EP0843325A1 - Petit transformateur - Google Patents

Petit transformateur Download PDF

Info

Publication number
EP0843325A1
EP0843325A1 EP97119679A EP97119679A EP0843325A1 EP 0843325 A1 EP0843325 A1 EP 0843325A1 EP 97119679 A EP97119679 A EP 97119679A EP 97119679 A EP97119679 A EP 97119679A EP 0843325 A1 EP0843325 A1 EP 0843325A1
Authority
EP
European Patent Office
Prior art keywords
small transformer
cover
coil
transformer according
base plate
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
EP97119679A
Other languages
German (de)
English (en)
Other versions
EP0843325B1 (fr
Inventor
Werner Böser
Armin Weyel
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.)
A Grothe & Sohne & Co KG GmbH
Original Assignee
A Grothe & Sohne & Co KG GmbH
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 A Grothe & Sohne & Co KG GmbH filed Critical A Grothe & Sohne & Co KG GmbH
Publication of EP0843325A1 publication Critical patent/EP0843325A1/fr
Application granted granted Critical
Publication of EP0843325B1 publication Critical patent/EP0843325B1/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
    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/406—Temperature sensor or protection

Definitions

  • the invention relates to small transformers, such as safety, Bell or fail-safe transformers, with one through a cover closable, overlaid or through such a cover at least partially formed plastic housing in which a two-legged sheet metal core is arranged, the package parts of which Anchored to each other in a form-fitting manner, with one of the legs arranged primary winding and secondary winding provided on the other, preferably at least one of the windings can be switched off and / or one of the windings due to a thermally changing the current limiting resistor is protected.
  • Small transformers are designed as safety transformers or used as bell transformers, in which the secondary winding is safely separated from the primary winding and the windings are conditionally short-circuit proof, and if possible also the wish to be switched off should be fulfilled.
  • the invention is therefore based on the task of building a to create such a small transformer, which consists of relatively few, there are easy to manufacture parts that are easy to assemble to let.
  • FIG. 1 shows an offset longitudinal section through a small transformer shown the right-hand side against the median plane only slightly up to the middle level of the second of four tension clamps 20 is offset while he is on the left in front of the left coil body 1 shown and in the central plane one of the Cover 21 holding spring hook 25 of the base plate 8 out is.
  • the core 1 and 2 are penetrated by core packages 3 and 4, the loosely layered and through the bobbin 1 and 2 are held together as packages.
  • Projections 5 engage in the compilation of the core packages Recesses of the core package opposite them (plug-in plates), so that solid and stable without any additional means Sheet metal cores can be obtained.
  • the one-piece molded bobbin 1 and 2 point beyond their flanges 6 downwards Support plates 7, which extend tangentially to the laminated cores and stand up with its lower edge on the base plate 8.
  • the support plates are equipped with vertical ribs 9, which after assembly overlapped by hooks 10 made in one piece with the base plate 8 will.
  • the coil formers 1, 2 thus hold the yokes of the core packages together, positively with each other through the projections 5 are connected, and the wound bobbins 1, 2 are by means of the hook 10 and connected to the base plate 8 under tension, being on the end faces of their support plates 7 and / or lean on the lower base of the core package 4.
  • the base areas the sheet metal tangent vertical ribs of low height Coil bobbins make it easier to insert those with a press fit Core packages.
