CN105119402A - Motor rotor and motor therewith - Google Patents
Motor rotor and motor therewith Download PDFInfo
- Publication number
- CN105119402A CN105119402A CN201510575151.4A CN201510575151A CN105119402A CN 105119402 A CN105119402 A CN 105119402A CN 201510575151 A CN201510575151 A CN 201510575151A CN 105119402 A CN105119402 A CN 105119402A
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- rotor
- rotor punching
- punching
- motor
- sheet
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Abstract
The invention discloses a motor rotor and a motor therewith, and the rotor comprises a rotor core. The rotor core consists of a first rotor punching sheet, or is formed by the lamination of the first rotor punching sheet and a second rotor punching sheet. The first rotor punching sheet comprises a first body, a plurality of first rotor sheets which are arranged at intervals in the peripheral direction of the first body, and a first magnetic bridge which is connected between the first body and the corresponding first rotor sheet. The second rotor punching sheet comprises a plurality of second rotor sheets which are arranged at intervals in the peripheral direction, and also comprises second magnetic bridges which are respectively connected between the outer ends of adjacent two rotor sheets. According to the invention, the rotor core consists of the first rotor punching sheet with the first magnetic bridge, or is formed by the lamination of the first rotor punching sheet with the first magnetic bridge, and the second rotor punching sheet with the second magnetic bridge, thereby reducing the magnetic leakage, and improving the performance of the rotor.
Description
Technical field
The present invention relates to technical field of motors, especially relate to a kind of rotor for motor and there is its motor.
Background technology
In correlation technique, in the rotor core of motor, there is outer magnetic bridge and interior magnetic bridge, thus provide path for leakage field, and then cause the reduction of electric efficiency.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of rotor for motor, and the structure of this rotor is simple, leakage field is few.
Another object of the present invention is to propose a kind of motor with above-mentioned rotor.
The rotor for motor of embodiment according to a first aspect of the present invention, comprise: rotor core, described rotor core is by the first rotor punching, or the first rotor punching and the second rotor punching is stacked forms, wherein said the first rotor punching comprises the first noumenon, multiple the first rotor sheets of spaced apart setting in the peripheral direction of described the first noumenon, and the first magnetic bridge be connected between described the first noumenon and the described the first rotor sheet of correspondence, described second rotor punching comprises multiple second rotor sheets of spaced apart setting in the circumferential, the second magnetic bridge between the outer end being connected to adjacent two described second rotor sheets.
According to the rotor for motor of the embodiment of the present invention, by making the rotor core of rotor by having the first rotor punching of the first magnetic bridge or having the first rotor punching of the first magnetic bridge and have that the second rotor punching of the second magnetic bridge is stacked to be formed, can leakage field be reduced thus, thus improve the performance of rotor.
According to some embodiments of the present invention, the periphery wall of described the first noumenon is provided with multiple support portions of spaced apart setting, has one or more described support portion between adjacent two described first magnetic bridges.
According to some embodiments of the present invention, described rotor core is by multiple described the first rotor punching and multiple described second rotor punching is stacked forms.
According to one embodiment of present invention, the axial two ends of described multiple the first rotor punching have multiple described second rotor punching respectively.
According to another embodiment of the invention, the axial two ends of described multiple second rotor punching have multiple described the first rotor punching respectively.
According to still a further embodiment, described multiple the first rotor punching and described multiple second rotor punching interlaced arrangement.
According to some embodiments of the present invention, described multiple the first rotor sheet is uniform intervals distribution in the circumference of described the first noumenon, the circumferentially uniform intervals distribution of described multiple second rotor sheet.
According to some embodiments of the present invention, described the first rotor punching and described second rotor punching are respectively syllogic and cut arc structure or circular arc cuts arc structure.
The motor of embodiment according to a second aspect of the present invention, comprises the rotor for motor according to above-mentioned first aspect embodiment.
