Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/12—Stationary parts of the magnetic circuit
  • H02K1/14—Stator cores with salient poles
  • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
  • H02K1/148—Sectional cores
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/22—Rotating parts of the magnetic circuit
  • H02K1/26—Rotor cores with slots for windings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/22—Rotating parts of the magnetic circuit
  • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
  • H02K1/243—Rotor cores with salient poles ; Variable reluctance rotors of the claw-pole type
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K1/00—Details of the magnetic circuit
  • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
  • H02K1/22—Rotating parts of the magnetic circuit
  • H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
  • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
  • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49009—Dynamoelectric machine
  • Y10T29/49012—Rotor

Definitions

• the present invention relates to an electric machine, more particularly to a synchronous generator pole stack, a synchronous generator rotor having a plurality of pole packs, and a method of manufacturing a synchronous generator pole stack.
• Electrical machines eg. As electrical generators, in particular synchronous generators ren, have a generator rotor with a plurality of Polvolen on. These Polwee usually consist of a variety of stamped Polvolblechen. The Polvolbleche are then stacked and can for example be welded together.
• GB 2 389 241 shows a stator of an electric motor with a plurality of pole heads.
• the pole heads have a plurality of Polvolblechen.
• EP 1 275 192 B1 shows a pole package and a method for producing a pole piece.
• the Pol di consists of a plurality of punched and each mutually shifted Polkmün the Polvolbleche.
• Each Polvolblech has a main body (substantially rectangular) and a pole head, wherein the pole head has a curvature and wherein the pole head protrudes laterally beyond the base body.
• the punching device has a stationary tool, which serves to punch out the free ends of the pole head.
• a second tool is movable in a straight line transversely to the conveying direction of the sheet relative to the first tool and serves to punch out all other contours of the Polvolbleches including the radius of the pole head and the side surfaces of the body.
• the Polvolblech are produced in a three-stage process. First, a sheet is pushed into the first fixed tool of a punching device, where a first portion of the Polvolbleches is punched. Subsequently, a second section displaced relative to the first section is punched out with the second tool. Thereafter, the tool is moved transversely to the conveying direction of the sheet and the next Polvolblech can be stamped, with a base body is displaced relative to the Polvolblech.
• the stamped Politherbleche can then be stacked and connected to each other for example by a weld.
• the weld will then be provided in the region of the main body, so that the main body of the Politherbleche be secured together. This has due to the gradually shifted punching of the body with the result that the composite Politherbleche are formed arrow-shaped in plan view.
• a synchronous generator Polmp is provided with a plurality of mutually offset Polvolsegmenten, each having a plurality of identical Polvolblechen.
• Each pole-packet plate has a pole shank with a first center line and a pole head with a second center line.
• the first and second centerlines or the spacing between the first and second centerlines may be different in adjacent pole segments.
• the number of different Polvolbleche is less than or equal to the number of mutually offset Polvolsegmente.
• the Polvolbieche in adjacent Polvolsegmenten each have a different angle or a distance between the first and second center line.
• the arrangement of the Polvolseg- elements in the plan view is designed arrow-shaped and mirror-symmetrical.
• the invention also relates to a method for the production of Polneten, each having a plurality of Polvolblechen.
• the Polvolbleche each have a Polschaft and a pole head.
• a plurality of first Polvolblechen is punched out by punching the first portion (pole head) of the Polvolbleche means of a first solid tool.
• the second sections (Polschaft) of the Polvolbleche be punched by a second tool in a first pivot angle.
• the second tool is pivotable about an angle relative to the first tool.
• the second tool is pivoted relative to the first tool and a second number of Polvolblechen is punched out, wherein the second tool is in a second pivot angle.
• the at least first and second Polvolbleche are each assembled into at least a first and second Polvolvolegment.
• the at least first and second pole-packet segments are mounted offset relative to each other (aligned with the pole shaft).
• the invention relates to the idea, instead of putting a plurality of only gradually shifted individual Polvolblechen together to form a Polp, several Polvolsegmente graded or offset to provide each other.
• the Polpsegmente consist of a plurality of identical Polvolblechen.
• the individual Polvolbleche but the Polvolsegmente are arranged offset from one another.
• This has the advantage that the number of pole-plate sheet types to be produced can be considerably reduced, since only different types of pole-pack sheet metal must be produced in the maximum number of pole piece segments.
• the Poldbleche are designed such that they can be (re) used by turning by 180 ° in another of the Polvolsegmente.
• the actual number of pole package sheet types to be punched can be further reduced.
• only three differently punched Polvolblechtypen be needed to map the entire Polvol.
• the Three Polvolblechtypen can be used for the first three segments and each rotated by 180 ° three Polvolblechtypen can then be used for the fourth, fifth and sixth segments.
• the six pole-packet segments may be used for one branch of the pole-packet and the other branch of the pole-packet may be based on a corresponding mirrored order of the pole-packet segments of the first arm.
• the punching device is pivoted in several stages or at several angles.
• the head contour of the pole heads optionally has a first radius and the opposite end of the pole pack optionally has a second radius, the second radius being smaller than the first radius.
• a stationary tool punches the contours of the pole head and a relatively movable (i.e., pivotable) second tool punches the other side surfaces of the pole shank.
• the second movable tool is pivoted or pivoted relative to the first tool by a predetermined angle.
• the centerline of the pole shaft does not have to coincide with the centerline of the pole head. Rather, an angle between these two center lines is present, which is achieved by the pivoting of the second tool relative to the first.
• the pole packets are used in a synchronous generator rotor or in a ring generator rotor. Both the synchronous generator and the ring generator are a slowly rotating synchronous generator.
• the diameter of the synchronous generator rotor or the ring generator rotor typically has several meters.
• the synchronous generator or the ring generator has a power of at least 100 kW, preferably at least 1 MW and may well be 3 MW or up to 10 MW.
• FIG. 1 shows a schematic sectional view of a synchronous generator rotor Polwees according to a first embodiment of the invention.
• the pole pack 100 according to the first embodiment has a number of pole segments 101-106.
• Each pole segment 101 - 106 has a plurality of identical Polvolblechen.
• Each Polvolblech has a pole head 120 and a Polschaft 110.
• the Polvolbleche are preferably each made in one piece and can be punched in particular.
• the Polschaft 110 is configured substantially rectangular and may optionally have two lugs 1 16 in the lower region.
• a plurality of welds 111, 112, 113 and 114 may be provided.
• the first end 117 of the pole shank 110 may have a radius of R1.
• the pole head 120 has on each side a portion 123 which projects beyond the pole shaft 110.
• the top 121 of the pole head 120 has a radius of R2.
• Each of the pole packet segments 101 - 106 has a plurality of identical pole packet plates.
• the Polvolbleche within a Polvolsegmentes are not offset, but arranged one behind the other and aligned with each other on Polschaft. Only the pole heads of the Polvolsegmente 101 - 106 are arranged offset from one another.
• Each of the Poiköpfe is preferably the same width and each of the Pol2020fte is also preferably the same width. But it is also possible that the pole heads and / or the Pol2020fte have different widths.
• the different Poltransblechtypen differ from each other only by the relative position of the Polschaftes to the outer portions of the pole head.
• Fig. 2 shows a schematic plan view of a Polever according to the first embodiment.
• the pole packet in particular has a plurality of pole packet segments 101 - 106.
• the pole-packet segments 101-106 in the upper arm are mirror-symmetrical to the pole-pieces 101-106 in the lower arm.
• Each of the Polvolsegmente 101 - 106 consists of a plurality of identical Polvolblechen which are welded or connected together.
• the pole pack can be constructed with, for example, only six different pole package sheet types (corresponding to the pole shoe segments 101 - 106).
• Fig. 3 shows a further side view of the Polun according to the first embodiment example. Also in Fig. 3, the Polversegmente 101 - 106 are shown. The Polvolsegmente can be secured for example by means of the holes 130.
• FIG. 4 shows a sectional view through the pole stack of FIG. 2 along the section BB.
• the center line 128 of the pole head 120 deviates from the center line 118 of the pole shank by an angle W2 or a distance W2.
• Fig. 5 shows a cross section of the Polvoles of Fig. 2 along the section CC.
• a Polvolblech the Polvolsegmentes 103 is shown.
• the position of the center line 128 of the pole head deviates from the position of the center line 118 of the pole shank by an angle W3.
• the angle W3 is different from the angle W2.
• the different pole packet segments shown in FIG. 2 each have identical pole packet plates.
• the pole packet according to FIG. 2 can be constructed by 2 x 6 Polvolsegmente. Thus, a maximum of six different Polvolblechtypen needed.
• the pole packet according to FIG. 2 can also be constructed with fewer than six different pole package sheet types.
• the pole pack of FIG. 2 may be constructed with three different pole package sheet types, each of the pole package sheet types having a pole head and a pole shank, the pole package sheet types differing only in the relative position of the pole package shank with respect to the pole package header.
• the pole packet segment 106 can be designed offset by 180 ° to the pole packet segment 101.
• the pole packet segment 105 is arranged at 180 ° to the pole packet segment 102.
• the Polvolsegment 104 is arranged offset by 180 ° to the Polvolsegment 103.
• the pole packet according to a second embodiment which can be based on the first embodiment, can be manufactured with only three different pole packet plates.
• a movable punching tool is pivoted about a pivot angle, for example, before the Polschuhschaft can be punched out.
• a pivot angle for example, before the Polschuhschaft can be punched out.
• six pole packet segments shown in FIG. 2 only three pole package sheet types are required. These Polvolbleche be enabled by three different pivot angle of the second punch, each angle can take a positive value, so that a total of six different Polvolbleche can be made.
• the invention also relates to a punching device with a first fixed tool to which a sheet is fed in the conveying direction.
• the first tool punches a first section, such as sections 123.
• the punching device has a second, relative to the first tool relatively displaceable or pivotable tool, which is used to punch out the Polschaft and / or the Polkopfabêt of Polschuhabiteses.
• the pole head ie the sections 121, 122 and 123
• the second tool is given away relative to the first tool, and in a next punching step the pole shank is punched out.
• the pole pack according to the first or second embodiment can be manufactured by three different punching methods. In the first punching method, first the pole head is at least partially punched out. Subsequently, a second punching tool is displaced relative to the first punching tool and the pole shaft 110 is punched out. Alternatively to a displacement of the second tool relative to the first, a pivoting of the second tool relative to the first tool can also take place.
• the respective Polvolblechtypen can be punched separately, ie in its own punching machine.
• a displacement or pivoting of a second punching tool is not necessary, but the Polvolblech can be punched out in a single punching step.
• the pole head 121-123 can be punched out in a single step, so that the sections 121-123 can be punched out continuously and in one step.
• a tangential transition from section 121 to section 122 is possible.
• the pole packets according to the invention are each provided with a winding and the winding is supplied with electrical excitation, so that the pole packet and the corresponding winding together with an excitation current can generate a magnetic excitation, which can cause a magnetic pole.
• One pole of an electrical machine is thus formed from a pole packet, a winding and an excitation current.
• the Polwovene according to the invention can be used in a synchronous generator.
• a Polvolsegment for a permanently excited synchronous generator can be configured, for example, rectangular in cross section, ie the Polvolsegmente can only have the shape of the Polschaftes according to the first and second embodiments.
• a Polp for a permanent magnet synchronous generator a plurality of Polvolsegmenten offset from each other.
• Each Polpsegment can be formed by a permanent magnet excited here.
• a Polp can be formed from a plurality of mutually offset permanent magnets.
• the Polvolbleche can be made by cutting.
• the cutting may include punching, laser cutting, water jet cutting, cutting or casting.
• the pole pack according to the invention may be provided on a rotor of a synchronous generator. This is in particular an externally excited synchronous generator. This is achieved in particular by achieving a magnetic pole by providing an electrical winding around a pole packet, which is supplied with an exciting current.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Manufacture Of Motors, Generators (AREA)
• Iron Core Of Rotating Electric Machines (AREA)
• Punching Or Piercing (AREA)
• Magnetic Treatment Devices (AREA)
• Motor Or Generator Frames (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=46208088

