CN209375421U - A kind of permanent-magnetic switching reluctance motor being exclusively used in unmanned plane - Google Patents
A kind of permanent-magnetic switching reluctance motor being exclusively used in unmanned plane Download PDFInfo
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- CN209375421U CN209375421U CN201920026347.1U CN201920026347U CN209375421U CN 209375421 U CN209375421 U CN 209375421U CN 201920026347 U CN201920026347 U CN 201920026347U CN 209375421 U CN209375421 U CN 209375421U
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- 230000005284 excitation Effects 0.000 claims abstract description 92
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 25
- 150000001875 compounds Chemical class 0.000 description 23
- 238000010586 diagram Methods 0.000 description 13
- 230000003068 static effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of permanent-magnetic switching reluctance motors for being exclusively used in unmanned plane, its main feature is that, magnetic conduction steel loop forms flange in rotator seat outer edge, the arc-shaped permanent magnet of even number is tightly attached to the flange inner wall, arc-shaped permanent magnet intermediate section is wide, left and right ends gradually narrow ladder-like for width, the arc-shaped permanent magnet head and the tail of even number are staggeredly harmonious, and there are gaps, magnetic polarity direction is radial, the magnetic polarity of adjacent circular arc shape permanent magnet is different, it is fixed on the arc surface and outer rotor of stator seat excitation pole shoe unit that there are air gaps between arc-shaped permanent magnet arc surface.Armature spindle one end is fixed with rotator seat center, and the other end passes through stator seat centre bore, is supported by ball bearing, in addition, being provided with radial positioning ball bearing in the middle part of armature spindle, the end of armature spindle is provided with thrust ball bearing.The utility model axial dimension is short, and torque is big, light-weight, good heat dissipation, and Energy Efficiency Ratio is high, is able to satisfy the particular requirement of unmanned plane.
Description
Technical field
The utility model relates to a kind of permanent-magnetic switching reluctance motor, the small ultra-thin permanent magnetism of in particular a kind of axial dimension is opened
Close reluctance motor.
Background technique
There are four motor drives to go up to the air for the vertical lift wing of ultra-small drone, and the Energy Efficiency Ratio of motor itself becomes
One of the key factor of unmanned plane performance superiority and inferiority.Unmanned plane is to obtain biggish lift-off power, it is desirable that the rotation torque of motor is big,
Motor heat dissipation performance is good, and own wt is light.
Summary of the invention
The purpose of the utility model is to provide a kind of small ultrathin permanent-magnetic switching reluctance motors of axial dimension.
For achieving the above object, the technical solution of the utility model is a kind of permanent-magnetic switching for being exclusively used in unmanned plane
Reluctance motor, composition include stator, outer rotor, position sensor and excitation control power supply, it is characterised in that: described outer
Rotor is made of rotator seat ontology, armature spindle, magnetic conduction steel loop and permanent magnet, and magnetic conduction steel loop is mounted in the outer edge of rotator seat ontology
Place, to form flange, the arc-shaped permanent magnet of even number is tightly attached on the inner wall of rotator seat flange, among each arc-shaped permanent magnet
Section is the wide section of circular arc, and the left and right ends of arc-shaped permanent magnet are the ladder section that width gradually narrows, even number circular arc
The ladder section of shape permanent magnet is staggeredly harmonious from beginning to end each other, but does not contact and there are gap, the magnetic of the arc-shaped permanent magnet of even number
Polarity direction is radial, and the magnetic polarity of two neighboring arc-shaped permanent magnet is different, and the stator is by stator seat and even number
Excitation pole shoe unit is constituted, and the excitation pole shoe unit is made of an iron core and a magnet exciting coil, and there are two iron core tools
Arc-shaped pole shoe, even number excitation pole shoe unit are fixed on stator seat, even number excitation pole shoe unit by symmetry axis of rotation axis
Arc-shaped pole shoe at facade formed with the arc-shaped permanent magnet rotation of even number on outer rotor magnetic conduction steel loop inner wall
Facade be overlapped, center of circle angle and each excitation pole shoe list between the wide section radial centre lines of the arc-shaped permanent magnet of any two
Center of circle angle is equal between the radial centre lines of the arc-shaped pole shoe of member, fixes at armature spindle one end and rotator seat center, armature spindle
The other end passes through stator seat centre bore, and is in be rotatably connected with stator seat by ball bearing, sets in the middle part of this outer rotor shaft
It is equipped with radial positioning ball bearing, the end of armature spindle is additionally provided with thrust ball bearing.
In the above-mentioned technical solutions, the arc-shaped permanent magnet quantity of the outer rotor magnetic conduction steel loop inner wall setting is 6 or 8
A or 10 or 12 or 14 or 16 or 18, with the setting of above-mentioned outer rotor magnetic conduction steel loop inner wall arc-shaped permanent magnet number
Amount corresponds, on stator seat the quantity of excitation pole shoe unit be respectively 4 or 6 or 8 or 10 or 12 or 14 or
16.
In the above-mentioned technical solutions, the stator is made of stator seat and excitation pole shoe unit, the excitation pole shoe unit
It is made of there are two arc-shaped pole shoe iron core with a magnet exciting coil a tool, stator seat is X-shaped bracket, four excitation pole shoes
Unit is arranged and is fixed on four vacancies of X-shaped bracket, the outer edge of eight iron core pole shoes of four excitation pole shoe units
Line is concentric circles, and central angle corresponding to the pole shoe cambered surface of the arc-shaped pole shoe iron core of excitation pole shoe unit is 24 degree,
Central angle corresponding to the radial centre lines of two pole shoes of the same excitation pole shoe unit is 60 jiaos；The outer rotor is by rotor
Seat, armature spindle and permanent magnet are constituted, and magnetic conduction steel loop is installed on the outer edge of rotator seat ontology, to form flange, six circular arcs
Shape permanent magnet is tightly attached on the inner wall of rotator seat flange, and each arc-shaped permanent magnet intermediate section is the wide section of circular arc, circular arc
The left and right ends of shape permanent magnet are the ladder section that width gradually narrows, and central angle corresponding to the wide section of circular arc is 25
Degree is to 35 degree, and central angle corresponding to the ladder section of left and right ends is 25 degree to 35 degree, this six arc-shaped
The ladder section of permanent magnet is staggeredly harmonious from beginning to end each other, but does not contact and there are gap, the magnetic poles of this six arc-shaped permanent magnets
Property to be directed toward be radial, and the magnetic polarity of two neighboring arc-shaped permanent magnet is different, consolidates at armature spindle one end and rotator seat center
Fixed, the armature spindle other end passes through stator seat X-shaped carriage center hole, and is in be rotatably connected with stator seat by ball bearing,
Radial positioning ball bearing is provided in the middle part of this outer rotor shaft, the end of armature spindle is additionally provided with thrust ball bearing.
In the above-mentioned technical solutions, air-cooled blade is provided on rotator seat ontology, cover board is then tightly attached to rotator seat from axial
Ontology, there are air ducts between cover board and rotator seat ontology.
In the above-mentioned technical solutions, central angle corresponding to the wide section in centre of the arc-shaped permanent magnet is 30
It spends, central angle corresponding to the ladder section that the left and right ends section of arc-shaped permanent magnet gradually narrows for width is 30
Degree.
In the above-mentioned technical solutions, the center of circle corresponding to the pole shoe cambered surface of the arc-shaped pole shoe iron core of the excitation pole shoe unit
Angle is 20 degree, and central angle corresponding to the radial centre lines of two pole shoes of the same excitation pole shoe unit is 60 degree.
In the above-mentioned technical solutions, the position sensor using Hall sensor and is fixed on stator seat, several are suddenly
You are formed by circumference sensor arrangement by the center of circle of motor axis, and the circumference linear diameter of position sensor omits
Less than the internal diameter of the constituted permanent magnet circle ring of permanent magnet arc-shaped on rotor, specific setting position of the position sensor on circumference
The following conditions to be met are set, i.e., in rotor rotation process, when the wide section of the arc-shaped permanent magnet of some in permanent magnet circle ring
When radial centre lines are overlapped with the radial centre lines of some excitation pole shoe unit pole shoe on stator, some set position sensing
Device faces some axial slits of permanent magnet circle ring, and when permanent magnet circle ring axial slits pass through the position sensor, which is passed
Sensor can detect two neighboring arc-shaped permanent magnet ladder section axial slits magnetic polarity variation, and export electric signal to swash
Control power supply is encouraged, makes to be input to the field excitation salient pole exciting current direction in magnet exciting coil is changed.
In the above-mentioned technical solutions, the excitation pole shoe unit is by an iron core, two magnet exciting coils and two permanent magnets
It constitutes, iron core tool is there are two arc-shaped pole shoe, which is symmetrical arranged there are two inverted " t " word notch, and two notches are laterally empty
Between two magnet exciting coils of coiling respectively, two notch vertical direction spatials are respectively embedded into two permanent magnets.This structure excitation pole shoe unit
For compound rectifier excitation pole shoe unit, the magnet exciting coil of the compound rectifier excitation pole shoe unit can generate excitation magnetic under input current excitation
It is logical, while the permanent magnet flux of permanent magnet can also be imported into magnetic flux circuit, it forms magnetic flux and is superimposed with permanent magnet flux
Compound rectifier excitation magnetic flux.
The advantages of the utility model, has, and first, axial dimension is small, ultra-thin, meets the particular requirement of unmanned plane.The second,
The rotation torque of motor is big, and own wt is light, can obtain biggish lift-off power for unmanned plane.Third, motor heat dissipation performance
It is good, the 4th, using the design of compound rectifier excitation pole shoe unit, the rotation torque of motor is further increased, electric energy is saved and disappears
Consumption, improves motor service efficiency.
Detailed description of the invention
Fig. 1 is the appearance schematic diagram of the utility model embodiment one.
Fig. 2 is the structural profile illustration of the utility model embodiment one.
Fig. 3 is in the utility model embodiment one, stator seat and four excitation pole shoe units and six arc-shaped permanent magnets
Positional diagram.
Fig. 4 is in the utility model embodiment one, and position sensor is illustrated with stator and six arc-shaped magnet structures
Figure.
Fig. 5 is X-shaped stator seat structural schematic diagram in the utility model embodiment one.
Fig. 6 is bipolar shoe core configuration schematic diagram in the utility model embodiment one.
Fig. 7 is bipolar shoe core structure schematic diagram in the utility model embodiment one.
Fig. 8 is the arc-shaped permanent magnet appearance schematic diagram of three ranks in the utility model embodiment one.
Fig. 9 is the arc-shaped magnet structure schematic diagram of three ranks in the utility model embodiment one.
Figure 10 is the top view of Fig. 9.
Figure 11 is in the utility model embodiment two, stator seat and four excitation pole shoe units and six arc-shaped permanent magnets
Positional diagram.
Figure 12 is the structural representation of stator and six arc-shaped permanent magnets and magnetic conduction steel loop in the utility model embodiment two
Figure.
Figure 13 is the core structure schematic diagram of compound rectifier excitation pole shoe unit in the utility model embodiment two.
Figure 14 is the non-additional permanent magnet of compound rectifier excitation pole shoe unit in the utility model embodiment two, magnet exciting coil input
Exciting current, two pole shoes form most short closed magnetic loop schematic diagram with permanent magnet on rotor.
Figure 15 is in the utility model embodiment two, and compound rectifier excitation pole shoe unit is attached with permanent magnet, and magnet exciting coil is not defeated
Enter exciting current, two permanent magnets are forming permanent magnet circuit schematic diagram through excitation pole shoe unit iron core.
Figure 16 is compound rectifier excitation pole shoe unit in the utility model embodiment two, in magnet exciting coil input positive incentive electricity
Stream, two pole shoes form most short closure compound rectifier excitation circuit diagram with permanent magnet on rotor and magnetic conduction steel loop.
Figure 17 is compound rectifier excitation pole shoe unit in the utility model embodiment two, there is magnet exciting coil input reverse energization electricity
Stream, two pole shoes form most short closure compound rectifier excitation circuit diagram with permanent magnet on rotor and magnetic conduction steel loop.
Figure 18 is the structural profile illustration of the utility model embodiment two.
In the figures above, 401 be rotor cover board, and 402 be air-cooled blade, and 403 be rotator seat ontology, and 404 be rotor magnetic conduction
Steel loop, 405 be arc-shaped permanent magnet, and 406 be armature spindle, and 407 be ball bearing, and 408 be thrust ball bearing, and 409 be that X-shaped is fixed
Stroma, 410 be bipolar boots iron core, and 411 be magnet exciting coil, and 412 be excitation pole shoe unit pressing plate, and 413 be arc-shaped permanent magnet I,
414 be arc-shaped permanent magnet II, and 415 be arc-shaped permanent magnet III, and 416 be arc-shaped permanent magnet IV, and 417 be arc-shaped permanent magnet
V, 418 be arc-shaped permanent magnet VI, and 419 be position sensor, and 419 be position sensor I, and 420 be magnet exciting coil I, and 421 are
Magnet exciting coil II, 422 be position sensor II, and 423 be magnet exciting coil III, and 424 be magnet exciting coil IV, and 425 be iron core pole shoe,
426 be iron core pole shoe, and 427 be iron core pole shoe, and 428 be iron core pole shoe, and 451 be iron core pole shoe, and 452 be iron core pole shoe II.460 are
Arc-shaped permanent magnet, 461 be iron core, and 462 be permanent magnet, and 463 be magnet exciting coil, and 464 be X-shaped stator support, and 465 be magnetic conduction
Steel loop, 466 be position sensor, and 467 be the axial slits between adjacent circular arc shape permanent magnet, and 468 be arc-shaped pole shoe, 469
It is the horizontal space of inverted T-shape notch, 470 be the longitudinal space of inverted T-shape notch, and 471 be magnet exciting coil I, and 472 be excitation wire
Circle II, 473 be the non-additional permanent magnet of compound rectifier excitation pole shoe unit, and 474 be I input stimulus electric current of magnet exciting coil, two pole shoes with
Permanent magnet and magnetic conduction steel loop form the magnetic flux magnetic line of force and the direction of most short closed magnetic loop on rotor, and 475 be permanent magnet I,
476 be permanent magnet II, and 477 be the non-input stimulus electric current of magnet exciting coil, the static permanent-magnet magnetic that permanent magnet I is formed in iron core is formed
The logical magnetic line of force and direction, 478 be the non-input stimulus electric current of magnet exciting coil, the static permanent magnetism that permanent magnet II is formed in iron core is formed
The magnetic flux magnetic line of force and direction, 479 be that magnet exciting coil I and magnet exciting coil II are connected, and positive incentive electric current is inputted, by magnet exciting coil I
Generated I magnetic line of force of magnetic flux and direction, 480 be that magnet exciting coil I and magnet exciting coil II are connected, input positive incentive electricity
Stream, II magnetic line of force of magnetic flux and direction as caused by magnet exciting coil II, 481 be that magnet exciting coil I and magnet exciting coil II are connected,
Positive incentive electric current, the dynamic magnetic flux magnetic line of force of permanent magnet I and direction are inputted, 482 be that magnet exciting coil I and magnet exciting coil II are gone here and there
Connection inputs positive incentive electric current, the static-magnetic line of force of permanent magnet II and direction, and 483 be that magnet exciting coil I and magnet exciting coil II are gone here and there
Connection inputs reverse energization electric current, and I magnetic line of force of magnetic flux and direction as caused by magnet exciting coil I, 484 be I He of magnet exciting coil
Magnet exciting coil II is connected, input reverse energization electric current, II magnetic line of force of magnetic flux and direction as caused by magnet exciting coil II,
485 be that magnet exciting coil I and magnet exciting coil II are connected, and inputs reverse energization electric current, the dynamic magnetic flux magnetic line of force of permanent magnet II and side
To, 486 be that magnet exciting coil I and magnet exciting coil II are connected, reverse energization electric current, the static-magnetic line of force of permanent magnet I and direction are inputted,
487 be magnetic conduction steel loop, and 488 be the arc-shaped permanent magnet of three ranks, and 489 be magnet exciting coil, and 490 be bipolar boots iron core, and 491 be X-shaped
Stator seat, 492 be permanent magnet.
Specific embodiment
Embodiment one, the permanent-magnetic switching reluctance motor shape that the present embodiment is exclusively used in unmanned plane is as shown in Fig. 1, knot
Structure section is as shown in Fig. 2.
In the present embodiment, motor stator is made of X-shaped stator seat 409 and excitation pole shoe unit, excitation pole shoe unit
It is made of there are two arc-shaped pole shoe iron core 410 with a magnet exciting coil 411 tool, four excitation pole shoe units are arranged and consolidate
Four vacancies of X-shaped stator seat 409 are scheduled on, eight iron core pole shoe outer edge lines of four excitation pole shoe units are concentric
Circle.
In the present embodiment, outer rotor is made of rotator seat, armature spindle 406 and six arc-shaped permanent magnets 405, wherein rotor
Seat is made of rotator seat ontology 403, rotor cover board 401 and rotor magnetic conduction steel loop 404 again, and magnetic conduction steel loop 404 is installed on rotator seat
The outer edge of ontology 403, to form flange, six arc-shaped permanent magnets are tightly attached to rotator seat magnetic conduction steel loop 404 and form flange
Inner wall on, be provided with air-cooled blade 402 on rotator seat ontology 403, cover board 401 is then tightly attached to rotator seat ontology 403 from axial,
There are air ducts between pressing plate and rotator seat ontology.
In the present embodiment, the positional relationship such as attached drawing of stator seat and four excitation pole shoe units and six arc-shaped permanent magnets
Shown in 3.Exist between the arc surface of six arc-shaped permanent magnets on the pole shoe arc surface and outer rotor of four excitation pole shoe units
Air gap.The shape of six arc-shaped 413,414,415,416,417,418 intermediate sections of permanent magnet is equivalent width circle arced strip
Shape, the left and right ends section of six arc-shaped permanent magnets are three stairsteppings that width gradually narrows, and are fixed on outer rotor magnetic conduction
On steel loop inner wall flange inner wall three stairstepping sections of six arc-shaped permanent magnets each other from beginning to end staggeredly be harmonious, but do not contact and
There are gaps, and as shown in Fig. 3, the magnetic polarity direction of this six arc-shaped permanent magnets is radial, and two neighboring arc-shaped
The magnetic polarity of permanent magnet is different, if the exterior arc surface of an arc-shaped permanent magnet is in the pole N, inner arc surface is in the pole S, circle adjacent thereto
The exterior arc surface of arc-shaped permanent magnet is in the pole S, and inner arc surface is in the pole N.Four excitation pole shoe units are set to X-shaped stator seat 409
Neutral gear up and down at, and it is with pressing plate 412 that four excitation pole shoe units and X-shaped stator seat 409 is fixed.
In the present embodiment, central angle corresponding to the pole shoe cambered surface of the single arc-shaped pole shoe iron core of excitation pole shoe unit is two
Ten degree, central angle corresponding to the radial centre lines of two pole shoes of the same excitation pole shoe unit is 60 degree (referring to attached drawing 7).
Central angle corresponding to the consistent zonal and arc section of intermediate width of single arc-shaped permanent magnet is 30 degree, left and right ends ladder
Central angle corresponding to shape section is 30 degree (referring to attached drawings 9).
In the present embodiment, the assembly relation of outer rotor and stator is, as shown in Fig. 2,406 one end of armature spindle and rotator seat
Ontology is fixed at 403 center, 406 other end of armature spindle pass through 409 centre bore of X-shaped stator seat, and by ball bearing 407 with
For stator seat 409 in being rotatably connected, the end of this outer rotor shaft 406 is additionally provided with thrust ball bearing 408.
In the present embodiment, position sensor uses hall position sensor, as shown in Fig. 4,419 He of Hall sensor
420 are fixed on stator seat.There are four excitation pole shoe unit, the excitations of two excitation pole shoe units of vertical direction altogether for the present embodiment
Coil 420,423 is connected in series or in parallel, and the magnet exciting coil 421,424 of two excitation pole shoe units of horizontal direction is connected in series or simultaneously
Connection, the A phase line by excitation control power supply are that magnet exciting coil 420 and 423 provides exciting current, by the B phase line of excitation control power supply
Exciting current is provided for magnet exciting coil 421 and 424.Two hall position sensors 419 and 422 on stator seat are arranged same
On the circumference in a center of circle, two formed center of circle angle of Hall sensor are 120 degree, and Hall sensor circumference is arranged
The diameter of line is slightly less than the internal diameter of the constituted annulus of arc-shaped permanent magnet.
When the wide circle of the arc-shaped permanent magnet VI 418 of arc-shaped surface face of the motivated iron core pole shoe 425 of magnet exciting coil 420
When arcwall face, this moment the arc-shaped surface of the motivated iron core pole shoe 426 of magnet exciting coil 420 also the arc-shaped permanent magnet I 413 of face etc.
Wide arc-shaped surface (referring to attached drawing 3), this moment, the arc-shaped surface face of the motivated iron core pole shoe 427 of magnet exciting coil 423 are arc-shaped forever
The wide arc-shaped surface of magnet III 415, the arc-shaped permanent magnet of arcwall face face of the motivated iron core pole shoe 428 of magnet exciting coil 423
IV 416 wide arc-shaped surface, at the same time, hall position sensor 419 are sitting at arc-shaped permanent magnet VI 418 and arc-shaped
At gap between the ladder-like section of permanent magnet I 413, hall position sensor 419 can experience magnetic polarity when " gap " is passed through
Variation, and export electric signal and give excitation control power supply, excitation control power supply is made to change the side of exciting current in A phase line immediately
To.When rotor clockwise rotates 60 degree, the arc-shaped surface of 421 two pole shoes of motivated iron core of magnet exciting coil distinguishes face circular arc
The wide arc-shaped surface of shape permanent magnet I 413 and arc-shaped permanent magnet II 414, this moment 424 two poles of motivated iron core of magnet exciting coil
The wide arc-shaped surface of arc-shaped surface difference the face arc-shaped permanent magnet IV 416 and arc-shaped permanent magnet V 417 of boots, it is same with this
When, hall position sensor 422 is sitting between arc-shaped permanent magnet I 413 and the ladder-like section of arc-shaped permanent magnet II 414
At gap, hall position sensor 422 can experience the variation of magnetic polarity when " gap " is passed through, and export electric signal and give excitation control
Power supply processed makes excitation control power supply change the direction of exciting current in B phase line immediately.In this way, 419 He of hall position sensor
422 alternately export electric signal to excitation control power supply, and excitation controls the exciting current side of power supply alternate change A phase line and B phase line
To.
Embodiment two, the present embodiment and the structure of embodiment one are substantially similar, and the main distinction is in excitation pole shoe unit
It is embedded in permanent magnet in iron core, constitutes a kind of compound rectifier excitation pole shoe unit that magnetic flux and permanent magnet flux can be superimposed.
The present embodiment stator seat, four compound rectifier excitation pole shoe units, positional relationship and knot between six arc-shaped permanent magnets
Structure is as shown in Fig. 11.
The present embodiment stator seat, four compound rectifier excitation pole shoe units, six arc-shaped permanent magnets and magnetic conduction steel loop, position pass
Positional relationship structure is as shown in Fig. 12 between sensor.
In the present embodiment, the compound rectifier excitation pole shoe unit is by an iron core, two magnet exciting coils and two permanent magnet structures
At the core configuration structure is as shown in Fig. 13, and for iron core tool there are two arc-shaped pole shoe 468, which is symmetrically arranged with two
A inverted " t " word notch, two notch horizontal spaces 469 distinguish two magnet exciting coils of coiling, and two notch longitudinal spaces 470 are distinguished
It is embedded in two permanent magnets.
If permanent magnet is not arranged in the present embodiment compound rectifier excitation pole shoe unit iron core longitudinal space, as shown in Fig. 14, when
The input stimulus electric current of magnet exciting coil 471 and 472, two pole shoes of iron core only form most short close with permanent magnet on rotor and magnetic conduction steel loop
Close magnetic flux circuit.The magnetic flux is ΦEncourage I473 and ΦEncourage II474 superposition.
If being provided with permanent magnet I 475 and permanent magnet II in the present embodiment compound rectifier excitation pole shoe unit iron core longitudinal space
476。
As shown in Fig. 15, when the non-input stimulus electric current of magnet exciting coil 471 and 472, permanent magnet I 475 is in core interior shape
At the static permanent magnet flux magnetic line of force 477 counterclockwise, permanent magnet II 476 forms static permanent magnet flux magnetic force clockwise in core interior
Line 478.
