CN203554087U - Permanent magnet synchronous motor and compressor using the same - Google Patents
Permanent magnet synchronous motor and compressor using the same Download PDFInfo
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- CN203554087U CN203554087U CN201320654144.XU CN201320654144U CN203554087U CN 203554087 U CN203554087 U CN 203554087U CN 201320654144 U CN201320654144 U CN 201320654144U CN 203554087 U CN203554087 U CN 203554087U
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 34
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 10
- 238000004080 punching Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
The utility model mainly relates to a permanent magnet synchronous motor and a compressor using the same. The permanent magnet synchronous motor is provided with a stator and a rotor. The stator is provided with a stator core and a stator winding, and the stator core is formed through lamination of a plurality of stator silicon steel punching plates and is provided with a plurality of tooth grooves uniformly arranged along the circumference. The rotor is provided with a rotor core, a plurality of permanent magnet placing grooves, and permanent magnets inserted into the permanent magnet placing grooves, the rotor core is formed through lamination of a plurality of rotor silicon steel punching plates, a plurality of convex portions and corresponding concave parts are disposed on the outer circle of the rotor core, and gaps between connection transition segments of the raised portions and the concave portions and a stator inner circle are not uniform. With the design provided by the utility model, low-order harmonics of gap flux density can be weakened, and electromagnetic noises of the motor can thus be improved.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor, particularly relates to for the permagnetic synchronous motor of the rotary compressor of air-conditioning, refrigerator, freezer etc. and has the rotary compressor of this permagnetic synchronous motor.
Background technology
Air-conditioning, refrigerator are as household electrical appliance, and its noise problem more and more causes people's concern.And as the compressor of its power source particularly motor be its main source that produces noise.Motor electromagnetic noise is mainly to be produced by the radial electromagnetic force that acts on stator, and the root of electromagnetic force comes from motor gas-gap magnetic field.The centralized winding construction of the general normal employing of permagnetic synchronous motor for compressor at present, compared with distributed winding construction, air-gap field contains a large amount of low order subharmonic.These harmonic waves for the contribution of low frequency radial electromagnetic force obviously.But more harmonic wave must cause higher low frequency noise, make compressor and use its refrigeration machine noise large, sense of hearing is poor.
Utility model content
The utility model is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.
The purpose of this utility model be to consider the problems referred to above and provide a kind of simple in structure, performance is efficient, low noise permagnetic synchronous motor.
Another object of the present utility model is to propose a kind of compressor with above-mentioned permagnetic synchronous motor.
The technical solution of the utility model is: a kind of permagnetic synchronous motor, comprise stator and rotor, wherein, said stator has: stator core and stator winding, said stator iron core is overrided to form by multi-disc stator silicon steel punching, and said stator iron core has the multiple teeth groove along the even cloth of circumference; Above-mentioned rotor has: rotor core, multiple permanent magnet standing groove, permanent magnet, above-mentioned rotor core is overrided to form by multi-disc rotor silicon steel punching, there is multiple lug bosses and corresponding lower concave part in above-mentioned rotor core cylindrical, lug boss and lower concave part to be connected gap between changeover portion and diameter of stator bore inhomogeneous, above-mentioned permanent magnet standing groove is arranged at rotor core inside, and above-mentioned permanent magnet is positioned in permanent magnet standing groove.
The utility model, by the optimal design for rotor structure, has effectively utilized the magnetic flux of permanent magnet, can obtain efficient permagnetic synchronous motor.Meanwhile, this structure is conducive to the reduction of low frequency radial electromagnetic force and torque pulsation.Thereby improved the electromagnetic noise of motor, realized high-performance, the low noise of compressor assembly.
In addition, according to permagnetic synchronous motor of the present utility model, can also there is following additional technical feature:
Further, using permanent magnet magnetic axis as d axle, and using the axle that differs 90 degree electrical degrees with d axle as q axle, wherein d shaft position is described upper convex portion, described upper convex portion setting is angled one section of circular arc of a1, described circular arc and described rotor inner circle concentric arrange, wherein 5 ° of <a1<60 °.
