CN104242497A - Compressor - Google Patents
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- CN104242497A CN104242497A CN201410378209.1A CN201410378209A CN104242497A CN 104242497 A CN104242497 A CN 104242497A CN 201410378209 A CN201410378209 A CN 201410378209A CN 104242497 A CN104242497 A CN 104242497A
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Abstract
The invention discloses a compressor. The compressor comprises a shell, a compression mechanism and a permanent magnet synchronous motor, wherein the compression mechanism is arranged in the shell and comprises a crankshaft; the permanent magnet synchronous motor comprises a stator and a rotor; the rotor is fixed to the crankshaft; the stator comprises at least two sub-stators which arranged in the axial direction; each sub-stator comprises an iron core and multiple windings; multiple stator grooves are formed in each iron core; the windings penetrate through the stator grooves and are wound around the iron cores; the windings axially corresponding to the sub-stators are connected in parallel. According to the compressor, since the stator is assembled in a segmented mode and a parallel winding wiring mode is adopted, the inductance of the windings of the sub-stators in all layers in the space changes independently along with change of flux density of all air gap sections in the axial direction, and section-by-section correction of rotor eccentricity is realized; as a result, the purpose of correcting rotor eccentricity overall is achieved, and electromagnetic noise is lowered.
Description
Technical field
The present invention relates to art of refrigeration units, especially relate to a kind of compressor.
Background technology
Point out in correlation technique, compressor stator and main casing are fixed together, and rotor and bent axle upper end hot jacket are fixed, and bent axle lower end and base bearing, cylinder and frame are fixed together, and namely there is axial restraint the lower end of bent axle, and upper end is then in vacant state.Exactly because adopt the unidirectional fixed form of this bent axle, rotor is made just to there is certain offset in assembling process, in permagnetic synchronous motor operation process, along with electric current constantly increases, Unbalanced-magnetic-pull increases, make bent axle amount of deflection become large, rotor eccentricity aggravates, thus permagnetic synchronous motor electromagnetic noise is increased.For high-power, the permagnetic synchronous motor of Gao Jihou, stator and rotor gap uniformity is more difficult to ensure card, and permagnetic synchronous motor unilateral magnetic force is larger, and the higher problem of electromagnetic noise is more serious.
In current large-scale permagnetic synchronous motor, adopt installs induction installation more, by the mode of signal feedback, management and control is carried out to rotor eccentricity, but, for the permagnetic synchronous motor of this power grade of compressor, consider its special operational environment, current engineering does not still have effective ameliorative way to rotor eccentricity, and the problem that rotor eccentricity causes noise to exceed standard exists always.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of compressor, and described compressor effectively improves the rotor eccentricity problem of permagnetic synchronous motor, and reduces electromagnetic noise.
According to the compressor of the embodiment of the present invention, comprising: housing; Compressing mechanism, described compressing mechanism is located in described housing, and described compressing mechanism comprises bent axle; And permagnetic synchronous motor, described permagnetic synchronous motor comprises stators and rotators, described rotor and described bent axle are fixed, described stator comprises at least two the sub-stators arranged vertically, each described sub-stator comprises iron core and multiple winding, described iron core is formed with multiple stator slot, and described multiple winding is wrapped on described iron core through described multiple stator slot, the axially corresponding described winding parallel of described at least two sub-stators.
According to the compressor of the embodiment of the present invention, by carrying out block assembly to stator, and adopt the mode of winding connection in parallel, along with the change of axial each section of air gap flux density, the winding inductance of each straton stator in space changes separately, achieve the rectification piecemeal to rotor eccentricity, thus achieve on the whole to the object that rotor eccentricity is corrected, reduce electromagnetic noise simultaneously.
Alternatively, the groove area of the described stator slot of described at least two sub-stators is identical.
Particularly, the structure of the described iron core of described at least two sub-stators and the wire diameter of each described winding all identical with the number of turn.
Alternatively, the wire diameter of each described winding and the number of turn increase successively along from the side of contiguous described compressing mechanism towards the direction of the side away from described compressing mechanism respectively.
Or alternatively, the groove area of the described stator slot of described at least two sub-stators is different.
Further alternatively, the groove area of the described stator slot of described at least two sub-stators increases successively along from the side of contiguous described compressing mechanism towards the direction of the side away from described compressing mechanism.
