[go: up one dir, main page]

EP0398036A2 - Transformator - Google Patents

Transformator Download PDF

Info

Publication number
EP0398036A2
EP0398036A2 EP90107405A EP90107405A EP0398036A2 EP 0398036 A2 EP0398036 A2 EP 0398036A2 EP 90107405 A EP90107405 A EP 90107405A EP 90107405 A EP90107405 A EP 90107405A EP 0398036 A2 EP0398036 A2 EP 0398036A2
Authority
EP
European Patent Office
Prior art keywords
transformer
guide
feet
tongues
profile
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
EP90107405A
Other languages
English (en)
French (fr)
Other versions
EP0398036B1 (de
EP0398036A3 (de
Inventor
Giuseppe Zuppiroli
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.)
Bertoldo and C Srl
Original Assignee
Bertoldo and C Srl
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 Bertoldo and C Srl filed Critical Bertoldo and C Srl
Publication of EP0398036A2 publication Critical patent/EP0398036A2/de
Publication of EP0398036A3 publication Critical patent/EP0398036A3/de
Application granted granted Critical
Publication of EP0398036B1 publication Critical patent/EP0398036B1/de
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
    • H01F27/022—Encapsulation
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits
    • 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
    • H01F2027/065—Mounting on printed circuit boards

Definitions

  • the invention relates to a transformer or autotransformer having a high-level electrical insulation, of comparatively simplified construction, with incorporated improved terminal blocks and pre-arranged for different types of positioning.
  • transformer or autotransformer having a high-level electrical insulation, of comparatively simplified construction, with incorporated improved terminal blocks and pre-arranged for different types of positioning.
  • the transformer according to the invention comprises a bobbin 1 (see Figure 2) made of suitable plastics material, on which the trasformer coils are wound. Integral with the end flanges of the bobbin 1, the seats 2-102 are formed wherein the end portions of metal tongues 3-103 of equal length are pressure-fitted. To the said tongues 3, 103 the terminals of the transformer coils are welded. Thanks to the fact that the seats 2 with tongues 3 and the seats 102 with tongues 103 are disposed on the two opposite flanges of the bobbin 1, they are considerably spaced from each other and, therefore, they are electrically insulated very well from each other.
  • the bobbin 1 Once the bobbin 1 has been completed by winding on it the transformer coils, it is provided with a metal yoke 4 as shown in Figures 3 and 5, whereafter the transformer is introduced in a chamber formed in a suitable mold and counter-mold, and plastics material having antifire characteristics, good electrical insulation features and good characteristics of resistance to chemical-physical stresses is pressure-injected thereinto, whereby the transformer is provided with an integral casing 5 (Figure 1) which encloses also the yoke 4 and which has the following functions: - it improves the electrical insulation of the transformer up to levels never found in transformers of conventional type; - it increases the heat-exchange surface which is licked by the ambient air, by providing said casing with suitable fins of the type indicated, for example, at 105 in Figures 3 to 5; - it forms at the base of the transformer, preferably at the corner regions of one of the larger sides of the yoke 4, apertured or channelled feet 6 ( Figure 1) to be used for securing the transformer in place by means
  • the feet 6 protrude for an equal extent from the bottom of the transformer so as to define therewith a portal-like profile (Figure 5).
  • the feet which are located at one side of the transformer are provided - in the inner side thereof and co-planarly with the bottom of the casing 5 - with respective recesses 8 which permit the transformer to be overhangingly mounted on a DIN guide channel 9 having an "omega" profile ( Figure 4), of the type which is used commonly with electrical switchboards for supporting terminal blocks, remote-control switches and other components.
  • the recesses 8 co-operate with the upper edge of the channel 9, whereby the transformer is substantially suspended from said edge.
  • a latch device arranged intermediately of the bottom of the casing 5 and co-operating with the lower side of said channel.
  • a guide 10 with a substantially inverted "T"-shaped profile, having a longitudinal recess 11 is formed integrally at the bottom of the transformer at an intermediate position and with a transverse orientation.
  • Said guide mounts a latch device 12 of substantially C-shaped profile, provided with an extension 112 which fits into said recess 11 of said guide and which will be acted upon by an opposing spring 13 which may be introduced into said recess 11 through a window 14 provided longitudinally in said latch device, the latter being also provided with: - a rear stop 212 co-operating with the outer end of the guide 10 at the end of its stroke; - an external extension 312 with a slot 15 for insertion of a screw-driver or other means to operate the latch in contrast against the action of the respective spring 13; - one or more front teeth 412, preferably with an inclined front side, adapted to pinch the lower edge of the channel 9 and capable of self-adaptation to the thickness of said edge.
  • the guide 10 is tapered at the initial part thereof, as indicated at 16 in Figure 3, to permit the extension 112 of the latch to enter perpendicularly the recess 11 in said guide.
  • the housings 7-107 comprise small substantially parallelepipedal boxes B-B1, opened at one end whereinto a respective, preferably metallic slider 17 is inserted to embrace the tongue 3 or 103, said slider having in the top thereof a threaded hole co-operating with a screw 18 having a head 118 with a slot for a screwdriver, which rotatably engages, without protruding therefrom, a through-hole 19 in the top of each box B-B1, said head being provided with a collar 218 abutting against said top wall of the boxes.
  • the screw 18, moreover, is of such a length as to engage, at its lower end, the tongue 3 or 103.
  • the slider 17 is of smaller depth than said boxes B-B1, whereby the latter may be closed by unitary cover structures 20, made of suitable plastics material, provided on the inner side with vertical grooves 120 ( Figure 7) into which the partitions between the various boxes B-B1 may fit, and provided with holes 21 ( Figure 8) for the passage of the electric wires to be connected to the tongues as mentioned above, and pre-arranged, finally, for application to the housings 7-107 with a firm engagement, by means of adhesives or in any other manner, ensuring a firm and sealed positioning.
  • unitary cover structures 20 made of suitable plastics material
  • the terminal block housings 7-107 may be arranged, for example, all either on the lower portion or the upper portion, or else on one or both sides of the transformer.
  • the latch device 12 may have a different construction than described and may be guided by different means.
  • the feet 6 may have different configurations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP19900107405 1989-05-18 1990-04-19 Transformator Expired - Lifetime EP0398036B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1514089 1989-05-18
IT1514089 1989-05-18

Publications (3)

Publication Number Publication Date
EP0398036A2 true EP0398036A2 (de) 1990-11-22
EP0398036A3 EP0398036A3 (de) 1991-09-11
EP0398036B1 EP0398036B1 (de) 1995-02-01

Family

ID=11146656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900107405 Expired - Lifetime EP0398036B1 (de) 1989-05-18 1990-04-19 Transformator

Country Status (2)

Country Link
EP (1) EP0398036B1 (de)
DE (1) DE69016495D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412683B (de) * 2002-10-15 2005-05-25 Siemens Ag Oesterreich Transformator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872883A (en) * 1959-05-09 1961-07-12 Philips Electrical Ind Ltd Improvements in or relating to electric transformers
US3467929A (en) * 1968-09-18 1969-09-16 Gen Electric Dry type transformer and improved enclosure assembly therefor
DE7120221U (de) * 1971-05-25 1971-08-19 Siemens Ag Kunststoffummantelter kleintransformator
DE2810071C3 (de) * 1978-03-08 1981-04-09 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Befestigen und Verdrahten von elektrischen Geräten
US4671697A (en) * 1984-05-09 1987-06-09 Mitsubishi Denki Kabushiki Kaisha Apparatus for mounting electrical appliance on frame
DE3444564A1 (de) * 1984-12-06 1986-06-12 Klaus 8600 Bamberg Bruchmann Schaltersicherungseinheit

Also Published As

Publication number Publication date
DE69016495D1 (de) 1995-03-16
EP0398036B1 (de) 1995-02-01
EP0398036A3 (de) 1991-09-11

Similar Documents

Publication Publication Date Title
EP0002099B1 (de) Elektrische Anschlussklemme mit geschlitzter Platte
US6155890A (en) Spring loaded clamping connection for electrical conductors
EP0001908A1 (de) Elektrisches Verbindergehäuse
JPH07192778A (ja) ストレインレリ−フを改良した絶縁被覆切込型 電気コネクタ
EP0162488A1 (de) Transformator mit koaxialen Spulenkörpern
JP2001076780A (ja) 電気導体のためのバスバー
KR20010080181A (ko) 전기 터미널을 포함하는 구성 부품을 전기 회로와접속하기 위한 구성
WO1982000918A1 (en) Electromagnetic relay and method of manufacturing the same
EP0398036A2 (de) Transformator
JP3886667B2 (ja) 回路遮断器
JP3476229B2 (ja) 大電流用箱形ノイズフィルタ
US5243312A (en) Electromagnetic relay
EP0914663B1 (de) Elektrische anschlussbuchse mit berührungsschutz
US6795283B2 (en) Electricals package integrating run capacitor, motor protector and motor starter
US5227757A (en) Terminal device
US5289145A (en) Electromagnetic relay and a method for its production
US4118680A (en) Circuit interrupter
JPH0132693Y2 (de)
JP3906568B2 (ja) 電磁接触器
JP2871177B2 (ja) 多極型モジュラジャック
JPS58181274A (ja) 導電体、殊に導線を緊締する装置
CN112531948A (zh) 线圈骨架和定子骨架
JP3469935B2 (ja) 箱形ノイズフィルタ
JPS591348Y2 (ja) コネクタ装置
JPS6231956Y2 (de)

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: A2

Designated state(s): DE ES FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19910617

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB

17Q First examination report despatched

Effective date: 19920806

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BERTOLDO & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB

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

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19950201

REF Corresponds to:

Ref document number: 69016495

Country of ref document: DE

Date of ref document: 19950316

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

Ref country code: DE

Effective date: 19950503

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20070410

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20070308

Year of fee payment: 18

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080419

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081231

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: 20080430

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

Ref country code: GB

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

Effective date: 20080419