Further, described lug boss adopts the recessed transition of ladder to connect with the changeover portion that is connected of described lower concave part, and the recessed changeover portion of described ladder is circular arc, and the gap width of described ladder lower concave part and stator inner circle increases gradually, recessed number of plies n >=2 of ladder.
Further, described lug boss adopts one section of circular arc to connect with the changeover portion that is connected of described lower concave part, and the gap width of described circular arc and stator inner circle increases gradually, i.e. distance H 0>0 between the connecting portion circular arc center of circle and the rotor center of circle.
Further, multiple tracks is positioned over described permanent magnet standing groove upper position every magnetic bridge, and the described width every magnetic bridge should meet d1> silicon steel sheet thickness, magnetic bridge quantity n >=2.
Further, describedly every magnetic bridge, with respect to d axle axial location, be arranged symmetrically with.
Further, multiple tracks arranges perpendicular to permanent magnet standing groove 6 every magnetic bridge, and described multiple tracks is every the parallel equidistant layout of magnetic bridge.
Further, three roads are arranged at permanent magnet standing groove 6 upper positions every magnetic bridge, wherein first every magnetic bridge, perpendicular to permanent magnet standing groove 6, arrange, and both sides is oblique every magnetic bridge inclination to first every magnetic bridge, both sides every magnetic bridge and permanent magnet standing groove 6, form angle, 0 ° of <a2≤90 ° of its angle.
According to an aspect of the present utility model, a kind of compressor is also provided, comprise that aforesaid permagnetic synchronous motor is as drive motor.
Accompanying drawing explanation
Fig. 1 is the permanent magnet synchronous motor structure schematic diagram of the utility model the first embodiment.
Fig. 2 is the local enlarged diagram of the rotor structure of the utility model the first embodiment.
Fig. 3 is the permanent magnet synchronous motor structure schematic diagram of the utility model the second embodiment.
Fig. 4 is the local enlarged diagram of the rotor structure of the utility model the second embodiment.
Fig. 5 is the permanent magnet synchronous motor structure schematic diagram of the utility model the 3rd embodiment.
Fig. 6 is the permanent magnet synchronous motor structure schematic diagram of the utility model the 4th embodiment.
Fig. 7 is the rotor structure schematic diagram of the utility model the 5th embodiment.
Fig. 8 is the section shape figure of the relevant compressor of the utility model.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " orientation or the position relationship of the indication such as " center ", " length ", " width ", " thickness " be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure with operate, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Below with reference to Fig. 1-Fig. 8, describe according to the permagnetic synchronous motor of the utility model embodiment.
Fig. 1 is the permanent magnet synchronous motor structure schematic diagram of the utility model the first embodiment.It has stator 1 and rotor 2.Wherein, said stator 1 has stator core and stator winding, and stator core can be overrided to form by multi-disc stator silicon steel punching, and it is equally distributed multiple teeth groove that stator core has along the even cloth of circumference.Rotor has rotor core, multiple permanent magnet standing groove 6 and permanent magnet, rotor core can be overrided to form by multi-disc rotor silicon steel punching, there is multiple lug bosses 3 and corresponding lower concave part 4 in rotor core cylindrical, be that lug boss 3 can be identical with the quantity of lower concave part 4, for example, according to embodiment more of the present utility model, lug boss 3 can be six, and still, the utility model is not limited to this.
As shown in Figure 2, using permanent magnet magnetic axis as d axle, and using the axle that differs 90 degree electrical degrees with d axle during as q axle, d shaft position is upper convex portion 3, having angle is one section of circular arc of a1, and circular arc and rotor concentric arrange, wherein 5 ° of <a1<60 °.The cylindrical of rotor core is recessed at q shaft position, adopt the recessed transition of ladder to be connected the changeover portion between d axle and q axle, be divided into three rank recessed, its lower concave part circular arc is all concentric with rotor inner circle.The recessed arc radius of ladder reduces gradually, i.e. R1>R2>R3>R4, as shown in Figure 2.
Fig. 3 is the permanent magnet synchronous motor structure schematic diagram of the utility model the second embodiment.Fig. 4 is the local enlarged diagram of the rotor structure of the utility model the second embodiment.As seen from the figure, itself and different being of the utility model the first embodiment, changeover portion between d axle and q axle adopts arc transition to be connected, and the gap width of itself and stator inner circle increases gradually, i.e. distance H 0>0 between the connecting portion circular arc center of circle and the rotor center of circle.
According to an embodiment of the present utility model, multiple tracks is arranged at the top of permanent magnet standing groove 6 every magnetic bridge 5.For example, in some examples therein, every magnetic bridge 5 Wei San roads, three roads are arranged at permanent magnet standing groove 6 upper positions every magnetic bridge 5, wherein first every magnetic bridge 5b(as shown in Figure 4) perpendicular to permanent magnet standing groove 6, arrange, and both sides roll tiltedly every magnetic bridge 5b to first every magnetic bridge 5a and 5c, and both sides form angle a2,0 ° of <a2≤90 ° of its angle every magnetic bridge 5a and 5c and permanent magnet standing groove 6.
Fig. 5 is the permanent magnet synchronous motor structure schematic diagram of the utility model the 3rd embodiment.Position between d axle and q axle adopts the recessed transition of ladder to be connected, and is divided into three rank recessed, and its lower concave part circular arc is all concentric with rotor inner circle.The recessed arc radius of ladder reduces gradually.Three roads are arranged at permanent magnet standing groove 6 upper positions every magnetic bridge, wherein first every magnetic bridge 5b, perpendicular to permanent magnet standing groove 6, arrange, and both sides roll tiltedly every magnetic bridge to first every magnetic bridge 5a and 5c, form angle with permanent magnet standing groove 6,0 ° of <a2≤90 ° of its angle.
Sometimes, for manufacturing angle, consider, may cancel the setting every magnetic bridge 5.Fig. 7,8 is the rotor structure of permanent-magnet synchronous schematic diagram of the utility model the 4th, the 5th embodiment.Compared to the first embodiment, its Main change is to have cancelled every magnetic bridge 5.Although effect is slightly poor compared with first to fourth embodiment of the utility model, generally speaking, still can plays inhibition low frequency radial electromagnetic force, thereby improve the object of low-frequency noise.Therefore, for manufacturing, consider that implementing the utility model the 4th, the 5th embodiment is also one of feasible selection.
Fig. 8 is the section shape figure of the relevant compressor of the utility model, described compressing mechanism comprises at least one rotary compressor unit, described rotary compressor unit comprises: as the cylinder 7 of discharge chambe, be arranged on upper bearing (metal) 8 and the lower bearing 9 of cylinder side, the rolling piston 10 rolling in described cylinder interior and the inner space of described cylinder is divided into the slide plate (not shown) of discharge chambe and suction chamber under the torque being passed from motor by axle.In this compressor, at the permagnetic synchronous motor of the with good grounds the utility model above-described embodiment of pressure vessel inner sealing, the rotating speed of controlling with the converter by separately putting (not shown) is rotated, and band dynamic crankshaft 11 rotatablely moves, carry out compressed action, realize compressed action.
Compressor uses as the drive source of air conditioner, refrigerator, freezer etc., but turns round owing to growing up, therefore be one of important goods of realizing energy-saving from global warming problem.Permagnetic synchronous motor being used in after this drive source, by the high efficiency of electric rotating machine, realize energy-conservation, low noise.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.In addition, those skilled in the art can engage the different embodiment that describe in this specification or example and combine.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.
Claims (9)
1. a permagnetic synchronous motor, is characterized in that, comprises stator and rotor, wherein,
Said stator has: stator core and stator winding, and said stator iron core is overrided to form by multi-disc stator silicon steel punching, and said stator iron core has the multiple teeth groove along the even cloth of circumference;
Above-mentioned rotor has: rotor core, multiple permanent magnet standing groove, permanent magnet, above-mentioned rotor core is overrided to form by multi-disc rotor silicon steel punching, there is multiple lug bosses and corresponding lower concave part in above-mentioned rotor core cylindrical, lug boss and lower concave part to be connected gap between changeover portion and diameter of stator bore inhomogeneous, above-mentioned permanent magnet standing groove is arranged at rotor core inside, and above-mentioned permanent magnet is positioned in permanent magnet standing groove.
2. permagnetic synchronous motor according to claim 1, is characterized in that,
Using permanent magnet magnetic axis as d axle, and using the axle that differs 90 degree electrical degrees with d axle as q axle, wherein d shaft position is described upper convex portion, described upper convex portion setting is angled one section of circular arc of a1, described circular arc and described rotor inner circle concentric arrange, wherein 5 ° of <a1<60 °.
3. permagnetic synchronous motor according to claim 1, is characterized in that,
Described lug boss adopts the recessed transition of ladder to connect with the changeover portion that is connected of described lower concave part, and the recessed changeover portion of described ladder is circular arc, and the gap width of described ladder lower concave part and stator inner circle increases gradually, recessed number of plies n >=2 of ladder.
4. permagnetic synchronous motor according to claim 1, is characterized in that,
Described lug boss adopts one section of circular arc to connect with the changeover portion that is connected of described lower concave part, and the gap width of described circular arc and stator inner circle increases gradually, i.e. distance H 0>0 between the connecting portion circular arc center of circle and the rotor center of circle.
5. permagnetic synchronous motor according to claim 2, is characterized in that,
Multiple tracks is positioned over described permanent magnet standing groove upper position every magnetic bridge, and the described width every magnetic bridge should meet d1> silicon steel sheet thickness, magnetic bridge quantity n >=2.
6. permagnetic synchronous motor according to claim 5, is characterized in that,
Describedly every magnetic bridge, with respect to d axle axial location, be arranged symmetrically with.
7. permagnetic synchronous motor according to claim 6, is characterized in that,
Multiple tracks arranges perpendicular to permanent magnet standing groove every magnetic bridge, and described multiple tracks is every the parallel equidistant layout of magnetic bridge.
8. permagnetic synchronous motor according to claim 6, is characterized in that,
Three roads are arranged at permanent magnet standing groove upper position every magnetic bridge, wherein first every magnetic bridge, perpendicular to permanent magnet standing groove, arrange, and the rolling tiltedly every magnetic bridge to first every magnetic bridge of both sides, both sides every magnetic bridge and permanent magnet standing groove formation angle, 0 ° of <a2≤90 ° of its angle.
9. a compressor, is characterized in that,
There is in claim 1 to 8 permagnetic synchronous motor described in any one as drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654144.XU CN203554087U (en) | 2013-10-22 | 2013-10-22 | Permanent magnet synchronous motor and compressor using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654144.XU CN203554087U (en) | 2013-10-22 | 2013-10-22 | Permanent magnet synchronous motor and compressor using the same |
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| Publication Number | Publication Date |
|---|---|
| CN203554087U true CN203554087U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320654144.XU Expired - Lifetime CN203554087U (en) | 2013-10-22 | 2013-10-22 | Permanent magnet synchronous motor and compressor using the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300739A (en) * | 2016-10-28 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor, rotor and rotor punching |
| CN106787324A (en) * | 2017-02-24 | 2017-05-31 | 依必安派特风机(上海)有限公司 | A kind of rotor and motor |
-
2013
- 2013-10-22 CN CN201320654144.XU patent/CN203554087U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300739A (en) * | 2016-10-28 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor, rotor and rotor punching |
| CN106787324A (en) * | 2017-02-24 | 2017-05-31 | 依必安派特风机(上海)有限公司 | A kind of rotor and motor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |