EP0949640B1 - Procédé perfectionné de fabrication de composants électroniques comportant un bobinage - Google Patents
Procédé perfectionné de fabrication de composants électroniques comportant un bobinage Download PDFInfo
- Publication number
- EP0949640B1 EP0949640B1 EP98106357A EP98106357A EP0949640B1 EP 0949640 B1 EP0949640 B1 EP 0949640B1 EP 98106357 A EP98106357 A EP 98106357A EP 98106357 A EP98106357 A EP 98106357A EP 0949640 B1 EP0949640 B1 EP 0949640B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- wire
- core
- air
- onto
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/082—Devices for guiding or positioning the winding material on the former
- H01F41/088—Devices for guiding or positioning the winding material on the former using revolving flyers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
- H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
Definitions
- the present invention relates to an improved method of manufacturing electronic components comprising a winding.
- Many electronic components include a coil formed from a generally ferrite core around which is wound a very fine wire, of a diameter on the order of a few hundredths of a millimeter.
- An electronic component designated as a whole by the reference general digital 1, includes a ferrite core 2 which is applied against a integrated circuit 4 by means of a mechanical holding device not shown in the Figure 1.
- a dispensing device carrying a reel on which a wire is wound winding 6 is brought into position in order to wind the core 2.
- the dispensing device moving longitudinally at core 2 and rotating around of it, allows regular laying in contiguous turns such as 8 of the wire 6 on the core 2.
- the wire 6 is cut and the distributor device is brought in front of the following ferrite core.
- the extremities free 12 and 14 of the wire 6 wound on the core 2 are then taken up by a device appropriate and applied to the contact pads such as 16 of the integrated circuit 4.
- Electronic coil components of the kind described above are especially employed in the watch industry and in the automobile industry where they are used in combination with coded vehicle immobilizers.
- the integrated circuit 4 and its associated coil 10 which forms the antenna receiving tubes are integrated into a tube 18 made of glass or a similar material as shown in Figure 2 appended to this application.
- Tube 18 is initially open at one end, and contains 20 epoxy resin thermosetting. After a centrifugation step which makes it possible to precipitate the electronic component 1 towards the bottom of the tube 18, this is conventionally sealed at using a high energy laser beam.
- the last step in the process is to polymerize the resin 20 by placing the sealed tube 18 in a baking oven.
- the tube 18 is then molded for example in the thickness of the handle of an ignition key for motor vehicle.
- the integrated circuit 4 contained in the tube 18 includes a identification code which is transmitted by radio frequency link to the management unit central vehicle electronics. After receipt of the identification and control code of its authenticity, the central unit controls the unlocking of the immobilizer system of the vehicle.
- the above process has advantageously made it possible to mechanize and to automate the manufacture of electronic components comprising a winding, thus contributing to a significant drop in the cost price of the finished coils.
- this new manufacturing process was accompanied significant electrostatic discharge problems.
- the turns 8 of wire 6 are wound on core 2 at high speed, typically of the order of 50,000 revolutions per minute.
- the turns 8 of the coil 10 rub against each other on the others, which leads to the appearance of electrostatic charges on the surface of the wire 6.
- the outer envelope of wire 6 being electrically insulated by means of a lacquer insulating so as not to create short circuits between the contiguous turns 8, the loads electrostatic accumulate in the coil 10 and can not be evacuated.
- the winding speeds involved in the scope of the present invention and in the Japanese document are very substantially different. Indeed, in the case of the present invention, the winding speed is very high (around 50,000 rpm), resulting in significant friction between the turns that generate a large number of electrostatic charges that we are looking for to eliminate.
- the Japanese patent relates to coils for transformers whose dimensions are important, and for which the winding speed is weaker, so that the winding of the wire is not accompanied by the creation of electrostatic charges. Therefore, the Japanese patent suggests at most install an air ionizer device upstream of the enclosure in which the coil is manufactured, and provides no solution to the problem posed by the present invention.
- the object of the present invention is to remedy the problems and drawbacks above by proposing a method of manufacturing windings making it possible to cancel the electrostatic charges which appear during winding of the turns.
- the present invention relates to a method of manufacturing electronic components comprising a winding, in which a device distributor carrying a reel on which is wound a winding wire lays the wire in contiguous and regular turns on a core, this process being characterized in that one forces the circulation of an ionized air flow on the winding during manufacture.
- the present invention provides a method of manufacturing in which the electrostatic charges which appear by friction turns on each other when winding a wire on a ferrite core are canceled by electric charges of opposite sign coming from ionized air produced by an air ionizer device.
- the wire winding becomes again electrically neutral, so that its free ends can be soldered to the contact pads of an integrated circuit without risk of destroying it by discharge electrostatic.
- the present invention also makes it possible to solve the very delicate problem control of the electrostatic charges of a moving device. Indeed, it seems difficult to envisage, given the extremely high speed of rotation high of the distributor carrying the reel on which the wire is wound, to connect this distributor to earth by means, for example, of an electrically conductive strand. Thanks to the present invention, it becomes possible to control without contact and without link fixes the electrostatic charge state of a winding manufacturing bench.
- the present invention also relates to an implementation device of the method according to the invention, comprising a reel on which is wound a wire winding and a distributor device which moves longitudinally to and in rotation around a core to allow regular laying according to contiguous turns of a winding on the core, characterized in that an air ionizer device arranged at the interior of a frame diffuses on the winding during the production of ionized air, the electric charges cancel the electrostatic charges of opposite sign induced by friction in said winding.
- the device for implementing the method according to the invention designated in its together by the general reference numeral 22 in Figure 3, includes a reel 24 on which the winding wire 6 is wound.
- This wire 6 penetrates through a opening 26 in a frame 28 inside which it is guided in translation by means a directional guide device 30.
- This guide device 30 is for example consisting of two felt pads such as 32 which guide and clean the wire 6 by friction. It should be noted that this first step of guiding and cleaning can constitute a source generating electrostatic charges in wire 6.
- the wire 6 is then taken up by a distributor device 34 in position above of the ferrite core 2.
- the distributor device 34 which moves longitudinally at the core 2 and rotating around it allows regular laying in contiguous turns 8 of wire 6 on core 2. After winding, wire 6 is cut and its free ends 12 and 14 will be applied by thermocompression on the contact pads 16 of the circuit integrated 4.
- an air ionizer device 36 is disposed inside the frame 28 in which it diffuses ionized air carrying charges electrics which cancel the induced electrostatic charges of opposite sign by friction in the wire 6. The latter thus becomes again electrically neutral and its free ends 12, 14 can be soldered to the contact pads 16 of the circuit integrated 4 without risk of destroying it by electrostatic discharge.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Description
- la figure 1, déjà citée, est une vue générale en perspective d'un bobinage utilisé comme composant d'un circuit intégré ;
- la figure 2, déjà citée, est une vue en perspective d'une variante d'application du circuit électronique de la figure 1, et
- la figure 3 est une vue schématique du dispositif de mise en oeuvre du procédé selon l'invention.
Claims (2)
- Procédé de fabrication de composants électroniques (1) comportant un bobinage (10), dans lequel un dispositif distributeur (34) portant un dévidoir (24) sur lequel est bobiné un fil de bobinage (6) pose le fil (6) en spires jointives (8) et régulières sur un noyau (2), ce procédé étant caractérisé en ce que l'on force la circulation d'un flux d'air ionisé sur le bobinage (10) lors du bobinage du fil.
- Dispositif de mise en oeuvre du procédé selon la revendication 1, comprenant un dévidoir (24) sur lequel est bobiné un fil de bobinage (6) et un dispositif distributeur (34) qui se déplace longitudinalement au noyau (2) et en rotation autour de celui-ci pour permettre une pose régulière selon des spires jointives (8) d'un bobinage (10) sur le noyau (2), caractérisé en ce que le dispositif comprend un bâti (28) et un dispositif ioniseur d'air (36) disposé à l'intérieur du bâti (28), le dispositif ioniseur d'air (36) diffusant sur le bobinage (10) lors du bobinage du fil de l'air ionisé dont les charges électriques viennent annuler les charges électrostatiques de signe opposé induites par frottement dans ledit bobinage (10).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98106357A EP0949640B1 (fr) | 1998-04-07 | 1998-04-07 | Procédé perfectionné de fabrication de composants électroniques comportant un bobinage |
DE69806725T DE69806725T2 (de) | 1998-04-07 | 1998-04-07 | Verfahren zur Herstellung von elektronischen Komponenten mit einer Spule |
AT98106357T ATE221248T1 (de) | 1998-04-07 | 1998-04-07 | Verfahren zur herstellung von elektronischen komponenten mit einer spule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98106357A EP0949640B1 (fr) | 1998-04-07 | 1998-04-07 | Procédé perfectionné de fabrication de composants électroniques comportant un bobinage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0949640A1 EP0949640A1 (fr) | 1999-10-13 |
EP0949640B1 true EP0949640B1 (fr) | 2002-07-24 |
Family
ID=8231734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98106357A Expired - Lifetime EP0949640B1 (fr) | 1998-04-07 | 1998-04-07 | Procédé perfectionné de fabrication de composants électroniques comportant un bobinage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0949640B1 (fr) |
AT (1) | ATE221248T1 (fr) |
DE (1) | DE69806725T2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105225825A (zh) * | 2015-09-12 | 2016-01-06 | 安徽互感器有限公司 | 一种铜线绕匝装置 |
DE102022125977A1 (de) | 2021-10-07 | 2023-04-13 | Axing Ag | Wickelgut für elektronische Schaltungen bzw. Baugruppen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56108663A (en) * | 1980-01-29 | 1981-08-28 | Mitsubishi Electric Corp | Method to wind coil |
JPS5791235A (en) * | 1980-11-28 | 1982-06-07 | Hitachi Cable Ltd | Manufacture of rubber of plastic tape |
EP0432239B1 (fr) * | 1989-07-03 | 1994-08-03 | Sokymat S.A. | Procede de fabrication de composants electroniques comportant un bobinage en fil fin |
-
1998
- 1998-04-07 EP EP98106357A patent/EP0949640B1/fr not_active Expired - Lifetime
- 1998-04-07 AT AT98106357T patent/ATE221248T1/de not_active IP Right Cessation
- 1998-04-07 DE DE69806725T patent/DE69806725T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE221248T1 (de) | 2002-08-15 |
DE69806725D1 (de) | 2002-08-29 |
DE69806725T2 (de) | 2009-09-24 |
EP0949640A1 (fr) | 1999-10-13 |
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