CN210404883U - Sectional type rotor, motor, compressor and air conditioner - Google Patents
Sectional type rotor, motor, compressor and air conditioner Download PDFInfo
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- CN210404883U CN210404883U CN201921760169.1U CN201921760169U CN210404883U CN 210404883 U CN210404883 U CN 210404883U CN 201921760169 U CN201921760169 U CN 201921760169U CN 210404883 U CN210404883 U CN 210404883U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000004804 winding Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a sectional type rotor, motor, compressor and air conditioner relates to heat transfer device's technical field, the utility model provides a sectional type rotor, first rotor structure and second rotor structure including the segmentation setting, be equipped with on the first rotor structure with the different magnet steel groove structure of second rotor structure. Through "V" style of calligraphy magnet steel groove structure that first rotor structure went up to set up, compare in the structural "one" style of calligraphy magnet steel groove structure that sets up of second rotor for the electromagnetic force that first rotor structure received is greater than the electromagnetic force that second rotor structure received, has reduced the rotatory eccentric distance of rotor greatly, thereby has reduced the vibration noise of motor.
Description
Technical Field
The utility model relates to a heat transfer device's technical field especially relates to sectional type rotor, motor, compressor and air conditioner.
Background
The rotor subassembly of current inverter air conditioner compressor inside is generally in one side of bearing, and the rotor structure of the other side is unsettled and sets up, so in the compressor operation, under the effect of cantilever and the effect of motor electromagnetic force, the skew will take place at the rotation center of the rotor subassembly of unsettled that side in rotatory in-process, make the rotor produce the displacement in radial direction, consequently the rotor will form the toper when rotatory and rotate, the rotation center at this moment and the magnetic field center of stator are not concentric, thereby make the motor eccentric, and the motor eccentric can cause the frequency and the rotational frequency of electromagnetic force to produce the modulation, make the amplitude of electromagnetic force increase, the order frequency increases, thereby make the motor produce great vibration, finally make the vibration noise increase of motor.
SUMMERY OF THE UTILITY MODEL
In order to reduce the vibration and the noise of motor, the technical scheme of the utility model provides a sectional type rotor, motor, compressor and air conditioner. The technical scheme is as follows:
in one aspect, the utility model provides a sectional type rotor, including first rotor structure and the second rotor structure that the segmentation set up, be equipped with the magnet steel groove structure different with second rotor structure on the first rotor structure.
Specifically, a V-shaped magnetic steel groove structure is arranged on the first rotor structure, and a linear magnetic steel groove structure is arranged on the second rotor structure.
Through "V" style of calligraphy magnet steel groove structure that first rotor structure went up to set up, compare in the structural "one" style of calligraphy magnet steel groove structure that sets up of second rotor, make the electromagnetic force that first rotor structure received be greater than the electromagnetic force that second rotor structure received, and then make first rotor structure can provide great magnetism density, thereby guarantee that the motor has great output torque, thereby the second rotor structure reduces the disturbance degree when reducing rotor structure rotation because of the electromagnetic force that receives simultaneously, make the rotation of rotor become the class cylindrical by the toper, the rotatory eccentric distance of rotor has been reduced greatly, thereby the vibration noise of motor has been reduced.
Specifically, the first rotor structure is close to the power output end of the motor, and the second rotor structure is far away from the power output end of the motor.
Specifically, the diameter of the first rotor structure is greater than or equal to the diameter of the second rotor structure.
Particularly, the sectional type rotor further comprises a third rotor structure, the first rotor structure is close to the power output end of the motor, the second rotor structure is far away from the power output end of the motor, the third rotor structure is arranged between the first rotor structure and the second rotor structure, the first rotor structure is provided with a V-shaped magnetic steel groove structure, the second rotor structure is provided with a linear magnetic steel groove structure, and the third rotor structure is provided with a U-shaped magnetic steel groove structure.
Through the arrangement of the U-shaped magnetic steel groove structure on the third rotor structure, the electromagnetic force borne by the third rotor is between the first rotor structure and the second rotor structure, and the stability of the electromagnetic stress of the whole sectional type rotor is ensured.
Specifically, the diameter of the first rotor structure is greater than or equal to the diameter of the third rotor structure, and the diameter of the third rotor structure is greater than or equal to the diameter of the second rotor structure.
Specifically, the electromagnetic force amplitude of the first rotor structure is greater than the electromagnetic force amplitude of the third rotor structure, and the electromagnetic force amplitude of the third rotor structure is greater than the electromagnetic force amplitude of the second rotor structure.
On the other hand, the utility model also provides a motor, including stator core and winding, still include the sectional type rotor.
In particular, the ratio of the inner diameter of the stator core to the outer diameter of the segmented rotor is between 1.64 and 2.24.
On the other hand, the utility model also provides a compressor, including the bearing, still include the motor.
In another aspect, an air conditioner includes an inner unit and an outer unit, the outer unit including a compressor.
Compared with the prior art, the utility model beneficial effect who has is: through "V" style of calligraphy magnet steel groove structure that first rotor structure went up to set up, compare in the structural "one" style of calligraphy magnet steel groove structure that sets up of second rotor, make the electromagnetic force that first rotor structure received be greater than the electromagnetic force that second rotor structure received, and then make first rotor structure can provide great magnetism density, thereby guarantee that the motor has great output torque, thereby the second rotor structure reduces the disturbance degree when reducing rotor structure rotation because of the electromagnetic force that receives simultaneously, make the rotation of rotor become the class cylindrical by the toper, the rotatory eccentric distance of rotor has been reduced greatly, thereby the vibration noise of motor has been reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention, in which:
FIG. 1 is a schematic perspective view of a rotor in the prior art;
FIG. 2 is a perspective view of a segmented rotor having a two rotor configuration;
FIG. 3 is a perspective view of a segmented rotor having a three rotor configuration;
FIG. 4 is a table comparing performance parameters of a prior art rotor and a rotor according to two embodiments of the present invention;
FIG. 5 is a table comparing the vibration amplitude of the rotor of the prior art and the rotor of the two embodiments of the present invention in order 6;
FIG. 6 is a table comparing the 6 times multiplied noise of a rotor of the prior art and a rotor of two embodiments of the present invention;
fig. 7 is a sectional view of the compressor mentioned in the present embodiment;
FIG. 8 is a front view of a second rotor structure in the present embodiment;
FIG. 9 is a front view of the first rotor structure of the present embodiment;
fig. 10 is a front view of a third rotor structure in this embodiment.
Reference numerals: 1 a first rotor structure, 2 a second rotor structure, 3 a third rotor structure, 4 power output ends of the motor, 5I-shaped magnetic steel groove structures, 6V-shaped magnetic steel groove structures and 7U-shaped magnetic steel groove structures
Detailed Description
The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in fig. 1, the existing rotor structure is generally a single integral type, the rotor assembly inside the inverter air conditioner compressor is generally located on one side of the bearing, and the rotor structure on the other side is suspended, so that in the operation process of the compressor, under the action of the cantilever and the electromagnetic force of the motor, the rotation center of the rotor assembly on the suspended side will be shifted in the rotation process, so that the rotor will be displaced in the radial direction, and therefore the rotor will form a conical rotation when rotating, and the rotation center at this time is not concentric with the magnetic field center of the stator, so that the motor is eccentric, and the eccentricity of the motor will cause the frequency of the electromagnetic force and the rotation frequency to be modulated, so that the amplitude of the electromagnetic force is increased, the order frequency is increased, so that the motor generates large vibration, and finally the vibration noise of the motor is increased.
In order to reduce the vibration and the noise of motor, the technical scheme of the utility model provides a motor and compressor with sectional type rotor structure. The technical scheme is as follows:
the invention is described in further detail below with reference to fig. 2 and 7.
As shown in fig. 2, fig. 7, fig. 8 and fig. 9, on the one hand, the utility model provides a sectional type rotor, including first rotor structure 1 and the second rotor structure 2 that the segmentation set up, be equipped with the magnet steel groove structure different with second rotor structure 2 on the first rotor structure 1.
Specifically, the first rotor structure 1 is provided with a V-shaped magnetic steel slot structure 5, and the second rotor structure 2 is provided with a linear magnetic steel slot structure 6.
Through "V" style of calligraphy magnetic steel groove structure 5 that first rotor structure set up, compare in the structural "one" style of calligraphy magnetic steel groove structure 6 that sets up of second rotor, make the electromagnetic force that first rotor structure 1 received be greater than the electromagnetic force that second rotor structure 2 received, and then make first rotor structure 1 can provide great magnetism density, thereby guarantee that the motor has great output torque, thereby second rotor structure 2 reduces the disturbance degree when reducing rotor structure is rotatory because of the electromagnetic force that receives simultaneously, make the rotation of rotor become the class of cylindricality by the toper, the rotatory eccentric distance of rotor has been reduced greatly, thereby the vibration noise of motor has been reduced.
In particular, the first rotor structure 1 is close to the power take-off 4 of the electric machine and the second rotor structure 2 is far from the power take-off 4 of the electric machine.
Specifically, the diameter of the first rotor structure 1 is equal to or greater than the diameter of the second rotor structure 2.
As shown in fig. 3 and fig. 10, the segmented rotor further includes a third rotor structure 3, the first rotor structure 1 is close to the power output end 4 of the motor, the second rotor structure 2 is far away from the power output end 4 of the motor, the third rotor structure 3 is arranged between the first rotor structure 1 and the second rotor structure 2, the first rotor structure 1 is provided with a "V" -shaped magnetic steel slot structure 6, the second rotor structure 2 is provided with a "i" -shaped magnetic steel slot structure 5, and the third rotor structure 3 is provided with a "U" -shaped magnetic steel slot structure 7.
Through the arrangement of the U-shaped magnetic steel groove structure 7 on the third rotor structure 3, the electromagnetic force received by the third rotor structure 3 is between the first rotor structure 1 and the second rotor structure 2, and the stability of the electromagnetic stress of the whole sectional type rotor is ensured.
Specifically, the diameter of the first rotor structure 1 is greater than or equal to the diameter of the third rotor structure 3, and the diameter of the third rotor structure 3 is greater than or equal to the diameter of the second rotor structure 2. As can be taken from fig. 4, the amplitude of the electromagnetic force of the first rotor structure 1 is greater than the amplitude of the electromagnetic force of the third rotor structure 3, the amplitude of the electromagnetic force of the third rotor structure 3 is greater than the amplitude of the electromagnetic force of the second rotor structure 2, and in particular, the ratio of the outer diameter of the stator core to the outer diameter of the segmented rotor is between 1.6 and 2.2.
As shown in fig. 4, the maximum displacement of the rotor eccentricity during the operation of the rotor in the first embodiment is reduced by 65% and the output torque of the motor is increased by 10.4% compared with the displacement in the prior art.
The maximum displacement of the rotor eccentricity in the rotor operation process in the second embodiment is reduced by 72.5% relative to the displacement in the existing scheme, and the output torque of the motor is improved by 18.8%.
As shown in fig. 5, the vibration amplitude in the first embodiment and the second embodiment is significantly reduced compared to the vibration value in the prior art.
As shown in fig. 6, the noise in both the first embodiment and the second embodiment is reduced relative to the noise in the prior art, wherein the noise in the first embodiment is relatively lower than the noise in the second embodiment.
On the other hand, the utility model also provides a motor, including stator core and winding, still include the sectional type rotor.
On the other hand, the utility model also provides a compressor, including the bearing, still include the motor.
In another aspect, an air conditioner includes an inner unit and an outer unit, the outer unit including a compressor.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (10)
1. The sectional type rotor is characterized by comprising a first rotor structure (1) and a second rotor structure (2) which are arranged in a sectional mode, wherein the first rotor structure (1) is provided with a magnetic steel groove structure different from the second rotor structure (2).
2. The segmented rotor according to claim 1, wherein said first rotor structure (1) is provided with a "V" shaped magnetic steel slot structure and said second rotor structure (2) is provided with a "i" shaped magnetic steel slot structure.
3. The segmented rotor according to claim 2, characterized in that the diameter of the first rotor structure (1) is equal to or larger than the diameter of the second rotor structure (2).
4. The segmented rotor according to claim 1, further comprising a third rotor structure (3), wherein the first rotor structure (1) is close to a power output end (4) of the motor, the second rotor structure (2) is far from the power output end (4) of the motor, the third rotor structure (3) is arranged between the first rotor structure (1) and the second rotor structure (2), the first rotor structure is provided with a V-shaped magnetic steel slot structure, the second rotor structure is provided with a I-shaped magnetic steel slot structure, and the third rotor structure is provided with a U-shaped magnetic steel slot structure.
5. The segmented rotor according to claim 4, wherein the diameter of the first rotor structure (1) is equal to or larger than the diameter of the third rotor structure (3), and the diameter of the third rotor structure (3) is equal to or larger than the diameter of the second rotor structure (2).
6. The segmented rotor according to claim 4, characterized in that the electromagnetic force amplitude of the first rotor structure (1) is larger than the electromagnetic force amplitude of the third rotor structure (3), the electromagnetic force amplitude of the third rotor structure (3) being larger than the electromagnetic force amplitude of the second rotor structure (2).
7. An electrical machine comprising a stator core and windings, further comprising a segmented rotor according to any of claims 1-6.
8. The electric machine of claim 7 wherein a ratio of an outer diameter of the stator core to an outer diameter of the segmented rotor is between 1.6 and 2.2.
9. Compressor comprising a bearing, characterized in that it further comprises an electric motor according to claim 7.
10. An air conditioner comprising an inner unit and an outer unit, wherein the outer unit comprises the compressor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760169.1U CN210404883U (en) | 2019-10-21 | 2019-10-21 | Sectional type rotor, motor, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760169.1U CN210404883U (en) | 2019-10-21 | 2019-10-21 | Sectional type rotor, motor, compressor and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN210404883U true CN210404883U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921760169.1U Active CN210404883U (en) | 2019-10-21 | 2019-10-21 | Sectional type rotor, motor, compressor and air conditioner |
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| CN (1) | CN210404883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601402A (en) * | 2019-10-21 | 2019-12-20 | 珠海凌达压缩机有限公司 | Sectional type rotor, motor, compressor and air conditioner |
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2019
- 2019-10-21 CN CN201921760169.1U patent/CN210404883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601402A (en) * | 2019-10-21 | 2019-12-20 | 珠海凌达压缩机有限公司 | Sectional type rotor, motor, compressor and air conditioner |
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