CN204992831U - Rotor punching, rotor core and motor - Google Patents
Rotor punching, rotor core and motor Download PDFInfo
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- CN204992831U CN204992831U CN201520734080.3U CN201520734080U CN204992831U CN 204992831 U CN204992831 U CN 204992831U CN 201520734080 U CN201520734080 U CN 201520734080U CN 204992831 U CN204992831 U CN 204992831U
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- rotor
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- rotor punching
- arc section
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Abstract
The utility model discloses a rotor punching, rotor core and motor has solved that motor sound can to appear great to produce great noise, also lead to motor operating efficiency not high. Its technical scheme main points are including 18 teeth, form the groove in two adjacent teeth, the groove includes that two adjacent profiles of tooth become parallel and cut edge, and parallel side cut lower extreme has the first circular arc section that the diameter is 1.5mm -1.6mm, first circular arc section and parallel side cut the groove is close to department of yoke portion and is provided with the second circular arc section of diameter for 0.8mm -0.9mm. Reached the groove that the groove that forms simultaneously has corresponding shape, it is just more relatively by the magnetic line of force of stator winding cutting to make the rotor air gap reach the stator, has effectively improved the magnetic energy utilization ratio, behind the rotor chute, can weaken the produced harmonic electromotive force in tooth harmonic magnetic field effectively to weakening reduces electric magnetic vibration and noise by the additional torque that these harmonic magnetic fields arouse, it has increased the efficiency of motor to operate steadily.
Description
Technical field
The utility model relates to machine field, and in particular, it relates to a kind of rotor punching, rotor core and motor.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, and existing motor has stator and rotor, and armature spindle is installed in the rotor and rotate with the rotation of rotor, and outputting power thus.Divide by the position relationship of rotor and stator, existing motor is divided into inner rotor type motor and external rotor electric machine, and the rotor of inner rotor type motor is arranged in stator, and external rotor electric machine is then that stator is arranged in rotor.Usually, inner rotor type motor has housing and is positioned at the end cap at housing two ends, and housing and end cap surround a cavity, and stator and rotor are arranged in cavity, and stator has stator core and is wrapped in the coil on stator core.The middle part of stator has rotor installing hole, and rotor is arranged in rotor installing hole, and can rotate relative to stator.Armature spindle is arranged in rotor, and with rotor interference fit.In the motor of air-conditioning, microwave oven internal, usually the motor using relatively high power is needed, in the middle of the process of the machine operation of relatively high power, because the Distribution of Magnetic Field on stator core and rotor core is uneven, situation about vibrating easily is there is when causing motor to run, there will be motor sound comparatively large, and produce larger noise, also cause motor operational efficiency not high.In order to improve motor operational efficiency, usual employing increases winding quantity or stator core, the mode such as thickness of rotor core improves magnetic loading, not only noise pollution is caused like this by causing the production cost of motor significantly to improve, and electric efficiency is not high, and air-conditioning and the usual space disposed in the interior of microwave oven, the noise sent can have influence on people and have a rest normally.
Utility model content
According to the deficiencies in the prior art, the utility model provides a kind of rotor punching, rotor core and motor, has and reduces electric and magnetic oscillation and noise, improves the effect of electric efficiency.
For achieving the above object, the utility model provides following technical scheme: a kind of rotor punching, multiple teeth that described rotor punching comprises circular yoke portion and extends along the radial direction of described rotor punching to circumferencial direction from described yoke portion, groove is formed between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, it comprises 18 teeth, groove is formed in two adjacent teeth, described groove comprises two adjacent teeth and forms parallel trimming, parallel trimming lower end has the first arc section that diameter is 1.5mm-1.6mm, described groove is provided with the second arc section that diameter is 0.8mm-0.9mm near place of yoke portion.
Further, the distance between the parallel trimming of described groove is 0.8mm.
Further, described first arc section and the second arc section are connected with the linkage section that opening angle is 20 °.
Rotor core, is overrided to form by rotor punching, and described rotor punching offset angular laminates thus forms skewed slot bar at rotor core sidepiece.
Motor, comprise stators and rotators, described rotor has rotor core, described rotor core is overrided to form by multi-disc rotor punching, multiple teeth that described rotor punching comprises circular yoke portion and extends along the radial direction of described rotor punching to circumferencial direction from described yoke portion, groove is formed between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, comprise 18 teeth, groove is formed in two adjacent teeth, described groove comprises two adjacent teeth and forms parallel trimming, parallel trimming lower end has the first arc section that diameter is 1.5mm-1.6mm, described groove is provided with the second arc section that diameter is 0.8mm-0.9mm near place of yoke portion.
Further, the surface of described rotor punching has clip.
The beneficial effects of the utility model are, after rotor chute, the electromagnetic torque formed and induced electromotive force are similar to same roots rotor sliver and are evenly distributed on mean value in one section of circumference range, effectively can weaken the harmonic wave electromotive force that harmony wave produces, thus weaken the additional torque caused by these harmonic fields, reduce electric and magnetic oscillation and noise, operate steadily and add the efficiency of motor.The groove simultaneously formed has the special size of the groove of respective shapes, the magnetic line of force that rotor airgap arrival stator is cut by stator winding is just relatively many, effectively improve magnetic energy utilization rate, when motor runs, on stator core and rotor core, magnetic density is comparatively even, thus noise and vibration when reducing motor operation.
Accompanying drawing explanation
Fig. 1 is the rotor core schematic diagram of the utility model rotor punching, rotor core and motor embodiment;
Fig. 2 is the schematic diagram of the rotor punching of the utility model rotor punching, rotor core and motor embodiment;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Description of reference numerals: 1, rotor punching; 11, tooth; 12, groove; 12a, the first arc section; 12b, the second arc section; 12c, linkage section; 12d, parallel trimming; 13, yoke portion; 14, clip; 2, rotor core; 21, skewed slot bar.
Embodiment
Be described further with reference to accompanying drawing 1 to 3 pair of the utility model rotor punching, rotor core and motor embodiment.
The motor of the present embodiment has housing and is positioned at the end cap of housing both sides, housing and end cap surround a cavity, are provided with stator and rotor in cavity, and stator has stator core and is embedded into the coil on stator core, rotor is arranged in stator, and can rotate relative to stator.Armature spindle is arranged in rotor, and with rotor interference fit, armature spindle rotates under the drive of rotor, and outside outputting power.
Rotor core 2, the rotor punching 1 identical by shape is overrided to form, and described rotor punching 1 offset angular laminates thus forms skewed slot bar 21 at rotor core 2 sidepiece.After rotor chute, the electromagnetic torque formed and induced electromotive force are similar to same roots rotor sliver and are evenly distributed on mean value in one section of circumference range, effectively can weaken the harmonic wave electromotive force that tooth 11 harmonic field produces, thus weaken the additional torque caused by these harmonic fields, reduce electric and magnetic oscillation and noise, operate steadily and add the efficiency of motor.
A kind of rotor punching 1, also referred to as silicon steel sheet, the outside diameter of rotor punching 1 is 29.6mm, multiple teeth 11 that rotor punching 1 comprises circular yoke portion 13 and extends along the radial direction of rotor punching 1 to circumferencial direction from described yoke portion 13, groove 12 is formed between two adjacent teeth 11, and described rotor punching 1 has the interior circular hole of hollow, the diameter of interior circular hole can be 6mm, 5mm or 4mm, interior circular hole comprises 18 teeth 11, groove 12 is formed in two adjacent teeth 11, groove 12 is corresponding is also 18, groove 12 comprises two adjacent teeth 11 and forms parallel trimming 12d, distance between parallel trimming 12d is a steady state value, for 0.8mm, parallel trimming 12d lower end has the first arc section 12a that diameter is 1.5mm-1.6mm, the diameter of preferred 1.52mm in the middle of the present embodiment, first arc section 12a is divided into two sections, two section of first arc section 12a is connected by the circular arc that diameter is 0.3mm with parallel trimming 12d, groove 12 is provided with the second arc section 12b that diameter is 0.8mm-0.9mm near place of yoke portion 13, the second arc section 12b of 0.9mm is preferentially selected in the middle of the present embodiment, linkage section 12c is connected with between first arc section 12a and the second arc section 12b, linkage section 12c is two places, article two, linkage section 12c forms the angle of 20 °, the length in linkage section 12c direction on is vertically 3.55mm.The yoke portion 13 of every a slice rotor punching 1 all has 3 clips 14, and clip 14 is evenly circumferentially arranged along the center of rotor punching 1.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Although more employ the terms such as rotor punching, tooth, groove, the first arc section, the second arc section, linkage section, parallel trimming, yoke portion, clip, rotor core, skewed slot herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (6)
1. a rotor punching, multiple teeth that described rotor punching comprises circular yoke portion and extends along the radial direction of described rotor punching to circumferencial direction from described yoke portion, form groove between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, it is characterized in that:
Comprise 18 teeth, groove is formed in two adjacent teeth, described groove comprises two adjacent teeth and forms parallel trimming, parallel trimming lower end has the first arc section that diameter is 1.5mm-1.6mm, and the first arc section and groove described in parallel trimming are provided with the second arc section that diameter is 0.8mm-0.9mm near place of yoke portion.
2. rotor punching according to claim 1, is characterized in that: the distance between the parallel trimming of described groove is 0.8mm.
3. rotor punching according to claim 1, is characterized in that: described first arc section and the second arc section are connected with the linkage section that opening angle is 20 °.
4. rotor core, is overrided to form by claim 1-3 any one rotor punching, and described rotor punching offset angular laminates thus forms skewed slot bar at rotor core sidepiece.
5. motor, comprise stators and rotators, described rotor has rotor core, described rotor core is overrided to form by multi-disc rotor punching, multiple teeth that described rotor punching comprises circular yoke portion and extends along the radial direction of described rotor punching to circumferencial direction from described yoke portion, groove is formed between two adjacent teeth, and described rotor punching has the interior circular hole of hollow, it is characterized in that: comprise 18 teeth, groove is formed in two adjacent teeth, described groove comprises two adjacent teeth and forms parallel trimming, parallel trimming lower end has the first arc section that diameter is 1.5mm-1.6mm, described groove is provided with the second arc section that diameter is 0.8mm-0.9mm near place of yoke portion.
6. motor according to claim 5, is characterized in that: the surface of described rotor punching has clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734080.3U CN204992831U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734080.3U CN204992831U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992831U true CN204992831U (en) | 2016-01-20 |
Family
ID=55127156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734080.3U Active CN204992831U (en) | 2015-09-21 | 2015-09-21 | Rotor punching, rotor core and motor |
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| Country | Link |
|---|---|
| CN (1) | CN204992831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980809A (en) * | 2019-05-06 | 2019-07-05 | 佛山市顺德区一虎电子科技有限公司 | A kind of motor with oblique charged magnet |
| CN112230055A (en) * | 2020-07-07 | 2021-01-15 | 北京新能源汽车技术创新中心有限公司 | Built-in permanent magnet rotor magnetic field harmonic detection device and detection method |
| CN117674518A (en) * | 2023-12-06 | 2024-03-08 | 佛山市南海区绿智电机设备有限公司 | Stator and rotor iron core, rust-proof process and rust-proof equipment |
-
2015
- 2015-09-21 CN CN201520734080.3U patent/CN204992831U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980809A (en) * | 2019-05-06 | 2019-07-05 | 佛山市顺德区一虎电子科技有限公司 | A kind of motor with oblique charged magnet |
| CN112230055A (en) * | 2020-07-07 | 2021-01-15 | 北京新能源汽车技术创新中心有限公司 | Built-in permanent magnet rotor magnetic field harmonic detection device and detection method |
| CN117674518A (en) * | 2023-12-06 | 2024-03-08 | 佛山市南海区绿智电机设备有限公司 | Stator and rotor iron core, rust-proof process and rust-proof equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |