CN107896032A - It is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor - Google Patents
It is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor Download PDFInfo
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- CN107896032A CN107896032A CN201711423935.0A CN201711423935A CN107896032A CN 107896032 A CN107896032 A CN 107896032A CN 201711423935 A CN201711423935 A CN 201711423935A CN 107896032 A CN107896032 A CN 107896032A
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- 238000004804 winding Methods 0.000 claims abstract description 26
- 230000005611 electricity Effects 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims 2
- 230000001934 delay Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/14—Circuit arrangements for improvement of commutation, e.g. by use of unidirectionally conductive elements
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Dc Machiner (AREA)
Abstract
The invention provides it is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor, including：Stator, rotor and reversing arrangement；Rotor is spindle rotationally arranged in the space that stator surrounds, and reversing arrangement is set between rotor and stator；Electromechanical stator of the mixing without arc commutating dc motor of fixed brush formula be p to permanent magnet pole, rotor is Y-connected m phases armature winding；Air-gap field and electromotive force of the electromechanical mixing of fixed brush formula without arc commutating dc motor are trapezoidal wave, and armature supply is square wave；Reversing arrangement includes electronic section and mechanical part；The mechanical part of reversing arrangement includes brush and commutator.The present invention overcomes the electromechanical mixing of existing fixed brush formula to be unable to way traffic without arc commutating dc motor, and the problems such as dynamic balancing, the maintenance of brush and replacing convenience.
Description
Technical field
The present invention relates to design of electrical motor and manufacturing technology field, more particularly to can way traffic fixed brush formula it is electromechanical
Mixing is without arc commutating dc motor.
Background technology
At present, the brushed DC motor using mechanical commutation and the brshless DC motor using electronic commutation are respectively provided with extensively
Application.Mechanical commutation is almost unavoidable to have spark, and very likely produces electric arc；Although electronic commutator is without fire
Flower, but system cost is added, and control complicated.Therefore, Chinese invention patent CN106685148A and Chinese utility model are special
A kind of sharp CN206294034U " electromechanical multiphase DC square-wave motor of the mixing without arc commutation " proposes a kind of electromechanical mixing commutation
Without arc direct current generator, the motor is using machinery, electronics mixing commutation, it is not necessary to extra controller and Technics of Power Electronic Conversion
Device, and solve electric arc and spark problems in tradition machinery reversing arrangement.On this basis, Chinese invention patent and China are practical
New patent " it is a kind of can way traffic electromechanical mixing without arc commutating dc motor " propose it is a kind of can way traffic electromechanics
Mixing commutation is without arc direct current generator.The motor ensures to continue during the direct current power source voltage polarity inversion of power supply by increasing change-over switch
Current circuit power supply polarity still keeps constant, and only power supply commutator segment polarity inverts, it is achieved thereby that mixing commutating dc motor
Forward and reverse operation.But brush and rotor of the above-mentioned electromechanical mixing without arc commutating dc motor rotate together with, and are deposited after brush wear
In dynamic equilibrium problems, and it is not easy to the maintenance and replacing of brush.Therefore, Chinese invention patent and Chinese utility model patent
" a kind of electromechanical mixing of fixed brush formula is without arc commutating dc motor " proposes a kind of electromechanical mixing of fixed brush formula and commutated without arc
Direct current generator, the brush of the motor are fixed on stator side, and commutator rotates together with rotor.Fixed brush formula mixed DC electricity
Dynamic equilibrium problems are not present in machine, and the maintenance and replacing of brush are convenient.But the brush of the motor is mal-distribution, its afterflow
The distance of brush to positive source brush and power cathode brush is unequal, therefore can only be by the positive operation in direction of design, nothing
Method realizes way traffic.
Therefore, be badly in need of it is a kind of can the electromechanical mixing of fixed brush formula of way traffic overcome or extremely without arc commutating dc motor
Subtract the electromechanical mixing of fixed brush formula less and be unable to way traffic without arc commutating dc motor, and dynamic balancing, the maintenance of brush and more
The problem of changing convenience.
The content of the invention
In order to overcome defect present in prior art, present invention aims at provide it is a kind of can way traffic fixed electricity
Dynamic equilibrium problems, and brush is not present without arc commutating dc motor, fixed brush formula mixed DC motor in brush electromechanical mixing
Maintenance and change it is convenient.In addition, the motor brush is symmetrical, its afterflow brush to positive source brush and power cathode electricity
The distance of brush is equal, therefore can realize way traffic.
To achieve these goals, the invention provides following technical scheme.
A kind of technical scheme is, it is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor, its
Including：Stator, rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds, reversing arrangement
It is arranged between the rotor and the stator；The electromechanical stator of the mixing without arc commutating dc motor of the fixed brush formula
It is p to permanent magnet pole, the rotor is Y-connected m phases armature winding；The electromechanical mixing of the fixed brush formula is changed without arc
Air-gap field and electromotive force to direct current generator are trapezoidal wave, and armature supply is square wave；The reversing arrangement includes electronic section
And mechanical part；The mechanical part of the reversing arrangement includes brush and commutator；
The brush has 6, and it is respectively positive source brush I, positive source brush II, positive afterflow brush, electricity
Brush is changed in source negative pole brush I, power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II,
Positive afterflow brush, power cathode brush I, power cathode brush II and reverse afterflow, which are changed brush and be fixed on according to position of magnetic pole, to be determined
Sub- side；The positive source brush I and the positive source brush II are separately positioned on 30 ° of N poles center line both sides electrical angle,
30 °/p mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；Institute
State power cathode brush I and power cathode brush II is separately positioned on 30 ° of S poles center line both sides electrical angle, 30 °/p mechanical angles
Position；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；
The commutator is fixed on rotor-side, is rotated together with rotor；The commutator includes p commutator segment group, each
The commutator segment group is made up of m phase commutator segments, each other by mica-sheet insulation, is circumferentially arranged；Per armature described in phase around
Group is connected to p commutator segment for belonging to the phase；Every extremely every phase commutator segment is 180 °/m electrical angles plus its front and rear insulating concrete mica plate,
180 °/(pm) mechanical angle；It is same extremely under, per phase commutator segment mutual deviation 360 °/m electrical angles, 360 °/(pm) mechanical angle；It is different
Under extremely, belong to 360 ° of electrical angles of commutator segment mutual deviation of same phase, 360 °/p mechanical angles.
Another technical solution is, it is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor,
It includes：Stator, rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds, commutation dress
Put and be arranged between the rotor and the stator；The electromechanical mixing of the fixed brush formula is without the described fixed of arc commutating dc motor
Son for p to permanent magnet pole, the rotor is Y-connected m phases armature winding；The electromechanical mixing of the fixed brush formula is without arc
The air-gap field and electromotive force of commutating dc motor are trapezoidal wave, and armature supply is square wave；The reversing arrangement includes the ministry of electronics industry
Point and mechanical part；The mechanical part of the reversing arrangement includes p brush group and commutator；
Each brush group includes：Positive source brush I, positive source brush II, positive afterflow brush, power cathode
Brush is changed in brush I, power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II, forward direction are continuous
Stream brush, power cathode brush I, power cathode brush II and reverse afterflow change brush and are fixed on stator side according to position of magnetic pole,
Each corresponding a pair of magnetic poles of the brush group；The positive source brush I and the positive source brush II are separately positioned on N poles
30 ° of center line both sides electrical angle, 30 °/p mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electricity of center line
Angle, 90 °/p mechanical angles；The power cathode brush I and the power cathode brush II are separately positioned on S poles center line two
30 ° of side electrical angle, 30 °/p mechanical degree positions；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/
P mechanical angles；
The commutator is fixed on rotor-side, is rotated together with the rotor；The commutator is made up of m phase commutator segments,
Each other by mica-sheet insulation, circumferentially arrange；Armature winding described in per phase is connected to a commutator segment for belonging to the phase；
Electrical angle and mechanical angle per phase commutator segment plus its front and rear insulating concrete mica plate are 180 °/m, per the electricity of phase commutator segment mutual deviation
Angle and mechanical angle are also 360 °/m.
Preferably, p groups commutator segment and two kinds of structures of p groups brush are just the same in the case of a pair of magnetic poles.
Preferably, in the case of any magnetic pole logarithm, the electronic section of reversing arrangement is identical.
Preferably, the electronic section includes one or more sets afterflow buffer circuits, wherein often covering afterflow buffer circuit bag
Include a buffering electric capacity and forward and reverse two afterflow bridge arms, each afterflow bridge arm are made up of three diodes；All power supplys are just
Pole brush connection DC power anode, all power cathode brushes connection DC power cathode, all positive afterflow brushes
The midpoint of forward and reverse afterflow bridge arm is connected respectively to all reverse afterflow brushes.
Preferably, DC power polarity change-over switch is used to ensure afterflow electricity during the direct current power source voltage polarity inversion of power supply
Road power supply polarity still keeps constant, and only power supply commutator segment polarity inverts.
Beneficial effects of the present invention are：
1) reversing arrangement includes one or p brush group, and one of brush group is by positive source brush I, positive source
Brush composition is changed in brush II, positive afterflow brush, power cathode brush I, power cathode brush II and reverse afterflow.Brush according to
Position of magnetic pole is fixed on stator side, and symmetrical, so way traffic can be realized.
2) commutator includes one or p commutator segment group, and one of commutator segment group is made up of m phase commutator segments.Per magnetic pole
Electrical angle per phase commutator segment is 180 °/m, and commutator copper consumption reduces one compared with other electromechanical mixing commutating dc motors
Half.
3) there are two kinds of structures of p groups brush and p groups commutator segment to pole motor for p, can preferentially be selected according to practical application
Select, but two kinds of structures are identical in the case of a pair of pole.
Brief description of the drawings
Fig. 1 be the present invention can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor a pair of magnetic poles of three-phase
Electrical connection diagram during form forward direction operation.
Fig. 2 be the present invention can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor a pair of magnetic poles of three-phase
Electrical connection diagram during form inverted running.
Fig. 3 be the present invention can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor a pair of magnetic poles of three-phase
Form structure figure.
1. commutator in figure, 2.C phase commutator segments, 3.B phase commutator segments, 4.A phase commutator segments, 5. positive source brushes I, 6. electricity
Source positive brush II, 7. positive afterflow brushes, 8. power cathode brushes I, 9. power cathode brushes II, 10. reverse afterflow brushes,
11. brush holder.
Embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
Part of the embodiment, rather than whole embodiments.The word of embodiment and directionality below with reference to accompanying drawing description
It is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.Based on the implementation in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, is belonged to
The scope of protection of the invention.Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
In the broad embodiment of the present invention, it is a kind of can the electromechanical mixing of fixed brush formula of way traffic commutated without arc
Direct current generator, it includes：Stator, rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds
Interior, reversing arrangement is arranged between the rotor and the stator；The electromechanical mixing of the fixed brush formula is without arc communicating DC electricity
The stator of machine be p to permanent magnet pole, the rotor is Y-connected m phases armature winding；The fixed brush formula machine
Air-gap field and electromotive force of the electricity mixing without arc commutating dc motor are trapezoidal wave, and armature supply is square wave；The reversing arrangement
Including electronic section and mechanical part；The mechanical part of the reversing arrangement includes brush and commutator；
The brush has 6, and it is respectively positive source brush I, positive source brush II, positive afterflow brush, electricity
Brush is changed in source negative pole brush I, power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II,
Positive afterflow brush, power cathode brush I, power cathode brush II and reverse afterflow, which are changed brush and be fixed on according to position of magnetic pole, to be determined
Sub- side；The positive source brush I and the positive source brush II are separately positioned on 30 ° of N poles center line both sides electrical angle,
30 °/p mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；Institute
State power cathode brush I and power cathode brush II is separately positioned on 30 ° of S poles center line both sides electrical angle, 30 °/p mechanical angles
Position；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；
The commutator is fixed on rotor-side, is rotated together with rotor；The commutator includes p commutator segment group, each
The commutator segment group is made up of m phase commutator segments, each other by mica-sheet insulation, is circumferentially arranged；Per armature described in phase around
Group is connected to p commutator segment for belonging to the phase；Every extremely every phase commutator segment is 180 °/m electrical angles plus its front and rear insulating concrete mica plate,
180 °/(pm) mechanical angle；It is same extremely under, per phase commutator segment mutual deviation 360 °/m electrical angles, 360 °/(pm) mechanical angle；It is different
Under extremely, belong to 360 ° of electrical angles of commutator segment mutual deviation of same phase, 360 °/p mechanical angles.
In another broad embodiment of the present invention：It is a kind of can the electromechanical mixing of fixed brush formula of way traffic commutated without arc
Direct current generator, it includes：Stator, rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds
Interior, reversing arrangement is arranged between the rotor and the stator；The electromechanical mixing of the fixed brush formula is without arc communicating DC electricity
The stator of machine be p to permanent magnet pole, the rotor is Y-connected m phases armature winding；The fixed brush formula machine
Air-gap field and electromotive force of the electricity mixing without arc commutating dc motor are trapezoidal wave, and armature supply is square wave；The reversing arrangement
Including electronic section and mechanical part；The mechanical part of the reversing arrangement includes p brush group and commutator；
Each brush group includes：Positive source brush I, positive source brush II, positive afterflow brush, power cathode
Brush is changed in brush I, power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II, forward direction are continuous
Stream brush, power cathode brush I, power cathode brush II and reverse afterflow change brush and are fixed on stator side according to position of magnetic pole,
Each corresponding a pair of magnetic poles of the brush group；The positive source brush I and the positive source brush II are separately positioned on N poles
30 ° of center line both sides electrical angle, 30 °/p mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electricity of center line
Angle, 90 °/p mechanical angles；The power cathode brush I and the power cathode brush II are separately positioned on S poles center line two
30 ° of side electrical angle, 30 °/p mechanical degree positions；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/
P mechanical angles；
The commutator is fixed on rotor-side, is rotated together with the rotor；The commutator is made up of m phase commutator segments,
Each other by mica-sheet insulation, circumferentially arrange；Armature winding described in per phase is connected to a commutator segment for belonging to the phase；
Electrical angle and mechanical angle per phase commutator segment plus its front and rear insulating concrete mica plate are 180 °/m, per the electricity of phase commutator segment mutual deviation
Angle and mechanical angle are also 360 °/m.
The present invention overcomes the electromechanical mixing of existing fixed brush formula to be unable to way traffic without arc commutating dc motor, and dynamic flat
The problems such as weighing apparatus, the maintenance of brush and replacing convenience.
The present invention is further described by 1-3 below in conjunction with the accompanying drawings.
It is emphasized that what the description below was merely exemplary, rather than in order to limit the scope of the utility model and
It is applied.
A pair of as shown in Figure 1 three-phase can the electromechanical mixing of pole fixed brush formula of way traffic implement without arc commutating dc motor
Electrical connection diagram during example forward direction operation.Electrical connection diagram when Fig. 2 is the embodiment inverted running.Fig. 3 is the embodiment
Structure chart.In the case of a pair of pole, commutator segment and brush all only have one group, so only a kind of structure.
Commutator 1 is fixed on rotor-side, is rotated together with rotor.Armature rotor be Y-connected three-phase symmetric winding A,
B、C.Commutator is made up of three-phase commutator segment, respectively A phases commutator segment 4, B phases commutator segment 3 and C phases commutator segment 2, they each other it
Between by mica-sheet insulation, circumferentially arrange.The phase commutator segment is connected respectively to per phase winding.Electrical angle per phase commutator segment and
Mechanical angle is 60 °, and the electrical angle and mechanical angle of their mutual deviations are 120 °.
Positive source brush I 5, positive source brush II 6, positive afterflow brush 7, power cathode brush I 8, power cathode
Brush II 9 and reverse afterflow change brush 10 and are fixed on stator side according to position of magnetic pole：Positive source brush I 5 and positive source electricity
Brush II 6 and be individually placed to 30 ° of N poles center line both sides electrical angle and mechanical degree position；The positive position lag N of afterflow brush 7 extremely in
90 ° of electrical angles of heart line and mechanical angle；Power cathode brush I 8 and power cathode brush II 9 are individually placed to S poles center line both sides
30 ° of electrical angles and mechanical degree position；Reverse position lag N poles 90 ° of electrical angles of center line of afterflow brush 10 and mechanical angle.
The electronic section of reversing arrangement is made up of a set of afterflow buffer circuit, including a buffering electric capacity C and two afterflows
Bridge arm, positive afterflow bridge arm are made up of diode D1, D2 and D5, and reverse afterflow bridge arm is made up of diode D3, D4 and D6.Power supply
Positive brush I 5 and positive source brush II 6 connect DC power anode U+, power cathode brush I 8 and power cathode brush II 9
DC power cathode U- is connected, positive afterflow brush 7, reverse afterflow brush 10 connect in forward and reverse afterflow bridge arm respectively
Point.In addition, single-pole double-throw relay K1 and K2 are DC power polarity change-over switch, for ensureing the direct current power source voltage of power supply
Freewheeling circuit power supply polarity still keeps constant during polarity inversion, and only power supply commutator segment polarity inverts.
The sliding contact of brush and commutator realizes the commutation of armature winding, and afterflow buffer circuit ensure that commutation process
Middle no electric arc produces.
Under the relay status shown in Fig. 1, positive source brush I 5 and positive source brush II 6 are connecting dc source just
Pole U+, power cathode brush I 8 and power cathode brush II 9 connect DC power cathode U-, the positive operation of motor, in Fig. 1
Direction shown in arrow.Per phase winding by commutator segment successively with positive source brush I 5, positive source brush II 6, positive afterflow
The sliding contact of brush 10 is changed in brush 7, power cathode brush I 8, power cathode brush II 9 and reverse afterflow, and arrives again at power supply
Positive brush I 5 starts next circulation.By taking A phases as an example：Assuming that under initial time A phase windings initially enter N extremely, A phase commutator segments
4 start to contact with positive source brush I 5, A phase winding forward conductions；After forward direction 60 ° of electrical angles of operation, A phase windings are in N poles
Under the neutral conductor, A phases commutator segment 4 disconnects with positive source brush I 5, starts to contact with positive source brush II 6, A phase windings are still
Forward conduction；After forward direction 120 ° of electrical angles of operation, under A phase windings leave N extremely, A phases commutator segment 4 is disconnected with positive source brush II 6
Open, start to contact with positive afterflow brush 7, A phase windings start positive afterflow；After forward direction 180 ° of electrical angles of operation, A phase windings are opened
Under beginning to enter S extremely, A phases commutator segment 4 disconnects with positive afterflow brush 7, starts to contact with power cathode brush I 8, A phase windings are anti-
To conducting；Similarly, after forward direction runs 300 ° of electrical angles, under A phase windings leave S extremely, A phases commutator segment 4 and power cathode electricity
II 9 disconnections are brushed, are contacted with reverse afterflow brush 10, A phase windings start reverse afterflow.
Under the relay status shown in Fig. 2, positive source brush I 5 and positive source brush II 6 connect direct current negative pole
U-, power cathode brush I 8 and power cathode brush II 9 connect DC power anode U+, motor inverted running, such as arrow in Fig. 2
Direction shown in head.Change brush 10, power cathode electricity with positive source brush I 5, reverse afterflow successively by commutator segment per phase winding
II 9, power cathode brush I 8, positive afterflow brush 7, positive source brush II 6 are brushed, and arrives again at positive source brush I 5 and opens
Begin next circulation.It is identical when operation principle is run with forward direction during motor inverted running because six brushes are symmetrical.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (6)
1. it is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor, it is characterised in that including：Stator,
Rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds, and reversing arrangement is arranged on described
Between rotor and the stator；The electromechanical stator of the mixing without arc commutating dc motor of the fixed brush formula is p to permanent magnetism
Body magnetic pole, the rotor are Y-connected m phases armature winding；The electromechanical mixing of the fixed brush formula is without arc commutating dc motor
Air-gap field and electromotive force be trapezoidal wave, armature supply is square wave；The reversing arrangement includes electronic section and mechanical part；
The mechanical part of the reversing arrangement includes brush and commutator；
The brush has 6, and it is respectively that positive source brush I, positive source brush II, positive afterflow brush, power supply are born
Brush is changed in pole brush I, power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II, forward direction
Afterflow brush, power cathode brush I, power cathode brush II and reverse afterflow change brush and are fixed on stator according to position of magnetic pole
Side；The positive source brush I and the positive source brush II are separately positioned on 30 ° of N poles center line both sides electrical angle, 30 °/
P mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；The electricity
Source negative pole brush I and power cathode brush II are separately positioned on 30 ° of S poles center line both sides electrical angle, 30 °/p mechanical angles position
Put；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p mechanical angles；
The commutator is fixed on rotor-side, is rotated together with rotor；The commutator includes p commutator segment group, each described
Commutator segment group is made up of m phase commutator segments, each other by mica-sheet insulation, is circumferentially arranged；Armature winding connects described in per phase
It is connected to p commutator segment for belonging to the phase；Every extremely every phase commutator segment is 180 °/m electrical angles plus its front and rear insulating concrete mica plate,
180 °/(pm) mechanical angle；It is same extremely under, per phase commutator segment mutual deviation 360 °/m electrical angles, 360 °/(pm) mechanical angle；It is different
Under extremely, belong to 360 ° of electrical angles of commutator segment mutual deviation of same phase, 360 °/p mechanical angles.
2. it is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor, it is characterised in that including：Stator,
Rotor and reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds, and reversing arrangement is arranged on described
Between rotor and the stator；The electromechanical stator of the mixing without arc commutating dc motor of the fixed brush formula is p to permanent magnetism
Body magnetic pole, the rotor are Y-connected m phases armature winding；The electromechanical mixing of the fixed brush formula is without arc commutating dc motor
Air-gap field and electromotive force be trapezoidal wave, armature supply is square wave；The reversing arrangement includes electronic section and mechanical part；
The mechanical part of the reversing arrangement includes p brush group and commutator；
Each brush group includes：Positive source brush I, positive source brush II, positive afterflow brush, power cathode brush
Ith, brush is changed in power cathode brush II and reverse afterflow；The positive source brush I, positive source brush II, positive afterflow electricity
Brush, power cathode brush I, power cathode brush II and reverse afterflow change brush and are fixed on stator side according to position of magnetic pole, each
Corresponding a pair of the magnetic poles of the brush group；The positive source brush I and the positive source brush II are separately positioned on N poles center
30 ° of line both sides electrical angle, 30 °/p mechanical degree positions；Described positive afterflow brush position hysteresis N poles 90 ° of electrical angles of center line,
90 °/p mechanical angles；The power cathode brush I and the power cathode brush II are separately positioned on 30 ° of S poles center line both sides
Electrical angle, 30 °/p mechanical degree positions；The reversely afterflow brush position hysteresis N poles 90 ° of electrical angles of center line, 90 °/p machineries
Angle；
The commutator is fixed on rotor-side, is rotated together with the rotor；The commutator is made up of m phase commutator segments, each other
Between by mica-sheet insulation, circumferentially arrange；Armature winding described in per phase is connected to a commutator segment for belonging to the phase；Per phase
Commutator segment is 180 °/m plus the electrical angle and mechanical angle of its front and rear insulating concrete mica plate, per the electrical angle of phase commutator segment mutual deviation
Also it is 360 °/m with mechanical angle.
3. according to one of claim 1 or 2 can way traffic the electromechanical mixing of fixed brush formula without arc communicating DC electricity
Machine, it is characterised in that：P groups commutator segment and two kinds of structures of p groups brush are just the same in the case of a pair of magnetic poles.
4. according to one of claim 1 or 2 can way traffic the electromechanical mixing of fixed brush formula without arc communicating DC electricity
Machine, it is characterised in that：In the case of any magnetic pole logarithm, the electronic section of reversing arrangement is identical.
5. it is according to claim 4 it is described can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor, it is special
Sign is：The electronic section includes one or more sets afterflow buffer circuits, delays wherein often covering afterflow buffer circuit and including one
Electric capacity and forward and reverse two afterflow bridge arms are rushed, each afterflow bridge arm is made up of three diodes；All positive source brushes connect
Connect DC power anode, all power cathode brushes connection DC power cathode, all positive afterflow brushes and all
Reverse afterflow brush is connected respectively to the midpoint of forward and reverse afterflow bridge arm.
6. according to one of claim 1 or 2 can way traffic the electromechanical mixing of fixed brush formula without arc communicating DC electricity
Machine, it is characterised in that：DC power polarity change-over switch is used to ensure afterflow electricity during the direct current power source voltage polarity inversion of power supply
Road power supply polarity still keeps constant, and only power supply commutator segment polarity inverts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711423935.0A CN107896032A (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423935.0A CN107896032A (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor |
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| CN107896032A true CN107896032A (en) | 2018-04-10 |
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| CN201711423935.0A Pending CN107896032A (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic the electromechanical mixing of fixed brush formula without arc commutating dc motor |
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| CN112910185A (en) * | 2021-03-31 | 2021-06-04 | 清华大学 | Uncontrolled mechanical-electronic hybrid reversing device |
| CN112953127A (en) * | 2021-04-09 | 2021-06-11 | 清华大学 | Controllable mechanical-electronic hybrid reversing device and reversing method |
| CN117439318A (en) * | 2023-12-20 | 2024-01-23 | 常州市凯迪电器股份有限公司 | Permanent magnet direct current motor with bidirectional advance reversing |
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