CN105553206A - Sectionalized stator group, motor and compressor - Google Patents
Sectionalized stator group, motor and compressor Download PDFInfo
- Publication number
- CN105553206A CN105553206A CN201610091911.9A CN201610091911A CN105553206A CN 105553206 A CN105553206 A CN 105553206A CN 201610091911 A CN201610091911 A CN 201610091911A CN 105553206 A CN105553206 A CN 105553206A
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- Prior art keywords
- stator
- motor
- sectionalized
- group
- electromagnetic field
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- 230000005672 electromagnetic field Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 13
- 230000010349 pulsation Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
- H02K21/029—Vectorial combination of the fluxes generated by a plurality of field sections or of the voltages induced in a plurality of armature sections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a sectionalized stator group, a motor and a compressor. The sectionalized stator group comprises n stators (A); and the angular deviation of an electromagnetic field generated when driving of the i(th) stator relative to an electromagnetic field of the (i+1)th stator is Beta shown as the specification, wherein i is an arbitrary numerical value from 1, 2, 3 until (n-1), Z1 is the slot number of the motor stator, n is the number of motor stator, and p is pole pairs of the motor. In the sectionalized stator group, the driving phase angle of the (i+1) set of stators is (Theta-Beta) or (Theta+Beta) when the phase angle Theta is driven by the (i+1) stator with the maximum torque current angle; and an inversion power supply is used for driving the motor provided with the above sectionalized stator group, so that the electromagnetic field in the motor forms an oblique pole effect, the harmonic wave generated by each section of stator is not matched with a torque peak, the effect of effectively reducing harmonic wave and torque pulse is further achieved, and the vibration and the noise of the motor are reduced.
Description
Technical field
The present invention relates to motor device technical field, particularly a kind of sectionalized stator group, motor and compressor.
Background technology
Along with user is to the raising of quiet demand, increasing motor has noise reduction demand.
At present, the noise of motor is primarily of motor torque ripple and the noise vibrating generation.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, difficulty of processing is comparatively large, has a strong impact on the effect reducing torque pulsation, and then affects noise reduction.
Therefore, how to reduce and humorously involve torque pulsation, reducing vibration and noise, is the art personnel problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of sectionalized stator group, humorously involve torque pulsation to reduce, reduce vibration and noise.Present invention also offers a kind of motor and the compressor with above-mentioned sectionalized stator group.
In order to achieve the above object, the invention provides following technical scheme:
A kind of sectionalized stator group, is characterized in that, comprise n stator;
The electromagnetic field that i-th stator produces when driving is relative to the electromagnetic field angular deviation of the i-th+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 the spacing L of adjacent two described stators, be filled with non-magnet material.
Present invention also offers a kind of motor, comprise rotor part, also comprise 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, non-magnet material after filling in the gap of adjacent two described rotors.
Preferably, in above-mentioned motor, power supply n 2 grades of inverters of described motor.
Preferably, in above-mentioned motor, the power supply of described motor is multistage inverter.
Present invention also offers a kind of compressor, comprise motor, described motor is the motor as described in above-mentioned any one.
Sectionalized stator group provided by the invention, when i-th stator drives phase angle θ with breakdown torque electric current angle, the driving phase angle of the i-th+1 cover 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 humorous of every section of stator generation involves torque peak sequence, and then reaches the effectively humorous effect involving torque pulsation of reduction, reduces vibration and the noise of motor.
The embodiment of the present invention additionally provides a kind of motor and the compressor with above-mentioned sectionalized stator group.Because above-mentioned sectionalized stator group has above-mentioned technique effect, have, with the motor of above-mentioned sectionalized stator group and compressor, there is same technique effect, tire out no longer one by one at this and state.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the motor that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the electromagnetic field angular deviation of the sectionalized stator group that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the torque pulse of the sectionalized stator group that Fig. 3 provides for the embodiment of the present invention.
Embodiment
The invention provides a kind of sectionalized stator group, humorously involve torque pulsation to reduce, reduce vibration and noise.Present invention also offers a kind of motor and the compressor with above-mentioned sectionalized stator group.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1 and Fig. 2, the structural representation of the motor that Fig. 1 provides for the embodiment of the present invention; The structural representation of the electromagnetic field angular deviation of the sectionalized stator group that Fig. 2 provides for the embodiment of the present invention.
Embodiments provide a kind of sectionalized stator group, it is characterized in that, comprise n stator A; The electromagnetic field that i-th stator produces when driving is relative to the electromagnetic field angular deviation of the i-th+1 stator
wherein, 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 the embodiment of the present invention provides, when i-th stator drives phase angle θ with breakdown torque electric current angle, the driving phase angle of the i-th+1 cover 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, each the humorous of stator A generation involves torque peak sequence, and then reaches the effectively humorous effect involving torque pulsation of reduction, reduces vibration and the noise of motor.
For the sectionalized stator group that two stator A form, as shown in Figure 3, the Driving Torque pulsation curves of first stator is c curve, and the Driving Torque pulsation curves of second stator is b curve.In the synthesis Driving Torque pulsation curves a of first stator and second stator, crest and the trough value of c curve and b curve are cancelled out each other, and effectively reduce the pulsating quantity of motor, concrete numerical value refers to following table:
Table 1 two sections of stator torque pulsation contrasts
As seen from the above table, the synthesis Driving Torque ratio of pulsing of first stator and second stator obviously reduces, and then effectively reduces vibration and the noise of motor.
Preferably, conveniently assemble, the tooth space centerline alignment of each stator A.That is, ensure that the teeth portion of n stator does not misplace, the tooth space centerline of each stator A is alignd.That is, be β by the deviation between the phase angle between variable frequency power supply corresponding to the stator A by drive motors.
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 the variable frequency power supply that each stator A is corresponding.Preferably, the phase angle of variable frequency power supply is all breakdown torque electric current angle.By above-mentioned setting, be convenient to the outfit of power supply.
In the present embodiment, according to the difference of loading demand, i-th corresponding stator A independent operating can be selected, n stator A also can be selected jointly to run.
Separate for guaranteeing n stator A, ensure that motor safety runs, the spacing L of adjacent two stator A meets electrical safety clearance requirement.Further, non-magnet material is filled with in the spacing L of adjacent two stator A.Preferably, non-magnet material is filled in rotor magnetic steel groove corresponding to the spacing L of adjacent two stator A.
Present invention also offers a kind of motor, comprise rotor part, also comprise as any one sectionalized stator group above-mentioned.Because 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 no longer one by one state at this.
Further, for a rotor two stator A, in motor operation course, wherein a set of stator and rotor combination run, and another set of stator and rotor combination are dragged rotation, the magnetic linkage of controller real time scan motor, and whether monitoring stator and rotor break down.Be used alternatingly by n stator 1 rotor, effectively extend the useful life of motor.Further, when a stator A damages, the stator A that another can also be used for subsequent use uses.
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.Also a rotor can be only set.
Preferably, non-magnet material after filling in the gap of adjacent two rotors, so that guarantee the security performance that motor runs.
In the present embodiment, power supply n 2 grades of inverters of motor.By making n 2 grades of inverters and n stator A one_to_one corresponding arrange, the operation to single stator A can be reached, also can realize the common operation of multiple stator A, be convenient to the switching of stator A.
In order to reduce amount of parts, simplify the structure of motor, the power supply of motor is multistage inverter.By above-mentioned setting, effectively reduce the cost of motor.
The embodiment of the present invention additionally provides a kind of compressor, comprises as any one motor above-mentioned.Because above-mentioned motor has above-mentioned technique effect, the compressor with above-mentioned motor also should have same technique effect, tires out no longer one by one state at this.
Certainly, above-mentioned motor also can be applied to other to be needed on the efficient permanent magnet motor of noise-and-vibration-reduction, does not do concrete restriction and all within protection range at this.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a sectionalized stator group, is characterized in that, comprises n stator (A);
The electromagnetic field that i-th stator produces when driving is relative to the electromagnetic field angular deviation of the i-th+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.
2. sectionalized stator group according to claim 1, is characterized in that, the tooth space centerline alignment of each described stator (A).
3. sectionalized stator group according to claim 1, is characterized in that, has angle α between the tooth space centerline of adjacent two described stators (A), wherein,
4. the sectionalized stator group according to any one of claim 1-3, is characterized in that, is filled with non-magnet material in the spacing L of adjacent two described stators (A).
5. a motor, comprises rotor part, it is characterized in that, also comprises the sectionalized stator group as described in any one of claim 1-4.
6. motor according to claim 5, is characterized in that, described rotor part is segmented rotor group, and it has n rotor and arranges with n stator (A) one_to_one corresponding.
7. motor according to claim 6, is characterized in that, non-magnet material after filling in the gap of adjacent two described rotors.
8. the motor according to any one of claim 5-7, is characterized in that, power supply n 2 grades of inverters of described motor.
9. the motor according to any one of claim 5-7, is characterized in that, the power supply of described motor is multistage inverter.
10. a compressor, comprises motor, it is characterized 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 |
|---|---|---|---|
| CN201610091911.9A CN105553206B (en) | 2016-02-18 | 2016-02-18 | Segmented stator set, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091911.9A CN105553206B (en) | 2016-02-18 | 2016-02-18 | Segmented stator set, motor and compressor |
Publications (2)
| Publication Number | Publication Date |
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| CN105553206A true CN105553206A (en) | 2016-05-04 |
| CN105553206B CN105553206B (en) | 2024-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610091911.9A Active CN105553206B (en) | 2016-02-18 | 2016-02-18 | Segmented stator set, motor and compressor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128801Y (en) * | 1992-10-09 | 1993-03-24 | 沈太福 | Stepless speed regulating squirrel-cage motor |
| US20080098588A1 (en) * | 2006-10-26 | 2008-05-01 | Ronald Dean Bremner | Control of a dual rotor electromagnetic machine |
| CN101304203A (en) * | 2007-05-09 | 2008-11-12 | 李其忠 | Phase-moving flow-changing type asynchronization speed-regulating motor |
| CN101355281A (en) * | 2008-03-10 | 2009-01-28 | 江苏大学 | Method for analyzing magnetic field equivalent air gap virtual winding current of non-bearings electric machine |
| CN205622451U (en) * | 2016-02-18 | 2016-10-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmentation stator group, motor and compressor |
-
2016
- 2016-02-18 CN CN201610091911.9A patent/CN105553206B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128801Y (en) * | 1992-10-09 | 1993-03-24 | 沈太福 | Stepless speed regulating squirrel-cage motor |
| US20080098588A1 (en) * | 2006-10-26 | 2008-05-01 | Ronald Dean Bremner | Control of a dual rotor electromagnetic machine |
| CN101304203A (en) * | 2007-05-09 | 2008-11-12 | 李其忠 | Phase-moving flow-changing type asynchronization speed-regulating motor |
| CN101355281A (en) * | 2008-03-10 | 2009-01-28 | 江苏大学 | Method for analyzing magnetic field equivalent air gap virtual winding current of non-bearings electric machine |
| CN205622451U (en) * | 2016-02-18 | 2016-10-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmentation stator group, motor and compressor |
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| CN105553206B (en) | 2024-07-05 |
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