EP0331008B1 - Appareil d'induction électromagnétique avec dispositif supprimant le bruit - Google Patents

Appareil d'induction électromagnétique avec dispositif supprimant le bruit Download PDF

Info

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
German (de)
English (en)
Other versions
EP0331008A1 (fr
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/fr
Application granted granted Critical
Publication of EP0331008B1 publication Critical patent/EP0331008B1/fr
Expired legal-status Critical Current

Links

Images

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.

Landscapes

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

Claims (7)

  1. Appareil d'induction électromagnétique avec un dispositif supprimant le son, comprenant :
       un corps principal (3) de réservoir ayant une plaque (32) de fond de réservoir et pouvant être placé sur une surface de plancher (9) et contenant un dispositif électrique (1) qui vibre pendant son fonctionnement ;
    des organes de support (7) attachés à la surface externe de la plaque (32) de fond du réservoir avec des espaces (10) définis entre les organes de support (7) et entre la plaque (32) de fond du réservoir et la surface (9) du plancher ; caractérisé par des moyens de suppression du son (11, 12, 13, 14) disposés en association avec les espaces (10) définis entre les organes de support (7) et entre la plaque (32) de fond du réservoir et la surface (9) du plancher.
  2. Appareil d'induction électromagnétique selon la revendication 1, où le moyen de suppression du son (11, 12, 13, 14) comprend un organe formant barrière contre le son (11) qui ferme les espaces (10) définis entre la plaque (32) du fond du réservoir et la surface (9) du plancher.
  3. Appareil d' induction électromagnétique selon la revendication 2, où l'organe formant barrière du son (11) comprend une plaque de blindage attachée au corps principal (3) du réservoir.
  4. Appareil d'induction électromagnétique selon l'une quelconque des revendications 1 à 3, où le moyen de suppression du son (11, 12, 13, 14) comprend un élément absorbant le son (12, 13, 14) disposé dans chacun des espaces (10).
  5. Appareil d'induction électromagnétique selon l'une quelconque des revendications 1 à 4, où le moyen de suppression du son (11, 12, 13, 14) comprend un moyen de suppression du son (12, 13, 14) pour changer la dimension des espaces de manière qu'aucune résonance ne se produise dans les espaces (10).
  6. Appareil d'induction électromagnétique selon l'une quelconque des revendications 1 à 5, où les moyens de changement de dimension (12, 13, 14) comprennent une plaque horizontale (12, 13b, 14b) qui est placée dans chacun des espaces (10) pour empêcher une résonance du son dans les espaces (10).
  7. Appareil d'induction électromagnétique selon l'une quelconque des revendications 1 à 6, où les moyens de suppression du son (11, 12, 13, 14) comprennent des éléments en forme de grille ou en forme d'échelle (13, 14) ayant une plaque horizontale (13b, 14b) essentiellement parallèle à la surface (9) du plancher et un certain nombre de plaques verticales (13a, 14a) attachées à la plaque horizontale (13b, 14b) où les éléments en forme de grille ou en forme d'échelle (13, 14) sont insérés dans les espaces respectifs (10).
EP19890103172 1988-02-29 1989-02-23 Appareil d'induction électromagnétique avec dispositif supprimant le bruit Expired EP0331008B1 (fr)

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 (fr) 1989-09-06
EP0331008B1 true EP0331008B1 (fr) 1992-10-21

Family

ID=12797666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890103172 Expired EP0331008B1 (fr) 1988-02-29 1989-02-23 Appareil d'induction électromagnétique avec dispositif supprimant le bruit

Country Status (3)

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

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 (fr) 1989-09-06

Similar Documents

Publication Publication Date Title
US3451503A (en) Sound-reducing housing for alternating current electric apparatus
EP0048990A2 (fr) Boîtier amortisseur de bruit pour appareil statique à induction
US8044307B2 (en) Power transformer/reactor
EP0331008B1 (fr) Appareil d'induction électromagnétique avec dispositif supprimant le bruit
US5184104A (en) Electromagnetic induction apparatus with a sound suppressing arrangement
US5814761A (en) Passive EMI dissipation apparatus and method
US4999745A (en) Electrical equipment chassis unit
JPS6161247B2 (fr)
KR102802724B1 (ko) 변압기 배열체
JP7232608B2 (ja) 静止誘導電器
US20170110239A1 (en) Acoustic Panels for Transformers
JPH0516133B2 (fr)
JPS5834907A (ja) 防音油入電気機器
JP2003243855A (ja) 回路基板の取付け構造
JPS639915A (ja) 静止誘導電器
KR860003014Y1 (ko) 정지유도전기(靜止誘導電器)
JP3161210B2 (ja) 静止誘導電器
JPH03120707A (ja) 静止誘導電器
JPH0347313Y2 (fr)
JPS6044811B2 (ja) 静止誘導電器の防音装置
EP0453928B1 (fr) Appareil de chauffage à hautes fréquences
JPS59182513A (ja) 静止誘導電器
JP3772469B2 (ja) 静止誘導電器
JPS5843504A (ja) 大容量変圧器のタンク
JPH10284328A (ja) 防音油入静止誘導機器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR LI SE

17P Request for examination filed

Effective date: 19890905

17Q First examination report despatched

Effective date: 19911204

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR LI SE

REF Corresponds to:

Ref document number: 68903230

Country of ref document: DE

Date of ref document: 19921126

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940216

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940224

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940511

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19940516

Year of fee payment: 6

EAL Se: european patent in force in sweden

Ref document number: 89103172.6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950228

Ref country code: CH

Effective date: 19950228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19951031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951101

EUG Se: european patent has lapsed

Ref document number: 89103172.6

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST