WO2008075640A1 - 電磁石装置 - Google Patents
電磁石装置 Download PDFInfo
- Publication number
- WO2008075640A1 WO2008075640A1 PCT/JP2007/074216 JP2007074216W WO2008075640A1 WO 2008075640 A1 WO2008075640 A1 WO 2008075640A1 JP 2007074216 W JP2007074216 W JP 2007074216W WO 2008075640 A1 WO2008075640 A1 WO 2008075640A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- permanent magnet
- mover
- contact
- stator
- Prior art date
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
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
-
- 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
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
Definitions
- the present invention relates to an electromagnet device, and is particularly suitable for application to a switch provided with an exciting coil and a permanent magnet.
- a switch such as a circuit breaker is provided with a pair of electrodes inside, and a movable side port is drawn out from one of the electrodes, and the drawn out movable side rod is attached to a movable element. Connected to the moving shaft.
- an exciting current is applied to the exciting coil of the electromagnet device, the mover is driven to the stator side by the magnetic attractive force of the generated magnetic flux. Then, this driving force is transmitted to the movable rod via the movable shaft, and when one electrode is brought into contact with the other electrode, the switch is shifted to the on state.
- There are always-excitation, mechanical latch and electromagnetic latch as means for maintaining this input state.
- the energization coil In normal excitation, the energization coil is continuously energized even after the switch is shifted to the on state, so that the on state is maintained and power consumption is increased.
- the mechanical latch holds the input state by mechanically hooking it with an appropriate structure, etc., and generally requires a complicated form, which consumes the drive part such as applying lubricant. Maintenance to suppress it is necessary.
- the electromagnetic latch retains the input state by the electromagnetic attractive force of the permanent magnet, and when the switch is shifted to the input state,
- the power S is used to save power by reducing the power to stop energizing the exciting coil or reducing the energized current.
- An object of the present invention is to provide an electromagnet device that can easily switch between electromagnetic latching and constant excitation without complicating the configuration.
- the mover attached to the movable shaft, the movable shaft is inserted, and the movable member can be contacted and separated.
- It comprises a frame to be formed and a magnetic short-circuit plate that is detachably provided so as to straddle the permanent magnet and reduces the amount of magnetic flux generated from the permanent magnet.
- the electromagnet device is disposed so as not to contact the mover, to contact the inner surface of the frame and to contact one pole of the permanent magnet.
- a first magnetic plate, and a second magnetic plate disposed so as to be slidable with the mover so as not to contact the frame and to be in contact with the other pole of the permanent magnet.
- the magnetic short-circuit plate is constructed between the first magnetic plate and the second magnetic plate.
- the permanent magnet and the exciting coil are arranged side by side along the movable shaft, and the permanent magnet is arranged in front of the first magnetic plate.
- the electromagnet device according to one aspect of the present invention increases the cross-sectional area of the magnetic short-circuit plate. By decreasing, the amount of magnetic flux generated from the permanent magnet is increased or decreased.
- the first magnetic plate and the second magnetic plate have a contact surface with the magnetic short-circuit plate formed in a round shape!
- FIG. 1 is a cross-sectional view showing a released state of an electromagnet device according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing a charged state of the electromagnet device according to the embodiment of the present invention.
- FIG. 3 is a front view showing the configuration of the electromagnet device when viewed from the A2 direction in FIGS. 1 and 2.
- FIG. 4 is a side view showing the configuration of the electromagnet device when viewed from the direction A3 in FIG.
- FIG. 1 shows a released state of the electromagnet device according to an embodiment of the present invention along the line A1-A1 in FIG.
- FIG. 2 is a cross-sectional view showing a cut state
- FIG. 2 is a cross-sectional view showing an insertion state of an electromagnet device according to an embodiment of the present invention
- FIG. FIG. 4 is a front view showing the configuration
- FIG. 4 is a side view showing the configuration of the electromagnet device when viewed from the direction A3 in FIG.
- the electromagnet device is provided with a movable element 2 and a stationary element 3 that can be brought into contact with and separated from each other, and is interrupted so as to separate the movable element 2 and the stationary element 3 from each other.
- Panel 4 is provided.
- the electromagnet device is provided with an exciting coil 8 for bringing the mover 2 into contact with the stator 3, and a permanent magnet 9 for generating a magnetic force for maintaining the contact state between the mover 2 and the stator 3. It has been.
- the mover 2 and the stator 3 are formed in a cylindrical shape, and the mover 2 is fixed to the movable shaft 1 penetrating through the central portion of the electromagnet device, and the stator 3 is formed inside thereof.
- the movable shaft 1 is inserted through the formed through hole.
- the mover 2 and the stator 3 are arranged so that a gap 5 is formed in which the mover 2 can be separated from the stator 3 when released.
- a movable screw la is formed at one end of the movable shaft 1.
- the movable element 2 can be fixed to the movable shaft 1 by attaching the movable nut lb to the movable screw la and tightening the movable nut lb.
- a spring groove 4 a is formed along the movable shaft 1 on the facing surface side of the movable element 2 and the stator 3.
- the shut-off panel 4 is disposed so as to straddle the gap 5.
- a cylindrical frame 6 surrounding the mover 2 and the stator 3 is provided outside the mover 2 and the stator 3.
- a frame end 6 a orthogonal to the movable shaft 1 is formed at one end of the frame 6, and an end plate 7 disposed to face the frame end 6 a is attached to the other end of the frame 6.
- a through hole for inserting the stator 3 is formed in the frame end 6a.
- a support groove 3a into which the tip of the ram end 6a is inserted is formed.
- the stator 3 and the frame 6 are fixed by inserting the end of the frame end 6a into the support groove 3a.
- An exciting coil 8 and a permanent magnet 9 housed in the frame 6 are arranged on the outer peripheral side of the mover 2 and the stator 3.
- the exciting coil 8 and the permanent magnet 9 can be arranged side by side along the movable shaft 1.
- the exciting coil 8 can be configured to have a cylindrical force S so that a part of the stator 3 and the mover 2 is surrounded. Then, by winding an electric wire around the coil frame 8 a having a hollow portion, the exciting coil 8 can be formed, and the force 2 and the stator 3 can be inserted into the hollow of the exciting coil 8.
- a gap 2a can be formed along the movable shaft 1 between the movable element 2 and the coil frame 8a.
- the permanent magnet 9 can be configured to have a ring-shaped force S so that, for example, a part of the mover 2 is surrounded.
- the permanent magnet 9 may be formed, for example, in a bar shape and arranged up and down via the movable element 2.
- the permanent magnet 9 is sandwiched between the magnetic plates 11 and 12 and is fixed to the frame 6 via the magnetic plates 11 and 12.
- the magnetic plate 11 is disposed so as to be in contact with the inner surface of the frame 6 so as not to contact the movable element 2 and to be in contact with one pole of the coil frame 8 a and the permanent magnet 9.
- the magnetic plate 11 and the permanent magnet 9 form a space 13 that communicates with the gap 2a.
- the magnetic plate 12 is disposed so as to be slidable with the mover 2 so as not to contact the frame 6, and is disposed so as to be in contact with the other pole of the permanent magnet 9.
- a fastening bolt 14 is disposed between the magnetic plate 12 and the end plate 7, and the fastening bolt 14 is inserted into a through hole formed in the end plate 7. Then, the fastening nut 15 is installed in the thread groove of the fastening bolt 14 and the fastening nut 15 is tightened to press the fastening bolt 14 against the magnetic plate 12, and the fastening bolt 14 and the frame end 6a
- the exciting coil 8 and the permanent magnet 9 can be supported between the two.
- a magnetic short-circuit plate 16 is detachably provided between the magnetic plates 11 and 12 so as to straddle the permanent magnet 9.
- the magnetic short-circuit plate 16 can be installed between the magnetic plates 11 and 12 so that the magnetic plates 11 and 12 are magnetically short-circuited, and the amount of magnetic flux generated from the permanent magnet 9 is reduced. It is possible to make it S.
- the magnetic short-circuit plate 16 can be formed of, for example, a steel plate. Then, the magnetic short-circuit plate 16 can be mounted between the magnetic plates 11 and 12 and the magnetic short-circuit plate 16 can be removed by the magnetic attractive force of the permanent magnet 9.
- the amount of magnetic flux generated from the permanent magnet 9 can be increased or decreased by increasing or decreasing the cross-sectional area of the magnetic short-circuit plate 16.
- a round surface 17 may be formed on the contact surface with the magnetic short-circuit plate 16 at the end portions lla and 12a of the magnetic plates 11 and 12, respectively.
- the magnetic short-circuit plate 16 can be attached to operate as a permanent magnet, and the magnetic short-circuit plate 16 can be removed to operate as an electromagnetic latch.
- the magnetic path 10b is formed by circulating mainly the permanent magnet 9 ⁇ magnetic plate 12 ⁇ mover 2 ⁇ end plate 7 ⁇ frame 6 ⁇ magnetic plate 11 ⁇ permanent magnet 9. .
- the movable element 2 can always be kept in contact with the end plate 7 by the magnetic attractive force of the magnetic passage 10b. For this reason, the moving distance by which the mover 2 moves from the blocking position to the closing position can be made uniform, and the contact time during which the mover 2 can contact the stator 3 can be made uniform. Improve the quality of electromagnet devices with power S.
- the exciting coil 8 When the exciting coil 8 is energized and the exciting coil 8 is energized in this state, the magnetic flux ⁇ generated by the exciting coil 8 is, as shown by the dotted line in FIG.
- the magnetic path 10a By mainly circulating the mover 2 ⁇ the stator 3 ⁇ the frame 6 ⁇ the magnetic plate 11 ⁇ the permanent magnet 9, the magnetic path 10a is formed, and the magnetic flux ⁇ of the permanent magnet 9 also joins the magnetic path 10a.
- the mover 2 is fixed to the stator by the magnetic attractive force of the magnetic fluxes ⁇ and ⁇ flowing through the magnetic flux path 10a.
- the mover 2 is moved in the direction of the stator 3 as shown in Fig. 2. While compressing 4, the movable element 2 comes into contact with the stator 3 and enters the input state.
- the amount of magnetic flux from the permanent magnet 9 is reduced by the magnetic loss of the magnetic short-circuit plate 16, and the magnetic attractive force of the permanent magnet 9 is reduced. Therefore, by supplementing the decrease in the magnetic attractive force with the magnetic attractive force of the magnetic flux ⁇ of 8 exciting coils, the applied state can be maintained, and it can be operated as an excitation of the Chuganji Temple.
- the movable element 2 comes into contact with the stator 3 by the magnetic attraction force from the permanent magnet 9 in the magnetic flux path 10a, and is kept in the closed state, and operates as an electromagnetic latch. You can make it S. For this reason, after shifting to the on state, it is possible to save power by reducing the power to stop energizing the exciting coil 8 or the energizing current.
- the electromagnetic latch and the constant excitation can be used in one electromagnetic device, and the electromagnetic latch and the constant excitation can be easily switched without complicating the configuration. It is possible to improve the usability of the electromagnet device while suppressing the increase in size and cost of the electromagnet device.
- electromagnet device of the present invention in order to switch from the regular excitation to the electromagnetic latch, even an existing electromagnet device that simply removes the magnetic short-circuit plate 16 can easily shift from the regular excitation to the electromagnetic latch. be able to.
- the force S described for the method of separating the mover 2 from the stator 3 by the release force of the stored energy of the shut-off panel 4, the reverse magnetic force of the exciting coil 8 is described. Since the movable element 2 can be separated from the stator 3 only by the suction force, the shut-off panel 4 is not necessarily required.
- the magnetic short-circuit plate 16 disposed between the magnetic plates 11 and 12 can be observed from the outside of the electromagnet device, so that a manufacturing error or imitation by a third party can be easily found.
- the amount of magnetic flux generated from the permanent magnet 9 can be increased or decreased by increasing or decreasing the cross-sectional area of the magnetic short-circuit plate 16, and the exciting current supplied to the exciting coil 8 can be adjusted to an arbitrary value. Touch with force S.
- each of the magnetic plates 11 and 12 by forming the rounded surface 17 on the contact surface with the magnetic short-circuit plate 16, the magnetic flux can be concentrated on the rounded surface 17, and the leakage magnetic flux corresponding to the amount of the rounded surface 17 formed. Therefore, magnetic loss can be reduced and magnetic efficiency can be improved.
- the electromagnet device of the present invention can be used for, for example, a switch such as a circuit breaker or a leakage circuit breaker, or an electromagnetic actuator used in the breaker, and when the power is cut off, the breaker is used. It can be applied to both the field that needs to be shut off and the field that needs to maintain the power-on state when the power is turned off.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800431994A CN101542650B (zh) | 2006-12-18 | 2007-12-17 | 电磁铁装置 |
JP2008550136A JP4630373B2 (ja) | 2006-12-18 | 2007-12-17 | 電磁石装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006340248 | 2006-12-18 | ||
JP2006-340248 | 2006-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008075640A1 true WO2008075640A1 (ja) | 2008-06-26 |
Family
ID=39536270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/074216 WO2008075640A1 (ja) | 2006-12-18 | 2007-12-17 | 電磁石装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4630373B2 (ja) |
CN (1) | CN101542650B (ja) |
WO (1) | WO2008075640A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5016680B2 (ja) * | 2007-11-06 | 2012-09-05 | 富士電機株式会社 | 電磁石装置 |
EP3425648A4 (en) * | 2016-03-03 | 2019-08-07 | Nachi-Fujikoshi Corp. | SOLENOID |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5649738B2 (ja) * | 2011-09-19 | 2015-01-07 | 三菱電機株式会社 | 電磁操作装置およびそれを用いた開閉装置 |
CN109448950B (zh) * | 2018-12-07 | 2020-11-03 | 太原理工大学 | 一种径向充磁的动磁式比例电磁铁 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872815U (ja) * | 1981-11-12 | 1983-05-17 | 株式会社広業社通信機器製作所 | ソレノイド |
JPS58116211U (ja) * | 1982-01-30 | 1983-08-08 | 株式会社広業社通信機器製作所 | ソレノイド |
JPS58159715U (ja) * | 1982-04-19 | 1983-10-25 | 星電器製造株式会社 | 自己保持形ソレノイド |
JP2004172516A (ja) * | 2002-11-22 | 2004-06-17 | Mitsubishi Electric Corp | 有極電磁石装置 |
JP2006108615A (ja) * | 2004-09-07 | 2006-04-20 | Toshiba Corp | 電磁アクチュエータ |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2442372Y (zh) * | 2000-09-23 | 2001-08-08 | 郑奇存 | 牵引电磁铁 |
-
2007
- 2007-12-17 JP JP2008550136A patent/JP4630373B2/ja active Active
- 2007-12-17 WO PCT/JP2007/074216 patent/WO2008075640A1/ja active Search and Examination
- 2007-12-17 CN CN2007800431994A patent/CN101542650B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5872815U (ja) * | 1981-11-12 | 1983-05-17 | 株式会社広業社通信機器製作所 | ソレノイド |
JPS58116211U (ja) * | 1982-01-30 | 1983-08-08 | 株式会社広業社通信機器製作所 | ソレノイド |
JPS58159715U (ja) * | 1982-04-19 | 1983-10-25 | 星電器製造株式会社 | 自己保持形ソレノイド |
JP2004172516A (ja) * | 2002-11-22 | 2004-06-17 | Mitsubishi Electric Corp | 有極電磁石装置 |
JP2006108615A (ja) * | 2004-09-07 | 2006-04-20 | Toshiba Corp | 電磁アクチュエータ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5016680B2 (ja) * | 2007-11-06 | 2012-09-05 | 富士電機株式会社 | 電磁石装置 |
EP3425648A4 (en) * | 2016-03-03 | 2019-08-07 | Nachi-Fujikoshi Corp. | SOLENOID |
US11049635B2 (en) | 2016-03-03 | 2021-06-29 | Nachi-Fujikoshi Corp. | Solenoid |
Also Published As
Publication number | Publication date |
---|---|
CN101542650A (zh) | 2009-09-23 |
CN101542650B (zh) | 2012-08-08 |
JP4630373B2 (ja) | 2011-02-09 |
JPWO2008075640A1 (ja) | 2010-04-08 |
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