CN108964303A - Rotor, permanent magnet synchronous motor and compressor - Google Patents
Rotor, permanent magnet synchronous motor and compressor Download PDFInfo
- Publication number
- CN108964303A CN108964303A CN201810963112.5A CN201810963112A CN108964303A CN 108964303 A CN108964303 A CN 108964303A CN 201810963112 A CN201810963112 A CN 201810963112A CN 108964303 A CN108964303 A CN 108964303A
- Authority
- CN
- China
- Prior art keywords
- rotor
- punching
- angle
- punching slot
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 56
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Compressor (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention provides a kind of rotor, permanent magnet synchronous motor and compressor, is provided with multiple punching slots on all sides of the rotor, forms the first angle between the two neighboring punching slot.Rotor, permanent magnet synchronous motor and compressor provided by the invention, make two adjacent punching slot relative tilts, using the conducting bar of two punching slots since the electromagnetic force that electromagnetic induction generates respectively is cancelled out each other in rotating excitation field, to avoid rotor axial vibration, it improves the service life of motor reliability and motor bearings, and the transverse current size same direction that the conducting bar of two skewed slots generates on the contrary, cancel out each other in turn, loss is reduced, the efficiency of motor is improved.
Description
Technical field
The present invention relates to motor device technical field, especially a kind of rotor, permanent magnet synchronous motor and compressor.
Background technique
Current middle-size and small-size induction machine obtains preferable torque performance often through rotor axial skewed slot and reduces by humorous
High-frequency vibration caused by wave and noise.However axial chute has the following problems, such as: generating transverse current, cause added losses；
Motor longer for medium-and-large-sized or iron core, skewed slot can cause biggish torsional moment, so as to cause twisting vibration, and influence
Rotor mechanical strength；Axial force is generated, rotor axial vibration is caused.
Summary of the invention
In order to solve the above-mentioned technical problem, a kind of rotor, forever that axial force that eliminating conventional axial skewed slot influences is provided
Magnetic-synchro motor and compressor.
A kind of rotor is provided with multiple punching slots, shape between the two neighboring punching slot on all sides of the rotor
At the first angle.
The quantity of the punching slot is even number, and two adjacent punching slots form a punching slot group, and every
Two punching slots in a punching slot group form first angle, two neighboring institute in the first end of the rotor
The second end that the punching slot of adjacent two in punching slot group is stated in the rotor forms first angle.
Two punching slots in each punching slot group have the first spacing, and two in the first end of the rotor
The extended line of a punching slot is crossed to form first angle.
Each punching slot forms the second angle β, and two neighboring second angle with the axis of the rotor
Form first angle.
The second angle β is calculated by formula:
β=Π d/Z；
D is the diameter of rotor；
Z is the quantity of the punching slot.
The punching slot is cage grooves, is provided with a mouse cage conducting bar in each cage grooves.
The mouse cage conducting bar is cast aluminium conducting bar.
A kind of permanent magnet synchronous motor, including above-mentioned rotor.
A kind of compressor, including above-mentioned rotor or above-mentioned permanent magnet synchronous motor.
Rotor, permanent magnet synchronous motor and compressor provided by the invention make two adjacent punching slot relative tilts, utilize
The conducting bar of two punching slots in rotating excitation field since the electromagnetic force that electromagnetic induction generates respectively is cancelled out each other, to avoid
Rotor axial vibration improves the service life of motor reliability and motor bearings, and the transverse current that the conducting bar of two skewed slots generates
For the size same direction on the contrary, cancelling out each other in turn, reduction loss improves the efficiency of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rotor of the embodiment of rotor provided by the invention, permanent magnet synchronous motor and compressor；
In figure:
1, punching slot；2, the first angle.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.
Rotor as shown in Figure 1 is provided with multiple punching slots 1, the two neighboring punching on all sides of the rotor
The first angle 2 is formed between slot 1, so that the conducting bar in two punching slots 1 is in rotating excitation field since electromagnetic induction principle produces
Raw electromagnetic force, this electromagnetic force the direction perpendicular to rotor axial and home town be motor powered rotation, and armature spindle
Component size to direction is identical, contrary, and then is completely counterbalanced by, to avoid rotor axial vibration, and then improves motor
Reliability improves the service life of motor bearings.
The quantity of the punching slot 1 is even number, and two adjacent punching slot groups 2 are at a punching slot group 2, and
Two punching slots 1 in each punching slot group 2 form first angle 2 in the first end of the rotor, adjacent
The adjacent two punching slot 1 in two punching slot groups 2 forms first angle in the second end of the rotor
2, enable the complete self-cancelling of axial force caused by conducting bar in all punching slots 1, and then guarantee that rotor will not generate
The problem of axial motion.
Two punching slots 1 in each punching slot group 2 have the first spacing in the first end of the rotor, and
The extended line of two punching slots 1 is crossed to form first angle 2, reduces rotor teeth portion area, teeth portion flux density is made to become larger,
The teeth portion magnetic loading of motor increases, and then increases the utilization rate of rotor punching, improves the efficiency of motor.
Each punching slot 1 forms the second angle β, and two neighboring second angle with the axis of the rotor
β forms first angle 2, so that electromagnetic force caused by the conducting bar in each punching slot 1 is in rotor axis side
Upward component can be essentially equal, increases neutralization effect.
The second angle β is calculated by formula:
β=Π d/Z；
D is the diameter of rotor；
Z is the quantity of the punching slot 1.
The punching slot 1 is cage grooves, is provided with a mouse cage conducting bar in each cage grooves.
The mouse cage conducting bar is cast aluminium conducting bar.
A kind of permanent magnet synchronous motor, including above-mentioned rotor.
A kind of compressor, including above-mentioned rotor or above-mentioned permanent magnet synchronous motor.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of rotor, it is characterised in that: multiple punching slots (1) are provided on all sides of the rotor, it is two neighboring described
The first angle (2) are formed between punching slot (1).
2. rotor according to claim 1, it is characterised in that: the quantity of the punching slot (1) is even number, and adjacent
Two punching slot groups (2) are at a punching slot group (2), and two punching slots in each punching slot group (2)
(1) first angle (2) is formed in the first end of the rotor, adjacent two in the two neighboring punching slot group (2)
A punching slot (1) forms first angle (2) in the second end of the rotor.
3. rotor according to claim 2, it is characterised in that: two punchings in each punching slot group (2)
Slot (1) has the first spacing in the first end of the rotor, and the extended line of two punching slots (1) is crossed to form described the
One angle (2).
4. rotor according to any one of claim 1 to 3, it is characterised in that: each punching slot (1) with it is described
The axis of rotor forms the second angle β, and two neighboring second angle forms first angle (2).
5. rotor according to claim 4, it is characterised in that: the second angle β is calculated by formula:
β=Π d/Z；
D is the diameter of rotor；
Z is the quantity of the punching slot (1).
6. rotor according to claim 1, it is characterised in that: the punching slot (1) is cage grooves, each cage grooves
Inside it is provided with a mouse cage conducting bar.
7. rotor according to claim 6, it is characterised in that: the mouse cage conducting bar is cast aluminium conducting bar.
8. a kind of permanent magnet synchronous motor, it is characterised in that: including rotor described in any one of claims 1 to 7.
9. a kind of compressor, it is characterised in that: including described in rotor or claim 8 described in any one of claims 1 to 7
Permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963112.5A CN108964303A (en) | 2018-08-22 | 2018-08-22 | Rotor, permanent magnet synchronous motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810963112.5A CN108964303A (en) | 2018-08-22 | 2018-08-22 | Rotor, permanent magnet synchronous motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964303A true CN108964303A (en) | 2018-12-07 |
Family
ID=64473060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810963112.5A Pending CN108964303A (en) | 2018-08-22 | 2018-08-22 | Rotor, permanent magnet synchronous motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964303A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409506A (en) * | 1980-07-28 | 1983-10-11 | Hitachi, Ltd. | Induction motor |
| CN85205739U (en) * | 1985-12-30 | 1986-10-01 | 宁夏轻工设计研究所 | Alternating-current asynchronous motor with herringbone-slotted rotor |
| CN1184368A (en) * | 1996-12-03 | 1998-06-10 | 三星电子株式会社 | Squirrel-cage rotor with double skewed slots |
| US20060244336A1 (en) * | 2005-04-28 | 2006-11-02 | Denso Corporation | Electric motor with minimized cogging and related method of determining stator pole geometry |
| US20100052466A1 (en) * | 2006-07-20 | 2010-03-04 | Siemens Aktiengesellschaft | Electrical machine with skew-running magnet pole boundaries |
| CN201898424U (en) * | 2010-11-01 | 2011-07-13 | 常州市裕成富通电机有限公司 | Electric vehicle motor rotor |
| CN209088648U (en) * | 2018-08-22 | 2019-07-09 | 珠海格力电器股份有限公司 | Rotor, permanent magnet synchronous motor and compressor |
-
2018
- 2018-08-22 CN CN201810963112.5A patent/CN108964303A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409506A (en) * | 1980-07-28 | 1983-10-11 | Hitachi, Ltd. | Induction motor |
| CN85205739U (en) * | 1985-12-30 | 1986-10-01 | 宁夏轻工设计研究所 | Alternating-current asynchronous motor with herringbone-slotted rotor |
| CN1184368A (en) * | 1996-12-03 | 1998-06-10 | 三星电子株式会社 | Squirrel-cage rotor with double skewed slots |
| US20060244336A1 (en) * | 2005-04-28 | 2006-11-02 | Denso Corporation | Electric motor with minimized cogging and related method of determining stator pole geometry |
| US20100052466A1 (en) * | 2006-07-20 | 2010-03-04 | Siemens Aktiengesellschaft | Electrical machine with skew-running magnet pole boundaries |
| CN201898424U (en) * | 2010-11-01 | 2011-07-13 | 常州市裕成富通电机有限公司 | Electric vehicle motor rotor |
| CN209088648U (en) * | 2018-08-22 | 2019-07-09 | 珠海格力电器股份有限公司 | Rotor, permanent magnet synchronous motor and compressor |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |