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CN101622685A - Hybrid electromagnetic actuator - Google Patents

Hybrid electromagnetic actuator Download PDF

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Publication number
CN101622685A
CN101622685A CN200880006438A CN200880006438A CN101622685A CN 101622685 A CN101622685 A CN 101622685A CN 200880006438 A CN200880006438 A CN 200880006438A CN 200880006438 A CN200880006438 A CN 200880006438A CN 101622685 A CN101622685 A CN 101622685A
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CN
China
Prior art keywords
coil
magnetic
splitter
electromagnetic actuators
actuator
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Granted
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CN200880006438A
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Chinese (zh)
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CN101622685B (en
Inventor
克里斯琴·巴塔伊
菲利普·普鲁沃斯特
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Schneider Electric SE
Schneider Electric Industries SAS
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Schneider Electric SE
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H53/00Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
    • H01H53/01Details
    • H01H53/015Moving coils; Contact-driving arrangements associated therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/066Electromagnets with movable winding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/24Electromagnetic mechanisms
    • H01H71/32Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures
    • H01F7/13Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)

Abstract

The invention relates to an electromagnetic actuator for an electric switching apparatus comprising a magnetised assembly (32, 33), an excitation coil (30) through which an electric control current can flow, the coil and the magnetised assembly being movable relative to each other, a magnetic circuit including a fixed yoke (10) and a mobile part (20), the mobile part being connected to the magnetised assembly or to the coil and defining with the fixed yoke an air gap that is minimum in a first position and maximum in a second position. The actuator includes a magnetic splitter (35, 36) attached to the coil (30) and arranged so that it is partly located between the coil (30) and the magnetised assembly (32, 33) in the first position in order to collect a portion of the magnetic field of the magnetised assembly (32, 33).

Description

Hybrid electromagnetic actuator
Technical field
The present invention relates to a kind of electromagnetic actuators, be used for electric switching system, especially relay, contactor or contactor circuit disconnect type equipment.The invention still further relates to a kind of switchgear that comprises this actuator that is used to activate current collector.
Background technology
These electric switching systems are generally used for switch and are connected to the load of upstream device or the power supply circuits of electric receiver (for example motor).Therefore, described switchgear comprises and coefficient fixed contact of current collector and electromagnetic actuators, described electromagnetic actuators moves described current collector between make position and open position, in described make position, current collector crimping fixed contact is so that supply of current can flow into electric loading, at described open position, thereby current collector separates the power supply that is cut to load with fixed contact.
Described actuator can use various actuating systems based on different magnetic and/or electromagnetic property.For example, the electromagnetic type magneto resistive system is a kind of actuating system that extensively adopts in the contactor.It comprises and is used for the excitation coil of flowing through for Control current, and has variable inductance, comprises the ferromagnetism circuit of standing part and movable part.It also can be by adding the permanent magnet polarization.
Magneto resistive system mainly produces the magnetic force that magnetic resistance change rate caused that the variation because of magnetic air gap value between the open and close position causes.This power be inversely proportional to the magnetic air gap value square.In make position, when air gap hour, consequent engine power (engine force) maximum.Low holding current then is enough to resist the resistance of return mechanism (for example returning spring and contact pressure spring) and with enough contact pressures this system is remained on make position in the coil.
Undoubtedly, magneto resistive system can only provide this high engine power in very little scope (usually less than several millimeters).In the practice, at open position, the air gap value maximum of magnetic circuit.In order to begin to allow current collector shift to the closing stroke of make position, need rough swell stream (inrush current) in the coil to generate the enough power (motive force) that can attract movable part in the magnetic circuit from open position.Then this cause with coil in this height relevant entire system of demand (magnetic circuit and the coil) over dimensioning that shoves.
So-called electric actuation system has fixing iron circuit, magnetising assembly and the coil that can move relative to this magnetising assembly.It can be fixed magnets and moving coil (for example voice coil loudspeaker voice coil), or fixed coil and moving magnet (moving magnet type electromagnet).In this power type actuator, magnetic force mainly is owing to mutual inductance between magnetising assembly and the coil changes caused Laplce's power.This is proportional to the moving electric current of coil midstream, is proportional to the magnetic induction that magnetising assembly produces, and is proportional to the length of the coil that magnetic field that magnetising assembly produces vertically passes through.Therefore this system is provided at the power that has good linear on the whole stroke between the open and close position for given magnetic flux and coil current.
On the contrary, this system can not be used for providing important extra power in the make position vicinity, with excellent contact pressure between the current collector that guarantees switchgear and the fixed contact.Therefore coil current be must significantly strengthen, high power consumption and possible heating problem caused in make position.
The mixing actuator that also has combination magneto resistive system and power driven system advantage at present makes the dynamic curve profile of actuator meet the resistance curve profile of current collector in the contact type equipment more approx.For example, document EP 1655755 has illustrated the hybrid electromagnetic actuator of operating with magnetic resistance pattern or electric model according to the movable part position of actuator.In this actuator, power driven system mainly provides required power during the close stroke of current collector, and magneto resistive system mainly provides closing stroke required extra power in latter stage to press to fixed contact with effective maintenance current collector.
But, the problem of this mixing actuator is to the switching of magnetic resistance type operation highly significant always not from power type operation.In fact, preferably, take place very fastly, with the stroke of the power of optimizing actuator for conversion from a kind of type operations to another kind of type operations.
Therefore, in the closing of contact stroke latter stage of air gap near its minimum value, still flow in coil in the magnetic field of permanent magnet, and this makes the power type operation keep and may upset correct magnetic resistance type operation.
In addition, this magnet permanently produces the attraction of tending to air gap is remained on its minimum value, even in coil under the situation without any electric current.This effect is undesirable when actuator is opened, so its requires to open the contact effectively with bigger elastic recovery device, and this has obviously increased the resistance of actuator.
Summary of the invention
Therefore the objective of the invention is to design a kind of hybrid electromagnetic actuator, can be according to the position of the movable part of actuator with magnetic resistance pattern or electric model operation, but do not have above-mentioned shortcoming.Therefore the present invention must be able to optimize the stroke of the power of actuator, makes the size of the magnetic resistance part of energy consumption minimized and optimization actuator.
Thereby the invention discloses a kind of electromagnetic actuators that is used for electric switching system, comprising: magnetising assembly; Excitation coil, Control current can flow by described excitation coil, and described coil and described magnetising assembly can move relative to each other between the primary importance and the second place; The magnetic circuit that comprises tie-down yoke and movable part, described movable part are connected to described magnetising assembly or described coil, and make that the value of magnetic air gap of described tie-down yoke is minimum and in second place maximum in primary importance.Described actuator is characterised in that, it comprises the magnetic splitter (magnetic splitter) that is fixed to described coil, be arranged such that a part at the described magnetic splitter of described primary importance between described coil and described magnetising assembly, thereby deflection is from the part magnetic field of described magnetising assembly.
Feature according to the present invention, in described primary importance, described magnetic splitter major part is positioned at zone that the surface by coil that faces one another and described magnetising assembly limits, in the described second place, described magnetic splitter major part be positioned at described zone outside.
According to the present invention another feature, in described primary importance, described magnetic splitter all is positioned at described zone.Another feature according to the present invention, in the described second place, described magnetic splitter all be positioned at described zone outside.
According to first embodiment, described magnetising assembly is connected to described tie-down yoke, and described coil (30) is connected to the movable part of described magnetic circuit.According to second embodiment, described coil is connected to described tie-down yoke, and described magnetising assembly is connected to the movable part of described magnetic circuit.
Because the present invention, the all or part of magnetic field of in coil, flowing that described magnetic splitter can guide magnetising assembly to produce on specific direction, make, particularly, near make position, less disturbance is caused to magneto resistive system in this magnetic field, thereby when opening actuator, do not having under the situation of coil current, reducing the attraction that this magnetic field produces.
The invention still further relates to a kind of electric switching system, comprise and the coefficient fixed contact of current collector, be used for the power supply of switch, it is characterized in that at least one above-mentioned electromagnetic actuators, be used to activate described current collector electric loading.
Description of drawings
Other features and advantages of the present invention can become obvious from the description of the given embodiment of following connection with figures, wherein:
Fig. 1 illustrates the existing cutaway view that does not have the mixing actuator of magnetic splitter,
Fig. 2 illustrates the cutaway view according to first embodiment of mixing actuator of the present invention, and it is in the close position,
Fig. 3 illustrates the actuator of the Fig. 2 that is shown in an open position,
Fig. 4 has drawn the modification of the actuator of Fig. 2 in detail,
Fig. 5 and 6 expressions are according to the present invention, are in the cutaway view of second embodiment of the mixing actuator of closed and open position respectively,
Fig. 7 briefly shows the force curve according to mixing actuator of the present invention.
Embodiment
Fig. 1 illustrates the existing hybrid electromagnetic actuator of example used in contactor, contactor circuit decoupler or the relay-type electric switching system.As previously mentioned, this actuator has made up the advantage of magneto resistive system and power driven system, thereby better actuator dynamic curve outline is arrived the resistance curve profile.
It comprises the magnetic circuit of being made and comprised tie-down yoke 10 and movable part 20 by ferromagnetic material.Tie-down yoke 10 has sidepiece and the core of being made up of two sides 12,13 15, and its assembly stands in the common substrate 14.Core 15 is completely or partially centered on by excitation coil 30, when Control current flows through excitation coil 30, and the offset axis X translation longitudinally of described excitation coil 30.Core 15 and coil 30 can non-ly have rectangle or circular cross section substantially.Electric equipment comprise with move by actuator with the coefficient fixed contact of moving contact.
The movable part 20 of magnetic circuit is made up of for example simple moving blade (moving blade) 20.Equivalently, this movable part 20 also can have and the similar structure of tie-down yoke, has the side that faces tie-down yoke and the side and the core of core, as structure common in the contactor.Movable part 20 is mechanically connected to excitation coil 30 by the jockey of the various routines that do not describe in detail here.Moving blade 20 is mechanically connected to coil 30 by unshowned various conventional jockey here.The current collector (not shown) of equipment and movable part 20 mechanical couplings.Movable part 20 and coil 30 are therefore along X-axis displacement between first make position and second open position, and wherein in first make position, current collector presses described fixed contact, and in second open position, the fixed contact of current collector slave unit is separated.Magnetic circuit has the air gap E that forms by towards the space between the different surfaces of moving blade 20 and tie-down yoke 10.This air gap has maximum at open position, has minimum value in make position.
Unshowned return mechanism (for example spring) can make actuator switch to open position from make position.Also can realize that easily this opens mobile by applying in the opposite direction electric current in the coil.
This actuator also comprises by two magnets 32 and 33 magnetising assemblies of forming, and the length travel axle X of magnet 32,33 relative coils 30 is respectively fixed to the inwall of side 12,13 and symmetrically towards coil.The magnetized axis of magnet 32,33 is vertical and symmetry with respect to X-axis, and or towards X-axis, or in contrast to X-axis.The sense of current that the magnetized axis direction of selection magnet 32,33 and coil midstream move is to obtain required the moving of " coil 30 and movable part 20 " assembly.
Moving blade 20 is along mobile be actuator the stroke open position and make position between of X-axis with respect to tie-down yoke 10.For switching to make position, allow electric current in coil 30, flow from open position.Below producing then:
-first magnetic flux the Br that generates by the magneto resistance effect of actuator.This magnetic resistance flux Br produces the power Fr make the moving blade displacement, and on the surperficial S of magnetic air gap, the ampere-turn n*I that is provided by coil 30 is provided this power Fr, and be inversely proportional to by this air gap generate apart from E square.Therefore this power and the mobile of actuator are nonlinear correlations.It is obviously much bigger near the make position of distance E minimum.
-generate the second magnetic flux Be by the electrokinesis of actuator.This flux Be produces the Laplce's power Fe that tends to along the X-axis moving coil.This power Fe is proportional to the current strength I that flows in the coil 30, the magnetic field B of magnet 32,33 generations and the loop length L that magnetic field is vertically passed through.Therefore this power and the mobile of actuator are linear correlations, and constant relatively on the whole stroke of actuator.
In Fig. 1, the magnetic flux Br and the Be of closed position is shown.In this position, air gap has the corresponding minimum value E of remaining air gap that keeps with structure, and is saturated to avoid actuator.Flux Br flows through between the mobile yoke 20 and tie- down yoke 15,14,12 (or 13) of actuator, by the air gap E of actuator.Via 15,14,12 (or 13) this part wraparound of actuator and on the other hand via before actuator 15, this part wraparound of E, 20, E, 12 (or 13), flux Be is through the utmost point S-N of magnet 32 (or 33) and perpendicular to offset axis X ground process coil 30 on the one hand.
Fig. 1 is illustrated in make position, and in the mobile yoke 20 of actuator, flux Be can have the direction opposite with flux Br, and this influences the effect of the contact pressure of current collector unfriendly.In addition, even in coil, there is not electric current, the magnetic field of permanent magnet 32,33 also generates the attraction that the air gap E between mobile yoke 20 and the tie-down yoke (core 15, side 12,13) is remained on its minimum value, and this power must be overcome in opening of actuator moved.In addition, in off-position, magnetic resistance flux Br partly flows through magnet 32,33 and does not pass through air gap E, and this will reduce the effect of the ampere-turn n*I of coil 30.
Therefore the present invention proposes to increase the magnetic splitter of being made and be fixed to excitation coil by ferromagnetic material (for example mu-metal (mu-metal) or iron material) to mixing actuator.This magnetic splitter is arranged in all or part of magnetic field of the make position deflection of actuator from magnetising assembly, makes that this magnetic field can not flowing through coil.
First embodiment is shown in Fig. 2 and 3, and wherein magnetic splitter is made up of two plates 35,36 that are fixed to moving coil 30 outer walls with respect to X-axis symmetrically.Thereby two plates 35,36 move with coil 30.Shown in actuator and Fig. 1 be identical type.According to the present invention, magnetic splitter is arranged in and ground, the corresponding primary importance of the make position top of actuator (see figure 2) between coil 30 and magnetising assembly 32,33.
In this primary importance, magnetic splitter is mainly between coil and magnetising assembly, and promptly magnetic splitter 35 (or 36) mainly is positioned at the zone 37 (or 38) that the surface by coil 30 that faces one another and magnetising assembly 32 (or 33) limits.Preferably, on the make position of actuator, magnetic splitter 35 (or 36) is positioned at 37 (or 38), zone fully.
On the contrary, with the corresponding second place (see figure 3) of actuator open position, magnetic splitter is not mainly between coil and magnetising assembly, and promptly magnetic splitter 35 (or 36) major part is positioned at outside the zone 37 (or 38) that the surface by coil 30 that faces one another and magnetising assembly 32 (or 33) limits.Preferably, on the open position of actuator, magnetic splitter 35 (or 36) all is positioned at outside 37 (or 38), zone.
In the time of outside magnetic splitter 35 major parts are positioned at zone 37, because almost or fully can not be subjected to magnetic splitter 35 deflections from the magnetic field line of magnet 32, its almost not influence of operation to mixing actuator.This means, at open position, roughly the same among Fig. 2 and 3 operation and Fig. 1.Therefore Fig. 3 illustrates, at open position, given high air gap value E when electric current flows in coil 30, makes the electronic magnetic flux Be of Laplce's power Fe of " coil 30+ moving blade 20 " assembly displacement produce active force by flow through element 32/33,30,15,14,12/13 and generation.
But, when magnetic splitter 35 mainly is positioned at the zone 37 the time, then it will be from the magnetic field line deflection major part of magnet 32, so that they point to specific direction, that is, towards nearest magnetic material, in this case towards mobile yoke 20, this means that as long as the magnetic splitter unsaturation part of the flux Be that flows along route 32,30,15,14,12 becomes and can ignore.Like this, the major part of flux Be is no longer vertically passed coil 30, and this makes that Laplce's power Fe is reduced very significantly.Therefore, in make position, the power that acts on the mobile yoke 20 still is mainly reluctance force Fr.
In addition, magnetic splitter 35 (or 36) also has the effect of no longer passing through the air gap between core 15 and mobile yoke 20 from the magnetic field of permanent magnet 32 (or 33).Like this, do not having under the situation of coil current, the power that produces because of magnetising assembly is lower than the situation in the same actuator that does not comprise magnetic splitter.
A modification of the actuator among Fig. 2 shown in Figure 4.In this modification, magnetic splitter comprise two elements 35 making by ferromagnetic material ', 36 ', two elements 35 ', 36 ' relatively axle X are fixed to the outer wall of moving winding 30 symmetrically.The shape of element 35 ' (or 36 ') and plate 35 (or 36) difference of Fig. 2 are not comprise and can make magnetic splitter as far as possible near the flange of the side 12 (or 13) of tie-down yoke 10.
