JPS5680104A - Attracting type electromagnet - Google Patents
Attracting type electromagnetInfo
- Publication number
- JPS5680104A JPS5680104A JP15759279A JP15759279A JPS5680104A JP S5680104 A JPS5680104 A JP S5680104A JP 15759279 A JP15759279 A JP 15759279A JP 15759279 A JP15759279 A JP 15759279A JP S5680104 A JPS5680104 A JP S5680104A
- Authority
- JP
- Japan
- Prior art keywords
- permalloy
- ferromagnetic materials
- attracting force
- electromagnet
- separating
- 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
Links
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
- H01F7/081—Magnetic constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Abstract
PURPOSE:To increase the attracting force of an electromagnet and the separating speed thereof by employing two or more types of ferromagnetic materials of different properties in combination as a magnetic core. CONSTITUTION:Ferromagnetic materials having different properties such as saturated magnetic flux density, corcive force and residual magnetic flux density and so forth are composed in mixture, thereby forming a magnetic core. For example, a permalloy 45 having large attracting force and permalloy 78 having large separating velocity are employed. permalloy 45 is used at 3a, 3c, 5a, 5c and the permalloy 78 are used at 3b, 5b, thereby forming an armature 3 and a yoke 5. Thus, the attracting force and separating velocity of the electromagnet are increased and are utilized for the shutter of a camera or the like. Further, ferromagnetic materials having different hardnesses are combined, and harder material is used for a yoke and softer material is used for the contacts 50b, 51b of the armature, thereby enhancing the contacting strength.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15759279A JPS5680104A (en) | 1979-12-05 | 1979-12-05 | Attracting type electromagnet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15759279A JPS5680104A (en) | 1979-12-05 | 1979-12-05 | Attracting type electromagnet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680104A true JPS5680104A (en) | 1981-07-01 |
Family
ID=15653072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15759279A Pending JPS5680104A (en) | 1979-12-05 | 1979-12-05 | Attracting type electromagnet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680104A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63229804A (en) * | 1987-03-19 | 1988-09-26 | Mic Kogyo Kk | Electromagnetic actuator |
EP0936636A2 (en) * | 1998-02-10 | 1999-08-18 | DaimlerChrysler AG | Electromagnet |
-
1979
- 1979-12-05 JP JP15759279A patent/JPS5680104A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63229804A (en) * | 1987-03-19 | 1988-09-26 | Mic Kogyo Kk | Electromagnetic actuator |
EP0936636A2 (en) * | 1998-02-10 | 1999-08-18 | DaimlerChrysler AG | Electromagnet |
EP0936636A3 (en) * | 1998-02-10 | 2000-08-16 | DaimlerChrysler AG | Electromagnet |
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