CN106972729A - Circular Winding magnetic field modulation linear electric motors - Google Patents
Circular Winding magnetic field modulation linear electric motors Download PDFInfo
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- CN106972729A CN106972729A CN201710330948.7A CN201710330948A CN106972729A CN 106972729 A CN106972729 A CN 106972729A CN 201710330948 A CN201710330948 A CN 201710330948A CN 106972729 A CN106972729 A CN 106972729A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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Abstract
Circular Winding magnetic field modulation linear electric motors, belong to machine field.The problem of solving caused by the end length of traditional line magneto winding and the winding mode of winding complicated insulating process between waste of material, winding, big motor force oscillation and low efficiency.The present invention includes primary and secondary, there is gap between primary and secondary, coordinated using primary and secondary pole groove and Circular Winding, played a part of " pole-changing " using non-uniform gap magnetic conductance, armature winding magnetomotive force interacts with air-gap permeance, produce and secondary permanent magnet number of poles identical magnetic field, then two magnetic field interactions generation constant thrust, and then breach the necessary identical limitation of the primary and secondary number of poles of traditional line permagnetic synchronous motor.Secondary permanent magnet number of pole-pairs P, primary every side slot number Q, and armature winding fundamental wave magnetomotive force number of pole-pairs S need to meet following relation：P=Q ± S.The present invention is suitable for the occasions such as low speed, high acceleration, big thrust output.
Description
Technical field
The invention belongs to machine field.
Background technology
The armature core tooth pitch τ of traditional unilateral flat plated three-phase linear permanent-magnet synchronous motortWith the pole span τ of permanent magnetpIt
Between meet the τ of relation 3t=τp, a coil side is embedded in each groove, and coil pitch is equal with pole span, and this winding construction is referred to as whole
Number groove Single-layer Windings.The winding of the motor is as shown in figure 1, the coil of A phase windings is wound in first groove and the 4th groove, together
When across second groove and the 3rd groove, the coil of C phase windings is wound in second groove and the 5th groove, at the same across
3rd groove and the 4th groove, by that analogy.The subject matter that this type winding is present is：Each phase winding coil is exposed at
End outside core tooth is long, and each phase winding coil intersects, and so not only wastes coil, increase copper loss, also makes
Insulating process between each phase winding becomes complicated, adds manufacturing cost.Simultaneously as winding is individual layer integral pitch winding, winding
Magnetomotive force and electromotive force harmonic components it is big, the force oscillation of motor is big, efficiency is low, and because the end of winding is long, secondary
Cross-brace span it is big, increase support difficulty.
The content of the invention
The present invention is to solve material caused by the end length of traditional line magneto winding and the winding mode of winding
Material wastes, insulating process is complicated between winding, big motor force oscillation and the problem of low efficiency, and the invention provides a kind of annular
Winding magnetic field modulates linear electric motors, and the way of realization of the motor is specific as follows：
Scheme one：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and there is air gap between the two,
Secondary is bilateral structure, and primary be arranged on it is bilateral between, the air gap side of bilateral structure is provided with secondary permanent magnet,
The magnetizing direction of secondary permanent magnet is vertical with the direction of motion, and the magnetizing direction phase of unilateral two adjacent secondary permanent magnets
Instead, the magnetizing direction of the secondary permanent magnet of bilateral correspondence position is identical,
Primary includes primary unshakable in one's determination and armature winding, in primary left and right two air gap sides unshakable in one's determination along longitudinal at first level groove,
Armature winding is set in groove, and the armature winding is realized using Circular Winding, and is three-phase symmetric winding form；
The number of pole-pairs of secondary permanent magnet in unilateral secondary is P, in primary left and right two air gap sides unshakable in one's determination, each
Air gap side channel number is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Scheme two：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and there is air gap between the two；
Secondary be concave three-sided configuration, and primary be arranged in the groove of concave three-sided configuration, concave
The air gap side of three-sided configuration is provided with secondary permanent magnet, and the magnetizing direction of secondary permanent magnet is vertical with the direction of motion, and it is unilateral on
The magnetizing direction of two adjacent secondary permanent magnets is on the contrary, the magnetizing direction of the secondary permanent magnet of correspondence position is identical on three sides；
Primary includes primary unshakable in one's determination and armature winding, in primary left and right two air gap sides unshakable in one's determination along longitudinal at first level groove,
In primary unshakable in one's determination lower section air gap side transversely at first level groove, the groove of three air gap sides connects to set armature winding jointly, institute
State armature winding to realize using Circular Winding, and be three-phase symmetric winding form；
The number of pole-pairs of unilateral secondary permanent magnet is P,
Primary each air gap side channel number unshakable in one's determination is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Scheme three：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and there is air gap between the two；
Primary includes main primary unshakable in one's determination, armature winding and two auxiliary primary iron cores；Two auxiliary primary iron cores are located at master
Primary unshakable in one's determination both sides, in main primary left and right two air gap sides unshakable in one's determination along longitudinal direction at first level groove, set in groove it is primary around
Group, the armature winding is realized using Circular Winding, and is three-phase symmetric winding form；
Secondary is bilateral structure, and it is bilateral be located at respectively main primary unshakable in one's determination and two auxiliary primaries it is unshakable in one's determination between, it is secondary
Secondary permanent magnet is embedded with each side, the secondary permanent magnet is secondary simultaneously towards main primary unshakable in one's determination unshakable in one's determination with auxiliary primary
The magnetizing direction of permanent magnet is vertical with the direction of motion, and two secondary permanent magnets adjacent on each side magnetizing direction on the contrary,
The magnetizing direction of the secondary permanent magnet of bilateral correspondence position is identical；
Auxiliary primary iron core is square block, and auxiliary primary air gap side unshakable in one's determination is along longitudinal direction at first level groove, and the primary
Groove is consistent with the primary groove that main primary air gap side unshakable in one's determination is opened；
The number of pole-pairs of secondary permanent magnet in unilateral secondary is P,
Main primary each air gap side channel number unshakable in one's determination is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Embedded armature winding in the primary groove that described auxiliary primary air gap side unshakable in one's determination is opened, the armature winding is used
Circular Winding is realized, and is three-phase symmetric winding form.
Scheme four：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and secondary is located at primary inside, and the two is same
Axle and there is air gap；
Primary to include primary unshakable in one's determination and armature winding, primary iron core is columnar structured, on primary inner surface edge unshakable in one's determination
Circumferencial direction at first level groove, each primary groove is evenly distributed along the direction of motion, and embeds in primary groove armature winding, the primary
Winding is realized using Circular Winding, and is three-phase symmetric winding form；
Secondary is cylinder or columnar structured, and its outer surface is pasted with annular secondary permanent magnet, annular secondary permanent magnetism
The magnetizing direction of body is vertical with the direction of motion, and adjacent two annular secondary permanent magnets magnetizing direction on the contrary,
The number of pole-pairs of annular secondary permanent magnet is P,
The slot number of primary iron core air gap side is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Scheme five：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and primary is located at secondary inside, and the two is same
Axle and there is air gap；
Primary includes primary unshakable in one's determination and armature winding, and primary unshakable in one's determination is cylinder or columnar structured, primary appearance unshakable in one's determination
Face along the circumferential direction at first level groove, each primary groove is evenly distributed along the direction of motion, and embeds armature winding in primary groove, it is described just
Level winding is realized using Circular Winding, and is three-phase symmetric winding form；
Secondary is columnar structured, and secondary inner surface is pasted with annular secondary permanent magnet, annular secondary permanent magnet
Vertical with the direction of motion and adjacent two annular secondary permanent magnets of magnetizing direction magnetizing direction it is opposite；
The number of pole-pairs of annular secondary permanent magnet is P,
The slot number of primary iron core outer surface is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Scheme six：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and primary is located at secondary top, and between the two
There is air gap；
Primary includes primary unshakable in one's determination and armature winding, in primary air gap side unshakable in one's determination transversely at first level groove, is set in groove
Armature winding is put, the armature winding is realized using Circular Winding, and be three-phase symmetric winding form；
Secondary is single-side structural, and secondary air gap side is provided with secondary permanent magnet, the magnetizing direction and fortune of secondary permanent magnet
Dynamic direction is vertical, and the magnetizing direction of two adjacent secondary permanent magnets is opposite；
The number of pole-pairs of secondary permanent magnet is P,
Primary air gap side channel number unshakable in one's determination is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Scheme seven：
Circular Winding magnetic field modulation linear electric motors, it includes primary and secondary, and primary is located at secondary top, and between the two
There is air gap；
Primary includes primary unshakable in one's determination and armature winding, in primary upper and lower surface unshakable in one's determination transversely at first level groove, and each
An armature winding is embedded in primary groove, the armature winding is realized using Circular Winding, and be three-phase symmetric winding form；
Secondary is single-side structural, and secondary air gap side is provided with secondary permanent magnet, the magnetizing direction and fortune of secondary permanent magnet
Dynamic direction is vertical, and the magnetizing direction of two adjacent secondary permanent magnets is opposite；
The number of pole-pairs of secondary permanent magnet is P,
Primary air gap side channel number unshakable in one's determination is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Principle analysis：Coordinate and Circular Winding by using specific primary and secondary pole groove, risen using non-uniform gap magnetic conductance
To the effect of " pole-changing ", armature winding magnetomotive force interacts with air-gap permeance, produces and secondary permanent magnet number of poles identical magnetic
, then two magnetic field interactions produce constant thrust, and then breach the primary and secondary number of poles of traditional line permagnetic synchronous motor must
Must identical limitation.Both winding overhang length and loss had been reduced, electric efficiency has been improved, force oscillation is reduced again, had been reduced
Motor oscillating and noise, at the same the simple in construction of motor, insulation easily, manufacturing cost is low, reliability is high, be suitable for low
The occasions such as speed, high acceleration, big thrust output.
