CN110875652A - Motor rotor, motor and compressor - Google Patents
Motor rotor, motor and compressor Download PDFInfo
- Publication number
- CN110875652A CN110875652A CN201811005212.3A CN201811005212A CN110875652A CN 110875652 A CN110875652 A CN 110875652A CN 201811005212 A CN201811005212 A CN 201811005212A CN 110875652 A CN110875652 A CN 110875652A
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- Prior art keywords
- rotor
- magnet
- motor
- electric machine
- stator
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a motor rotor, a motor and a compressor, wherein the motor rotor comprises: the rotor core is provided with a plurality of magnet slots distributed at intervals along the circumferential direction of the rotor core, the magnet slots penetrate through the rotor core in the axial direction, rotor magnets are arranged in the magnet slots, and each rotor magnet has different intrinsic coercive forces in the radial direction of the rotor core. According to the motor rotor, the high-efficiency operation of the motor can be realized within the full operation frequency.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a motor rotor, a motor and a compressor.
Background
The existing industry motor tends to the development trend of high rotating speed and miniaturization, the counter electromotive force value of the motor is designed to be low under the condition that the compressor motor is operated at ultrahigh rotating speed and is limited by the bus voltage of an electric control system and is influenced by weak magnetism, so that the high-frequency energy efficiency is ensured, but the result can cause the low energy efficiency of the compressor at middle and low frequency bands, the ultrahigh rotating speed motor has higher requirements on the rigidity and reliability of a crankshaft of the compressor, the deflection change of the corresponding crankshaft and the wind friction loss of a rotor are higher under heavy load and ultrahigh rotating speed, the rotary inertia of the rotor is required to be smaller than that of a conventional motor, and the structure is more compact.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the invention to provide a rotor of an electric machine which allows a high-efficiency operation of the electric machine within the full operating frequency.
The invention also provides a motor with the motor rotor.
The invention also provides a compressor with the motor.
A rotor for an electric machine according to an embodiment of the present invention includes: rotor core, rotor core is last to be provided with the edge a plurality of magnet grooves of rotor core's circumference interval distribution, the magnet groove link up in the axial rotor core, just be provided with rotor magnet in the magnet groove, every rotor magnet is in rotor core's footpath radially has different intrinsic coercive force.
According to the motor rotor, the rotor magnets with different intrinsic coercive forces in the radial direction are adopted, namely the high intrinsic coercive force magnet and the low intrinsic coercive force magnet are combined, so that the magnetic flux of the motor is variable, the motor efficiency of low, medium and high frequencies can be considered simultaneously, and the operation requirement of a high-speed motor is met.
According to the motor rotor of one embodiment of the invention, the rotor magnets are of an integral structure and have different intrinsic coercive forces in the radial direction of the rotor core.
According to the rotor of the motor, the rotor magnet is of a split structure and comprises an inner magnet and an outer magnet which are stacked along the radial direction of the rotor core.
Optionally, the intrinsic coercivity of the inner layer magnet is smaller than the intrinsic coercivity of the outer layer magnet.
Optionally, the intrinsic coercivity of the inner layer magnet is greater than the intrinsic coercivity of the outer layer magnet.
Further, the intrinsic coercive force Hcj of the magnet with higher intrinsic coercive force in the inner layer magnet and the outer layer magnet is more than or equal to 23 kOe.
Further, the thickness of the magnet with high intrinsic coercivity in the inner layer magnet and the outer layer magnet is H2, the thickness of the other magnet is H1, and H1 is not less than H2 and not less than 0.3H 1.
Further, the width of the magnet having a high intrinsic coercive force of the inner layer magnet and the outer layer magnet is W2, and the thickness of the other magnet is W1, 0.5W2 ≤ W1 ≤ 1.5W 2.
Optionally, the inner layer magnet and the outer layer magnet are fixed by adhesive through an adhesive layer.
Optionally, the electric machine rotor further comprises: and the fixing frame surrounds and clamps the inner-layer magnet and the outer-layer magnet.
