CN1967982A - Self-excitation TV with separated field pole - Google Patents
Self-excitation TV with separated field pole Download PDFInfo
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- CN1967982A CN1967982A CN 200510016184 CN200510016184A CN1967982A CN 1967982 A CN1967982 A CN 1967982A CN 200510016184 CN200510016184 CN 200510016184 CN 200510016184 A CN200510016184 A CN 200510016184A CN 1967982 A CN1967982 A CN 1967982A
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Abstract
The invention relates to a self-excited motor with separated excited pole, wherein it comprises rotor with main body whose axle has at least one rod conductor, a frame around the main body, a permanent magnet; and a stator with larger inner diameter than outer diameter of rotor, hollow part inserted into rotor, two excite grooves near several induce grooves radiated at the inner circumference of hollow part; excite pole for magnetizing said permanent magnet and combined between exciting grooves; exciting winding through two grooves; induce winding through the induce grooves. The invention can improve magnetizing efficiency.
Description
Technical field
The present invention relates to a kind of self-excited machine (self-magnetizing motor), relate to a kind of rotary speed or rather and reach synchronizing speed (synchronous speed) before at motor, (induction motor) drives as induction machine, and after the rotary speed of motor reaches synchronizing speed, the then invention of the self-excited machine aspect that drives as permanent magnet motor (permanent magnetic motor) with separated field pole.
Background technology
In general, induction machine is to flow in a kind of lead that utilizes on the magnetic field when electric current is arranged, to produce the Fleming's lefft-hand rule principle of active force on the lead, be formed with under the situation of rotating magnetic field, when generation gives the induced current of electromagnetic induction rule in the excellent conductor of installing in the inside of gyrator, above-mentioned excellent conductor dbus is crossed Fleming's lefft-hand rule principle and is subjected to active force, and the above-mentioned active force that is subjected to is converted to the device of revolving force.
But, in aforesaid induction machine, reach the rotary speed of rotating magnetic field when the rotary speed of gyrator, when being synchronizing speed, to not produce induced current in the excellent conductor that install the inside of above-mentioned gyrator, thereby the induced torque (induction torque) that is used in the above-mentioned excellent conductor of rotation is 0, and therefore, above-mentioned gyrator can only be rotated with the speed less than the synchronizing speed of above-mentioned rotating magnetic field.
Promptly, when connection has alternating current as the 60Hz of the general a-c cycle of Korea S, and use under the situation of 2 utmost point motors, its synchronizing speed will become 3 by 120* (frequency)/(number of poles), and 600rpm (revolution per minute) is under the situation of induction machine, can not reach above-mentioned 3, the rotary speed of 600rpm, but will be with about 3, the speed of 000rpm is rotated.
Consider the problems referred to above, in U.S. Patent Publication the 4th, 600, in No. 873 (Synchronous A.CMotor :) hereinafter referred to as " prior art ", be equipped with on the gyrator of excellent conductor, be provided with and carry out magnetized permanent magnetism body, before the speed of gyrator reaches the synchronizing speed of rotating magnetic field, drive as induction machine, and, in order to reach the synchronizing speed of rotating magnetic field, and above-mentioned permanent magnetism body is magnetized, and be converted into the permanent magnet motor, thereby make it more near synchronizing speed.
But, in aforesaid prior art, be installed on stator, and above-mentioned permanent magnet is carried out magnetized field pole (exciting pole) be integrally formed in said fixing, therefore, in order to improve the magnetization efficient of above-mentioned field pole, need to comprise field pole constitutes high magnetic permeability (permeability) at interior whole stator ferromagnetism body.
Thus, constitute the ferromagnetism body of high magnetic permeability in order to make above-mentioned whole stator, and need the expense of great number, and, in the relative motion of said fixing son and gyrator, under the situation that the end of field pole damages, the needs replacing is comprised field pole at interior whole stator.
This shows that above-mentioned existing induction machine still has many defectives, and the assistant officer waits to be improved.
Because the defective that above-mentioned existing induction machine exists, the design people is based on being engaged in this type of product design manufacturing for many years, amassing has abundant practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of self-excited machine that improves molding structure with separated field pole, can improve the general molding structure of existing conventional induction machine on the market, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective that existing induction machine exists, and provide a kind of self-excited machine of new structure with separated field pole, make before its rotary speed at motor reaches synchronizing speed, drive as induction machine, and after the rotary speed of above-mentioned motor reaches synchronizing speed, then drive as the permanent magnet motor, thereby can prevent the waste of Master Cost, and can improve magnetization efficient.
