WO2017194444A1 - Procédé de fixation d'un enroulement de bobine - Google Patents

Procédé de fixation d'un enroulement de bobine Download PDF

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Publication number
WO2017194444A1
WO2017194444A1 PCT/EP2017/060876 EP2017060876W WO2017194444A1 WO 2017194444 A1 WO2017194444 A1 WO 2017194444A1 EP 2017060876 W EP2017060876 W EP 2017060876W WO 2017194444 A1 WO2017194444 A1 WO 2017194444A1
Authority
WO
WIPO (PCT)
Prior art keywords
polymer material
coil
coil wire
fixing
bobbin
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/EP2017/060876
Other languages
German (de)
English (en)
Inventor
Thomas Schaefer
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of WO2017194444A1 publication Critical patent/WO2017194444A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2876—Cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
    • H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/122—Insulating between turns or between winding layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins

Definitions

  • the present invention relates to methods of fixing an electrically conductive coil wire to a coil carrier.
  • Electromagnetic machines or components such as electric motors, electromagnets, relays, transformers, measuring coils, loudspeakers or the like, have coils, i. wound wire, to generate or detect magnetic fields.
  • the coils or the wire of the coil is for this purpose acted upon by an electric current.
  • thermally conductive substances are sometimes applied or introduced in upstream and / or downstream working steps and in the winding process.
  • heat is dissipated only superficially, as described, for example, in German patent application DE 102010064072 A1, or very costly heat-conducting materials introduced, for example, by application in the winding process, casting, dipping, trickling, pressing or the like. It is therefore an object of the present invention to solve the problems described above and in particular to provide a method for producing an improved coil. This object is achieved according to the invention by the subject matter of independent claim 1. Further embodiments of the inventive subject matter can be found in the dependent subclaims.
  • a method for fixing an electrically conductive coil wire on a bobbin is to provide, with which eliminates the above problems, a coil wire mounted as effectively as possible on a bobbin and the largest possible heat dissipation can be achieved from a coil out.
  • a method for fixing an electrically conductive coil wire on a coil carrier is provided for this purpose.
  • the method comprises the method steps
  • Coils produced in this way improve the thermal conductivity (> 0.3 Wm / K) and facilitate the fixation of the coil wire on the coil carrier.
  • the heat loss of the coil winding can be increasingly dissipated to the outer surface of the coil, whereby a longer life with a higher resistance to temperature, vibration and erosion can be achieved.
  • coils of more compact dimensions i. possible with a higher power density.
  • the cost can be achieved by choosing a cheaper coil wire quality.
  • the simplified dosage of the fixing or thermally conductive material, the cost can be further reduced.
  • the curing of the polymer material takes place by polymerization, polyaddition or polycondensation.
  • the curing can also be referred to as solidification.
  • the polymer material is both a thermoset material and a thermoplastic material or elastomer material.
  • a particularly good thermal conductivity can be achieved.
  • the thermoset material a Thermal conductivity of greater than 0.3 Wm / K (> 0.3 Wm / K) has. It has been shown that a particularly good heat removal from the coil can be achieved by using a thermosetting material having a thermal conductivity of greater than 0.3 Wm / K (> 0.3 Wm / K).
  • thermoplastic e.g., applying a hot melt adhesive
  • elastomer e.g., applying a silicone
  • the polymer material may also be an adhesive.
  • the winding wires can be fixed in a particularly fast and efficient manner.
  • the polymer material may also be a thermoplastic or an elastomer.
  • the thermoplastic may be a hot-melt adhesive.
  • the elastomer may be silicone.
  • Fig. 1a is a schematic front view of a bobbin with a coil wire during the winding process
  • Figure 1 b is a schematic side view of the bobbin with the coil wire during the winding process.
  • FIG. 2a shows a first detail view of a portion of the bobbin with the coil wire
  • 2b shows a second detail view of a portion of the bobbin with the coil wire.
  • FIG. 1 and 2 show a schematic representation of a bobbin 1 with a coil wire 2 during the winding process.
  • the bobbin 1 essentially comprises a carrier element 3 and a first limiting element 4 and a second limiting element 5.
  • the carrier element 3 has a substantially cylindrical shape.
  • the coil wire 2 consists of at least one metal.
  • the coil wire 2 has a circular diameter cross-section. However, it is also possible that the average cross section of the coil wire 2 has any other possible shape.
  • the first limiting element 4 is configured substantially as a first circular disk 4a
  • the second limiting element 5 is designed essentially as a second circular disk 4b.
  • the second disc 4b has a slightly larger diameter than the first disc 4a.
  • the first disc 4a has a through hole 6, through which the coil wire 2 can be guided.
  • the bobbin 1 or the coil wound from the coil wire 2 can also have any other possible design.
  • a most uniform layer of thermally conductive and curable polymer material 7 is applied to the cylindrical surface 8 of the carrier element 3.
  • the polymer material 7 has the function of an adhesive.
  • the coil wire 2 is wound onto the carrier element 3 of the coil carrier 1 to form a coil or coil winding.
  • the coil wire 2 completely immersed in the still soft polymer material 7, so that the coil wire 2 is completely covered by the polymer material 7.
  • the free end of the coil wire 9 is guided through the through hole 6 in the first disk 4a (see Fig. 1 b).
  • the amount or the height H of the polymer material 7 on the bobbin 1 is chosen so that the wound to the coil coil wire 2 is still covered exactly by the polymer material 7.
  • polymer material 7 may serve to provide additional components, such as e.g. e.g. Cooling elements, bearing shells, components for fixing the coil or bobbin 1 or the like to connect to the bobbin 1.
  • additional components are not shown in the figures.
  • first limiting element 4 and / or second limiting element 4 different through-holes, e.g. Channels, be provided. Additional polymer material 7 can flow through these through-holes or channels for attaching further components or components.
  • connection between bobbin 1 and other components and components e.g. Laminated core or its base insulation, can be further improved by a previous filling of existing holes or channels. The improvement relates in particular to mechanical and thermal connection. Neither the different through holes nor the other components or components are shown in the figures.
  • the polymer material 7 can harden or solidify.
  • the curing or solidification can be carried out for example by polymerization, polyaddition or polycondensation.
  • a hardener eg 2-component polymer / adhesive
  • a trigger eg UV, visible light and / or heat radiation , Humidity, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention concerne un procédé de fixation d'un fil de bobine électroconducteur sur un support de bobine. Le procédé comprend les étapes suivantes : application d'un matériau polymère thermoconducteur et durcissable sur au moins une partie du support de bobine ; pose du fil de bobine électroconducteur sur le support de bobine de sorte que le fil de bobine soit au moins en partie recouvert par le matériau polymère ; et durcissement du matériau polymère pour fixer le fil de bobine par cohésion et/ou adhérence du matériau polymère.
PCT/EP2017/060876 2016-05-13 2017-05-08 Procédé de fixation d'un enroulement de bobine Ceased WO2017194444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16169559.8 2016-05-13
EP16169559.8A EP3244427A1 (fr) 2016-05-13 2016-05-13 Procede de fixation d'un enroulement de bobine

Publications (1)

Publication Number Publication Date
WO2017194444A1 true WO2017194444A1 (fr) 2017-11-16

Family

ID=55970892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/060876 Ceased WO2017194444A1 (fr) 2016-05-13 2017-05-08 Procédé de fixation d'un enroulement de bobine

Country Status (2)

Country Link
EP (1) EP3244427A1 (fr)
WO (1) WO2017194444A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4047789A1 (fr) * 2021-02-18 2022-08-24 Hilti Aktiengesellschaft Moteur électrique thermiquement amélioré
EP4401288A1 (fr) 2023-01-16 2024-07-17 Hilti Aktiengesellschaft Moteur électrique, stator pour moteur électrique, rotor pour moteur électrique et procédé de fabrication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4047797A1 (fr) * 2021-02-18 2022-08-24 Hilti Aktiengesellschaft Amélioration de la connexion thermique des bobines traversées par un courant électrique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554730A (en) * 1984-01-09 1985-11-26 Westinghouse Electric Corp. Method of making a void-free non-cellulose electrical winding
JPS6177315A (ja) * 1984-09-25 1986-04-19 Matsushita Electric Works Ltd 多層巻きコイルの製造法
DE19919069A1 (de) * 1999-04-27 2000-11-02 Abb T & D Tech Ltd Verfahren zur Herstellung einer Wicklung und Wicklung
US20080040912A1 (en) * 2005-02-25 2008-02-21 Michel Aeschlimann Method for Making a Coil for a Rotating Electrical Machine Rotor
DE102010064072A1 (de) 2010-12-23 2012-06-28 Robert Bosch Gmbh Trägerzahn mit einer gewickelten Spule in einer elektrischen Maschine
EP3096335A1 (fr) * 2015-05-21 2016-11-23 HILTI Aktiengesellschaft Procédé d'enroulement de bobine et bobineuse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554730A (en) * 1984-01-09 1985-11-26 Westinghouse Electric Corp. Method of making a void-free non-cellulose electrical winding
JPS6177315A (ja) * 1984-09-25 1986-04-19 Matsushita Electric Works Ltd 多層巻きコイルの製造法
DE19919069A1 (de) * 1999-04-27 2000-11-02 Abb T & D Tech Ltd Verfahren zur Herstellung einer Wicklung und Wicklung
US20080040912A1 (en) * 2005-02-25 2008-02-21 Michel Aeschlimann Method for Making a Coil for a Rotating Electrical Machine Rotor
DE102010064072A1 (de) 2010-12-23 2012-06-28 Robert Bosch Gmbh Trägerzahn mit einer gewickelten Spule in einer elektrischen Maschine
EP3096335A1 (fr) * 2015-05-21 2016-11-23 HILTI Aktiengesellschaft Procédé d'enroulement de bobine et bobineuse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4047789A1 (fr) * 2021-02-18 2022-08-24 Hilti Aktiengesellschaft Moteur électrique thermiquement amélioré
EP4401288A1 (fr) 2023-01-16 2024-07-17 Hilti Aktiengesellschaft Moteur électrique, stator pour moteur électrique, rotor pour moteur électrique et procédé de fabrication

Also Published As

Publication number Publication date
EP3244427A1 (fr) 2017-11-15

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