JPS5723206A - Magnetic shielding material - Google Patents

Magnetic shielding material

Info

Publication number
JPS5723206A
JPS5723206A JP7402980A JP7402980A JPS5723206A JP S5723206 A JPS5723206 A JP S5723206A JP 7402980 A JP7402980 A JP 7402980A JP 7402980 A JP7402980 A JP 7402980A JP S5723206 A JPS5723206 A JP S5723206A
Authority
JP
Japan
Prior art keywords
magnetic
shielding material
density
magnetic shielding
permeability
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.)
Pending
Application number
JP7402980A
Other languages
Japanese (ja)
Inventor
Minoru Hanazaki
Yoshiyuki Yasojima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7402980A priority Critical patent/JPS5723206A/en
Publication of JPS5723206A publication Critical patent/JPS5723206A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

PURPOSE:To enable manufacture of a low-priced, small-sized and light-weighted magnetic shielding material by a method wherein the outer surface of the magnetic shielding material is consisted of a magnetic substance having both high permeability and high staturation magnetic flux density or the substance having either of them. CONSTITUTION:The permeability and the saturation magnetic density are varied between the outer surface 5 and the inner surface 6 of the magnetic shielding material 2. The outer surface 5 is consisted of the magnetic plate 6a having both high permeability and high saturation magnetic density or one having either of them. Accordingly, the greater part of the leakage flux 4 penetrated into the shielding material 2 is absorbed and guided efficiently by either of the magnetic plate having high permeability and saturation magnetic density or one having either of them and a sufficient shielding effect can be obtained even when the shielding material is lowered itself. Through these procedures, the magnetic flux irradiated on the outer surface is absorbed and guided efficiently, thereby enabling to obtain a low-priced, small-sized and light-weighted magnetic shielding material.
JP7402980A 1980-06-02 1980-06-02 Magnetic shielding material Pending JPS5723206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7402980A JPS5723206A (en) 1980-06-02 1980-06-02 Magnetic shielding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7402980A JPS5723206A (en) 1980-06-02 1980-06-02 Magnetic shielding material

Publications (1)

Publication Number Publication Date
JPS5723206A true JPS5723206A (en) 1982-02-06

Family

ID=13535296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7402980A Pending JPS5723206A (en) 1980-06-02 1980-06-02 Magnetic shielding material

Country Status (1)

Country Link
JP (1) JPS5723206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111205U (en) * 1983-12-28 1985-07-27 アルパイン株式会社 Movement amount detection device
JPH02133704U (en) * 1989-04-14 1990-11-06

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146639U (en) * 1974-09-17 1976-04-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146639U (en) * 1974-09-17 1976-04-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111205U (en) * 1983-12-28 1985-07-27 アルパイン株式会社 Movement amount detection device
JPH02133704U (en) * 1989-04-14 1990-11-06

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