CN205622451U - Segmentation stator group, motor and compressor - Google Patents
Segmentation stator group, motor and compressor Download PDFInfo
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- CN205622451U CN205622451U CN201620128111.5U CN201620128111U CN205622451U CN 205622451 U CN205622451 U CN 205622451U CN 201620128111 U CN201620128111 U CN 201620128111U CN 205622451 U CN205622451 U CN 205622451U
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Abstract
The utility model provides a segmentation stator group, motor and compressor, segmentation stator group is including a n stator (A), the electromagnetic field that produces during the drive of i stator for the electromagnetic field angular discrepancy (img file='DDA0000925749200000011. TIF'wi='923'he='131' /) of an i+1 stator wherein, i=1, 2, 3... N 1 in any numerical value, Z1 is the motor stator number of slots, N is the stator number of motor, P is the number of pole -pairs of motor. The utility model provides a segmentation stator group, was the drive phase place angle that i+1 overlaps the stator ( theta when an i stator drove phase place angle theta with breakdown torque electric current angle or ( theta + beta ) beta ), using the invertion power supply drive and having the above -mentioned motor of segmenting stator group, make the electromagnetic field in the motor form oblique polar effect, the humorous torque peak that involves of every section stator production misplaces mutually, and then reaches the effect of effectively falling low -harmonic -wave and torque ripple, reduces the vibration and the noise of motor.
Description
Technical field
This utility model relates to motor device technical field, particularly to a kind of sectionalized stator group, motor and compressor.
Background technology
Along with user's raising to quiet demand, increasing motor has noise reduction demand.
At present, the noise that the noise of motor is mainly produced by motor torque ripple and vibration.Common noise reduction technology has skewed-rotor, skewed stator slot, stator teeth to offer auxiliary tank or rotor magnetic pole bias etc..
But, the technics comparing that above-mentioned technology weakens torque pulsation is complicated, and difficulty of processing is relatively big, has a strong impact on the effect reducing torque pulsation, and then affects noise reduction.
Therefore, how to reduce harmonic wave and torque pulsation, reduce vibration and noise, be those skilled in the art's problem demanding prompt solution.
Utility model content
In view of this, this utility model provides a kind of sectionalized stator group, to reduce harmonic wave and torque pulsation, reduces vibration and noise.This utility model additionally provides a kind of motor with above-mentioned sectionalized stator group and compressor.
In order to achieve the above object, the following technical scheme of this utility model offer:
A kind of sectionalized stator group, it is characterised in that include n stator；
The electromagnetic field produced when i-th stator drives is relative to the electromagnetic field angular deviation of i+1 stator
Wherein, i=1,2,3 ... any one numerical value in n-1；
Z1 is motor stator slot number；
N is the stator number of motor；
P is the number of pole-pairs of motor.
Preferably, in above-mentioned sectionalized stator group, the tooth space centerline alignment of each described stator.
Preferably, in above-mentioned sectionalized stator group, between the tooth space centerline of adjacent two described stators, there is angle α, wherein,
Preferably, in above-mentioned sectionalized stator group, in spacing L of adjacent two described stators, it is filled with non-magnet material.
This utility model additionally provides a kind of motor, including rotor part, also includes the sectionalized stator group as described in above-mentioned any one.
Preferably, in above-mentioned motor, described rotor part is segmented rotor group, and it has n rotor and arranges with n stator one_to_one corresponding.
Preferably, in above-mentioned motor, in the gap of adjacent two described rotors, it is filled with non-magnet material.
Preferably, in above-mentioned motor, the power supply of described motor is n 2 grades of inverters.
Preferably, in above-mentioned motor, the power supply of described motor is multistage inverter.
This utility model additionally provides a kind of compressor, and including motor, described motor is the motor as described in above-mentioned any one.
The sectionalized stator group that this utility model provides, when i-th stator drives phase angle θ with torque capacity electric current angle, the driving phase angle of i+1 set stator is (θ-β) or (θ+β).Application inverter drives the motor with above-mentioned sectionalized stator group, the electromagnetic field in motor is made to form oblique polar effect, the harmonic wave of every section of stator generation and torque peak sequence, and then reach effectively to reduce the effect of harmonic wave and torque pulsation, reduce vibration and the noise of motor.
This utility model embodiment additionally provides a kind of motor with above-mentioned sectionalized stator group and compressor.Owing to above-mentioned sectionalized stator group has above-mentioned technique effect, there is the motor with above-mentioned sectionalized stator group and compressor have as technique effect, the most tired at this state.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the motor that Fig. 1 provides for this utility model embodiment；
The structural representation of the electromagnetic field angular deviation of the sectionalized stator group that Fig. 2 provides for this utility model embodiment；
The structural representation of the torque pulse of the sectionalized stator group that Fig. 3 provides for this utility model embodiment.
Detailed description of the invention
This utility model provides a kind of sectionalized stator group, to reduce harmonic wave and torque pulsation, reduces vibration and noise.This utility model additionally provides a kind of motor with above-mentioned sectionalized stator group and compressor.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to the structural representation of the motor that Fig. 1 and Fig. 2, Fig. 1 provide for this utility model embodiment；The structural representation of the electromagnetic field angular deviation of the sectionalized stator group that Fig. 2 provides for this utility model embodiment.
This utility model embodiment provides a kind of sectionalized stator group, it is characterised in that include n stator A；The electromagnetic field produced when i-th stator drives is relative to the electromagnetic field angular deviation of i+1 statorWherein, i=1,2 ... any one numerical value in n-1；Z1 is motor stator slot number；N is the stator number of motor；P is the number of pole-pairs of motor.
The sectionalized stator group that this utility model embodiment provides, when i-th stator drives phase angle θ with torque capacity electric current angle, the driving phase angle of i+1 set stator is (θ-β) or (θ+β).Application inverter drives the motor with above-mentioned sectionalized stator group, the electromagnetic field in motor is made to form oblique polar effect, the harmonic wave of each stator A generation and torque peak sequence, and then reach effectively to reduce the effect of harmonic wave and torque pulsation, reduce vibration and the noise of motor.
As a example by the sectionalized stator group of two stator A compositions, as it is shown on figure 3, the output torque pulsation curve of first stator is c curve, the output torque pulsation curve of second stator is b curve.In the synthesis output torque pulsation curve a of first stator and second stator, the crest of c curve and b curve is cancelled out each other with valley value, effectively reduces the pulsating quantity of motor, and concrete numerical value refers to following table:
1 two sections of stator torque pulsation contrasts of table
As seen from the above table, the synthesis output torque pulsation ratio of first stator and second stator substantially reduces, and then effectively reduces vibration and the noise of motor.
Preferably, assemble for convenience, the tooth space centerline alignment of each stator A.I.e., it is ensured that the teeth portion of n stator does not misplaces so that the tooth space centerline alignment of each stator A.That is, by by drive motor variable-frequency power sources corresponding for stator A between phase angle between deviation be β.
In the second embodiment, between the tooth space centerline of adjacent two stator A, there is angle α, wherein,There is not deviation at phase angle between each variable-frequency power sources corresponding for stator A.Preferably, the phase angle of variable-frequency power sources is all torque capacity electric current angle.By above-mentioned setting, it is simple to the outfit of power supply.
In the present embodiment, according to the difference of loading demand, the i-th stator A independent operating of correspondence can be selected, it is also possible to select n stator A to be operated together.
Separate for guaranteeing n stator A, it is ensured that motor safety runs, and spacing L of adjacent two stator A meets electrical safety clearance requirement.Further, it is filled with non-magnet material in spacing L of adjacent two stator A.Preferably, in non-magnet material is filled in the rotor magnetic steel groove that spacing L of adjacent two stator A is corresponding.
This utility model additionally provides a kind of motor, including rotor part, also includes such as any one sectionalized stator group above-mentioned.Owing to above-mentioned sectionalized stator group has above-mentioned technique effect, the motor with above-mentioned sectionalized stator group also should have same technique effect, tires out the most one by one at this and states.
Further, as a example by two stator A of a rotor, in motor operation course, the most a set of stator runs with rotor combination, another set of stator and the dragged rotation of rotor combination, the magnetic linkage of controller real time scan motor, and whether monitoring stator breaks down with rotor.It is used alternatingly by 1 rotor of n stator, effectively extends the service life of motor.Further, when a stator A damages, it is also possible to use another standby stator A to use.
In order to reduce the cost of motor, rotor part is segmented rotor group, and it has n rotor and arranges with n stator A one_to_one corresponding.One rotor can also be only set.
Preferably, it is filled with non-magnet material in the gap of adjacent two rotors, in order to guarantee the security performance that motor runs.
In the present embodiment, the power supply of motor is n 2 grades of inverters.By making n 2 grades of inverters arrange with n stator A one_to_one corresponding, the operation to single stator A can be reached, it is also possible to realize being operated together of multiple stator A, it is simple to the switching of stator A.
In order to reduce amount of parts, simplifying the structure of motor, the power supply of motor is multistage inverter.By above-mentioned setting, effectively reduce the cost of motor.
This utility model embodiment additionally provides a kind of compressor, including any one motor the most above-mentioned.Owing to above-mentioned motor has above-mentioned technique effect, the compressor with above-mentioned motor also should have same technique effect, tires out the most one by one at this and states.
Certainly, above-mentioned motor can also be applied to other to be needed on the efficient permanent magnet motor of noise-and-vibration-reduction, is not particularly limited at this and all within protection domain.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a sectionalized stator group, it is characterised in that include n stator (A)；
The electromagnetic field produced when i-th stator drives is relative to the electromagnetic field angular deviation of i+1 stator
Wherein, i=1,2,3 ... any one numerical value in n-1；
Z1 is motor stator slot number；
N is the stator number of motor；
P is the number of pole-pairs of motor.
Sectionalized stator group the most according to claim 1, it is characterised in that the tooth space centerline alignment of each described stator (A).
Sectionalized stator group the most according to claim 1, it is characterised in that between the tooth space centerline of adjacent two described stators (A), there is angle α, wherein,
4. according to the sectionalized stator group described in any one of claim 1-3, it is characterised in that be filled with non-magnet material in spacing L of adjacent two described stators (A).
5. a motor, including rotor part, it is characterised in that also include the sectionalized stator group as described in any one of claim 1-4.
Motor the most according to claim 5, it is characterised in that described rotor part is segmented rotor group, it has n rotor and arranges with n stator (A) one_to_one corresponding.
Motor the most according to claim 6, it is characterised in that be filled with non-magnet material in the gap of adjacent two described rotors.
8. according to the motor described in any one of claim 5-7, it is characterised in that the power supply of described motor is n 2 grades of inverters.
9. according to the motor described in any one of claim 5-7, it is characterised in that the power supply of described motor is multistage inverter.
10. a compressor, including motor, it is characterised in that described motor is the motor as described in any one of claim 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128111.5U CN205622451U (en) | 2016-02-18 | 2016-02-18 | Segmentation stator group, motor and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128111.5U CN205622451U (en) | 2016-02-18 | 2016-02-18 | Segmentation stator group, motor and compressor |
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| CN205622451U true CN205622451U (en) | 2016-10-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553206A (en) * | 2016-02-18 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Sectionalized stator group, motor and compressor |
| CN106329766A (en) * | 2016-10-19 | 2017-01-11 | 清华大学 | Turbine generator with rotor arrangement capable of weakening polar frequency vibration winding |
| CN110361678A (en) * | 2019-07-22 | 2019-10-22 | 福州泰全工业有限公司 | A kind of oblique polar angle measurement method of brushless electric motor rotor based on magnetic flux density |
-
2016
- 2016-02-18 CN CN201620128111.5U patent/CN205622451U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553206A (en) * | 2016-02-18 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Sectionalized stator group, motor and compressor |
| CN105553206B (en) * | 2016-02-18 | 2024-07-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmented stator set, motor and compressor |
| CN106329766A (en) * | 2016-10-19 | 2017-01-11 | 清华大学 | Turbine generator with rotor arrangement capable of weakening polar frequency vibration winding |
| CN106329766B (en) * | 2016-10-19 | 2020-05-22 | 清华大学 | Turbo generator with rotor arranged with weakening polar frequency vibration winding |
| CN110361678A (en) * | 2019-07-22 | 2019-10-22 | 福州泰全工业有限公司 | A kind of oblique polar angle measurement method of brushless electric motor rotor based on magnetic flux density |
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