CN102215013A - Method and device for acquiring variation magnetic fields by virtue of interaction of permanent magnet and soft magnets - Google Patents

Abstract

The invention relates to a method and device for acquiring variation magnetic fields by virtue of interaction of a permanent magnet and soft magnets. The method is mainly characterized in that the inherent characteristics of the permanent magnet and the soft magnets are exerted fully, so that the permanent magnet is subjected to magnetization together with the two soft magnets which are separated magnetically mutually in a close or small gap mode, thus the soft magnets guide magnetic energy at two poles of the permanent magnet to the leading-out ends of the two poles; and a magnetic pathway which is formed by the permanent magnet and the soft magnets and is subjected to short circuit periodically is utilized to change the magnetic field intensity of the leading-out ends of magnetic fields of the soft magnets, or the relative positions of the permanent magnet and the soft magnets are controlled and changed periodically so as to change the magnetic polarity and magnetic field intensity of the leading-out ends of the soft magnets. On the basis, the invention also provides a method which is used for reducing the magnetic resistance and producing the variation magnetic fields with high energy efficient. The invention provides devices for realizing replacement and pulsation of the variation magnetic fields. The devices can lead out and use the inherent magnetic energy of the permanent magnet effectively, have higher EER (energy efficiency ratio) and can form various valuable variation magnetic field application systems.

Description

Permanent magnet and soft magnetic bodies interact and obtain the method and the device of variation magnetic field

Technical field

The present invention relates to the electromagnetic application technical field, especially permanent magnet and soft magnetic bodies interact and the method and the device thereof in the magnetic field that changes.

Background technology

As everyone knows, permanent magnet is made by hard magnetic material, and permanent magnet has that high-coercive force, remanent magnetism are big, the magnetization back is difficult for demagnetization, and soft magnetic bodies is to be made by soft magnetic material, and coercive force is low, remanent magnetism is low, easy magnetization, easily degaussing.Permanent magnet magnetizable soft magnetic bodies around it makes soft magnetic bodies also present magnetic polarity.Air gap between permanent magnet and the soft magnetic bodies is more little, and permanent magnet is strong more to the magnetization of soft magnetic bodies.There is magnetostatic energy between the soft magnetic bodies that is magnetized and the permanent magnet, makes to have magnetic field suction between permanent magnet and the soft magnetic bodies,, then need to add certain external force to overcome magnetic attraction between permanent magnet and the soft magnetic bodies if permanent magnet is separated with soft magnetic bodies.

In the electromagnetic application field, the variation magnetic field is the notion that often runs into, and also is actual needed a kind of form of energy.The variation magnetic field can be divided into alternate magnetic field and pulsatile change magnetic field, so-called alternate magnetic field is meant that the polarity of magnetic pole is done alternate, magnetic field intensity is also done size variation simultaneously, so-called pulsatile change magnetic field is meant that the polarity of magnetic pole is constant, and just magnetic field intensity is done size variation.The variation magnetic field is the necessary condition of motor operation, the AC and DC motor is to produce excitation field by the electric current in the stator coil to form rotating magnetic field, with the current excitation magnetic field interaction in the rotor coil, is converted to mechanical energy to realize electric energy.And permanent magnet direct current motor, rotating magnetic field also is to be produced by exciting current in the stator coil, rotor then is to substitute coil or baffle with permanent magnetic material, thereby has reduced the copper loss in the electromagnetic conversion, iron loss greatly, so Efficiency of Permanent Magnet Direct Current is improved significantly.No matter be the AC and DC motor, or permanent magnet direct current motor, the precondition of rotor rotation is to need rotating magnetic field, traditional rotating magnetic field all is to produce by feed alternating current in coil.When alternating current fed coil, because there is line loss in coil itself, is also had iron loss by coil-induced magnetized permeability magnetic material, these all had influence on the further raising of motor efficiency.

Summary of the invention

The objective of the invention is to propose a kind of by interacting between permanent magnet and the soft magnetic bodies to obtain the method for variation magnetic field, the method of reluctance force when also having proposed simultaneously to reduce permanent magnet and soft magnetic bodies interaction process, further improve and obtain the usefulness of variation magnetic field by mechanical energy, simultaneously, the present invention gives by permanent magnet and soft magnetic bodies and interacts, to obtain the device in cyclic variation magnetic field than low energy consumption.

For achieving the above object, permanent magnet that the present invention provides and soft magnetic bodies interact and obtain the method for variation magnetic field, this method is given full play to permanent magnet and soft magnetic bodies inherent characteristic, make permanent magnet magnetic isolate soft magnetic bodies generation magnetization in small air gap mode very to magnetic each other to the utmost point, the soft magnetic bodies that is magnetized is directed to paired permanent magnet magnetic energy and the magnetic soft magnetic bodies magnetic field exit of isolating each other, if periodic variation permanent magnet and soft magnetic bodies relative position, the alternate magnetic field that just can obtain magnetic polarity and magnetic field intensity periodically-varied at soft magnetic bodies magnetic field exit; Perhaps make permanent magnet two magnetic poles be close to two magnetic isolation soft magnetic bodies each other, permanent magnet can magnetize soft magnetic bodies, the soft magnetic bodies that is magnetized is directed to the soft magnetic bodies magnetic field exit of magnetic isolation each other with permanent magnet magnetic energy, if one " magnetic circuit by-pass cock " is set between two soft magnetic bodies, by periodically " opening " or " closing " be magnetized flux path of soft magnetic bodies, just can obtain that magnetic polarity is constant, the pulsatile change magnetic field of magnetic field intensity periodically-varied at soft magnetic bodies magnetic field exit.The method has made full use of the characteristic that permanent magnet magnetizes soft magnetic bodies fast, simultaneously also made full use of the closed that the magnetic line of force had, non-intersect property and do one's utmost to stretch and shorten own path trend characteristic, guide and retrain the magnetic line of force that results from permanent magnet with soft magnetic bodies, the permanent magnet magnetic energy is gathered in soft magnetic bodies magnetic pole exit is used again.The relatively easy machine-shaping of soft magnet material, so soft magnetic bodies magnetic pole exit then can be according to actual requirement, needed shape is processed in design.This method makes soft magnetic bodies become dexterously and transmits the intrinsic magnetic energy media of permanent magnet, make the inner intrinsic magnetic energy of permanent magnet be directed into the various occasions of being convenient to do work to external world, suitably change and adjust shape, size and the material of soft magnetic bodies, just can obtain required magnetic characteristic at soft magnetic bodies magnetic pole exit place by the permanent magnet conduction.

In foregoing invention method overall technological scheme, the present invention has provided a kind of concrete permanent magnet and the method for variation magnetic field is obtained in the soft magnetic bodies interaction, these method characteristics are, with having permanent magnet and two be isolated from each other soft magnetic bodies common structure one " the magnetic field alternate assembly " of a magnetic to the utmost point, two soft magnetic bodies that are isolated from each other are symmetricly set on around the permanent magnet in this assembly, has minimum air gap between permanent magnet and two soft magnetic bodies, two soft magnetic bodies of permanent magnet magnetizable, soft magnetic bodies has played the effect of the guiding and the constraint magnetic line of force, make the magnetic field exit of two soft magnetic bodies can present the magnetic characteristic of permanent magnet, if produce relative motion between permanent magnet and the soft magnetic bodies, can change the magnetization effect of permanent magnet to soft magnetic bodies, under no external force effect situation, the magnetic line of force can be in the most straight or short status in the magnetic circuit that permanent magnet and soft magnetic bodies constitute, this moment, this assembly was in " magnetic stable state ", the magnetic field intensity that obtains according to different version at exit place, the magnetic field of two soft magnetic bodies goes to zero or is maximum, when the external force effect, make that relative position changes between permanent magnet and the soft magnetic bodies, permanent magnet also changes the magnetic induction intensity of soft magnetic bodies thereupon, thereby the magnetic field intensity of this assembly soft magnetic bodies magnetic field exit is also changed thereupon, this moment, this assembly was in " magnetic metastable condition ", when external force continuation effect, make between permanent magnet and two soft magnetic bodies closed magnetic line of force be drawn as the longest or torsion resistance when maximum, this assembly then is in " magnetic labile state ", at this moment, the magnetic field intensity that obtains according to different version at exit place, the magnetic field of two soft magnetic bodies is maximum or goes to zero, between " the magnetic stable state " and " magnetic labile state " of this assembly, exist many " magnetic metastable conditions ", these " magnetic metastable conditions " are that the relative position by permanent magnet and soft magnetic bodies is determined, this assembly changes to " magnetic labile state " from " magnetic stable state ", need the external force acting, promptly for external influence power, this assembly exists " reluctance force ", this assembly changes to " magnetic stable state " from " magnetic labile state " does not then need the external force acting, this assembly self possesses " magnetic stable state " trend that returns to, promptly for external influence power, this assembly exists " magnetic restoring force ", if continue, periodically apply external force, make permanent magnet with respect to the relative motion of soft magnetic bodies generating period, make institute's externally applied forces constantly, periodically overcome " reluctance force " of this assembly, permanent magnet will the cyclic magnetization soft magnetic bodies, will produce the alternate magnetic field that magnetic polarity and magnetic field intensity are all done periodically-varied at the magnetic field of two soft magnetic bodies exit.The Changing Pattern of this periodicity alternate magnetic field magnetic field intensity curve is corresponding from the variation track of " magnetic stable state-magnetic metastable condition-magnetic labile state-magnetic metastable condition-magnetic stable state " with this assembly, thereby realized by periodic relative motion between permanent magnet and the soft magnetic bodies, guide and retrain the magnetic line of force by the fixedly soft magnetic bodies that sets again, and then the magnetic field performance parameter of permanent magnet is transported to the magnetic pole exit of the soft magnetic bodies that meets instructions for use.This changes of magnetic field assembly is at external influence power, periodically present " reluctance force " of magnetic line of force lengthening and bending and " the magnetic restoring force " that the magnetic line of force shortens and stretches, promptly this changes of magnetic field assembly periodically presents " magnetic stable state " and " magnetic labile state ", external influence power need periodically overcome " reluctance force " just can maintain generation cyclic variation magnetic field, soft magnetic bodies magnetic pole exit place, so the Energy Efficiency Ratio of this assembly is lower.

Based on above-mentioned structure " magnetic field alternate assembly " method, between described " magnetic field alternate assembly " paired soft magnetic bodies, be provided with by " magnetic circuit by-pass cock ", so constitute by a kind of " adjustable magnetic field alternate assembly ", when this " magnetic circuit by-pass cock " when being in full open position, quilt " magnet short-cut path " between the paired soft magnetic bodies, all through getting back to the permanent magnet S utmost point by " magnetic circuit by-pass cock " flux path, the magnetic field intensity of this state soft magnetic bodies magnetic field exit is minimum to the magnetic line of force that the permanent magnet N utmost point produces; When this " magnetic circuit by-pass cock " when being in buttoned-up status, magnetic circuit between the soft magnetic bodies is by " disconnection " in pairs, the magnetic line of force that the permanent magnet N utmost point produces can't be got back to the permanent magnet S utmost point through this " magnetic circuit by-pass cock ", and the magnetic field intensity of this state soft magnetic bodies magnetic field exit is maximum; When this " magnetic circuit by-pass cock " is in when not exclusively opening the intermediateness of also not closing, the part magnetic power that the permanent magnet N utmost point produces is got back to the permanent magnet S utmost point through " magnetic circuit by-pass cock ", the magnetic field intensity of this state soft magnetic bodies magnetic field exit is between maximum and minimum, should " magnetic circuit by-pass cock " there be following two methods to realize, the first, with the soft magnetic bodies cross-over connection that plays the bridging effect between paired soft magnetic bodies, and guarantee that the soft magnetic bodies and the permanent magnet that play the bridging effect make up the minimum reluctance value of the magnetic resistance of flux path much smaller than permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, and magnet exciting coil is set playing bridging effect soft magnetic bodies periphery, realizes regulating and controlling exit variation magnetic field, soft magnetic bodies magnetic field by changing exciting current in the input magnet exciting coil; The another kind of form of " magnetic circuit by-pass cock " is, between the soft magnetic bodies the rotatable soft magnetic bodies of non-circular shape is being set in pairs, when rotatable soft magnetic bodies rotates to different angles, itself and in pairs the size of gaps between the soft magnetic bodies do corresponding change, it produces different influences to magnetic circuit between the paired soft magnetic bodies, because the magnetic resistance of permanent magnet and the flux path that rotatable soft magnetic bodies forms that plays the bridging effect is much smaller than the minimum reluctance value of permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, when rotatable soft magnetic bodies and in pairs the air gap between the soft magnetic bodies for hour, soft magnetic bodies is the magnet short-cut path state in pairs, the magnetic line of force that the permanent magnet N utmost point sets out has been got back to the permanent magnet S utmost point through rotatable soft magnetic bodies, at this moment, the magnetic field intensity at exit place, soft magnetic bodies magnetic field is minimum in pairs, when the air gap between rotatable soft magnetic bodies and the paired soft magnetic bodies is maximum, do not constitute flux path between the soft magnetic bodies in pairs, the magnetic field intensity at exit place, soft magnetic bodies magnetic field is maximum in pairs, size of gaps is between intermediateness between rotatable soft magnetic bodies and paired soft magnetic bodies, then have the part magnetic line of force by rotatable soft magnetic bodies, change the geometry of rotatable soft magnetic bodies, can effectively change the rule that air gap changes between rotatable soft magnetic bodies and the paired soft magnetic bodies, and then can be adjusted to soft magnetic bodies magnetic field exit change of magnetic field strength rule.

Based on the above-mentioned structure " magnetic field alternate assembly " and " the adjustable magnetic field alternate assembly " method of structure, two magnetic properties identical " magnetic field alternate assembly " or " adjustable magnetic field alternate assembly " are carried out the magnetic isolation, and the moving component in this two " assembly " coupled together by same interlinked mechanism, when interlinked mechanism connects moving component, make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", " assembly " acts on and is tending towards minimum making a concerted effort on the same interlinked mechanism to make these two, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so just constituted a kind of being referred to as " lower resistance alternate magnetic field units ", in this unit, moving component in " assembly " constantly, when periodically moving, in an assembly, form the part of " reluctance force " can be by another assembly in " magnetic restoring force " offset, like this, just can produce two groups at four the soft magnetic bodies magnetic field of two couples of this " lower resistance alternate magnetic field units " exit and have dephased variation magnetic field, the moving component of keeping this alternate magnetic field units needed external force needed external force can the motion of single much smaller than keeping " assembly " moving component the time of moving, just can be with less mechanical energy input, to obtain the higher relatively alternate magnetic field of Energy Efficiency Ratio.

In foregoing invention method and technology scheme, the present invention has provided another kind of concrete permanent magnet and the method for variation magnetic field is obtained in the soft magnetic bodies interaction, these method characteristics are, make up one " magnetic field pulsatile change assembly " jointly with a permanent magnet and two fixedly soft magnetic bodies that are isolated from each other and one " magnetic circuit by-pass cock ", two fixedly soft magnetic bodies that are isolated from each other are close to two magnetic poles of permanent magnet, two fixedly soft magnetic bodies be provided with the magnetic field exit, " magnetic circuit by-pass cock " is arranged at two fixedly between the soft magnetic bodies, should " magnetic circuit by-pass cock " there be following two methods to realize, the first, with the soft magnetic bodies cross-over connection that plays the bridging effect between paired soft magnetic bodies, and guarantee that the soft magnetic bodies and the permanent magnet that play the bridging effect make up the minimum reluctance value of the magnetic resistance of flux path much smaller than permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, and magnet exciting coil is set playing bridging effect soft magnetic bodies periphery, when exciting current is zero, play the bridging effect the soft magnetic bodies short circuit two fixing soft magnetic bodies, the magnetic line of force of the permanent magnet N utmost point has been got back to the permanent magnet S utmost point through the soft magnetic bodies that plays the bridging effect, at this moment, the magnetic field intensity at exit place, two soft magnetic bodies magnetic field is minimum, when the exciting current direction is determined and is reached rated value, the soft magnetic bodies that plays the bridging effect is magnetized by excitation, the soft magnetic bodies that the magnetic field that is produced can stop the magnetic line of force of the permanent magnet N utmost point to pass through the bridging effect, promptly two fixedly do not reconstruct flux path between the soft magnetic bodies, the magnetic field intensity at exit place, two soft magnetic bodies magnetic field is maximum, when exciting current between the zero-sum rated value, play and have the part magnetic line of force in the soft magnetic bodies of bridging effect and pass through, and make two fixedly soft magnetic bodies magnetic field exit magnetic field intensity corresponding decline is arranged, can realize the fixing regulating and controlling of soft magnetic bodies magnetic field exit variation magnetic field by changing exciting current in the input magnet exciting coil; The another kind of form of " magnetic circuit by-pass cock " is, at two a rotatable soft magnetic bodies of non-circular shape is set between the soft magnetic bodies fixedly, when rotatable soft magnetic bodies anglec of rotation difference, itself and two fixedly also corresponding changes of the size of gaps between the soft magnetic bodies, because the magnetic resistance of permanent magnet and the flux path that rotatable soft magnetic bodies forms that plays the bridging effect is much smaller than the minimum reluctance value of permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, when rotatable soft magnetic bodies and two fixedly the air gap between the soft magnetic bodies for hour, two fixedly soft magnetic bodies be the magnet short-cut path state, the magnetic line of force that the permanent magnet N utmost point sets out is through fixedly soft magnetic bodies and rotatable soft magnetic bodies have been got back to the permanent magnet S utmost point, at this moment, two fixedly the magnetic field intensity at soft magnetic bodies magnetic field exit place be minimum, this state is this assembly " a magnetic stable state ", as rotatable soft magnetic bodies and two when fixedly the air gap between the soft magnetic bodies is maximum, two fixedly do not constitute flux path between the soft magnetic bodies, two fixedly the magnetic field intensity at soft magnetic bodies magnetic field exit place be maximum, this state is this assembly " a magnetic labile state ", when rotatable soft magnetic bodies and two fixedly between the soft magnetic bodies size of gaps between intermediateness, then have the part magnetic line of force by rotatable soft magnetic bodies, change the geometry of rotatable soft magnetic bodies, can effectively change rotatable soft magnetic bodies and two rules that fixedly air gap changes between the soft magnetic bodies, and then can regulate two fixedly soft magnetic bodies magnetic field exit change of magnetic field strength rules, this assembly changes to " magnetic labile state " from " magnetic stable state " needs the external force work done in rotatable soft magnetic bodies, show that promptly this assembly is for external influence power, exist " reluctance force ", and this assembly is got back to the process of " magnetic stable state " from " magnetic labile state ", then do not need the external force work done, this assembly self has the trend that returns to " magnetic stable state " automatically from " magnetic labile state ", it is to realize by the intrinsic magnetic energy storage of permanent magnet that assembly automatically restores to " magnetic stable state ", promptly this assembly exists " magnetic restoring force " for external influence power.

Based on above-mentioned structure " magnetic field pulsatile change assembly " method, identical " " carry out magnetic isolates magnetic field pulsatile change assembly with two magnetic properties, and with the rotation soft magnetic bodies in these two assemblies by coupling together with an interlinked mechanism, when interlinked mechanism connects the rotation soft magnetic bodies, make one " magnetic field pulsatile change assembly " be in " magnetic stable state ", and make another " magnetic field pulsatile change assembly " be in " magnetic labile state ", these two " magnetic field pulsatile change assemblies " are acted on be tending towards minimum making a concerted effort on the same interlinked mechanism, promptly make " reluctance force " and " magnetic restoring force " sum on another " magnetic field pulsatile change assembly " on one " magnetic field pulsatile change assembly " be tending towards minimum, so just constituted a kind of being referred to as " lower resistance pulsatile change magnetic field units ", in this unit, when rotating soft magnetic bodies constantly, when periodically rotating, in an assembly, form the part of " reluctance force " can be by another assembly in " magnetic restoring force " offset, like this, two couple of this " lower resistance pulsatile change magnetic field units " fixedly soft magnetic bodies load magnetic field exit just can produce two groups and have dephased pulsatile change magnetic field, the rotation soft magnetic bodies of keeping this pulsatile change magnetic field units needed external force when rotation soft magnetic bodies rotates in the needed external force just single much smaller than keeping " magnetic field pulsatile change assembly " that rotatablely moves, just can be with less mechanical energy input, to obtain the higher relatively pulsatile change magnetic field of Energy Efficiency Ratio.

For achieving the above object, the present invention has also designed permanent magnet and soft magnetic bodies is obtained the device of variation magnetic field mutually.According to the difference of obtaining variation magnetic field characteristic, the variation magnetic field device is divided into alternate magnetic field device and pulsatile change magnetic field device.Two class devices can further be subdivided into alternate magnetic field component, alternate magnetic field units, alternate field system, alternate magnetic field application system and pulsatile change magnetic field component, pulsatile change magnetic field units, pulsatile change field system, pulsatile change magnetic field application system again by its functional characteristics, syntagmatic.Assembly is basic building block, and assembly constitutes the unit, the unit construction system, and system constitutes application apparatus.

The formation of " alternate magnetic field component " that the present invention provides includes, rotatable permanent magnet, fixing soft magnetic bodies and every magnet, fixedly soft magnetic bodies is two, two fixedly soft magnetic bodies surround two magnetic pole strengths of permanent magnet, two fixedly exist minimum air gap between soft magnetic bodies and the permanent magnet, two are fixedly separated every magnet between the soft magnetic bodies, thereby constituted one " alternate magnetic field component ", the permanent magnetism physical efficiency fixedly rotatablely moves in the soft magnetic bodies at have small air gap very with it two, permanent magnet cyclic magnetization soft magnetic bodies, can two fixedly the load magnetic field exit place of soft magnetic bodies obtain alternate magnetic field.As shown in Figure 1, directly over the N of permanent magnet 14 utmost point points to, permanent magnet 14 is by both sides soft magnetic bodies 11,13 form magnetic loop, the soft magnetic bodies of permanent magnet and its both sides is in " magnetic stable state ", this moment is if want rotating permanent magnet, " reluctance force " that needs external force to overcome to form between permanent magnet and the soft magnetic bodies, under " magnetic stable state ", the magnetic field intensity at exit 15 places, soft magnetic bodies magnetic field, left side and exit 16 places, soft magnetic bodies magnetic field, right side approaches zero, as shown in Figure 2, when the N of permanent magnet 14 utmost point points to left, permanent magnet is to its both sides soft magnetic bodies 11,13 magnetization is the strongest, because two soft magnetic bodies are isolated every magnet 12, the magnetic circuit of permanent magnet 14 is in open-circuit condition, and the soft magnetic bodies of permanent magnet and its both sides is in " magnetic labile state ", and exit 15 places, soft magnetic bodies magnetic field, left side present the N utmost point, exit 16 places, soft magnetic bodies magnetic field, right side present the S utmost point, and the magnetic field intensity of soft magnetic bodies is the strongest.There is the trend that changes to next " magnetic stable state " in " magnetic labile state ", from magnetic line of force angle, under " magnetic labile state ", the magnetic line of force that the permanent magnet N utmost point sets out is isolated by magnetic owing to two soft magnetic bodies and can't be constituted magnetic loop, the permanent magnet that can move will certainly be towards shortening, stretching the magnetic line of force changes with the situation that forms flux loop, be that permanent magnet exists the trend that returns to " magnetic stable state ", because there is intrinsic magnetic energy in permanent magnet, so this device from " magnetic labile state " to the process that " magnetic stable state " changes, can form " magnetic restoring force ", should " magnetic restoring force " can impel the permanent magnet rotation.

Based on above-mentioned " alternate magnetic field component ", the present invention has provided " adjustable alternate magnetic field component ", should " adjustable alternate magnetic field component " be fixedly to be relatively set with salient pole in the middle part of the soft magnetic bodies at two, two salient poles have constituted the fixedly controlling magnetic field exit of soft magnetic bodies, band arc rectangular cylinder rotation soft magnetic bodies is between these two arc salient poles, and leave minimum rotation air gap, when rotation soft magnetic bodies band arc rectangle major axis is the level of state, as shown in Figure 3, there is very little air gap between rotation soft magnetic bodies and two salient poles, when rotating soft magnetic bodies band arc rectangle major axis in vertical state, as shown in Figure 4, the rotation soft magnetic bodies is a maximum with air gap between two salient poles, has so constituted a kind of " scalable alternate magnetic field component ".

Based on above-mentioned " alternate magnetic field component ", the present invention gives another kind " adjustable alternate magnetic field component ", should " adjustable alternate magnetic field component " be fixedly to connect with a soft magnetic bodies that plays the short circuit effect in the middle part of the soft magnetic bodies at two, and add magnet exciting coil in this soft magnetic bodies periphery of playing the short circuit effect, when magnet exciting coil does not feed exciting current, play of the magnetic line of force whole short circuits of the soft magnetic bodies of short circuit effect with the permanent magnet generation, feed the electric current of certain orientation when magnet exciting coil, the soft magnetic bodies that plays the short circuit effect is magnetized, form magnetic polarity, the soft magnetic bodies that plays the short circuit effect so just can stop permanent magnet magnetic line of force process self and short circuit, like this, permanent magnet magnetic energy just can arrive fixedly soft magnetic bodies magnetic field exit, so constitutes another kind of " scalable alternate magnetic field component ".As shown in Figure 5, when exciting current is zero, all get back to the permanent magnet S utmost point from the magnetic line of force of the permanent magnet N utmost point through the soft magnetic bodies of short circuit effect, at this moment, soft magnetic bodies magnetic field exit magnetic field intensity is zero, when the exciting current direction is determined and is reached rated value, play short circuit effect soft magnetic bodies and formed the magnetic pole N ' utmost point and the S ' utmost point by excitation, make from the magnetic line of force of the permanent magnet N utmost point and can not get back to the permanent magnet S utmost point through short circuit effect soft magnetic bodies again, as shown in Figure 6, at this moment, exit magnetic field intensity in soft magnetic bodies magnetic field is maximum.Control exciting current size is a scalable soft magnetic bodies magnetic field exit magnitude of field intensity.

Based on above-mentioned " alternate magnetic field component " and " scalable alternate magnetic field component ", the present invention has provided the technical scheme of lower resistance alternate magnetic field units, this technical scheme is, choose two magnetic properties identical " alternate magnetic field component " or " scalable alternate magnetic field component ", connect rotatable permanent magnet or rotatable soft magnetic bodies in two " assemblies " with same every the magnetic connecting axle, make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", " assembly " acts on and is tending towards minimum same making a concerted effort on the magnetic connecting axle to make these two, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so constitute one " lower resistance alternate magnetic field units " or " scalable lower resistance alternate magnetic field units ".Accompanying drawing 11, accompanying drawing 12, accompanying drawing 13 provide is a kind of example of " the lower resistance alternate magnetic field units " that is made of " alternate magnetic field component ", and what accompanying drawing 14, accompanying drawing 15 and accompanying drawing 16 provided is another kind of example by " alternate magnetic field component " formation " lower resistance alternate magnetic field units ".

Based on above-mentioned " lower resistance alternate magnetic field units " or " scalable lower resistance alternate magnetic field units ", the present invention gives the technical scheme of lower resistance alternate field system, this technical scheme is, " lower resistance alternate magnetic field units " that several are above-mentioned or the rotatable permanent magnet in " scalable lower resistance alternate magnetic field units " are connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance alternate magnetic field units " or " scalable lower resistance alternate magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into " lower resistance alternate field system " or " scalable lower resistance alternate field system " for minimum.

Based on above-mentioned " lower resistance alternate field system " or " scalable lower resistance alternate field system ", the present invention has provided practical alternate magnetic field application system, the technical scheme of this application system is, " the lower resistance alternate magnetic field units " that several are above-mentioned or " scalable lower resistance alternate magnetic field units " or " lower resistance alternate field system " or " scalable lower resistance alternate field system " are evenly arranged by circle-shaped or wire, permanent magnet in each " unit " or " system " is connected in same interlinked mechanism, all rotatable permanent magnets rotate with unequal angular velocity, and all rotatable soft magnetic bodies are also rotated with unequal angular velocity.

The formation of " pulsatile change magnetic field component " that the present invention provides includes permanent magnet, fixing soft magnetic bodies, every magnet and rotation soft magnetic bodies, permanent magnet is the rectangle or the shape of a hoof, permanent magnet N extremely is close to a fixedly soft magnetic bodies, permanent magnet S extremely also is close to another fixedly soft magnetic bodies, fixedly an end of soft magnetic bodies is close to permanent magnet pole, the other end is the fixing load magnetic field exit of soft magnetic bodies, fixedly be relatively set with salient pole in the middle part of the soft magnetic bodies at two, two salient poles have constituted the fixedly controlling magnetic field exit of soft magnetic bodies, band arc rectangular cylinder rotation soft magnetic bodies is at these two fixedly between the soft magnetic bodies band arc salient pole, and leave minimum rotation air gap, when band arc rectangle rotation soft magnetic bodies major axis is the level of state, as shown in Figure 7, there is very little air gap between rotation soft magnetic bodies and two salient poles, when being with arc rectangle rotation soft magnetic bodies major axis in vertical state, as shown in Figure 8, the rotation soft magnetic bodies is a maximum with air gap between two salient poles, has so constituted one " pulsatile change magnetic field component ".

Based on above-mentioned " pulsatile change magnetic field component ", the present invention has provided " lower resistance pulsatile change magnetic field units ", two magnetic properties of this unit selection identical " pulsatile change magnetic field component ", connect rotation soft magnetic bodies in two " pulsatile change magnetic field component " with same every the magnetic connecting axle, and make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", this two " assembly " acted on be tending towards minimum same making a concerted effort on the magnetic connecting axle, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so constitute one " lower resistance pulsatile change magnetic field units ".Accompanying drawing 17, accompanying drawing 18 and accompanying drawing 19 provide is example by two horseshoe permanent magnets " pulsatile change magnetic field component " formation " lower resistance pulsatile change magnetic field units ", and accompanying drawing 20, accompanying drawing 21 and accompanying drawing 22 provide is example by two rectangle permanent magnets " pulsatile change magnetic field component " formation " lower resistance pulsatile change magnetic field units ".

Based on above-mentioned " lower resistance pulsatile change magnetic field units ", the present invention has provided " lower resistance pulsatile change field system " this system the rotation soft magnetic bodies in several above-mentioned " lower resistance pulsatile change magnetic field units " has been connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance pulsatile change magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into one " lower resistance pulsatile change field system " for minimum.

Based on above-mentioned " lower resistance pulsatile change magnetic field units " and " lower resistance pulsatile change field system ", the present invention has provided application system, this application system is evenly arranged several above-mentioned " lower resistance pulsatile change magnetic field units " or " lower resistance pulsatile change field system " by circle-shaped or wire, rotation soft magnetic bodies in each " lower resistance pulsatile change magnetic field units " or " the lower resistance pulsatile change field system " is connected in same interlinked mechanism, and all rotation soft magnetic bodies are rotated with unequal angular velocity.

The present invention gives another kind of scalable pulsatile change magnetic field component, this assembly formation includes permanent magnet, " H " shape soft magnetic bodies and every magnet, permanent magnet is the rectangle or the shape of a hoof, permanent magnet N extremely is close to " H " shape soft magnetic bodies one side upper end, permanent magnet S extremely also is close to " H " shape soft magnetic bodies opposite side upper end, two lower ends of " H " shape soft magnetic bodies are soft magnetic bodies magnetic field exit, lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies outer race is equipped with magnet exciting coil, when magnet exciting coil does not feed exciting current, " H " shape soft magnetic bodies middle part transverse part branch is with the whole short circuits of the magnetic line of force of permanent magnet, as shown in Figure 9, feed the electric current of determining direction and work as magnet exciting coil, lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies is encouraged by exciting current and magnetizes, the one end presents the S utmost point, the other end presents the N utmost point, when magnet exciting coil feeds rated current, the magnetic field intensity of lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies left end S utmost point equals permanent magnet S pole field intensity, the magnetic line of force in permanent magnet magnetic loop just again can be through the middle part lateral part short circuit of " H " shape soft magnetic bodies, as shown in Figure 10, magnetic field of permanent magnet is directed into the magnetic field exit of soft magnetic bodies lower end, regulate the size of magnet exciting coil electric current, just can regulate, so constitute another kind of " scalable pulsatile change magnetic field component " the pulsatile change magnetic field intensity of soft magnetic bodies magnetic field exit.This assembly can directly constitute application system, " scalable pulsatile change magnetic field component " that several are above-mentioned evenly arranges by circle-shaped or wire, changes, regulates the exciting current that is input in each " scalable pulsatile change magnetic field component " magnet exciting coil and just can obtain pulsatile change magnetic field.

Advantage of the present invention is,

1, the present invention has found a kind of permanent magnet and soft magnetic bodies of making full use of to interact and obtain the method for variation magnetic field, finished an exquisite design of reluctance force when reducing permanent magnet and soft magnetic bodies relative motion simultaneously, solved and how to have utilized permanent magnetic material inner magnet energy to carry out the new method of restriction of self-acting power and balance, make the less energy of input just can utilize the intrinsic hiding magnetic energy of permanent magnet, thereby the energy that replaces and save part to import is raised the efficiency greatly, reduces cost.

2, use the low reluctance force mechanical structure that the present invention set up, be easy to amplify the production method of multi-form alternating magnetic field and pulsating field, the method in these magnetic fields that change has application approach quite widely, can be in conjunction with different magnetic force application scenarios, design different magnetic force enlargers or magnetic power-assisted machine, thereby save energy input, improved the Energy Efficiency Ratio of electronic product effectively magnetic force enlarger or magnetic power-assisted machine.

3, the methods of magnetic field that changes that the present invention provides is simple, practical, can easily design simple and practical device, and also convenient, flexible with this apparatus structure application system, can carry out multiple assembled arrangement, power, phase place, rotating speed, drive manner and all can adjust.

4, the alternating magnetic field device and the pulsating field device that provide of the present invention, compact conformation, practicality, manufacture difficulty is lower, and applied in any combination is in the various occasions that need the variation magnetic field easily and flexibly.As, with the rounded distribution of changes of magnetic field device, just can produce the needed rotating magnetic field of permanent magnet motor; And for example, the changes of magnetic field device is linearly distributed, just can make permanent magnet produce relative displacement, promptly form the linear permanent-magnet motor along rectilinear direction near this device; For another example, permanent magnet is pasted the termination of a member, and this member permanent magnet partly placed between two magnetic poles of alternating magnetic field device, this member permanent magnet can come and go adhesive with the variation of alternating magnetic field in the device soft magnetic bodies, thereby can make this member do reciprocally swinging or rectilinear motion around a fulcrum, or the like, too numerous to enumerate.

5, the present invention has changed permanent magnetic material and only has been the tradition of the stationary magnetic field of a pair of magnetic pole.Convert waveform and forms such as sine, alternation pulsation, frequency conversion and gap output cleverly to, for the various users of making more demand provide extremely flexibly conceptual design to select, expanded the application of permanent magnet greatly.

Description of drawings

Fig. 1 is the structural representation of alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity minimum state.

Fig. 2 is the structural representation of alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity maximum rating.

Fig. 3 is the structural representation of the scalable alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity minimum state of band rotation soft magnetic bodies.

Fig. 4 is the structural representation of the scalable alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity maximum rating of band rotation soft magnetic bodies.

Fig. 5 is the structural representation of the scalable alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity minimum state of band magnet exciting coil.

Fig. 6 is the structural representation of the scalable alternate magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity maximum rating of band magnet exciting coil.

Fig. 7 is the structural representation of the pulsatile change magnetic field component soft magnetic bodies magnetic field intensity minimum state of band rotation soft magnetic bodies.

Fig. 8 is the structural representation of the pulsatile change magnetic field component soft magnetic bodies magnetic field intensity maximum rating of band rotation soft magnetic bodies.

Fig. 9 is the structural representation of the pulsatile change magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity minimum state of band magnet exciting coil.

The structural representation of the pulsatile change magnetic field component soft magnetic bodies magnetic field exit magnetic field intensity maximum rating of Figure 10 band magnet exciting coil.

Figure 11 is the structural representation of one of lower resistance alternate magnetic field units.

Figure 12 is a rotating permanent magnet and structural representation every the magnetic connecting axle in one of lower resistance alternate magnetic field units.

Figure 13 is the structural representation of middle anterior layer of one of lower resistance alternate magnetic field units and back layer soft magnetic bodies.

Figure 14 is two a structural representation of lower resistance alternate magnetic field units.

Figure 15 be lower resistance alternate magnetic field units two in anterior layer, back layer rotating permanent magnet and every the structural representation of magnet.

Figure 16 be lower resistance alternate magnetic field units two in the structural representation of the left and right soft magnetic bodies of anterior layer and the upper and lower soft magnetic bodies of back layer.

Figure 17 is the structural representation of horseshoe permanent magnet lower resistance pulsatile change magnetic field units.

Figure 18 is permanent magnet in the horseshoe permanent magnet lower resistance pulsatile change magnetic field units, every the structural representation of magnet, soft magnetic bodies.

The structural representation that anterior layer rotation soft magnetic bodies is connected with back layer rotation soft magnetic bodies by non-magnetic conduction connecting axle in Figure 19 horseshoe permanent magnet lower resistance pulsatile change magnetic field units.

Figure 20 is the structural representation of rectangle permanent magnet lower resistance pulsatile change magnetic field units.

Figure 21 is the structural representation that anterior layer rotation soft magnetic bodies is connected with back layer rotation soft magnetic bodies by non-magnetic conduction connecting axle in the rectangle permanent magnet lower resistance pulsatile change magnetic field units.

Figure 22 is permanent magnet in the square horseshoe permanent magnet lower resistance pulsatile change magnetic field units, every the structural representation of magnet, soft magnetic bodies.

In the above accompanying drawing, the 11st, the right side soft magnetic bodies, the 12nd, every magnet, the 13rd, the left side soft magnetic bodies, the 14th, rotating permanent magnet, the 15th, soft magnetic bodies magnetic field, left side exit, the 16th, soft magnetic bodies magnetic field, right side exit, the 21st, the right side soft magnetic bodies, the 22nd, every magnet, the 23rd, the left side soft magnetic bodies, the 24th, rotating permanent magnet, the 25th, the rotation soft magnetic bodies, the 26th, soft magnetic bodies controlling magnetic field exit, the 27th, left side soft magnetic bodies load magnetic field exit, the 28th, right side soft magnetic bodies load magnetic field exit, the 31st, soft magnetic bodies, the 32nd, every magnet, the 33rd, soft magnetic bodies, the 34th, rotating permanent magnet, the 35th, coil rack, the 36th, magnet exciting coil, the 37th, soft magnetic bodies magnetic field exit, the 38th, the magnet exciting coil input lead, the 39th, soft magnetic bodies magnetic field exit, 41 horseshoe permanent magnets, the 42nd, every magnet, the 43rd, the left side soft magnetic bodies, the 44th, the rotation soft magnetic bodies, the 45th, soft magnetic bodies magnetic field, left side exit, the 46th, soft magnetic bodies magnetic field, right side exit, the 47th, the right side soft magnetic bodies, the 51st, permanent magnet, the 52nd, magnet exciting coil, the 53rd, " H " shape soft magnetic bodies, the 54th, soft magnetic bodies magnetic field, left side exit, the 55th, the magnet exciting coil input lead, the 56th, soft magnetic bodies magnetic field, right side exit, the 101st, layer left side, back soft magnetic bodies, the 102nd, every magnet, the 103rd, anterior layer left side soft magnetic bodies, the 104th, the anterior layer rotating permanent magnet, the 105th, soft magnetic bodies magnetic field, anterior layer left side exit, the 106th, soft magnetic bodies magnetic field, anterior layer right side exit, the 107th, anterior layer right side soft magnetic bodies, the 108th, layer right side, back soft magnetic bodies, the 109th, back layer rotating permanent magnet, the 110th, every the magnetic connecting axle, the 201st, layer top, back soft magnetic bodies, the 202nd, every magnet, the 203rd, anterior layer left side soft magnetic bodies, the 204th, anterior layer rotating permanent magnet, the 205th, non-magnetic conduction connecting axle, the 206th, soft magnetic bodies magnetic field, anterior layer left side exit, the 207th, soft magnetic bodies magnetic field, anterior layer right side exit, the 208th, anterior layer right side soft magnetic bodies, the 209th, layer below, back soft magnetic bodies, the 210th, back layer rotating permanent magnet, the 301st, back layer horseshoe permanent magnet, the 302nd, every magnet, the 303rd, anterior layer horseshoe permanent magnet, the 304th, anterior layer left side soft magnetic bodies, the 305th, anterior layer rotation soft magnetic bodies, the 306th, non-magnetic conduction connecting axle, the 307th, anterior layer right side soft magnetic bodies, the 308th, layer right side, back soft magnetic bodies, the 309th, soft magnetic bodies magnetic field, anterior layer left side exit, the 310th, soft magnetic bodies magnetic field, anterior layer right side exit, the 311st, back layer rotation soft magnetic bodies, the 401st, every magnet, the 402nd, the rectangle permanent magnet, the 403rd, anterior layer left side soft magnetic bodies, the 404th, non-magnetic conduction connecting axle, the 405th, soft magnetic bodies magnetic field, anterior layer left side exit, the 406th, anterior layer rotation soft magnetic bodies, soft magnetic bodies magnetic field, 407 anterior layer right side exit, the 408th, anterior layer right side soft magnetic bodies, the 409th, every magnet, the 410th, layer right side, back soft magnetic bodies, the 411st, back layer rotation soft magnetic bodies.

Embodiment

Embodiment one:

Present embodiment is for producing the example of alternate magnetic field component, and present embodiment formation and structure are as shown in Figures 1 and 2.Two fixedly soft magnetic bodies 11,13 cut off magnetic circuits every magnet 12 each other, two are fixedly left very small air gap between soft magnetic bodies 11,13 and the permanent magnet 14, permanent magnet 14 rotations can produce alternate magnetic field at the exit place, magnetic field 15 of exit place 16, the magnetic field of soft magnetic bodies 11 and soft magnetic bodies 13.

Embodiment two:

Present embodiment is the example of scalable alternate magnetic field component, and present embodiment formation and structure are shown in accompanying drawing 3 and accompanying drawing 4.Right side soft magnetic bodies 21 and left side soft magnetic bodies 23 are cut off magnetic circuit every magnet 22, between rotating permanent magnet 24 and left side soft magnetic bodies 23 and the right side soft magnetic bodies 21 minimum air gap is arranged, between rotation soft magnetic bodies 25 and left side soft magnetic bodies 23 and the right side soft magnetic bodies 21 controlling magnetic field exits 26 minimum air gap is arranged, when rotating permanent magnet 24 and rotation soft magnetic bodies 25 are in location status shown in the accompanying drawing 3, the magnetic field intensity minimum of left side soft magnetic bodies load magnetic field exit 27 and right side soft magnetic bodies load magnetic field exit 28, when the rotation soft magnetic bodies is in location status shown in the accompanying drawing 4, can't get back to the S utmost point through rotation soft magnetic bodies 25 again from the magnetic line of force of the N utmost point of permanent magnet 24, promptly at soft magnetic bodies load magnetic field exit 27,28 places produce alternate magnetic field.Be provided with and regulate rotating permanent magnet 24 and the rotating speed and the phase difference that rotate soft magnetic bodies 25, the alternate magnetic field that just can obtain different Changing Patterns.

Embodiment three:

Present embodiment is another kind of scalable alternate magnetic field component example, and present embodiment formation and structure are shown in accompanying drawing 5 and accompanying drawing 6.The top of right side soft magnetic bodies 31 and left side soft magnetic bodies 33 is cut off magnetic circuit every magnet 32, between rotating permanent magnet 34 and the left and right sides soft magnetic bodies minimum air gap is arranged, there is the short circuit soft magnetic bodies at the middle part " bridging " of left side soft magnetic bodies 33 and right side soft magnetic bodies, this short circuit soft magnetic bodies overcoat has coil rack 35 and magnet exciting coil 36, when the electric current of importing magnet exciting coil is zero, all get back to the permanent magnet S utmost point from the N utmost point magnetic line of force of permanent magnet 34 through the short circuit soft magnetic bodies, the magnetic field intensity at soft magnetic bodies magnetic field exit 37 and 39 places is zero, this state as shown in Figure 5, the direction exciting current is determined in input in magnet exciting coil, the short circuit soft magnetic bodies is by excitation, can form magnetic pole N ' at short circuit soft magnetic bodies left end, form magnetic pole S ' at right-hand member, this excitation magnetic potential can stop the magnetic line of force of permanent magnet through short circuit soft magnetic bodies path, and when the exciting current of input reached rated value, excitation magnetic potential stoped the magnetic line of force by the short circuit soft magnetic bodies fully, magnetic field intensity at exit place, left and right sides soft magnetic bodies magnetic field is maximum, as shown in Figure 6.If the big or small direction of exciting current in the rotating speed of rotating permanent magnet 34 and the magnet exciting coil is equipped with, just can obtains the alternate magnetic field of different Changing Patterns.

Embodiment four:

Present embodiment is for producing the example of pulsatile change magnetic field component, and present embodiment formation and structure are shown in accompanying drawing 7 and accompanying drawing 8.The N utmost point of horseshoe permanent magnet 41 is close to soft magnetic bodies 43 upper ends, left side, the S utmost point of horseshoe permanent magnet 41 is close to right side soft magnetic bodies 47 upper ends, every magnet 42 the left and right sides soft magnetic bodies is separated, rotation soft magnetic bodies 44 is in a left side, soft magnetic bodies middle part, right side, a rotation soft magnetic bodies and a left side, between the right soft magnetic bodies minimum air gap is arranged, when the rotation soft magnetic bodies is in as shown in Figure 7 location status, all get back to the S utmost point of permanent magnet 41 through rotation soft magnetic bodies 44 from the magnetic line of force of the N utmost point of permanent magnet 41, magnetic field intensity at soft magnetic bodies magnetic field, left side exit 45 and exit 46 places, soft magnetic bodies magnetic field, right side is zero, when rotating permanent magnet 44 is in position as shown in Figure 8, can't be from the magnetic line of force of permanent magnet 41s again through 44 short circuits of rotation soft magnetic bodies, on a left side, the magnetic field intensity at soft magnetic bodies magnetic field, right side exit 45 and 46 places is maximum.

Embodiment five:

Present embodiment is the another kind of example that can produce the pulsatile change magnetic field component, and present embodiment formation and structure are shown in accompanying drawing 9 and accompanying drawing 10.The S utmost point of horseshoe permanent magnet 51 is close to the upper left end of " H " shape soft magnetic bodies 53, the N utmost point of horseshoe permanent magnet 51 is close to the upper right end of " H " shape soft magnetic bodies 53, magnet exciting coil 52 is sleeved on " H " shape soft magnetic bodies lateral part, when magnet exciting coil input stimulus electric current is zero, all get back to the S utmost point of permanent magnet through the lateral part of " H " shape soft magnetic bodies from the magnetic line of force of the N utmost point of permanent magnet 51, magnetic field, " H " shape soft magnetic bodies lower end exit 54 and 56 magnetic field intensity are zero, when determining the direction exciting current through 55 inputs of magnet exciting coil input lead, " H " shape soft magnetic bodies lateral part is by excitation, form the S ' utmost point at its left end, form the N ' utmost point at its right-hand member, this excitation magnetic potential stops the lateral part path of permanent magnet 51 magnetic lines of force through " H " shape soft magnetic bodies, when exciting current reaches rated value, excitation magnetic potential stops whole permanent magnet magnetic line of forces to be passed through, and it is maximum that the magnetic field intensity at magnetic field, " H " shape soft magnetic bodies bottom exit 54 and 56 places reaches.

Embodiment six:

Present embodiment is for producing the example of alternate magnetic field units, present embodiment constitutes and structure such as accompanying drawing 11,12, shown in 13, present embodiment alternate magnetic field units is by permanent magnet 104, soft magnetic bodies 103,107,101,108, every magnet 102, constitute every magnetic connecting axle 110, this device permanent magnet is that both sides are the approximate rectangular body of camber, permanent magnet is divided into anterior layer 104 and back layer 109, soft magnetic bodies also is divided into anterior layer left side soft magnetic bodies 103, anterior layer right side soft magnetic bodies 107 and layer left side, back soft magnetic bodies 101, layer right side, back soft magnetic bodies 108, before, a back layer soft magnetic bodies all be from horizontal direction near and surround before, back layer permanent magnet, anterior layer permanent magnet 104 is positioned at anterior layer soft magnetic bodies 103,107 central authorities, and leave minimum air gap, back layer permanent magnet 109 is positioned at back layer soft magnetic bodies 101,108 central authorities, and leave minimum air gap, anterior layer permanent magnet 104 is connected every magnetic connecting axle 110 by same with back layer permanent magnet 109, and the N utmost point of anterior layer permanent magnet points to and back layer permanent magnet N utmost point sensing differs 90 degree, the N utmost point that is the anterior layer permanent magnet points to ten two directions, then the N utmost point of layer permanent magnet then points to or 9 directions at 3, cut off magnetic circuit every magnet 102 between two soft magnetic bodies of anterior layer and two soft magnetic bodies of back layer, also cut off magnetic circuit between anterior layer permanent magnet and soft magnetic bodies and back layer permanent magnet and the soft magnetic bodies every magnet 102.When the N of anterior layer permanent magnet 104 utmost point pointed to for nine o'clock during direction, air gap minimum between permanent magnet two magnetic poles and the soft magnetic bodies, the permanent magnet magnetization soft magnetic bodies, make exit 105 places, magnetic field, soft magnetic bodies bottom, anterior layer left side present the N utmost point, exit 106 places, magnetic field, soft magnetic bodies bottom, anterior layer right side present the S utmost point, and present maximum magnetic field intensity, magnetic field is in the magnetic line of force and is elongated between this position anterior layer permanent magnet 104 and the soft magnetic bodies, " the magnetic labile state " of twisted state, and just at the moment, the N utmost point of back layer permanent magnet 109 then points to the twelve-hour direction, promptly point to the soft magnetic bodies joint every magnet, the N of layer permanent magnet 109 behind this position, the S utmost point by both sides each self-forming of soft magnetic bodies " the magnetic stable state " of magnet short-cut path state, the magnetic field intensity that present at back layer exit place, soft magnetic bodies magnetic field this moment is for minimum.

If the permanent magnet in the present embodiment unit is rotated with external force, just can obtain alternate magnetic field at the magnetic field exit of anterior layer soft magnetic bodies and back layer soft magnetic bodies, the alternate magnetic signature curve shape that produces on the characteristic curve in the alternate magnetic field that produces on the anterior layer soft magnetic bodies and the back layer soft magnetic bodies is in full accord, just has the phase differences of 90 degree.

Embodiment seven:

Present embodiment is for producing another example of alternate magnetic field units, present embodiment constitutes and structure such as accompanying drawing 14,15, shown in 16, in the present embodiment, this unit formation includes permanent magnet 204,210, soft magnetic bodies 203,208,209,201, every magnet 202 with every magnetic connecting axle 205, this unit permanent magnet is approximate rectangular, permanent magnet is divided into anterior layer 204 and back layer 210, it is two-layer before and after soft magnetic bodies is divided into, the anterior layer soft magnetic bodies is divided into anterior layer left side soft magnetic bodies 203 and anterior layer right side soft magnetic bodies 208, separated every magnet between the anterior layer soft magnetic bodies, the anterior layer soft magnetic bodies be from horizontal direction near and surround the anterior layer permanent magnet, between two soft magnetic bodies of anterior layer breach be positioned at permanent magnet on, the below, back layer soft magnetic bodies is divided into layer top, back soft magnetic bodies 201 and layer below, back soft magnetic bodies 209, a back layer soft magnetic bodies be from vertical direction near and surround back layer permanent magnet, separated every magnet between the layer soft magnetic bodies of back, breach is positioned at the left side and the right side of back layer permanent magnet between two soft magnetic bodies of back layer, anterior layer permanent magnet 204 is positioned at anterior layer soft magnetic bodies 203,208 central authorities, back layer permanent magnet 210 is positioned at back layer soft magnetic bodies 201,209 central authorities, before, back layer permanent magnet connected every magnetic connecting axle 205 by same, the N utmost point of anterior layer permanent magnet points to and points to consistent with the back layer permanent magnet N utmost point, there is not differential seat angle, cut off magnetic circuit, anterior layer permanent magnet every magnet 202 between two soft magnetic bodies of anterior layer and two soft magnetic bodies of back layer, anterior layer soft magnetic bodies and back layer permanent magnet, also cut off magnetic circuit between the layer soft magnetic bodies of back every magnet 202 and 205.When external force drives the lasting rotation of permanent magnet, will produce alternate magnetic field on exit 206,207 places, magnetic field, anterior layer left and right soft magnetic bodies bottom and the upper and lower soft magnetic bodies of layer magnetic field, the back exit, the equal generating period of magnetic polarity and magnetic field intensity is variation alternately.The alternate magnetic signature curve shape that produces on the characteristic curve in the alternate magnetic field that produces on the anterior layer soft magnetic bodies and the back layer soft magnetic bodies is in full accord, just has the phase differences of 90 degree.

Embodiment eight:

Present embodiment is a base unit with " lower resistance alternate magnetic field units " among embodiment six or the embodiment seven, and the rotating permanent magnet in " lower resistance alternate magnetic field units " that several are such is connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance alternate magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into one " lower resistance alternate field system " for minimum." the lower resistance alternate field system " that make up according to this form can have more alternate field pole exit, can produce more magnetic force to external world, thereby have bigger Energy Efficiency Ratio.

Embodiment nine:

Present embodiment is also arranged along a curve or straight line with " lower resistance alternate magnetic field units " among embodiment six or embodiment seven or the embodiment eight or " lower resistance alternate field system ", the moving component of input power is connected in same interlinked mechanism in these " lower resistance alternate magnetic field units " or " the lower resistance alternate field system ", the magnetic force that is produced in each " lower resistance alternate magnetic field units " or " lower resistance alternate field system " can promote permanent magnet or the salient pole soft magnetic bodies is done the wire motion, if permanent magnet or salient pole soft magnetic bodies are fitted in the desire surface of moving object, the magnetic force of each " lower resistance alternate magnetic field units " or " lower resistance alternate field system " can promote to desire moving object and do the wire motion.If permanent magnet or salient pole soft magnetic bodies be that wire is arranged and fixing, then can go up the thrust that obtains relative motion in " lower resistance alternate magnetic field units " or " lower resistance alternate field system ".

Embodiment ten:

Present embodiment is also based on " lower resistance alternate magnetic field units " among embodiment six or embodiment seven or the embodiment eight or " lower resistance alternate field system ", and " lower resistance alternate magnetic field units " such more than two or " lower resistance alternate field system " evenly arranged around same rotating cylindrical body, the revolving cylindrical body external surface is pasted with permanent magnet or salient pole soft magnetic bodies according to certain rules, the place is pasted with permanent magnet or salient pole soft magnetic bodies with all alternate magnetic field units soft magnetic bodies opposite positions, and the position of rotating cylindrical permanent magnet that external surface is pasted or salient pole soft magnetic bodies is corresponding with the position of soft magnetic bodies magnetic pole exit in all " lower resistance alternate magnetic field units " or " lower resistance alternate field system ".When all " lower resistance alternate magnetic field units " or " lower resistance alternate field system " successively or the rule of magnitude of field intensity when producing the rotating magnetic field of alternate chronologically, the N utmost point and the S utmost point produce repulsive force and attraction to permanent magnet on the passive rotating cylindrical external surface or salient pole soft magnetic bodies respectively on the soft magnetic bodies of all " lower resistance alternate magnetic field units " or " lower resistance alternate field system ", and these active forces make that all rotating cylindrical body rotates facing one direction.

Tradition rotor of permanent magnet motor or stator must have one to be to produce rotating magnetic field by the electromagnetic excitation mode among both, and rotating magnetic field and the intrinsic magnetic field interaction of permanent magnet that electromagnetic excitation produces just can make permanent magnet motor rotate work done.The coil stimulating electric current produces in the rotating magnetic field process, except the excitation power of setting up magnetic field consumption has electrical loss with the exterior loop copper material, is also had the magnetic substance loss by the permeability magnetic material of electromagnetization.These factors have all hindered the further raising of traditional permanent-magnet electric engine efficiency.The generation alternate magnetic field application system that adopts present embodiment to provide can make up magnetic force enlarger or magnetic power-assisted machine, come the magnetic field energy of alternative electric energy excitation generation with the intrinsic magnetic energy of permanent magnet, only need small rotation moment, rotate the moving component in the alternate field system synchronously, just can excite cleverly or by the magnetic energy of permanent magnetic material internal storage, and work done to external world, make rotary body that bigger turning moment output be arranged.And after getting involved the magnetic field by-pass cock, unit or system with by kinetoplast on during the action of a magnetic field, transmission efficiency can obtain more highland lifting.

Embodiment 11:

Present embodiment is for producing the example of pulsatile change magnetic field units, present embodiment formation and structure are shown in accompanying drawing 17,18,19, in the present embodiment, this unit formation includes horseshoe permanent magnet 301,303, fixedly soft magnetic bodies 304,307,308, every magnet 302, every magnetic connecting axle 306 and rotation soft magnetic bodies 305.Double-layer structure before and after the present embodiment unit is divided into, the front and back double-layer structure is finished identical, and the two-layer magnetic characteristic in front and back is also identical, and the two-layer quilt in front and back cuts off magnetic circuit every magnet.The N utmost point of anterior layer horseshoe permanent magnet 303 is close in the upper end of anterior layer left side soft magnetic bodies 304, the S utmost point of anterior layer horseshoe permanent magnet 303 is close in the upper end of anterior layer right side soft magnetic bodies 307, soft magnetic bodies lower end, anterior layer left side is a magnetic field exit 309, soft magnetic bodies lower end, anterior layer right side is a magnetic field exit 310, middle part in two soft magnetic bodies of anterior layer, the salient pole that two terminal band arcs are arranged relatively, the longitudinal end of approximate rectangular cylinder rotation soft magnetic bodies also has arc, the arc of rotation soft magnetic bodies and fixedly soft magnetic bodies salient pole arc match, and leave minimum air gap.Anterior layer rotation soft magnetic bodies is connected every the magnetic connecting axle by same with a back layer rotation soft magnetic bodies, and feasible front and back two-layer in the long axis direction of approximate rectangular rotation soft magnetic bodies vertical mutually.When if the rotation soft magnetic bodies major axis in the preceding layer assembly rotates to horizontal direction, air gap in the middle part of rotation soft magnetic bodies and the fixing soft magnetic bodies between two salient poles is very little, before this moment layer assembly about the magnetic field intensity that presents of two soft magnetic bodies magnetic field exits approach zero, because this position, the rotation soft magnetic bodies has played the magnet short-cut path effect, preceding layer assembly is in " magnetic stable state ", and the rotation soft magnetic bodies major axis in the layer assembly rotates to vertical direction this moment, layer rotation soft magnetic bodies in back is a maximum with the fixing air gap between two salient poles in soft magnetic bodies middle part, this moment back layer assembly is in " magnetic labile state ", and the magnetic field intensity that two soft magnetic bodies magnetic field exits present about the layer of back is for maximum.When continuing to make every the magnetic connecting axle, external force rotates, just can obtain the constant and pulsatile change magnetic field of change of magnetic field strength of magnetic polarity at anterior layer soft magnetic bodies magnetic field exit and a back layer soft magnetic bodies magnetic field exit, and the pulsatile change changes of magnetic field curve that produces of anterior layer magnetic field exit and back layer is just the same, just has the phase differences of 90 degree.

On the exit of the soft magnetic bodies magnetic field of former and later two assemblies, produce magnetic field intensity and change to maximum from zero, change to zero from maximum again, finish the time of a period of change to be associated with the speed of rotation every the magnetic connecting axle.When external force is applied on the magnetic connecting axle, two rotation soft magnetic bodies are rotated synchronously, the process that preceding layer assembly changes to " magnetic labile state " from " magnetic stable state ", the process that also back just layer assembly changes to " magnetic stable state " from " magnetic labile state ", there be " reluctance force " from " magnetic stable state " in assembly to " magnetic labile state " change procedure, and assembly exists " magnetic restoring force " from " magnetic labile state " to " magnetic stable state " change procedure, this " magnetic restoring force " can offset part " reluctance force ", and this just makes that the Energy Efficiency Ratio of this device is higher.

Embodiment 12:

Present embodiment is for producing the another kind of example of pulsatile change magnetic field units, present embodiment constitutes and structure such as accompanying drawing 20,21, shown in 22, present embodiment unit basic structure characteristics are with embodiment 11, different is to have adopted rectangle permanent magnet 402, fixedly soft magnetic bodies 403,408,410, every magnet 401 and rotation soft magnetic bodies 406, before 411 formations, latter two changes of magnetic field assembly, before this unit, latter two changes of magnetic field modular construction and magnetic characteristic are identical, the N utmost point of rectangle permanent magnet is close on soft magnetic bodies 403 tops, anterior layer left side, the S utmost point of rectangle permanent magnet is close on soft magnetic bodies 408 tops, anterior layer right side, soft magnetic bodies 403 bottoms, anterior layer left side are magnetic field exit 405, soft magnetic bodies 408 bottoms, anterior layer right side are magnetic field exit 407, also be oppositely arranged the salient pole of two terminal band arcs at anterior layer soft magnetic bodies middle part, rotation soft magnetic bodies rectangle longitudinal end also has arc, and the arc of salient pole matches in the middle part of the arc of rotation soft magnetic bodies longitudinal end and the fixing soft magnetic bodies.The version of back layer assembly and magnetic characteristic and preceding layer assembly is identical in the present embodiment, rotation soft magnetic bodies 406 in former and later two assemblies is connected every magnetic connecting axle 404 by same with 411, and rotation soft magnetic bodies 406,411 long axis directions are vertical mutually in former and later two assemblies.When if the rotation soft magnetic bodies major axis in the preceding layer assembly rotates to horizontal direction, air gap between rotation soft magnetic bodies and the soft magnetic bodies salient pole is very little, the rotation soft magnetic bodies has played the magnet short-cut path effect, the magnet short-cut path state is preceding layer assembly " a magnetic stable state ", the magnetic field intensity that two soft magnetic bodies magnetic field exits of layer assembly present before this moment is for minimum, and just at the moment, rotation soft magnetic bodies major axis in the back layer assembly rotates to vertical direction, air gap maximum between rotation soft magnetic bodies and the soft magnetic bodies salient pole, the rotation soft magnetic bodies is minimum to back layer assembly magnetic circuit influence, the magnetic field intensity that two soft magnetic bodies magnetic pole exits of back layer assembly present is for maximum, and this moment, the back layer assembly then was in " magnetic labile state ".When continuing to make every the magnetic connecting axle, external force rotates, just can obtain the constant and pulsatile change magnetic field of change of magnetic field strength of magnetic polarity at anterior layer soft magnetic bodies magnetic field exit and a back layer soft magnetic bodies magnetic field exit, and the pulsatile change changes of magnetic field curve that produces of anterior layer magnetic field exit and back layer is just the same, just has the phase differences of 90 degree.

Embodiment 13:

Present embodiment is based on " lower resistance pulsatile change magnetic field units " among embodiment 11 or the embodiment 12, and the rotation soft magnetic bodies in " lower resistance pulsatile change magnetic field units " that several are such is connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance pulsatile change magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into one " lower resistance pulsatile change field system " for minimum." the lower resistance pulsatile change field system " that make up according to this form can have more pulsatile change field pole exit, can produce more magnetic force to external world, thereby have bigger Energy Efficiency Ratio.

Embodiment 14:

Present embodiment is also based on " lower resistance pulsatile change magnetic field units " among embodiment 11 and the embodiment 12, and " lower resistance pulsatile change magnetic field units " such more than two arranged along a curve or straight line, these " lower resistance pulsatile change magnetic field units " be connected in same interlinked mechanism every the magnetic connecting axle, near the permanent magnet that the magnetic force that produces in each " lower resistance pulsatile change magnetic field units " exit place, magnetic field can promote the exit of magnetic field is done the wire motion, if permanent magnet is fitted in the desire surface of moving object, the magnetic force of each lower resistance alternate magnetic field units just can promote to desire moving object and do the wire motion.If permanent magnet is that wire is arranged and fixing, then can go up the propulsive thrust that obtains relative motion in " lower resistance pulsatile change magnetic field units ".

In like manner, also " lower resistance pulsatile change field system " among two above embodiment 13 can be arranged along a curve or straight line, form a changes of magnetic field application system with using value.

Embodiment 15:

Present embodiment is also based on " lower resistance pulsatile change magnetic field units " among embodiment 11 or the embodiment 12, and " lower resistance pulsatile change magnetic field units " such more than two arranged around same rotary body, revolving cylindrical body external surface and all pulsating field device soft magnetic bodies opposite positions place are pasted with permanent magnet or salient pole soft magnetic bodies, when all pulsatile change magnetic field devices produce pulsatile change magnetic field simultaneously, the N utmost point of all soft magnetic bodies magnetic field exit and the S utmost point produce repulsive force and attraction to the permanent magnet on the rotary body outer surface or salient pole soft magnetic bodies respectively on the device, and these repulsive forces and attraction all make rotary body rotate facing one direction.All pulsatile change magnetic field devices of evenly arranging around rotary body of this moment are in orderly acting in conjunction, have formed to be similar to permanent magnet motor and to rotate needed rotating magnetic field.

In like manner, also " lower resistance pulsatile change field system " among two above embodiment 13 evenly can be arranged around same rotary body, form a rotating magnetic field application system with using value.

The generation pulsatile change magnetic field application system that adopts present embodiment to provide also can make up magnetic force enlarger or magnetic power-assisted machine, come the magnetic field energy of alternative electric energy excitation generation with the intrinsic magnetic energy of permanent magnet, only need small rotation moment, moving component in the synchronous rotary pulse variation magnetic field system, just can excite cleverly or by the magnetic energy of permanent magnetic material internal storage, and acting to external world, make rotary body that bigger turning moment output be arranged.Because pole change does not take place the pulsating field device, thereby the magnetic substance loss that is fixedly produced in the soft magnetic bodies in the device is lower.

