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WO2014095405A2 - Procédé de fabrication d'un moteur électrique et moteur électrique - Google Patents

Procédé de fabrication d'un moteur électrique et moteur électrique Download PDF

Info

Publication number
WO2014095405A2
WO2014095405A2 PCT/EP2013/075726 EP2013075726W WO2014095405A2 WO 2014095405 A2 WO2014095405 A2 WO 2014095405A2 EP 2013075726 W EP2013075726 W EP 2013075726W WO 2014095405 A2 WO2014095405 A2 WO 2014095405A2
Authority
WO
WIPO (PCT)
Prior art keywords
stator
rotor
coating
electric motor
areas
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.)
Ceased
Application number
PCT/EP2013/075726
Other languages
German (de)
English (en)
Other versions
WO2014095405A3 (fr
Inventor
Jürgen EHSES
Benjamin GEORGE
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of WO2014095405A2 publication Critical patent/WO2014095405A2/fr
Publication of WO2014095405A3 publication Critical patent/WO2014095405A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines

Definitions

  • the invention relates to a method for producing an electric motor, in which at least contact with aggressive media in contact parts are coated with a protective layer.
  • the invention further relates to an electric motor produced by this method with a stator, a shaft, a rotor arranged on the shaft and contacts for connecting the windings.
  • Such electric motors are used in fuel pumps of motor vehicles and are thus known.
  • the electric motor drives an impeller of the fuel pump to deliver fuel from the fuel tank via a flow line to the engine of the motor vehicle.
  • High alcohol fuels are very aggressive, as they attack the metallic components and the plastic-bonded magnet materials of the electric motor.
  • a parylene coating as the protective layer.
  • a polymer layer is applied in vacuo. Such a layer is characterized by the fact that it can also be used to coat intricately shaped contours, since the polymer also deposits in gaps and cracks.
  • the invention is therefore based on the object to provide a method for producing an electric motor, to be protected with little effort against aggressive media with the rotor and stator of the electric motor.
  • the invention is further based on the object to provide an electric motor produced by this method.
  • the object is achieved by providing the rotor and the stator with a parylene coating and then removing the parylene coating from areas of the rotor and the stator which have to be further processed or which, due to their function, must not have any coating.
  • the rotor and the stator are coated, without the areas not to be coated being protected against coating by a cover.
  • the elimination of the covers simplifies the manufacturing process considerably, since not only the covering but also the removal of the covers is associated with effort.
  • the removal of the tight covers machining marks on the rotor, z. B. on the shaft bearing, or on the contacts of the stator leave. These possibly limiting the function of the individual areas machining marks are avoided with the method.
  • the partial removal of the Parylenebetikung is characterized by much less effort and is also suitable to be made automatically.
  • the Parylenebetikung is applied to already coated areas. This has the advantage that the coating can be carried out without restrictions and thus much simpler than if previously coated areas had to be treated separately.
  • Such pre-coated areas are z. For example, contacts previously coated with a nickel-tin-layer system. In addition, contacts represent areas that, due to the subsequent contacting must not be coated with a polymer coating.
  • a further embodiment is that the Parylene ⁇ coating is removed by vacuum Saugstrahlen with a plastic abrasive.
  • a plastic abrasive has the advantage that a Parylenebetikung not only of solid material, eg. As a wave, but also of sensitive material, eg. B. tin-nickel layer system can be removed without damaging this material.
  • the areas from which the parylene coating is to be removed are introduced into a blasting cubicle and moved relative to a fixed blasting medium suction lance. Since only a part of the workpiece is introduced, the blast cabin can be made smaller. Since the areas are moved in any case with respect to the suction lance and the drive for the movement of the areas outside the steel cabin is arranged, the sealing of the areas with the blast cabin is no additional expense, as to move the areas arranged in the blasting cabin holding device from the outside over the Drive is driven and there is already a seal against the blast cabin. By contrast, a fixed suction lance is easier to seal than a movable suction lance relative to the blast cabin.
  • the second object is achieved in that parts of the rotor, the associated shaft and / or the stator free of the
  • Parylene coating are. With the application of the Parylenebe Anlagenung can be difficult on a rotor and / or stator accessible areas are protected in a simple and reliable manner against aggressive media.
  • the subsequent removal of the coating, so that parts of the rotor and / or the stator do not have this coating, has the advantage that these parts can subsequently be processed or that they can perform their function without this function being influenced by the coating.
  • such areas are, for example, contacts which are connected to electrical lines only after the coating and where a polymer coating would adversely affect the contacting. This also applies to the waves / shaft bearing. Also in this area a polymer coating would shorten the bearing life.
  • FIG. 2 shows a part of the stator according to Fig.l
  • FIG. 3 shows a rotor according to FIG. 1 and FIG. 4 shows a contact in a schematic representation.
  • the shaft 3 is mounted in the pump housing 6 and in the connection piece 7.
  • fuel is sucked from a fuel tank via a pump inlet 8 and conveyed through a pump outlet 9 in the pump housing 6, by the electric motor 1 to an outlet 10 in the connection piece 7. From there, the fuel passes via a feed line 11 to the fuel, not shown. engine of the motor vehicle.
  • the connecting piece 7 has a plug 12 for connecting electrical lines for the electric motor 1. From the plug 12 lines not shown extend to the stator second
  • the stator 2 in FIG. 2 consists of a laminated core 13 which has an internal plastic encapsulation 14 and the respective windings 15.
  • the plastic extrusion coating 14 further comprises contact holders 16 into which contacts 17 are inserted.
  • the contacts 17 are according to the motor connection with the
  • the contacts 17 have areas 19 which are provided for contacting with the lines mentioned in FIG.
  • the hatched areas 19 are free from the Parylenebetikung for the contact still to be made, while the remaining parts of the contacts 17 and the stator 2 have the Pary ⁇ lenebe harshung.
  • FIG. 3 shows the rotor 4.
  • the rotor 4 comprises a laminated core 23, which is applied to the shaft 3 belonging to the rotor 4.
  • the laminated core 23 is surrounded by an encapsulation 24 made of a plastic-bonded neodymium magnetic material.
  • a Paryle ⁇ nebe slaughterung 25 applied from 15pm. Since the shaft 3 is mounted with its ends 26, 27 and at the end 27 in addition the impeller 5 is arranged, these areas may not have any coating due to their function. The Parylenebetikung is therefore removed at the ends 26, 27 of the shaft 3 then again by means of vacuum suction.
  • FIGS. 4a, b show a contact 17 in an enlarged view.
  • the contact 17 has a corrosion protection layer system consisting of a first layer of nickel 20 and an overlying layer of tin 21 which have been applied to the contact 17 made of copper.
  • the stator and thus the entire contact 17 have been provided with the parylene coating 22.
  • the paste Rylenebe Anlagenung 22 removed by means of vacuum suction in the region of the contact 17, so that the tin layer 21 according to Figure 4b exposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un moteur électrique selon lequel au moins des pièces en contact avec des fluides agressifs sont revêtues d'une couche de protection. Le rotor et le stator sont pourvus d'un revêtement de parylène. Ensuite, le revêtement de parylène est enlevé de régions du rotor et du stator qui doivent continuer à être traitées ou qui ne peuvent présenter aucun revêtement en raison de leur fonction.
PCT/EP2013/075726 2012-12-21 2013-12-05 Procédé de fabrication d'un moteur électrique et moteur électrique Ceased WO2014095405A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102012224337 2012-12-21
DE102012224337.2 2012-12-21
DE201310213967 DE102013213967A1 (de) 2012-12-21 2013-07-17 Verfahren zur Herstellung eines Elektromotors und Elektromotor
DE102013213967.5 2013-07-17

Publications (2)

Publication Number Publication Date
WO2014095405A2 true WO2014095405A2 (fr) 2014-06-26
WO2014095405A3 WO2014095405A3 (fr) 2014-11-20

Family

ID=50878951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/075726 Ceased WO2014095405A2 (fr) 2012-12-21 2013-12-05 Procédé de fabrication d'un moteur électrique et moteur électrique

Country Status (2)

Country Link
DE (1) DE102013213967A1 (fr)
WO (1) WO2014095405A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3437110A4 (fr) * 2016-03-31 2019-11-20 Essex Group Inc. Articles de fil d'enroulement isolés ayant des revêtements conformes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3050387B1 (fr) * 2016-04-26 2022-01-21 Valeo Equip Electr Moteur Depot d'une couche de parylene sur un element actif de machine electrique tournante

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947800A (en) * 1997-03-10 1999-09-07 Empire Abrasive Equipment Company Pneumatic suction surface blasting apparatus with an improved media delivery regulating system
DE10102924C1 (de) * 2001-01-23 2002-06-13 Pieper Innovationsgmbh Verfahren und Vorrichtung zum Strahlbearbeiten, insbesondere formgenauen Abtragen und/oder Verdichten und/oder Beschichten, von festen Flächen
DE102008000248A1 (de) * 2008-02-07 2009-08-13 Robert Bosch Gmbh Motorteil, Korrosionsschutzverfahren sowie Elektromotor
KR101138207B1 (ko) * 2010-02-10 2012-05-10 주식회사 코아비스 연료펌프용 아마추어 및 그 제조 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3437110A4 (fr) * 2016-03-31 2019-11-20 Essex Group Inc. Articles de fil d'enroulement isolés ayant des revêtements conformes
US10796814B2 (en) 2016-03-31 2020-10-06 Essex Group Llc Insulated winding wire with conformal coatings

Also Published As

Publication number Publication date
WO2014095405A3 (fr) 2014-11-20
DE102013213967A1 (de) 2014-06-26

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