EP0562469A1 - Transformateur de puissance à petite capacité, isolé contre le contact direct - Google Patents

Transformateur de puissance à petite capacité, isolé contre le contact direct Download PDF

Info

Publication number
EP0562469A1
EP0562469A1 EP93104501A EP93104501A EP0562469A1 EP 0562469 A1 EP0562469 A1 EP 0562469A1 EP 93104501 A EP93104501 A EP 93104501A EP 93104501 A EP93104501 A EP 93104501A EP 0562469 A1 EP0562469 A1 EP 0562469A1
Authority
EP
European Patent Office
Prior art keywords
housing
laminated core
power transformer
transformer
low
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.)
Granted
Application number
EP93104501A
Other languages
German (de)
English (en)
Other versions
EP0562469B1 (fr
Inventor
Peter Horn
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.)
Knobel AG Lichttechnische Komponenten
Original Assignee
Knobel AG Lichttechnische Komponenten
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 Knobel AG Lichttechnische Komponenten filed Critical Knobel AG Lichttechnische Komponenten
Publication of EP0562469A1 publication Critical patent/EP0562469A1/fr
Application granted granted Critical
Publication of EP0562469B1 publication Critical patent/EP0562469B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air

Definitions

  • the invention relates to a low-power transformer insulated against contact with a plastic housing.
  • the invention has for its object to provide a low-power transformer insulated against contact, which does not have the disadvantages mentioned.
  • the transformer should be inexpensive to manufacture and the heat generated during operation should be easy to dissipate.
  • the housing preferably consists of two sleeves, which are each pushed onto the transformer from the opposite side and which snap onto the base plate of the transformer. At the point at which the two sleeves lie opposite one another, a third housing part is provided which covers the separation point. This arrangement results in a particularly simple assembly. Furthermore, with the same sleeve parts, transformers of different lengths can be provided with a housing, in that only the middle part has to be made more or less wide.
  • FIG. 1 shows a small power transformer uncut and its housing in vertical longitudinal section.
  • the laminated core 1 of the transformer can be seen, which is arranged on a base plate 4.
  • the bottom plate 4 engages on both sides in lateral grooves of the laminated core 1 and holds it together.
  • the two end windings of the coils emerging from the sheet metal package are covered on one side with an end cap 2 and on the other end side with one Connection cap 3, which carries the connection terminals of the transformer.
  • the housing of the transformer consists of a first sleeve 5 made of plastic and a second sleeve 6 made of plastic, which are pushed onto the laminated core 1 from the two end faces thereof.
  • the sleeves are preferably fixed to the base plate 4, as will be shown below. Between the two sleeves 5, 6, a middle housing part 7 is provided, which overlaps both sleeves.
  • a cover 8 is provided on the sleeve 5 so that there is access to the connection terminals of the transformer.
  • Figure 2 shows a vertical longitudinal section through the sleeve 6, which is provided on the outside with a plurality of cooling fins 10, which enlarge the surface of the sleeve 6 in order to dissipate the heat generated by the transformer to the environment.
  • the lower inner surface of the sleeve 6 is provided with a projection 11 which engages in a corresponding recess in the base plate 4. This enables a particularly simple assembly of the housing on the laminated core 1 and the base plate 4 by pushing the sleeve 6 onto the laminated core with the base plate from the end face until the projection 11 engages in the corresponding recess in the base plate.
  • a fastening foot 12 can also be provided on the sleeve for fastening the transformer at its place of use.
  • Figure 3 shows a vertical cross section through the sleeve 6 along the line AA of Figure 2. Only one half of the sleeve is shown.
  • the outline of the laminated core 1 and the base plate 4 is also partially drawn. It can be seen from this that the inner surface of the plastic housing lies flat against the laminated core so that there is good heat transfer from the laminated core to the plastic housing.
  • the plastic housing is preferably made minimally smaller than the outline of the laminated core with the base plate 4. This results in a slight expansion of the sleeve when inserting the laminated core or resilient contact of the housing inner surfaces on the laminated core, ie a good contact to enable the heat flow.
  • the corner regions 13 and 14 of the housing are accordingly designed such that there is a resilient loading of the laminated core with the base plate through the housing inner surfaces 15, 16 and 17.
  • FIG. 4 shows a vertical longitudinal section through a section of the sleeve 5.
  • the projection 11, which is intended to be latched onto the base plate, can also be seen.
  • the cover 8 is shown, which gives access to the connection terminals of the transformer.
  • This cover 8 is preferably made in one piece with the sleeve 5 and connected to the sleeve by a plastic hinge.
  • the cover 8 can be designed such that it engages when it is closed on the fixed housing and can only be opened again by means of a tool.
  • the cover preferably also serves as strain relief for the cables to be connected.
  • plastics for the housing different types of plastic come into consideration as plastics for the housing. Plastics which have good thermal conductivity are preferred.
  • the polyamide material PA 6 is particularly suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Rectifiers (AREA)
  • Insulating Of Coils (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP93104501A 1992-03-26 1993-03-19 Transformateur de puissance à petite capacité, isolé contre le contact direct Expired - Lifetime EP0562469B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH958/92A CH683214A5 (de) 1992-03-26 1992-03-26 Gegen Berührung isolierter Kleinleistungstransformator.
CH958/92 1992-03-26

Publications (2)

Publication Number Publication Date
EP0562469A1 true EP0562469A1 (fr) 1993-09-29
EP0562469B1 EP0562469B1 (fr) 1996-10-09

Family

ID=4199136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104501A Expired - Lifetime EP0562469B1 (fr) 1992-03-26 1993-03-19 Transformateur de puissance à petite capacité, isolé contre le contact direct

Country Status (5)

Country Link
EP (1) EP0562469B1 (fr)
AT (1) ATE144070T1 (fr)
CH (1) CH683214A5 (fr)
DE (1) DE59304070D1 (fr)
ES (1) ES2093300T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185811B1 (en) * 1994-08-01 2001-02-13 Hammond Manufacturing Company Method for making a transformer
EP1528577A1 (fr) * 2003-10-30 2005-05-04 Vossloh-Schwabe Deutschland GmbH Unité d'alimentation pour dispositif d'éclairage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2275398B1 (es) * 2005-04-18 2008-04-01 Polylux, S.L. Transformador encapsulado de pequeña potencia y su correspondiente procedimiento de fabricacion.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947957A (en) * 1957-04-22 1960-08-02 Zenith Radio Corp Transformers
US3387244A (en) * 1966-05-03 1968-06-04 Hermetic Coil Co Inc Transformer having winding leads held in pressure contact with terminals
CH515592A (de) * 1970-02-05 1971-11-15 Zumtobel Walter Transformator oder Induktionsspule
GB1268768A (en) * 1968-07-18 1972-03-29 South Wales Switchgear Housing tanks for transformers
FR2221899A1 (fr) * 1973-03-17 1974-10-11 Frater Sae
EP0081842A2 (fr) * 1981-12-16 1983-06-22 May & Christe GmbH Transformatorenwerke Inductance ou transformateur
FR2595415A3 (fr) * 1986-03-06 1987-09-11 Ducellier & Cie Circuit magnetique loge dans un boitier de bobine d'allumage pour moteur a combustion interne
EP0254132A1 (fr) * 1986-07-15 1988-01-27 Oy Helvar Dispositif pour ballast ou transformateur améliorant le refroidissement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947957A (en) * 1957-04-22 1960-08-02 Zenith Radio Corp Transformers
US3387244A (en) * 1966-05-03 1968-06-04 Hermetic Coil Co Inc Transformer having winding leads held in pressure contact with terminals
GB1268768A (en) * 1968-07-18 1972-03-29 South Wales Switchgear Housing tanks for transformers
CH515592A (de) * 1970-02-05 1971-11-15 Zumtobel Walter Transformator oder Induktionsspule
FR2221899A1 (fr) * 1973-03-17 1974-10-11 Frater Sae
EP0081842A2 (fr) * 1981-12-16 1983-06-22 May & Christe GmbH Transformatorenwerke Inductance ou transformateur
FR2595415A3 (fr) * 1986-03-06 1987-09-11 Ducellier & Cie Circuit magnetique loge dans un boitier de bobine d'allumage pour moteur a combustion interne
EP0254132A1 (fr) * 1986-07-15 1988-01-27 Oy Helvar Dispositif pour ballast ou transformateur améliorant le refroidissement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 7 (E-41)(679) 17. Januar 1981 & JP-A-55 138 818 ( MATSUSHITA ) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185811B1 (en) * 1994-08-01 2001-02-13 Hammond Manufacturing Company Method for making a transformer
EP1528577A1 (fr) * 2003-10-30 2005-05-04 Vossloh-Schwabe Deutschland GmbH Unité d'alimentation pour dispositif d'éclairage

