WO2005052963A2 - Induktives miniatur-bauelement für smd-montage - Google Patents
Induktives miniatur-bauelement für smd-montage Download PDFInfo
- Publication number
- WO2005052963A2 WO2005052963A2 PCT/DE2004/002294 DE2004002294W WO2005052963A2 WO 2005052963 A2 WO2005052963 A2 WO 2005052963A2 DE 2004002294 W DE2004002294 W DE 2004002294W WO 2005052963 A2 WO2005052963 A2 WO 2005052963A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ferrite core
- component according
- frame
- miniature component
- miniature
- Prior art date
Links
- 230000001939 inductive effect Effects 0.000 title claims abstract description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- 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
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
-
- 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
Definitions
- the invention relates to an inductive miniature component for SMD assembly with a one-piece ferrite core, the length of which is greater than its width, and with at least one coil winding applied directly to the ferrite core, with electrical connecting elements and with connecting flanges arranged on both ends of the ferrite core.
- Such a component is known per se and is described, for example, in DE-U 298 24 118.8.
- the flanges consist of ferrite material and are integrally connected to the ferrite core.
- the result of such a design is that if components of different lengths have to be provided, one for each component to be provided relative due to the design of the flanges complicated injection mold must be manufactured and kept ready.
- the invention has for its object to provide an inductive miniature component for SMD assembly with the features specified above and in the preamble of protection claim 1, in which different embodiments, in particular components of different lengths, can be kept ready with much less manufacturing effort.
- each of the two flanges is designed as a plastic part which is plugged onto the ferrite core and is firmly connected to it.
- a basic idea of the present invention is to design the ferrite core and the flanges arranged on it as separate components, the flanges being designed as plastic parts to be plugged onto the ferrite core and then firmly connected to it.
- This design has the consequence that for components of different lengths, the length being given by the length of the ferrite core, only simple ferrite cores of different lengths can be produced in different shapes, while the flanges to be attached are the same in all embodiments of the component, so that only one injection mold has to be kept available for each of these flanges. It has been shown that the manufacturing effort and the effort in warehousing can be considerably reduced by this design.
- the flanges each have a frame which is provided with an insertion or push-through opening for the ferrite core which is adapted to the cross section of the ferrite core, the ferrite core being able to be designed, for example, as a rectangular cross section ,
- the construction of the component according to the invention has the further particular advantage that the connection elements for the winding ends and for the connection of the entire component to the conductor tracks of a printed circuit board can be arranged on the flanges, which in this case are also different for all embodiments of components Length can be the same. Such embodiments are described below and in claims 8 to 15.
- a plate or an adhesive point with a flat surface can be arranged on the top of the component to form a suction surface, so that the component can be picked up by an automatic placement machine.
- the component When using relatively long and thin ferrite cores for the component, it has also proven to be advantageous if the component is designed as described, for example, in DE-U-203 00 713.1. Such a component configured in the manner according to the invention is described in claim 17.
- FIG. 1 shows a miniature component designed as an antenna coil in a side view with the coil winding shown partly in section;
- FIG. 2 in a representation analogous to Figure 1, the component of Figure 1 in supervision.
- FIGS. 1 and 2 shows the component according to FIGS. 1 and 2 in a view of the narrow side on the left in FIGS. 1 and 2;
- FIG. 4 in a view analogous to FIG. 1, a variant of the miniature component according to FIG. 1; 5 shows the component according to FIG. 4 in supervision;
- FIGS. 4 and 5 shows the component according to FIGS. 4 and 5 in a view of the narrow side on the left in FIGS. 4 and 5;
- FIGS. 1 to 6 shows another embodiment of a flange for a miniature component according to FIGS. 1 to 6 in a side view
- FIG. 8 shows the flange according to FIG. 7 in a view from above;
- FIGS. 7 and 8 show the flange according to FIGS. 7 and 8 in a view of the outside;
- FIG. 10 shows a variant of the flange according to FIG. 7 in a representation analogous to FIG. 7;
- FIG. 11 shows the flange according to FIG. 10 in a view from above;
- Fig. 12 shows the flange of FIGS. 10 and 11 in a view of the outside.
- the antenna coil shown in FIGS. 1 to 3 has a ferrite core 1 with a rectangular cross section, on both ends of which flanges 3 and 4 are attached and connected to the ferrite core 1 by gluing.
- the flanges 3 and 4 are designed in the same way.
- the flanges have a frame 3.1 or 4.1 which is essentially rectangular in outer cross section and which is provided with a rectangular through-opening 3.2 or 4.2 adapted to the rectangular cross section of the ferrite core 1 and into which the ferrite core 1 is inserted in the axial direction.
- a plate or adhesive point 7 is applied directly to the winding 2, which has a flat surface to form a suction surface for an automatic placement machine.
- a coating 8 is arranged which extends in the longitudinal direction over a partial section of the length of the ferrite core and which consists of a material whose melting point is below the temperature at the component when the electrical connection elements are soldered occurs with the printed conductors of a printed circuit board in such a way that the coating material temporarily liquefies and, after flowing and re-solidifying, a connection between the component and the printed circuit board that stabilizes the ferrite core is produced.
- 4 to 6 show a variant of the component according to FIGS. 1 to 3, which differs from this component essentially in the design of the connecting elements. 4 to 6, all individual parts that correspond exactly to the embodiment according to FIGS. 1 to 3 are designated by the same reference number as there and are not described in detail below. Individual parts with changes are also designated with the same reference number as corresponding individual parts of FIGS. 1 to 3 and provided with an apostrophe.
- the flanges 3 'and 4' of the component according to FIGS. 4 to 6 differ from the flanges 3 and 4 of the component according to FIGS. 1 to 3 in that they have no metal rods.
- projections 3.41 ', 3.42' or 4.41 ', 4.42' are formed in the area of the lower ends of the side struts of the frames 3.1 'or 4.1' on the outer narrow side of the frames, each of one of the winding ends 2.1 ', 2.2' , 2.3 'of the coil winding 2 are included.
- These winding ends are soldered and, as can be seen in FIGS. 4 and 6, form directly connection elements which can be soldered to correspondingly designed elements of the circuit board, not shown.
- the component according to FIGS. 4 to 6 is constructed in exactly the same way as the component according to FIGS. 1 to 3.
- FIGS. 7 to 12 show other embodiments of flanges which can replace the flanges 3 and 4 or 3 'and 4' shown in FIGS. 1 to 6.
- flanges differ from the flanges described above in that the frame 14.1 or 14.1 'is not designed as a closed rectangular frame, but rather as a U-shaped frame which is open at the top.
- a ferrite core with a rectangular cross section can be inserted from above into the frame opening 14.2 or 14.2 '.
- metal strips 15.1 and 15.2 are used as connection elements, which are molded into the flange 14 and bent to the underside to form a connection element. The winding ends of the coil winding (not shown in these figures) are also connected to these metal strips 15.1 and 15.2.
- a projection 15' is formed in the lower region of the outer end face of the frame 14.1 ', around which the winding ends of a coil winding can be guided in a manner not shown and can be soldered there.
- the projection 15 ' has a cross section 15.1' tapering towards the outer end face of the frame 14.1 ', which has the effect that the winding of the projection with the winding ends of the coil winding is facilitated and these are held on the projection is.
- the mutual distance between the two flanges 3, 4; 3 ', 4'; 14 and 14 'before the fixed connection to the ferrite core can be changed within predetermined limits.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Multi-Conductor Connections (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04789996A EP1636809B1 (de) | 2003-11-21 | 2004-10-15 | Induktives miniatur-bauelement für smd-montage |
DE112004002707T DE112004002707D2 (de) | 2003-11-21 | 2004-10-15 | Induktives Miniatur-Bauelement für SMD-Montage |
DE502004002388T DE502004002388D1 (de) | 2003-11-21 | 2004-10-15 | Induktives miniatur-bauelement für smd-montage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20318052.6 | 2003-11-21 | ||
DE20318052U DE20318052U1 (de) | 2003-11-21 | 2003-11-21 | Induktives Miniatur-Bauelement für SMD-Montage |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005052963A2 true WO2005052963A2 (de) | 2005-06-09 |
WO2005052963A3 WO2005052963A3 (de) | 2005-07-21 |
Family
ID=31984732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/002294 WO2005052963A2 (de) | 2003-11-21 | 2004-10-15 | Induktives miniatur-bauelement für smd-montage |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1636809B1 (de) |
AT (1) | ATE349063T1 (de) |
DE (3) | DE20318052U1 (de) |
WO (1) | WO2005052963A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005019497U1 (de) * | 2005-12-14 | 2007-04-26 | Neosid Pemetzrieder Gmbh & Co Kg | Induktives Miniatur-Bauelement für SMD-Montage |
US7733283B2 (en) | 2007-10-16 | 2010-06-08 | Sumida Corporation | Antenna Device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005019496U1 (de) * | 2005-12-14 | 2007-04-26 | Neosid Pemetzrieder Gmbh & Co Kg | Induktives Miniatur-Bauelement für SMD-Montage |
JP2008085684A (ja) * | 2006-09-28 | 2008-04-10 | Sumida Corporation | アンテナ装置 |
DE102010006010B4 (de) * | 2010-01-27 | 2014-08-14 | Atmel Corp. | IC-Gehäuse |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4326358C1 (de) * | 1993-08-05 | 1994-11-24 | Siemens Audiologische Technik | Induktionsspule zur Verwendung als elektromagnetischer Induktionswandler (Hörspule) in elektrischen Hörhilfegeräten |
DE19523521A1 (de) * | 1995-06-30 | 1997-01-02 | Licentia Gmbh | Transponder-Drahtspule |
DE19607092A1 (de) * | 1996-02-24 | 1997-08-28 | Kaschke Kg Gmbh & Co | Antennenspule für Fahrbereitschaftssysteme |
DE29824118U1 (de) * | 1998-03-24 | 2000-06-08 | Neosid Pemetzrieder GmbH & Co KG, 58553 Halver | Induktives Miniatur-Bauelement für SMD-Montage |
EP1037304A2 (de) * | 1999-03-17 | 2000-09-20 | Kaschke KG GmbH & Co. | Antennenspule in Miniaturausführung, insbesondere für elektronische Fahrzeug-Schliesssysteme |
US20020190832A1 (en) * | 1996-11-29 | 2002-12-19 | Taiyo Yuden Co., Ltd. | Method of manufacturing wire wound electronic component |
DE20300713U1 (de) * | 2003-01-16 | 2003-03-27 | Neosid Pemetzrieder GmbH & Co KG, 58553 Halver | Induktives Miniatur-Bauelement für SMD-Montage |
DE10143708A1 (de) * | 2001-08-31 | 2003-04-03 | Kaschke Kg Gmbh & Co | Miniatur-Induktivität mit einem prismatischen, auf einen Kunststoffkörper aufgesetzten Ferritkern |
US20030156002A1 (en) * | 2002-02-21 | 2003-08-21 | Caramela Christopher Leonard | Electronic component |
-
2003
- 2003-11-21 DE DE20318052U patent/DE20318052U1/de not_active Expired - Lifetime
-
2004
- 2004-10-15 DE DE112004002707T patent/DE112004002707D2/de not_active Expired - Fee Related
- 2004-10-15 WO PCT/DE2004/002294 patent/WO2005052963A2/de active IP Right Grant
- 2004-10-15 AT AT04789996T patent/ATE349063T1/de not_active IP Right Cessation
- 2004-10-15 EP EP04789996A patent/EP1636809B1/de not_active Expired - Lifetime
- 2004-10-15 DE DE502004002388T patent/DE502004002388D1/de not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4326358C1 (de) * | 1993-08-05 | 1994-11-24 | Siemens Audiologische Technik | Induktionsspule zur Verwendung als elektromagnetischer Induktionswandler (Hörspule) in elektrischen Hörhilfegeräten |
DE19523521A1 (de) * | 1995-06-30 | 1997-01-02 | Licentia Gmbh | Transponder-Drahtspule |
DE19607092A1 (de) * | 1996-02-24 | 1997-08-28 | Kaschke Kg Gmbh & Co | Antennenspule für Fahrbereitschaftssysteme |
US20020190832A1 (en) * | 1996-11-29 | 2002-12-19 | Taiyo Yuden Co., Ltd. | Method of manufacturing wire wound electronic component |
DE29824118U1 (de) * | 1998-03-24 | 2000-06-08 | Neosid Pemetzrieder GmbH & Co KG, 58553 Halver | Induktives Miniatur-Bauelement für SMD-Montage |
EP1037304A2 (de) * | 1999-03-17 | 2000-09-20 | Kaschke KG GmbH & Co. | Antennenspule in Miniaturausführung, insbesondere für elektronische Fahrzeug-Schliesssysteme |
DE10143708A1 (de) * | 2001-08-31 | 2003-04-03 | Kaschke Kg Gmbh & Co | Miniatur-Induktivität mit einem prismatischen, auf einen Kunststoffkörper aufgesetzten Ferritkern |
US20030156002A1 (en) * | 2002-02-21 | 2003-08-21 | Caramela Christopher Leonard | Electronic component |
DE20300713U1 (de) * | 2003-01-16 | 2003-03-27 | Neosid Pemetzrieder GmbH & Co KG, 58553 Halver | Induktives Miniatur-Bauelement für SMD-Montage |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005019497U1 (de) * | 2005-12-14 | 2007-04-26 | Neosid Pemetzrieder Gmbh & Co Kg | Induktives Miniatur-Bauelement für SMD-Montage |
US7733283B2 (en) | 2007-10-16 | 2010-06-08 | Sumida Corporation | Antenna Device |
Also Published As
Publication number | Publication date |
---|---|
EP1636809A2 (de) | 2006-03-22 |
ATE349063T1 (de) | 2007-01-15 |
DE112004002707D2 (de) | 2006-11-30 |
DE20318052U1 (de) | 2004-03-04 |
DE502004002388D1 (de) | 2007-02-01 |
WO2005052963A3 (de) | 2005-07-21 |
EP1636809B1 (de) | 2006-12-20 |
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