CN101030507A - Electromagnetic release - Google Patents
Electromagnetic release Download PDFInfo
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- CN101030507A CN101030507A CNA2007100848152A CN200710084815A CN101030507A CN 101030507 A CN101030507 A CN 101030507A CN A2007100848152 A CNA2007100848152 A CN A2007100848152A CN 200710084815 A CN200710084815 A CN 200710084815A CN 101030507 A CN101030507 A CN 101030507A
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- armature
- mobile armature
- permanent magnet
- yoke
- electromagnetic release
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- 230000004907 flux Effects 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 86
- 229910052742 iron Inorganic materials 0.000 abstract description 43
- 230000000452 restraining effect Effects 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 15
- 239000000428 dust Substances 0.000 description 10
- 239000000696 magnetic material Substances 0.000 description 9
- 239000003245 coal Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Abstract
The invention provides a releasing electromagnetic device capable of restraining changes of an attractive force between connection faces of a movable armature and a fixed armature without increasing a connection area of the movable armature and the fixed armature. The movable armature (6) arranged on a yoke iron sheet (4) projectingly and freely is configured facing the fixed armature (10), a hollow cylindric permanent magnet (5) magnetized in an axes direction is configured around the fixed armature (10) and the movable armature (6), a flux density passing through the connection face of the movable armature (6) and the fixed armature (10) is set more than 1 tesla.
Description
Technical field
The present invention relates to electromagnetic release, especially be fit to be applied to when overload electric current or leakage current flow through main circuit, make the trip gear of electromagnet action breaker of action so that tripping mechanism trips.
Background technology
All the time, in circuit-breaker and leakage circuit breaker, be provided with the trip gear of breaker.The trip gear of such breaker can detect abnormal currents such as the overload electric current that flows through in the main circuit or leakage current, and according to detection signal at that time main body mechanism portion is triped, thereby makes the main circuit open circuit.In recent years, as the trip gear of breaker, the use that is provided with the electromagnetic release of release electromagnet is increasing.
Figure 10 is the sectional view of the schematic configuration of the existing electromagnetic release of expression.
In Figure 10, coil 202 is wound onto coil with on the coil rack 201, and is incorporated in the yoke 203 that forms the コ word shape.On yoke 203, dispose the yoke iron slice 204 with two pin bridge joints of yoke 203, dispose the permanent magnet 205 that on thickness direction, is magnetized in the bottom of yoke 203.Permanent magnet 205 is provided with the fixed armature 207 that is made of magnetic material, and, insert logical coil and give prominence to the mobile armature 206 and fixed armature 207 relative configurations that freely constitutes with coil rack 201, on yoke iron slice 204.
At this, between mobile armature 206 and coil are with coil rack 201, be provided with the outstanding guide rail 210 that freely keeps mobile armature 206.In addition, front end at mobile armature 206 is provided with the fastener 209 that slide block (slider) and mobile armature 206 cards are ended, and mobile armature 206 is applied the trip spring 208 of active force between yoke iron slice 204 and fastener 209 to the projected direction A3 of mobile armature 206.
At this, permanent magnet 205 attracts on the direction opposite with the projected direction A3 of mobile armature 206, and the elastic force with trip spring 208 resists thus, mobile armature 206 is withdrawn into the direction opposite with projected direction A3.Be configured to greater than elastic force F2 towards the attraction F1 of the permanent magnet 205 of the direction opposite towards the trip spring 208 of the projected direction A3 of mobile armature 206 with the projected direction A3 of mobile armature 206.Therefore, under the closed circuit situation of main circuit, the energising of coil 202 is disconnected, mobile armature 206 is maintained at the state that is connected with fixed armature 207.In this case, mobile armature 206 has the maintenance surplus energy of (F1-F2).
When abnormal currents such as overload electric current or leakage current flowed in main circuit, this abnormal current was detected by testing circuit, and coil 202 is energized.When coil 202 is energized, form the opposite counter field in magnetic field that produces with permanent magnet 205, the attraction F1 of permanent magnet 205 reduces, and the elastic force F2 of trip spring 208 surpasses attraction F1, so mobile armature 206 is outstanding to projected direction A3.
At this, when permanent magnet 205 produced attraction F1, magnetic flux passed permanent magnet 205 → fixed armature 207 → mobile armature 206 → yoke iron slice 204 → yoke 203, by path RB41.Therefore, with respect to the magnetic field that is produced by permanent magnet 205, space B41 becomes the obstacle that magnetic flux passes through.In addition, the counter field that is produced by coil 202 also passes through path RB41.Therefore, with respect to the counter field that is produced by coil 202, space B42 becomes the obstacle that magnetic flux passes through, and the magnetic resistance of seeing from coil 202 is increased.In addition, the electromagnetic release of Figure 10 is that the center becomes symmetrical structure with mobile armature 206, so only shown the path RB41 of a side.
In addition, for example, in patent documentation 1, disclose for reduce the magnetic resistance seen from coil with the efficient that improves electromagnet between mobile armature the configuration permanent magnet so that the method that mobile armature and yoke directly are connected.In this case, the magnetic flux density of the interface of the attraction of mobile armature and itself and fixed armature square and area proportional.The mobile armature that is made of magnetic material and the magnetic characteristic of fixed armature demonstrate saturated trend under the magnetic flux density more than 1 tesla, so, under the magnetic flux density below undersaturated 1 tesla of magnetic characteristic, use usually.