According to a second aspect of the invention, a motor rotor as defined in any of the first aspects is provided. The motor rotor further includes: the stator, the stator cover is established the electric motor rotor outside, electric motor rotor can be relative the stator rotates, the stator includes: stator core, stator core has the edge a plurality of stator teeth of stator core circumference interval distribution, adjacent two inject the stator slot between the stator tooth, the winding has motor winding on the stator tooth, motor winding adopts the mode of distribution winding or concentrated wire winding, the motor is higher for prior art work efficiency, and work is more reliable.
According to a compressor of a third aspect of the present invention, the motor as described in the second aspect is provided. The advantages of the compressor are the same as those of the motor in the prior art, and are not described in detail herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a rotor of an electric machine according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a rotor of an electric machine according to a second embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural view of a rotor of an electric machine according to a third embodiment of the present invention;
fig. 5 is a schematic structural view of a rotor of an electric machine according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural view of a rotor of an electric machine according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural view of a rotor of an electric machine according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural view of a rotor of an electric machine according to a seventh embodiment of the present invention;
fig. 9 is a partial enlarged view at B in fig. 8;
fig. 10 is a schematic structural view of a rotor of an electric machine according to an eighth embodiment of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10 at C;
fig. 12 is a schematic structural view of a motor constituted by a motor rotor of the third embodiment;
fig. 13 is a schematic structural view of a compressor according to an embodiment of the present invention.
Reference numerals:
the compressor 100, the motor 10, the electronic rotor 1, the rotor core 11, the magnet slot 111, the inner layer vent hole 112, the outer layer vent hole 113, the rotor hole 114, the rotor magnet 2, the inner layer magnet 21, the outer layer magnet 22, the glue layer 3, the fixing frame 4, the stator 5, the stator core 51, the stator teeth 511, the stator slot 512, the winding 513, the shell 6, the compression mechanism part 7, the crankshaft 8 and the oil storage cavity 9.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
A rotor 1 of an electrical machine according to an embodiment of the invention is described below with reference to fig. 1-13. As shown in fig. 1 to 13, a rotor 1 of an electric machine according to an embodiment of the present invention includes: the rotor comprises a rotor core 11, wherein a plurality of magnet slots 111 distributed at intervals along the circumferential direction of the rotor core 11 are arranged on the rotor core 11, the magnet slots 111 axially penetrate through the rotor core 11, rotor magnets 2 are arranged in the magnet slots 111, and each rotor magnet 2 has different intrinsic coercive forces in the radial direction of the rotor core 11.
It can be understood that by combining the magnets with high intrinsic coercivity and low intrinsic coercivity to form magnets with different intrinsic coercivity in radial direction, such rotor magnet 2 enables the magnetic flux of the motor rotor 1 to be variable during operation, and can simultaneously give consideration to the efficiency of the motor 10 with low, medium and high frequencies, so that the motor 10 can obtain the rated torque characteristic from the low-speed region to the medium-speed region, and the rated output power characteristic from the low-speed region to the high-speed region, thereby achieving high-efficiency operation of the motor 10 within the full operation frequency.
Meanwhile, the combination of the magnets is beneficial to improving the original magnetic field of the motor 10, the size of the motor rotor 1 can be further reduced, the mass of the motor rotor 1 is reduced, and therefore the rotational inertia of the motor rotor 1 is reduced, and the deflection change of the crankshaft 8 and the wind friction loss of the motor rotor 1 are reduced.
Alternatively, as shown in fig. 1, in the first embodiment of the present invention, the rotor magnet 2 is an integral structure and has different intrinsic coercive forces in the radial direction of the rotor core 11, so that, unlike the conventional variable magnetic flux rotor structure in which the plurality of layers of magnet slots 111 are radially arranged, the rotor magnet 2 having different intrinsic coercive forces in this application adopts an integral structure, which is more compact in structure, simpler in process, higher in magnet utilization rate, and suitable for the operation requirement of the ultrahigh-speed motor 10.
Alternatively, as shown in fig. 2 and 3, in the second embodiment of the present invention, the rotor magnet 2 is a split structure and includes the inner magnet 21 and the outer magnet 22 stacked in the radial direction of the rotor core 11, so that the rotor magnet 2 is formed in a simple manner, and the two magnets are easily magnetized and replaced.
It should be noted that, in the description of the present invention, "a plurality" means two or more.
Alternatively, as shown in fig. 1, in the first embodiment of the present invention, the intrinsic coercivity of the inner layer magnet 21 may be smaller than the intrinsic coercivity of the outer layer magnet 22, so that the inner layer magnet 21 is not easy to demagnetize during the operation of the motor rotor 1, and the operation reliability of the motor rotor 1 is high, and of course, the intrinsic coercivity of the inner layer magnet 21 may also be larger than the intrinsic coercivity of the outer layer magnet 22 according to actual needs (as in the third embodiment in fig. 4), so as to meet the use requirements of the motor 10 under special operating conditions.
Further, the intrinsic coercive force Hcj of the magnet with higher intrinsic coercive force of the inner layer magnet 21 and the outer layer magnet 22 is not less than 23kOe, so that the problem of easy demagnetization of the high-speed motor 10 under the condition of current surge can be solved by adopting the rotor magnet 2 with the intrinsic coercive force not less than 23kOe, and the working reliability of the high-speed motor 10 is effectively improved.
Alternatively, as shown in fig. 5, in the fourth embodiment of the present invention, the magnet slot 111 may be configured as an "︺" slot, so that at least three rotor magnets 2 may be placed in the "︺" slot, which may effectively increase the initial magnetic field strength of the rotor core 11, and avoid the problem of demagnetization of the rotor magnets 2 caused by current surge caused by the operation of the motor 10 in a weak magnetic state.
Of course, the magnet slots 111 of the present invention may be configured in other forms, for example, in the fifth embodiment of fig. 6, the magnet slots 111 may be configured as "V" shaped slots, so that at least two rotor magnets 2 may be placed in the "V" shaped slots, which may effectively increase the initial magnetic field strength of the rotor core 11, and avoid the problem of demagnetization of the rotor magnets 2 caused by current surge caused by the operation of the motor 10 in a weak magnetic state.
According to the motor rotor 1 of the embodiment of the invention, the width and the thickness of the inner layer magnet 21 and the outer layer magnet 22 in the rotor magnet 2 can be the same, so that the processing of the rotor magnet 2 is convenient, the production efficiency is high, and of course, in other embodiments, as shown in the sixth embodiment shown in FIG. 7, the thickness of the magnet having a high intrinsic coercive force of the inner layer magnet 21 and the outer layer magnet 22 is H2, the thickness of the other magnet is H1, H1. gtoreq.H 2. gtoreq.0.3H 1, that is, the thickness of the magnet having a high intrinsic coercivity is smaller than the thickness of the magnet having a low intrinsic coercivity, and the thickness of the magnet having a high intrinsic coercivity is larger than three-tenths of the thickness of the magnet having a low intrinsic coercivity, so that the thickness of the magnet having a low intrinsic coercivity is made larger, the working reliability of the motor 10 can be effectively prevented from being influenced by the demagnetization phenomenon of the magnet with lower intrinsic coercivity in the running process of the motor rotor 1.
Further, the width of the magnet with higher intrinsic coercivity in the inner layer magnet 21 and the outer layer magnet 22 is W2, the thickness of the other magnet is W1, and the thickness of the other magnet is not less than 0.5W2 and not more than W1 and not more than 1.5W2, that is, the width of the magnet with higher intrinsic coercivity and the width of the magnet with lower intrinsic coercivity can be adjusted according to actual needs to meet the use requirements of the motor 10 under different working conditions.
Alternatively, as shown in fig. 8 and 9, in the seventh embodiment, the inner magnet 21 and the outer magnet 22 may be fixed by adhesive with the adhesive layer 3, so that the inner magnet 21 and the outer magnet 22 are connected simply and firmly, and the inner magnet 21 and the outer magnet 22 may be processed separately.
Alternatively, the rotor 1 of the motor in the eighth embodiment as shown in fig. 10 and 11 may further include: the fixing frame 4 is used for surrounding and clamping the inner-layer magnet 21 and the outer-layer magnet 22, so that under the condition that the inner-layer magnet 21 and the outer-layer magnet 22 are fixedly connected, clamping force can be applied to the inner-layer magnet 21 and the outer-layer magnet 22, the phenomenon that the inner-layer magnet 21 and the outer-layer magnet 22 fall off or are dislocated in the operation process of the motor rotor 1 is prevented, and the working reliability of the motor 10 is influenced.
In summary, according to the motor rotor 1 of the embodiment of the present invention, the rotor magnets 2 having different intrinsic coercive forces in the radial direction are placed in the same magnet slot 111, so that the magnetic flux of the permanent magnet synchronous motor 10 under different frequency bands and loads can be changed, thereby ensuring that the motor 10 has higher efficiency under high, medium and low frequencies, and the magnetic field strength of the motor rotor 1 is effectively enhanced, thereby further improving the power density of the motor 10, reducing the wind friction loss of the motor 10, and the structure of the motor rotor 1 is more compact, the assembly process is simpler compared with a multilayer variable magnetic flux rotor, the utilization rate of the magnets is higher, and the operation requirement of the motor 10 with ultrahigh rotation speed can be met.
As shown in fig. 1 to 11, the rotor core 11 is further provided with rotor vents, the rotor vents include inner vents 112 and outer vents 113, the inner vents 112 and the outer vents 113 are respectively located at the radial inner side and the radial outer side of the magnet slot 111, the inner vents 112 are distributed at intervals in the circumferential direction of the rotor core 11 and are arranged around the rotor hole 114, the outer vents 113 include a plurality of sets of vents, the number of each set of vents is three and is arranged close to the peripheral edge of the rotor core 11, and the size of the inner vents 112 is larger than that of the outer vents 113, so that on one hand, the rotor mass is favorably reduced, on the other hand, the heat dissipation efficiency of the motor rotor 1 can be effectively improved, and the working reliability of the motor rotor 1 is improved.
The present invention further provides a motor 10, where the motor 10 includes the above-mentioned motor rotor 1, and further includes: as shown in fig. 12, the stator 5 is disposed on the outer side of the motor rotor 1, the motor rotor 1 can rotate relative to the stator 5, and the stator 5 includes: the stator core 51 is provided with a plurality of stator teeth 511 distributed at intervals along the circumferential direction of the stator core 51, a stator slot 512 is defined between every two adjacent stator teeth 511, the motor winding 513 is wound on each stator tooth 511, and the motor winding 513 can be manufactured in a distributed winding or concentrated winding mode, so that the preparation efficiency of the motor winding 513 is high, the processing time can be saved, and the production efficiency is improved.
The invention further provides a compressor 100, the compressor 100 includes the above-mentioned motor 10, as shown in fig. 13, the motor 10 is disposed inside the housing 6 of the compressor 100, and a compression mechanism portion 7 is disposed below the motor 10, the crankshaft 8 is connected to the compression mechanism portion 7 and is matched with a rotor hole 114 in the center of the motor rotor 1, so that the crankshaft 8 is driven by the motor 10 to rotate, and further the compression mechanism portion 7 is driven to work to compress a medium in the compression cavity, thereby implementing a function of the compressor 100, meanwhile, an oil storage cavity 9 is further disposed at the bottom of the compression mechanism portion 7, and the oil storage cavity 9 is used for storing lubricating oil, so as to lubricate the crankshaft 8, a bearing and the like, and improve the working reliability of the compressor 100.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
Alternatively, the motor 10 according to the embodiment of the present invention may be a permanent magnet synchronous motor 10, which may be used in the rotary compressor 100.
The specific configurations of other components of the compressor 100 according to the embodiment of the present invention, such as the compression mechanism portion 7, etc., are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. An electric machine rotor, comprising:
rotor core, rotor core is last to be provided with the edge a plurality of magnet grooves of rotor core's circumference interval distribution, the magnet groove link up in the axial rotor core, just be provided with rotor magnet in the magnet groove, every rotor magnet is in rotor core's footpath radially has different intrinsic coercive force.
2. The electric machine rotor as recited in claim 1, wherein the rotor magnets are of unitary construction and have different intrinsic coercive forces in a radial direction of the rotor core.
3. The electric machine rotor as recited in claim 1, wherein the rotor magnets are of a split construction and include an inner layer of magnets and an outer layer of magnets stacked radially along the rotor core.
4. The electric machine rotor of claim 3, wherein the intrinsic coercivity of the inner layer magnets is less than the intrinsic coercivity of the outer layer magnets.
5. The electric machine rotor of claim 3, wherein the intrinsic coercivity of the inner layer magnets is greater than the intrinsic coercivity of the outer layer magnets.
6. The electric machine rotor according to claim 3, wherein the intrinsic coercive force Hcj of the magnet having a higher intrinsic coercive force of the inner layer magnet and the outer layer magnet is not less than 23 kOe.
7. The motor rotor as claimed in claim 3, wherein the thickness of the magnet having a higher intrinsic coercive force of the inner layer magnet and the outer layer magnet is H2, and the thickness of the other magnet is H1, H1 is H2 is 0.3H 1.
8. The electric motor rotor as claimed in claim 3, wherein the width of the magnet having the higher intrinsic coercive force of the inner layer magnet and the outer layer magnet is W2, and the thickness of the other magnet is W1, 0.5W2 ≦ W1 ≦ 1.5W 2.
9. The electric machine rotor as recited in claim 3, wherein the inner layer magnets and the outer layer magnets are adhesively secured by a glue layer.
10. The electric machine rotor of claim 3, further comprising: and the fixing frame surrounds and clamps the inner-layer magnet and the outer-layer magnet.
11. An electric machine comprising an electric machine rotor according to any of claims 1-10, further comprising: the stator, the stator cover is established the electric motor rotor outside, electric motor rotor can be relative the stator rotates, the stator includes: the stator core, stator core has the edge a plurality of stator teeth of stator core circumference interval distribution, adjacent two inject the stator slot between the stator tooth, the winding has motor winding on the stator tooth, motor winding adopts the mode of distribution winding or concentrated wire winding.
12. A compressor, characterized by comprising an electric machine according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005212.3A CN110875652A (en) | 2018-08-30 | 2018-08-30 | Motor rotor, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811005212.3A CN110875652A (en) | 2018-08-30 | 2018-08-30 | Motor rotor, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110875652A true CN110875652A (en) | 2020-03-10 |
Family
ID=69715138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811005212.3A Pending CN110875652A (en) | 2018-08-30 | 2018-08-30 | Motor rotor, motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110875652A (en) |
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| CN107404168A (en) * | 2017-08-30 | 2017-11-28 | 广东威灵电机制造有限公司 | Rotor and compressor |
| CN207098796U (en) * | 2017-08-30 | 2018-03-13 | 广东威灵电机制造有限公司 | Rotor and compressor |
| CN108233565A (en) * | 2018-03-29 | 2018-06-29 | 广东美芝制冷设备有限公司 | Motor, compressor and refrigeration equipment |
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2018
- 2018-08-30 CN CN201811005212.3A patent/CN110875652A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675812A (en) * | 2002-08-09 | 2005-09-28 | 株式会社日立制作所 | Rotator of permanent magnet rotating electric machine |
| CN103907267A (en) * | 2011-11-07 | 2014-07-02 | 三菱电机株式会社 | Rotor in permanent magnet embedded motor, motor using said rotor, compressor using said motor, and air conditioner using said compressor |
| CN202889012U (en) * | 2012-09-18 | 2013-04-17 | 俞俊越 | Improved structure of rotor of motor |
| CN105247764A (en) * | 2013-06-12 | 2016-01-13 | 三菱电机株式会社 | Motor with permanent magnet embedded therein, and compressor |
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| CN204633491U (en) * | 2014-04-22 | 2015-09-09 | 三菱电机株式会社 | Permanent magnet submerged motor, compressor and refrigerating air conditioning device |
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| CN108233565A (en) * | 2018-03-29 | 2018-06-29 | 广东美芝制冷设备有限公司 | Motor, compressor and refrigeration equipment |
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Application publication date: 20200310 |
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