EP0907190B1 - Composant inductif et son procédé de fabrication - Google Patents

Composant inductif et son procédé de fabrication Download PDF

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Publication number
EP0907190B1
EP0907190B1 EP98116940A EP98116940A EP0907190B1 EP 0907190 B1 EP0907190 B1 EP 0907190B1 EP 98116940 A EP98116940 A EP 98116940A EP 98116940 A EP98116940 A EP 98116940A EP 0907190 B1 EP0907190 B1 EP 0907190B1
Authority
EP
European Patent Office
Prior art keywords
core
plastic
inductive component
component according
flange
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
Application number
EP98116940A
Other languages
German (de)
English (en)
Other versions
EP0907190A2 (fr
EP0907190A3 (fr
Inventor
Peter Dr. Kranebitter
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.)
TDK Electronics AG
Original Assignee
Epcos AG
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 Epcos AG filed Critical Epcos AG
Publication of EP0907190A2 publication Critical patent/EP0907190A2/fr
Publication of EP0907190A3 publication Critical patent/EP0907190A3/fr
Application granted granted Critical
Publication of EP0907190B1 publication Critical patent/EP0907190B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F41/005—Impregnating or encapsulating
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support

Definitions

  • the present invention relates to an inductive component according to the preamble of claim 1 or 2 and a Method for producing such a component.
  • an inductive component from EP-A-0 315 527 is known according to the preamble of claim 1, in which to avoid a gap formation in hard Bump the two core halves together over the outer slug, as well as the bobbin with the core are glued.
  • an inductive component is known according to the preamble of claim 2, and is to be avoided a gap formation between the two core halves is known To provide the component with a plastic cap.
  • DE-A-30 40 334 is an inductive component with a magnetic core and a winding arranged on it known, in which the winding is glued directly to the core is.
  • the Carrier body can - which also applies in the following - just or be L-shaped, in which case the resilient bracket one leg of the L-shaped support body and the core of the unit Grips around core and winding body.
  • the plastic is in preferably by melting plastic flanges of the carrier body, which are inserted into the core, by means of melted a heating rod to then soften it thermoplastic towards the surface of the core press and then the plastic to solidify bring. If necessary, the plastic flanges on your Edge still have a nose that the plastic flanges snap onto the cores.
  • FIG. 1 and 2 show how a core 1 made of ferromagnetic Material on a carrier body 2 in the inventive inductive component is attached.
  • a so-called window core or double E core that in plan view (see FIG. 1) essentially square and has an opening bridged by a web.
  • Fig. 2 shows a section A-A through the inductive component of Fig. 1, this section in two different planes is guided: it initially runs through two slit-shaped Holes 3 in core 1 and is then a little further back lying level around the central web of the core 1 make visible (see the corresponding dashed line).
  • the carrier body 2 consists of a thermoplastic plastic and has flanges 4 which are plate-like are and protrude into the corresponding holes 3 of the core 1 so that they got something from the opposite ends of this Protrude holes.
  • flanges 4 on their protruding Ends still be provided with lugs 5, as shown schematically in the left half of Fig. 2 is indicated in dashed lines.
  • lugs 5 are attached to the ends of both flanges 4. They are used to compensate for large geometrical tolerances of the individual cores 1 is advantageous because more of them "Material" for melting is available.
  • the noses 5 can extend over the entire length of the flanges 4 or only partially extend over this length.
  • the protruding ends of the flanges 4 are according to the invention by means of a heating rod not shown in the figures for Softening or melting brought so that they over expand the end of holes 3 as shown in the right Half of Fig. 2 is indicated by a broken line 6 to after it solidifies, the core 1 is fixed to the carrier body 2 connect to.
  • the noses 5 can be over the entire length of the flanges 4 (cf. left half of 4) or only via, for example, their end parts (cf. right half of Fig. 4) extend.
  • the protruding ends of the flanges 4 are by means of for example, heating rods heated to the thermoplastic Soften and melt plastic, so that this extends beyond the ends of the holes 3 or openings (see dashed line 6 in Fig. 2).
  • the plastic is then solidified, causing the core 1 to safely the support body 2 is fixed.
  • Typical dimensions for the cores 1 are, for example 24 x 24 x 4 or 28 x 28 x 5 or 35 x 35 x 8 (each mm).
  • thermoplastic Plastic a carrier body made of thermoplastic Plastic is used and that certain areas of this thermoplastic plastic for melting and Freeze brought to the core after freezing firmly with a carrier body or with the winding body firmly to connect the core. In the areas that are melting brought, will be “additional.” Material “offered, such as with the mentioned Noses 5 happens.
  • the carrier bodies 2 need not be cuboid. she can - as already mentioned - for example L-shaped, with the flanges 4 on one leg and the electrical feed pins 9 on the other Legs of the "L" are attached.

Landscapes

  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulating Of Coils (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Testing Of Coins (AREA)
  • Filters And Equalizers (AREA)
  • Thermistors And Varistors (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (9)

  1. Composant inductif ayant un noyau (1) en matériau ferromagnétique et une pièce (7) d'enroulement destinée à recevoir des enroulements conducteurs de l'électricité, dans lequel la pièce (7) d'enroulement et le noyau (1) peuvent être montés à l'état assemblé en une unité,
       caractérisé en ce que le corps (7) d'enroulement adhère au noyau (1) par fusion (8) de matière plastique.
  2. Composé inductif ayant un noyau (1) en matériau ferromagnétique une pièce (7) d'enroulement destinée à recevoir des enroulements conducteurs de l'électricité et une pièce (2) formant support, dans lequel la pièce (7) d'enroulement et le noyau (1) peuvent être montés à l'état assemblé en une unité,
       caractérisé en ce que le noyau (1) est fixé sur la pièce (2) formant support par fusion de matière plastique (6).
  3. Composant inductif suivant la revendication 2, caractérisé en ce que le noyau (1) est fixé sur la pièce (2) formant support par fusion de brides (4) en matière plastique.
  4. Composant inductif suivant la revendication 3, caractérisé par un bec (5) au bord de la bride (4) en matière plastique.
  5. Composant inductif suivant l'une des revendications 2 à 4, caractérisé en ce que la pièce (2) formant support est en matière plastique thermoplastique.
  6. Composant inductif suivant la revendication 4, caractérisé en ce que le bec (5) s'étend au moins en partie sur la longueur de la bride (4).
  7. Composant inductif suivant la revendication 3, caractérisé en ce que les brides sont introduites dans des ouvertures ou dans des fentes (3) séparées du noyau (1).
  8. Procédé pour la fabrication d'un composant inductif suivant l'une des revendications 2 à 7, caractérisé en ce que l'on met un noyau (1) ayant une pièce (7) d'enroulement et des enroulements conducteurs de l'électricité sur une pièce (2) formant support, en ce que l'on chauffe des extrémités, en saillie du noyau, d'une bride (4) du corps de la pièce (2) formant support pour faire fondre la matière plastique thermoplastique des extrémités de la bride (4) et en ce que l'on presse la matière plastique thermoplastique ramollie sur la surface du noyau (1) et l'on fait se solidifier la matière plastique thermoplastique ramollie.
  9. Procédé de fabrication d'un composant inductif suivant la revendication 1, caractérisé en ce que l'on fait fondre l'excès (8) de matière plastique par un barreau de chauffage.
EP98116940A 1997-09-29 1998-09-05 Composant inductif et son procédé de fabrication Expired - Lifetime EP0907190B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742928 1997-09-29
DE19742928 1997-09-29

Publications (3)

Publication Number Publication Date
EP0907190A2 EP0907190A2 (fr) 1999-04-07
EP0907190A3 EP0907190A3 (fr) 2000-07-12
EP0907190B1 true EP0907190B1 (fr) 2002-06-19

Family

ID=7843975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116940A Expired - Lifetime EP0907190B1 (fr) 1997-09-29 1998-09-05 Composant inductif et son procédé de fabrication

Country Status (7)

Country Link
EP (1) EP0907190B1 (fr)
JP (1) JPH11168012A (fr)
AT (1) ATE219601T1 (fr)
DE (1) DE59804488D1 (fr)
DK (1) DK0907190T3 (fr)
ES (1) ES2179407T3 (fr)
PT (1) PT907190E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113035510A (zh) * 2021-05-26 2021-06-25 广东力王高新科技股份有限公司 一种装配维修方便的卤素灯预热电子变压器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100664898B1 (ko) 2005-09-08 2007-01-04 주식회사 효성 부분 공극을 갖는 변압기/리액터

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040334A1 (de) * 1980-10-25 1982-05-27 Draloric Electronic GmbH, 8500 Nürnberg Stabkerndrossel
FR2622732B1 (fr) * 1987-11-03 1990-08-03 Orega Electro Mecanique Transformateur a circuit magnetique en ferrite resistant aux chocs thermiques
DE9010132U1 (de) * 1990-07-04 1990-09-06 Siemens AG, 1000 Berlin und 8000 München Spule mit E-Kern aus Ferritmaterial
FR2674674B1 (fr) * 1991-03-27 1993-10-22 Merlin Gerin Transformateur homopolaire a circuit magnetique insensible a des contraintes mecaniques, et procede de fabrication.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113035510A (zh) * 2021-05-26 2021-06-25 广东力王高新科技股份有限公司 一种装配维修方便的卤素灯预热电子变压器
CN113035510B (zh) * 2021-05-26 2021-08-13 广东力王高新科技股份有限公司 一种装配维修方便的卤素灯预热电子变压器

Also Published As

Publication number Publication date
EP0907190A2 (fr) 1999-04-07
DK0907190T3 (da) 2002-10-14
ES2179407T3 (es) 2003-01-16
DE59804488D1 (de) 2002-07-25
ATE219601T1 (de) 2002-07-15
JPH11168012A (ja) 1999-06-22
EP0907190A3 (fr) 2000-07-12
PT907190E (pt) 2002-11-29

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