EP2220748A2 - Procédé de production d'une unité de carcasse de stator - Google Patents

Procédé de production d'une unité de carcasse de stator

Info

Publication number
EP2220748A2
EP2220748A2 EP08862858A EP08862858A EP2220748A2 EP 2220748 A2 EP2220748 A2 EP 2220748A2 EP 08862858 A EP08862858 A EP 08862858A EP 08862858 A EP08862858 A EP 08862858A EP 2220748 A2 EP2220748 A2 EP 2220748A2
Authority
EP
European Patent Office
Prior art keywords
stator
housing
expansion temperature
housing unit
reaching
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.)
Withdrawn
Application number
EP08862858A
Other languages
German (de)
English (en)
Inventor
Jörg NELGES
Thomas Gilke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Technology AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Publication of EP2220748A2 publication Critical patent/EP2220748A2/fr
Withdrawn legal-status Critical Current

Links

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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
    • C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
    • C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • H02K15/14—Casings; Enclosures; Supports
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/28—Nitrogen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • 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
    • H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
    • 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

Definitions

  • the invention relates to methods for manufacturing a stator-housing unit for an electric machine, wherein a stator is connected to a housing, a stator housing unit and a paint material.
  • stator usually contains layered laminations with grooves for winding conductors, which are introduced during the manufacturing process of the electric machine.
  • a stator is usually connected during the manufacturing process of an electric machine with a housing surrounding him or added to this.
  • a housing is used for example for mechanical protection of the manufactured electric machine but also for their better handling. It is for example possible to provide fasteners on the housing, which facilitate the subsequent assembly of the electrical machine.
  • the disadvantage is that even after the joining of stator and housing due to the manufacturing technology necessary clearance fits between the stator and the housing are present, which adversely affect the heat transfer between the winding conductors and outer interface.
  • the length of such a necessary manufacturing distance is typically in the range of 0.1 mm to 2 mm, the power of corresponding electrical machines being between a few kW and several 100 MW.
  • the method for producing a stator housing unit for an electrical machine is characterized in that before joining the stator and housing at least a partial surface of the common contact surfaces is coated with a paint material, which is an irreversibly expanding upon first reaching a certain expansion temperature addition of material and that the connected stator-housing unit is heated to at least the expansion temperature.
  • a paint material based on phenolic resin is used with the material additive mentioned above and with a further proportion of boron nitride.
  • boron nitride advantageously increases the thermal conductivity of a phenolic resin-based paint material.
  • the thermal conductivity between stator and housing can be further increased.
  • the stator is connected to the housing only after a predetermined minimum time after coating of the stator and / or housing.
  • the applied lacquer layer dries before connecting in an advantageous manner and the connection process can be further simplified.
  • stator housing unit for an electrical machine which is characterized in that on at least a partial surface of the contact surface between the stator and the housing, a paint material is present, which is irreversibly expanded after first reaching a certain expansion temperature addition of material having.
  • the object according to the invention is furthermore achieved by a paint material based on phenol resin with 5% to 10% by weight of a material additive which irreversibly expands when an expansion temperature is reached for the first time and 10% to 20% boron nitride.
  • the details of the proportions by weight relate in each case to the liquid state of the paint material.
  • boron nitride for example, the products of the company Boron Nitride Momentive Performance Materials type BN5 or CF100 have proven.
  • a suitable phenolic resin is, for example, the product LG 9968 from Hexion / Bakelite.
  • FIG. 1 shows a first overview image with a separate coated first stator and a first housing
  • FIG. 2 shows a second overview image with a connected stator-housing unit
  • FIG. 1 shows a first overview image 10 of a separate first stator 12 and of a first housing 14 of an electrical machine. Both the stator 12 and the housing 14 are indicated in an idealized form as rotationally symmetrical about an axis of rotation 30. According to the invention, electric machines in the power range of a few kW up to several 100 MW are conceivable.
  • the stator 12 has an outer diameter 13, which is smaller than the inner diameter 15 of the housing, wherein the design match of inner diameter 15 to outer diameter 13, for example in the range of 0.2mm to 4mm, resulting in distances between stator and housing of 0.1 mm to 2mm.
  • the stator 12 is coated on its outer circumferential surface with a lacquer layer 16 which has a thickness 17 and has not yet been heated to an expansion temperature and has a thickness of, for example, 0.05 to 1 mm. Due to any unevenness of the outer surface of the stator 12 and tolerances in the coating process, the thickness 17 of the lacquer layer 16 may vary.
  • stator 12 and housing 14 Before connecting stator 12 and housing 14, first the later common contact area of stator 12 and housing 14 is to be completely or partially coated with a paint material according to the invention.
  • the contact surface is formed by the outer circumferential surface of the stator 12 and the inner circumferential surface of the housing 14. Accordingly, at least one of the two mentioned surfaces forming the contact surface is to be painted in the area of the later contact surface at which the thermal conductivity between the stator 12 and the housing 14 is to be improved.
  • a coated stator 12 is shown while the housing 14 is uncoated.
  • the average thickness of the paint layer is in the range of 50 .mu.m to 600 .mu.m in the air-dried state, ie after the lapse of a certain time interval after the coating process.
  • the thickness of the lacquer layer in the so-called wet state is higher, for example by a factor of 1, 5 to 4.
  • a suitable time interval is in the range of 10 minutes to 2 hours, depending on the layer thickness, ambient temperature conditions, composition of the paint material and other influencing factors.
  • Stator 12 and housing 14 are subsequently pushed into each other, which is indicated in the figure by a directional arrow 18.
  • FIG. 2 shows a second overview image of a stator housing unit 20 with a second stator 22 and a second housing 24.
  • the space between the second stator 22 and the second housing 24 is completely filled with a lacquer layer which, after being connected, already heated to expansion temperature has been. During the heating process, a volume expansion of the lacquer layer took place, which filled up any air volumes. Due to the complete filling of the intermediate space, an additional mutual mechanical fixation of stator and housing takes place in an advantageous manner.
  • Particularly favorable properties are achieved, in particular, by using a coating material with 5% to 10% by weight of a material additive that irreversibly expands when an expansion temperature is reached for the first time, 10% to 20% of boron nitride and phenolic resin.
  • a coating material with 5% to 10% by weight of a material additive that irreversibly expands when an expansion temperature is reached for the first time 10% to 20% of boron nitride and phenolic resin.
  • the boron nitride improves the thermal conductivity in this case.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé de production d'une unité de carcasse de stator (20) pour une machine électrique, selon lequel un stator (12, 22) est assemblé avec une carcasse (14, 24). Le procédé est caractérisé en ce qu'avant l'assemblage, au moins une surface partielle des surfaces de contact communes est enduite d'un matériau laqué qui présente, lorsqu'on atteint pour la première fois une température d'expansion déterminée, un complément de matière expansée irréversible. L'invention concerne en outre une unité de carcasse de stator (20) et un matériau laqué renfermant une fraction pondérale de 5% à 10% d'un complément de matière expansée irréversible lorsqu'on atteint pour la première fois une température d'expansion, et de 10% à 20% de nitrure de bore et de résine phénolique.
EP08862858A 2007-12-15 2008-12-05 Procédé de production d'une unité de carcasse de stator Withdrawn EP2220748A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007060654A DE102007060654A1 (de) 2007-12-15 2007-12-15 Verfahren zum Herstellen einer Stator-Gehäuse-Einheit
PCT/EP2008/010293 WO2009077088A2 (fr) 2007-12-15 2008-12-05 Procédé de production d'une unité de carcasse de stator

Publications (1)

Publication Number Publication Date
EP2220748A2 true EP2220748A2 (fr) 2010-08-25

Family

ID=40419132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08862858A Withdrawn EP2220748A2 (fr) 2007-12-15 2008-12-05 Procédé de production d'une unité de carcasse de stator

Country Status (5)

Country Link
US (1) US20100277031A1 (fr)
EP (1) EP2220748A2 (fr)
CN (1) CN101897103A (fr)
DE (1) DE102007060654A1 (fr)
WO (1) WO2009077088A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013006623A1 (de) 2013-04-18 2014-10-23 Volkswagen Aktiengesellschaft Kühlmantel für eine elektrische Maschine und Verfahren zur Herstellung einer elektrischen Maschine mit einem Kühlmantel
CN104976124B (zh) * 2015-07-15 2017-03-22 广东美芝制冷设备有限公司 旋转式压缩机及含有该旋转式压缩机的制冷设备
CN110475977B (zh) * 2017-03-24 2022-04-26 江森自控科技公司 磁性轴承马达压缩机
EP3425771A1 (fr) 2017-07-06 2019-01-09 Siemens Aktiengesellschaft Unité de boîtier/stator pour une machine électrique
JP6691161B2 (ja) * 2018-03-28 2020-04-28 ファナック株式会社 回転電機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037572B (de) * 1955-10-21 1958-08-28 Licentia Gmbh Elektrische Maschine, bei der die Blechpakete mit den sie tragenden Teilen ueber einKlebemittel vereinigt sind
DE1488575A1 (de) * 1965-09-03 1969-08-07 Licentia Gmbh Elektrische Maschine mit direkt in einen Gehaeusemantel eingesetztem Staenderblechpaket
US6207730B1 (en) * 1999-03-18 2001-03-27 Daubert Chemical Company, Inc. Epoxy and microsphere adhesive composition
JP2005154672A (ja) * 2003-11-28 2005-06-16 Three M Innovative Properties Co 仮設用マーキング材及び路面標示体
JP2006109600A (ja) * 2004-10-04 2006-04-20 Toshiba Corp 回転電機の固定子コイルおよびその固定方法
JP2007089295A (ja) * 2005-09-21 2007-04-05 Toyota Motor Corp 回転電機およびレゾルバ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009077088A2 *

Also Published As

Publication number Publication date
CN101897103A (zh) 2010-11-24
DE102007060654A1 (de) 2009-06-18
US20100277031A1 (en) 2010-11-04
WO2009077088A3 (fr) 2009-09-03
WO2009077088A2 (fr) 2009-06-25

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