As shown in Fig. 16, when inputting positive incentive electric current to magnet exciting coil 471,472, on two pole shoes and rotor forever
The compound rectifier excitation flux circuit of most short closure can be formed between magnet and magnetic conduction steel loop.The compound rectifier excitation magnetic flux is by ΦEncourage I479 Hes
ΦEncourage II480 and ΦForever I481 superpositions are formed.And it is located at the still shape in the core of the permanent magnet flux magnetic line of force 482 of right side permanent magnet II
At.
As shown in Fig. 17, when inputting reverse energization electric current to magnet exciting coil 471,472, on two pole shoes and rotor forever
The compound rectifier excitation flux circuit of most short closure can be formed between magnet and magnetic conduction steel loop.The compound rectifier excitation magnetic flux is by ΦEncourage I483 Hes
ΦEncourage II484 and ΦForever 2485 superpositions are formed.And it is located at the still shape in the core of the permanent magnet flux magnetic line of force 486 of left side permanent magnet I
At.
The present embodiment complete machine structure section is as shown in Fig. 18.
The present embodiment operating and control are as in the first embodiment, not repeated description herein.
The present embodiment passes through the application of compound rectifier excitation pole shoe unit, further increases the rotation torque of motor, saves
Power consumption, improves motor service efficiency.
Claims (8)
1. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane, composition includes stator, outer rotor, position sensor
Power supply is controlled with excitation, it is characterised in that: the outer rotor is made of rotator seat ontology, armature spindle, magnetic conduction steel loop and permanent magnet,
Magnetic conduction steel loop is mounted in the outer edge of rotator seat ontology, and to form flange, the arc-shaped permanent magnet of even number is tightly attached to rotator seat and is turned over
On the inner wall on side, each arc-shaped permanent magnet intermediate section is the wide section of circular arc, and the left and right ends of arc-shaped permanent magnet are width
Spend the ladder section that gradually narrows, the ladder section of the arc-shaped permanent magnet of even number is staggeredly harmonious from beginning to end each other, but do not contact and
There are gap, the magnetic polarity of the arc-shaped permanent magnet of even number direction is radial, and the magnetic pole of two neighboring arc-shaped permanent magnet
Property it is different, the stator is made of stator seat and even number excitation pole shoe unit, the excitation pole shoe unit by an iron core with
One magnet exciting coil is constituted, and there are two arc-shaped pole shoes for iron core tool, and even number excitation pole shoe unit is using rotation axis as symmetry axis
Stator seat is fixed on, on facade at the arc-shaped pole shoe of even number excitation pole shoe unit and outer rotor magnetic conduction steel loop inner wall
Even number arc-shaped permanent magnet rotation be formed by facade coincidence, the wide section radial center of the arc-shaped permanent magnet of any two
Center of circle angle is equal between center of circle angle and the radial centre lines of each arc-shaped pole shoe of excitation pole shoe unit between line, armature spindle
It is fixed at one end and rotator seat center, the armature spindle other end passes through stator seat centre bore, and is in by ball bearing and stator seat
It is rotatably connected, radial positioning ball bearing is provided in the middle part of this outer rotor shaft, the end of armature spindle is additionally provided with thrust ball
Bearing.
2. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 1, it is characterised in that: described
Outer rotor magnetic conduction steel loop inner wall setting arc-shaped permanent magnet quantity be 6 or 8 or 10 or 12 or 14 or 16 or
It 18, is corresponded with the arc-shaped permanent magnet quantity of above-mentioned outer rotor magnetic conduction steel loop inner wall setting, excitation pole shoe on stator seat
The quantity of unit is respectively 4 or 6 or 8 or 10 or 12 or 14 or 16.
3. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 1 or 2, it is characterised in that:
The stator is made of stator seat and excitation pole shoe unit, and there are two arc-shaped pole shoe iron by a tool for the excitation pole shoe unit
Core and a magnet exciting coil are constituted, and stator seat is X-shaped bracket, and four excitation pole shoe units are arranged and are fixed on X-shaped bracket
Four vacancies, the outer edge lines of eight iron core pole shoes of four excitation pole shoe units is concentric circles, the excitation pole shoe list
Central angle corresponding to the pole shoe cambered surface of the arc-shaped pole shoe iron core of member is 24 degree, two poles of the same excitation pole shoe unit
Central angle corresponding to the radial centre lines of boots is 60 jiaos；The outer rotor is made of rotator seat, armature spindle and permanent magnet, magnetic conduction
Steel loop is installed on the outer edge of rotator seat ontology, and to form flange, six arc-shaped permanent magnets are tightly attached to rotator seat flange
On inner wall, each arc-shaped permanent magnet intermediate section is the wide section of circular arc, the left and right ends of arc-shaped permanent magnet be width by
The ladder section to narrow is walked, central angle corresponding to the wide section of circular arc is 25 degree to 35 degree, left and right ends ladder
Central angle corresponding to section is 25 degree to 35 degree, and the ladder section of this six arc-shaped permanent magnets is handed over from beginning to end each other
Misphase closes, but does not contact and there are gap, and the magnetic polarity direction of this six arc-shaped permanent magnets is radial, and two neighboring circle
The magnetic polarity of arc-shaped permanent magnet is different, fixes at armature spindle one end and rotator seat center, and the armature spindle other end passes through stator seat " X "
Shape carriage center hole, and be in be rotatably connected with stator seat by ball bearing, it is radial fixed to be provided in the middle part of this outer rotor shaft
Position ball bearing, the end of armature spindle is additionally provided with thrust ball bearing.
4. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 3, it is characterised in that: rotor
Be provided with air-cooled blade on seat ontology, cover board is then tightly attached to rotator seat ontology from axial, between cover board and rotator seat ontology there are
Air duct.
5. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 3, it is characterised in that: described
Central angle corresponding to the wide section in the centre of arc-shaped permanent magnet is 30 degree, and the left and right ends section of arc-shaped permanent magnet is
Central angle corresponding to the ladder section that width gradually narrows is 30 degree.
6. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 3, it is characterised in that: described
Central angle corresponding to the pole shoe cambered surface of the arc-shaped pole shoe iron core of excitation pole shoe unit is 20 degree, the same excitation pole shoe unit
Two pole shoes radial centre lines corresponding to central angle be 60 degree.
7. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 3, it is characterised in that: described
Position sensor is using Hall sensor and is fixed on stator seat, several Hall sensors are arranged in motor axis as circle
The heart is formed by circumference, and the circumference linear diameter of position sensor is slightly less than arc-shaped permanent magnet on rotor and constitutes forever
The internal diameter of magnet annulus, specific setting position of the position sensor on circumference will meet the following conditions, i.e., rotate in rotor
In the process, when some excitation pole shoe in the radial centre lines of the wide section of the arc-shaped permanent magnet of some in permanent magnet circle ring and stator
When the radial centre lines of unit pole shoe are overlapped, some set position sensor faces some axial slit of permanent magnet circle ring
Gap, when permanent magnet circle ring axial slits pass through the position sensor, the position sensor can detect it is two neighboring it is arc-shaped forever
The magnetic polarities of magnet ladder section axial slits changes, and exports electric signal to excitation control power supply, makes to be input to the excitation convex
Extremely exciting current direction in magnet exciting coil is changed.
8. a kind of permanent-magnetic switching reluctance motor for being exclusively used in unmanned plane according to claim 1, it is characterised in that: described
Excitation pole shoe unit is made of an iron core, two magnet exciting coils and two permanent magnets, which has there are two arc-shaped pole shoe,
The iron core is symmetrical arranged there are two inverted " t " word notch, and two notch horizontal spaces distinguish two magnet exciting coils of coiling, two notches
Vertical direction spatial is respectively embedded into two permanent magnets.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026347.1U CN209375421U (en) | 2019-01-08 | 2019-01-08 | A kind of permanent-magnetic switching reluctance motor being exclusively used in unmanned plane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026347.1U CN209375421U (en) | 2019-01-08 | 2019-01-08 | A kind of permanent-magnetic switching reluctance motor being exclusively used in unmanned plane |
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| Publication Number | Publication Date |
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| CN209375421U true CN209375421U (en) | 2019-09-10 |
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| CN201920026347.1U Expired - Fee Related CN209375421U (en) | 2019-01-08 | 2019-01-08 | A kind of permanent-magnetic switching reluctance motor being exclusively used in unmanned plane |
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| Country | Link |
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- 2019-01-08 CN CN201920026347.1U patent/CN209375421U/en not_active Expired - Fee Related
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Granted publication date: 20190910 |