CN105490485A - Single-phase asynchronous motor - Google Patents
Single-phase asynchronous motor Download PDFInfo
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- CN105490485A CN105490485A CN201410548330.4A CN201410548330A CN105490485A CN 105490485 A CN105490485 A CN 105490485A CN 201410548330 A CN201410548330 A CN 201410548330A CN 105490485 A CN105490485 A CN 105490485A
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- stator
- rotor
- teeth
- asynchronous motor
- rotor core
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Abstract
The invention discloses a single-phase asynchronous motor. The single-phase asynchronous motor comprises a stator and a rotor, wherein the stator comprises a stator yoke part and a stator tooth part, the rotor is arranged in the stator tooth part, and a plurality of teeth are uniformly arranged on the stator tooth part along a circumferential direction and are in one-to-one correspondence to grooves arranged at an inner part of the stator yoke part; when AC current passes through a stator winding, single-phase AC current is introduced to a single-phase AC winding to generate a pulse vibration magnetomotive force, the magnetomotive force can be decomposed into two rotation magnetomotive force sums which are equal in amplitude and opposite in rotational speed, so that the sum of a positive rotation magnetic field and a reverse rotation magnetic field is built in an air gap; the two magnetic fields cut a rotor conductor and respectively generate induced electromotive force and induced current in the rotor conductor, and the current and the magnetic fields acts with each other to generate a positive electromagnetic torque and a reverse electromagnetic torque; and the positive electromagnetic torque attempts to make the rotor positively rotated, the reverse electromagnetic torque attempts to make the rotor reversely rotated, and the sum of the two torques laminated is a synthesized torque for pushing the motor to rotate.
Description
Technical field
The present invention relates to a kind of monopole asynchronous motor.
Background technology
Current monopole asynchronous motor can be divided into shaded-pole and the large class of split-phase type two by starting pinciple, but because split-phase type monopole asynchronous motor is compared with shaded-pole monopole asynchronous motor, its manufacture craft bothers, price is more expensive, and the shortcoming such as operation and maintenance is inconvenient, make the use occasion of split-phase type monopole asynchronous motor by the replacement slowly of shaded-pole monopole asynchronous motor, but in existing technology, shaded-pole monopole asynchronous motor is a complete entirety, in the fabrication process, there is manufacturing process complexity, inefficiency, rate of finished products is not high, particularly the raw-material utilance such as enamel covered wire is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structure by changing original nail and boosts productivity and property indices, saves raw material, reduces the monopole asynchronous motor of the manufacturing cost of monopole asynchronous motor.
For solving the problem, the present invention adopts following technical scheme: a kind of monopole asynchronous motor of the present invention, comprise stators and rotators, described stator is made up of stator yoke and stator teeth two parts, described rotor is arranged in stator teeth, described stator teeth along the circumferential direction evenly arranges several teeth, described stator teeth is provided with coil, the inner ring position of described stator yoke is provided with groove, the groove one_to_one corresponding that the inner ring position of several teeth that described stator teeth is along the circumferential direction evenly arranged and stator yoke is provided with, the increment of each tooth is entrenched in corresponding groove respectively.
As preferred technical scheme, described stator increment is swallow-tail form, corresponding groove is also in swallow-tail form, on several teeth that described stator teeth is along the circumferential direction evenly arranged, cover has insulation coil holder, described insulation coil holder is provided with coil, tooth is provided with near the position of increment play the role of positioning from catching groove, be provided with the catching groove played the role of positioning between two grooves adjacent in stator yoke.
As preferred technical scheme, described rotor is by rotating shaft, rotor core and rotor windings three part composition, described rotor core is formed by stacking by the silicon steel sheet that some shapes are identical, rotating shaft is positioned at rotor core central authorities, aluminium ring is provided with in rotor core both sides, described rotor core is a part for motor magnetic circuit, it and stator core have certain gap, rotor core is the same with stator core, also be by certain thickness silicon steel sheet jet-bedding be coated with insulating varnish form through superzapping between sheet outside, described rotor windings embeds in groove, described rotating shaft is in order to support rotor iron core, to bear larger torque, every sheet silicon steel sheet of described rotor core arranges gap uniformly.
As preferred technical scheme, the tooth root between two teeth adjacent on described stator teeth disconnects mutually, concentrates to prevent the stress of the contact between coil and generation.
The beneficial effect of a kind of monopole asynchronous motor of the present invention is: when stator winding is by alternating current, single phase alternating current (A.C.) winding passes into single phase alternating current (A.C.) and produces pulsating mmf, this magnetomotive force can be analyzed to two rotating mmfs that amplitude is equal, rotating speed is contrary and, thus in air gap set up rotate and reverse magnetic field and, these two rotating magnetic field cutting rotor conductors, and in rotor conductor, produce induced electromotive force and induced current respectively, this electric current and magnetic field interaction produce positive and negative electromagnetic torque, and the attempt of forward electromagnetic torque makes rotor rotate forward; Reverse electromagnetic torque attempt makes rotor reverse, and it is exactly the synthesis torque promoting motor rotation that these two torques stack up.
Accompanying drawing explanation
For ease of illustrating, the present invention is described in detail by following specific embodiment and accompanying drawing.
Fig. 1 is the structural representation of a kind of monopole asynchronous motor of the present invention;
Fig. 2 is the structural representation of the stator yoke of a kind of monopole asynchronous motor of the present invention;
Fig. 3 is the structural representation of the rotor of a kind of monopole asynchronous motor of the present invention;
Fig. 4 be a kind of monopole asynchronous motor of the present invention around insulation coil holder on stator winding;
Fig. 5 is the stator teeth structural representation of a kind of monopole asynchronous motor of the present invention;
Fig. 6 is the outline drawing of a kind of monopole asynchronous motor of the present invention.
Embodiment
As shown in Figure 1, a kind of monopole asynchronous motor of the present invention, comprise stator 1 and rotor 2, described stator 1 is made up of stator yoke 3 and stator teeth 4 two parts, described rotor 2 is arranged in stator teeth 4, described stator teeth 4 along the circumferential direction evenly arranges several teeth 5, described stator teeth 4 is provided with coil 6, the inner ring position of described stator yoke 3 is provided with groove 7, groove 7 one_to_one corresponding that several teeth 5 that described stator teeth 4 is along the circumferential direction evenly arranged are provided with the inner ring position of stator yoke 3, the increment 8 of each tooth 5 is entrenched in corresponding groove 7 respectively.
Further, in alternating current machine, when stator winding is by alternating current, establish armature magnetomotive force, it all has a significant impact motor power conversion and runnability, so single phase alternating current (A.C.) winding passes into single phase alternating current (A.C.) produce pulsating mmf, it is equal that this magnetomotive force can be analyzed to two amplitudes, the contrary rotating mmf of rotating speed and, thus in air gap set up rotate and reverse magnetic field and, these two rotating magnetic field cutting rotor conductors, and in rotor conductor, produce induced electromotive force and induced current respectively, this electric current and magnetic field interaction are just producing, anti-electromagnetic torque, forward electromagnetic torque makes rotor rotate forward, reverse electromagnetic torque makes rotor reverse, and it is exactly the synthesis torque promoting motor rotation that these two torques stack up, monopole asynchronous motor is a class motor of powering by 220V single phase alternating current power supply, in the back yard industry equipment that it is applicable to only have single phase poaer supply and household electrical appliance.
Described stator increment 8 is in swallow-tail form, corresponding groove 7 is also in swallow-tail form, on several teeth 5 that described stator teeth 4 is along the circumferential direction evenly arranged, cover has insulation coil holder 9, described insulation coil holder 9 is provided with coil 6, tooth is provided with near the position of increment 8 play the role of positioning from catching groove 10, be provided with the catching groove 11 played the role of positioning between two grooves 7 adjacent in stator yoke 3.
Described rotor 2 is by rotating shaft 12, rotor core 13 and rotor windings 14 3 part composition, described rotor core 13 is formed by stacking by the silicon steel sheet that some shapes are identical, rotating shaft 12 is positioned at rotor core 13 central authorities, aluminium ring is provided with in rotor core 13 both sides, described rotor core 13 is parts of motor magnetic circuit, it and stator core have certain gap, rotor core 13 is the same with stator core 2, also be by certain thickness silicon steel sheet jet-bedding be coated with insulating varnish form through superzapping between sheet outside, described rotor windings 14 embeds in groove, described rotating shaft 12 is in order to support rotor iron core 13, to bear larger torque, every sheet silicon steel sheet of described rotor core 13 arranges gap 15 uniformly.
Tooth root 16 between two teeth adjacent on described stator teeth 4 disconnects mutually, concentrates to prevent the stress of the contact between coil 6 and generation.
A kind of monopole asynchronous motor of the present invention has the following advantages: when stator winding is by alternating current, single phase alternating current (A.C.) winding passes into single phase alternating current (A.C.) and produces pulsating mmf, this magnetomotive force can be analyzed to two rotating mmfs that amplitude is equal, rotating speed is contrary and, thus in air gap set up rotate and reverse magnetic field and, these two rotating magnetic field cutting rotor conductors, and in rotor conductor, produce induced electromotive force and induced current respectively, this electric current and magnetic field interaction produce positive and negative electromagnetic torque, and the attempt of forward electromagnetic torque makes rotor rotate forward; Reverse electromagnetic torque attempt makes rotor reverse, it is exactly the synthesis torque promoting motor rotation that these two torques stack up, it is boosted productivity and property indices by the structure changing original nail, save raw material, reduce the monopole asynchronous motor of the manufacturing cost of monopole asynchronous motor.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (4)
1. a monopole asynchronous motor, comprise stators and rotators, it is characterized in that: described stator is made up of stator yoke and stator teeth two parts, described rotor is arranged in stator teeth, described stator teeth along the circumferential direction evenly arranges several teeth, described stator teeth is provided with coil, the inner ring position of described stator yoke is provided with groove, the groove one_to_one corresponding that the inner ring position of several teeth that described stator teeth is along the circumferential direction evenly arranged and stator yoke is provided with, the increment of each tooth is entrenched in corresponding groove respectively.
2. monopole asynchronous motor according to claim 1, it is characterized in that: described stator increment is swallow-tail form, corresponding groove is also in swallow-tail form, on several teeth that described stator teeth is along the circumferential direction evenly arranged, cover has insulation coil holder, described insulation coil holder is provided with coil, tooth is provided with near the position of increment play the role of positioning from catching groove, be provided with the catching groove played the role of positioning between two grooves adjacent in stator yoke.
3. monopole asynchronous motor according to claim 1, it is characterized in that: described rotor is by rotating shaft, rotor core and rotor windings three part composition, described rotor core is formed by stacking by the silicon steel sheet that some shapes are identical, rotating shaft is positioned at rotor core central authorities, aluminium ring is provided with in rotor core both sides, described rotor core is a part for motor magnetic circuit, it and stator core have certain gap, rotor core is the same with stator core, also be by certain thickness silicon steel sheet jet-bedding be coated with insulating varnish form through superzapping between sheet outside, described rotor windings embeds in groove, described rotating shaft is in order to support rotor iron core, to bear larger torque, every sheet silicon steel sheet of described rotor core arranges gap uniformly.
4. monopole asynchronous motor according to claim 1, is characterized in that: the tooth root between two teeth adjacent on described stator teeth disconnects mutually, concentrates to prevent the stress of the contact between coil and generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548330.4A CN105490485A (en) | 2014-10-13 | 2014-10-13 | Single-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548330.4A CN105490485A (en) | 2014-10-13 | 2014-10-13 | Single-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105490485A true CN105490485A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410548330.4A Pending CN105490485A (en) | 2014-10-13 | 2014-10-13 | Single-phase asynchronous motor |
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| Country | Link |
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| CN (1) | CN105490485A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164645A (en) * | 2018-02-14 | 2019-08-23 | 熵零技术逻辑工程院集团股份有限公司 | A kind of electromagnetic structure body |
-
2014
- 2014-10-13 CN CN201410548330.4A patent/CN105490485A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164645A (en) * | 2018-02-14 | 2019-08-23 | 熵零技术逻辑工程院集团股份有限公司 | A kind of electromagnetic structure body |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |
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| WD01 | Invention patent application deemed withdrawn after publication |