Claims (17)

1. permanent magnet and soft magnetic bodies interact and obtain the method for variation magnetic field, this method is given full play to permanent magnet and soft magnetic bodies inherent characteristic, make permanent magnet magnetic isolate soft magnetic bodies generation magnetization in small air gap mode very to magnetic each other to the utmost point, the soft magnetic bodies that is magnetized is directed to paired permanent magnet magnetic energy and the magnetic soft magnetic bodies magnetic field exit of isolating each other, if periodic variation permanent magnet and soft magnetic bodies relative position, the alternate magnetic field that just can obtain magnetic polarity and magnetic field intensity periodically-varied at soft magnetic bodies magnetic field exit; Perhaps make permanent magnet two magnetic poles be close to two magnetic isolation soft magnetic bodies each other, permanent magnet can magnetize soft magnetic bodies, the soft magnetic bodies that is magnetized is directed to the soft magnetic bodies magnetic field exit of magnetic isolation each other with permanent magnet magnetic energy, if one " magnetic circuit by-pass cock " is set between two soft magnetic bodies, by periodically " opening " or " closing " be magnetized flux path of soft magnetic bodies, just can obtain that magnetic polarity is constant, the pulsatile change magnetic field of magnetic field intensity periodically-varied at soft magnetic bodies magnetic field exit.

2. permanent magnet according to claim 1 and soft magnetic bodies interact and obtain the method for variation magnetic field, it is characterized in that: with having permanent magnet and two be isolated from each other soft magnetic bodies common structure one " the magnetic field alternate assembly " of a magnetic the utmost point, two soft magnetic bodies that are isolated from each other are symmetricly set on around the permanent magnet in this assembly, has minimum air gap between permanent magnet and two soft magnetic bodies, two soft magnetic bodies of permanent magnet magnetizable, soft magnetic bodies has played the effect of the guiding and the constraint magnetic line of force, make the magnetic field exit of two soft magnetic bodies can present the magnetic characteristic of permanent magnet, if produce relative motion between permanent magnet and the soft magnetic bodies, can change the magnetization effect of permanent magnet to soft magnetic bodies, under no external force effect situation, the magnetic line of force can be in the most straight or short status in the magnetic circuit that permanent magnet and soft magnetic bodies constitute, this moment, this assembly was in " magnetic stable state ", the magnetic field intensity that obtains according to different version at exit place, the magnetic field of two soft magnetic bodies goes to zero or is maximum, when the external force effect, make that relative position changes between permanent magnet and the soft magnetic bodies, permanent magnet also changes the magnetic induction intensity of soft magnetic bodies thereupon, thereby the magnetic field intensity of this assembly soft magnetic bodies magnetic field exit is also changed thereupon, this moment, this assembly was in " magnetic metastable condition ", when external force continuation effect, make between permanent magnet and two soft magnetic bodies closed magnetic line of force be drawn as the longest or torsion resistance when maximum, this assembly then is in " magnetic labile state ", at this moment, the magnetic field intensity that obtains according to different version at exit place, the magnetic field of two soft magnetic bodies is maximum or goes to zero, between " the magnetic stable state " and " magnetic labile state " of this assembly, exist many " magnetic metastable conditions ", these " magnetic metastable conditions " are that the relative position by permanent magnet and soft magnetic bodies is determined, this assembly changes to " magnetic labile state " from " magnetic stable state ", need the external force acting, promptly for external influence power, this assembly exists " reluctance force ", this assembly changes to " magnetic stable state " from " magnetic labile state " does not then need the external force acting, this assembly self possesses " magnetic stable state " trend that returns to, promptly for external influence power, this assembly exists " magnetic restoring force ", if continue, periodically apply external force, make permanent magnet with respect to the relative motion of soft magnetic bodies generating period, make institute's externally applied forces constantly, periodically overcome " reluctance force " of this assembly, permanent magnet will the cyclic magnetization soft magnetic bodies, will produce the alternate magnetic field that magnetic polarity and magnetic field intensity are all done periodically-varied at the magnetic field of two soft magnetic bodies exit.

3. permanent magnet according to claim 2 and soft magnetic bodies interact and obtain the method for variation magnetic field, it is characterized in that: between described " magnetic field alternate assembly " paired soft magnetic bodies, be provided with by " magnetic circuit by-pass cock ", so constitute by a kind of " adjustable magnetic field alternate assembly ", when this " magnetic circuit by-pass cock " when being in complete on-state, quilt " magnet short-cut path " between the paired soft magnetic bodies, all through getting back to the permanent magnet S utmost point by " magnetic circuit by-pass cock " flux path, the magnetic field intensity of this state soft magnetic bodies magnetic field exit is minimum to the magnetic line of force of permanent magnet from the N utmost point; When this " magnetic circuit by-pass cock " when being in buttoned-up status, magnetic circuit between the soft magnetic bodies is by " disconnection " in pairs, the magnetic line of force of the permanent magnet N utmost point can't be got back to the permanent magnet S utmost point through this " magnetic circuit by-pass cock ", and the magnetic field intensity of this state soft magnetic bodies magnetic field exit is maximum; When this " magnetic circuit by-pass cock " is in when not exclusively opening the intermediateness of also not closing, the part magnetic power of the permanent magnet N utmost point is got back to the permanent magnet S utmost point through " magnetic circuit by-pass cock ", the magnetic field intensity of this state soft magnetic bodies magnetic field exit is between maximum and minimum, should " magnetic circuit by-pass cock " there be following two methods to realize, the first, with the soft magnetic bodies cross-over connection that plays the bridging effect between paired soft magnetic bodies, and guarantee that the soft magnetic bodies and the permanent magnet that play the bridging effect make up the minimum reluctance value of the magnetic resistance of flux path much smaller than permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, and magnet exciting coil is set playing bridging effect soft magnetic bodies periphery, rule by changing the exciting current in the input magnet exciting coil and size realize the regulating and controlling to exit variation magnetic field, soft magnetic bodies magnetic field; The another kind of form of " magnetic circuit by-pass cock " is, between the soft magnetic bodies the rotatable soft magnetic bodies of non-circular shape is being set in pairs, when rotatable soft magnetic bodies rotates to different angles, itself and in pairs the size of gaps between the soft magnetic bodies do corresponding change, it produces different influences to magnetic circuit between the paired soft magnetic bodies, because the magnetic resistance of permanent magnet and the flux path that rotatable soft magnetic bodies forms that plays the bridging effect is much smaller than the minimum reluctance value of permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, when rotatable soft magnetic bodies and in pairs the air gap between the soft magnetic bodies for hour, soft magnetic bodies is the magnet short-cut path state in pairs, the magnetic line of force that the permanent magnet N utmost point sets out has been got back to the permanent magnet S utmost point through rotatable soft magnetic bodies, at this moment, the magnetic field intensity at exit place, soft magnetic bodies magnetic field is minimum in pairs, when the air gap between rotatable soft magnetic bodies and the paired soft magnetic bodies is maximum, do not constitute flux path between the soft magnetic bodies in pairs, the magnetic field intensity at exit place, soft magnetic bodies magnetic field is maximum in pairs, size of gaps is between intermediateness between rotatable soft magnetic bodies and paired soft magnetic bodies, then have the part magnetic line of force by rotatable soft magnetic bodies, change the geometry of rotatable soft magnetic bodies, can effectively change the rule that air gap changes between rotatable soft magnetic bodies and the paired soft magnetic bodies, and then can be adjusted to soft magnetic bodies magnetic field exit change of magnetic field strength rule.

4. interact according to claim 2 or 3 described permanent magnets and soft magnetic bodies and obtain the method for variation magnetic field, it is characterized in that: two magnetic properties identical " magnetic field alternate assembly " or " adjustable magnetic field alternate assembly " are carried out the magnetic isolation, and the moving component in this two " assembly " coupled together by same interlinked mechanism, when interlinked mechanism connects moving component, make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", " assembly " acts on and is tending towards minimum making a concerted effort on the same interlinked mechanism to make these two, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so just constituted a kind of being referred to as " lower resistance alternate magnetic field units ", in this unit, moving component in " assembly " constantly, when periodically moving, in an assembly, form the part of " reluctance force " can be by another assembly in " magnetic restoring force " offset, like this, just can produce two groups at four the soft magnetic bodies magnetic field of two couples of this " lower resistance alternate magnetic field units " exit and have dephased variation magnetic field, the moving component of keeping this alternate magnetic field units needed external force needed external force can the motion of single much smaller than keeping " assembly " moving component the time of moving, just can be with less mechanical energy input, to obtain the higher relatively alternate magnetic field of Energy Efficiency Ratio.

5. permanent magnet according to claim 1 and soft magnetic bodies interact and obtain the method for variation magnetic field, it is characterized in that: make up one " magnetic field pulsatile change assembly " jointly with a permanent magnet and two fixedly soft magnetic bodies that are isolated from each other and one " magnetic circuit by-pass cock ", two fixedly soft magnetic bodies that are isolated from each other are close to two magnetic poles of permanent magnet, two fixedly soft magnetic bodies be provided with the magnetic field exit, " magnetic circuit by-pass cock " is arranged at two fixedly between the soft magnetic bodies, should " magnetic circuit by-pass cock " there be following two methods to realize, the first, with a soft magnetic bodies cross-over connection that plays the bridging effect between paired soft magnetic bodies, and guarantee that the soft magnetic bodies and the permanent magnet that play the bridging effect make up the minimum reluctance value of the magnetic resistance of flux path much smaller than permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, and magnet exciting coil is set playing bridging effect soft magnetic bodies periphery, when exciting current is zero, play the bridging effect the soft magnetic bodies short circuit two fixing soft magnetic bodies, the magnetic line of force that the permanent magnet N utmost point sets out has been got back to the permanent magnet S utmost point through the soft magnetic bodies that plays the bridging effect, at this moment, the magnetic field intensity at exit place, two soft magnetic bodies magnetic field is minimum, when the exciting current direction is determined and is reached rated value, the soft magnetic bodies that plays the bridging effect is magnetized by excitation, the soft magnetic bodies that the magnetic line of force that the magnetic field that is produced can stop the permanent magnet N utmost point to set out has passed through the bridging effect, promptly two fixedly do not reconstruct flux path between the soft magnetic bodies, the magnetic field intensity at exit place, two soft magnetic bodies magnetic field is maximum, when exciting current between the zero-sum rated value, play and have the part magnetic line of force in the soft magnetic bodies of bridging effect and pass through, and make two fixedly soft magnetic bodies magnetic field exit magnetic field intensity corresponding decline is arranged, can realize the fixing regulating and controlling of soft magnetic bodies magnetic field exit variation magnetic field by changing exciting current in the input magnet exciting coil; The another kind of form of " magnetic circuit by-pass cock " is, at two a rotatable soft magnetic bodies of non-circular shape is set between the soft magnetic bodies fixedly, when rotatable soft magnetic bodies anglec of rotation difference, itself and two fixedly also corresponding changes of the size of gaps between the soft magnetic bodies, because the magnetic resistance of permanent magnet and the flux path that rotatable soft magnetic bodies forms that plays the bridging effect is much smaller than the minimum reluctance value of permanent magnet and soft magnetic bodies magnetic field exit and the constructed flux path of extraneous load, when rotatable soft magnetic bodies and two fixedly the air gap between the soft magnetic bodies for hour, two fixedly soft magnetic bodies be the magnet short-cut path state, the magnetic line of force that the permanent magnet N utmost point sets out is through fixedly soft magnetic bodies and rotatable soft magnetic bodies have been got back to the permanent magnet S utmost point, at this moment, two fixedly the magnetic field intensity at soft magnetic bodies magnetic field exit place be minimum, this state is this assembly " a magnetic stable state ", as rotatable soft magnetic bodies and two when fixedly the air gap between the soft magnetic bodies is maximum, two fixedly do not constitute flux path between the soft magnetic bodies, two fixedly the magnetic field intensity at soft magnetic bodies magnetic field exit place be maximum, this state is this assembly " a magnetic labile state ", when rotatable soft magnetic bodies and two fixedly between the soft magnetic bodies size of gaps between intermediateness, then have the part magnetic line of force by rotatable soft magnetic bodies, change the geometry of rotatable soft magnetic bodies, can effectively change rotatable soft magnetic bodies and two rules that fixedly air gap changes between the soft magnetic bodies, and then can regulate two fixedly soft magnetic bodies magnetic field exit change of magnetic field strength rules, this assembly changes to " magnetic labile state " from " magnetic stable state " needs the external force work done in rotatable soft magnetic bodies, show that promptly this assembly is for external influence power, exist " reluctance force ", and this assembly is got back to the process of " magnetic stable state " from " magnetic labile state ", then do not need the external force work done, this assembly self has the trend that returns to " magnetic stable state " automatically from " magnetic labile state ", it is to realize by the intrinsic magnetic energy storage of permanent magnet that assembly automatically restores to " magnetic stable state ", promptly this assembly exists " magnetic restoring force " for external influence power.

6. permanent magnet according to claim 5 and soft magnetic bodies interact and obtain the method for variation magnetic field, it is characterized in that: identical " " carry out magnetic isolates magnetic field pulsatile change assembly with two magnetic properties, and with the rotation soft magnetic bodies in these two assemblies by coupling together with an interlinked mechanism, when interlinked mechanism connects the rotation soft magnetic bodies, make one " magnetic field pulsatile change assembly " be in " magnetic stable state ", and make another " magnetic field pulsatile change assembly " be in " magnetic labile state ", these two " magnetic field pulsatile change assemblies " are acted on be tending towards minimum making a concerted effort on the same interlinked mechanism, promptly make " reluctance force " and " magnetic restoring force " sum on another " magnetic field pulsatile change assembly " on one " magnetic field pulsatile change assembly " be tending towards minimum, so just constituted a kind of being referred to as " lower resistance pulsatile change magnetic field units ", in this unit, when rotating soft magnetic bodies constantly, when periodically rotating, in an assembly, form the part of " reluctance force " can be by another assembly in " magnetic restoring force " offset, like this, two couple of this " lower resistance pulsatile change magnetic field units " fixedly soft magnetic bodies load magnetic field exit just can produce two groups and have dephased pulsatile change magnetic field, the rotation soft magnetic bodies of keeping this pulsatile change magnetic field units needed external force when rotation soft magnetic bodies rotates in the needed external force just single much smaller than keeping " magnetic field pulsatile change assembly " that rotatablely moves, just can be with less mechanical energy input, to obtain the higher relatively pulsatile change magnetic field of Energy Efficiency Ratio.

7. permanent magnet and soft magnetic bodies interact and obtain the device of variation magnetic field, it is characterized in that: this device formation includes, rotatable permanent magnet, fixing soft magnetic bodies and every magnet, fixedly soft magnetic bodies is two, two fixedly soft magnetic bodies surround two magnetic pole strengths of permanent magnet, two fixedly exist minimum air gap between soft magnetic bodies and the permanent magnet, two are fixedly separated every magnet between the soft magnetic bodies, thereby constituted one " alternate magnetic field component ", the permanent magnetism physical efficiency fixedly rotatablely moves in the soft magnetic bodies at have small air gap very with it two, permanent magnet cyclic magnetization soft magnetic bodies, can two fixedly the load magnetic field exit place of soft magnetic bodies obtain alternate magnetic field.

8. permanent magnet according to claim 7 and soft magnetic bodies interact and obtain the device of variation magnetic field, it is characterized in that: also include a rotation soft magnetic bodies during it constitutes, fixedly be relatively set with salient pole in the middle part of the soft magnetic bodies at two, two salient poles have constituted the fixedly controlling magnetic field exit of soft magnetic bodies, band arc rectangular cylinder rotation soft magnetic bodies is between these two arc salient poles, and leave minimum rotation air gap, when rotation soft magnetic bodies band arc rectangle major axis is the level of state, there is very little air gap between rotation soft magnetic bodies and two salient poles, when rotating soft magnetic bodies band arc rectangle major axis in vertical state, the rotation soft magnetic bodies is a maximum with air gap between two salient poles, has so constituted a kind of " scalable alternate magnetic field component ".

9. permanent magnet according to claim 7 and soft magnetic bodies interact and obtain the device of variation magnetic field, it is characterized in that: it also includes a soft magnetic bodies and a magnet exciting coil that plays the short circuit effect in constituting, fixedly connect with a soft magnetic bodies that plays the short circuit effect in the middle part of the soft magnetic bodies at two, and add magnet exciting coil in this soft magnetic bodies periphery of playing the short circuit effect, when magnet exciting coil does not feed exciting current, the soft magnetic bodies that plays the short circuit effect is with the whole short circuits of the magnetic line of force of permanent magnet, feed the electric current of certain orientation when magnet exciting coil, the soft magnetic bodies that plays the short circuit effect is magnetized, form magnetic polarity, the soft magnetic bodies that plays the short circuit effect so just can stop permanent magnet magnetic line of force process self and short circuit, like this, permanent magnet magnetic energy just can arrive fixedly soft magnetic bodies magnetic field exit, so constitutes another kind of " scalable alternate magnetic field component ".

10. interact according to claim 7 or 8 or 9 described permanent magnets and soft magnetic bodies and obtain the device of variation magnetic field, it is characterized in that: its formation also includes every the magnetic connecting axle, choose two magnetic properties identical " alternate magnetic field component " or " scalable alternate magnetic field component ", connect rotatable permanent magnet or rotatable soft magnetic bodies in two " assemblies " with same every the magnetic connecting axle, make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", " assembly " acts on and is tending towards minimum same making a concerted effort on the magnetic connecting axle to make these two, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so constitute one " lower resistance alternate magnetic field units " or " scalable lower resistance alternate magnetic field units ".

11. interacting, permanent magnet according to claim 10 and soft magnetic bodies obtain the device of variation magnetic field, it is characterized in that: " lower resistance alternate magnetic field units " that several are above-mentioned or the rotatable permanent magnet in " scalable lower resistance alternate magnetic field units " are connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance alternate magnetic field units " or " scalable lower resistance alternate magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into " lower resistance alternate field system " or " scalable lower resistance alternate field system " for minimum.

Obtain the variation magnetic field device 12. interact according to claim 10 or 11 described permanent magnets and soft magnetic bodies, it is characterized in that: " the lower resistance alternate magnetic field units " that several are above-mentioned or " scalable lower resistance alternate magnetic field units " or " lower resistance alternate field system " or " scalable lower resistance alternate field system " are evenly arranged by circle-shaped or wire, permanent magnet in each " unit " or " system " is connected in same interlinked mechanism, all rotatable permanent magnets rotate with unequal angular velocity, and all rotatable soft magnetic bodies are also rotated with unequal angular velocity.

13. interacting, permanent magnet and soft magnetic bodies obtain the device of variation magnetic field, it is characterized in that: this device formation includes permanent magnet, fixing soft magnetic bodies, every magnet and rotation soft magnetic bodies, permanent magnet is the rectangle or the shape of a hoof, permanent magnet N extremely is close to a fixedly soft magnetic bodies, permanent magnet S extremely also is close to another fixedly soft magnetic bodies, fixedly an end of soft magnetic bodies is close to permanent magnet pole, the other end is the fixing load magnetic field exit of soft magnetic bodies, fixedly be relatively set with salient pole in the middle part of the soft magnetic bodies at two, two salient poles have constituted the fixedly controlling magnetic field exit of soft magnetic bodies, band arc rectangular cylinder rotation soft magnetic bodies is at these two fixedly between the soft magnetic bodies band arc salient pole, and leave minimum rotation air gap, when band arc rectangle rotation soft magnetic bodies major axis is the level of state, there is very little air gap between rotation soft magnetic bodies and two salient poles, when band arc rectangle rotates the soft magnetic bodies major axis in vertical state, the rotation soft magnetic bodies is a maximum with air gap between two salient poles, has so constituted one " pulsatile change magnetic field component ".

14. interacting, permanent magnet according to claim 13 and soft magnetic bodies obtain the device of variation magnetic field, it is characterized in that: its formation also includes one every the magnetic connecting axle, choose two magnetic properties identical " pulsatile change magnetic field component ", connect rotation soft magnetic bodies in two " pulsatile change magnetic field component " with same every the magnetic connecting axle, and make one " assembly " be in " magnetic stable state ", and make another " assembly " be in " magnetic labile state ", this two " assembly " acted on be tending towards minimum same making a concerted effort on the magnetic connecting axle, promptly make " reluctance force " and " magnetic restoring force " sum on another " assembly " on one " assembly " be tending towards minimum, so constitute one " lower resistance pulsatile change magnetic field units ".

15. interacting, permanent magnet according to claim 14 and soft magnetic bodies obtain the device of variation magnetic field, it is characterized in that: the rotation soft magnetic bodies in " lower resistance pulsatile change magnetic field units " that several are above-mentioned is connected in same every the magnetic connecting axle or be connected in same interlinked mechanism, make each " lower resistance pulsatile change magnetic field units " act on same every the magnetic connecting axle or act on same interlinked mechanism make a concerted effort so be built into one " lower resistance pulsatile change field system " for minimum.

Obtain the variation magnetic field device 16. interact according to claim 14 or 15 described permanent magnets and soft magnetic bodies, it is characterized in that: " lower resistance pulsatile change magnetic field units " or " lower resistance pulsatile change field system " that several are above-mentioned are evenly arranged by circle-shaped or wire, rotation soft magnetic bodies in each " lower resistance pulsatile change magnetic field units " or " the lower resistance pulsatile change field system " is connected in same interlinked mechanism, and all rotation soft magnetic bodies are rotated with unequal angular velocity.

17. interacting, permanent magnet and soft magnetic bodies obtain the device of variation magnetic field, it is characterized in that: this device formation includes permanent magnet, " H " shape soft magnetic bodies and every magnet, permanent magnet is the rectangle or the shape of a hoof, permanent magnet N extremely is close to upper end, " H " shape soft magnetic bodies right side, permanent magnet S extremely also is close to upper end, " H " shape soft magnetic bodies left side, two lower ends of " H " shape soft magnetic bodies are soft magnetic bodies magnetic field exit, lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies outer race is equipped with magnet exciting coil, when magnet exciting coil does not feed exciting current, " H " shape soft magnetic bodies middle part transverse part branch will make the two poles of the earth of permanent magnet be in the magnet short-cut path state, feed the electric current of determining direction when magnet exciting coil, lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies is encouraged by exciting current and magnetizes, its left end presents the S utmost point, right-hand member presents the N utmost point, when magnet exciting coil feeds rated current, the magnetic field intensity of lateral part, " H " shape soft magnetic bodies middle part soft magnetic bodies left end S utmost point equals permanent magnet S pole field intensity, the magnetic line of force in permanent magnet magnetic loop just again can be through the middle part lateral part short circuit of " H " shape soft magnetic bodies, magnetic field of permanent magnet is directed into the magnetic field exit of soft magnetic bodies lower end, regulate the size of magnet exciting coil electric current, just can regulate, so constitute another kind of " scalable pulsatile change magnetic field component " the pulsatile change magnetic field intensity of soft magnetic bodies magnetic field exit.

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