CN203911608U - Rotor sheet, rotor core and motor - Google Patents
Rotor sheet, rotor core and motor Download PDFInfo
- Publication number
- CN203911608U CN203911608U CN201420173458.2U CN201420173458U CN203911608U CN 203911608 U CN203911608 U CN 203911608U CN 201420173458 U CN201420173458 U CN 201420173458U CN 203911608 U CN203911608 U CN 203911608U
- Authority
- CN
- China
- Prior art keywords
- rotor
- punching
- motor
- core
- stator
- 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.)
- Expired - Fee Related
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a rotor sheet, a rotor core and a motor. The rotor sheet is circular and comprises a ring-shaped yoke part and 27 rotor teeth; the rotor teeth extend from the yoke part in the radial direction of the rotor sheet; and a rotor slot is reserved between every two adjacent rotor teeth. As one rotor slot is reserved between every two adjacent rotor teeth, the number of the rotor slots is identical to the number of the rotor teeth and is also 27. When the rotor sheet is applied to a six-pole motor, the starting torque of the motor can be improved effectively, the starting current is reduced, and the power factor of the motor is increased further. Through experimental verification, in the six-pole motor in which 12 stator slots and 27 rotor slots are cooperated, the magnetic flux density of a stator part and the magnetic flux density of a rotor tooth part are approximately identical, so that the motor is uniform in magnetic field distribution, the noise of the motor can be reduced effectively, and the motor efficiency is improved effectively.
Description
Technical field
The utility model relates to alternating current machine field, particularly relates to a kind of rotor punching of load motor, and the rotor core that comprises this rotor punching and motor.
Background technology
Load motor comprises field frame assembly and rotor assembly, and it is widely used in various household electrical appliance.Wherein, rotor assembly comprises cage rotor and rotating shaft, and cage rotor comprises rotor core and cast aluminium conductor.Usually, rotor core is overrided to form by multi-disc rotor punching.
In 80 traditional serial motors, the rotor number in rotor punching is commonly even bin (22 grooves or 24 grooves), and this class rotor punching is applied in 4 utmost point motors can reach efficient, quiet effect.But such rotor punching is applied in 6 utmost point motors can there is following shortcoming:
1, the narrow portion magnetic flux density of rotor tooth is large, and exciting current is large, and motor power factor reduces;
2, when motor moves, the magnetic density of stator core and rotor core is inhomogeneous, and magnetic field utilance is low;
3, the torque of motor when operation slot ripples is large, causes that motor oscillating is large, electromagnetic noise is high.
Utility model content
The utility model provides a kind of rotor punching, rotor core and motor, can improve the utilance in motor power factor and magnetic field, reduces motor oscillating and electromagnetic noise simultaneously.
For reaching technique effect, the utility model adopts following technical scheme:
A kind of rotor punching, described rotor punching is circular;
Described rotor punching comprises circular yoke portion, and from yoke portion along described rotor punching radially extend 27 rotor tooths; Between two adjacent rotor tooths, form rotor.
In an embodiment, the width of rebate C of described rotor is 0.4mm～1.0mm therein;
The groove top radius R 1 of described rotor is 1.5mm～1.8mm;
The bottom radius R2 of described rotor is 0.5mm～1.0mm;
The interior high H of described rotor is 5mm～10mm.
In an embodiment, the outside diameter Φ A of described rotor punching is 40mm～50mm therein, and the inner circle diameter of phi B of described rotor punching is 6mm～12mm.
In an embodiment, the yoke portion of described rotor punching is provided with some clips therein.
In an embodiment, described clip is riveting button therein, and the number of described riveting button is 3 or 4.
A kind of rotor core, described rotor core is overrided to form by the rotor punching described in multi-disc.
In an embodiment, on the periphery of described rotor core, be provided with skewed slot therein.
In an embodiment, described skewed slot is linear skewed slot therein;
The skew width W of described linear skewed slot is 1.0～2.5 times of described rotor slot-pitch L.