Also Published As

Publication number Publication date
EP0562469B1 (fr) 1996-10-09
DE59304070D1 (de) 1996-11-14
ES2093300T3 (es) 1996-12-16
ATE144070T1 (de) 1996-10-15
CH683214A5 (de) 1994-01-31

Similar Documents

Publication Publication Date Title
EP1774544B1 (fr) Support pour inductance et composant inductif comprenant ce support
EP0927510B1 (fr) Boitier dissipateur de chaleur servant a loger des composants electriques ou electroniques
DE69723461T2 (de) Gehäuse zur elektronischen Verbindung an einen Computer ausgerüstet mit einem IC-Karten-Verbinder
DE69929636T2 (de) Gehäuse für elektronisches Bauelement
DE102006034777A1 (de) Kombination aus einem Wechselrichtergehäuses und einem als Wärme-Senke fungierenden Bauteil
DE60118046T2 (de) Montageanordnung zur Montierung von Leistungselementen auf einer Wärmesenke
DE112014001321T5 (de) Elektronikkomponenten-Anordnungsaufbau und elektrischer Anschlusskasten
DE3611658A1 (de) Elektronikbauteilaufbau
DE2328505A1 (de) Elektrischer verbinder fuer die leitenden kerne isolierter draehte
EP0793243A1 (fr) Transformateur
EP0562469B1 (fr) Transformateur de puissance à petite capacité, isolé contre le contact direct
DE3625661A1 (de) Elektromotor
EP1632042B1 (fr) Dispositif pour absorber un bruissement
DE10161593B4 (de) Flacher Halbleiterstapel
EP1597951B1 (fr) Appareil electronique a dissipation de chaleur plus sure
EP1689078B1 (fr) Installation permettant d'absorber le bruit electrique
EP0489341A1 (fr) Boîtier pour des circuits électriques
EP0410119A2 (fr) Thermostat à mécanisme de commutation bimétallique
EP1636809B1 (fr) Composant miniature inductif concu pour un montage smd
DE10006667B4 (de) Leistungsschalter
DE102016102312B4 (de) Gehäuse für einen Laufradblock und Laufradblock hiermit
DE4231827C2 (de) Klemmvorrichtung zum Festklemmen der Leiterplattenränder eines elektronischen Moduls in den seitlichen Führungsnuten eines Gehäuses
DE112018002513T5 (de) Elektrischer Verteilerkasten
DE3123794A1 (de) Lichtschranke mit einem flachen, im wesentlichen quaderfoermigen gehaeuse
EP0471199A1 (fr) Boîte de connexion pour conducteurs électriques

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): AT CH DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19940325

17Q First examination report despatched

Effective date: 19940819

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI

REF Corresponds to:

Ref document number: 144070

Country of ref document: AT

Date of ref document: 19961015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961015

REF Corresponds to:

Ref document number: 59304070

Country of ref document: DE

Date of ref document: 19961114

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2093300

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: MARCHI & PARTNERS S.R.L.

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: KNOBEL AG LICHTTECHNISCHE KOMPONENTEN

Free format text: KNOBEL AG LICHTTECHNISCHE KOMPONENTEN# #CH-8755 ENNENDA (CH) -TRANSFER TO- KNOBEL AG LICHTTECHNISCHE KOMPONENTEN# #CH-8755 ENNENDA (CH)

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

Ref country code: AT

Payment date: 20090317

Year of fee payment: 17

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

Ref country code: CH

Payment date: 20090212

Year of fee payment: 17

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

Ref country code: IT

Payment date: 20090325

Year of fee payment: 17

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

Ref country code: FR

Payment date: 20090312

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100319

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101130

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100319

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

Ref country code: DE

Payment date: 20120531

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20120402

Year of fee payment: 20

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

Ref country code: ES

Payment date: 20120427

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59304070

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20130318

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130320

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130318

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130802

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130320