EP0069973B1 - Bobine de transformateur - Google Patents
Bobine de transformateur Download PDFInfo
- Publication number
- EP0069973B1 EP0069973B1 EP82106040A EP82106040A EP0069973B1 EP 0069973 B1 EP0069973 B1 EP 0069973B1 EP 82106040 A EP82106040 A EP 82106040A EP 82106040 A EP82106040 A EP 82106040A EP 0069973 B1 EP0069973 B1 EP 0069973B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- winding
- core
- flange
- longitudinal rib
- 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
Links
- 238000004804 winding Methods 0.000 claims description 83
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
-
- 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
Definitions
- the invention relates to a transformer coil with a one-piece coil body made of insulating material with flanges formed on both ends and with a core bore, in the area of which a longitudinal rib is formed, with winding support points arranged on at least one coil flange, and with one arranged in the core bore, axially over the iron core extending beyond the coil flanges.
- Such a transformer coil is already known from DE-B-1 539 679.
- a coil former made of plastic with an approximately rectangular winding cylinder is used, in which a sheet metal core with alternately connected iron sheets is inserted.
- the inner wall of the winding cylinder is provided with burr-like strips in order to achieve a press fit or tolerance compensation for the laminated core when the core sheets are inserted.
- such a transformer coil with a rectangular cross section cannot be used, for example, in rotationally symmetrical transformers, in particular in rotary transformers. In such applications, it is also desirable to widen the core outside the coil flanges in the radial direction in order to better close the iron circuit.
- the core can neither be layered as a laminated core, nor can it be introduced in one piece into the coil former.
- the winding support points cannot be provided next to one another on the coil flange as in the known coil.
- DE-A-2 208 457 shows a winding body for transformers which, because of its rectangular cross section, is not suitable for a rotary transformer. In the case of a rotationally symmetrical core with iron flanges, the adjacent winding support points on the bobbin flange would also interfere.
- US-A-4 166 265 generally shows a bobbin with winding support points which are arranged in the form of wires or pins in a flange. Because of the rectangular cross-section and because of the winding support points lying next to one another, this coil former would also be out of the question for a rotary transformer.
- the object of the invention is to design a transformer coil of the type mentioned with a rotationally symmetrical and enlarged at the outer ends in cross-section, which is particularly suitable for use as a rotor of a rotary transformer, so that the manufacture and winding of the coil body and also the assembly of the core can be made simple and inexpensive.
- a bobbin makes it possible, for example, to insert a two-part slotted, sleeve-shaped core from the two ends into the bobbin and to align the slots in each case on the longitudinal rib of the bobbin.
- these winding support points can be provided on a rib-shaped extension of the longitudinal rib, this extension coming to rest in a radial recess in the core, which is expanded outside the coil to form an iron flange.
- two or more winding support points on the coil flange are expediently arranged one above the other in the radial direction in order to obtain good insulation for the applied winding ends even in a narrow slot in the iron flange.
- the winding bases themselves can be on be formed on the coil flange or on the rib-shaped extension in the form of two hook-shaped lugs.
- the winding axes of the two winding support points form such an angle with respect to one another that the winding movement of the wire on one winding support point does not touch the other winding support point.
- the angle required for this can be determined in individual cases on the basis of the size relationships of the coil flange and the winding support points.
- the winding support points have grooves which are recessed at least on one side, as a result of which the distance between the wound winding ends and a slotted iron core is also increased. It would also be beneficial to fix the winding ends in recessed grooves all around, but in general the one-sided groove is easier to manufacture using tools. Furthermore, it is expedient that the coil flange carrying the winding support points is radially slotted next to these winding support points and thus enables the wire to enter the winding start.
- winding support points can also be embedded in the form of wires in the end of the longitudinal rib or in the extension thereof.
- further metal inserts can also be embedded in the longitudinal rib or inserted subsequently, for example in order to achieve a phase shift in a transformer.
- a bobbin 1 which preferably consists of elastic, temperature-resistant, thermoplastic insulating material.
- the winding 3 which is only indicated, is applied to the coil tube 2 and is delimited by the flanges 4 and 5 at both ends of the coil body.
- the core bore 6 serves to receive an iron core, as is shown, for example, in FIG. 4.
- the bobbin has a longitudinal rib 7 in the bore 6, which extends beyond the flange 4 into a rib-shaped extension 8 and forms two hook-shaped winding support points 9 and 10. This makes it possible to use a core with an iron flange overlapping the coil flange 4 if it has a slot for receiving the rib-shaped extension 8.
- This slot can be relatively narrow, since the winding support points 9 and 10 are arranged radially one above the other in a line. This means that coils that are to accommodate a core with iron flanges can also be wound quickly and inexpensively, since very thin untwisted winding ends can be wound quickly at the winding support points 9 and 10, and the binding and knotting of the winding ends previously required in such coils is eliminated. In addition, due to the lack of the tying knots, there is a considerable gain in changing space.
- the coil flange 4 has a slot 12 for the wire entry of the winding start 11, the slot edges are also rounded, and an inlet bevel 13 is formed on the coil flange with a small angle y.
- the winding end 14 is in turn guided through the slot 12 of the coil flange 4 onto the winding base 10.
- Both winding support points 9 and 10 are inclined with respect to one another in their winding axis in such a way that when winding onto one support point the other does not hinder the looping movement of the wire.
- the angles of the winding plane ⁇ at the winding base 9 and 8 at the winding base 10 are chosen to be correspondingly large with respect to the end plane of the coil former, taking into account the distances between these two winding bases and the other dimensions.
- winding support points 9 and 10 secure the winding ends against slipping.
- these winding support points continue to have grooves 15 on one side, so that the applied winding ends can lie flush with the lateral surface of the winding support points.
- the winding support points could also be provided with grooves on all sides, but this would result in a more complicated tool design for the manufacture of the coil former.
- the coil flanges 4 and 5 are on the one hand tapered outwards for reasons of strength and shape, and on the other hand to facilitate mechanized winding and are rounded on the inside edges.
- FIGS. 4 and 5 show the application of the coil former from FIGS. 1 to 3 in a transformer, as is used, for example, in a rotary ring-less resolver.
- a two-part core is arranged in the coil former 1 with the winding 2, the two parts 16 and 17 of which are each inserted into the core bore from the coil ends.
- these core halves 16 and 17 are each sleeve-shaped and with their inner bore placed on a rotor shaft 18.
- these core halves are each formed into iron flanges 19 and 20, which extend in the radial direction next to the coil flanges and each form air gaps 25 with respect to the iron core 21 of a stator coil 22 (bearings are not shown).
- the core halves 16 and 17 including theirs Iron flanges 19 and 20 are continuously provided with a slot 23, by means of which they are aligned on the longitudinal rib 7 of the coil body 1.
- the slot 23 is expanded into a recess 24 in order to ensure a sufficient insulating distance from the wound winding ends of the coil 3.
- 6 to 10 show modified versions of the bobbin 1 in a schematic representation.
- 6 shows a bobbin 31 which has a chamber 33 in the longitudinal rib 32 which, for example, can accommodate short-circuiting pieces for phase shifting a transformer.
- Such metal parts can be subsequently inserted into the chamber 33 or embedded during the manufacture of the coil former.
- winding support points which also serve as soldering support points, can be provided, for example, on the invisible side of the opposite coil flange 34.
- FIG. 7 shows a coil former 41 with a longitudinal rib 42, in which two wire pieces 44 and 45 are embedded as winding support points in the region of the coil flange 43.
- the longitudinal rib 52 on the coil flange 53 has an extension 54 which also has embedded winding support points in the form of wires 55 and 56.
- the wires are arranged at an angle to one another such that the winding movement of the wire around one winding base does not hinder the other winding base.
- FIGS. 10 and 10 show in a further modification a bobbin 61, the longitudinal rib 62 of which forms two webs 63 and 64. These webs in turn form a chamber for inserts, such as short-circuit pieces or other metal inserts.
- these webs 63 and 64 each have extensions 65 and 66 which extend along the coil flange 67 in the radial direction. This means that inserts that have been unwound can be guided in isolation up to the outer diameter of the coil flange.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3127341 | 1981-07-10 | ||
DE3127341A DE3127341C2 (de) | 1981-07-10 | 1981-07-10 | Transformatorspule |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0069973A1 EP0069973A1 (fr) | 1983-01-19 |
EP0069973B1 true EP0069973B1 (fr) | 1985-11-13 |
Family
ID=6136635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82106040A Expired EP0069973B1 (fr) | 1981-07-10 | 1982-07-06 | Bobine de transformateur |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0069973B1 (fr) |
DE (2) | DE3127341C2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5315280A (en) * | 1991-06-21 | 1994-05-24 | Motorola Lighting, Inc. | Bobbin for electrical windings |
CN111344829B (zh) * | 2017-11-21 | 2022-11-22 | 三菱电机株式会社 | 起动器用电磁开关装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1539679B2 (de) * | 1966-03-25 | 1973-09-13 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Spulenkörper aus Kunststoff |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1779490U (de) * | 1958-03-01 | 1958-12-18 | Standard Elektrik Lorenz Ag | Spule mit massekern. |
DE1942992U (de) * | 1966-03-15 | 1966-07-28 | Licentia Gmbh | Spulenkoerper fuer gekapselte spulen. |
DE1790110C3 (de) * | 1968-09-12 | 1975-06-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Anordnung zur Halterung von Anschlu Bläschen für Steckanschlüsse an Kunststoffteilen elektrischer Geräte |
DE1919729A1 (de) * | 1969-04-18 | 1970-11-05 | Rau Swf Autozubehoer | Spulenkoerper fuer Relais,Warnsummer od.dgl. |
DE2208457A1 (de) * | 1972-02-23 | 1973-08-30 | Loewe Opta Gmbh | Wickelkoerper fuer transformatoren |
DE2236241A1 (de) * | 1972-07-24 | 1974-02-07 | Siemens Ag | Spulenkoerper |
DE2330301C3 (de) * | 1973-06-14 | 1979-01-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zum Einstellen der Zugentlastung von Spulendrahtenden von Spulen, insbesondere für elektromagnetische Relais |
DE2717081A1 (de) * | 1977-04-18 | 1978-11-09 | Bbc Brown Boveri & Cie | Spulenkoerper |
US4166265A (en) * | 1978-02-03 | 1979-08-28 | Amp Incorporated | Coil bobbins and termination of coil windings |
-
1981
- 1981-07-10 DE DE3127341A patent/DE3127341C2/de not_active Expired
-
1982
- 1982-07-06 EP EP82106040A patent/EP0069973B1/fr not_active Expired
- 1982-07-06 DE DE8282106040T patent/DE3267408D1/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1539679B2 (de) * | 1966-03-25 | 1973-09-13 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Spulenkörper aus Kunststoff |
Also Published As
Publication number | Publication date |
---|---|
DE3127341A1 (de) | 1983-01-27 |
EP0069973A1 (fr) | 1983-01-19 |
DE3267408D1 (de) | 1985-12-19 |
DE3127341C2 (de) | 1983-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3207499C2 (de) | Transformator | |
EP1597739B1 (fr) | Element isolant, noyau toroidal, bobine de choc a noyau toroidal et procede de production d'une bobine de choc a noyau toroidal | |
DE2437691A1 (de) | Verfahren zur herstellung einer isolierten feldspule fuer eine dynamoelektrische maschine | |
DE102004054277A1 (de) | Rotoranordnung für eine elektrische Maschine und Verfahren zur Herstellung einer Rotoranordnung | |
EP2181493B1 (fr) | Corps de bobine pour un stator de moteur linéaire pour une porte automatique | |
EP0793243A1 (fr) | Transformateur | |
EP0872005B1 (fr) | Lamelle pour machines electrodynamiques | |
EP0069973B1 (fr) | Bobine de transformateur | |
DE2233005C3 (de) | Spulenkörper-Baueinheit | |
EP1315183B1 (fr) | Enroulement pour un transformateur ou une inductance | |
DE4105969C2 (fr) | ||
DE3506354C1 (de) | Elektromagnetisches Relais mit Isolierkappe und Verfahren zur Herstellung der Isolierkappe | |
EP1073180B1 (fr) | Isolation entre un paquet de tôles avec encoches et un enroulement avec têtes d'enroulement formé dans ces encoches | |
DE2503691A1 (de) | Ringkernwandler | |
DE3022070C2 (de) | Schirmkörper für bewickelte Kernschenkel von Transformatoren, Drosselspulen u.dgl. | |
WO1992009092A1 (fr) | Armature de bobine, en particulier pour petits transformateurs et transformateurs de securite | |
EP1222730A1 (fr) | Procede pour produire une bande | |
DE1614321C3 (de) | Elektrische Spule | |
DE1810490C (de) | Linearmotor | |
DE2037034A1 (de) | Isolationskörper zum Isolieren des Feldpaketes eines Elektromotors | |
DE3629050A1 (de) | Stator fuer einen elektro-aussenlaeufermotor mit nutabdeckungen | |
CH534966A (de) | Kontaktstück zum lötfreien Anschliessen eines isolierten, elektrischen Leiters und Verwendung desselben | |
DE2837351C2 (de) | Spulenkörper für die Statorwicklung einer kleinen elektrischen Maschine | |
DE2328227A1 (de) | Auf einen spulenkoerper gewickelte spule | |
CH528169A (de) | Isolationskörper zum Isolieren des Feldspulenpaketes an einem Elektromotor |
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 |
Designated state(s): CH DE FR GB IT LI SE |
|
17P | Request for examination filed |
Effective date: 19830513 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
ITF | It: translation for a ep patent filed | ||
AK | Designated contracting states |
Designated state(s): CH DE FR GB IT LI SE |
|
REF | Corresponds to: |
Ref document number: 3267408 Country of ref document: DE Date of ref document: 19851219 |
|
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 | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19880706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19880707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19880731 Ref country code: CH Effective date: 19880731 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
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: 19890331 |
|
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: DE Effective date: 19890401 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
EUG | Se: european patent has lapsed |
Ref document number: 82106040.7 Effective date: 19890510 |