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EP0913841A1 - Mécanisme de support pour un appareil électromagnétique - Google Patents

Mécanisme de support pour un appareil électromagnétique Download PDF

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Publication number
EP0913841A1
EP0913841A1 EP98308727A EP98308727A EP0913841A1 EP 0913841 A1 EP0913841 A1 EP 0913841A1 EP 98308727 A EP98308727 A EP 98308727A EP 98308727 A EP98308727 A EP 98308727A EP 0913841 A1 EP0913841 A1 EP 0913841A1
Authority
EP
European Patent Office
Prior art keywords
coplanar
magnetic cores
bases
planar
support mechanism
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Withdrawn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
EP98308727A
Other languages
German (de)
English (en)
Inventor
John Bernard Huss
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of EP0913841A1 publication Critical patent/EP0913841A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type

Definitions

  • the present invention relates to an automotive electromagnetic apparatus, and more specifically, to a support mechanism for such an electromagnetic apparatus.
  • An electromagnetic apparatus has magnetic cores. These magnetic cores generate heat which must be dissipated.
  • One way of cooling an electromagnetic device is to place the magnetic cores of the apparatus in direct contact with a metallic heat sink. The heat sink acts to draw heat away from the cores, and thereafter dissipate the heat.
  • a support mechanism for an electromagnetic apparatus having a plurality of magnetic cores with substantially planar bases, the magnetic cores adapted to receive a transformer and a plurality of inductors, the support mechanism comprising: a fixture adapted to align the planar bases of the magnetic cores in a coplanar relationship; a bracket adapted to receive the magnetic cores having a top portion with a core receiving side and a plurality of leg portions with outwardly projecting coplanar feet extending a predetermined distance beyond the coplanar bases of the magnetic cores; an elastomeric pad, adapted for attachment along the coplanar bases of the magnetic cores, having a substantially planar pad surface parallel to the coplanar feet and the coplanar bases, the planar pad surface extending a predetermined distance beyond the coplanar bases of the magnetic cores; and a thermally conductive plate adapted to receive the coplanar feet, upon separation of the electromagnetic apparatus from the fixture, so as to uniformly compress the elastomeric pad between the
  • the support mechanism further includes a resilient adhesive applied along the core receiving side of the bracket so as to fasten the bracket to the magnetic cores.
  • An advantage of the present invention is that the support mechanism provides the electromagnetic apparatus with a thermally efficient cooling and shock resistant support structure.
  • the support mechanism 10 has a bracket 12, an elastomeric pad 14, and a thermally conductive plate 16.
  • the support mechanism 10 is assembled utilising a fixture 18 as shown in Figure 1.
  • the fixture 18 is substantially rectangular and has a planar fixture surface 20.
  • a planar base receiving surface 22 is located central to the fixture surface 20.
  • the base receiving surface 22 is elevated a predetermined distance above and parallel to the fixture surface 20.
  • an electromagnetic apparatus may have a pair of inductors 26, a transformer 28, and a plurality of magnetic cores 30.
  • the manufacturing tolerances of the cores 30 may be as high as ⁇ 2.0 mm.
  • Each inductor 26 and the transformer 28 has a corresponding magnetic core 30.
  • the bracket 12 as shown in Figure 3, has a planar top portion 32 and a core receiving side 34. Projecting downward from the top portion 32 are flanges 35 which are adapted to receive the magnetic cores 30, and thereby restrict lateral movement of the cores 30. Also projecting downward from the top portion 32 are a plurality of leg portions 36 of equal, predetermined length. The leg portions 36 have inwardly directed flanges 38 which are also adapted to receive the magnetic cores 30. Projecting outward of the leg portions 36 are a plurality of coplanar feet 40. The feet 40 have holes 42 therein for receiving a conventional fastener, such as a screw (not shown), therethrough.
  • an elastomeric pad 14 is formed in a substantially rectangular shape with a predetermined thickness.
  • the pad 14 has a planar adhesive surface 15 and a planar base surface 17 parallel to the adhesive surface.
  • the pad 14 is preferably thermally conductive.
  • the thermally conductive plate 16 is substantially rectangular with an upper, electromagnetic apparatus receiving surface 19.
  • the plate 16 has fastener receiving holes (not shown) which are adapted to align with the holes 42 of the bracket 12 during assembly.
  • the plate 16 is preferably made out of a metal with high thermal conductivity such as aluminium.
  • the fixture 18 of Figure 1 is placed on a flat surface.
  • the magnetic cores 30 are then placed and aligned on the base receiving surface 22 of the fixture 18 and bonded together in conventional fashion.
  • the bases of the magnetic cores 30 thereby form a coplanar base surface such that any tolerance variance of the cores 30 is realised on the top side.
  • a resilient adhesive such as a silicon adhesive (not shown), is then applied to the core receiving side 34 of the bracket 12 as shown in Figure 3.
  • the bracket 12 is then placed over the magnetic cores 30 so that the feet 40 come into coplanar contact with the planar fixture surface 20.
  • the resulting electromagnetic apparatus support mechanism 10 is advantageous for a number of reasons.
  • the pad 14 is evenly compressed and the bases of the magnetic cores 30 are thereby parallel to, and equidistant from, the plate 16. This arrangement provides an even and efficient thermal transfer between the cores 30 and the plate 16 via the pad 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP98308727A 1997-10-30 1998-10-26 Mécanisme de support pour un appareil électromagnétique Withdrawn EP0913841A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96143897A 1997-10-30 1997-10-30
US961438 1997-10-30

Publications (1)

Publication Number Publication Date
EP0913841A1 true EP0913841A1 (fr) 1999-05-06

Family

ID=25504473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98308727A Withdrawn EP0913841A1 (fr) 1997-10-30 1998-10-26 Mécanisme de support pour un appareil électromagnétique

Country Status (1)

Country Link
EP (1) EP0913841A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2811495A1 (fr) * 2013-06-05 2014-12-10 Delphi Automotive Systems Luxembourg SA Transformateur
CN106704471A (zh) * 2015-07-20 2017-05-24 贵阳供电局 一种变压器隔震和消能减震方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622627A (en) * 1984-02-16 1986-11-11 Theta-J Corporation Switching electrical power supply utilizing miniature inductors integrally in a PCB
EP0564315A1 (fr) * 1992-03-24 1993-10-06 Thomson-Csf Dispositif de refroidissement de circuit inductif
US5469124A (en) * 1994-06-10 1995-11-21 Westinghouse Electric Corp. Heat dissipating transformer coil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622627A (en) * 1984-02-16 1986-11-11 Theta-J Corporation Switching electrical power supply utilizing miniature inductors integrally in a PCB
EP0564315A1 (fr) * 1992-03-24 1993-10-06 Thomson-Csf Dispositif de refroidissement de circuit inductif
US5469124A (en) * 1994-06-10 1995-11-21 Westinghouse Electric Corp. Heat dissipating transformer coil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2811495A1 (fr) * 2013-06-05 2014-12-10 Delphi Automotive Systems Luxembourg SA Transformateur
CN106704471A (zh) * 2015-07-20 2017-05-24 贵阳供电局 一种变压器隔震和消能减震方法及装置

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