The present invention can improve linear motor pushing force density, reduce force oscillation, reduction motor oscillating and noise, while electric
The simple in construction of machine, manufacturing cost are low, reliability is high, are suitable for the occasions such as low speed, high acceleration, big thrust output.
Brief description of the drawings
Fig. 1 is the winding principle schematic of the plate permanent magnet linear synchronous motor described in background technology；Wherein, X tables
Show that reverse, the Y of A phase windings represent that reverse, the Z of B phase windings represent the reverse of C phase windings；
Fig. 2 is the three dimensional structure diagram of the Circular Winding magnetic field modulation linear electric motors described in embodiment one；
Fig. 3 is the front view of motor shown in Fig. 2；
Fig. 4 is sectional views of the Fig. 3 in B-B directions；
Fig. 5 is sectional views of the Fig. 3 in A-A directions.
Fig. 6 is the three dimensional structure diagram of the Circular Winding magnetic field modulation linear electric motors described in embodiment two；
Fig. 7 is Fig. 6 top view；
Fig. 8 is Fig. 6 side view；
Fig. 9 is the three dimensional structure diagram of the Circular Winding magnetic field modulation linear electric motors described in embodiment three；
Figure 10 is Fig. 9 top view；
Figure 11 is Fig. 9 side view；
Figure 12 is the three dimensional structure diagram of the Circular Winding magnetic field modulation linear electric motors described in embodiment four；
Figure 13 is Figure 12 top view；
Figure 14 is Figure 12 side view；
Figure 15 is the three dimensional structure diagram of the Circular Winding magnetic field modulation linear electric motors described in embodiment five；
Figure 16 is Figure 15 side view；
Figure 17 is Figure 15 main sectional view；
Figure 18 is the secondary structural representation of the Circular Winding magnetic field modulation linear electric motors described in embodiment six；
Figure 19 is the phase between the primary and secondary of the Circular Winding magnetic field modulation linear electric motors described in embodiment six
To location diagram；
Figure 20 is sectional views of the Figure 19 in A-A directions；
Figure 21 is the three dimensional structure diagram for the Circular Winding magnetic field modulation linear electric motors that embodiment seven is stated；
Figure 22 is Figure 21 front view；
Figure 23 is Figure 21 side view；
Figure 24 is the three dimensional structure diagram for the Circular Winding magnetic field modulation linear electric motors that embodiment eight is stated；
Figure 25 is Figure 24 front view；
Figure 26 is Figure 24 upward view；
Figure 27 is Figure 24 side view.
Embodiment
Embodiment one：Illustrate present embodiment referring to Fig. 2 to Fig. 5, the Circular Winding magnetic described in present embodiment
Modulation linear electric motors, it includes primary 1 and secondary 2, and there is air gap between the two,
Secondary 2 is bilateral structure, and primary 1 be arranged on it is bilateral between, the air gap side of bilateral structure is provided with secondary permanent magnetism
Body 2-1, secondary permanent magnet 2-1 magnetizing direction is vertical with the direction of motion, and unilateral two adjacent secondary permanent magnet 2-1
Magnetizing direction on the contrary, the secondary permanent magnet 2-1 of bilateral correspondence position magnetizing direction is identical,
Primary 1 includes primary iron core 1-1 and armature winding 1-2, in primary iron core 1-1 left and right two air gap sides along indulging
To at first level groove, set armature winding 1-2, the armature winding 1-2 to be realized using Circular Winding in groove, and be three-phase symmetrical
Winding configuration；
The number of pole-pairs of secondary permanent magnet 2-1 on unilateral secondary 2 is P, primary iron core 1-1 left and right two air gap sides
In, each air gap side channel number is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment, primary iron core can use silicon steel sheet stack to be pressed into, and Circular Winding has shorter end, save
With lower winding temperature rise while copper consumption, due to not having overlapping between winding, mutual inductance can be neglected, and secondary 2 is double
One effective edge of side structure, primary side unshakable in one's determination and winding, a magnetic circuit, the magnetic circuit are constituted with air gap and the secondary of homonymy
For primary-winding-air gap-permanent magnet-secondary-permanent magnet-air gap-winding-primary, then motor has two magnetic circuits, two parts magnetic
Road is parallel with one another, it is possible to achieve the superposition of electromagnetic push, space-saving while increasing the thrust of motor.
Embodiment two：Illustrate present embodiment referring to Fig. 6 to Fig. 8, the Circular Winding magnetic described in present embodiment
Field modulation linear electric motors, it includes primary 1 and secondary 2, and there is air gap between the two；
Secondary 2 is concave three-sided configuration, and primary 1 is arranged in the groove of concave three-sided configuration, " recessed " word
The air gap side of shape three-sided configuration is provided with secondary permanent magnet 2-1, and secondary permanent magnet 2-1 magnetizing direction is vertical with the direction of motion,
And unilateral two adjacent secondary permanent magnet 2-1 magnetizing direction is on the contrary, the secondary permanent magnet 2-1 of correspondence position on three sides
Magnetizing direction is identical；
Primary 1 includes primary iron core 1-1 and armature winding 1-2, in primary iron core 1-1 left and right two air gap sides along indulging
To at first level groove, in primary iron core 1-1 lower section air gap side transversely at first level groove, the groove connections of three air gap sides is set jointly
Put armature winding 1-2, the armature winding 1-2 to realize using Circular Winding, and be three-phase symmetric winding form；
Unilateral secondary permanent magnet 2-1 number of pole-pairs is P,
Primary iron core 1-1 each air gap side channel number is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment, secondary 2 is concave three-sided configuration, and one is added on the basis of bilateral structure effectively
Side so that the space availability ratio of motor is higher, with bigger thrust.
By primary side unshakable in one's determination and an effective edge of winding, a magnetic circuit is constituted with air gap and the secondary of homonymy, is
Primary-winding-air gap-permanent magnet-secondary-permanent magnet-air gap-winding-primary, then motor have three magnetic circuits, it is parallel with one another, can
To realize the superposition of electromagnetic push, space-saving while increasing the thrust of motor.
Embodiment three：Illustrate present embodiment referring to Fig. 9 to Figure 11, the Circular Winding magnetic described in present embodiment
Field modulation linear electric motors, it includes primary 1 and secondary 2, and there is air gap between the two；
Primary 1 includes main primary iron core 1-1, armature winding 1-2 and two auxiliary primary iron core 1-3；Two auxiliary primaries
1-3 unshakable in one's determination is located at main primary iron core 1-1 both sides, in main primary iron core 1-1 left and right two air gap sides along longitudinally at first level
Groove, sets armature winding 1-2, the armature winding 1-2 to be realized using Circular Winding in groove, and is three-phase symmetric winding shape
Formula；
Secondary 2 is bilateral structure, and it is bilateral be located at respectively between main primary 1-1 and two auxiliary primary iron core 1-3 of iron core,
Secondary 2 each side on be embedded with secondary permanent magnet 2-1, the secondary permanent magnet 2-1 simultaneously towards main primary iron core 1-1 with it is auxiliary
Primary iron core 1-3 is helped, secondary permanent magnet 2-1 magnetizing direction is vertical with the direction of motion, and two secondary adjacent on each side
Permanent magnet 2-1 magnetizing direction is on the contrary, the secondary permanent magnet 2-1 of bilateral correspondence position magnetizing direction is identical；
Auxiliary primary iron core 1-3 is square block, and auxiliary primary iron core 1-3 air gap side along longitudinally at first level groove, and
The primary groove is consistent with the primary groove that main primary iron core 1-1 air gaps side is opened；
The number of pole-pairs of secondary permanent magnet 2-1 on unilateral secondary 2 is P,
Main primary iron core 1-1 each air gap side channel number is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment, it is first with Dian level of two layers of air gap and auxiliary by primary side unshakable in one's determination and an effective edge of winding
Level forms a closed magnetic circuit, then magnetic circuit is primary-winding-air gap-secondary-auxiliary primary-air gap-permanent magnet-secondary-permanent magnetism
Body-air gap-winding-primary, then motor is with two magnetic circuits and superposition parallel with one another, because secondary has relative to primary
Smaller weight, smaller volume, for specific use occasion, can with use move secondary forms of motion.
Due to secondary relative to primary with smaller weight, smaller volume is embodied as：Because primary is by primary
Unshakable in one's determination and winding is constituted, overall weight of the weight far above secondary fixation aluminium sheet and permanent magnet, and secondary overall volume is more
It is small, therefore, in specifically operation occasion, move the secondary method of operation more advantageous.
Embodiment four：Illustrate present embodiment, present embodiment and embodiment three referring to Fig. 9 to Figure 14
The difference of described Circular Winding magnetic field modulation linear electric motors is, what described auxiliary primary iron core 1-3 air gap side was opened
Embedded armature winding 1-2, the armature winding 1-2 are realized using Circular Winding in primary groove, and are three-phase symmetric winding form.
Present embodiment, by primary side unshakable in one's determination and an effective edge of winding, with two layers of air gap, secondary and auxiliary is just
Level forms a closed magnetic circuit, then magnetic circuit is primary-winding-air gap-secondary-winding-auxiliary primary-winding-air gap-permanent magnetism
Body-secondary-permanent magnet-air gap-winding-primary, then motor is with two magnetic circuits and superposition parallel with one another, due to secondary phase
There is smaller weight for primary, smaller volume, for specific use occasion, can with use it is dynamic it is secondary in the form of.
In present embodiment, auxiliary primary Exciting Windings for Transverse Differential Protection is added, as the part increase air gap flux density of magnetic circuit, can be entered
One step improves the pushing force density of motor, so as to improve the thrust of motor.
Due to secondary relative to primary with smaller weight, smaller volume is embodied as：Because primary is by primary
Unshakable in one's determination and winding is constituted, overall weight of the weight far above secondary fixation aluminium sheet and permanent magnet, and secondary overall volume is more
It is small.Therefore in specifically operation occasion, the secondary method of operation is moved more advantageous.
Embodiment five：Illustrate present embodiment, the Circular Winding described in present embodiment referring to Figure 15 to Figure 17
Magnetic field modulation linear electric motors, it includes primary 1 and secondary 2, and secondary 2 is located at the inside of primary 1, and the two is coaxial and there is gas
Gap；
Primary 1 includes primary iron core 1-1 and armature winding 1-2, and primary iron core 1-1 is columnar structured, primary unshakable in one's determination
1-1 inner surface along the circumferential direction at first level groove, each primary groove is evenly distributed along the direction of motion, and embeds primary in primary groove
Winding 1-2, the armature winding 1-2 are realized using Circular Winding, and are three-phase symmetric winding form；
Secondary 2 is cylinder or columnar structured, and its outer surface is pasted with annular secondary permanent magnet 2-1, and annular is secondary
Permanent magnet 2-1 magnetizing direction is vertical with the direction of motion, and the magnetizing direction phase of two adjacent annular secondary permanent magnet 2-1
Instead,
Annular secondary permanent magnet 2-1 number of pole-pairs is P,
The slot number of primary iron core 1-1 air gaps side is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment, using the structure of cylindrical linear motor, by primary iron core-winding-air gap-permanent magnet-secondary-
Permanent magnet-air gap-winding-primary constitutes a magnetic circuit, is equivalent to the single-side structural of motor, and is the structure of outer mover, due to
Cylindrical linear motor has uniform air gap so that motor does not have longitudinal end effect, reduces the force oscillation of motor.
Embodiment six：Illustrate present embodiment, the Circular Winding described in present embodiment referring to Figure 18 to Figure 20
Magnetic field modulation linear electric motors, it includes primary 1 and secondary 2, and primary 1 is located at the inside of secondary 2, and the two is coaxial and there is air gap；
Primary 1 includes primary iron core 1-1 and armature winding 1-2, and primary iron core 1-1 is cylinder or columnar structured, primary
1-1 unshakable in one's determination outer surface along the circumferential direction at first level groove, each primary groove is evenly distributed along the direction of motion, and is embedded just in primary groove
Level winding 1-2, the armature winding 1-2 is realized using Circular Winding, and is three-phase symmetric winding form；
Secondary 2 is columnar structured, and the inner surface of secondary 2 is pasted with annular secondary permanent magnet 2-1, and annular is secondary forever
Magnet 2-1 magnetizing direction is vertical with the direction of motion, and the magnetizing direction phase of two adjacent annular secondary permanent magnet 2-1
Instead；
Annular secondary permanent magnet 2-1 number of pole-pairs is P,
The slot number of primary iron core 1-1 outer surfaces is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment, using the structure of cylindrical linear motor, by primary iron core-winding-air gap-permanent magnet-secondary-
Permanent magnet-air gap-winding-primary constitutes a magnetic circuit, is equivalent to the single-side structural of motor, and is the structure of interior mover, due to
Cylindrical linear motor has uniform air gap so that motor does not have longitudinal end effect, reduces the force oscillation of motor.
Embodiment seven：Illustrate present embodiment, the Circular Winding described in present embodiment referring to Figure 21 to Figure 23
Magnetic field modulation linear electric motors, it includes primary 1 and secondary 2, and primary 1 is located at the top of secondary 2, and there is air gap between the two；
Primary 1 includes primary iron core 1-1 and armature winding 1-2, in primary iron core 1-1 air gap side transversely at first level
Groove, sets armature winding 1-2, the armature winding 1-2 to be realized using Circular Winding in groove, and is three-phase symmetric winding shape
Formula；
Secondary 2 is single-side structural, and the air gap side of secondary 2 is provided with secondary permanent magnet 2-1, and secondary permanent magnet 2-1's magnetizes
Direction is vertical with the direction of motion, and the magnetizing direction of two adjacent secondary permanent magnet 2-1 is opposite；
Secondary permanent magnet 2-1 number of pole-pairs is P,
Primary iron core 1-1 air gap side channel number is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τ t,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment is single-side structural, with primary-winding-air gap-permanent magnet-secondary-permanent magnet-air gap-primary structure
Into closed magnetic circuit, because embodiment one to six is natural cooling structure, current density has certain limitations, and the present embodiment can
In another increase cooling device, to improve current density to increase the pushing force density of motor, so as to obtain bigger thrust.
Embodiment eight：Illustrate present embodiment, the Circular Winding described in present embodiment referring to Figure 24 to Figure 27
Magnetic field modulation linear electric motors, it includes primary 1 and secondary 2, and primary 1 is located at the top of secondary 2, and there is air gap between the two；
Primary 1 includes primary iron core 1-1 and armature winding 1-2, on primary iron core 1-1 upper and lower surface transversely at first
Armature winding a 1-2, the armature winding 1-2 are embedded in level groove, and each primary groove to realize using Circular Winding, and are three
Symmetrical winding configuration；
Secondary 2 is single-side structural, and the air gap side of secondary 2 is provided with secondary permanent magnet 2-1, and secondary permanent magnet 2-1's magnetizes
Direction is vertical with the direction of motion, and the magnetizing direction of two adjacent secondary permanent magnet 2-1 is opposite；
Secondary permanent magnet 2-1 number of pole-pairs is P,
Primary iron core 1-1 air gap side channel number is Q,
Armature winding 1-2 fundamental wave magnetomotive force number of pole-pairs is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is
Armature winding MgO-ZrO_2 brick.
Present embodiment is single-side structural, with primary-winding-air gap-permanent magnet-secondary-permanent magnet-air gap-primary structure
Into closed magnetic circuit, because embodiment one to six is natural cooling structure, current density has certain limitations, and this embodiment party
Case can improve current density to increase the pushing force density of motor, so as to obtain bigger in another increase cooling device
Thrust.
Embodiment nine：Illustrate present embodiment, present embodiment and tool referring to Fig. 2 to Fig. 8 and Figure 21 to Figure 27
The difference of Circular Winding magnetic field modulation linear electric motors described in body embodiment one, two, seven or eight is that described primary is unshakable in one's determination
1-1 is square block.
Embodiment ten：Illustrate present embodiment, present embodiment and embodiment three referring to Fig. 9 to Figure 14
Or the difference of the Circular Winding magnetic field modulation linear electric motors described in four is, described main primary iron core 1-1 is square block.
Claims (10)
1. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and exists between the two
Air gap,
Secondary (2) are bilateral structure, and primary (1) be arranged on it is bilateral between, the air gap side of bilateral structure is provided with secondary permanent magnetism
Body (2-1), the magnetizing direction of secondary permanent magnet (2-1) is vertical with the direction of motion, and unilateral two adjacent secondary permanent magnets
The magnetizing direction of (2-1) on the contrary, the magnetizing direction of the secondary permanent magnet (2-1) of bilateral correspondence position is identical,
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), in left and right two air gap sides of primary (1-1) unshakable in one's determination
Along longitudinal at first level groove, armature winding (1-2) is set in groove, and the armature winding (1-2) is realized using Circular Winding, and is
Three-phase symmetric winding form；
The number of pole-pairs of secondary permanent magnet (2-1) on unilateral secondary (2) is P, left and right two air gaps of primary iron core (1-1)
In side, each air gap side channel number is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
2. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and exists between the two
Air gap；
Secondary (2) are concave three-sided configuration, and primary (1) is arranged in the groove of concave three-sided configuration, " recessed " word
The air gap side of shape three-sided configuration is provided with secondary permanent magnet (2-1), and magnetizing direction and the direction of motion of secondary permanent magnet (2-1) are hung down
Directly, and unilateral two adjacent secondary permanent magnets (2-1) magnetizing direction on the contrary, on three sides correspondence position secondary permanent magnet
The magnetizing direction of (2-1) is identical；
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), in left and right two air gap sides of primary (1-1) unshakable in one's determination
Along longitudinal direction at first level groove, in the lower section air gap side of primary (1-1) unshakable in one's determination transversely at first level groove, the groove connection of three air gap sides comes
Common to set armature winding (1-2), the armature winding (1-2) is realized using Circular Winding, and is three-phase symmetric winding form；
The number of pole-pairs of unilateral secondary permanent magnet (2-1) is P,
Each air gap side channel number of primary iron core (1-1) is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
3. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and exists between the two
Air gap；
Primary (1) includes main primary (1-1) unshakable in one's determination, armature winding (1-2) and two auxiliary primary iron cores (1-3)；Two auxiliary
Primary iron core (1-3) is located at the both sides of main primary (1-1) unshakable in one's determination, in left and right two air gap sides of main primary (1-1) unshakable in one's determination along vertical
To at first level groove, armature winding (1-2) is set in groove, the armature winding (1-2) is realized using Circular Winding, and is three-phase
Symmetric winding form；
Secondary (2) are bilateral structure, and it is bilateral be located at respectively main primary (1-1) unshakable in one's determination and two auxiliary primary iron cores (1-3) it
Between, secondary permanent magnet (2-1), the secondary permanent magnet (2-1) are embedded with each side of secondary (2) while towards main primary iron
The heart (1-1) is (1-3) unshakable in one's determination with auxiliary primary, and the magnetizing direction of secondary permanent magnet (2-1) is vertical with the direction of motion, and on each side
The magnetizing direction of two adjacent secondary permanent magnets (2-1) is on the contrary, the side of magnetizing of the secondary permanent magnet (2-1) of bilateral correspondence position
To identical；
Auxiliary primary iron core (1-3) is square block, and auxiliary primary unshakable in one's determination (1-3) air gap side along longitudinal direction at first level groove, and
The primary groove is consistent with the primary groove that main primary (1-1) air gap side unshakable in one's determination is opened；
The number of pole-pairs of secondary permanent magnet (2-1) on unilateral secondary (2) is P,
Each air gap side channel number of main primary (1-1) unshakable in one's determination is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
4. Circular Winding magnetic field modulation linear electric motors according to claim 3, it is characterised in that described auxiliary primary iron
Embedded armature winding (1-2) in the primary groove that the air gap side of the heart (1-3) is opened, the armature winding (1-2) uses Circular Winding
Realize, and be three-phase symmetric winding form.
5. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and secondary (2) are located at
The inside of primary (1), and the two is coaxial and there is air gap；
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), and primary iron core (1-1) is columnar structured, in primary
The inner surface of unshakable in one's determination (1-1) along the circumferential direction at first level groove, each primary groove is evenly distributed along the direction of motion and embedded in primary groove
Armature winding (1-2) is put, the armature winding (1-2) is realized using Circular Winding, and be three-phase symmetric winding form；
Secondary (2) are cylinder or columnar structured, and its outer surface is pasted with annular secondary permanent magnet (2-1), and annular is secondary
The side of magnetizing of two vertical with the direction of motion and adjacent annular secondary permanent magnets (2-1) of the magnetizing direction of permanent magnet (2-1)
To on the contrary,
The number of pole-pairs of annular secondary permanent magnet (2-1) is P,
The slot number of primary iron core (1-1) air gap side is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
6. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and primary (1) is located at
The inside of secondary (2), the two is coaxial and there is air gap；
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), and primary iron core (1-1) is cylinder or columnar structured,
The outer surface of primary iron core (1-1) along the circumferential direction at first level groove, each primary groove is evenly distributed along the direction of motion, and in primary groove
Armature winding (1-2) is embedded, the armature winding (1-2) is realized using Circular Winding, and be three-phase symmetric winding form；
Secondary (2) are columnar structured, and the inner surface of secondary (2) is pasted with annular secondary permanent magnet (2-1), and annular is secondary
The side of magnetizing of two vertical with the direction of motion and adjacent annular secondary permanent magnets (2-1) of the magnetizing direction of permanent magnet (2-1)
To opposite；
The number of pole-pairs of annular secondary permanent magnet (2-1) is P,
The slot number of primary iron core (1-1) outer surface is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
7. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and primary (1) is located at
The top of secondary (2), and there is air gap between the two；
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), in the air gap side of primary iron core (1-1) transversely at first
Level groove, sets armature winding (1-2) in groove, and the armature winding (1-2) is realized using Circular Winding, and for three-phase symmetrical around
Group form；
Secondary (2) are single-side structural, and the air gap side of secondary (2) is provided with secondary permanent magnet (2-1), secondary permanent magnet (2-1)
Magnetizing direction is vertical with the direction of motion, and the magnetizing direction of two adjacent secondary permanent magnets (2-1) is opposite；
The number of pole-pairs of secondary permanent magnet (2-1) is P,
The air gap side channel number of primary iron core (1-1) is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
8. Circular Winding magnetic field modulation linear electric motors, it is characterised in that it includes primary (1) and secondary (2), and primary (1) is located at
The top of secondary (2), and there is air gap between the two；
Primary (1) includes primary (1-1) unshakable in one's determination and armature winding (1-2), on the upper and lower surface of primary (1-1) unshakable in one's determination transversely
An armature winding (1-2) at first is embedded in level groove, and each primary groove, the armature winding (1-2) is real using Circular Winding
It is existing, and be three-phase symmetric winding form；
Secondary (2) are single-side structural, and the air gap side of secondary (2) is provided with secondary permanent magnet (2-1), secondary permanent magnet (2-1)
Magnetizing direction is vertical with the direction of motion, and the magnetizing direction of two adjacent secondary permanent magnets (2-1) is opposite；
The number of pole-pairs of secondary permanent magnet (2-1) is P,
The air gap side channel number of primary iron core (1-1) is Q,
The fundamental wave magnetomotive force number of pole-pairs of armature winding (1-2) is that following relation is met between S, and P, Q and S：
P=Q ± S,
2Pτp=Q τt,
Q=2mkq,
Wherein, τpFor secondary permanent magnet pole span, τtIt is that primary core tooth is the armature winding number of phases away from, m, k is positive integer, and q is primary
Winding MgO-ZrO_2 brick.
9. the Circular Winding magnetic field modulation linear electric motors according to claim 1,2,7 or 8, it is characterised in that described is first
Level (1-1) unshakable in one's determination is square block.
10. the Circular Winding magnetic field modulation linear electric motors according to claim 3 or 4, it is characterised in that described main primary
(1-1) unshakable in one's determination is square block.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109698600A (en) * | 2018-12-10 | 2019-04-30 | 中国科学院电工研究所 | A kind of linear motor with auxiliary weak magnetic structure |
| CN112217369A (en) * | 2019-07-09 | 2021-01-12 | 大族激光科技产业集团股份有限公司 | Linear motor |
| CN113922625A (en) * | 2021-09-15 | 2022-01-11 | 中国人民解放军海军工程大学 | Long primary permanent magnet synchronous motor with annular structure |
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