CN1033224A - No rectification (commutation) device induction machine and its derivative motors - Google Patents
No rectification (commutation) device induction machine and its derivative motors Download PDFInfo
- Publication number
- CN1033224A CN1033224A CN 87107856 CN87107856A CN1033224A CN 1033224 A CN1033224 A CN 1033224A CN 87107856 CN87107856 CN 87107856 CN 87107856 A CN87107856 A CN 87107856A CN 1033224 A CN1033224 A CN 1033224A
- Authority
- CN
- China
- Prior art keywords
- armature
- commutation
- rectification
- induction machine
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Dc Machiner (AREA)
Abstract
No rectification (commutation) device induction machine and its derivative motors are that transformer and commutatorless machine are combined as the absence of commutator induction machine.Secondary winding (2) is connected with armature conductor (7) by brush (5), current collector (8) and is constituted armature closeding circuit, and armature conductor is the current-carrying I in air-gap field
2Conductor and produce electromagnetic torque is converted to mechanical energy with single phase alternating current (A.C.) electric energy or pulsating direct current electric energy.It is big to have the starting overload torque, and the advantage that the stepless torque changing adjusting range is wide is applicable to the various applications that need the bending moment speed governing.
Description
The invention belongs to technical field of motors.
Existing induction machine exists: overload, and starting torque is little; The stepless torque-changing speed-regulating poor performance; Efficient is low during speed governing; All be to set out with rotating magnetic field, can not directly use impulsive magnetic field, promptly can not directly use single-phase alternating current (or Rectified alternating current), rotating speed is subjected to the shortcomings such as restriction of rotating magnetic field synchronous speed.
Purpose of the present invention: be exactly the shortcoming that solves and overcome above-mentioned induction machine.With transformer and no rectification (commutation) device motor combination (comprehensively) is a kind of novel no rectification (commutation) device induction machine (impulsive magnetic field induction machine).It not only has can transformation, the advantage of interchange, and have and can directly use impulsive magnetic field, can directly use single-phase alternating current (or Rectified alternating current); Starting, overload torque is big; The stepless torque-changing speed-regulating scope is wide, efficient height during speed governing, series of advantages such as rotating speed height.
One, the primary structure of no rectification (commutation) device induction machine
The primary structure of no rectification (commutation) device induction machine is made up of stator and rotor two large divisions, and disc armature as shown in Figure 1, 2, 3; Cylinder armature is shown in Fig. 4,5,6.
Stationary part: yoke and the magnetic pole 3 formed by stator core, the once parts that do not rotate such as (excitatory) winding 1, secondary (armature) winding 2, brush 5, end cap.
Rotor portion: by the parts of rotations such as armature shaft 6, armature 7, current collector 8, fan and bearing.
Stator core (yoke and magnetic pole) is that 0.35 or 0.5 millimeter silicon steel plate stacking forms by thickness, also available C core, roughly the same transformer core.Magnetic pole of the stator is axially to be alternately distributed (NSSNNS, SNNSSN) in pairs, and stator field is an impulsive magnetic field.
First and second winding forms with the high strength enamelled wire coiling, roughly the same first and second winding of transformer.Secondary (armature) winding can be in stator core, also can part in stator core, part can also be entirely on rotor on rotor.
Brush is generally selected solid brushes such as metallic graphite carbon for use, the brush that roughly the same existing motor current collector is used.The best brush of special requirement can be selected the liquid metal conductor for use, as mercury or Na-K alloy (22%N
2, 78%K) etc.
Armature disc is to be rolled into all good ribbon spiral of the conductive magnetic waveguide performance of no silicon, or the pre-XianCheng of steel disc involute shape plug-in mounting is overrided to form, and steel band or steel disc are armature conductor, are again armature cores, and promptly armature conductor and armature core are integrated.Have insulation-epoxy resin bonding to press-fit discoid integral body between interband or sheet, it is current collector that armature disc outer rim and brush slip the place.The cylinder armature difference just is overrided to form with no silicon steel sheet plug-in mounting.
Armature disc and armature shaft are interference fit or spline fitted rotors in aggregates, and middle armature disc is that two armature discs are integrated.
In order to reduce a leakage field, armature shaft adopts the nonmagnetic alloy steel to make.
Secondary (armature) winding is connected with armature conductor (armature shaft) by brush, current collector and is directly constituted armature closure (generally being short circuit) loop, secondary winding electric current, just armature supply.
End cap adopts cast aluminium alloy, and two end cap is fitted in stator rotor together by taking tight bolt.
Two, the basic functional principle of no rectification (commutation) device induction machine
When once (excitatory) when winding has ac power supply, one time winding passes through alternating current and excitatory formation impulsive magnetic field, alternating flux is just arranged in the motor magnetic circuit, according to the induced potential law of electromagnetic induction, arbitrary alternating flux (pulsating magnetic flux) is all inducing corresponding induced potential in the winding of chain mutually with it.Therefore, main flux φ once with in the secondary winding is inducing electromotive force E one time respectively
1With secondary electromotive force E
2Secondary electromotive force E
2Promote its induced current I
2, pass through brush, current collector along secondary winding, armature conductor, the armature closeding circuit that armature shaft constitutes flows through.Armature conductor is the current-carrying I in air-gap field
2Conductor according to the electromagnetic force law, must be subjected to the electromagnetic force effect, and the direction of this electromagnetic force can judge that the size of the electromagnetic force of an armature disc is with left hand rule
F
1＝
2lsinα
Because of lsin α=R-r substitution following formula,
F
1＝
2（R-r）
This electromagnetic force F
1The electromagnetic torque that acts on armature disc and the axle is
M
1＝
2（R-r）r-＝
2（R-r）· (R+r)/2
＝ 1/2 （R
2-r
2）
2
M in the formula
1Electromagnetic torque (Newton meter) on-one armature disc;
The effective outer radius of R-armature disc (rice);
The effective inside radius of r-armature disc (rice);
The effective mean radius of r-armature disc (rice);
Following formula shows: electromagnetic torque M
1Effective radius with armature disc wide (R-r), the instantaneous magnetic of air gap are close
, and secondary (armature) electric current
2Increase and the increase that is directly proportional.Following formula is the electromagnetic torque of an armature disc, if W armature disc arranged, then total electromagnetic torque is WM
1
Three, the operating characteristic of no rectification (commutation) device induction machine
According to whole circuit law of ohm, armature (secondary) circuital current
2Effective value be
I
2= (E
2- E
3)/(Z
2) = (4.44fN
2φm- (R
2- r
2)πBn
2)/(Z
2)
E in the formula
2=4.44fN
2φ m-secondary winding induced potential effective value (volt)
E
3=(R
2-r
2) π Bn
2The moving electromotive force (volt) of giving birth to of-armature disc;
Z
2-armature (secondary) closed-loop path impedance (ohm).
With following formula substitution electromagnetic torque formula,
M
1= 1/2 (R
2-r
2) B ·〔 (4.44fN
2φm- (R
2- r
2)πBn
2)/(Z
2) 〕
Following formula shows: it has the soft mechanical property similar with series-wound motor.The armature disc rotation speed n
2Lower, electromagnetic torque M then
1Bigger.When rotating speed equalled zero, torque reached maximum, and torque is increased and reduced with rotating speed, makes E when rotating speed is increased to
2Convergence E
2The time, torque levels off to zero.Be that it has automatic adaptation resistive torque, the stepless torque-changing speed-regulating scope is wide, overload, the characteristic that starting torque is big.Simultaneously, rotating speed increases with load torque and descends significantly, and the motor power output changes not quite.
It has the effect that similar rectification (commutation) device series-wound motor armature supply and exciting curent are same electric current (
1=
0+ (
2') ignore
0,
1=-
' 2).But the secondary current of absence of commutator induction machine is the induced current of primary current by electromagnetic coupled, and it and primary current have the positive connection of the law of electromagnetic induction, the rule transmission of energy, but it is not a primary current.It is opposite with the primary current direction, and quantitatively the approximate formula with primary current is (I
1)/(I
2) ≈ 1/ (K)=-(N
2)/(N
1) following formula shows that make peace the greatly number of turn of winding of two electric currents in the winding is inversely proportional to.Therefore, it is not a series excited machine, but has no rectification (commutation) the device motor that transformation ratio is arranged of series-wound motor function, i.e. absence of commutator induction machine (can be called for short transformation-motor).
According to above-mentioned electromagnetic torque formula, change primary voltage U
2(main flux φ m), frequency f, secondary winding number of turn N
2, armature (secondary) impedance loop Z
2, all can change the electromagnetic torque M of absence of commutator induction machine
1This illustrates that it has good bending moment speed governing controllability, and promptly the bending moment speed regulating control is convenient.
Four, its derivative motors of no rectification (commutation) device induction machine
1. compounding does not have secondary (armature) winding of rectification (commutation) device motor with the absence of commutator induction machine, the field winding that reconfiguration is and the interior external circuit of armature is connected, be exactly that compounding does not have rectification (commutation) device motor or generator, can be used for direct current, also can be used for alternating current, but also the AC and DC electricity is general.
2. series excitation does not have rectification (commutation) device motor once (excitatory) winding of absence of commutator induction machine is removed, with the secondary winding reconfiguration be and armature in the field winding of external circuit series connection, be exactly that series excitation does not have rectification (commutation) device motor or generator, can be used for direct current and also can be used for alternating current, but also the AC and DC electricity is general.
3. also swashing no rectification (commutation) device motor removes the secondary winding of absence of commutator induction machine, with external circuit reconfiguration in the armature be and once (excitatory) winding parallel connection, be exactly and swash no rectification (commutation) device motor or generator, can be used for direct current, also can be used for alternating current.
4. its sharp no rectification (commutation) device motor is removed the secondary winding of absence of commutator induction machine, the external circuit reconfiguration is and its excitation circuit of winding in the armature, be exactly that it swashs no rectification (commutation) device motor or generator, can be used for direct current, also can be used for alternating current, but will note the coupling of its sharp power supply.
The advantage of five no rectification (commutation) device induction machines
1. compare the advantage that is had with AC commutator machine
Absence of commutator induction machine and AC commutator machine are same, and it is wide to have the stepless torque-changing speed-regulating scope, and outside overload, the advantage such as starting torque is big, and speed regulating control is convenient, it also has the not available advantage of AC commutator machine.
(1) low cost of manufacture does not have the commutator of complex structure, and first and second winding can be to concentrate winding, simple structure, good manufacturability is few with copper.
(2) maintenance and repair expense is hanged down communtatorless maintenance and repair expense, and it is convenient to concentrate the winding maintenance and repair to change.
(3) using the long current collector of longevity order is that the steel disc resistance to wear is good, and the life-span is long, but and brush plating, and the commutator diameter must be scrapped less than given size.
(4) the rotating speed height is because of its commutation requirement of rotating speed without limits.
(5) volume is little, and in light weight do not have commutator, a rotating speed height.
(6) the efficient height loss that do not commutate, the power factor height, the energy loss during speed governing is little.
(7) can change over various derivations and not have rectification (commutation) device motor.
2. compare the advantage that is had with electromagnetic coupling asynchronous motor
(1) low cost of manufacture does not have the electromagnetic slip clutches of complex structure.
(2) mechanical property is good, and it is wide to have automatic adaptation resistive torque stepless torque-changing speed-regulating scope, overload, the characteristic that starting torque is big.
(3) the high asynchronous motor speed of rotating speed is subjected to the restriction of rotating magnetic field synchronous speed, and electromagnetic slip clutches must be lower than the rotating speed of armature again.Use general industrial-frequency alternating current, maximum speed is less than 3000 rev/mins.And absence of commutator induction machine rotating speed is generally 4000～20000 rev/mins.
(4) can be from rotating magnetic field directly, can not be directly faint-hearted with single-phase alternating current N ligusticumic heavy curtain grasshopper Gou black emperor of apricot Φ and pregnant with single phase alternating current power supply (or Voltage pulsating direct-current supply) asynchronous motor) baring ⅲ , to condemn brave revive assist faint-hearted) baring the faint-hearted ∈ apology of ⅲ revive assist smile, fortunately to talk about threshold edge thumb faint-hearted. calls out the bucktooth Ha and pouts that to melt the assist of the far or indistinct of the stopping of saddle cloth revive faint-hearted.The virtuous of the saddle cloth reel silk from cocoons material revive assist of stretching tight of sheding baby teeth is faint-hearted. Ge plays apology smile fortunately to talk about the black of the female apricot Φ of the abundant ┑ of the abundant ㄆ felt of threshold Yue
(5) volume is little, and in light weight do not have electromagnetic slip clutches, a rotating speed height.
(6) the efficient height does not have the loss of electromagnetic slip clutches, the power factor height, and energy loss is little during speed governing.
(7) can change over various derivations and not have rectification (commutation) device motor.
Claims (10)
1, a kind of stator by brush (5), a winding (1), secondary winding (2), iron core and magnetic pole (3), and armature shaft (6), armature (7), the induction machine that the rotor of current collector (8) is formed, it is characterized in that: a, be transformer and the combination of not having rectification (commutation) device motor, secondary winding by brush, current collector direct formation armature closure (generally the being short circuit) loop of connecting with armature conductor, the electric current of secondary winding, also be armature supply, b, stator field are impulsive magnetic fields.
2, induction machine according to claim 1 is characterized in that the armature rotor dish is that involute steel disc plug-in mounting is overrided to form, and has insulation, armature conductor and armature core to be integrated between sheet, and the armature disc outer rim is a current collector.
3, induction machine according to claim 1 is characterized in that secondary (armature) winding can be in stator core.
4, induction machine according to claim 1 is characterized in that magnetic pole of the stator is axially to be alternately distributed (NSSNNS, SNNSSN) in pairs.
5, induction machine according to claim 1 is characterized in that best brush can select the liquid metal conductor for use.
6, induction machine according to claim 1, it is characterized in that to derive from compounding and do not have rectification (commutation) device motor, with its secondary winding, the field winding that reconfiguration is and the interior external circuit of armature is connected is exactly that compounding does not have rectification (commutation) device motor or generator.
7, induction machine according to claim 1, it is characterized in that to derive from series excitation and do not have rectification (commutation) device motor, its winding is removed, and the field winding that the secondary winding reconfiguration is and the interior external circuit of armature is connected is exactly that series excitation does not have rectification (commutation) device motor or generator.
8, induction machine according to claim 1, it is characterized in that to derive from and sharp no rectification (commutation) device motor, its secondary winding is removed, and the external circuit reconfiguration is and a winding parallel connection in the armature, is exactly and sharp no rectification (commutation) device motor or generator.
9, induction machine according to claim 1, it is characterized in that to derive from it and swash no rectification (commutation) device motor, its secondary winding is removed, and the external circuit reconfiguration is and its excitation circuit of winding in the armature, is exactly that it swashs no rectification (commutation) device motor or generator.
10, do not have rectification (commutation) device motor according to claim 6,7,8,9 described derivations, it is characterized in that can be used for direct current, can be used for alternating current yet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107856 CN1033224A (en) | 1987-11-14 | 1987-11-14 | No rectification (commutation) device induction machine and its derivative motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107856 CN1033224A (en) | 1987-11-14 | 1987-11-14 | No rectification (commutation) device induction machine and its derivative motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1033224A true CN1033224A (en) | 1989-05-31 |
Family
ID=4816267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107856 Pending CN1033224A (en) | 1987-11-14 | 1987-11-14 | No rectification (commutation) device induction machine and its derivative motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054711A (en) * | 2020-08-28 | 2020-12-08 | 北京纳米能源与系统研究所 | Mechanical rectification type friction nano power generation device |
-
1987
- 1987-11-14 CN CN 87107856 patent/CN1033224A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054711A (en) * | 2020-08-28 | 2020-12-08 | 北京纳米能源与系统研究所 | Mechanical rectification type friction nano power generation device |
| CN112054711B (en) * | 2020-08-28 | 2021-10-29 | 北京纳米能源与系统研究所 | Mechanical rectification type friction nano power generation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7134180B2 (en) | Method for providing slip energy control in permanent magnet electrical machines | |
| CN1572052A (en) | Electromechanical converter | |
| CN1276100A (en) | Wound-rotor induction motor and energy conversion facility for variable speed electric machine | |
| CN111969822B (en) | Mixed excitation multi-phase reluctance motor and power generation system | |
| CN106787562A (en) | Alternately pole, mixed excitation directly drives vernier motor | |
| CN113437849B (en) | Double-rotor single-stator axial magnetic flux hybrid excitation motor | |
| CN101969257B (en) | Hybrid excitation permanent magnet motor with tooth harmonic excitation | |
| US20090102328A1 (en) | Power generator | |
| CN104682621A (en) | Axial magnetic field slip synchronization-type double-direct wind power generator | |
| CN109104014A (en) | A kind of four phase double winding vernier motors | |
| CN111092499A (en) | Harmonic excitation electro-magnetic doubly salient motor and control method thereof | |
| CN102545501A (en) | Axial dual-stator brushless double-fed motor | |
| CN104967272B (en) | A kind of pole-changing-rotor frequency control motor of permanent magnetism cage modle | |
| CN112152357A (en) | Stator excitation type field modulation motor based on magnetic pole adjusting structure | |
| CN1658478A (en) | Mixed excitation bisalient-pole permanent-magnet synchronous machine | |
| RU2700179C1 (en) | Electric machine | |
| CN1033224A (en) | No rectification (commutation) device induction machine and its derivative motors | |
| CN1949629A (en) | Electric machine based on transformer working principle and speed regulation thereof | |
| CN112398302A (en) | Wide speed regulation range hybrid excitation synchronous motor | |
| CN107846091B (en) | A kind of motorized roller magneto | |
| CN206575314U (en) | One kind mixing iron core motor | |
| CN111082625A (en) | Alternating magnetic pole brushless hybrid excitation synchronous motor | |
| CN112564443B (en) | Mixed excitation axial magnetic field permanent magnet synchronous motor structure | |
| CN1032719A (en) | Annular electric and variable torque motor thereof | |
| CN218829275U (en) | Inductor type AC generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |