EP0331008B1 - Elektromagnetischer Induktionsapparat mit Geräuschunterdrückungsanordung - Google Patents

Elektromagnetischer Induktionsapparat mit Geräuschunterdrückungsanordung Download PDF

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Publication number
EP0331008B1
EP0331008B1 EP19890103172 EP89103172A EP0331008B1 EP 0331008 B1 EP0331008 B1 EP 0331008B1 EP 19890103172 EP19890103172 EP 19890103172 EP 89103172 A EP89103172 A EP 89103172A EP 0331008 B1 EP0331008 B1 EP 0331008B1
Authority
EP
European Patent Office
Prior art keywords
electromagnetic induction
sound
induction apparatus
spaces
tank bottom
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.)
Expired
Application number
EP19890103172
Other languages
English (en)
French (fr)
Other versions
EP0331008A1 (de
Inventor
Katsumi C/O Ako Seisakusho Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0331008A1 publication Critical patent/EP0331008A1/de
Application granted granted Critical
Publication of EP0331008B1 publication Critical patent/EP0331008B1/de
Expired 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
    • H01F27/33—Arrangements for noise damping

Definitions

  • a conventional electromagnetic induction apparatus with a sound suppressing arrangement is designed as described above, noises generated due to the vibration of the tank side plate 3 can be effectively reduced by the sound absorbing members 5 attached to the tank side plates 3, but noises generated by the tank bottom plate 32 and radiated from the space 10 defined between the reinforcing members 7, the bottom plate 32 and the floor surface 9 cannot be effectively reduced. Therefore, it has been necessary to provide a large scale sound insulating arrangement such as a sound shield wall or the like around the induction apparatus in order to effectively reduce the noise of the conventional electromagnetic induction apparatus.
  • any noise generated by the vibration of the tank bottom plate 32 due to the vibration of the coil assembly 1 within the tank propagates in the space 10 as shown by arrows and is shielded and confined by the sound barrier member 11 within the spaces 10, so that the leakage of the noise to the exterior from the spaces 10 formed between the tank bottom plate 32 and the floor surface 9 is significantly reduced.
  • FIGs. 2 to 4 employs the sound barrier members 11 by which the noise generated by the tank bottom wall 32 is shielded and confined by the sound shielding members 11 mounted to the tank bottom plate 32 or the tank side plate 31 in the vicinity of the tank bottom plate 32 to close the spaces 10 below the tank bottom wall 32
  • a similar sound suppressing effect can also be obtained by inserting a sound absorbing element into the spaces 10 defined between the support members 7 and between the tank bottom wall 32 and the floor surface 9.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (7)

  1. Elektromagnetische Induktionsvorrichtung mit einer Schalldämpfungsanordnung, die folgendes aufweist:
    einen Behälterhauptkörper (3), der eine Behälterbodenplatte (32) hat und auf einer Bodenfläche (9) plazierbar ist und eine elektrische Einrichtung (1) enthält, die im Betrieb schwingt;
    Stützelemente (7), die an der Außenfläche der Behälterbodenplatte (32) befestigt sind, wobei Zwischenräume (10) zwischen den Stützelementen (7) und zwischen der Behälterbodenplatte (32) und der Bodenfläche (9) definiert sind, gekennzeichnet durch
    Schalldämpfungseinrichtungen (11, 12, 13, 14), die in Zuordnung zu den Zwischenräumen (10), die zwischen den Stützelementen (7) und zwischen der Behälterbodenplatte (32) und der Bodenfläche (9) definiert sind, angeordnet sind.
  2. Elektromagnetische Induktionsvorrichtung nach Anspruch 1, wobei die Schalldämpfungseinrichtungen (11, 12, 13, 14) eine Schallbarriere (11) aufweisen, die die Zwischenräume (10), die zwischen der Behälterbodenplatte (32) und der Bodenfläche (9) definiert sind, schließt.
  3. Elektromagnetische Induktionsvorrichtung nach Anspruch 2, wobei die Schallbarriere (11) eine Abschirmplatte aufweist, die an dem Behälterhauptkörper (3) befestigt ist.
  4. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 3, wobei die Schalldämpfungseinrichtungen (11, 12, 13, 14) ein Schallabsorptionselement (12, 13, 14) aufweisen, das in jedem der Zwischenräume (10) angeordnet ist.
  5. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 4, wobei die Schalldämpfungseinrichtungen (11, 12, 13, 14) eine Schalldämpfungseinrichtung (12, 13, 14) aufweisen, um die Dimensionen der Zwischenräumen zu verändern, so daß keine Resonanz in den Zwischenräumen (10) auftritt.
  6. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Dimensionsänderungseinrichtungen (12, 13, 14) eine horizontale Platte (12, 13b, 14b) aufweisen, die in jedem der Zwischenräume (10) positioniert ist, um jede Resonanz von Schall in den Zwischenräumen (10) zu verhindern.
  7. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 6, wobei die Schalldämpfungseinrichtungen (11, 12, 13, 14) gitterartige oder leiterförmige Elemente (13, 14) aufweisen, die eine horizontale Platte (13b, 14b), die im wesentlichen parallel zu der Bodenfläche (9) verläuft, und eine Vielzahl von vertikalen Platten (13a, 14a) haben, die an der horizontalen Platte (13b, 14b) befestigt sind, wobei die gitterartigen oder leiterförmigen Elemente (13, 14) in die jeweiligen Zwischenräume (10) eingesetzt sind.
EP19890103172 1988-02-29 1989-02-23 Elektromagnetischer Induktionsapparat mit Geräuschunterdrückungsanordung Expired EP0331008B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4823188A JPH01220809A (ja) 1988-02-29 1988-02-29 電磁誘導機器の減音装置
JP48231/88 1988-02-29

Publications (2)

Publication Number Publication Date
EP0331008A1 EP0331008A1 (de) 1989-09-06
EP0331008B1 true EP0331008B1 (de) 1992-10-21

Family

ID=12797666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103172 Expired EP0331008B1 (de) 1988-02-29 1989-02-23 Elektromagnetischer Induktionsapparat mit Geräuschunterdrückungsanordung

Country Status (3)

Country Link
EP (1) EP0331008B1 (de)
JP (1) JPH01220809A (de)
DE (1) DE68903230T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8044307B2 (en) 2006-12-28 2011-10-25 Abb Technology Ltd. Power transformer/reactor
JP5444644B2 (ja) * 2008-06-20 2014-03-19 株式会社明電舎 静止誘導機器
JP2013254881A (ja) * 2012-06-08 2013-12-19 Toshiba Corp 電気機器
JP6727142B2 (ja) * 2017-01-13 2020-07-22 株式会社日立製作所 静止誘導電器
JP7232608B2 (ja) * 2018-10-04 2023-03-03 株式会社日立製作所 静止誘導電器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58143510A (ja) * 1982-02-20 1983-08-26 Hitachi Ltd 静止誘導電器

Also Published As

Publication number Publication date
JPH01220809A (ja) 1989-09-04
DE68903230D1 (de) 1992-11-26
DE68903230T2 (de) 1993-05-19
EP0331008A1 (de) 1989-09-06

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