CN209088648U - Rotor, permanent magnet synchronous motor and compressor - Google Patents
Rotor, permanent magnet synchronous motor and compressor Download PDFInfo
- Publication number
- CN209088648U CN209088648U CN201821364063.5U CN201821364063U CN209088648U CN 209088648 U CN209088648 U CN 209088648U CN 201821364063 U CN201821364063 U CN 201821364063U CN 209088648 U CN209088648 U CN 209088648U
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- CN
- China
- Prior art keywords
- rotor
- punching
- angle
- punching slot
- compressor
- 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.)
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Links
- 230000001360 synchronised effect Effects 0.000 title claims description 11
- 238000004080 punching Methods 0.000 claims description 52
- 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 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
Landscapes
- Compressor (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a rotor, PMSM and compressor, be provided with a plurality of towards the piece groove on the week side of rotor, adjacent two towards and form first contained angle between the piece groove. The utility model provides a rotor, PMSM and compressor makes two adjacent towards the relative slope of piece groove, utilizes two conducting bars towards the piece groove to offset each other because the electromagnetic force that electromagnetic induction produced respectively in rotating magnetic field to avoid rotor axial to move, improve the life-span of motor reliability and motor bearing, the same opposite direction of the horizontal electric current size that the conducting bar of two chutes produced in addition, and then offset each other, reduce the loss, improve the efficiency of motor.
Description
Technical field
The utility model 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.
Utility model content
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 utility model 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, thus
Rotor axial vibration is avoided, is improved the service life of motor reliability and motor bearings, and the transverse direction that the conducting bar of two skewed slots generates
For the size of current 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 that the structure of the rotor of the embodiment of rotor provided by the utility model, permanent magnet synchronous motor and compressor is shown
It is intended to；
In figure:
1, punching slot；2, the first angle.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model is not used to limit the utility model.
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 slots form a punching slot group, and every
Two punching slots 1 in a punching slot group form first angle 2 in the first end of the rotor, two neighboring
The adjacent two punching slot 1 in the punching slot group forms first angle 2 in the second end of the rotor, so that
Axial force caused by conducting bar in all punching slots 1 can complete self-cancelling, and then guarantee rotor will not generate axial string
Dynamic problem.
Two punching slots 1 in each punching slot group 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.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
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 slots form a punching slot group, and two punching slots (1) in each punching slot group are described
The first end of rotor forms first angle (2), the adjacent two punching slot in the two neighboring punching slot group
(1) first angle (2) is formed in the second end of the rotor.
3. rotor according to claim 2, it is characterised in that: two punching slots in each punching slot group
(1) there is the first spacing in the first end of the rotor, and the extended line of two punching slots (1) is crossed to form described first
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 |
|---|---|---|---|
| CN201821364063.5U CN209088648U (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 |
|---|---|---|---|
| CN201821364063.5U CN209088648U (en) | 2018-08-22 | 2018-08-22 | Rotor, permanent magnet synchronous motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209088648U true CN209088648U (en) | 2019-07-09 |
Family
ID=67115104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821364063.5U Active CN209088648U (en) | 2018-08-22 | 2018-08-22 | Rotor, permanent magnet synchronous motor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209088648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964303A (en) * | 2018-08-22 | 2018-12-07 | 珠海格力电器股份有限公司 | Rotor, permanent magnet synchronous motor and compressor |
-
2018
- 2018-08-22 CN CN201821364063.5U patent/CN209088648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964303A (en) * | 2018-08-22 | 2018-12-07 | 珠海格力电器股份有限公司 | Rotor, permanent magnet synchronous motor and compressor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |