EP2237292A3 - Symmetrical induction coils, in particular for proximity sensors - Google Patents

Symmetrical induction coils, in particular for proximity sensors Download PDF

Info

Publication number
EP2237292A3
EP2237292A3 EP10354015A EP10354015A EP2237292A3 EP 2237292 A3 EP2237292 A3 EP 2237292A3 EP 10354015 A EP10354015 A EP 10354015A EP 10354015 A EP10354015 A EP 10354015A EP 2237292 A3 EP2237292 A3 EP 2237292A3
Authority
EP
European Patent Office
Prior art keywords
winding
coil
proximity sensors
induction coils
winding ends
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.)
Granted
Application number
EP10354015A
Other languages
German (de)
French (fr)
Other versions
EP2237292B1 (en
EP2237292A2 (en
Inventor
Roger Franchino
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP2237292A2 publication Critical patent/EP2237292A2/en
Publication of EP2237292A3 publication Critical patent/EP2237292A3/en
Application granted granted Critical
Publication of EP2237292B1 publication Critical patent/EP2237292B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01F41/086—Devices for guiding or positioning the winding material on the former in a special configuration on the former, e.g. orthocyclic coils or open mesh coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

The coil (20) has a front face (28) and an opposite face including a package of conductive wires (22) between winding ends (26A, 26B) with superposition of internal winding layers (24i). The winding ends are located on an external winding layer (24n). The winding ends are located at a center of the coil between the front and opposite faces such that the external layer includes two symmetrical portions composed of equal number of wire turns wound in two opposite directions. Independent claims are also included for the following: (1) a proximity detection device comprising an electronic circuit for determining distance of a metallic object with respect to a frontal face of an induction coil (2) a method for fabrication of an induction coil.
EP10354015A 2009-04-03 2010-03-26 Symmetrical induction coils, in particular for proximity sensors Not-in-force EP2237292B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0901638A FR2944133A1 (en) 2009-04-03 2009-04-03 SYMMETRIC INDUCTOR, ESPECIALLY FOR PROXIMITY DETECTORS

Publications (3)

Publication Number Publication Date
EP2237292A2 EP2237292A2 (en) 2010-10-06
EP2237292A3 true EP2237292A3 (en) 2011-03-30
EP2237292B1 EP2237292B1 (en) 2012-05-09

Family

ID=41728028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10354015A Not-in-force EP2237292B1 (en) 2009-04-03 2010-03-26 Symmetrical induction coils, in particular for proximity sensors

Country Status (4)

Country Link
EP (1) EP2237292B1 (en)
AT (1) ATE557405T1 (en)
ES (1) ES2383511T3 (en)
FR (1) FR2944133A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089073A1 (en) * 2011-12-19 2013-06-20 Dunkermotoren Gmbh Method and device for producing a coil arrangement
CN113031085B (en) * 2020-08-28 2023-06-23 深圳大学 Construction method of metal foreign matter detection coil and metal foreign matter detection system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743853A (en) * 1972-01-10 1973-07-03 Electro Corp America Adjustable proximity sensor
US3996510A (en) * 1975-03-12 1976-12-07 General Electric Company Shielding arrangement for sensing the proximity of a metallic object
US4455528A (en) * 1980-07-30 1984-06-19 Siemens Aktiengesellschaft Oscillator coil sensing head for contactless inductive proximity switch
EP0455613A2 (en) * 1990-05-03 1991-11-06 Alessandro Dreoni Inductive proximity sensor and position transducer with a passive scale
WO2005098370A1 (en) * 2004-04-09 2005-10-20 Ksr International Co. Inductive position sensor
JP2007165757A (en) * 2005-12-16 2007-06-28 Goto Denshi Kk Dual winding coil, or winding equipment thereof, and winding method
DE202007003687U1 (en) * 2007-03-09 2008-07-10 Pepperl + Fuchs Gmbh Arrangement with housing, electronic components and potting compound

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743853A (en) * 1972-01-10 1973-07-03 Electro Corp America Adjustable proximity sensor
US3996510A (en) * 1975-03-12 1976-12-07 General Electric Company Shielding arrangement for sensing the proximity of a metallic object
US4455528A (en) * 1980-07-30 1984-06-19 Siemens Aktiengesellschaft Oscillator coil sensing head for contactless inductive proximity switch
EP0455613A2 (en) * 1990-05-03 1991-11-06 Alessandro Dreoni Inductive proximity sensor and position transducer with a passive scale
WO2005098370A1 (en) * 2004-04-09 2005-10-20 Ksr International Co. Inductive position sensor
JP2007165757A (en) * 2005-12-16 2007-06-28 Goto Denshi Kk Dual winding coil, or winding equipment thereof, and winding method
DE202007003687U1 (en) * 2007-03-09 2008-07-10 Pepperl + Fuchs Gmbh Arrangement with housing, electronic components and potting compound

Also Published As

Publication number Publication date
EP2237292B1 (en) 2012-05-09
FR2944133A1 (en) 2010-10-08
ATE557405T1 (en) 2012-05-15
EP2237292A2 (en) 2010-10-06
ES2383511T3 (en) 2012-06-21

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