be achieved when using good conductive materials.
  • a thermal compound and / or a heat conducting foil can be arranged in order to achieve a good heat conduction from the rectifier to the end shield, which serves as a cooling device for the rectifier.
  • At least one stop element can be arranged, in particular monolithically covered by the end plate, wel ⁇ ches is in mechanical contact with the rectifier, to a rotation and / or a change in the position of the rectifier to the bearing plate to prevent.
  • an edge in the form of a bulge of the bearing plate can serve as a stop edge for an edge of the rectifier.
  • the stop element can also be formed as a recess with a shape of the rectifier in the bearing plate.
  • An increase or depression can z. B. in the manufacture of the bearing plate, z. B. by casting, in one piece, ie monolithically generated with the bearing plate.
  • the motor may be a DC motor, in particular for tensioning a spring and / or for generating kinetic energy for a gas storage.
  • DC motor can in a variety of be ⁇ rich secure generation of kinetic energy made ⁇ light.
  • DC and AC voltages can be used when using a rectifier, depending on the type of voltage available at the place of use. Different voltage levels and powers can be used flexibly and different amounts of motor energy can be generated as needed.
  • Electrical input contacts of the rectifier can be designed as terminal contacts, in particular for the direct connection of an AC voltage.
  • Clamping contacts provide a simple, safe, inexpensive and space-saving contact, which reliably z. B. persists even under mechanical stress.
  • a simple, fast and cost-effective contacting of the motor or rectifier is made possible via terminal contacts.
  • the bearing plate may be made of aluminum, cast iron and / or steel and / or the bearing plate may comprise as material aluminum, cast iron and / or steel, in particular with good
  • the rectifier may be configured to rectify 110 V and / or 220 V AC voltage. These voltages are common in the network in various countries and can allow easy connection of the motor with rectifier to the grid.
  • a method according to the invention for using the motor described above comprises the motor in a drive a high-voltage circuit breaker and / or a medium-voltage circuit breaker, in particular in a spring ⁇ memory drive and / or gas storage drive is used.
  • the motor may alternatively or additionally be used directly in a high voltage circuit breaker and / or in a medium voltage circuit breaker, e.g. B. torecizu ⁇ provide the kinetic energy for a switching directly, especially without caching the kinetic energy .
  • a drive with the motor according to the invention can also be integrated in a high-voltage circuit breaker and / or in a medium-voltage circuit breaker or be included in the circuit breaker.
  • Fig. 1 shows a schematic side view of a motor 1 for a circuit breaker drive according to the prior art, with a rectifier 10, which is mounted on a plate spaced from the engine 1 to the engine 1, and
  • Fig. 2 shows schematically in side view an inventive ⁇ SEN engine 1 for a circuit breaker drive with a rectifier 10, which directly to the engine 1, that is fixed to an end plate 4 of the motor 1, and Fig. 3 shows the motor 1 of Figure 2 in plan view of a side to which the rectifier 10 is attached.
  • Fig. 1 is shown schematically in side view, a motor 1 with a spaced-apart rectifier 10 according to the prior art for a circuit breaker drive.
  • the rectifier 10 is fixed to the engine 1 at a distance from the engine via a plate 1.
  • the motor 1 is formed without an external housing.
  • the housing is formed by a first and a two ⁇ th bearing layer 3, 4 and by a arranged between the bearing plates 3, 4 laminated core 5.
  • a rotor with a drive shaft 2 and rotor contacts 8 is disposed, and motor windings 6 are arranged.
  • the bearing ⁇ signs 3, 4 are bridge-shaped, such that the motor 1 has an inwardly and outwardly open shape.
  • a brush element 7 is arranged on a bearing plate 4, opposite and in electrical contact with the rotor contact 8.
  • the motor 1 is designed as a DC motor, wherein windings 6 in the stator and windings in the rotor during operation of the motor 1 are electrically flowed through.
  • the magnetic fields generated by the windings drive the motor 1, that is, put the rotor in rotation.
  • the generated rotational movement can via the drive shaft 2, around which the windings of the rotor are arranged or wound, on elements of the kinematic chain of the circuit breaker, which is not shown in the figure for the sake of simplicity transmitted ⁇ who.
  • the rotational movement can z. B. are used in a spring drive for tensioning the storage spring, in particular converted via a transmission in a translational clamping movement. During switching, the storage spring releases the stored mechanical kinetic energy and transmits it to elements of the kinematic chain, which the Transmit kinetic energy to switch contacts of the circuit breaker.
  • the drive shaft 2 is mounted on a first side 17 by a first end shield 3, in particular via an integrated Ku ⁇ gellager in the bearing plate 3.
  • the drive shaft 2 is centrally through the bearing plate 3 continuously movable angeord ⁇ net.
  • the drive shaft 2 is mounted on a second side by a second bearing plate 4, in particular via an integrated ball bearing in the bearing plate 4.
  • the drive shaft 2 is arranged centrally movable in the bearing plate 4 and ends in the bearing plate 4.
  • brush contacts 7, z. B. formed by Koh ⁇ brushes with pressure springs, arranged.
  • the brush contacts 7 and the rotor contact 8 are in mechanical ⁇ and electrical contact, via which during operation of the motor 1 electrical energy is transmitted in the form of a direct current to the windings of the rotor.
  • the windings of the rotor can via the rotor contact 8 and the brush contacts 7 and z. B. via electrical Lei ⁇ tions with the electrical motor contacts 12, ie the contacts at the output of the rectifier 10, be electrically connected.
  • the windings of the stator can also z.
  • Example via electrical lines with contact pieces, which are not shown in FIG. 1 for the sake of simplicity, with the electrical motor contacts 12, ie, the contacts at the output of the rectifier 10, be electrically connected.
  • An AC voltage in particular 110 V or 220 V AC, is connected to the electrical input contacts 11 of the rectifier 10 in FIG. 1
  • the rectifier rectifies the AC voltage, ie the rectifier 10 converts the AC voltage in DC voltage, which in turn drives the motor 1.
  • the rectifier 10 is attached to a rectifier holder 9, z. B. via a fastener 13, insbesonde ⁇ re screw with nut.
  • the rectifier 10 may also be glued, soldered, and / or welded, or be attached via a screw in the thread of a threaded bore in Befest Trentsele ⁇ ment 13 to the fastener 13.
  • the fastening element 9 is z. B. designed as a bent sheet metal and fixed to the engine 1, in particular on the second bearing plate 4 of the engine 1, z. B. bolted, welded, glued or soldered.
  • the rectifier 10 is spaced by the Befest Trentsele ⁇ element 9 to the motor 1, that is arranged to the second bearing plate 4. The distance allows air cooling of the
  • Rectifier 10 and a cooling via the Befest onlysele ⁇ ment 9.
  • Fig. 2 is a schematic side view of a erfindungsge ⁇ mäßer engine 1 for a circuit breaker drive Darge ⁇ presents, and in Fig. 3 is a plan view of the engine 1 of FIG.
  • the rectifier 10 is, in contrast to the motor 1 according to the prior art of Fig. 1, in Figs. 2 and 3 directly to the engine 1, that is, attached to a bearing plate 4 of the engine 1.
  • a sheet 9, as it is in 1 is in the inventive engine 1 of Fig. 2 and 3, which is otherwise constructed analogously to the engine 1 of FIG. 1, saved.
  • the rectifier 10 in Ausure ⁇ tion of Fig. 2 and 3 is cuboid, with a through hole in the middle for z. B. a screw as a fastener 13.
  • the rectifier 10 is flush on the flat outside of the second bearing plate 4 of the engine 1, wherein the flat outside is the opposite side of the bearing plate 4, which is opposite to the side on which the rotor is mounted.
  • the rotor is mounted on the inside and the rectifier 10 is mounted on the outside.
  • a threaded bore is formed, and the rectifier 10 is connected via a fastening element 13, for. B. a screw in connection with the threaded hole, fixed to the bearing plate 4 spatially, ie directly attached.
  • a thermal paste and / or a heat conducting foil between the bearing plate 4 and the rectifier 10 may be arranged.
  • the flat outer surfaces of the bearing plates 3, 4 are arranged perpendicular to the plane of the drawing.
  • a flat outer surface of the bearing plate 4 is shown, which lies in the plane of the drawing and represents the surface on which the rectifier 10 is arranged.
  • the surface is oblong formed, with two opposite ⁇ lying parallel straight sides. Two parallel straight sides of the cuboid rectifier 10 are arranged in parallel to the parallel straight sides of the flat outer surface of the bearing plate 4.
  • the stop member 14 prevents rotation of the rectifier 10 relative to the second bearing plate 4 during operation of the engine 1, wherein a rotation without stop element 14 z. B. can be caused by Vib ⁇ rations of the engine 1.
  • the stop element 14 fixes the position of the rectifier 10 relative to the second bearing plate 4.
  • the stop element 14 is in the form of an increase on the flat outer surface of the bearing plate 4, z. B. in the form of a bead or Aus ⁇ recess of the outer surface. It is in one piece together with the bearing plate 4, z. B. by casting in a mold created or formed.
  • electrical contacts 11, 12 are arranged on the rectifier, in particular projecting perpendicularly out of the surface, the surface having contacts arranged thereon
  • the contacts 11, 12 are z. B. in the form of narrow, electrically conductive sheets. Two contacts are electrical input contacts 11 of the
  • An AC voltage can be applied to the electrical input contacts 11, in particular via connecting lines with connectors plugged onto the tab connectors, to operate the motor 1.
  • AC voltage z. B. an alternating voltage of 110 V or 220 V are used, which is rectified by the rectifier 10.
  • the other two contacts are electrical contacts motor 12, that contacts the output of the rectifier 10.
  • Electri ⁇ specific contact elements 16, in particular formed as elekt ⁇ generic lines, are in the embodiment of FIGS. 2 and 3 with windings 6 of the stator and electrically connected to the brush elements 7, whereby the windings of the rotor via the rotor contacts 8 and the windings 6 of the stator are supplied directly via the lines 16 with DC electrical power.
  • a rectified voltage, ie a DC voltage is applied to the electrical motor contacts 12 during operation of the motor 1.
  • the electrical contact elements 16 may be soldered directly to the electrical motor contacts 12, or z. B. be electrically connected via connectors with the electrical motor contacts 12.
  • the electrical contact elements 16 of the motor windings 6, in particular the stator windings, may be part of the windings or may be the winding ends.
  • the direct attachment of the rectifier 10 to the motor 1, in ⁇ particular on the second bearing plate 4, with a good thermal contact between the second bearing plate 4 and the rectifier 10, allows cooling of the rectifier 10 via the bearing plate 4.
  • the bearing plate 4 may cooling fins 15th or other cooling elements comprise, in particular on the inside of the U-shaped end shield 4, to improve the cooling of the motor 1 and in particular the rectifier 10. Alternatively or additionally, cooling fins 15 or other cooling elements on the outside of the U-shaped bearing shield 4 be arranged.
  • the cooling elements can be made of egg ⁇ nem piece with the bearing plate 4, z. B. by casting or by subsequent processing, for. B. by
  • the embodiments described above can be combined nieei ⁇ nander and / or can be combined with the prior art. So different Materi ⁇ alien can be used.
  • the bearing plates can z. B. of cast iron, aluminum and / or steel or include these substances. These materials have a high mechanical property.
  • the rectifier 10 may be attached to the second bearing plate 4 via gluing, soldering or welding.
  • the rectifier 10 may alternatively be attached to the first end shield.
  • the rectifier 10 may also be mounted in the engine 1 on the bearing plate.
  • the rectifier 10 is attached to the outside of the second bearing plate 4.
  • the rectifier 10 may comprise a tens diode, and / or four diodes in Graetz circuit, and / or the rectifier 10 may further electrical components such.
  • B. capacitors and / or Resistances include. These can be z. B. be formed in a semiconductor or applied to a circuit board, ie a PCB, in particular soldered.
  • a housing may be included in the rectifier 10 or the rectifier circuit may be molded in a plastic. Copper and / or aluminum cables with or without insulation can serve as electrical lines, or bar-shaped, rigid elements, for example, can be used.
  • the stop member 14 may be in the form of a bulge, as shown in FIGS. 2 and 3, may be formed, or may, for. B. be formed as a recess in the surface of the second bearing plate 4, which the outer shape and substantially the dimensions of
  • Rectifier 10 and in which the rectifier 10 may be embedded.

Abstract

L'invention concerne un moteur (1) destiné à un entraînement d'un interrupteur de puissance ainsi qu'à son utilisation. Le moteur (1) comporte un rotor qui est logé de manière mobile par le biais d'un premier et d'un second flasque (3, 4). Un noyau feuilleté (5) entoure au moins en partie le rotor dans l'espace et est disposé entre le premier et le second flasque (3, 4). Un redresseur de courant (10) est fixé directement sur un flasque (3, 4).
PCT/EP2017/072735 2016-09-30 2017-09-11 Moteur pour un entraînement d'interrupteur de puissance ainsi que son utilisation WO2018059921A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016218971.9A DE102016218971A1 (de) 2016-09-30 2016-09-30 Motor für einen Leistungsschalter-Antrieb sowie dessen Verwendung
DE102016218971.9 2016-09-30

Publications (1)

Publication Number Publication Date
WO2018059921A1 true WO2018059921A1 (fr) 2018-04-05

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ID=59858723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/072735 WO2018059921A1 (fr) 2016-09-30 2017-09-11 Moteur pour un entraînement d'interrupteur de puissance ainsi que son utilisation

Country Status (2)

Country Link
DE (1) DE102016218971A1 (fr)
WO (1) WO2018059921A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356873A (en) * 1965-11-12 1967-12-05 Baldor Electric Co Dc motor with rectifiers mounted in the end bell
GB2028006A (en) * 1978-07-04 1980-02-27 Sev Marchal Electric motors
US5008574A (en) * 1990-04-04 1991-04-16 The Chamberlain Group Direct current motor assembly with rectifier module
EP2028745A2 (fr) * 2007-08-20 2009-02-25 LS Industrial Systems Co., Ltd Moteur de dispositif de chargement de ressort dans un disjoncteur à air

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735924A1 (de) 1997-08-08 1999-02-11 Siemens Ag Schalterantrieb, insbesondere für Hochspannungs-Leistungsschalter
DE19949914B4 (de) 1999-04-19 2005-09-15 Dietz-Motoren Gmbh & Co. Kg Elektromotoranordnung mit integriertem Steuergerät
DE10133767A1 (de) 2001-07-11 2003-01-30 Temic Auto Electr Motors Gmbh Kommutatormotor mit einem zylinderförmigen Motorgehäuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356873A (en) * 1965-11-12 1967-12-05 Baldor Electric Co Dc motor with rectifiers mounted in the end bell
GB2028006A (en) * 1978-07-04 1980-02-27 Sev Marchal Electric motors
US5008574A (en) * 1990-04-04 1991-04-16 The Chamberlain Group Direct current motor assembly with rectifier module
EP2028745A2 (fr) * 2007-08-20 2009-02-25 LS Industrial Systems Co., Ltd Moteur de dispositif de chargement de ressort dans un disjoncteur à air

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