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US 5,270,675 AGranted
Highly conductive magnetic material
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsToshihiko Mori, Hikohiro Togane, Tonizo Minezaki
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Abstract
A highly conductive magnetic material useful for a magnet or a magnetic core for an electromagnet, obtained by molding copper or a copper alloy having ferrite dispersed therein.
Claims15
A highly conductive electromagnet comprising:
- a) a magnetic core obtained by molding copper or a copper alloy having 1-2 parts by weight of ferrite per part by weight of copper or copper alloy dispersed therein;
- and
- b) a conductive coil wound around an outer peripheral surface of said magnetic core.
A highly conductive magnetic relay comprising:
- i) a highly conductive electromagnet comprising:
- a) a conductor;
- b) a conductive, magnetic core obtained by molding copper or a copper alloy having 1-2 parts by weight of magnetically soft ferrite per part by weight of copper or copper alloy dispersed therein, wherein said conductor is attached to said conductive magnetic core;
- and
- c) a conductive coil wrapped around an outer peripheral surface of said conductive magnetic core;
- and
- ii) a highly conductive magnetic spring comprising:
- d) a highly conductive magnetic spring obtained by molding copper or a copper alloy having 1-2 parts by weight of magnetically hard ferrite per part by weight of copper or copper alloy dispersed therein, said conductive magnetic spring being located within the induced magnetic field of said highly conductive electromagnet and is capable of being attracted to and contacted with said electromagnet when a magnetic field is induced in said electromagnet;
- e) means for supporting said highly conductive magnetic spring;
- f) a second conductor, attached to said highly conductive magnetic spring;
- wherein when an electric current is applied to said conductive coil, said magnetic core becomes magnetized and attracts and contacts said conductive magnetic spring, thereby conductively connecting said conductors.
8 more elements
A highly conductive electromagnet comprising:
- a) a magnetic core obtained by molding copper or a copper alloy having 2 parts by weight of ferrite per part by weight of copper or copper alloy dispersed therein;
- and
- b) a conductive coil wound around an outer peripheral surface of said magnetic core.
A highly conductive magnetic relay comprising:
- i) a highly conductive electromagnet comprising:
- a) a conductor;
- b) a conductive, magnetic core obtained by molding copper or a copper alloy having 2 parts by weight of magnetically soft ferrite per part by weight of copper or copper alloy dispersed therein, wherein said conductor is attached to said conductive magnetic core;
- and
- c) a conductive coil wrapped around an outer peripheral surface of said conductive magnetic core;
- and
- ii) a highly conductive magnetic spring comprising:
- d) a highly conductive magnetic spring obtained by molding copper or a copper alloy having 1-2 parts by weight of magnetically hard ferrite per part by weight of copper or copper alloy dispersed therein, said conductive magnetic spring being located within the induced magnetic field of said highly conductive electromagnet and is capable of being attracted to and contacted with said electromagnet when a magnetic field is induced in said electromagnet;
- e) means for supporting said highly conductive magnetic spring;
- f) a second conductor, attached to said highly conductive magnetic spring;
- wherein when an electric current is applied to said conductive coil, said magnetic core becomes magnetized and attracts and contacts said conductive magnetic spring, thereby conductively connecting said conductors.
8 more elements
Dependencies are inferred from the claim text.