CN105071568A - Motor and compressor therewith - Google Patents
Motor and compressor therewith Download PDFInfo
- Publication number
- CN105071568A CN105071568A CN201510509557.2A CN201510509557A CN105071568A CN 105071568 A CN105071568 A CN 105071568A CN 201510509557 A CN201510509557 A CN 201510509557A CN 105071568 A CN105071568 A CN 105071568A
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- China
- Prior art keywords
- magnetic part
- rotor core
- motor
- axial length
- fixed part
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a motor and a compressor therewith. The motor comprises a stator core, and the stator core is provided with a channel and is through axially. The stator core is provided with a stator winding. The motor is also provided with a rotor core which is disposed in the channel and extends in the axial direction of the stator core. The rotor core is provided with a plurality of magnet grooves which are through axially and are arranged at intervals in the circumferential direction. The motor is also provided with a plurality of magnetic parts, and the plurality of magnetic parts are respectively disposed in the corresponding magnet grooves. The axial length of each magnetic part is less than the axial length of the rotor core, the axial length of the stator core is L1 and the axial length of the rotor core is L2, wherein the L1/L2 is not less than 0.95 and not greater than 1.05. According to the embodiment of the invention, compared with the related technology, the motor reduces the number of used electromagnetic materials, reduces the cost, can effectively use the performance of magnetic conduction of the magnetic parts, improves the utilization rate of end magnetic flow, facilitates the improvement of the performance, and further improves the cost performance.
Description
Technical field
The present invention relates to Compressor Technology field, more specifically, relate to a kind of motor and there is its compressor.
Background technology
Permanent magnet length vertically in the magnet groove of the stator core of the rare-earth permanent-magnet electric machine in correlation technique, rotor core and rotor core is roughly isometric configuration.The electric machine structure that this kind of axial length is equal can cause the phenomenon of the axial two ends leakage field of stators and rotators, and greatly reduce the performance of this motor, waste electromagnetic material, cost performance is lower.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of motor, and the structure of this motor is simple, cost performance is high.
The present invention also proposes a kind of compressor with above-mentioned motor.
The motor of embodiment according to a first aspect of the present invention, comprising: stator core, and described stator core has along its axially through passage, and described stator core is provided with stator winding; Rotor core, described rotor core is located in described passage and axis along described stator core extends, and described rotor core has along its axis multiple magnet grooves through and arranged spaced apart in its circumferential direction; Multiple magnetic part, multiple described magnetic part is located in corresponding described magnet groove respectively, and the axial length of each described magnetic part is less than the axial length of described rotor core, and the axial length of described stator core is L
1, the axial length of described rotor core is L
2, 0.95≤L
1/ L
2≤ 1.05.
According to the motor of the embodiment of the present invention, by the axial length of magnetic part is set to the axial length being less than rotor core, and the axial length relation of rotor core and stator core is set to 0.95-1.05, compared with correlation technique, decrease the use of electromagnetic material, reduce cost, and effectively can utilize the magnetic property of magnetic part, improve the utilance of end magnetic flux, be conducive to the performance of lifting motor, promote the cost performance of this motor further.
According to one embodiment of present invention, the axial length of described magnetic part is L
3, 0.7≤L
3/ L
2≤ 0.95.
According to one embodiment of present invention, also comprise two fixtures, two described fixtures lay respectively at the two ends of described magnetic part, and the two ends of described fixture are connected with the two ends of described rotor core respectively and being located at least partially in described magnet groove of described fixture supports described magnetic part to stop.
According to one embodiment of present invention, each described fixture comprises respectively: body, and described body is connected with the axial end of described rotor core, and body described at least one and described magnetic part arranged spaced apart; Multiple fixed part, multiple described fixed part is the spaced apart side towards described rotor core being located at described body respectively, the position of each described fixed part is corresponding with the position of described magnetic part respectively, and described fixed part only supports described magnetic part with fixing described magnetic part.
According to one embodiment of present invention, the side towards described rotor core of two described bodies only supports the end face of described rotor core respectively, each described body is the spaced apart formation gap with described magnetic part respectively, and described fixed part is located in the gap between described body and described magnetic part.
According to one embodiment of present invention, the cross section of described fixed part is formed as rectangle.
According to one embodiment of present invention, described fixed part and described body are integrally formed or arrange separately.
According to one embodiment of present invention, described fixed part comprises the first lamellar body and the second lamellar body, one end of described first lamellar body is connected with described body and is obliquely installed towards described magnetic part relative to described body, and described second lamellar body is connected with the other end of described first lamellar body and only supports described magnetic part.
According to one embodiment of present invention, described fixture is non-magnet material elastic component.
The compressor of embodiment according to a second aspect of the present invention, comprises the motor according to above-described embodiment.
Accompanying drawing explanation
Fig. 1 is according to the motor of the embodiment of the present invention profile along direction perpendicular to axial direction;
Fig. 2 is the motor profile in axial direction according to the embodiment of the present invention;
Fig. 3 is the magnetic part of motor and the installation diagram of fixture according to an embodiment of the invention;
Fig. 4 is the structural representation of the fixture of motor according to another embodiment of the present invention;
End view drawing after Fig. 5 assembles according to the rotor core of the motor of the embodiment of the present invention and fixture;
Fig. 6 is the cutaway view of the fixture in Fig. 5 along the part-structure of A-A line.
Reference numeral:
Motor 100;
Stator core 10; Passage 11; Stator tooth 12; Stator slot 13; Stator winding 14;
Rotor core 20; Magnet groove 21;
Magnetic part 30;
Fixture 40; Body 41; Fixed part 42; First lamellar body 421; Second lamellar body 422.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
The motor 100 of embodiment is according to a first aspect of the present invention specifically described below in conjunction with accompanying drawing 1 to Fig. 6.
As depicted in figs. 1 and 2, stator core 10, rotor core 20 and multiple magnetic part 30 is comprised according to the motor 100 of the embodiment of the present invention.Specifically, stator core 10 has along its axially through passage 11, stator core 10 is provided with stator winding 14, rotor core 20 is located in passage 11 and axis along stator core 10 extends, rotor core 20 has along its multiple magnet grooves 21 axially through and arranged spaced apart in its circumferential direction, multiple magnetic part 30 is located in corresponding magnet groove 21 respectively, and the axial length of each magnetic part 30 is less than the axial length of rotor core 20, and the axial length of stator core 10 is L
1, the axial length of rotor core 20 is L
2, 0.95≤L
1/ L
2≤ 1.05.
In other words, motor 100 forms primarily of stator core 10, rotor core 20 and multiple magnetic part 30.Wherein, stator core 10 vertically (above-below direction as shown in Figure 2) extends, stator core 10 has the passage 11 for placing rotor core 20, this passage 11 is along axis (above-below direction as shown in Figure 2) up/down perforation of stator core 10, and stator core 10 is provided with multiple stator tooth 12 arranged spaced apart along the circumference of passage 11, stator slot 13 is limited between adjacent two stator tooths 12, namely multiple stator slot 13 is arranged spaced apart along the circumference of passage 11, coil winding on stator tooth 12 to be configured to stator winding 14.
Further, rotor core 20 to be located in passage 11 and the madial wall matched in clearance of the lateral wall of rotor core 20 and stator core 10, rotor core 20 is provided with multiple magnet groove 21 arranged spaced apart along its circumference, each magnet groove 21 is along the axial up/down perforation of rotor core 20, alternatively, a magnetic part 30 is equipped with in each magnet groove 21 of rotor core 20, and this magnetic part 30 extends along the length direction (above-below direction as shown in Figure 2) of magnet groove 21, wherein, the axial length of magnetic part 30 is less than the axial length of rotor core 20, namely the axial length of magnetic part 30 is less than the axial length of magnet groove 21, and the axial length of stator core 10 is L
1be L with the axial length of rotor core 20
2meet relation: 0.95≤L
1/ L
2≤ 1.05, such as L
1/ L
20.95,1 or 1.05 can be set to, if L
1/ L
2when being 1, the axial length of rotor core 20 equals the axial length of stator core 10, and magnetic flux utilance is maximized, improve the performance of motor, now, the axial length of magnetic part 30 is less than the axial length of stator core 10, is conducive to the cost performance reducing motor 100.
Thus, according to the motor 100 of the embodiment of the present invention, by the axial length of magnetic part 30 is set to the axial length being less than rotor core 20, and rotor core 20 and the axial length relation of stator core 10 are set to 0.95-1.05, compared with correlation technique, decrease the use of electromagnetic material, reduce cost, and effectively can utilize the magnetic property of magnetic part 30, improve the utilance of end magnetic flux, be conducive to the performance of lifting motor 100, promote the cost performance of this motor 100 further.
Alternatively, magnetic part 30 can be rare-earth Nd-Fe-B permanent magnet, and the axial length of magnetic part 30 is L
3, 0.7≤L
3/ L
2≤ 0.95.Such as, L
3/ L
20.7,0.8,0.9 or 0.95 can be set to, compared with correlation technique, magnetic part 30 remanent magnetism made due to this material is high, the motor 100 of this embodiment deperms the axial dimension of part 30, namely decreases the use of electromagnetic material, reduces cost, and effectively can utilize the magnetic property of magnetic part 30, improve the utilance of end magnetic flux, be conducive to the performance of lifting motor 100, promote the cost performance of this motor 100 further.
Further, motor 100 also comprises two fixtures 40, two fixtures 40 lay respectively at the two ends of magnetic part 30, and the two ends of fixture 40 are connected with the two ends of rotor core 20 respectively and being located at least partially in magnet groove 21 of fixture 40 supports magnetic part 30 to stop.
That is, motor 100 forms primarily of stator core 10, rotor core 20, multiple magnetic part 30 and two fixtures 40.Wherein two fixtures 40 are located at the both sides up and down of rotor core 20 respectively, and two fixtures 40 are connected with lower surface with the upper surface of rotor core 20 respectively, and being located at least partially in magnet groove 21 of each fixed part 42 supports magnetic part 30 to stop, magnetic part 30 is fixedly located in magnet groove 21.
Thus, by the two ends at rotor core 20, fixed part 42 is set respectively, and make stopping at least partially of fixed part 42 support magnetic part 30, both the effect of fixed magnetic part 30 can have been played, ensure the structural stability of motor 100, also can avoid the phenomenon of rotor core 20 axial two ends leakage field, be conducive to the performance of lifting motor 100, promote the cost performance of this motor 100 further.
Particularly, as shown in Figures 2 to 4, each fixture 40 comprises body 41 and multiple fixed part 42 respectively.Specifically, body 41 is connected with the axial end of rotor core 20, and at least one body 41 is arranged spaced apart with magnetic part 30, multiple fixed part 42 is the spaced apart side towards rotor core 20 being located at body 41 respectively, the position of each fixed part 42 is corresponding with the position of magnetic part 30 respectively, and fixed part 42 only supports magnetic part 30 with fixed magnetic part 30.
In other words, fixture 40 forms primarily of body 41 and multiple fixed part 42, wherein, spaced apart the same side being located at body 41 is on the surface respectively for multiple fixed part 42, the side surface being provided with fixed part 42 of body 41 is connected with the end face of rotor core 20, and each fixed part 42 is located in corresponding magnet groove 21 and only support the end face of the magnetic part 30 in magnet groove 21, alternatively, the number of fixed part 42 is equal with the number of magnet groove 21, and the position of multiple fixed parts 42 and multiple magnet groove 21 is one_to_one corresponding respectively, and arranging of the axial length of axial length and the magnetic part 30 along rotor core 20 of each fixed part 42 is relevant.
In embodiments more of the present invention, the side towards rotor core 20 of two bodies 41 only supports the end face of rotor core 20 respectively, each body 41 is the spaced apart formation gap with magnetic part 30 respectively, and fixed part 42 is located in the gap between body 41 and magnetic part 30.
Particularly, as shown in Figure 2, axial length due to magnetic part 30 is less than the axial length of rotor core 20, if when magnetic part 30 is arranged in magnet groove 21, magnetic part 30 can be located at the middle part of magnet groove 21, the two ends of magnetic part 30 are made to keep certain distance with two end faces of rotor core 20 respectively, and two fixed parts 42 corresponding with magnet groove 21 of two bodies 41 are located in magnet groove 21 respectively only to support the two ends up and down of magnetic part 30 respectively, thus, the object be fixed on by magnetic part 30 in magnet groove 21 can be realized.
Certainly, magnetic part 30 also can adjacent rotor iron core 20 one side end face arrange, namely one end of magnetic part 30 is concordant with one end of rotor core 20, the body 41 being positioned at the fixture 40 of rotor core 20 side like this in this embodiment is directly connected with one end of magnetic part 30, and the fixed part 42 being positioned at the fixture 40 of rotor core 20 opposite side is located at magnet groove 21 and the other end stopped to magnetic part 30, namely the fixture 40 being positioned at rotor core 20 side of this embodiment does not have fixed part 42, and the fixture 40 being positioned at rotor core 20 opposite side has fixed part 42.
By arranging fixture 40 at the two ends of each magnetic part 30, magnetic part 30 moving axially in magnet groove 21 can be limited, prevent magnetic part 30 from axial displacement occurring, ensure the structural stability of motor 100, also the phenomenon of rotor core 20 axial two ends leakage field can be avoided, be conducive to the performance of lifting motor 100, promote the cost performance of this motor 100 further.Alternatively, the cross section of fixed part 42 is formed as rectangle.In other words, the cross sectional shape of this fixed part 42 can be consistent with the cross sectional shape of magnetic part 30, can increase the contact area of the two like this, ensures the balance of magnetic part 30 at magnet groove 21.And the fixture 40 of this structure is easy to process, manufacturing process is simple, cost is low.
Wherein, according to one embodiment of present invention, fixed part 42 and body 41 are integrally formed or arrange separately.Particularly, as shown in Figures 2 and 3, in the present embodiment, multiple fixed part 42 and body 41 are the part processed separately, then being located at by multiple fixed part 42 respectively in magnet groove 21 and being connected with body 41, the parts of this class formation, manufacturing process is simple, easy to process, cost is low.And as shown in Figure 4, in the present embodiment, multiple fixed part 42 is formed as one part with body 41, thus, the structure be integrally formed not only can ensure the properity stability of fixture 40, and facilitate shaping, manufacture simple, and eliminate unnecessary assembly parts and connect operation, substantially increase the efficiency of assembling of motor 100, ensure the connection reliability of each parts of motor 100, moreover bulk strength and the stability of the structure be integrally formed are higher, assemble more convenient, the life-span is longer.
In other embodiments of the present invention, fixed part 42 comprises the first lamellar body 421 and the second lamellar body 422, one end of first lamellar body 421 is connected with body 41 and is obliquely installed towards magnetic part 30 relative to body 41, and the second lamellar body 422 is connected with the other end of the first lamellar body 421 and only supports magnetic part 30.
That is, each fixed part 42 of fixture 40 forms primarily of the first lamellar body 421 and the second lamellar body 422, wherein, first lamellar body 421 is formed as the lamellar body be obliquely installed relative to body 41, and the second lamellar body 422 be arranged in parallel relative to body 41, one end of first lamellar body 421 is connected with body 41, the other end is connected with the second lamellar body 422, when fixed part 42 is located in magnet groove 21, second lamellar body 422 only supports the end face of magnetic part 30, due to the second lamellar body 422 for cantilever is arranged, the fixture 40 of this embodiment has elasticity like this, pooling feature, its thrust to magnetic part 30 can be relied on to limit moving axially of magnetic part 30, avoid motor 100 in normal work, motor 100 performance is affected because rigid collision occurs magnetic part 30.
Particularly, as shown in Figure 5 and Figure 6, in the present embodiment, rotor core 20 has six magnet grooves 21, correspondingly, rotor core 20 two ends are respectively equipped with a fixture 40, each fixture 40 has six fixed parts 42, and each fixed part 42 has two the first lamellar bodies 421 and two the second lamellar bodies 422 and is all located in a magnet groove 21, two the first lamellar bodies 421 are spaced apart respectively and be opposingly located on body 41, thus, this fixture 40 had both served the effect of fixed magnetic part 30, and there is elasticity due to this fixture 40, pooling feature, therefore can also avoid motor 100 in normal work, motor 100 performance is affected because rigid collision occurs magnetic part 30.
Preferably, according to one embodiment of present invention, fixture 40 is non-magnet material elastic component.The leakage field phenomenon that magnetic part 30 occurs along rotor core 20 two ends self-closing can be prevented like this, improve performance and the cost performance of motor 100 further.
The compressor of embodiment according to a second aspect of the present invention, comprises the motor 100 according to above-described embodiment.Because the motor 100 according to the embodiment of the present invention has above-mentioned technique effect, therefore, the compressor according to the embodiment of the present application also has above-mentioned technique effect, namely the structure of this compressor is simple, effectively can utilize the magnetic property of magnetic part 30, improve the utilance of end magnetic flux, cost performance is high.
According to the compressor of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " 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 addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " 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, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a motor, is characterized in that, comprising:
Stator core, described stator core has along its axially through passage, and described stator core is provided with stator winding;
Rotor core, described rotor core is located in described passage and axis along described stator core extends, and described rotor core has along its axis multiple magnet grooves through and arranged spaced apart in its circumferential direction;
Multiple magnetic part, multiple described magnetic part is located in corresponding described magnet groove respectively, and the axial length of each described magnetic part is less than the axial length of described rotor core,
The axial length of described stator core is L
1, the axial length of described rotor core is L
2, 0.95≤L
1/ L
2≤ 1.05.
2. motor according to claim 1, is characterized in that, the axial length of described magnetic part is L
3, 0.7≤L
3/ L
2≤ 0.95.
3. motor according to claim 1, it is characterized in that, also comprise two fixtures, two described fixtures lay respectively at the two ends of described magnetic part, and the two ends of described fixture are connected with the two ends of described rotor core respectively and being located at least partially in described magnet groove of described fixture supports described magnetic part to stop.
4. motor according to claim 3, is characterized in that, each described fixture comprises respectively:
Body, described body is connected with the axial end of described rotor core, and body described at least one and described magnetic part arranged spaced apart;
Multiple fixed part, multiple described fixed part is the spaced apart side towards described rotor core being located at described body respectively, the position of each described fixed part is corresponding with the position of described magnetic part respectively, and described fixed part only supports described magnetic part with fixing described magnetic part.
5. motor according to claim 4, it is characterized in that, the side towards described rotor core of two described bodies only supports the end face of described rotor core respectively, each described body is the spaced apart formation gap with described magnetic part respectively, and described fixed part is located in the gap between described body and described magnetic part.
6. motor according to claim 4, is characterized in that, the cross section of described fixed part is formed as rectangle.
7. motor according to claim 4, is characterized in that, described fixed part and described body are integrally formed or arrange separately.
8. motor according to claim 4, it is characterized in that, described fixed part comprises the first lamellar body and the second lamellar body, one end of described first lamellar body is connected with described body and is obliquely installed towards described magnetic part relative to described body, and described second lamellar body is connected with the other end of described first lamellar body and only supports described magnetic part.
9. the motor according to any one of claim 1-8, is characterized in that, described fixture is non-magnet material elastic component.
10. a compressor, is characterized in that, comprises the motor according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509557.2A CN105071568B (en) | 2015-08-18 | 2015-08-18 | Motor and with its compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510509557.2A CN105071568B (en) | 2015-08-18 | 2015-08-18 | Motor and with its compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105071568A true CN105071568A (en) | 2015-11-18 |
| CN105071568B CN105071568B (en) | 2018-05-18 |
Family
ID=54500877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510509557.2A Active CN105071568B (en) | 2015-08-18 | 2015-08-18 | Motor and with its compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105071568B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380543A (en) * | 2019-08-07 | 2019-10-25 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor assembly, motor, compressor |
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| CN104756366A (en) * | 2012-11-01 | 2015-07-01 | 三菱电机株式会社 | Electric motor with embedded permanent magnet, compressor, and refrigeration and air conditioning equipment |
| CN204947758U (en) * | 2015-08-18 | 2016-01-06 | 广东美芝制冷设备有限公司 | Motor and the compressor with it |
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| JP2010233413A (en) * | 2009-03-30 | 2010-10-14 | Aisin Seiki Co Ltd | Electric motor |
| CN101882824A (en) * | 2009-05-05 | 2010-11-10 | Iro有限公司 | Location substrate and permanent magnet rotor |
| CN104756366A (en) * | 2012-11-01 | 2015-07-01 | 三菱电机株式会社 | Electric motor with embedded permanent magnet, compressor, and refrigeration and air conditioning equipment |
| JP2014225959A (en) * | 2013-05-16 | 2014-12-04 | 日立オートモティブシステムズ株式会社 | Rotor of dynamo-electric machine and manufacturing method therefor |
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| CN110380543A (en) * | 2019-08-07 | 2019-10-25 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor assembly, motor, compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105071568B (en) | 2018-05-18 |
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