Alternatively, edge is from the direction of side towards the side away from described compressing mechanism being close to described compressing mechanism, and the wire diameter of each described winding of described at least two sub-stators increases successively.
Or alternatively, edge is from the direction of side towards the side away from described compressing mechanism being close to described compressing mechanism, and the number of turn of each described winding of described at least two sub-stators increases successively.
Further, described rotor comprises at least two the sub-rotors arranged vertically, and the axial restraint angle of described at least two sub-rotors is all identical with magnetizing direction, described at least two sub-rotors and described at least two sub-stator one_to_one corresponding.
Further, each described sub-stator also comprises: two insulating supports, and described two insulating supports are located at the axial two ends of corresponding described iron core respectively, are fixed between wherein adjacent two described sub-stators by described insulating support.
Alternatively, described rotor is located at inside or the outside of described stator.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the part sectioned view of compressor according to an embodiment of the invention;
Fig. 2 is the stereogram of the stator of the compressor shown in Fig. 1;
Fig. 3 is the winding connection figure of the sub-stator shown in Fig. 2;
Fig. 4 is the part sectioned view of compressor in accordance with another embodiment of the present invention;
Fig. 5 is the transient changing curve chart of the radial magnetic pull F that produces of the winding of the sub-stator of compressor according to the embodiment of the present invention with motor inductances L.
Reference numeral:
100: compressor;
1: housing; 2: compressing mechanism; 21: bent axle;
3: permagnetic synchronous motor; 31: stator; 32: rotor; 321: sub-rotor;
311: sub-stator; 3111: iron core; 3112: central through hole;
3121: the first windings; 3122: the second windings; 3123: the tertiary winding; 3124: the four windings;
3125: the five windings; 3126: the six windings;
3121 ': the seven winding; 3122 ': the eight winding; 3123 ': the nine winding; 3124 ': the ten winding;
3125 ': the ten one winding; 3126 ': the ten two winding.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Describe the compressor 100 according to the embodiment of the present invention below with reference to Fig. 1-Fig. 5, compressor 100 can be frequency-changeable compressor.In description below the application, be described for frequency-changeable compressor for compressor 100.Certainly, those skilled in the art will appreciate that compressor 100 can also be the compressor of other type, and be not limited to frequency-changeable compressor.
As shown in Figure 1 and Figure 4, according to the compressor 100 of the embodiment of the present invention, comprise housing 1, compressing mechanism 2 and permagnetic synchronous motor 3.In the following description, be described for concentrating volume six groove quadrupole motor for permagnetic synchronous motor 3.Be appreciated that permagnetic synchronous motor 3 can also adopt the mode of point yardage roll, and the groove number of permagnetic synchronous motor 3 and number of poles also can according to dissimilar motor adaptive change, the present invention does not make particular determination to this.
With reference to Fig. 1 and Fig. 4, compressing mechanism 2 and permagnetic synchronous motor 3 are all located in housing 1, and specifically, compressing mechanism 2 and permagnetic synchronous motor about 3 are arranged, and compressing mechanism 2 is positioned at the below of permagnetic synchronous motor 3.Compressing mechanism 2 comprises bent axle 21, and the upper end of bent axle 21 extends upwardly to the space at permagnetic synchronous motor 3 place, and is connected with the rotor 32 of permagnetic synchronous motor 3.Here, it should be noted that, other configuration example of compressing mechanism 2, if base bearing, cylinder, supplementary bearing, piston and slide plate etc. and operation principle are known by those skilled in the art, is not described in detail here.
Permagnetic synchronous motor 3 comprises stator 31 and rotor 32, in the example of Fig. 1 and Fig. 4, rotor 32 is located at the inside of stator 31, rotor 32 is fixed with bent axle 21, in other words, rotor 32 is fixed relative to bent axle 21, and rotor 32 is rotating relative to stator 31, thus rotor 32 can be with dynamic crankshaft 21 to rotate around rotation.Certainly, rotor 32 can also be located at the outside (scheming not shown) of stator 31.
Stator 31 comprises vertically (such as, above-below direction in Fig. 1 and Fig. 4) at least two sub-stators 311 arranging, every sub-stator 311 comprises iron core 3111 and multiple winding, as shown in Figure 2, iron core 3111 has the central through hole 3112 and multiple stator slot that are suitable for holding rotor 32, multiple stator slot distributes along the circumference of corresponding iron core 3111 and is communicated with central through hole 3112 respectively, and multiple winding is wrapped on this iron core 3111 through multiple stator slot.The axially corresponding winding parallel of at least two sub-stators 311.
Thus, by arranging multiple sub-stator 311, and adopt the mode of winding connection in parallel, along with the change of axial each section of air gap flux density, the winding inductance of the sub-stator 311 in each of space changes separately, thus can realize carrying out piecemeal rotor 32 bias and adjustment in real time, serve on the whole to the effect that rotor 32 bias is corrected.
Such as show two sub-stators 311 in the figure 2 example, two sub-stators about 311 are arranged, the number of the winding on two sub-stators 311 is identical, and one_to_one corresponding in the vertical direction, that is, the winding of the sub-stator 311 of top lays respectively at directly over the winding of the sub-stator 311 of below.Be appreciated that the number of sub-stator 311 can also be three, four even multiple, to have eccentricity correction effect better.
Wherein, the axially corresponding winding parallel of two sub-stators 311, two namely corresponding up and down windings adopt the mode of connection in parallel.Specifically, with reference to Fig. 2, assuming that the winding of the sub-stator 311 of top is circumferentially followed successively by the first winding 3121 to the 6th winding 3126, the winding of the sub-stator 311 of below is circumferentially followed successively by the 7th winding 3121 ' to the 12 winding 3126 ', and the first winding 3121 is corresponding up and down 3121 ' with the 7th winding, second winding 3122 is corresponding up and down 3122 ' with the 8th winding, the tertiary winding 3123 is corresponding up and down 3123 ' with the 9th winding, 4th winding 3124 is corresponding up and down 3124 ' with the tenth winding, 5th winding 3125 is corresponding up and down 3125 ' with the 11 winding, 6th winding 3126 is corresponding up and down 3126 ' with the 12 winding, during connection, by the first winding 3121 and the 7th winding 3121 ' and tie, second winding 3122 and the 8th winding 3122 ' tie, the tertiary winding 3123 and the 9th winding 3123 ' tie, 4th winding 3124 and the tenth winding 3124 ' tie, 5th winding the 3125 and the 11 winding 3125 ' tie, 6th winding the 3126 and the 12 winding 3126 ' tie, as shown in Figure 3.
In assembling process, there is certain offset in stator 31, rotor 32 gap, the side air gap flux density little due to corresponding air gap is large, the side that air gap is large is little relative to air gap flux density, permagnetic synchronous motor 3 adopts three-phase symmetric winding, when three-phase windings adopts the mode of connection in parallel, the side winding inductance that corresponding air gap flux density is large increases, input current is caused to diminish, thus make air gap side less than normal winding produce radial magnetic pull to be less than the radial magnetic pull that air gap larger side winding produces, thus stator 31, rotor 32 gap amount of unbalance can be improved.
Certain offset is just there is in initial condition rotor 32 when assembling, on the longitudinal cross-section of the compressor 100 in FIG, when supposing initial, the upper end of bent axle 21 is tilted to the left, winding distribution in composition graphs 2 and Fig. 3 and connected mode, on the left of the stator 31 supposing Fig. 1, top is the first winding 3121, below is the 7th winding 3121 ', top, right side is the 4th winding 3124, below is the tenth winding 3124 ', B1, B1', B2, B2' is respectively the air gap flux density of above-mentioned four winding correspondence positions, F1, F1', F4, F4' is respectively the radial magnetic pull that above-mentioned four windings produce, △ 1 is sub-stator 311 Unbalanced-magnetic-pull of top, △ 2 is sub-stator 311 Unbalanced-magnetic-pull of below.
With reference to Fig. 1 composition graphs 2 and Fig. 3, sub-stator 311 initial condition of top:
∵B1＞B2→F1＞F4 △1＝F1-F4；
After electrical power runs, the sub-stator 311 of top adjusts eccentric effect:
∵B1＞B2→L1＞L4→I1＜I4→F1↓&F4↑→△1↓；
Namely, air gap between rotor 32 and the first winding 3121 is less, air gap between rotor 32 and the 4th winding 3124 is larger, thus, the air gap flux density of upper left is greater than the air gap flux density of upper right, first winding 3121 inductance L 1 is greater than the 4th winding 3124 inductance L 4, the first winding 3121 input current I1 is caused to be less than the 4th winding 3124 input current I4, thus, the radial magnetic pull F1 that first winding 3121 produces is less than the radial magnetic pull F4 that the 4th winding 3124 produces, thus the sub-stator 311 Unbalanced-magnetic-pull △ 1 of top reduces, can correct the offset on rotor 32 top.
With reference to Fig. 1 composition graphs 2 and Fig. 3, sub-stator 311 initial condition of below:
∵B1'＜B2'→F1'＜F4' △2＝F4'-F1'
After electrical power runs, the sub-stator 311 of below adjusts eccentric effect:
∵B1'＜B2'→L1'＜L4'→I1'＞I4'→F1'↑&F4'↓→△2↓
Namely, air gap between rotor 32 and the 7th winding 3121 ' is larger, air gap between rotor 32 and the tenth winding 3124 ' is less, thus, the air gap flux density of lower left is less than the air gap flux density of lower right, 7th winding 3121 ' inductance L 1' is less than the tenth winding 3124 ' inductance L 4', the 7th winding 3121 input current I1' is caused to be greater than the tenth winding 3124 input current I4', thus, the radial magnetic pull F1' that 7th winding 3121 ' produces is greater than the radial magnetic pull F4' that the tenth winding 3124 ' produces, thus the sub-stator 311 Unbalanced-magnetic-pull △ 2 of below reduces, can correct the offset of rotor 32 bottom.
Fig. 5 is the transient changing curve of inductance L and radial magnetic pull F, as can be seen from Figure 5, the relation curve of radial magnetic pull F and inductance L is roughly the curve of a monotone decreasing, and inductance l values is larger, radial magnetic pull F is less, stronger to the regulating action of radial magnetic pull F.
In sum, the sub-stator 311 of block assembly is corrected the offset of rotor 32 piecemeal, thus serves from the effect of entirety to rotor 32 eccentricity correction.
According to the compressor 100 such as frequency-changeable compressor of the embodiment of the present invention, by carrying out block assembly to stator 31, and adopt the mode of winding connection in parallel, along with the change of axial each section of air gap flux density, the winding inductance of each straton stator 311 in space changes separately, achieve the rectification piecemeal to rotor 32 bias, thus achieve on the whole to the object that rotor 32 bias is corrected, reduce electromagnetic noise simultaneously.
According to an embodiment of the present invention, the groove area of the stator slot of at least two sub-stators 311 is identical, specifically, the structure example of the iron core 3111 of at least two sub-stators 311 is as all identical in the stator laminating structure on iron core 3111 and size is also identical, wherein, iron core 3111 can form by multiple punching is stacked, and the wire diameter of each winding of the difference correspondence of at least two sub-stators 311 and the number of turn are also all identical, or the wire diameter of each winding and the number of turn increase successively along from the side of contiguous compressing mechanism towards the direction of the side away from compressing mechanism respectively.Thus, multiple sub-stator 311 adopts identical lamination structure, facilitates processing and the assembling of sub-stator 311, improves production efficiency.The wire diameter of winding and the number of turn known by those skilled in the art, repeat no more here.
Certainly, the present invention is not limited thereto, according to another alternative embodiment of the present invention, the groove area of the stator slot of at least two sub-stators 311 also can be different.With reference to Fig. 1 and Fig. 4, the lower end of bent axle 21 can be considered to fixing, and its upper end is in vacant state, on direction from top to bottom, the offset of bent axle 21 increases gradually, in order to strengthen the ability of rectification rotor 32 bias of the sub-stator 311 of top, the stator slot area of the sub-stator 311 of top can be improved, such as, the stator slot area of at least two sub-stators 311 preferably increases successively along from the side of contiguous compressing mechanism 2 towards the direction of the side away from compressing mechanism 2 (such as, in Fig. 1 and Fig. 4 direction) from top to bottom.
As shown in Figure 1 and Figure 4, rotor 32 upper end is large compared with the eccentric degree of its lower end, at least two sub-stators 311 can adopt different iron core 3111 structures and winding parameter, wherein, should ensure that the stator slot area of the sub-stator 311 of top is greater than the stator slot area of the sub-stator 311 of below, object is to increase winding quantity or sectional area, thus increases inductance, corrects the ability of rotor 32 bias with the sub-stator 311 strengthening top.Here, following two kinds of modes can be taked:
The first, along from the side of contiguous compressing mechanism 2 towards the direction of the side away from compressing mechanism 2 (such as, direction from top to bottom in Fig. 1 and Fig. 4), the wire diameter of each winding of at least two sub-stators 311 increases successively.With reference to Fig. 1 and Fig. 4, when group stator 311 is two, the groove area of the stator slot of the iron core 3111 of the sub-stator 311 of top can be increased, increase the wire diameter of the winding of the sub-stator 311 of top simultaneously, the inductance of the sub-stator 311 of below is greater than with the inductance of the sub-stator 311 making top, the side winding inductance that the corresponding air gap of sub-stator 311 of top is less than normal increases further, thus the radial magnetic pull making air gap side less than normal winding produce is less than the radial magnetic pull that air gap larger side winding produces further, and the air gap of correspondence side winding inductance bigger than normal reduces further, from but the radial magnetic pull that air gap larger side winding produces is greater than the radial magnetic pull that air gap side less than normal winding produces further, and then the ability of rotor 32 bias corrected by the sub-stator 311 enhancing top.
The second, along from the side of contiguous compressing mechanism 2 towards the direction of the side away from compressing mechanism 2 (such as, direction from top to bottom in Fig. 1 and Fig. 4), the number of turn of each winding of at least two sub-stators 311 increases successively.With reference to Fig. 1 and Fig. 4, when group stator 311 is two, the groove area of the stator slot of the iron core 3111 of the sub-stator 311 of top can be increased, increase the number of turn of the winding of the sub-stator 311 of top simultaneously, the inductance of the sub-stator 311 of below is greater than with the stator inductance of the sub-stator 311 making top, the side winding inductance that the corresponding air gap of sub-stator 311 of top is less than normal increases further, thus the radial magnetic pull making air gap side less than normal winding produce is less than the radial magnetic pull that air gap larger side winding produces further, and the air gap of correspondence side winding inductance bigger than normal reduces further, from but the radial magnetic pull that air gap larger side winding produces is greater than the radial magnetic pull that air gap side less than normal winding produces further, and then the ability of rotor 32 bias corrected by the sub-stator 311 enhancing top.
Certainly, correcting the object of the ability of rotor 32 bias in order to reach the sub-stator 311 strengthening top, can also alternate manner be taked.Such as, as shown in Figure 1 and Figure 4, on the basis of the groove area of the stator slot of the sub-stator 311 above relatively increasing, wire diameter and the number of turn of winding can also be increased simultaneously, to reach the object of sub-stator 311 inductance improving top, implement to carry out under such scheme need make the undersaturated situation of motor magnetic circuit.
Rotor 32 can adopt integrative-structure (as shown in Figure 1), also can adopt segmental structure (as shown in Figure 4), and the rotor 32 of block assembly requires that axial restraint angle is identical with magnetizing direction.With reference to Fig. 4, rotor 32 comprises at least two the sub-rotors 321 arranged vertically, and the axial restraint angle of at least two sub-rotors 321 is all identical with magnetizing direction, at least two sub-rotors 321 and at least two sub-stator 311 one_to_one corresponding.Here, it should be noted that, " axial restraint angle ", " magnetizing direction " known by those skilled in the art, are not described in detail here.
Such as show two sub-rotors 321 in the example of fig. 4, two sub-rotors about 321 are arranged, and two sub-rotors 321 can adopt the mode of hot jacket and bent axle 21 to fix respectively, wherein, should ensure that the axial hot jacket angle of two sub-rotors 321 is identical with magnetizing direction, thus two the sub-stators 311 corresponding respectively with two sub-rotors 321 can be corrected the offset of corresponding sub-rotor 321 respectively, rectification effect is good.Be appreciated that the number of sub-rotor 321 can also be three, four even multiple, to have eccentricity correction effect better.
On the longitudinal cross-section of the compressor 100 in the diagram, when supposing initial, the upper end of bent axle 21 is tilted to the left, winding distribution in composition graphs 2 and Fig. 3 and connected mode, on the left of the stator 31 supposing Fig. 4, top is the first winding 3121, below is the 7th winding 3121 ', top, right side is the 4th winding 3124, below is the tenth winding 3124 ', B1, B1', B2, B2' is respectively the air gap flux density of above-mentioned four winding correspondence positions, F1, F1', F4, F4' is respectively the radial magnetic pull that above-mentioned four windings produce, △ 1 is sub-stator 311 Unbalanced-magnetic-pull of top, △ 2 is sub-stator 311 Unbalanced-magnetic-pull of below.
With reference to Fig. 4 composition graphs 2 and Fig. 3, sub-stator 311 initial condition of top:
∵B1＞B2→F1＞F4 △1＝F1-F4；
After electrical power runs, the sub-stator 311 of top adjusts eccentric effect:
∵B1＞B2→L1＞L4→I1＜I4→F1↓&F4↑→△1↓；
Namely, air gap between the sub-rotor 321 of top and the first winding 3121 is less, and air gap between this sub-rotor 321 and the 4th winding 3124 is larger, thus, the air gap flux density of upper left is greater than the air gap flux density of upper right, first winding 3121 inductance L 1 is greater than the 4th winding 3124 inductance L 4, the first winding 3121 input current I1 is caused to be less than the 4th winding 3124 input current I4, thus, the radial magnetic pull F1 that first winding 3121 produces is less than the radial magnetic pull F4 that the 4th winding 3124 produces, thus the sub-stator 311 Unbalanced-magnetic-pull △ 1 of top reduces, can correct the offset of the sub-rotor 321 of top.
With reference to Fig. 4 composition graphs 2 and Fig. 3, sub-stator 311 initial condition of below:
∵B1'＜B2'→F1'＜F4' △2＝F4'-F1'
After electrical power runs, the sub-stator 311 of below adjusts eccentric effect:
∵B1'＜B2'→L1'＜L4'→I1'＞I4'→F1'↑&F4'↓→△2↓
Namely, air gap between the sub-rotor 321 of below and the 7th winding 3121 ' is larger, and air gap between this sub-rotor 321 and the tenth winding 3124 ' is less, thus, the air gap flux density of lower left is less than the air gap flux density of lower right, 7th winding 3121 ' inductance L 1' is less than the tenth winding 3124 ' inductance L 4', the 7th winding 3121 input current I1' is caused to be greater than the tenth winding 3124 input current I4', thus, the radial magnetic pull F1' that 7th winding 3121 ' produces is greater than the radial magnetic pull F4' that the tenth winding 3124 ' produces, thus the sub-stator 311 Unbalanced-magnetic-pull △ 2 of below reduces, can correct the offset of the sub-rotor 321 of below.
Further, every sub-stator 311 also comprises: two insulating supports (scheming not shown), and two insulating supports are located at the axial two ends of corresponding iron core 3111 respectively, are fixed between wherein adjacent two sub-stators 311 by insulating support.
Such as, can be riveted together by public neutral end between adjacent two sub-stators 311.Specifically, suppose that the winding leading-out wire radial direction of sub-stator 311 upper end of below is drawn, be fixed on the insulating support of this sub-stator 311 upper end by pressure-type neutral terminal, in this pressure-type neutral terminal, lower surface has same structure, namely both sides all have crimping function, now winding leading-out wire and this neutral terminal conducting; And this sub-stator 311 contiguous and lower end being positioned at the sub-stator 311 above this sub-stator 311 can adopt the structure the same with sub-stator 311 upper end of above-mentioned below, namely the winding leading-out wire radial direction of sub-stator 311 lower end of top is drawn, be fixed on the insulating support of this sub-stator 311 lower end by the opposite side of pressure-type neutral terminal, now winding leading-out wire and this neutral terminal conducting, and axially the winding of same phase passes through this public neutral terminal also conducting.For two sub-stator components 311 above and below making better are fixed together, wedge shape buckle can be set on two insulating end plates being crimped with public neutral terminal, make, lower two sub-stators 311 are while crimping conducting by public neutral terminal, also make two corresponding insulating supports be fixed together by wedge shape buckle, thus the sub-stator of top and bottom is fixed together better.
The compressor 100 according to the multiple embodiment of the present invention is described in detail referring to Fig. 1-Fig. 4.
Embodiment one,
In the present embodiment, as shown in Figure 1-Figure 3, motor 3 comprises stator 31 and establishes rotor 32 therein rotationally, and rotor 32 is fixed with bent axle 31, and rotor 32 adopts overall structure.
With reference to Fig. 1-Fig. 3, stator 31 comprises two sub-stators 311 setting up and down, every sub-stator 311 includes iron core 3111 and six windings, six windings are wrapped on corresponding iron core 3111, six windings of six windings of the sub-stator 311 of top and the sub-stator 311 of below one_to_one corresponding and also tie in the vertical direction.Iron core 3111 can form by multiple punching is stacked.
Wherein, the sub-stator 311 of top and the sub-stator 311 of below adopt identical lamination structure and winding parameter (comprising winding wire diameter and umber of turn).Thus, the structure of two sub-stators 311 is identical, easy to process, and efficiency of assembling is high, and reduces cost.
Embodiment two,
The present embodiment is roughly the same with the structure of embodiment one, and wherein identical parts adopt identical Reference numeral, and difference is only: the winding parameter of upper and lower two sub-stators is different.
In the present embodiment, because rotor 32 upper end (namely away from one end of compressing mechanism 2) is large compared with its lower end eccentric degree, the sub-stator 311 of top and the sub-stator 311 of below adopt identical lamination structure and different winding parameters.Wherein, the sub-stator 311 of top increases compared with the winding wire diameter of the sub-stator 311 of below or umber of turn increases, and object is to increase inductance, thus the ability of rotor 32 bias corrected by the sub-stator 311 strengthening top.
Embodiment three,
The present embodiment is roughly the same with the structure of embodiment one, and wherein identical parts adopt identical Reference numeral, and difference is only: the groove area of the stator slot of upper and lower two sub-stators 311 is different.
In the present embodiment, because rotor 32 upper end (namely away from one end of compressing mechanism 2) is large compared with its lower end eccentric degree, the sub-stator 311 of top and the sub-stator 311 of below adopt different lamination structures and winding parameter.Wherein, the sub-stator 311 of top increases compared with the groove area of the stator slot of the sub-stator 311 of below, and winding wire diameter or umber of turn can be increased, and object is to increase inductance, thus the ability of rotor 32 bias corrected by the sub-stator 311 strengthening top.
The compressor 100 of the present embodiment is roughly the same with rotor 32 structure in embodiment one, therefore no longer describes in detail at this.
Embodiment four,
As shown in Figure 4, the present embodiment is roughly the same with the structure of embodiment one, and wherein identical parts adopt identical Reference numeral, and difference is only: rotor 32 adopts segmental structure.
In the present embodiment, with reference to Fig. 4, rotor 32 comprises two sub-rotors 321 setting up and down, two sub-rotors 321 are spaced apart from each other in the vertical direction and all fix with bent axle 31, such as, the mode of hot jacket is adopted to be fixed, two sub-rotors 321 sub-stator 311 one_to_one corresponding with two respectively.Wherein, two sub-rotor 321 axial hot jacket angles and the mode that magnetizes identical.
The compressor 100 of the present embodiment is roughly the same with stator 31 structure in embodiment one, therefore no longer describes in detail at this.
Embodiment five,
The present embodiment is roughly the same with the structure of embodiment three, and wherein identical parts adopt identical Reference numeral, and difference is only: rotor 32 adopts segmental structure.
In the present embodiment, rotor 32 comprises two sub-rotors, 321, two sub-rotors 321 setting up and down and is spaced apart from each other in the vertical direction and all fixes with bent axle 31, such as, the mode of hot jacket is adopted to be fixed, two sub-rotors 321 sub-stator 311 one_to_one corresponding with two respectively.Wherein, two sub-rotor 321 axial hot jacket angles and the mode that magnetizes identical.
The compressor 100 of the present embodiment is roughly the same with stator 31 structure in embodiment three, therefore no longer describes in detail at this.
According to the compressor 100 such as frequency-changeable compressor of the embodiment of the present invention, by standing the stator 31 of permagnetic synchronous motor 3 or stator 31, rotor 32 segmentation group, and adopt the mode of the winding parallel wiring of multiple sub-stator 311, realize in running the effect that rotor 32 bias is corrected piecemeal.Wherein, improve the difference of eccentric role according to axial arranged multiple sub-stator 311, multiple sub-stator 311 can adopt different lamination structures, winding parameter, thus reaches the radial Reeb of reduction motor better, and then reduces the object of electromagnetic noise.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (11)
1. a compressor, is characterized in that, comprising:
Housing; Compressing mechanism, described compressing mechanism is located in described housing, and described compressing mechanism comprises bent axle; And
Permagnetic synchronous motor, described permagnetic synchronous motor comprises stators and rotators, described rotor and described bent axle are fixed, described stator comprises at least two the sub-stators arranged vertically, each described sub-stator comprises iron core and multiple winding, described iron core is formed with multiple stator slot, and described multiple winding is wrapped on described iron core through described multiple stator slot, the axially corresponding described winding parallel of described at least two sub-stators.
2. compressor according to claim 1, is characterized in that, the groove area of the described stator slot of described at least two sub-stators is identical.
3. compressor according to claim 2, is characterized in that, the structure of the described iron core of described at least two sub-stators and the wire diameter of each described winding all identical with the number of turn.
4. compressor according to claim 2, it is characterized in that, the structure of the described iron core of described at least two sub-stators is identical, and the wire diameter of each described winding and the number of turn increase successively along from the side of contiguous described compressing mechanism towards the direction of the side away from described compressing mechanism respectively.
5. compressor according to claim 1, is characterized in that, the groove area of the described stator slot of described at least two sub-stators is different.
6. compressor according to claim 5, is characterized in that, the groove area of the described stator slot of described at least two sub-stators increases successively along from the side of contiguous described compressing mechanism towards the direction of the side away from described compressing mechanism.
7. compressor according to claim 6, is characterized in that, edge is from the direction of side towards the side away from described compressing mechanism being close to described compressing mechanism, and the wire diameter of each described winding of described at least two sub-stators increases successively.
8. compressor according to claim 6, is characterized in that, edge is from the direction of side towards the side away from described compressing mechanism being close to described compressing mechanism, and the number of turn of each described winding of described at least two sub-stators increases successively.
9. the compressor according to any one of claim 1-8, it is characterized in that, described rotor comprises at least two the sub-rotors arranged vertically, the axial restraint angle of described at least two sub-rotors is all identical with magnetizing direction, described at least two sub-rotors and described at least two sub-stator one_to_one corresponding.
10. compressor according to claim 1, is characterized in that, each described sub-stator also comprises:
Two insulating supports, described two insulating supports are located at the axial two ends of corresponding described iron core respectively, are fixed between wherein adjacent two described sub-stators by described insulating support.
11. compressors according to claim 1, is characterized in that, described rotor is located at inside or the outside of described stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378209.1A CN104242497B (en) | 2014-08-01 | 2014-08-01 | Compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378209.1A CN104242497B (en) | 2014-08-01 | 2014-08-01 | Compressor |
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| CN104242497A true CN104242497A (en) | 2014-12-24 |
| CN104242497B CN104242497B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410378209.1A Expired - Fee Related CN104242497B (en) | 2014-08-01 | 2014-08-01 | Compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687617A (en) * | 2017-10-18 | 2019-04-26 | 上海鸣志电器股份有限公司 | A kind of drag cup winding of axial segmentation |
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| JP2005094968A (en) * | 2003-09-19 | 2005-04-07 | Toshiba Kyaria Kk | Permanent-magnet electric motor |
| CN102536824A (en) * | 2010-12-17 | 2012-07-04 | 广东美芝制冷设备有限公司 | Rolling rotor compressor |
| CN202503413U (en) * | 2011-10-27 | 2012-10-24 | 东莞市万瑞电机有限公司 | Brushless direct current motor |
| CN103457425A (en) * | 2013-09-12 | 2013-12-18 | 安鲁荣 | Magnetic field positioning linear compressor |
| CN103929029A (en) * | 2014-04-21 | 2014-07-16 | 顾善德 | Compressor |
| CN204140404U (en) * | 2014-08-01 | 2015-02-04 | 广东美芝制冷设备有限公司 | Compressor |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005094968A (en) * | 2003-09-19 | 2005-04-07 | Toshiba Kyaria Kk | Permanent-magnet electric motor |
| CN102536824A (en) * | 2010-12-17 | 2012-07-04 | 广东美芝制冷设备有限公司 | Rolling rotor compressor |
| CN202503413U (en) * | 2011-10-27 | 2012-10-24 | 东莞市万瑞电机有限公司 | Brushless direct current motor |
| CN103457425A (en) * | 2013-09-12 | 2013-12-18 | 安鲁荣 | Magnetic field positioning linear compressor |
| CN103929029A (en) * | 2014-04-21 | 2014-07-16 | 顾善德 | Compressor |
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| CN109687617A (en) * | 2017-10-18 | 2019-04-26 | 上海鸣志电器股份有限公司 | A kind of drag cup winding of axial segmentation |
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| CN104242497B (en) | 2017-05-31 |
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