CN209375418U - A kind of high-speed permanent magnetic switched reluctance motor - Google Patents
A kind of high-speed permanent magnetic switched reluctance motor Download PDFInfo
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- CN209375418U CN209375418U CN201920026839.0U CN201920026839U CN209375418U CN 209375418 U CN209375418 U CN 209375418U CN 201920026839 U CN201920026839 U CN 201920026839U CN 209375418 U CN209375418 U CN 209375418U
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- 230000005284 excitation Effects 0.000 claims abstract description 112
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- 230000002146 bilateral effect Effects 0.000 claims description 4
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- 230000005611 electricity Effects 0.000 claims description 3
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- 230000004907 flux Effects 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
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- 230000001413 cellular effect Effects 0.000 description 2
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- 238000003475 lamination Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a kind of high-speed permanent magnetic switched reluctance motors, its main feature is that, outer rotor bracket cantilever inner radial surface is fixed with magnetic conduction steel loop, arc-shaped permanent magnet there are two being fixed again in magnetic conduction steel loop inner radial surface, the arc-shaped permanent magnet intermediate section is wide circular arc section, the left and right ends section of arc-shaped permanent magnet is the ladder section that width gradually narrows, the ladder section of the two permanent magnets is staggeredly harmonious from beginning to end each other, but it does not contact, there are gaps, the magnetic polarity of two permanent magnets is oriented to radial direction, and the magnetic polarity of two permanent magnets is not identical, stator seat is fixed, and there are two excitation pole shoe units, two arc surface shape pole shoes of each unit are opposite with two arc-shaped permanent magnets fixed in rotator seat cantilever and there is air gap between each other.The utility model excitation pole shoe unit is asymmetric and compound rectifier excitation structure, can improve motor speed；Double cantilever rotor brackets and, make electric motor starting smooth running；Wind-cooling heat dissipating improves the environmental suitability of motor.
Description
Technical field
The utility model relates to a kind of permanent-magnetic switching reluctance motor, in particular a kind of high-speed permanent magnetic switched reluctance electric
Machine.
Background technique
Revolving speed, the torque of motor are the main performance index of motor, are still able to maintain under high speed conditions biggish
Driving torque, the always important topic of motor researching and designing.For switched reluctance motor, the promotion of motor speed is on the one hand
It is on the other hand also related to the design feature of motor itself depending on the switch conversion frequency of electric machine controller.
Summary of the invention
The purpose of the utility model is to provide a kind of high-speed permanent magnetic switched reluctance motors.
For achieving the above object, the technical solution of the utility model is a kind of high-speed permanent magnetic switched reluctance motor,
It includes motor base, motor housing, outer rotor, stator, position sensor, excitation control power supply, feature that it, which is constituted,
Be: the outer rotor is made of rotation axis, rotor field spider and permanent magnet, in the fixed magnetic conduction of rotor field spider cantilever inner radial surface
Steel loop, then it is fixed there are two arc-shaped permanent magnet in magnetic conduction steel loop inner radial surface, which is etc.
Wide circular arc section, the left and right ends section of arc-shaped permanent magnet are the ladder section that width gradually narrows, the two permanent magnets
Ladder section is staggeredly harmonious but does not contact from beginning to end each other, there are the magnetic polarities in gap, two permanent magnets to be oriented to radial and two
The magnetic polarity of a permanent magnet is not identical, and the stator is made of stator seat and two excitation pole shoe units, and two structures are identical
Excitation pole shoe unit is symmetrically arranged and is fixed in stator seat, the excitation pole shoe unit by two arc-shaped pole shoe iron cores and
Magnet exciting coil is constituted, and two pole shoes of arc-shaped pole shoe iron core are in arc surface shape, and two arc surface shape pole shoes and rotator seat are outstanding
Two fixed arc-shaped permanent magnets are opposite in arm and there is air gap between each other.
In above-mentioned technical proposal, the rotor field spider is bilateral cantilever design, and cantilever is radial at left and right sides of rotor field spider
Inner surface fixes magnetic conduction steel loop respectively, then there are two arc-shaped permanent magnet, the circles in the fixation of two sides magnetic conduction steel loop inner radial surface
Arc-shaped permanent magnet intermediate section is wide circular arc section, and the left and right ends section of arc-shaped permanent magnet is the rank that width gradually narrows
Terraced section, the ladder section of the two permanent magnets is staggeredly harmonious from beginning to end each other, but does not contact, and there are gap, the two permanent magnetism
The magnetic polarity direction of body is radial, and the magnetic polarity of the two permanent magnets is not identical, two fixed on the left of rotor field spider cantilever
The central point line of the wide section of the circular arc of a permanent magnet in vertical direction, and two permanent magnets fixed on the right side of pole bracket
In horizontal direction, the left end of the rotation axis is fixed with heat-dissipating impeller, the rotor branch to the central point line of the wide section of circular arc
Frame right end is also fixed with heat-dissipating impeller；The stator is made of stator seat and excitation pole shoe unit, and the stator seat is divided into left side
There are two the identical excitation pole shoe lists of structure for each fixation in stator seat and right side stator seat, left side stator seat and right side stator seat
Member, and two excitation pole shoe unit settings symmetrical above and below, the excitation pole shoe unit is by two arc-shaped pole shoe iron cores and excitation
Coil is constituted, and two pole shoes of arc-shaped pole shoe iron core are in arc surface shape, and magnet exciting coil is fixed on the two of arc-shaped pole shoe iron core
Between a arc-shaped pole shoe, and upper and lower two magnet exciting coils are to be arranged in parallel, when upper and lower magnet exciting coil is passed through electric current simultaneously, on
The ipsilateral generation same magnetic polarity of lower magnet exciting coil, so as to form a stator excitation pole shoe, left side stator seat and motor
End cap is fixed on the left of housing, and bearing is provided between left side stator seat and rotation axis, and makes the circle of left side excitation pole shoe unit
Arc pole shoe cambered surface is opposite with two fixed arc-shaped permanent magnets of cantilever on the left of rotator seat and there is air gap between each other, together
Sample, right side stator seat are fixed with motor housing right-hand end lid, bearing are provided between right side stator seat and rotation axis, and make
The arc-shaped pole shoe cambered surface of he of right side excitation pole shoe unit is opposite with two fixed arc-shaped permanent magnets of cantilever on the right side of rotator seat
And there is air gap between each other.
In above-mentioned technical proposal, the excitation pole shoe unit is by two arc-shaped pole shoe iron cores, magnet exciting coil and permanent magnet
It constitutes, two pole shoes of arc-shaped pole shoe iron core are in arc surface shape, which is symmetrical arranged there are two " T " word notch, and two lack
Mouth horizontal space distinguishes two magnet exciting coils of coiling, and two notch vertical direction spatials are respectively embedded into two permanent magnets, left side stator seat
The permanent magnet magnetic polarity of the setting excitation pole shoe unit symmetrical above and below of two of interior fixation is opposite, i.e. top excitation pole shoe unit permanent magnetism
The pole N of body is directed toward counterclockwise, and the pole N of lower section field pole whip unit permanent magnet is directed toward clockwise, and right side stator seat
The permanent magnet magnetic polarity of the setting excitation pole shoe unit symmetrical above and below of two of interior fixation is also opposite, but with left side excitation pole shoe list
First permanent magnet magnetic polarity is on the contrary, clockwise direction, lower section field pole whip list are directed toward in the pole N of i.e. top excitation pole shoe unit permanent magnet
It is directed toward counterclockwise the pole N of first permanent magnet.
In above-mentioned technical proposal, the left end of the rotation axis is fixed with heat-dissipating impeller, and the rotor field spider right end is also fixed
There is heat-dissipating impeller.
In above-mentioned technical proposal, the magnet exciting coil of two excitation pole shoe units of the stator side uses the same winding
Coiling distinguishes coiling using two windings.
In above-mentioned technical proposal, the position sensor is two Hall sensors, and two Hall sensors are fixed respectively
In on the stator seat of two sides, when arc-shaped permanent magnet etc. in the radial centre lines of certain side stator excitation pole shoe unit pole shoe and rotor
The radial centre lines of wide section are overlapped, and the Hall sensor of the side then two arc-shaped permanent magnet stairstepping portions of face are arranged in
/ some axial slits, when between the arc-shaped permanent magnet stairstepping part of the side two axial slits by should
Hall sensor, the Hall sensor export electric signal to excitation control power supply, so that excitation control power supply is changed the side two and encourage
The direction of exciting current in magnetic pole piece unit magnet exciting coil.
In above-mentioned technical proposal, the stairstepping part of two arc-shaped permanent magnets coincide relatively but does not connect on the rotor
Touching, and there are 1 to 5 millimeter of gaps.
In above-mentioned technical proposal, the arc-shaped pole shoe iron core of two of described two excitation pole shoe units is not exactly the same,
In the total arc length institute of an arc-shaped pole shoe iron core be 181 degree to 184 degree to central angle, and another arc-shaped total arc of pole shoe iron core
Long institute is then 179 degree to 176 degree to central angle.
The utility model has the advantages that 1. structures are extremely simple, when using the higher excitation power supply of switching frequency, can be promoted
Revolving speed.2. pair cantilever rotor bracket and two sides excitation pole shoe cellular construction design, electric motor starting is efficiently solved the problems, such as, reduce
Requirement to exciting current.3. the unsymmetric structure design of two unilateral excitation pole shoe units, is keeping motor axial direction ruler
It is very little it is small under the premise of, dexterously solve the problems, such as electric motor starting.4. the utility model passes through the application of compound rectifier excitation pole shoe unit, into
One step increases the rotation torque of motor, saves power consumption, improves motor service efficiency.5. using air-cooled dissipate
Thermal structures design improves the environmental suitability of motor.
Detailed description of the invention
Fig. 1 is the utility model embodiment one, bilateral driving switch reluctance motor structure sectional view.
Fig. 2 is the structural schematic diagram of left side stator seat and excitation pole shoe unit in the utility model embodiment one.
Fig. 3 is the A-A sectional view of left side stator seat and excitation pole shoe unit in the utility model embodiment one.
Fig. 4 is left and right sides permanent magnetism on left and right sides excitation pole shoe unit and rotator seat in the utility model embodiment one
Assembly relation schematic diagram between body.
Fig. 5 is in the utility model embodiment one, and schematic diagram is arranged in hall position sensor.
Fig. 6 is the construction profile schematic diagram of laminated core in excitation pole shoe unit in the utility model embodiment one.
Fig. 7 is the arc-shaped permanent magnet appearance schematic diagram of three ranks in the utility model embodiment one.
Fig. 8 is motor base and shape of hood schematic diagram in the utility model embodiment one.
Fig. 9 is the utility model embodiment two, unilateral driving switch reluctance motor structure sectional view.
Figure 10 is two excitation pole shoe unit biasing line schematic diagrames in the utility model embodiment two.
Figure 11 is that the arc-shaped pole shoe core structure that arc length central angle is 183 degree is illustrated in the utility model embodiment two
Figure.
Figure 12 is that the arc-shaped pole shoe core structure that arc length central angle is 177 degree is illustrated in the utility model embodiment two
Figure.
Figure 13 is the arc-shaped permanent magnet appearance schematic diagram of second order in the utility model embodiment two.
Figure 14 is the structural profile illustration of the utility model embodiment three.
Figure 15 is upper and lower compound rectifier excitation pole shoe unit and the arc-shaped magnet structure of rotor in the utility model embodiment three
Schematic diagram.
Figure 16 is left and right sides compound rectifier excitation pole shoe unit and arc-shaped magnet structure in the utility model embodiment three
Schematic diagram.
Figure 17 is in the utility model embodiment three, and the compound rectifier excitation up and down in left side encourages pole whip unit magnetic coil without excitation electricity
The static-magnetic circuit diagram that stream input, upper permanent magnet and lower permanent magnet are formed.
Figure 18 is in the utility model embodiment three, and the compound rectifier excitation up and down on right side encourages pole whip unit magnetic coil without excitation electricity
The static-magnetic circuit diagram that stream input, upper permanent magnet and lower permanent magnet are formed.
Figure 19 is in the utility model embodiment three, and it is positive that the compound rectifier excitation up and down in left side encourages the input of pole whip unit magnetic coil
Exciting current, the compound rectifier excitation magnetic loop schematic diagram that pole shoe is formed by arc-shaped permanent magnet and magnetic conduction steel loop.
Figure 20 is in the utility model embodiment three, and it is positive that the compound rectifier excitation up and down on right side encourages the input of pole whip unit magnetic coil
Exciting current, the compound rectifier excitation magnetic loop schematic diagram that pole shoe is formed by arc-shaped permanent magnet and magnetic conduction steel loop.