The purpose of this flange is: in make position, magnetic splitter 35 (or 36) than the moving blade 20 of magnetic circuit more near the side 12 (or 13) of tie-down yoke 10.This means that in make position, the air gap between magnetic splitter 35 (or 36) and the side 12 (or 13) is less than the air gap between magnetic splitter 35 (or 36) and the moving blade 20.
Like this, because this modification, directly be redirected and wraparound towards tie-down yoke 10 in the magnetic field of magnetic splitter self-magnetization in the future assembly, and need not pass through moving blade 20.Therefore magnetic field is made it no longer pass through at air gap between core 15 and the movable part 20 or the air gap between side 12,13 and movable part 20 by short circuit.Do not having under the situation of coil current, the influence of the attraction of magnetising assembly further reduces, and this is convenient to more realize that opening of actuator is mobile.
Fig. 5 and 6 illustrates second embodiment according to mixing actuator of the present invention.This actuator comprises the magnetic circuit of being made by ferromagnetic material, and it comprises the movable part 41 of tie-down yoke 40 and center piston core pattern, and movable part 41 is offset axis X translation longitudinally.Fixing excitation coil 44 is positioned at tie-down yoke 40 sides.Mobile core 41 and coil 44 be non-to have rectangle or circular cross section substantially.
Actuator comprises also that by two magnets 42 and 43 magnetising assemblies of forming magnet 42,43 relative length travel axle X are fixed to movable part 41 sides symmetrically.The magnetized axis of magnet 42,43 is the vertical and symmetry of axle X relatively, or towards axle X or deviate from an X and point to.So, the movable part 41 of magnetic circuit is connected to magnetising assembly 42,43.
Like this, in two embodiment, coil all still can move relative to magnetising assembly.But in this second embodiment, coil 44 is fixing now, and magnet 42,43 is removable.This layout advantage is to have fixing coil, and this has simplified its circuit and has connected.
This actuator also comprises magnetic splitter, has two elements 45,46 of making and be fixed to coil 44 inwalls by ferromagnetic material (for example mu-metal or iron material) and forms.As first embodiment, in primary importance or make position, magnetic splitter 45 (46) major parts are positioned at the zone that the surface by coil 44 that faces one another and magnetising assembly 42 (43) limits.On the contrary, at the second place or open position, magnetic splitter 45 (46) major parts are positioned at outside the zone that the surface by coil 44 that faces one another and magnetising assembly 42 (43) limits.
The shape that example shown in Fig. 5 and 6 illustrates magnetic splitter 45 (46) helps in make position, for the more approaching mobile core 41 of the tie-down yoke 40 of magnetic splitter 45 (46) comparable magnetic circuits.This means that in make position, the air gap between magnetic splitter 45 (46) and the mobile core 41 is less than the air gap between magnetic splitter 45 (46) and the tie-down yoke 40, thereby opening the influence that reduces when mobile from the magnetic field of magnet 42,43.
As shown in Figure 6, at open position, the behavior of described actuator is similar to electric actuator, and flux Be vertically passes coil 44 and process tie-down yoke 40, mobile core 41 and magnet 42,43.In make position, the magnetic air gap minimum between tie-down yoke 40 and the core 41, and magnetic resistance flux Br is by tie-down yoke 40 and core 41.But, by means of magnetic splitter 45,46, from the magnetic field of magnet 42,43 being redirected by major part and directly turning back to core 41, and without coil 44, and without the air gap between tie-down yoke 40 and the core 41.
Because the present invention, can optimize the dynamic curve that produces by actuator according to the stroke X of the movable part of magnetic circuit, thus the resistance of approximate electric equipment best.An example of this curve provides in Fig. 7, and the different power F as the function of stroke X are shown in the drawings.Curve F1 represents the conventional resistance of contactor or relay-type switchgear.Resistance F1 is in open position minimum (closed condition among this moment stroke X maximum---Fig. 7), the threshold value of the point that contacts between the current collector that is increased to designation equipment gradually and the fixed contact, then along with the compression of the contact pressure spring of current collector correspondingly stroke X diminish and continue to increase (until make position---the open mode among Fig. 7) more quickly.
Curve F2 illustrates the power of the conventional actuator of power type.This power F2 is steady on the whole stroke of movable part, but can not overcome the extra resistance near make position the time.Curve F3 illustrates the power of the conventional actuator of magnetic resistance type.This power F3 is very high near make position, but increases and reduce rapidly along with the air gap of actuator magnetic circuit afterwards.Curve F4 illustrates the power according to mixing actuator of the present invention, and it is the combination of near the open position power F2 (because big air gap, the influence of F3 can be ignored) and the make position power F3 (by means of the use of magnetic splitter) near.
The adjustment of the shape of magnetising assembly and magnetic splitter, size and position can be used for correctly being provided with the constant and the progress of the switching between magnetic resistance type operation and the power type operation.These are provided with the action required of the electric equipment that must be suitable for comprising this actuator.
In addition, the cooperation of magnetic flux splitter also can be implemented in every part that the mixing actuator was measured and optimized to working range independently of each other, promptly is used for the curve F3 of magnetic resistance part and is used for voice coil loudspeaker voice coil curve F2 partly, and this has simplified design and debugging work.
In addition, the present invention can obtain the power stroke F4 that comparative resistance curve F1 optimizes the electric current of control coil is keeping constant situation on the whole actuator range under, and this has significantly reduced the complexity of coil electric control.
Obviously, under the situation that does not deviate from framework of the present invention, can imagine other modification and details, even consider the application of equivalent device.

Claims (11)

1. electromagnetic actuators that is used for electric switching system comprises:
-magnetising assembly (32,33,42,43),
-excitation coil (30,44), Control current can flow by described excitation coil, and described coil and described magnetising assembly can move relative to each other between the primary importance and the second place,
-comprising the magnetic circuit of tie-down yoke (10,40) and movable part (20,41), described movable part is connected to described magnetising assembly or described coil, and forms a magnetic air gap with described tie-down yoke, and the value of described magnetic air gap is minimum and in second place maximum in primary importance,
It is characterized in that, described actuator comprise the magnetic splitter that is fixed to described coil (30,44) (35,36,35 ', 36 ', 45,46), be arranged such that:
-in described primary importance, described magnetic splitter to small part is positioned at the zone (37,38) that the surface by described coil (30) that faces one another and described magnetising assembly (32,33) limits, thereby deflection is from a part of magnetic field of described magnetising assembly (32,33,42,43)
-in the second place, described magnetic splitter major part is positioned at outside the described zone (37,38).
2. electromagnetic actuators according to claim 1 is characterized in that, in described primary importance, described magnetic splitter (35,36,35 ', 36 ') major part is positioned at described zone (37,38).
3. electromagnetic actuators according to claim 1 is characterized in that, in described primary importance, described magnetic splitter (35,36,35 ', 36 ') all is positioned at described zone (37,38).
4. electromagnetic actuators according to claim 1 is characterized in that, in the described second place, described magnetic splitter (35,36,35 ', 36 ') all is positioned at outside the described zone (37,38).
5. according to any described electromagnetic actuators in the claim 1 to 4, it is characterized in that described magnetising assembly (32,33) is connected to described tie-down yoke (10), and described coil (30) is connected to the movable part (20) of described magnetic circuit.
6. electromagnetic actuators according to claim 5, it is characterized in that, described tie-down yoke (10) comprises sidepiece (12,13) and core (15), described magnetising assembly is made up of two permanent magnets (32,33) that the offset axis (X) of described relatively coil is fixed to described sidepiece (12,13) symmetrically, and described magnetic splitter is made up of two elements of the ferromagnetic material that is fixed to described coil (30) outside (35,36,35 ', 36 ').
7. electromagnetic actuators according to claim 6, it is characterized in that, described magnetic splitter (35 ', 36 ') is arranged such that: in described primary importance, the air gap between the sidepiece of described magnetic splitter and described tie-down yoke (12,13) is less than the air gap between the movable part (20) of described magnetic splitter and described magnetic circuit.
8. according to any described electromagnetic actuators in the claim 1 to 4, it is characterized in that described coil (44) is connected to described tie-down yoke (40), and described magnetising assembly (42,43) is connected to the movable part (41) of described magnetic circuit.
9. electromagnetic actuators according to claim 8, it is characterized in that, the movable part of described magnetic circuit comprises mobile core (41), described magnetising assembly is fixed to described two permanent magnets (42,43) that move core (41) symmetrically by the offset axis (X) relative to described coil to be formed, and described magnetic splitter is made up of two elements (45,46) that are fixed to the inboard ferromagnetic material of described coil (44).
10. electromagnetic actuators according to claim 9, it is characterized in that, described magnetic splitter is arranged such that: in described primary importance, the air gap between described magnetic splitter and the described mobile core (41) is less than the air gap between described magnetic splitter and the described tie-down yoke (40).
11. an electric switching system, comprise with the current collector acting in conjunction with the fixed contact of switch to the power supply of electric loading, it is characterized in that it comprises as any described at least one electromagnetic actuators in the above claim, to activate described current collector.
CN2008800064383A 2007-02-27 2008-02-13 Hybrid electromagnetic actuator Active CN101622685B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0753517 2007-02-27
FR0753517A FR2913142B1 (en) 2007-02-27 2007-02-27 HYBRID ELECTROMAGNETIC ACTUATOR.
PCT/EP2008/051734 WO2008107273A1 (en) 2007-02-27 2008-02-13 Hybrid electromagnetic actuator

Publications (2)

Publication Number Publication Date
CN101622685A true CN101622685A (en) 2010-01-06
CN101622685B CN101622685B (en) 2012-03-14

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Country Link
EP (1) EP2126951B1 (en)
JP (1) JP5179516B2 (en)
KR (1) KR101362009B1 (en)
CN (1) CN101622685B (en)
FR (1) FR2913142B1 (en)
WO (1) WO2008107273A1 (en)

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CN105321742A (en) * 2014-07-28 2016-02-10 苏州磁明科技有限公司 Solenoid linear actuator and manufacturing method thereof
CN106574850A (en) * 2014-07-23 2017-04-19 微-埃普西龙测量技术有限两合公司 Actuator sensor arrangement and method for application with such an arrangement
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CN105321742A (en) * 2014-07-28 2016-02-10 苏州磁明科技有限公司 Solenoid linear actuator and manufacturing method thereof
CN105321742B (en) * 2014-07-28 2019-07-09 苏州磁明科技有限公司 Solenoid Linear actuator and preparation method thereof
CN110849613A (en) * 2019-03-29 2020-02-28 华南理工大学 Dynamic characteristic testing device and system for voice coil actuator
CN110849613B (en) * 2019-03-29 2021-07-20 华南理工大学 Dynamic characteristic testing device and system for voice coil actuator

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FR2913142B1 (en) 2009-05-08
WO2008107273A1 (en) 2008-09-12
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CN101622685B (en) 2012-03-14
KR20090115950A (en) 2009-11-10

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