  • the base plate 8 has a rectangular on its underside Recess 11 for mounting on standard rails 12. Is on the left the flank of the recess is provided with cams 13, which on one side reach under the outer flange of the standard rail 12. On the opposite side a spring cam 14 is guided in the base plate 8, which over the opposite flange can be pressed and snapped into place but also for removing the small transformer from the standard rail can be withdrawn by tools.
  • the end walls 15 of the base plate 8 have openings in the center 16 for terminal lugs 17 of the primary or secondary coil, and they include a stem 18 to form articulated recesses 19 for tension clamps 20 with captive screws.
  • the transformer is closed by putting one on Cover 21 with the central areas 22 of their end faces the recesses 19 except for openings 23 for connecting wires and further openings 47 for access by a screwdriver to the Heads of the captive screws of the clamp clamps 20, while the end face 22 shown on the left in its Cutting plane an opening 24 or at least recesses has one in the provided on both sides of the base plate Spring hook 25 engages and thus in association with three others Spring hook holds the cover 21 on the base plate 8.
  • connection areas formed in the middle of the end faces of the cover 21 of the small transformer are also overlapping by it Cover caps 26 protected.
  • These cover caps have one Support collar 27 on, with the areas of the end faces 22 of the cover 21 are affected tangentially.
  • At the free end of the Support collar hook projections 28 are formed, which breakthroughs 29 of the cover 21 penetrating the top cap 26 on this hold.
  • An opening 30 is provided in the upper region of the top cap, through the with a tool a cup-like approach 31 des Support collar can be reached, by means of which the support collar 27 is detachable from the cover 21.
  • the coil formers 1, 2 and thus the transformer Support plates 7 are with recesses for receiving PTC resistors 32 equipped, and further recesses and / or through projecting ledges 33 formed bottlenecks or in such ledges
  • the proposed passages serve to receive and define theirs Supply lines.
  • the PTC resistors 32 can also have no recesses the support plate 7 may be arranged flanking. With that you can easily accommodate one or more PTC resistors if desired, and their connections are the contact lugs of the coil formers adjacent that they can be connected directly to them or to winding ends are.
  • a usable in connection with such a small transformer Switch 46 is shown in Figure 2.
  • a contact carrier 36 With a contact carrier 36 it overlaps an edge region of the upper flange 6 of the coil former 1. At least one of the contacts 37 can directly with one End of the winding picked up by the coil body. The close both contacts one behind the other in the drawing a gap between them that can be bridged by a steel ball 38 is.
  • This steel ball is in a guide shaft 39 held, which is provided on the underside of a safety edge 40 is.
  • the switching strip reaches through with its actuating plate 41 a slot of the cover 21 and is on with its surface the inner surface of the cover 21, as well as its flanks leading against the cover 21 or parts of the bobbin 1 support.
  • FIG. 3 A view of this switching strip 40 is shown in FIG. 3 shown, which also has a centering pin 42 for a steel ball 38 shows prestressing compression spring 43.
  • This compression spring 43 is expediently made of a non-oxidizing steel alloy, for example V2
  • FIG. 4 shows an alternative possibility: Injection molding of the switching strip 40, the guide shaft 39 is in one piece equipped with a resilient plastic strip 44, the one Steel ball 38 is able to bias.
  • the description shows that a Dispensing with such a switch is readily possible by the relevant parts are omitted and a closed cover is used in which the top surface without a corresponding slot executed. is.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
EP97119679A 1996-11-16 1997-11-11 Petit transformateur Expired - Lifetime EP0843325B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29619953U 1996-11-16
DE29619953U DE29619953U1 (de) 1996-11-16 1996-11-16 Kleintransformator

Publications (2)

Publication Number Publication Date
EP0843325A1 true EP0843325A1 (fr) 1998-05-20
EP0843325B1 EP0843325B1 (fr) 2000-05-17

Family

ID=8032038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119679A Expired - Lifetime EP0843325B1 (fr) 1996-11-16 1997-11-11 Petit transformateur

Country Status (2)

Country Link
EP (1) EP0843325B1 (fr)
DE (2) DE29619953U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003063188A1 (fr) * 2002-01-24 2003-07-31 Square D Company Transformateur de classe 2 sans limitation d'energie avec protection a coefficient de temperature positive
CN109273200A (zh) * 2018-12-06 2019-01-25 贵州大学 一种具有除尘隔离功能的煤矿用变压器
CN114005638A (zh) * 2021-09-15 2022-02-01 江苏志博电气有限公司 一种具有防盗以及报警功能的油浸式变压器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19706448C2 (de) * 1997-02-19 2002-01-17 Schupa Gmbh Klingeltransformator mit oder ohne Schalter
DE19915355A1 (de) * 1999-04-06 2000-10-26 Vossloh Schwabe Gmbh Elektrische Verbindungs- oder Anschlußklemme
CN106601454B (zh) * 2016-11-30 2018-11-23 山东电力设备有限公司 一种自耦三相变压器开关支撑结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240986A1 (de) * 1982-11-05 1984-05-10 Gebrüder Frei GmbH & Co KG, 7470 Albstadt Transformator
DE29512753U1 (de) * 1995-08-08 1995-10-19 A. Grothe & Söhne GmbH & Co. KG, 50969 Köln Sicherheitstransformator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240986A1 (de) * 1982-11-05 1984-05-10 Gebrüder Frei GmbH & Co KG, 7470 Albstadt Transformator
DE29512753U1 (de) * 1995-08-08 1995-10-19 A. Grothe & Söhne GmbH & Co. KG, 50969 Köln Sicherheitstransformator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003063188A1 (fr) * 2002-01-24 2003-07-31 Square D Company Transformateur de classe 2 sans limitation d'energie avec protection a coefficient de temperature positive
CN109273200A (zh) * 2018-12-06 2019-01-25 贵州大学 一种具有除尘隔离功能的煤矿用变压器
CN114005638A (zh) * 2021-09-15 2022-02-01 江苏志博电气有限公司 一种具有防盗以及报警功能的油浸式变压器
CN114005638B (zh) * 2021-09-15 2023-11-03 江苏志博电气有限公司 一种具有防盗以及报警功能的油浸式变压器

Also Published As

Publication number Publication date
DE59701703D1 (de) 2000-06-21
EP0843325B1 (fr) 2000-05-17
DE29619953U1 (de) 1997-01-23

Similar Documents

Publication Publication Date Title
DE69004192T4 (de) Induktive Vorrichtung.
DE60105513T2 (de) Drosselspule
DE2233571C3 (de) Spulenkörper, insbesondere für Transformatoren
EP0793243B1 (fr) Transformateur
DE2909202C2 (de) Abdeck- und Sicherungskappe für Klemmschrauben an elektrischen Geräten
DE69023696T2 (de) Ein elektronisches Bauteil mit einer Halterung.
EP0843325B1 (fr) Petit transformateur
EP0621655A1 (fr) Borne de jonction pour au moins une installation électrique
DE3741032A1 (de) Hochspannungstransformator
DE2233005C3 (de) Spulenkörper-Baueinheit
EP0198265A2 (fr) Support pour la fixation par encliquetage d'appareils de commutation ou d'installation électriques sur rails profilés normalisés
DE3508327A1 (de) Stromwandler mit einem rechteckigen eisenkern
DE3433700C2 (fr)
DE2244158A1 (de) Drossel oder transformator, insbesondere als vorschaltgeraet fuer gasentladungslampen
DE3506354C1 (de) Elektromagnetisches Relais mit Isolierkappe und Verfahren zur Herstellung der Isolierkappe
DE3312513A1 (de) Transformator
DE8115956U1 (de) Induktives geraet
EP0081842B1 (fr) Inductance ou transformateur
DE29512753U1 (de) Sicherheitstransformator
DE3202580C2 (de) Relais mit Brückenkontaktanordnung und Verfahren zu deren Herstellung
EP0304906A2 (fr) Boîtier de connexion pour plaques électriques de cuisson
DE3328684C1 (de) Ankerhaltefeder für DIL-Relais
DE3443448C2 (fr)
DE3013746C2 (de) Induktives Bauelement, insbesondere Drosselspule
DE3323276A1 (de) Zuendspulenanordnung fuer eine verbrennungskraftmaschine

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): DE ES FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19981014

AKX Designation fees paid

Free format text: DE FR GB IT

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 19990112

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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): DE ES FR GB IT

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20000517

Ref country code: ES

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

Effective date: 20000517

REF Corresponds to:

Ref document number: 59701703

Country of ref document: DE

Date of ref document: 20000621

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

Effective date: 20000717

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: GB

Payment date: 20011012

Year of fee payment: 5

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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: 20021111

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20141119

Year of fee payment: 18

Ref country code: DE

Payment date: 20141119

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59701703

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160729

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 NON-PAYMENT OF DUE FEES

Effective date: 20160601

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: 20151130