In the figures above, 301 be power output shaft, and 302 be electric motor end cap, and 303 be heat-dissipating impeller, and 304 be left side stator
Seat, 305 be top laminated core, and 306 be top magnet exciting coil, and 307 be motor housing, and 308 be magnetic conduction steel loop, and 309 be circular arc
Shape permanent magnet I, 310 be rotator seat, and 311 be arc-shaped permanent magnet III, and 312 be arc-shaped permanent magnet IV, and 313 be arc-shaped permanent magnetism
Body permanent magnet II, 314 be bearing, and 315 be lower section laminated core, and 316 be lower section magnet exciting coil, and 320 be left side lower section lamination iron
Core, 321 be the arc-shaped permanent magnet permanent magnet II (left side) of three ranks, and 322 be left side stator seat, and 323 be the arc-shaped permanent magnet I of three ranks
(left side), 324 be left side top laminated core, and 325 be magnet exciting coil, and 326 be the arc-shaped permanent magnet IV (right side) of three ranks, 327
It is magnet exciting coil, 328 be right side top laminated core, and 329 be right side stator seat, and 330 be lower right-hand side laminated core, and 331 are
Magnet exciting coil, 332 be the arc-shaped permanent magnet III (right side) of three ranks, and 333 be hall position sensor, and 340 be the arc of laminated core
Shape pole shoe, 341 be the notch for installing magnet exciting coil, and 342 be fixed laminated core screw hole, and 343 be laminated core locating slot,
344 be the ladder section of the arc-shaped permanent magnet of three ranks, and 345 be the wide section of the arc-shaped permanent magnet of three ranks, and 346 be that three ranks are arc-shaped
The ladder section of permanent magnet, 347 be motor housing, and 348 be motor base；351 be power output shaft, and 352 be heat-dissipating impeller,
353 be electric motor end cap, and 354 be stator seat, and 355 be the arc-shaped pole shoe iron core in top, and 356 be top magnet exciting coil, and 357 be motor
Housing, 358 be magnetic conduction steel loop, and 359 be arc-shaped permanent magnet I, and 360 be rotator seat, and 361 be bearing, and 362 be arc-shaped permanent magnet
II, 363 be the arc-shaped pole shoe iron core in lower section, and 364 be lower section magnet exciting coil, and 365 be arc-shaped permanent magnet I, 366 be it is arc-shaped forever
Magnet II, 367 be the arc-shaped pole shoe iron core in top, and 368 be the arc-shaped pole shoe iron core in lower section, and 369 be between arc-shaped permanent magnet
Gap, 370 be the gap between arc-shaped permanent magnet, and 371 be the gap between arc-shaped permanent magnet, 372 be it is arc-shaped forever
Gap between magnet, 373 be the arc-shaped pole shoe iron core offset line in top, and 374 be the arc-shaped pole shoe iron core in top, 375 be on
Have an area of arc pole shoe iron core and bias central angle, 376 be the arc-shaped pole shoe iron core in lower section, and 377 be that the arc-shaped pole shoe iron core in lower section is inclined
Central angle is set, 378 be the ladder section of the arc-shaped permanent magnet of second order, and 379 be the wide section of the arc-shaped permanent magnet of second order, and 380 are
The ladder section of the arc-shaped permanent magnet of second order, 381 be permanent magnet, and 382 be magnet exciting coil, and 383 be pole shoe iron core, and 384 be fixed
Stroma, 385 be magnetic conduction steel loop, and 386 be arc-shaped permanent magnet, and 387 be rotor field spider, and 388 be two arc-shaped permanent magnetism of three ranks
Gap between body, 389 be position sensor, and 390 be two arc-shaped permanent magnets of three ranks fixed on the left of rotor field spider cantilever
The wide section of circular arc central point line (vertical), 391 be two three rank circular arcs fixed on the right side of rotor field spider pole bracket
The central point line (level) of the wide section of the circular arc of shape permanent magnet, 392 be the static permanent-magnet magnetic line of force, and 393 be static permanent-magnet magnetic
The line of force.394 be arc-shaped pole shoe, and 395 be magnet exciting coil, and 396 be the horizontal space of " T " word notch, and 397 be permanent magnet.
Specific embodiment
Embodiment one, the present embodiment are that a kind of bilateral drives high-speed switched reluctance motor, and structure is as shown in Fig. 1.
In the present embodiment, rotator seat 310 is cantilevered support structure, is made of aluminum alloy materials, in pole bracket or so
The inner radial surface of two sides cantilever is respectively fixed with magnetic conduction steel loop 308, then in 308 inner radial surface of magnetic conduction steel loop it is fixed there are two
The identical permanent magnet 309 and 313 of size shape and 311 and 312.The shape of permanent magnet 309 and permanent magnet 313 be it is arc-shaped,
" the ladder section " of the two permanent magnets is coincide opposite each other but is not contacted, and the magnetic polarity of permanent magnet 309 and permanent magnet 313 is directed toward
It is all radial, and permanent magnet 309 is not then identical as the magnetic polarity direction of permanent magnet 313, if permanent magnet 309 is directed toward electrical axis
The magnetic polarity in direction is the pole N, and permanent magnet 313 is directed toward the magnetic polarity in electrical axis direction as the pole S, and permanent magnet 309 and permanent magnetism
The line of the center point of " the wide section " of body 313 is in vertical direction (such as the vertical direction chain-dotted line institute in 4 left side of attached drawing
Show).The shape of the permanent magnet 311 and permanent magnet 312 that are fixed on the right side of rotator seat is also the arc-shaped, " rank of the two permanent magnets
Terraced section " is coincide relatively each other, but is not contacted, and the magnetic polarity direction of permanent magnet 311 and permanent magnet 312 is all radial, and forever
Magnet 311 is not then identical as the magnetic polarity direction of permanent magnet 312, if the magnetic polarity that permanent magnet 311 is directed toward electrical axis direction is N
Pole, permanent magnet 312 are directed toward the magnetic polarity in electrical axis direction for the pole S, in permanent magnet 311 and permanent magnet 312 " wide section "
The line of heart location point is arranged in horizontal direction (as shown in the horizontal direction chain-dotted line on 4 right side of attached drawing).
In the present embodiment, stator is divided into left side stator and right side stator, the structure of left and right sides stator are identical.It is existing
By taking the stator of left side as an example, its design feature is described, referring to attached drawing 2 and attached drawing 3, left side stator is by a stator seat 304 and two
The identical excitation pole shoe unit of structure is constituted, and top excitation pole shoe unit is made of magnet exciting coil 305 and laminated core 306 again,
Lower section excitation pole shoe unit is made of laminated core 315 and magnet exciting coil 316, and upper and lower excitation pole shoe unit is symmetrical with horizontal line
Axis is fixedly connected by screw with stator seat 304.
Attached drawing 4 gives the arc-shaped permanent magnet in the left and right sides on left and right sides excitation pole shoe unit and rotator seat pole bracket
Between rigging position schematic diagram.As can be seen that the excitation pole shoe unit of the left and right sides is identical in attached drawing 4, but it is left
The wide section central point of the arc-shaped permanent magnet 321 and 323 of two of side is (vertical in such as attached drawing 4 on same vertical line
Shown in chain-dotted line), and the wide section central point of two of right side arc-shaped permanent magnets 326 and 332 is in same horizontal line
Upper (as shown in the dash-dotted horizontal line in attached drawing 4), is configured so that, guarantees that motor under input stimulus current conditions normally transport by starting
Turn.
Attached drawing 5 gives the installation site of the hall position sensor of right part in Fig. 4, hall position sensor 333
Arc-shaped permanent magnet 332 and 326 is positioned close to coincide near the intermediate air gap of opposite section.When rotor rotation, it is fixed on and turns
The intermediate gap of the identical opposite section of permanent magnet 332 and permanent magnet 326 on the right side of sub- pole bracket passes through hall position sensor
When 333, position as shown in Fig. 5, hall position sensor 333 can export electric signal to excitation control power supply, excitation control
Power supply changes the direction of exciting current in magnet exciting coil 327 immediately, so that the magnetic polarity of iron core pole shoe 328 is also changed, pole shoe
328 and pole shoe 330 magnetic attraction no longer is formed to permanent magnet 332 and permanent magnet 326, instead because of the magnetic of pole shoe 328 and pole shoe 330
Polarity is identical as the magnetic polarity of pole shoe permanent magnet is located at and produces repulsive force.And this moment, referring to attached drawing 4, it is fixed on rotor
The attraction of permanent magnet 321 and permanent magnet 323 just by left side iron core pole shoe 320 and iron core pole shoe 324 on the left of pole bracket, and shape
At turning moment.Until the intermediate gap of permanent magnet 321 and the identical opposite section of permanent magnet 323 is by being set to left side stator seat
When upper hall position sensor, which can also export electric signal to excitation control power supply, excitation control power supply
The direction for changing exciting current in magnet exciting coil 325 immediately, makes the magnetic polarity of iron core pole shoe 320 and 324 also change, pole shoe
320 and 324 no longer form magnetic attraction to permanent magnet 321 and permanent magnet 324, also can be because of the magnetic polarity of pole shoe 320 and pole shoe 324
The magnetic polarity of pole shoe permanent magnet is identical and produce repulsive force with being located at.In this way, motor right part magnet exciting coil and a left side
The direction of the magnet exciting coil alternate change exciting current of side section, the pole shoe unit of right part and the pole shoe unit of left part
Also attraction and repulsive force alternately are generated to the permanent magnet being fixed on rotor, the motor is made to be kept in continuous operation.
In the present embodiment, two pole shoes 340 of laminated core are arc-shaped, and referring to attached drawing 6, magnet exciting coil is fixed on lamination
In notch 341 between two arc-shaped pole shoes of iron core, laminated core pole shoe axial width is with arc-shaped permanent magnet (referring to attached
Fig. 7) axial dimension of wide section 345 is identical, to obtain maximum magnetic force.
In the present embodiment, as shown in Fig. 1, after left side stator seat assembles upper and lower two excitations pole shoe unit, with attached drawing
It is fixed on the left of motor casing 347 shown in 8, bearing 314 is provided between left side stator seat and rotation axis, and make left side
The arc-shaped pole shoe of upper and lower excitation pole shoe unit laminated core is opposite with permanent magnet fixed on the left of rotator seat pole bracket, and
There are air gaps between each other, equally, after right side stator seat assembles upper and lower two excitations pole shoe unit, then with motor casing 347
Right side is fixed, and setting is also equipped with bearing between right side stator seat and rotation axis, and keeps the upper and lower excitation pole shoe unit in right side folded
The arc pole shoe of piece iron core is opposite with permanent magnet fixed on the right side of rotator seat pole bracket and there is air gap between each other.
Embodiment two, the present embodiment structure are as shown in Fig. 9.
In the present embodiment, rotor field spider 360 is single-cantilever, in the fixed magnetic conduction steel loop 358 of the cantilever inner radial surface, then
358 inner radial surface of magnetic conduction steel loop is fixed, and there are two arc-shaped permanent magnet 359 and 362, rotor field spider 360 and 351 axis of line shaft
It fixes to docking, and is supported by bearing 361.The excitation pole shoe of top is made of arc-shaped pole shoe iron core 355 and magnet exciting coil 356
Unit is made of the excitation pole shoe unit of lower section, upper and lower excitation pole shoe unit arc-shaped pole shoe iron core 363 and magnet exciting coil 364
It is embedded into the upper and lower vallecular cavity of stator seat 354 fixed.Magnet exciting coil 356 and magnet exciting coil 364 are parallel connection, by the same excitation
Power supply power supply control.
In the present embodiment, two arc-shaped permanent magnets are the arc-shaped permanent magnet of second order, and shape is as shown in Fig. 13.Top
The shape of the arc-shaped pole shoe iron core of excitation pole shoe unit is as shown in Fig. 11, central angle corresponding to the arc-shaped total arc length of pole shoe iron core
It is 183 degree, the shape of the arc-shaped pole shoe iron core of lower section excitation pole shoe unit is as shown in Fig. 12, the arc-shaped total arc of pole shoe iron core
Long corresponding central angle is 177 degree.Upper and lower arc-shaped pole shoe iron core is fixed by the installation of offset line 373 shown in attached drawing 10.Above and below
The biasing of arc-shaped pole shoe iron core, so that electric motor starting control is extremely simple.Its mechanism is as follows, due to upper and lower arc-shaped pole shoe
The biasing of iron core, when motor does not load excitation power supply, on the two arc-shaped permanent magnets and stator on rotor field spider
Two arc-shaped pole shoe iron cores between form nonequilibrium static permanent magnet circuit, once excitation power supply is loaded into magnet exciting coil,
The pole shoe of two arc-shaped pole shoe iron cores generates excitation magnetic potential, which produces the arc-shaped permanent magnet on rotor field spider
Magnetisation active force, the nonequilibrium condition of static state permanent magnetism magnetic loop when rapidly changing non-loading power, so that rotor field spider is towards one
A fixed-direction rotation.
In the present embodiment, referring to attached drawing 10, the arc-shaped permanent magnet 365 of second order and arc-shaped 366 head and the tail of permanent magnet of second order
Staggeredly it is harmonious, forms four axial slits 369,370,371,372.A Hall sensor face four on stator seat is set
One in a axial slits, at 370 position of gap in attached drawing 10.The hall position sensor sensitively detects two
Change of magnetic field strength when axial slits are passed through between arc-shaped permanent magnet, and electric signal is exported to excitation control power supply, excitation
Control power supply changes the direction of exciting current in magnet exciting coil 356,364 immediately, makes the magnetic polarity of pole shoe iron core 355 and 363
It changes simultaneously.Magnetic action on the excitation magnetic potential and rotor field spider of pole shoe iron core 355 and 363 between arc-shaped permanent magnet
Power, turning moment needed for forming motor operating.Rotor field spider often rotates a circle, and the magnetic pole of pole shoe iron core 355 and 363 sexually revises
Once, so that rotor be made to obtain lasting turning moment.
Embodiment three, the present embodiment complete machine structure section such as attached drawing 14.
The present embodiment and the structure of embodiment one are substantially similar, and the main distinction is the upper excitation pole shoe unit in two sides under
Be embedded in permanent magnet in excitation pole shoe unit iron core, constitute it is a kind of can by magnetic flux and permanent magnet flux superposition output it is compound
Excitation pole shoe unit.
In the present embodiment, compound rectifier excitation pole shoe cellular construction is as shown in Fig. 17, and Figure 17 shows two up and down of left side
Symmetrical compound rectifier excitation pole shoe unit.Compound rectifier excitation pole shoe unit iron core tool in top is there are two arc-shaped pole shoe 394, in the iron core
Centre is provided with " T " word notch, and magnet exciting coil 395 is wound in the horizontal space 396 of " T " word notch, and a permanent magnet 397 is set
It sets at " T " word notch longitudinal space.As shown in Fig. 17, the compound rectifier excitation up and down in left side encourages pole shoe unit magnetic coil without sharp
It encourages under electric current input condition, upper permanent magnet can form clockwise static magnetic loop in iron core, and lower permanent magnet can be in iron core
Form anticlockwise static magnetic loop.And to encourage pole shoe unit magnetic coil defeated in no exciting current for the compound rectifier excitation up and down on right side
In the case of entering, due to set permanent magnet magnetic polarity, as shown in Fig. 18, upper permanent magnet can form side counterclockwise in iron core
To static magnetic loop, lower permanent magnet can form clockwise static magnetic loop in iron core.The compound rectifier excitation above and below left side
When the magnet exciting coil of pole shoe unit inputs positive incentive electric current simultaneously, as shown in Fig. 19, upper and lower pole shoe is by circular arc on rotor
Shape permanent magnet and magnetic conduction steel loop can be formed by magnetic flux ΦIt encouragesWith permanent magnet flux ΦForeverIt is superimposed the compound rectifier excitation magnetic flux formed.And work as
When the magnet exciting coil of compound rectifier excitation pole shoe unit inputs reverse energization electric current simultaneously above and below left side, upper and lower pole shoe is by circle on rotor
Arc-shaped permanent magnet and magnetic conduction steel loop are only capable of forming excitation magnetic loop.Similarly, above and below right side compound rectifier excitation pole shoe unit excitation
When coil inputs reverse energization electric current simultaneously, as shown in Fig. 20, upper and lower pole shoe is by arc-shaped permanent magnet and magnetic conduction on rotor
Steel loop can be formed by magnetic flux ΦIt encouragesWith permanent magnet flux ΦForeverIt is superimposed the compound rectifier excitation magnetic flux formed.The compound rectifier excitation above and below right side
When the magnet exciting coil of pole shoe unit inputs positive incentive electric current simultaneously, upper and lower pole shoe is by arc-shaped permanent magnet and magnetic conduction on rotor
Steel loop is only capable of forming excitation magnetic loop.
In the present embodiment, as shown in Fig. 15, it is respectively set in left side stator seat and right side stator seat position directly above respectively
Set a position sensor 389, when on rotor between two arc-shaped permanent magnets gap 388 by position sensor when
It carves, position sensor output signal controls excitation power supply, changes the direction of exciting current.As shown in Fig. 16, due to rotor branch
The central point line 390 of the wide section of circular arc for the two arc-shaped permanent magnets fixed on the left of frame cantilever in vertical direction, and turns
The central point line 391 of the wide section of circular arc for two permanent magnets fixed on the right side of submounts cantilever is in horizontal direction.In this way, turning
The every rotated ninety degrees of son, the exciting current for just having side magnet exciting coil change direction, every 180 degree of the rotation of rotor, left side
Or right side magnet exciting coil changes the direction of an exciting current, makes the compound rectifier excitation pole shoe of left and right side alternately 108
Ten degree of ranges generate compound rectifier excitation magnetic potential.
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 (7)
1. a kind of high-speed permanent magnetic switched reluctance motor, composition includes motor base, motor housing, outer rotor, determines
Son, position sensor, excitation control power supply, it is characterised in that: the outer rotor is by rotation axis, rotor field spider and permanent magnet structure
At in rotor field spider cantilever inner radial surface fixation magnetic conduction steel loop, then in the fixation of magnetic conduction steel loop inner radial surface, there are two circular arcs
Shape permanent magnet, the arc-shaped permanent magnet intermediate section are wide circular arc section, and the left and right ends section of arc-shaped permanent magnet is width
The ladder section gradually to narrow is spent, the ladder section of the two permanent magnets is staggeredly harmonious but does not contact from beginning to end each other, there are seams
It is not identical that gap, the magnetic polarity of two permanent magnets are oriented to radial and two permanent magnets magnetic polarities, the stator by stator seat and
Two excitation pole shoe units are constituted, and the identical excitation pole shoe unit of two structures is symmetrically arranged and is fixed in stator seat, institute
It states excitation pole shoe unit to be made of two arc-shaped pole shoe iron cores and magnet exciting coil, two pole shoes of arc-shaped pole shoe iron core are in circle
Arc surfaced, and two arc surface shape pole shoes are opposite with two arc-shaped permanent magnets fixed in rotator seat cantilever and deposit between each other
In air gap.
2. high-speed permanent magnetic switched reluctance motor according to claim 1, it is characterised in that: the rotor field spider is bilateral
Cantilever design, cantilever inner radial surface fixes magnetic conduction steel loop respectively at left and right sides of rotor field spider, then in two sides magnetic conduction steel loop diameter
Inner surface is fixed, and there are two arc-shaped permanent magnet, the wide sections of circular arc of two fixed permanent magnets of rotor field spider cantilever left side
Central point line in vertical direction, and the central point of the wide section of circular arc of two permanent magnets fixed on the right side of pole bracket connects
In horizontal direction, the left end of the rotation axis is fixed with heat-dissipating impeller to line, and the rotor field spider right end is also fixed with heat-dissipating impeller；
The stator seat is divided into left side stator seat and right side stator seat, and there are two structures for each fixation in left side stator seat and right side stator seat
Identical excitation pole shoe unit, and two excitation pole shoe unit settings symmetrical above and below, magnet exciting coil are fixed on arc-shaped pole shoe iron
Between two arc-shaped pole shoes of core, and upper and lower two magnet exciting coils are to be arranged in parallel, when upper and lower magnet exciting coil is passed through electricity simultaneously
When stream, the ipsilateral generation same magnetic polarity of upper and lower magnet exciting coil, so as to form a stator excitation pole shoe, left side stator seat with
Motor housing left-hand end lid is fixed, and bearing is provided between left side stator seat and rotation axis, and makes left side excitation pole shoe list
The arc-shaped pole shoe cambered surface of member is opposite with two fixed arc-shaped permanent magnets of cantilever on the left of rotator seat and there is gas between each other
Gap, equally, right side stator seat are fixed with motor housing right-hand end lid, are provided with axis between right side stator seat and rotation axis
Two arc-shaped permanent magnets for holding, and fixing the arc-shaped pole shoe cambered surface of right side excitation pole shoe unit and rotator seat right side cantilever
There is relatively and between each other air gap.
3. a kind of high-speed permanent magnetic switched reluctance motor according to claim 2, it is characterised in that: the excitation pole shoe list
Member is made of two arc-shaped pole shoe iron cores, magnet exciting coil and permanent magnet, and two pole shoes of arc-shaped pole shoe iron core are in arc surface
Shape, the iron core are symmetrical arranged there are two " T " word notch, and two notch horizontal spaces distinguish two magnet exciting coils of coiling, and two lack
Mouth vertical direction spatial is respectively embedded into two permanent magnets, two fixed in the stator seat of left side setting excitation pole shoe units symmetrical above and below
Permanent magnet magnetic polarity is opposite, i.e. the pole N of top excitation pole shoe unit permanent magnet is directed toward counterclockwise, lower section field pole whip unit
The pole N of permanent magnet is directed toward clockwise, and two setting excitation pole shoe units symmetrical above and below fixed in the stator seat of right side
Permanent magnet magnetic polarity is also opposite, but with left side excitation pole shoe unit permanent magnet magnetic polarity on the contrary, being top excitation pole shoe unit
The pole N of permanent magnet is directed toward clockwise, and the pole N of lower section field pole whip unit permanent magnet is directed toward counterclockwise.
4. a kind of high-speed permanent magnetic switched reluctance motor according to claim 2 or 3, it is characterised in that: the stator one
The magnet exciting coil of two excitation pole shoe units of side distinguishes coiling using the same winding technique or using two windings.
5. a kind of high-speed permanent magnetic switched reluctance motor according to claim 2 or 3, it is characterised in that: the position passes
Sensor is two Hall sensors, and two Hall sensors are individually fixed on the stator seat of two sides, when certain side stator excitation pole
The radial centre lines of boots unit pole shoe are overlapped with the radial centre lines of the wide section of permanent magnet arc-shaped on rotor, are arranged in the side
Hall sensor then some axial slits between two arc-shaped permanent magnet stairstepping parts of face, when the side two
Axial slits between arc-shaped permanent magnet stairstepping part pass through the Hall sensor, which exports electric signal
Power supply is controlled to excitation, excitation control power supply is made to change the side of exciting current in the excitation pole shoe unit magnet exciting coil of the side two
To.
6. a kind of high-speed permanent magnetic switched reluctance motor according to claim 1, it is characterised in that: two on the rotor
The stairstepping part of arc-shaped permanent magnet coincide relatively but does not contact, and there are 1 to 5 millimeter of gaps.
7. a kind of high-speed permanent magnetic switched reluctance motor according to claim 1, it is characterised in that: described two field poles
The arc-shaped pole shoe iron core of two of boots unit is not exactly the same, one of them total arc length of arc-shaped pole shoe iron core is to central angle
181 degree to 184 degree, and another total arc length of arc-shaped pole shoe iron core is then 179 degree to 176 degree to central angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026839.0U CN209375418U (en) | 2019-01-08 | 2019-01-08 | A kind of high-speed permanent magnetic switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920026839.0U CN209375418U (en) | 2019-01-08 | 2019-01-08 | A kind of high-speed permanent magnetic switched reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375418U true CN209375418U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920026839.0U Expired - Fee Related CN209375418U (en) | 2019-01-08 | 2019-01-08 | A kind of high-speed permanent magnetic switched reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209375418U (en) |
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2019
- 2019-01-08 CN CN201920026839.0U patent/CN209375418U/en not_active Expired - Fee Related
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Granted publication date: 20190910 |