Family Applications (1)

Country Status (16)

Families Citing this family (5)

Citations (2)

Family Cites Families (15)

• 2011
  • 2011-06-08 DE DE102011077217A patent/DE102011077217A1/de not_active Withdrawn
• 2012
  • 2012-06-05 US US14/124,228 patent/US20140132108A1/en not_active Abandoned
  • 2012-06-05 AU AU2012266435A patent/AU2012266435B2/en not_active Ceased
  • 2012-06-05 RU RU2013157205/07A patent/RU2557081C1/ru not_active IP Right Cessation
  • 2012-06-05 MX MX2013013265A patent/MX2013013265A/es active IP Right Grant
  • 2012-06-05 KR KR1020137033261A patent/KR20140022914A/ko not_active Application Discontinuation
  • 2012-06-05 CN CN201280028242.0A patent/CN103620914A/zh active Pending
  • 2012-06-05 WO PCT/EP2012/060595 patent/WO2012168238A2/de active Application Filing
  • 2012-06-05 CA CA2837026A patent/CA2837026A1/en not_active Abandoned
  • 2012-06-05 BR BR112013030847A patent/BR112013030847A2/pt not_active Application Discontinuation
  • 2012-06-05 JP JP2014514037A patent/JP2014516241A/ja active Pending
  • 2012-06-05 EP EP12725467.0A patent/EP2719060A2/de not_active Withdrawn
  • 2012-06-08 TW TW101120808A patent/TWI472128B/zh not_active IP Right Cessation
  • 2012-06-08 AR ARP120102038A patent/AR086874A1/es active IP Right Grant
• 2013
  • 2013-11-21 ZA ZA2013/08721A patent/ZA201308721B/en unknown
  • 2013-11-29 CL CL2013003443A patent/CL2013003443A1/es unknown

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