The present invention solves its technical problem underlying and realizes by the following technical solutions.Self-excited machine according to the present invention's proposition with separated field pole, it is characterized in that, include following several sections: gyrator, it has the gyrator body, direction of principal axis connects the more than one excellent conductor of above-mentioned gyrator body, surround the outer peripheral face of above-mentioned gyrator body, and the permanent magnetism body that can be magnetized; Stator, it comprises and has the internal diameter bigger than the external diameter of gyrator, and be used to insert the hollow bulb of above-mentioned gyrator, be arranged at inner peripheral surface from above-mentioned hollow bulb, near 2 excitation slots of a plurality of induction slots (slot) of isolating formation with radiation shape mutually, in order to magnetize above-mentioned permanent magnetism body, and the dismantled and assembled field pole that is incorporated between above-mentioned 2 excitation slots; Magnet exciting coil, it runs through above-mentioned 2 excitation slots and forms; Induction coil, it runs through above-mentioned a plurality of induction slot and forms.
In the present invention, before the rotary speed of motor reaches synchronizing speed, drive as induction machine, and after the rotary speed of above-mentioned motor reaches synchronizing speed, then drive, thereby can prevent the waste of Master Cost, and can improve magnetization efficient as the permanent magnet motor.Simultaneously, in the relative motion of said fixing son and gyrator, under the situation that the end of field pole damages, will only need the above-mentioned field pole of replacing, thereby can prevent the waste on the expense.
Wherein, preferably constitute cone-shaped (taper) with an end of the sub field pole that combines of said fixing, this is the phenomenon of leaking for magnetized flux on the permanent magnet that prevents gyrator, and can improve magnetization efficient.
And above-mentioned gyrator body and above-mentioned field pole preferably are made of the ferromagnetism body of high magnetic permeability.This be because, constitute by material by high magnetic permeability, can reduce the reluctance force that produces in the magnetized flux in the permanent magnet of gyrator, and by constituting the ferromagnetism body, thereby can improve magnetic permeability.In the case, above-mentioned field pole preferably is made of silicon steel (silicon steel).
In addition, above-mentioned permanent magnetism body preferably can carry out magnetized material formation by barium ferrite (barium ferrite) or barium strontium ferrite (barium strontium ferrite) etc.
And, in magnetic field, producing desirable induced current in order to make above-mentioned excellent conductor by the electromagnetic induction rule, above-mentioned excellent conductor preferably is made of electric conductors such as copper, copper alloy or aluminium.
The present invention solves its technical problem and can also adopt following technical measures further to realize.
The present invention solves its technical problem underlying and realizes by the following technical solutions.Self-excited machine according to the present invention's proposition with separated field pole, gyrator, it includes the gyrator body, and direction of principal axis connects the more than one excellent conductor of above-mentioned gyrator body, surround the outer peripheral face of above-mentioned gyrator body, and the permanent magnetism body that can be magnetized; Stator, it comprises and has the internal diameter bigger than the external diameter of gyrator, and be used to insert the hollow bulb of above-mentioned gyrator, be arranged at inner peripheral surface from above-mentioned hollow bulb, near 2 excitation slots of a plurality of induction slots (slot) of isolating formation with radiation shape mutually, in order to magnetize above-mentioned permanent magnetism body, and the dismantled and assembled field pole that is incorporated between above-mentioned 2 excitation slots; Magnet exciting coil, it runs through above-mentioned 2 excitation slots and forms; The main induction coil, it runs through a plurality of main induction slots and forms; Auxiliary induction coil, it runs through a plurality of auxiliary induction slots and forms, and connects the alternating current with phase place more forward than the phase place of the alternating current of connecting in the above-mentioned main induction coil.
In the present invention, will constitute above-mentioned main induction coil and auxiliary induction coil in addition, thereby connection has the AC power of different mutually phase places (phase) and produces phase difference, and more be easy to generate rotating magnetic field thus.
In the case, directly connect making the electric current that is switched to above-mentioned main induction coil from AC power, be switched to the electric current of above-mentioned auxiliary induction coil earlier by connecting again behind the capacitor and make from AC power, thus, more than the above-mentioned phase place that is switched to the electric current of auxiliary induction coil will be spent than the phase place of the electric current that is switched to above-mentioned main induction coil forward 90, and produce phase difference.
At this moment, when the electric current that is switched to above-mentioned main induction coil be switched to when producing phase difference between the electric current of auxiliary induction coil, utilize the phase difference of above-mentioned generation, will more be easy to generate rotating magnetic field.That is, utilize 2 phase currents to make 3 phase efficiency of motor reach maximum among the present invention.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention is owing to institute's technical scheme on adopting, before the rotary speed of motor reaches synchronizing speed, drive as induction machine, and after the rotary speed of above-mentioned motor reaches synchronizing speed, then drive, thereby can prevent the waste of Master Cost, and can improve magnetization efficient as the permanent magnet motor.
The present invention is on the practicality and cost benefit of structural design, use, really it is required to meet industry development fully, and disclosed structure is unprecedented innovative design, it does not see any publication, do not see more that before application that identical architectural feature is arranged is known, formerly public, and also not seeing on the market has similar products like, and has novelty really.
Structure of the present invention really has more technological progress than existing induction machine, and its particular structure feature and more can also be far from existing induction machine and can compare, more existing induction machine has more technical progress, and has the multinomial effect of enhancement, and creative really.
Designer of the present invention studies this series products experience of existing ten several years, quite understand for existing problem of existing induction machine and defective, and the present invention founds according to above-mentioned Study of Defects exploitation, it can reach its intended purposes and effect really, not only on the kenel of space, really belong to innovation, and the true accessory of more existing induction machine has suitable enhancement effect, and existing known product has more technological progress and practicality, and produced handy and practical good effect, and have practicality really.
In sum, the present invention really belongs to innovation on the kenel of space, and has the multinomial effect of enhancement than existing product, and simple in structure, is suitable for practicality, has the extensive value of industry.It is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solution of the present invention feature, for making the professional and technical personnel can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION stereogram of the self-excited machine of the present invention with separated field pole;
Fig. 2 is the sectional view of structure of the self-excited machine of Fig. 1 separated field pole;
Fig. 3 is the chart of performance of the self-excited machine of Fig. 1 separated field pole.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
The symbol description * * * of * * accompanying drawing major part
10: gyrator 11: rotating shaft
12: gyrator body 13: excellent conductor
14: permanent magnetism body 20: stator
21: hollow bulb 22: the main induction slot
23: auxiliary induction slot 24: the excitation slot
25: field pole 251: the field pole body
252: field pole guiding device 253: the field pole lug boss
See also Fig. 1, shown in Figure 2, the present invention has the self-excited machine of separated field pole, and it is mainly by including in the self-excited machine 1: the gyrator 10 of drum; With the outer peripheral face 14a of the above-mentioned gyrator 10 set distance of being separated by, and surround the stator 20 that the outer peripheral face 14a of above-mentioned gyrator 10 installs.
Wherein, include in the above-mentioned gyrator 10: its central part is through with the gyrator body 12 of the drum of rotating shaft 11; Parallel with above-mentioned rotating shaft 11, connect near a plurality of excellent conductor 13 the outer peripheral face that is arranged at above-mentioned gyrator body 12; Surround the permanent magnetism body 14 of the outer peripheral face installation of above-mentioned gyrator body 12.
In addition, include in said fixing 20: have the internal diameter bigger, and be used to insert the hollow bulb 21 of above-mentioned gyrator 10 than the external diameter of above-mentioned gyrator 10; From the inner peripheral surface of above-mentioned hollow bulb 21, be formed at the upside of said fixing 20 and a plurality of main induction slots 22 of downside with radial mutual isolation; Be formed at the side between above-mentioned upside and the downside main induction slot 22, and have the auxiliary induction slot 23 littler than above-mentioned main induction slot 22; Be formed at the opposite side between above-mentioned upside and the downside main induction slot 22, and face 2 excitation slots 24 that form with above-mentioned auxiliary induction slot 23.
In the case, between above-mentioned 2 excitation slots 24, in order to magnetize above-mentioned permanent magnetism body 14, the field pole 25 that will have high magnetic permeability and constitute, dismantled and assembled being incorporated on said fixing 20 by silicon steel.
Wherein, include in the above-mentioned field pole 25: field pole body 251; Be arranged at the both sides of above-mentioned field pole body 251, and be incorporated into the field pole guiding device 252 of the guiding groove 202 that forms in said fixing 20; Protrude from above-mentioned field pole body 251, and prolong formation, simultaneously the field pole lug boss 253 of its terminal tapered shape to the permanent magnetism body 14 of above-mentioned gyrator 10.And, be through with main induction coil 22a in the above-mentioned main induction slot 22 from the AC power making current, be through with the auxiliary induction coil 23a of the electric current of connecting above-mentioned process capacitor (not shown) in the above-mentioned auxiliary induction slot 23, then be through with magnet exciting coil 24a in above-mentioned 2 excitation slots 24.
Below, the operation principle of the self-excited machine 1 in the embodiment of the invention of as above structure is described.
Under the situation of the gyrator 10 of needs rotations self-excited machine, above-mentioned field pole guiding device 252 is inserted in the guiding groove 202 that forms in said fixing 20, thereby above-mentioned field pole 25 is fixedly set on said fixing 20.Then, when the more preceding electric current of phase place through capacitor is switched to auxiliary induction coil 23a, in the excellent conductor 13 of above-mentioned gyrator 10, will produce induced current by the electromagnetic induction rule, and under the principle of Fleming's lefft-hand rule, above-mentioned excellent conductor 13 will be subjected to active force in the magnetic field that above-mentioned auxiliary induction coil 23a produces, and will begin to be rotated.
Subsequently, when the electric current that flows in connecting than above-mentioned auxiliary induction coil 23a in above-mentioned main induction coil 22a is spent the electric current of phase places by back 90, to produce rotating magnetic field in said fixing 20, thereby make the excellent conductor 13 of above-mentioned gyrator 10 continue to be subjected to active force, and be rotated.
But,,, will magnetize above-mentioned gyrator body 12 by the magnetic field that above-mentioned main induction coil 22a and auxiliary induction coil 23a produce because above-mentioned gyrator body 12 is made of the ferromagnetism body with high magnetic permeability.Thus, above-mentioned gyrator body 12 is subjected to magnetic hysteresis moment of torsion (H) by magnetic hysteresis effect (Hysteresis Effect), and is rotated.
That is, as shown in Figure 3, above-mentioned gyrator body 12 and excellent conductor 13 will be subjected to magnetic hysteresis moment of torsion (H) and induced torque (I) respectively, and are rotated.
In the case, when the speed of above-mentioned gyrator 10 reaches synchronizing speed (3 with rotating magnetic field, when 600rpm) identical, the induced torque (I) that produces in the above-mentioned excellent conductor 13 will become 0, therefore, the speed of above-mentioned gyrator 10 will be all the time less than the synchronizing speed of rotating magnetic field, that is, and (slip) phenomenon of will sliding.
At this moment, when connecting stronger electric current for above-mentioned magnet exciting coil 24a, powerful flux by above-mentioned magnet exciting coil 24a generation, to pass to the permanent magnetism body 14 of the outer peripheral face that surrounds above-mentioned gyrator body 12 by the field pole lug boss 253 of above-mentioned field pole 25, and then will magnetize above-mentioned permanent magnetism body 14.
In the case, because above-mentioned field pole 25 is made of the ferromagnetism body with high magnetic permeability, and its terminal tapered shape structure, the flux of above-mentioned brute force will be under the situation that does not have very big loss, pass to the permanent magnetism body 14 of above-mentioned gyrator 10, and magnetize.
Thus, above-mentioned permanent magnetism body 14 will obtain magnetization and for becoming permanent magnet, thereby will be rotated along established rotating magnetic field in said fixing 20.
In the case, the rotary speed of above-mentioned gyrator 10 will increase gradually, even it is identical with the synchronizing speed of above-mentioned rotating magnetic field that above-mentioned speed reaches, because above-mentioned permanent magnet can constantly be rotated along rotating magnetic field, the revolving force of above-mentioned gyrator 10 will can not reduce.
Promptly, to carry out the rotary manipulation of 2 steps in the self-excited machine 1 of one embodiment of the invention, in the low speed step, utilize induced torque (I) and magnetic hysteresis moment of torsion (H) to be rotated, in order to make it enter into high speed step (synchronizing speed: 3,600rpm), will magnetize above-mentioned permanent magnetism body 14 by above-mentioned field pole 25, and utilize permanent magnet moment of torsion (P) to be rotated.
In the case, only need connect powerful electric current by above-mentioned magnet exciting coil 24a in the moment of the above-mentioned permanent magnetism body 14 of magnetization, thus the thermal loss that produces in the coil can reduce to connect big electric current time the etc., and can improve efficiency of motor.
Particularly, above-mentioned field pole 25 detachably is incorporated into said fixing 20, therefore, need not above-mentioned whole stator 20 is made of the ferromagnetism body with high magnetic permeability, but only needs above-mentioned field pole 25 is made of the ferromagnetism body with high magnetic permeability.And, when said fixing son 20 and gyrator 10 carry out relative motion, because the impact that applies by the outside etc., and cause under said fixing son 20 and gyrator 10 case of collision, when if above-mentioned field pole 25 is damaged, to only need to change above-mentioned field pole 25, thereby can prevent the waste on the expense.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1, a kind of self-excited machine with separated field pole is characterized in that: include following several sections:
Gyrator: it includes the gyrator body; Direction of principal axis connects the more than one excellent conductor of above-mentioned gyrator body; Surround the outer peripheral face of above-mentioned gyrator body, and the permanent magnetism body that can be magnetized;
Stator: it comprises and has the internal diameter bigger than the external diameter of gyrator, and is used to insert the hollow bulb of above-mentioned gyrator; Be arranged at inner peripheral surface, isolate near 2 excitation slots a plurality of induction slots of formation with radiation shape mutually from above-mentioned hollow bulb; In order to magnetize above-mentioned permanent magnetism body, and the dismantled and assembled field pole that is incorporated between above-mentioned 2 excitation slots;
Magnet exciting coil: it runs through above-mentioned 2 excitation slots and forms;
Induction coil: it runs through above-mentioned a plurality of induction slot and forms.
2, self-excited machine according to claim 1 is characterized in that: the tapered shape of an end of the above-mentioned field pole of the outer peripheral face of wherein said close above-mentioned gyrator forms.
3, self-excited machine according to claim 1 is characterized in that: wherein said field pole is made of the ferromagnetism body with high magnetic permeability.
4, a kind of self-excited machine with separated field pole is characterized in that: include following several sections:
Gyrator: it includes the gyrator body; Direction of principal axis connects the more than one excellent conductor of above-mentioned gyrator body; Surround the outer peripheral face of above-mentioned gyrator body, and the permanent magnetism body that can be magnetized;
Stator: it comprises and has the internal diameter bigger than the external diameter of gyrator, and is used to insert the hollow bulb of above-mentioned gyrator; Be arranged at inner peripheral surface, isolate near 2 excitation slots a plurality of induction slots of formation with radiation shape mutually from above-mentioned hollow bulb; In order to magnetize above-mentioned permanent magnetism body, and the dismantled and assembled field pole that is incorporated between above-mentioned 2 excitation slots;
Magnet exciting coil: it runs through above-mentioned 2 excitation slots and forms;
The main induction coil: it runs through a plurality of main induction slots and forms;
Auxiliary induction coil: it runs through a plurality of auxiliary induction slots and forms, and connects the alternating current with phase place more forward than the phase place of the alternating current of connecting in the above-mentioned main induction coil.
5, self-excited machine according to claim 4 is characterized in that: the tapered shape of an end of the above-mentioned field pole of the outer peripheral face of wherein said close above-mentioned gyrator forms.
6, self-excited machine according to claim 4 is characterized in that: wherein said field pole is made of the ferromagnetism body with high magnetic permeability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016184 CN1967982A (en) | 2005-11-18 | 2005-11-18 | Self-excitation TV with separated field pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016184 CN1967982A (en) | 2005-11-18 | 2005-11-18 | Self-excitation TV with separated field pole |
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| Publication Number | Publication Date |
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| CN1967982A true CN1967982A (en) | 2007-05-23 |
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| CN 200510016184 Pending CN1967982A (en) | 2005-11-18 | 2005-11-18 | Self-excitation TV with separated field pole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005217B (en) * | 2005-12-29 | 2012-04-11 | Lg电子株式会社 | Self-magnetized motor and stator structure thereof |
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2005
- 2005-11-18 CN CN 200510016184 patent/CN1967982A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101005217B (en) * | 2005-12-29 | 2012-04-11 | Lg电子株式会社 | Self-magnetized motor and stator structure thereof |
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