EP0773563B1 - Spulenkörper mit zwei Wickelkammern - Google Patents
Spulenkörper mit zwei Wickelkammern Download PDFInfo
- Publication number
- EP0773563B1 EP0773563B1 EP96117286A EP96117286A EP0773563B1 EP 0773563 B1 EP0773563 B1 EP 0773563B1 EP 96117286 A EP96117286 A EP 96117286A EP 96117286 A EP96117286 A EP 96117286A EP 0773563 B1 EP0773563 B1 EP 0773563B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- coil former
- former according
- pin
- bases
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims description 72
- 238000005476 soldering Methods 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 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
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
Definitions
- the invention relates to a bobbin with a continuous Recess for receiving a core, with a die Recess-containing winding body, at its two ends extending in the transverse plane to the longitudinal axis of the recess Flanges are formed, with at least one flange a terminal block is formed, the at least four side by side solder connections arranged in a row for around the Winding body has wound winding wires.
- Such a coil former is known from DE 32 41 408 C2.
- solder connections for wrapping the ends of the Winding wires become soldering swords with an almost rectangular shape flat cross section used, the width of which is considerable is greater than its height.
- the wrapped ends of the winding wires are connected to the soldering swords by soldering.
- This soldering process occurs due to the high soldering temperature and the subsequent cooling changes in length of the winding wire which increase the tension in the winding wire, which affects the soldering quality and damage or tearing of the winding wire during operation can occur under fluctuating working temperatures.
- the known bobbin is wrapping one Automatic soldering swords with the winding wire Winding machine expensive because the winding wire is guided from the winding chamber to the soldering sword is complicated.
- the winding wire must be bent with a small radius of curvature, so that with tight winding wire guide the winding wire can break or tear off at the edges of the solder tails.
- Another disadvantage of the known coil body is that with a high current load of the winding wires this a relative must have a large diameter. Because of the flat Cross section can thicker the soldering swords when wrapping Winding wires can be bent slightly.
- solder connections as essentially cylindrical pins are formed in one plane perpendicular to the longitudinal axis projecting vertically from each other spaced bases are embedded that each base itself tapers on the side facing the assigned pin, and that on the side of the terminal block facing the recess Reinforcing ribs are formed.
- the solder connections are as essential cylindrical pins formed.
- the cylindrical shape allows tight wrapping of the pin with the end of a winding wire, without the risk of tearing or breaking of the winding wire on sharp edges.
- the cylindrical Pins can be made relatively solid, for example have a diameter of 1 mm. Accordingly, you can also thick winding wires under tight guidance around the pins be wound without bending them.
- the pins are embedded in spaced-apart sockets, which face on the assigned pin Taper side.
- the side surface tapering towards the pen the base causes the winding wire to be guided is possible without snagging.
- the bases made of insulating material serve also for deflecting the winding wires, so that a strain relief for the respective winding wire and the occurring during soldering due to the temperature differences Tensile stresses are absorbed.
- Reinforcement ribs are formed on the side of the terminal block. These reinforcing ribs increase the mechanical stability the terminal block. Since this is in one piece with the associated Flange is connected, its mechanical Stability and thus that of the entire bobbin improved.
- the Base of the terminal block a predetermined distance from the opposite side wall of the flange. Because of this At a distance, a guideway is created which leads through of the winding wire or the winding wires. In addition, the winding wires are insulated from the core.
- the flange carries at least one vertically towards the cylindrical pins protruding spacer, the end of which is the height of the am Pin of wound winding wire or the associated solder mass exceeds.
- This spacer is used to define a Make a distance to a printed circuit board so that the end of the soldered winding wire wound on the pin sufficient distance to through holes in the printed circuit board and blind soldering due to covered through holes cannot arise.
- connection strip has facing side wall of the flange recesses for the passage of the winding wire or the winding wires from Bobbin. Through these recesses there are separating openings created a crossing-free passage of the wires allow from the winding body to the terminal block.
- the bobbin 10 is made from one piece of plastic, preferably made of glass fiber reinforced polyamide. He has one continuous winding body 12 with a continuous recess 14 for receiving a core (not shown). At the At its ends, winding bodies 12 run in a transverse plane Flanges 16, 18 formed. On the winding body 12 are also two central flanges in the middle in planes perpendicular arranged to the longitudinal axis of the recess 14. The flanges 16, 18, 20, 22 axially limit two winding chambers 24, 26, which Take up windings (not shown).
- Terminal strips are on the two outer flanges 16 and 18, respectively 28 or 30 molded. Wear the terminal strips 28, 30 Pins 32, of which only one for a better overview is provided with the reference number 32.
- the pins 32 are on two terminal strips 28, 30 aligned along a straight line and have a substantially cylindrical shape.
- the Pins 32 are embedded in bases 34, of which only one is provided with the reference number 34.
- Pins 32 the terminal strips 28, 30 are perpendicular in one plane vertical to the longitudinal axis of the recess 14.
- Each base 34 has a square base and tapers towards of the pin 32.
- the side surfaces 36 of the base 34 are trapezoidal.
- the flanges 16, 18 have on the connection strips 28, 30 opposite side side walls 28, 40 at a distance of the bases 34. Due to the distance between the side walls 38, 40 a guideway for the winding wires.
- the side walls 38, 40 also have recesses 42, 44, which is a defined, crossing-free passage of the Winding wire or the winding wires from the winding chambers 24 or 26 to the terminal strips 28, 30 and the pins 32.
- Each flange 16, 18 has two in the direction parallel to the cylindrical Pins 32 vertically projecting spacers 46, the ends of which the respective height of the wound on the pins 32 Winding wires or the associated solder masses exceeds.
- the terminal strips 28, 30 have the recess 14 on their facing sides reinforcing ribs 48, which their mechanical Increase stability.
- the coil former 10 is made in one piece by the reinforcing ribs 48 the entire mechanical stability of the bobbin 10 improved.
- FIG 2 shows the bobbin 10 of Figure 1 with a wound Winding wire 50.
- the winding wire 50 is from the Winding chamber 24 via one of the separation openings 42 in the side wall 38 fed and deflected by two bases 34; then one end of the winding wire 50 is wrapped around the pin 32. Because of the sloping side surfaces 36 is hooking of the wire 50 even during automatic winding locked out. By deflecting the winding wire 50 um the two base 34, a strain relief is possible, which Catches tensile stresses due to the temperature change during soldering.
- FIG 3 is a schematic side view (the middle flanges 20, 22 have been omitted) to recognize how the Height of the spacers 46 is dimensioned.
- the ends 52 of the spacers 46 protrude the solder mass 54 of a wrapped Pin 32.
- the spacers 46 thus represent a defined one Distance to a printed board arranged on the pin side (not shown).
- the height of the respective spacer 46 is designed so that a wound on the pin 32 Sufficient winding wire 50 and the associated solder 54 Distance from the printed circuit board and the end of the winding wire 50 or the solder 54 not the through hole on the Plug the board into which the pin 32 is inserted. This prevents incorrect soldering.
- the pins 32 of both terminal strips 28, 30 run in levels parallel to the flanges 16, 18 and point into the same Direction. This makes it possible to remove the wound ends from Winding wires 50 on all pins 32 in a single soldering process, e.g. to be soldered by dip soldering.
- pins 28 are preferred have a pair of flattened side surfaces so that one Cylindrical shape is created, which is flattened on the side. Farther the cylindrical surface is corrugated. The in Transition area between flat side surface and cylinder surface resulting edge serves as a tear-off edge for the wound Winding wire.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Insulating Of Coils (AREA)
Description
- Figur 1
- eine perspektivische Ansicht des neuen Spulenkörpers mit zwei Wickelkammern,
- Figur 2
- eine schematische Ansicht des Spulenkörpers nach Figur 1 mit einem um einen Stift gewickelten Wickeldrahtende, und
- Figur 3
- eine schematische Seitenansicht des Spulenkörpers nach Figur 1.
Claims (11)
- Spulenkörper mit einer durchgehenden Ausnehmung (14) für die Aufnahme eines Kerns,
mit einem die Ausnehmung (14) enthaltenden Wickelkörper (12), an dessen beiden Enden in der Querebene zur Längsachse der Ausnehmung verlaufende Flansche (16, 18) ausgebildet sind, wobei an mindestens einem Flansch (16, 18) eine Anschlußleiste (28, 30) angeformt ist, die mindestens vier nebeneinander in einer Reihe angeordnete Lötanschlüsse (32) für um den Wickelkörper (12) gewickelte Wickeldrähte (50) hat,
dadurch gekennzeichnet, daß die Lötanschlüsse als im wesentlichen zylindrische Stifte (32) ausgebildet sind, die in einer Ebene senkrecht zur Längsachse vertikal abstehend in voneinander beabstandeten Sockeln (34) eingebettet sind,
daß jeder Sockel (34) sich auf der dem zugeordneten Stift (32) zugewandten Seite verjüngt,
und daß auf der der Ausnehmung (14) zugewandten Seite der Anschlußleiste Verstärkungsrippen (48) ausgebildet sind. - Spulenkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Sockel (34) der Anschlußleiste (28, 30) von der gegenüberliegenden Seitenwand (38, 40) des Flansches (16, 18) einen vorbestimmten Abstand haben, welcher zum Hindurchführen des Wickeldrahtes (50) oder der Wickeldrähte dient.
- Spulenkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Flansch (16, 18) mindestens einen in Richtung der zylindrischen Stifte (32) vertikal abstehenden Abstandhalter (46) trägt, dessen Ende die Höhe des am Stift (32) angewickelten Wickeldrahtes (50) bzw. der zugehörigen Lötmasse (54) übersteigt.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die der Anschlußleiste (28, 30) zugewandte Seitenwand (38, 40) des Flansches Ausnehmungen (42, 44) für das Hindurchführen des Wickeldrahtes (50) oder der Wickeldrähte vom Wickelkörper (12) hat.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die zylindrischen Stifte (32) einen Durchmesser von annähernd 1 mm haben.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder Stift (32) zwei parallele abgeflachte Seitenflächen hat, und daß die verbleibende teilzylindermantelförmige Oberfläche geriffelt ist.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wickelkörper (12) zwei Mittelflansche (20, 22) hat, welche seitliche Begrenzungen für Wickelspulen bilden.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er als Spritzgußteil ausgebildet ist.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß beide Flansche (16, 18) gleichartig aufgebaute Anschlußleisten (28, 30) haben, deren zylindrische Stifte (32) in parallelen Ebenen liegen.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder Wickeldraht (50) vor dem Umwickeln an mindestens zwei nebeneinanderliegende Sockel (34) umgelenkt ist.
- Spulenkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder Sockel (34) eine rechteckförmige Grundfläche mit in Richtung zum Stift (32) sich verjüngenden trapezförmigen Seitenflächen (36) hat.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19541446A DE19541446B4 (de) | 1995-11-07 | 1995-11-07 | Spulenkörper mit zwei Wickelkammern |
DE19541446 | 1995-11-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0773563A1 EP0773563A1 (de) | 1997-05-14 |
EP0773563B1 true EP0773563B1 (de) | 2000-06-07 |
Family
ID=7776822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96117286A Expired - Lifetime EP0773563B1 (de) | 1995-11-07 | 1996-10-28 | Spulenkörper mit zwei Wickelkammern |
Country Status (3)
Country | Link |
---|---|
US (1) | US5694105A (de) |
EP (1) | EP0773563B1 (de) |
DE (2) | DE19541446B4 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19829505B4 (de) * | 1998-07-02 | 2007-11-08 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Induktivität |
DE29913484U1 (de) * | 1999-08-02 | 2000-12-07 | Tridonic Bauelemente Ges.M.B.H., Dornbirn | Ringkörper zur Aufnahme von Wicklungen für Spulen oder Transformatoren |
TW463186B (en) * | 1999-09-29 | 2001-11-11 | Koninkl Philips Electronics Nv | Transformer |
DE10064488A1 (de) * | 2000-12-22 | 2002-06-27 | Bosch Gmbh Robert | Elektromagnet |
US7068136B2 (en) * | 2004-03-24 | 2006-06-27 | Osram Sylvania Inc. | Lead-in for electronic bobbins |
US7068137B2 (en) * | 2004-03-24 | 2006-06-27 | Osram Sylvania Inc. | Strain-relieving wire lead-in |
JP2005286188A (ja) * | 2004-03-30 | 2005-10-13 | Tamura Seisakusho Co Ltd | トランス |
DE102005030014B3 (de) * | 2005-06-17 | 2006-11-30 | Ismet Ag | Windungsseparierungselement zum Separieren von Windungen einer Spule, und zugehörige Spule, insbesondere Transformatorspule |
US7456717B2 (en) * | 2007-02-02 | 2008-11-25 | Astec International Limited | Electrical pin-type connector |
GB0806255D0 (en) * | 2008-04-07 | 2008-05-14 | Delphi Tech Inc | Mounting device for a coil |
DE202008012479U1 (de) | 2008-09-19 | 2010-02-11 | Weiner, René | Spulenkörper mit einer durchgehenden Ausnehmung zur Aufnahme eines Kerns |
DE102018119331B4 (de) * | 2018-08-08 | 2024-07-25 | Endress+Hauser Flowtec Ag | Herstellungsverfahren einer Spulenvorrichtung, Spulenvorrichtung, Messaufnehmer mit Spulenvorrichtung, Messgerät mit einem Messaufnehmer |
DE102018218042A1 (de) * | 2018-10-22 | 2020-04-23 | Würth Elektronik eiSos Gmbh & Co. KG | Kern für induktives Bauelement und induktives Bauelement |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3496505A (en) * | 1967-07-06 | 1970-02-17 | Arthur Johannsen | Transformer bobbins with means for mounting terminals thereon |
DE2208001A1 (de) * | 1972-02-21 | 1973-09-06 | Hohenloher Spulenkoerper | Spulenkoerper |
DE3040536C2 (de) * | 1980-10-28 | 1984-08-09 | Norbert 5275 Bergneustadt Weiner | Spulenkörper |
DE3241408A1 (de) * | 1982-11-09 | 1984-05-10 | Norbert 5275 Bergneustadt Weiner | Spulenkoerper |
US4503413A (en) * | 1982-12-09 | 1985-03-05 | Telefonbau Und Normalzeit Gmbh | Spool for transformer in power supply device |
JPS607114A (ja) * | 1983-06-26 | 1985-01-14 | Yusaku Shiba | トランス用コイルボビン |
DE3433700A1 (de) * | 1984-09-13 | 1986-03-20 | Siemens AG, 1000 Berlin und 8000 München | Wickelkoerper fuer einen elektrischen uebertrager |
JPS63175406A (ja) * | 1987-01-14 | 1988-07-19 | Fuji Kenkyusho:Kk | コイルボビン |
US5008644A (en) * | 1989-08-31 | 1991-04-16 | At&T Bell Laboratories | Terminal assembly for linear magnetic component bobbin |
-
1995
- 1995-11-07 DE DE19541446A patent/DE19541446B4/de not_active Expired - Lifetime
-
1996
- 1996-10-07 US US08/726,517 patent/US5694105A/en not_active Expired - Lifetime
- 1996-10-28 EP EP96117286A patent/EP0773563B1/de not_active Expired - Lifetime
- 1996-10-28 DE DE59605393T patent/DE59605393D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5694105A (en) | 1997-12-02 |
DE19541446A1 (de) | 1997-05-15 |
DE59605393D1 (de) | 2000-07-13 |
DE19541446B4 (de) | 2005-08-25 |
EP0773563A1 (de) | 1997-05-14 |
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