In an embodiment, described skewed slot is V-arrangement skewed slot therein;
The angle of described V-arrangement skewed slot is 123 °～160 °.
A kind of motor, comprises stator core, and described rotor core, and described rotor core is arranged in described stator core inner circle;
Described stator core is overrided to form by multi-disc stator punching, and the stator slot of described stator punching is 12.
The beneficial effects of the utility model are as follows:
Rotor punching of the present utility model, because two adjacent rotor tooths form a rotor, therefore, the quantity of rotor equates with the quantity of rotor tooth, is also 27; In the time that this rotor punching is used for the motor of 6 utmost points, can effectively improve the detent torque of motor, reduce starting current, and then increase the power factor of motor; Checking by experiment, 12 stator slots and 27 6 utmost point motors that rotor coordinates, the magnetic flux density of stator, rotor tooth portion approaches and equates, motor-field is evenly distributed, and is conducive to reduce the noise of motor, the efficiency of raising motor.
Brief description of the drawings
Fig. 1 is the front view of the utility model rotor punching one embodiment;
Fig. 2 is the enlarged drawing of D part in Fig. 1;
Fig. 3 is the front view of the utility model rotor punching and stator punching;
Fig. 4 is the structural representation of the utility model rotor core one embodiment;
Fig. 5 is the end view of rotor core shown in Fig. 4;
Fig. 6 is the rotor core of linear skewed slot and the end view of stator core;
Fig. 7 is the rotor core of V-arrangement skewed slot and the end view of stator core;
Fig. 8 is the cutaway view of the utility model motor one embodiment.
Embodiment
Describe the utility model in detail below in conjunction with embodiment.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.
Referring to Fig. 1 to Fig. 2, the utility model provides a kind of rotor punching 110, and this rotor punching 110 is generally used in 6 utmost point alternating current machines, and being particularly useful for stator punching is in 6 utmost point motors of 12 grooves.
As shown in Figure 1, rotor punching 110 of the present utility model is circular, comprises circular yoke portion 116, and from yoke portion 116 27 rotor tooths 114 that radially extend along rotor punching 110; Between two adjacent rotor tooths 114, form rotor 112; Rotor punching 110 also comprises the interior circular hole of hollow.Because two adjacent rotor tooths 114 form a rotor 112, therefore, the quantity of rotor 112 equates with the quantity of rotor tooth 114, is also 27.
More preferably, rotor tooth 114 and rotor 112 distribute at the cylindrical even circumferential of rotor punching 110; The adjacent slot arm of two adjacent rotor 112 be arranged in parallel, and wherein, groove arm is the side of rotor 112.
Rotor punching of the present utility model, is designed to 27 by the quantity of rotor, in the time that this rotor is used for the motor of 6 utmost points, coordinates 12 stator slots, has effectively improved the detent torque of motor, has reduced starting current, and then has increased the power factor of motor; Meanwhile, the magnetic flux density of stator, rotor tooth portion approaches and equates, motor-field is evenly distributed, and is conducive to reduce the noise of motor, the efficiency of raising motor.
As a kind of embodiment, the outside diameter Φ A of above-mentioned rotor punching 110 is 40mm～50mm, and preferably, Φ A is 44mm～48mm; Inner circle diameter of phi B is 6mm～12mm, is preferably 8mm～10mm, and more preferably, inner circle diameter of phi B is 8.06mm～8.10mm.In the present embodiment, compared to traditional rotor punching, outside diameter Φ A increases to some extent, and the diameter of phi B of inner circle does not reduce, ring width increases, and the aluminum strip forming after cast aluminium is difficult for forming pore, also be difficult for occurring the situation of disconnected bar, be conducive to improve the quality of rotor and motor.
Referring to Fig. 1, in the yoke portion 116 of rotor punching 110, be also provided with some clips 118.In the time that multi-disc rotor punching 110 laminates, the clip 118 on a slice rotor punching 110 matches with the clip 118 on other rotor punchings 110, realizes the mutual location between rotor punching 110.Preferably, this clip 118 is riveting button, and each rotor punching 110 interfixes by riveting button, and riveting button is preferably 3 or 4.Which is implemented simple, fixing reliable.
Referring to Fig. 2, rotor 112 comprises notch, bottom land and groove top, and bottom land and groove top are all arc structure.Wherein, the opening of rotor 112 on the cylindrical circumference of rotor punching 110 is notch; The immediate arc structure of inner circle from rotor punching 110 is bottom land; The arc structure that approaches notch place radius maximum is groove top.Preferably, the width of rebate C of the rotor 112 of rotor punching 110 is 0.4mm～1.0mm, is preferably 0.58mm～0.60mm; The groove top radius R 1 of rotor 112 is 1.5mm～1.8mm, is preferably 1.55mm～1.65mm; The bottom radius R2 of rotor 112 is 0.5mm～1.0mm, is preferably 0.68mm～0.75mm; The interior high H of rotor, the distance between the corresponding center of circle of groove top radius R 1 to the corresponding center of circle of bottom radius R2, is 5mm～10mm, is preferably 6.5mm～7.5mm.Than traditional rotor punching, the interior high H of the rotor of the rotor punching in the present embodiment increases, and the torque of the rotor output of making also increases, and then has increased the power factor of motor.
It should be noted that, rotor punching 110 of the present utility model is not limited to above-mentioned execution mode, as the interior high H of the width of rebate C of rotor 112, groove top radius R 1, bottom radius R2 and rotor can change in rational size range.
Referring to Fig. 3, be the utility model rotor punching 110 and the front view of stator punching 210.Wherein, rotor punching 110 is arranged on the inside of stator punching 210, and has gap between the excircle of rotor punching 110 and the inner periphery of stator punching 210, and this gap is for ensureing that electrical safety arranges.In the present embodiment, be provided with stator slot 212 on stator punching 210, the number of stator slot 212 is 12, and 12 stator slots 212 are connected by the yoke portion 214 of stator punching 210; On rotor punching 110, be provided with rotor 112, the number of rotor 112 is 27.According to teeth groove matching principle:
Z1-Z2 ≠ 2P; Z1-Z2 ≠ 2P ± 1; Z1-Z2 ≠ 2P ± 2; Z1-Z2 ≠ 2P ± 3; Wherein, Z1 is number of stator slots; Z2 is rotor number; 2P is motor pole number;
Adopt 12 stator slots and 27 rotor to coordinate 6 utmost point motors of making, can meet above-mentioned teeth groove matching principle, eliminate slot ripples, reach quiet effect; And under this design, the tooth portion magnetic flux density of stator, rotor approaches and equates, motor-field distributing equilibrium, is conducive to reduce the electromagnetic noise of motor, improves electric efficiency.
Referring to Fig. 4 to Fig. 5, the utility model also provides a kind of rotor core 100, and rotor core 100 is overrided to form by the above-mentioned rotor punching 110 of multi-disc.As a kind of embodiment, on rotor core 100, be provided with skewed slot 120, the transverse current that when skewed slot 120 can weaken rotor, cutting magnetic field produces and the stress influence that causes, improve the operation noise of motor effectively.
More preferably, skewed slot 120 is linear skewed slot or V-arrangement skewed slot.
Referring to Fig. 4 to Fig. 5, in the time that skewed slot 120 is linear skewed slot, the skew width W of skewed slot 120 is 1.0～2.5 times of rotor slot-pitch L, and preferably, the skew width W of skewed slot 120 is 1.8～2.3 times of rotor slot-pitch L.Wherein, skew width W is the projection in rotor punching 110 place planes of line between 120 two end points of skewed slot; Rotor slot-pitch and rotor are apart from suitable, and rotor distance is the distance between two adjacent rotor 112 notches.
Referring to Fig. 6 and Fig. 7, the skewed slot 120 of rotor core 100 is respectively linear and V-arrangement.In the time that skewed slot 120 is V-arrangement skewed slot, the angle α of V-arrangement skewed slot is 123 °～160 °.
Referring to Fig. 8, the utility model also provides a kind of motor, adopts above-mentioned rotor core 100.This motor comprises housing and is positioned at the end cap of housing both sides, and housing and end cap surround a cavity; Stator and rotor are installed in cavity, and wherein, stator comprises stator core, and is embedded into the coil on stator core, and rotor is arranged in stator, and can rotate with respect to stator; Armature spindle is arranged in rotor core 100, and with rotor core 100 interference fit, armature spindle rotates under the drive of rotor core 100, and outside outputting power.
In conjunction with Fig. 3 and Fig. 8, in above-described embodiment, stator core is overrided to form by the identical stator punching 210 of multi-disc shape, and is provided with stator slot 212 on stator punching 210, and the number of stator slot 212 is 12; Rotor core 100 is overrided to form by the identical rotor punching 110 of multi-disc shape, and is provided with rotor 112 on rotor punching 110, and the number of rotor 112 is 27.Measure by the magnetic density to stator core and rotor core, in the time that motor moves, the magnetic density of the yoke portion of stator core is about 9200 Gausses, and the tooth portion magnetic density of rotor core is about 9810 Gausses.Visible, the tooth portion magnetic density of the magnetic density of the yoke portion of stator core and rotor core is comparatively approaching, when motor operation, is difficult for vibrating, and noise is corresponding minimizing also, and the operation of motor is more steady, and reliability is higher.
The utility model passes through to change grooved size and the quantity of rotor, and slot shape of rotor is designed to deep trouth (the interior high H of rotor is larger), brings into play its kelvin effect, is beneficial to raising detent torque, reduces starting current, thereby improves the power factor of motor; And eliminate slot ripples, reached muting function; Meanwhile, make motor-field distributing equilibrium, improved the efficiency of motor.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a rotor punching, is characterized in that, described rotor punching is circular;
Described rotor punching comprises circular yoke portion, and from yoke portion along described rotor punching radially extend 27 rotor tooths; Between two adjacent rotor tooths, form rotor.
2. rotor punching according to claim 1, is characterized in that, the width of rebate C of described rotor is 0.4mm～1.0mm;
The groove top radius R 1 of described rotor is 1.5mm～1.8mm;
The bottom radius R2 of described rotor is 0.5mm～1.0mm;
The interior high H of described rotor is 5mm～10mm.
3. rotor punching according to claim 1, is characterized in that, the outside diameter Φ A of described rotor punching is 40mm～50mm, and the inner circle diameter of phi B of described rotor punching is 6mm～12mm.
4. according to the rotor punching described in claim 1～3 any one, it is characterized in that, the yoke portion of described rotor punching is provided with some clips.
5. rotor punching according to claim 4, is characterized in that, described clip is riveting button, and the number of described riveting button is 3 or 4.
6. a rotor core, is characterized in that, described rotor core is overrided to form by the rotor punching described in multi-disc claim 1～5 any one.
7. rotor core according to claim 6, is characterized in that, on the periphery of described rotor core, is provided with skewed slot.
8. rotor core according to claim 7, is characterized in that, described skewed slot is linear skewed slot;
The skew width W of described linear skewed slot is 1.0～2.5 times of described rotor slot-pitch L.
9. rotor core according to claim 7, is characterized in that, described skewed slot is V-arrangement skewed slot;
The angle of described V-arrangement skewed slot is 123 °～160 °.
10. a motor, comprises stator core, and is arranged on the rotor core in stator core inner circle, it is characterized in that, described rotor core is the rotor core described in claim 6～9 any one;
Described stator core is overrided to form by multi-disc stator punching, and the stator slot of described stator punching is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173458.2U CN203911608U (en) | 2014-04-10 | 2014-04-10 | Rotor sheet, rotor core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173458.2U CN203911608U (en) | 2014-04-10 | 2014-04-10 | Rotor sheet, rotor core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911608U true CN203911608U (en) | 2014-10-29 |
Family
ID=51785854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420173458.2U Expired - Fee Related CN203911608U (en) | 2014-04-10 | 2014-04-10 | Rotor sheet, rotor core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911608U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638849A (en) * | 2015-02-16 | 2015-05-20 | 武汉华大新型电机科技股份有限公司 | Method for processing stator and rotor punch sheets capable of reducing motor toothed groove torque and torque ripple |
| CN106059233A (en) * | 2016-05-31 | 2016-10-26 | 德州杰诺新能源有限公司 | Ultra effective new energy automobile motor |
| CN108377045A (en) * | 2018-04-25 | 2018-08-07 | 广东威灵电机制造有限公司 | The rotor of motor and motor with it |
| CN108696052A (en) * | 2017-04-07 | 2018-10-23 | 德昌电机(深圳)有限公司 | Cooling fan module |
-
2014
- 2014-04-10 CN CN201420173458.2U patent/CN203911608U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638849A (en) * | 2015-02-16 | 2015-05-20 | 武汉华大新型电机科技股份有限公司 | Method for processing stator and rotor punch sheets capable of reducing motor toothed groove torque and torque ripple |
| CN106059233A (en) * | 2016-05-31 | 2016-10-26 | 德州杰诺新能源有限公司 | Ultra effective new energy automobile motor |
| CN108696052A (en) * | 2017-04-07 | 2018-10-23 | 德昌电机(深圳)有限公司 | Cooling fan module |
| CN108377045A (en) * | 2018-04-25 | 2018-08-07 | 广东威灵电机制造有限公司 | The rotor of motor and motor with it |
| CN108377045B (en) * | 2018-04-25 | 2024-01-05 | 广东威灵电机制造有限公司 | Rotor of motor and motor with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202840705U (en) | Stator for DC (direct-current) motor and DC motor with the stator | |
| MX2016005773A (en) | Single-phase outer-rotor motor and electric apparatus having the same. | |
| CN203911608U (en) | Rotor sheet, rotor core and motor | |
| MX2016004061A (en) | Single-phase brushless motor. | |
| CN103929026B (en) | Magneto | |
| CN103887948A (en) | Built-in permanent magnet steel hub driving motor of electric vehicle | |
| EP3032720A3 (en) | Single phase brushless motor | |
| CN203574521U (en) | Three-phase brushless direct current motor | |
| CN103580436A (en) | Permanent magnet coreless brushless sensorless disk type direct-current motor | |
| CN204465161U (en) | A kind of single-phase transverse flux machine | |
| CN203911601U (en) | Stator punching sheet, stator core and motor | |
| IN2014DN08212A (en) | ||
| CN204992831U (en) | Rotor punching, rotor core and motor | |
| CN103746483A (en) | Built-in permanent magnet rotor driving motor of electric automobile | |
| CN104184284A (en) | Double-magnetic-circuit asynchronous-starting permanent magnet synchronous motor rotor | |
| CN202721588U (en) | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties | |
| CN204103723U (en) | Electric automobile permanent magnet hybrid magnetic path motor | |
| CN103269136A (en) | Motor | |
| CN202721518U (en) | Rotor punching sheet, rotor iron core and motor | |
| CN203522372U (en) | Brushless direct current motor rotor | |
| CN204349617U (en) | A kind of rotor structure of permanent magnet iron coreless motor | |
| CN205335992U (en) | 200kW tombarthite permanent magnet generator stator is towards piece | |
| CN103762810A (en) | Hidden magnetic pole rare-earth permanent magnet drive motor for electric automobile | |
| CN102856999B (en) | Mixed-rotor reluctance motor | |
| CN202488325U (en) | Three-phase brushless direct current motor stator iron core for ceiling fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210410 |