EP0228964A1 - Elektromagnet mit konzentrischen Ringspulen - Google Patents

Elektromagnet mit konzentrischen Ringspulen Download PDF

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Publication number
EP0228964A1
EP0228964A1 EP86402884A EP86402884A EP0228964A1 EP 0228964 A1 EP0228964 A1 EP 0228964A1 EP 86402884 A EP86402884 A EP 86402884A EP 86402884 A EP86402884 A EP 86402884A EP 0228964 A1 EP0228964 A1 EP 0228964A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
face
coils
electromagnet
yoke
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
EP86402884A
Other languages
English (en)
French (fr)
Other versions
EP0228964B1 (de
Inventor
Pol Baptiste Louis Ducrot
Jean-Paul Cloup
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0228964A1 publication Critical patent/EP0228964A1/de
Application granted granted Critical
Publication of EP0228964B1 publication Critical patent/EP0228964B1/de
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
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Definitions

  • the present invention relates to an electromagnet and more particularly to a fast electromagnet with concentric O-rings.
  • the intrinsic power of an electromagnet is summed up by its ability to accelerate the mass of its moving part.
  • a is the acceleration in ms2, F the force exerted in newtons, m the mass of the mobile part in Kg, ⁇ the density in Kg / m3 and V the volume of the mobile part in m3, we have: B being the Tesla induction, s the contact surface between the fixed part and the mobile part and ⁇ the relative permeability of the vacuum.
  • B being the Tesla induction, s the contact surface between the fixed part and the mobile part and ⁇ the relative permeability of the vacuum.
  • the electromagnet according to the invention is of the type in which the working faces of the two coils are substantially coplanar and in which the coils are arranged in housings of the yoke of a magnetic circuit whose movable non-laminated element is movable parallel to the axis of the coils, and the face of the cylinder head located on the side of the air gap having a frustoconical cavity, and the mobile element having on the air gap side a frustoconical face complementary to that of the cylinder head.
  • the electromagnet according to the invention is characterized in that the face of the movable element opposite the air gap is preferably in the form of a stepped cavity so that the volumes of this element traversed by the magnetic flux have , for each coil, trapezoidal axial sections.
  • the cylinder head can be laminated radially. This lamination can be achieved by stacking sheets cut according to n + 1 profiles for an electromagnet with n coils and arranged so as to optimize the expansion.
  • the stack can comprise sheets having n slots, sheets having (n-1) slots and so on, sheets having a slot, and sheets not split, these various sheets being superposed so as to form n clean annular passages. to house the coils.
  • the electromagnet according to the invention comprises a housing 1 which is fixed to a support 2 by screws 3 and has a central hub 4.
  • a laminated cylinder head designated as a whole by the reference 5.
  • This cylinder head is formed from the strips 6, 7 and 8 arranged radially side by side.
  • the strips 6 have a section in E ( Figure 3a) and therefore have two slots 9a and 9b ; they extend between the hub 4 and the internal peripheral wall of the housing 1.
  • the strips 7, each of which is adjacent to a strip 6, have a U-shaped section (FIG. 3 b ) and extend from the middle branch 6 of the strip 6 to the inner peripheral wall of the housing 1, their slots 10 thus being arranged facing the slots 9 b of the strips 6.
  • the strips 8, each of which is adjacent to a strip 7 have an approximately rectangular section and extend in front of the inner branch 7a of the strip 7.
  • Two concentric toroidal coils 11 and 12 connected to supply conductors 13 are arranged in the annular recesses formed by the succession of the different slots 9b -10 and 9a of the cylinder head 3, the whole being joined together by casting a material plastic, as indicated in 14.
  • the coils 11 and 12 are produced by continuous winding of a strip and are wound in opposite directions.
  • the outer face 5a of the cylinder head 5 is machined so as to form with the axis X-X of the electromagnet an angle preferably between 65 and 88 °.
  • a movable axis 14 having a cylindrical surface 15a.
  • a movable cup 16 is held in abutment on the bearing 15 ′ of the axis 15 and made integral with this axis by a spacer 17, a washer 18 and a nut 19.
  • the spacer 17 is recalled by an elastic washer 20 taking support from 'on the one hand on the spacer 17 and on the other hand on a washer 21 housed in the support 2.
  • a nut 22 concentric with the axis 15 is screwed on a cylindrical part 2a of the reminder 2.
  • the cup 16 has a concave frusto-conical face 16a which is turned towards the cylinder head 5 and the part located opposite this cylinder head makes with the axis XX the same angle as the face 5a of said cylinder head 5.
  • the opposite face 16 b is concave and of stepped shape so that the volumes of the cup traversed by the magnetic flux have for each coil, substantially trapezoidal axial sections and a height between 1 and 2.5 mm.
  • the cup 16 has in its center a bore 23 allowing it to center on the axis 15 and a bore 24 allowing it to bear on the cylindrical part 15a.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Particle Accelerators (AREA)
EP19860402884 1985-12-30 1986-12-22 Elektromagnet mit konzentrischen Ringspulen Expired - Lifetime EP0228964B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8519564A FR2592519B1 (fr) 1985-12-30 1985-12-30 Electro-aimant a bobines toriques concentriques
FR8519564 1985-12-30

Publications (2)

Publication Number Publication Date
EP0228964A1 true EP0228964A1 (de) 1987-07-15
EP0228964B1 EP0228964B1 (de) 1990-11-07

Family

ID=9326422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860402884 Expired - Lifetime EP0228964B1 (de) 1985-12-30 1986-12-22 Elektromagnet mit konzentrischen Ringspulen

Country Status (4)

Country Link
EP (1) EP0228964B1 (de)
JP (1) JPS62241305A (de)
DE (1) DE3675522D1 (de)
FR (1) FR2592519B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664087A1 (fr) * 1990-05-17 1992-01-03 Stiatti Vittorio Electro-aimant pour soupapes electro-magnetiques.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104517716A (zh) * 2014-09-15 2015-04-15 浙江鑫业电子科技有限公司 车用高速电磁铁的加工工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE261697C (de) *
FR951952A (fr) * 1947-08-09 1949-11-07 électro-aimant perfectionné à deux armatures
US3022449A (en) * 1956-12-21 1962-02-20 Cutler Hammer Inc Alternating current electromagnetic device
DE2110982A1 (de) * 1970-03-11 1971-09-30 Johann Biber Jun Elektromagnet
GB2098005A (en) * 1981-05-05 1982-11-10 Sulzer Ag A double-acting electromagnet device for controlling the movement of an injector valve of a fuel injector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE261697C (de) *
FR951952A (fr) * 1947-08-09 1949-11-07 électro-aimant perfectionné à deux armatures
US3022449A (en) * 1956-12-21 1962-02-20 Cutler Hammer Inc Alternating current electromagnetic device
DE2110982A1 (de) * 1970-03-11 1971-09-30 Johann Biber Jun Elektromagnet
GB2098005A (en) * 1981-05-05 1982-11-10 Sulzer Ag A double-acting electromagnet device for controlling the movement of an injector valve of a fuel injector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664087A1 (fr) * 1990-05-17 1992-01-03 Stiatti Vittorio Electro-aimant pour soupapes electro-magnetiques.
GR910100210A (el) * 1990-05-17 1992-07-30 Vittorio Stiatti Ηλεκτρομαγνητης για ηλεκτρομαγνητικες βαλβιδες.

Also Published As

Publication number Publication date
DE3675522D1 (de) 1990-12-13
EP0228964B1 (de) 1990-11-07
FR2592519B1 (fr) 1988-03-11
JPS62241305A (ja) 1987-10-22
FR2592519A1 (fr) 1987-07-03

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