According to the motor of the embodiment of the present invention, by being provided with above-mentioned rotor, can leakage field be reduced thus, thus the performance of motor can be improved.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the first rotor punching of the rotor for motor according to the embodiment of the present invention;
Fig. 2 is the structural representation of the second rotor punching of the rotor for motor according to the embodiment of the present invention;
Fig. 3 is the structural representation of the rotor for motor according to the embodiment of the present invention;
Fig. 4 is in accordance with another embodiment of the present invention for the structural representation of the rotor of motor;
Fig. 5 is the structural representation of the rotor for motor according to another embodiment of the present invention.
Reference numeral:
Rotor 100, rotor core 1, permanent magnet 2,
The first rotor punching 11, the first noumenon 111, the first rotor sheet 112, first magnetic bridge 113, support portion 114, rotor shaft hatch 115, the first installing hole 116,
Second rotor punching 12, second rotor sheet 121, second magnetic bridge 122, second installing hole 123.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " length ", "left", "right", " interior ", " outward ", " axis ", " radial direction ", " circumference " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
The rotor 100 for motor according to the embodiment of the present invention is described in detail below with reference to Fig. 1-Fig. 5.
As Figure 1-Figure 5, the rotor 100 for motor of embodiment, comprises rotor core 1 according to a first aspect of the present invention.Wherein, rotor 100 may be used in motor, such as interior permanent magnet machines, but is not limited thereto.Further, above-mentioned rotor 100 can also comprise permanent magnet 2, armature spindle (scheming not shown).
Specifically, rotor core 1 is by the first rotor punching 11 or the first rotor punching 11 with the second rotor punching 12 is stacked forms.That is, rotor core 1 can only form by the first rotor punching 11 is stacked, and rotor core 1 also can by the first rotor punching 11 and the second rotor punching 12 be jointly stacked forms.
Wherein, as shown in Figure 1, the first rotor punching 11 comprise the first noumenon 111, multiple the first rotor sheet 112 of spaced apart setting in the peripheral direction of the first noumenon 111 and be connected to the first noumenon 111 and correspondence the first rotor sheet 112 between the first magnetic bridge 113.That is, magnetic bridge in the first rotor punching 11 only comprise be connected to the first noumenon 111 and correspondence the first rotor sheet 112 between the first magnetic bridge 113, be equivalent to the interior magnetic bridge remained on traditional rotor core, and outer magnetic bridge is cancelled, can leakage field be reduced thus.Alternatively, multiple the first rotor sheet 112 in the circumference of the first noumenon 111 uniform intervals distribution, the structure of the first rotor punching 11 can be made thus well-balanced, thus when rotor 100 rotates uniform force.
Such as, in the example of fig. 1, the first noumenon 111 is also provided with rotor shaft hatch 115, rotor shaft hatch 115 is for installing armature spindle.In the peripheral direction of the first noumenon 111, uniform intervals is offered and is equipped with eight the first rotor sheets 112, is provided with the first installing hole 116, first installing hole 116 for installing permanent magnet 2 between adjacent the first rotor sheet 112.Outwards through in the radial direction at the first noumenon 111 of first installing hole 116, does not have magnetic bridge to connect between the outer end of namely adjacent the first rotor sheet 112, can reduce leakage field thus.
As shown in Figure 2, the second rotor punching 12 comprises the second magnetic bridge 122 between multiple second rotor sheet 121 of spaced apart setting in the circumferential and the outer end being connected to adjacent two the second rotor sheets 121.That is, the magnetic bridge in the second rotor punching 12 only comprises the second magnetic bridge 122 between the outer end being connected to adjacent two the second rotor sheets 121, is equivalent to the outer magnetic bridge remained on traditional rotor core, and is cancelled by interior magnetic bridge, can reduce leakage field thus.Alternatively, multiple second rotor sheet 121 can, along the distribution of the second rotor punching 12 circumferential uniform intervals, can make the structure of the second rotor punching 12 well-balanced thus, thus when rotor 100 rotates uniform force.