[patent documentation 1] spy opens 2001-35344 communique (corresponding U.S. Pat P6,646,529, corresponding Chinese patent application CN1290949A)
But in existing electromagnetic release, the magnetic resistance of the permanent magnet of seeing from coil 202 205 is big, so, make coil 202 energisings when eliminating the magnetic flux of permanent magnet 205, coil 202 desired magnetomotive force increase.Therefore, need to increase the volume number of coil 202, have electromagnet not only to increase but also become the problem of the main cause that cost increases.
In addition, in the disclosed method, the magnetic flux density of the interface when being connected with fixed armature by mobile armature is set to below 1 tesla in patent documentation 1, and therefore, the linking area that must increase needs therefrom is so exist coil to be difficult to the problem of miniaturization.
In addition, when mobile armature was outstanding, dust that produces when opening circuit and dust etc. invaded on the interface of mobile armature and fixed armature through the space, and the attraction that permanent magnet is produced reduces, so the problem of environment resistant difference is arranged.
Summary of the invention
Therefore, the objective of the invention is, provide a kind of and can suppress mobile armature does not increase mobile armature and fixed armature with the variation of the attraction of the interface of fixed armature the electromagnetic release that is connected area.
In order to solve above-mentioned problem, the electromagnetic release according to first aspect present invention is characterized in that, comprising: outstanding freely maintained mobile armature on prescribed direction; The fixed armature of relative configuration with above-mentioned mobile armature; Above-mentioned mobile armature is applied the trip spring of active force to projected direction; Above-mentioned trip spring is remained on the permanent magnet of the state of saving up strength; By above-mentioned mobile armature and said fixing armature, constitute yoke from the magnetic circuit of the magnetic flux of above-mentioned permanent magnet; With testing result according to abnormal current, form the electromagnet of the counter field opposite with the magnetic field of above-mentioned permanent magnet, the magnetic flux density of the interface when being connected with said fixing armature by above-mentioned mobile armature is more than 1 tesla.
Thus, can increase the magnetic flux density of the interface when being connected with fixed armature by mobile armature, thereby can increase the attraction of mobile armature, and, can use in the zone that magnetic characteristic demonstrate saturated trend, even under foreign matters such as coal and dust are sandwiched in situation on the interface, also can reduce the variation of attraction.Therefore, can realize to suppress mobile armature and not increase being connected of mobile armature and fixed armature electromagnetic release area, small-sized and environment resistant excellence with the variation of the attraction of the interface of fixed armature.
In addition, the electromagnetic release according to second aspect present invention is characterized in that, comprising: outstanding freely maintained mobile armature on prescribed direction; The fixed armature of relative configuration with above-mentioned mobile armature; Above-mentioned mobile armature is applied the trip spring of active force to projected direction; Above-mentioned trip spring is remained on the permanent magnet of the state of saving up strength; By above-mentioned mobile armature and said fixing armature, constitute yoke from the magnetic circuit of the magnetic flux of above-mentioned permanent magnet; According to the testing result of abnormal current, form the electromagnet of the counter field opposite with the magnetic field of above-mentioned permanent magnet; With the leading section that is arranged on above-mentioned mobile armature, than the little minor diameter of the diameter of said fixing armature.
Thus, under mobile armature and situation that fixed armature is connected, can in the leading section of mobile armature, form the gap, invade through the space at foreign matters such as coal and dust under the situation on the interface of mobile armature and fixed armature, foreign matters such as coal and dust can be arrived in the gap of leading section of mobile armature.Therefore, can realize to suppress mobile armature and not increase being connected of mobile armature and fixed armature electromagnetic release area, small-sized and environment resistant excellence with the variation of the attraction of the interface of fixed armature.
In addition, electromagnetic release according to a kind of preferred implementation, it is characterized in that: above-mentioned permanent magnet is made of hollow circle tube, be adsorbed on by magnetic on the axis direction or radial line direction of above-mentioned hollow circle tube, and above-mentioned mobile armature is inserted the hollow bulb of logical above-mentioned permanent magnet.
Thus, magnetic resistance is reduced and make permanent magnet or magnetic flux that electromagnet produces passes through armature.Therefore, the efficient of permanent magnet and electromagnet can be improved, thereby the miniaturization of electromagnetic release can be realized, and, the versatility of electromagnetic release and environment resistant can be improved.
In addition, the electromagnetic release according to a kind of preferred implementation is characterized in that, above-mentioned yoke comprises: take in above-mentioned permanent magnet and above-mentioned electromagnet the コ word shape the trihedral framework and have the monohedron framework of the slotting port of above-mentioned mobile armature.
Thus, can realize the miniaturization and the low price of electromagnetic release, and can be by mobile armature and fixed armature, the formation magnetic circuit from the magnetic flux of permanent magnet.
In addition, the electromagnetic release according to a kind of preferred implementation is characterized in that, between the slotting port and above-mentioned mobile armature of above-mentioned monohedron framework, inserts and is connected with the cylinder that is made of nonmagnetic material.
Thus, mobile armature is inserted under the situation of slotting port of logical monohedron framework, can reduced the skew of the magnetic resistance that causes by the absorption of mobile armature and yoke etc.Therefore, electromagnetic release is stably moved, thereby can improve the reliability of electromagnetic release.
In addition, the electromagnetic release according to a kind of preferred implementation is characterized in that, comprising: the flange that a side that contacts at above-mentioned cylindrical and above-mentioned yoke is provided with; Be arranged on the above-mentioned yoke, take in the step difference of above-mentioned cylindrical flange.
Thus, can make the position stability of permanent magnet, thereby mobile armature is stably carried out with the action that is connected of fixed armature.
In addition, the electromagnetic release according to a kind of preferred implementation is characterized in that, inserts to lead at the slotting port of above-mentioned monohedron framework and the cylinder between the above-mentioned mobile armature, constitutes integratedly with the coil rack of the above-mentioned magnet spool that is used to reel.
Thus, can reduce components number, and reduce the skew of the magnetic resistance that causes by the absorption of mobile armature and yoke etc.Therefore, electromagnetic release is stably moved, thereby can improve the reliability of electromagnetic release, and can realize the low price of electromagnetic release.
As described above, according to the present invention, can realize to suppress mobile armature and not increase being connected of mobile armature and fixed armature electromagnetic release area, small-sized and environment resistant excellence with the variation of the attraction of the interface of fixed armature.
Description of drawings
Fig. 1 is the sectional view of schematic configuration of the electromagnetic release of expression first execution mode of the present invention.
Fig. 2 is the figure of the B-H characteristic of the mobile armature 6 of presentation graphs 1 and fixed armature 10 employed materials.
Fig. 3 is the sectional view of schematic configuration of the electromagnetic release of expression second execution mode of the present invention.
Fig. 4 is the sectional view of schematic configuration of the electromagnetic release of expression the 3rd execution mode of the present invention.
Fig. 5 is the sectional view of schematic configuration of the electromagnetic release of expression the 4th execution mode of the present invention.
Fig. 6 (a) is the side view of an example of leading section of the mobile armature of expression an embodiment of the invention, and Fig. 6 (b) is the ground plan of an example of leading section of the mobile armature of expression an embodiment of the invention.
Fig. 7 (a) is the side view of another example of leading section of the mobile armature of expression an embodiment of the invention, and Fig. 7 (b) is the ground plan of another example of leading section of the mobile armature of expression an embodiment of the invention.
Fig. 8 is the sectional view of schematic configuration of the electromagnetic release of expression the 5th execution mode of the present invention.
Fig. 9 is the sectional view of schematic configuration of the electromagnetic release of expression the 6th execution mode of the present invention.
Figure 10 is the sectional view of the schematic configuration of the existing electromagnetic release of expression.
Symbol description
1,21,41,101,121,141 coil coil racks
2,22,42,102,122,142 coils
3,23,43,103,123,143 yokes
4,24,44,104,124,144 yoke iron slices
5,25,45,105,125,145 permanent magnets
6,26,46,106,112,115,126,146 mobile armatures
7,21a, 21b, 41a, 41b, 107,121a, 121b, 141a, 141b cylinder
8,28,48,108,128,147 trip springs
9,29,49,109,129,149 fasteners
10,30,50,110,130,150 fixed armatures
11,111 back-moving springs
The 21c flange
106b, 126b, 146b minor diameter
113 notchs
114,117 interfaces
116 chamfered section
126a, 146a step difference
Embodiment
Below, with reference to accompanying drawing, the electromagnetic release of embodiments of the present invention is described.
Fig. 1 is the sectional view of schematic configuration of the electromagnetic release of expression first execution mode of the present invention.
In Fig. 1, coil 2 is wound onto coil with on the coil rack 1, and is incorporated in the yoke 3 that the trihedral by the コ word shape constitutes.On yoke 3, dispose the yoke iron slice 4 with two pin bridge joints of yoke 3, be provided with the fixed armature 10 that constitutes by magnetic material in the bottom of yoke 3.Yoke 3 and yoke iron slice 4 can be made of SPC etc.In addition, fixed armature 10 can utilize the secured core that is made of SPC or magnetic stainless steel etc. to constitute, and can be fixed on the bottom of yoke 3 with methods such as riveted joints.In addition, yoke iron slice 4 can be made of the monohedron framework of the slotting port with mobile armature 6.In addition, insert logical coil and give prominence to the mobile armature 6 and fixed armature 10 relative configurations that freely constitutes with coil rack 1, on yoke iron slice 4.At this, the magnetic flux density of the interface in the time of preferably will being connected with fixed armature 10 by mobile armature 6 is set at more than 1 tesla.
In addition, with below the coil rack 1, around fixed armature 10 and mobile armature 6, dispose the permanent magnet 5 of the hollow circle tube that is magnetized along axis direction at coil.At this, be provided with the cylinder 7 that is made of nonmagnetic material with the outstanding hollow circle tubes that freely keep of mobile armature 6 between coil is with coil rack 1 and mobile armature 6 and between permanent magnet 5 and the mobile armature 6, mobile armature 6 is inserted logical coils with coil rack 1 and permanent magnets 5 across cylinder 7.In addition, be provided with fastener 9, mobile armature 6 applied the trip spring 8 of active force and be used to make back-moving spring 11 that fastener 9 returns all between yoke iron slice 4 and fastener 9 to the projected direction A1 of mobile armature 6 at the front end of mobile armature 6.
At this, permanent magnet 5 attracts to the direction opposite with the projected direction A1 of mobile armature 6, and the elastic force with trip spring 8 resists thus, mobile armature 6 is withdrawn into the direction opposite with projected direction A1.Be configured to greater than elastic force F2 towards the attraction F1 of the permanent magnet 5 of the direction opposite towards the trip spring 8 of the projected direction A1 of mobile armature 6 with the projected direction A1 of mobile armature 6.Therefore, under the closed circuit situation of main circuit, the energising of coil 2 is disconnected, mobile armature 6 is maintained at the state that is connected with fixed armature 10.In this case, mobile armature 6 has the maintenance surplus energy of (F1-F2).
When having served as abnormal currents such as load current or leakage current and flowing in main circuit, this abnormal current is detected by testing circuit, and coil 2 is energized.When coil 2 is energized, form the opposite counter field in magnetic field that produces with permanent magnet 5, the attraction F1 of permanent magnet 5 reduces, and the elastic force F2 of trip spring 8 surpasses attraction F1, so mobile armature 6 is outstanding to projected direction A1.
In addition, produce under the situation of attraction F1 at permanent magnet 5, magnetic flux passes permanent magnet 5 → yoke 3 → fixed armature 10 → mobile armature 6, by path RB1.Therefore, with respect to the magnetic field that permanent magnet 5 produces, space B11 becomes the obstacle that magnetic flux passes through.On the other hand, the counter field that coil 2 produces passes fixed armature 10 → mobile armature 6 → yoke iron slice 4 → yoke 3, by path RC1.Therefore, with respect to the counter field that coil 2 produces, space C11 becomes the obstacle that magnetic flux passes through.In addition, because the electromagnetic release of Fig. 1 is that the center becomes symmetrical structure with mobile armature 6, so only shown one-sided path RB1, RC1.In addition, because below the interval of space B11, C11 can both be suppressed at about 1mm, so the magnetic resistance of seeing from coil 2 and permanent magnet 5 is reduced.
At this, the magnetic flux density of the interface by will be connected with fixed armature 10 by mobile armature 6 time is set in more than 1 tesla, the magnetic flux density of the interface when being connected with fixed armature 10 by mobile armature 6 is increased, thereby can increase the attraction of mobile armature 6, and can use in the zone that magnetic characteristic demonstrate saturated trend, even under foreign matters such as coal or dust are sandwiched in situation on the interface, also can reduce the variation of attraction.Therefore, can realize to suppress mobile armature 6 and not increase being connected of mobile armature 6 and fixed armature 10 electromagnetic release area, small-sized and environment resistant excellence with the variation of the attraction of the interface of fixed armature 10.
In addition, utilize the hollow circle tube that is adsorbed on the axis direction by magnetic to constitute permanent magnet 5, and make mobile armature 6 insert the hollow bulbs of logical permanent magnets 5, thus, magnetic resistance is reduced and make permanent magnet 5 or magnetic flux that electromagnet produces passes through armature.Therefore, the efficient of permanent magnet 5 and electromagnet is improved, can realize the miniaturization of electromagnetic release, and can make the versatility and the environment resistant raising of electromagnetic release.
In addition, by the cylinder 7 that is made of nonmagnetic material is set between permanent magnet 5 and mobile armature 6, the magnetic resistance that the magnetic flux that produced from permanent magnet 5 and electromagnet is taken temperature is stable, thereby can improve the reliability of electromagnetic release.
Fig. 2 is the figure of the B-H characteristic of the mobile armature 6 of presentation graphs 1 and fixed armature 10 employed materials.
In Fig. 2, the gap of the interface of magnetic field intensity H and mobile armature 6 and fixed armature 10 is proportional, and the attraction of the interface of magnetic flux density B and mobile armature 6 and fixed armature 10 is proportional.At this, the mobile armature 6 that is made of magnetic material and the magnetic characteristic of fixed armature 10 demonstrate saturated trend under the magnetic flux density more than 1 tesla, under the magnetic flux density below 1 tesla, magnetic characteristic is unsaturated, so, magnetic flux density is under the situation below 1 tesla, and the variation of the attraction that is caused by the variation in gap increases.Therefore, the magnetic flux density of the interface by will be connected with fixed armature 10 by mobile armature 6 time is set at more than 1 tesla, can suppress the variation of the attraction that the variation by the gap causes.
Fig. 3 is the sectional view of schematic configuration of the electromagnetic release of expression second execution mode of the present invention.
In Fig. 3, coil 22 is wound onto coil with on the coil rack 21, and is incorporated in the yoke 23 that the trihedral by the コ word shape constitutes.On yoke 23, dispose the yoke iron slice 24 with two pin bridge joints of yoke 23, be provided with the fixed armature 30 that constitutes by magnetic material in the bottom of yoke 23.In addition, insert logical coil and give prominence to the mobile armature 26 and fixed armature 30 relative configurations that freely constitutes with coil rack 21, on yoke iron slice 24.At this, the magnetic flux density of the interface in the time of preferably will being connected with fixed armature 30 by mobile armature 26 is set at more than 1 tesla.In addition, in mobile armature 26, be provided with step difference 26a with the diameter of an opposite side with projected direction greater than the mode of the diameter of projected direction one side, mobile armature 26 can be made of two different cylinders of diameter at least.
In addition, with below the coil rack 21, around fixed armature 30 and mobile armature 26, dispose the permanent magnet 25 of the hollow circle tube that is magnetized along axis direction at coil.In addition, cylinder 21a, the 21b and the coil that are made of nonmagnetic material of hollow circle tube are provided with integratedly with coil rack 21, cylinder 21a extends between slotting port that is arranged on the mobile armature 26 on the yoke iron slice 24 and mobile armature 26, and cylinder 21b extends between permanent magnet 25 and mobile armature 26.So mobile armature 26 is inserted logical yoke iron slice 24 and permanent magnet 25 respectively across cylinder 21a, 21b.In addition, be provided with fastener 29 at the front end of mobile armature 26, at the trip spring 28 that on the projected direction of mobile armature 26 mobile armature 26 is applied active force between yoke iron slice 24 and fastener 29.
At this, by between slotting port that is arranged on the mobile armature 26 on the yoke iron slice 24 and mobile armature 26, cylinder 21a being set, when making mobile armature 26 insert the slotting port of logical yoke iron slices 24, can reduce the skew of the magnetic resistance that causes by the absorption of mobile armature 26 and yoke iron slice 24 etc.Therefore, electromagnetic release is stably moved, thereby can improve the reliability of electromagnetic release.
In addition,, can reduce components number, and reduce the skew of the magnetic resistance that causes by the absorption of mobile armature 26 and yoke iron slice 24 etc. by coil is formed with cylinder 21a, 21b with coil rack 21.Therefore, electromagnetic release is stably moved, thereby can improve the reliability of electromagnetic release, and can realize the low price of electromagnetic release.
In addition, the diameter of the opposite side with projected direction by making mobile armature 26 is bigger than the diameter of projected direction one side, under the situation that mobile armature 26 is attracted and under the situation of mobile armature 26 disengagings, the variation of the gas volume in the gap that is filled between mobile armature 26 and the coil usefulness coil rack 21 is reduced.Therefore, can make the foreign matter that when main circuit is opened a way, produces be difficult to enter into inside, thereby can improve the reliability of electromagnetic release.
In addition, can in yoke 23 step difference be set, this step difference is used to be accommodated in the flange 21c of the cylinder 21b of the side setting that contacts with yoke 23.Thus, can make the position stability of permanent magnet 25, thereby mobile armature 26 is stably carried out with the action that is connected of fixed armature 30.
Fig. 4 is the sectional view of schematic configuration of the electromagnetic release of expression the 3rd execution mode of the present invention.
In Fig. 4, coil 42 is wound onto coil with on the coil rack 41, and is incorporated in the yoke 43 that the trihedral by the コ word shape constitutes.On yoke 43, dispose the yoke iron slice 44 with two pin bridge joints of yoke 43, be provided with the fixed armature 50 that constitutes by magnetic material in the bottom of yoke 43.In addition, insert logical coil and give prominence to the mobile armature 46 and fixed armature 50 relative configurations that freely constitutes with coil rack 41, on yoke iron slice 44.At this, the magnetic flux density of the interface in the time of preferably will being connected with fixed armature 50 by mobile armature 46 is set at more than 1 tesla.In addition, in mobile armature 46, be provided with step difference 46a with the diameter of an opposite side with projected direction than the big mode of diameter of projected direction one side, mobile armature 46 can be made of two different cylinders of diameter at least.
In addition, with below the coil rack 41, around fixed armature 50 and mobile armature 46, dispose the permanent magnet 45 of the hollow circle tube that is magnetized along the radial line direction at coil.In addition, cylinder 41a, the 41b and the coil that are made of nonmagnetic material of hollow circle tube are provided with integratedly with coil rack 41, cylinder 41a extends between slotting port that is arranged on the mobile armature 46 on the yoke iron slice 44 and mobile armature 46, and cylinder 41b extends between permanent magnet 45 and mobile armature 46.So mobile armature 46 is inserted logical yoke iron slice 44 and permanent magnet 45 respectively across cylinder 41a, 41b.In addition, be provided with fastener 49 at the front end of mobile armature 46, at the trip spring 48 that on the projected direction of mobile armature 46 mobile armature 46 is applied active force between yoke iron slice 44 and fastener 49.
At this, on the radial line direction with permanent magnet 45 magnetized situations under, the magnetic flux that permanent magnet 45 produces is by path RB11.Therefore, magnetic resistance is reduced and make permanent magnet 45 or magnetic flux that electromagnet produces by armature, thereby can realize the miniaturization of electromagnetic release, and, can improve the versatility of electromagnetic release and environment resistant.
Fig. 5 is the sectional view of schematic configuration of the electromagnetic release of expression the 4th execution mode of the present invention.
In Fig. 5, coil 102 is wound onto coil with on the coil rack 101, and is incorporated in the yoke 103 that the trihedral by the コ word shape constitutes.On yoke 103, dispose the yoke iron slice 104 with two pin bridge joints of yoke 103, be provided with the fixed armature 110 that constitutes by magnetic material in the bottom of yoke 103.In addition, insert logical coil and give prominence to the mobile armature 106 and fixed armature 110 relative configurations that freely constitutes with coil rack 101, on yoke iron slice 104.At this, be provided with the minor diameter 106b littler than the diameter of fixed armature 110 at the leading section of mobile armature.
In addition, with below the coil rack 101, around fixed armature 110 and mobile armature 106, dispose the permanent magnet 105 of the hollow circle tube that is magnetized along axis direction at coil.At this, be provided with the cylinder 107 that is made of nonmagnetic material of the outstanding hollow circle tube that freely keeps mobile armature 106 between coil is with coil rack 101 and mobile armature 106 and between permanent magnet 105 and the mobile armature 106, mobile armature 106 is inserted logical coils with coil rack 101 and permanent magnets 105 across cylinder 107.In addition, front end at mobile armature 106 is provided with fastener 109, on the projected direction of mobile armature 106 mobile armature 106 is being applied the trip spring 108 of active force and is being used to make back-moving spring 111 that fastener 109 returns all between yoke iron slice 104 and fastener 109.
At this, by leading section the minor diameter 106b littler than the diameter of fixed armature 110 is set at mobile armature 106, under mobile armature 106 and situation that fixed armature 110 is connected, can form the gap at the leading section of mobile armature 106, invade through the space at foreign matters such as coal and dust under the situation on the interface of mobile armature 106 and fixed armature 110, foreign matters such as coal and dust can be arrived in the gap of leading section of mobile armature 106.Therefore, can realize to suppress mobile armature 106 and not increase being connected of mobile armature 106 and fixed armature 110 electromagnetic release area, small-sized and environment resistant excellence with the variation of the attraction of the interface of fixed armature 110.
Fig. 6 (a) is the side view of an example of leading section of the mobile armature of expression an embodiment of the invention, and Fig. 6 (b) is the ground plan of an example of leading section of the mobile armature of expression an embodiment of the invention.
In Fig. 6, be provided with notch 113 at the leading section of mobile armature 112, the diameter of interface 114 that can constitute mobile armature 112 is littler than the diameter of mobile armature 112.
Fig. 7 (a) is the side view of another example of leading section of the mobile armature of expression an embodiment of the invention, and Fig. 7 (b) is the ground plan of another example of leading section of the mobile armature of expression an embodiment of the invention.
In Fig. 7, be provided with chamfered section 116 at the leading section of mobile armature 115, the diameter of interface 117 that can constitute mobile armature 115 is littler than the diameter of mobile armature 115.
Fig. 8 is the sectional view of schematic configuration of the electromagnetic release of expression the 5th execution mode of the present invention.
In Fig. 8, coil 122 is wound onto coil with on the coil rack 121, and is incorporated in the yoke 123 that the trihedral by the コ word shape constitutes.On yoke 123, dispose the yoke iron slice 124 with two pin bridge joints of yoke 123, be provided with the fixed armature 130 that constitutes by magnetic material in the bottom of yoke 123.In addition, insert logical coil and give prominence to the mobile armature 126 and fixed armature 130 relative configurations that freely constitutes with coil rack 121, on yoke iron slice 124.At this, be provided with the minor diameter 126b littler than the diameter of fixed armature 130 at the leading section of mobile armature.In addition, in mobile armature 126, be provided with step difference 126a with the diameter of an opposite side with projected direction than the big mode of diameter of projected direction one side, mobile armature 126 can be made of two different cylinders of diameter at least.
In addition, with below the coil rack 121, around fixed armature 130 and mobile armature 126, dispose the permanent magnet 125 of the hollow circle tube that is magnetized along axis direction at coil.In addition, cylinder 121a, the 121b and the coil that are made of nonmagnetic material of hollow circle tube are provided with integratedly with coil rack 121, cylinder 121a extends between slotting port that is arranged on the mobile armature 126 on the yoke iron slice 124 and mobile armature 126, and cylinder 121b extends between permanent magnet 125 and mobile armature 126.So mobile armature 126 is inserted logical yoke iron slice 124 and permanent magnet 125 respectively across cylinder 121a, 121b.In addition, be provided with fastener 129 at the front end of mobile armature 126, at the trip spring 128 that on the projected direction of mobile armature 126 mobile armature 126 is applied active force between yoke iron slice 124 and fastener 129.
At this, by leading section the minor diameter 126b littler than the diameter of fixed armature 130 is set at mobile armature 126, invade through the space at foreign matters such as coal and dust under the situation on the interface of mobile armature 126 and fixed armature 130, foreign matters such as coal and dust can be arrived in the gap of leading section of mobile armature 126, thereby can suppress the variation of mobile armature 126 and the attraction of the interface of fixed armature 130.
In addition, by between slotting port that is arranged on the mobile armature 126 on the yoke iron slice 124 and mobile armature 126, cylinder 121a being set, under the situation of the slotting port that makes mobile armature 126 slotting logical yoke iron slices 124, the skew of the magnetic resistance that causes by the absorption of mobile armature 126 and yoke iron slice 124 etc. can be reduced, thereby the reliability of electromagnetic release can be improved.
In addition, by coil is formed with cylinder 121a, 121b with coil rack 121, can reduce components number, and reduce the skew of the magnetic resistance that causes by the absorption of mobile armature 126 and yoke iron slice 124 etc., thereby can improve the reliability of electromagnetic release, and can realize the low price of electromagnetic release.
Fig. 9 is the sectional view of schematic configuration of the electromagnetic release of expression the 6th execution mode of the present invention.
In Fig. 9, coil 142 is wound onto coil with on the coil rack 141, and is incorporated in the yoke 143 that the trihedral by the コ word shape constitutes.On yoke 143, dispose the yoke iron slice 144 with two pin bridge joints of yoke 143, be provided with the fixed armature 150 that constitutes by magnetic material in the bottom of yoke 143.In addition, insert logical coil and give prominence to the mobile armature 146 and fixed armature 150 relative configurations that freely constitutes with coil rack 141, on yoke iron slice 144.At this, be provided with the minor diameter 146b littler than the diameter of fixed armature 150 at the leading section of mobile armature.In addition, in mobile armature 146, be provided with step difference 146a with the diameter of an opposite side with projected direction than the big mode of diameter of projected direction one side, mobile armature 146 can be made of two different cylinders of diameter at least.
In addition, with below the coil rack 141, around fixed armature 150 and mobile armature 146, dispose the permanent magnet 145 of the hollow circle tube that is magnetized along the radial line direction at coil.In addition, cylinder 141a, the 141b and the coil that are made of nonmagnetic material of hollow circle tube are provided with integratedly with coil rack 141, cylinder 141a extends between slotting port that is arranged on the mobile armature 146 on the yoke iron slice 144 and mobile armature 146, and cylinder 141b extends between permanent magnet 145 and mobile armature 146.So mobile armature 146 is inserted logical yoke iron slice 144 and permanent magnet 145 respectively across cylinder 141a, 141b.In addition, be provided with fastener 149 at the front end of mobile armature 146, at the trip spring 148 that on the projected direction of mobile armature 146 mobile armature 146 is applied active force between yoke iron slice 144 and fastener 149.
At this, on the radial line direction with permanent magnet 145 magnetized situations under, the magnetic flux that permanent magnet 145 produces is by path RB31.Therefore, magnetic resistance is reduced, and make the magnetic flux of permanent magnet 145 or electromagnet generation pass through armature, thereby can realize the miniaturization of electromagnetic release, and can make the versatility and the environment resistant raising of electromagnetic release.
Claims (7)
1. an electromagnetic release is characterized in that, comprising:
Outstanding freely maintained mobile armature on prescribed direction;
The fixed armature of relative configuration with described mobile armature;
Described mobile armature is applied the trip spring of active force to projected direction;
Described trip spring is remained on the permanent magnet of the state of saving up strength;
By described mobile armature and described fixed armature, constitute yoke from the magnetic circuit of the magnetic flux of described permanent magnet; With
According to the testing result of abnormal current, form the electromagnet of the counter field opposite with the magnetic field of described permanent magnet,
The magnetic flux density of the interface when being connected with described fixed armature by described mobile armature is more than 1 tesla.
2. an electromagnetic release is characterized in that, comprising:
Outstanding freely maintained mobile armature on prescribed direction;
The fixed armature of relative configuration with described mobile armature;
Described mobile armature is applied the trip spring of active force to projected direction;
Described trip spring is remained on the permanent magnet of the state of saving up strength;
By described mobile armature and described fixed armature, constitute yoke from the magnetic circuit of the magnetic flux of described permanent magnet;
According to the testing result of abnormal current, form the electromagnet of the counter field opposite with the magnetic field of described permanent magnet; With
Be arranged on the leading section of described mobile armature, than the little minor diameter of the diameter of described fixed armature.
3. electromagnetic release as claimed in claim 1 or 2 is characterized in that:
Described permanent magnet is made of hollow circle tube, be adsorbed on by magnetic on the axis direction or radial line direction of described hollow circle tube, and described mobile armature is inserted the hollow bulb of logical described permanent magnet.
4. as each described electromagnetic release in the claim 1 to 3, it is characterized in that:
Described yoke comprises: take in described permanent magnet and described electromagnet the コ word shape the trihedral framework and have the monohedron framework of the slotting port of described mobile armature.
5. electromagnetic release as claimed in claim 4 is characterized in that:
Between the slotting port and described mobile armature of described monohedron framework, insert and be connected with the cylinder that constitutes by nonmagnetic material.
6. electromagnetic release as claimed in claim 5 is characterized in that, comprising:
The flange that a side that contacts at described cylindrical and described yoke is provided with; With
Be arranged on the described yoke, take in the step difference of described cylindrical flange.
7. as claim 5 or 6 described electromagnetic releases, it is characterized in that:
Insert and to lead to, constitute integratedly with the coil rack of the described magnet spool that is used to reel at the slotting port of described monohedron framework and the cylinder between the described mobile armature.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006051056 | 2006-02-27 | ||
| JP2006-051056 | 2006-02-27 | ||
| JP2006051056 | 2006-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101030507A true CN101030507A (en) | 2007-09-05 |
| CN101030507B CN101030507B (en) | 2011-03-16 |
Family
ID=38614253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100848152A Expired - Fee Related CN101030507B (en) | 2006-02-27 | 2007-02-27 | Electromagnetic release |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100852300B1 (en) |
| CN (1) | CN101030507B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102473561A (en) * | 2009-09-18 | 2012-05-23 | 三菱电机株式会社 | Releasing type electromagnet device |
| CN101728052B (en) * | 2008-10-29 | 2012-11-28 | 三菱电机株式会社 | Release electromagnet device |
| CN101877294B (en) * | 2009-04-30 | 2013-05-29 | 西门子公司 | Adjustable flux transfer trip |
| CN104821258A (en) * | 2014-01-30 | 2015-08-05 | 松下知识产权经营株式会社 | Remote control relay |
| CN105474335A (en) * | 2013-08-27 | 2016-04-06 | Zf腓德烈斯哈芬股份公司 | Magnet device for locking a gear selector lever of a vehicle in a pre-determined position, method for producing a magnet device, and method for operating a magnet device |
| CN113454747A (en) * | 2018-12-28 | 2021-09-28 | 施耐德电气美国股份有限公司 | Bistable trip unit with trip solenoid and flux transfer reset |
| CN113708162A (en) * | 2021-08-27 | 2021-11-26 | 江苏通领科技有限公司 | Vertical four-silver-point tripping on-off device for socket |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100928934B1 (en) * | 2007-12-13 | 2009-11-30 | 엘에스산전 주식회사 | Trip coil assembly of earth leakage breaker |
| KR101116385B1 (en) | 2010-10-15 | 2012-03-09 | 엘에스산전 주식회사 | Relay |
| KR101496434B1 (en) * | 2013-03-21 | 2015-02-26 | 주식회사 효성 | Bypass switch apparatus for converter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10026813B4 (en) * | 1999-06-24 | 2006-01-19 | Abb Patent Gmbh | Electromagnetic release |
| JP2004172516A (en) * | 2002-11-22 | 2004-06-17 | Mitsubishi Electric Corp | Polarized electromagnet device |
| CN2591762Y (en) * | 2002-12-24 | 2003-12-10 | 天津市百利低压电器有限公司 | Magnetic flux convertor |
-
2006
- 2006-12-26 KR KR1020060133418A patent/KR100852300B1/en not_active IP Right Cessation
-
2007
- 2007-02-27 CN CN2007100848152A patent/CN101030507B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728052B (en) * | 2008-10-29 | 2012-11-28 | 三菱电机株式会社 | Release electromagnet device |
| CN101877294B (en) * | 2009-04-30 | 2013-05-29 | 西门子公司 | Adjustable flux transfer trip |
| CN102473561A (en) * | 2009-09-18 | 2012-05-23 | 三菱电机株式会社 | Releasing type electromagnet device |
| CN105474335A (en) * | 2013-08-27 | 2016-04-06 | Zf腓德烈斯哈芬股份公司 | Magnet device for locking a gear selector lever of a vehicle in a pre-determined position, method for producing a magnet device, and method for operating a magnet device |
| CN105474335B (en) * | 2013-08-27 | 2018-01-26 | Zf腓德烈斯哈芬股份公司 | For by magnet apparatus of the block selecting rod lock of vehicle in predetermined position, the method for manufacturing magnet apparatus and the method for running magnet apparatus |
| CN104821258A (en) * | 2014-01-30 | 2015-08-05 | 松下知识产权经营株式会社 | Remote control relay |
| US9305730B2 (en) | 2014-01-30 | 2016-04-05 | Panasonic intellectual property Management co., Ltd | Remote control relay |
| CN104821258B (en) * | 2014-01-30 | 2017-05-31 | 松下知识产权经营株式会社 | Banked relay |
| CN113454747A (en) * | 2018-12-28 | 2021-09-28 | 施耐德电气美国股份有限公司 | Bistable trip unit with trip solenoid and flux transfer reset |
| CN113708162A (en) * | 2021-08-27 | 2021-11-26 | 江苏通领科技有限公司 | Vertical four-silver-point tripping on-off device for socket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101030507B (en) | 2011-03-16 |
| KR20070089040A (en) | 2007-08-30 |
| KR100852300B1 (en) | 2008-08-14 |
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Owner name: FUJI ELECTRIC MACHINE SYSTEM CO., LTD. Free format text: FORMER OWNER: FUJI ELECTRIC ASSETS MANAGEMENT CO., LTD. Effective date: 20090515 Owner name: FUJI ELECTRIC ASSETS MANAGEMENT CO., LTD. Free format text: FORMER OWNER: FUJI ELECTRIC MACHINE SYSTEM CO., LTD. Effective date: 20090515 |
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Effective date of registration: 20090515 Address after: Tokyo, Japan Applicant after: Fuji electric Asset Management Co. Address before: Tokyo, Japan Applicant before: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. Effective date of registration: 20090515 Address after: Tokyo, Japan Applicant after: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. Address before: Tokyo, Japan Applicant before: Fuji electric Asset Management Co. |
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