Such as, in the figure 2 example, in the circumference of the second rotor punching 12, uniform intervals is offered and is equipped with eight the second rotor sheets 121, is spaced apart from each other to limit the second installing hole 123, second installing hole 123 for installing permanent magnet 2 between the second adjacent rotor sheet 121.Inwardly through in the radial direction at the second rotor punching 12 of second installing hole 123, does not have magnetic bridge to connect between the inner of the second namely adjacent rotor sheet 121, can reduce leakage field thus.
According to the rotor 100 for motor of the embodiment of the present invention, by making the rotor core 1 of rotor 100 by having the first rotor punching 11 of the first magnetic bridge 113 or having the first rotor punching 11 of the first magnetic bridge 113 and have that the second rotor punching 12 of the second magnetic bridge 122 is stacked to be formed, can leakage field be reduced thus, thus improve the performance of rotor 100.
According to some embodiments of the present invention, as shown in Figure 1, the periphery wall of the first noumenon 111 is provided with multiple support portions 114 of spaced apart setting, and have one or more support portion 114 between adjacent two the first magnetic bridges 113, support portion 114 is for supports permanent magnets 2.Such as, in the example of fig. 1, the periphery wall of the first noumenon 111 is provided with eight support portions 114 of spaced apart setting, between adjacent two the first magnetic bridges 113, there is a support portion 114, each support portion 114 is positioned at the inner of the first installing hole 116, and support portion 114 is for supporting the permanent magnet 2 in installation first installing hole 116.In addition, direction radially increases each support portion 114 length in the circumferential, can increase the contact area of permanent magnet 2 and each support portion 114 thus, thus permanent magnet 2 can be made more firmly to be arranged in the first installing hole 116.Be understandable that, according to the size of permanent magnet 2, between adjacent two the first magnetic bridges 113, multiple support portion 114 can be set, namely multiple support portion 114 is provided with in each first installing hole 116, more firmly can support corresponding permanent magnet 2 thus, also make the shape of support portion 114 can be more flexible and changeable.
According to some embodiments of the present invention, as shown in Figure 3-Figure 5, rotor core 1 is by multiple the first rotor punching 11 and multiple second rotor punching 12 is stacked forms, and can reduce leakage field thus while guarantee rotor 100 intensity.Be understandable that, multiple the first rotor punching 11 is stacked to rotor core 1 in the axial direction with multiple second rotor punching 12, the first installing hole 116 thus in the first rotor punching 11 and the second installing hole 123 on the second rotor punching 12 form the mounting groove that runs through rotor core 1 in the axial direction, and permanent magnet 2 is mounted in above-mentioned mounting groove.Alternatively, the quantity of the first rotor punching 11 and the second rotor punching 12 can be the same or different, and the external diameter of the first rotor punching 11 and the external diameter of the second rotor punching 12 can be the same or different.
In one of them embodiment of the present invention, as shown in Figure 3, axis (such as, the left and right directions in Fig. 3 the is axial direction) two ends of multiple the first rotor punching 11 have multiple second rotor punching 12 respectively, can reduce leakage field thus while guarantee rotor 100 intensity.It should be noted that, the external diameter of now the first rotor punching 11 can be identical with the external diameter of the second rotor punching 12, and the external diameter being positioned at middle the first rotor punching 11 also can be slightly less than the external diameter of the second rotor punching 12 or slightly large.
In another embodiment of the present invention, as shown in Figure 4, axis (such as, the left and right directions in Fig. 4 the is axial direction) two ends of multiple second rotor punching 12 have multiple the first rotor punching 11 respectively, can reduce leakage field thus while guarantee rotor 100 intensity.It should be noted that, now the external diameter of the second rotor punching 12 can be identical with the external diameter of the first rotor punching 11, and the external diameter being positioned at the second middle rotor punching 12 also can be slightly less or slightly large than the external diameter of the first rotor punching 11.
In yet another embodiment of the present invention, as shown in Figure 5, multiple the first rotor punching 11 and multiple second rotor punching 12 interlaced arrangement.Such as, in the example of hgure 5, rotor core 1 is alternately arranged by multiple the first rotor punching 11 is adjacent with multiple second rotor punching 12.That is, there is one or more second rotor punching 12 between two the first rotor punchings 11, similarly, between two the second rotor punchings 12, there is one or more the first rotor punching 11.
It should be noted that, the stacked manner of the first rotor punching 11 and the second rotor punching 12 includes but not limited to the stacked manner that above-described embodiment or example describe.
According to some embodiments of the present invention, as Figure 1-Figure 5, the first rotor punching 11 and the second rotor punching 12 are respectively syllogic and cut arc structure or circular arc cuts arc structure.That is, the first rotor punching 11 and the second rotor punching 12 can adopt syllogic to cut arc respectively and form syllogic and cut arc structure or adopt circular arc cut arc and form circular arc and cut arc structure.Thus, can reduced harmonic, improve the performance of rotor 100.Alternatively, the arc mode of cutting of the first rotor punching 11 and the second rotor punching 12 can be the same or different.
It should be noted that, the first rotor punching 11 and the second rotor punching 12 are before carrying out cutting arc, the outer peripheral center of curvature of each the first rotor sheet 112 in the first rotor punching 11 is all positioned at the center of the first rotor punching 11, i.e. the outer peripheral center of curvature of each the first rotor sheet 112 and the center superposition of the first rotor punching 11; Similarly, the outer peripheral center of curvature of each second rotor sheet 121 in the second rotor punching 12 is all positioned at the center of the second rotor punching 12, i.e. the outer peripheral center of curvature of each second rotor sheet 121 and the center superposition of the second rotor punching 12.
It is the outward flange of each second rotor sheet 121 in the outward flange of each the first rotor sheet 112 in the first rotor punching 11 or the second rotor punching 12 is whittled into the curve that three sections of centers of curvature do not overlap that syllogic cuts arc, and the center of curvature of above-mentioned three sections of curves has a center of departing from the first rotor punching 11 or the second rotor punching 12 at least.It is that the outward flange of each second rotor sheet 121 in the outward flange of each the first rotor sheet 112 in the first rotor punching 11 or the second rotor punching 12 is whittled into one section of curve that circular arc cuts arc, and the center of curvature of this curve departs from the center of the first rotor punching 11 or the second rotor punching 12.
The motor of embodiment according to a second aspect of the present invention, comprises the rotor 100 for motor according to above-mentioned first aspect embodiment.
According to the motor of the embodiment of the present invention, by being provided with above-mentioned rotor 100, can leakage field be reduced thus, thus the performance of motor can be improved.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. for a rotor for motor, it is characterized in that, comprising:
Rotor core, described rotor core is by the first rotor punching or the first rotor punching and the second rotor punching is stacked forms, wherein said the first rotor punching comprises the first noumenon, multiple the first rotor sheet of spaced apart setting in the peripheral direction of described the first noumenon and the first magnetic bridge of being connected between described the first noumenon and the described the first rotor sheet of correspondence, multiple second rotor sheets that described second rotor punching comprises spaced apart setting in the circumferential, be connected to adjacent two described second rotor sheets outer end between the second magnetic bridge.
2. the rotor for motor according to claim 1, is characterized in that, the periphery wall of described the first noumenon is provided with multiple support portions of spaced apart setting, has one or more described support portion between adjacent two described first magnetic bridges.
3. the rotor for motor according to claim 1 and 2, is characterized in that, described rotor core is by multiple described the first rotor punching and multiple described second rotor punching is stacked forms.
4. the rotor for motor according to claim 3, is characterized in that, the axial two ends of described multiple the first rotor punching have multiple described second rotor punching respectively.
5. the rotor for motor according to claim 3, is characterized in that, the axial two ends of described multiple second rotor punching have multiple described the first rotor punching respectively.
6. the rotor for motor according to claim 3, is characterized in that, described multiple the first rotor punching and described multiple second rotor punching interlaced arrangement.
7. the rotor for motor according to claim 1, is characterized in that, described multiple the first rotor sheet is uniform intervals distribution in the circumference of described the first noumenon, the circumferentially uniform intervals distribution of described multiple second rotor sheet.
8. the rotor for motor according to claim 1, is characterized in that, described the first rotor punching and described second rotor punching are respectively syllogic and cut arc structure or circular arc cuts arc structure.
9. a motor, is characterized in that, comprises the rotor for motor according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575151.4A CN105119402A (en) | 2015-09-11 | 2015-09-11 | Motor rotor and motor therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575151.4A CN105119402A (en) | 2015-09-11 | 2015-09-11 | Motor rotor and motor therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105119402A true CN105119402A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510575151.4A Pending CN105119402A (en) | 2015-09-11 | 2015-09-11 | Motor rotor and motor therewith |
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| CN (1) | CN105119402A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332377A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Rotor and motor and compressor with the rotor |
| CN107659012A (en) * | 2017-10-25 | 2018-02-02 | 常州威灵电机制造有限公司 | Rotor punching, rotor and motor |
| CN108418324A (en) * | 2018-02-26 | 2018-08-17 | 广东威灵电机制造有限公司 | Permanent magnet machine rotor, magnetizing equipment, preparation method and magneto |
| CN108667172A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor and the method for manufacturing rotor |
| CN108667171A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor |
| CN108667173A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor |
| CN108718124A (en) * | 2018-05-31 | 2018-10-30 | 广东威灵电机制造有限公司 | Rotor core, rotor and motor |
| CN108808922A (en) * | 2018-05-31 | 2018-11-13 | 广东威灵电机制造有限公司 | Rotor core and motor |
| CN110311491A (en) * | 2019-06-27 | 2019-10-08 | 北京理工大学 | A kind of efficient permanent magnet motor with low magnetism leakage flex rotor |
| CN110875659A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Rotary motor rotor, motor and compressor |
| CN111200322A (en) * | 2018-11-20 | 2020-05-26 | 日本电产株式会社 | Rotor and motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667172A (en) * | 2017-03-29 | 2018-10-16 | 大陆汽车电子(芜湖)有限公司 | The rotor and brushless motor of brushless motor and the method for manufacturing rotor |
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| CN107332377B (en) * | 2017-07-31 | 2019-10-18 | 广东威灵电机制造有限公司 | Rotor and motor and compressor with the rotor |
| CN107332377A (en) * | 2017-07-31 | 2017-11-07 | 广东威灵电机制造有限公司 | Rotor and motor and compressor with the rotor |
| CN107659012A (en) * | 2017-10-25 | 2018-02-02 | 常州威灵电机制造有限公司 | Rotor punching, rotor and motor |
| CN108418324A (en) * | 2018-02-26 | 2018-08-17 | 广东威灵电机制造有限公司 | Permanent magnet machine rotor, magnetizing equipment, preparation method and magneto |
| CN108718124A (en) * | 2018-05-31 | 2018-10-30 | 广东威灵电机制造有限公司 | Rotor core, rotor and motor |
| CN108808922A (en) * | 2018-05-31 | 2018-11-13 | 广东威灵电机制造有限公司 | Rotor core and motor |
| CN108718124B (en) * | 2018-05-31 | 2020-06-30 | 广东威灵电机制造有限公司 | Rotor core, rotor and motor |
| CN110875659A (en) * | 2018-08-30 | 2020-03-10 | 广东美芝制冷设备有限公司 | Rotary motor rotor, motor and compressor |
| CN111200322A (en) * | 2018-11-20 | 2020-05-26 | 日本电产株式会社 | Rotor and motor |
| US11201513B2 (en) | 2018-11-20 | 2021-12-14 | Nidec Corporation | Rotor and motor |
| CN111200322B (en) * | 2018-11-20 | 2022-07-01 | 日本电产株式会社 | Rotor and motor |
| CN110311491A (en) * | 2019-06-27 | 2019-10-08 | 北京理工大学 | A kind of efficient permanent magnet motor with low magnetism leakage flex rotor |
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Application publication date: 20151202 |