CN104753218A - Rotor component and motor with same - Google Patents
Rotor component and motor with same Download PDFInfo
- Publication number
- CN104753218A CN104753218A CN201510184175.7A CN201510184175A CN104753218A CN 104753218 A CN104753218 A CN 104753218A CN 201510184175 A CN201510184175 A CN 201510184175A CN 104753218 A CN104753218 A CN 104753218A
- Authority
- CN
- China
- Prior art keywords
- magnet ring
- section
- rotor assembly
- coordinates
- armature spindle
- 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.)
- Granted
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a rotor component and a motor with the same. The rotor component comprises a rotor shaft, a busing and a magnetic ring, the rotor shaft has a first end and a second end, the bushing has a shaft matching section and a magnetic ring matching section, the shaft matching section is mounted at the first end of the rotor shaft in a sleeved manner while the magnetic ring matching section is positioned on the outer side of a first end face of the rotor shaft, and the magnetic ring is mounted on the magnetic ring matching section in a sleeved manner. The magnetic ring is arranged on the magnetic ring matching section, so that cracking of the magnetic ring can be prevented, reliability of the rotor component is improved, and service life of the rotor component is prolonged.
Description
Technical field
The present invention relates to technical field of motor manufacture, especially relate to a kind of rotor assembly and there is its motor.
Background technology
In correlation technique, the magnet ring mode be installed on armature spindle is that interference fit is pressed on armature spindle, and interference fit can cause magnetic ring inner hole be subject to the power of outwards expansion and ftracture.When machine operation rotates, under the influence of centrifugal force, magnet ring cracking increases until break completely, and come off from armature spindle, now control circuit cannot detect rotor-position, causes motor to work.
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 assembly, and the reliability of described rotor assembly is high.
Another object of the present invention is to propose a kind of motor with above-mentioned rotor assembly.
The rotor assembly of embodiment according to a first aspect of the present invention, comprising: armature spindle, and described armature spindle has first end and the second end; Lining, described lining has axle and coordinates section and magnet ring to coordinate section, and described axle coordinates section to be sleeved on the first end of described armature spindle and described magnet ring coordinates section to be positioned at the outside of the first end face of described armature spindle; And magnet ring, described magnet ring is sleeved on described magnet ring and coordinates in section.
According to the rotor assembly of the embodiment of the present invention, coordinating in section by magnet ring being arranged on magnet ring, can prevent magnet ring from occurring the phenomenon of cracking, thus improve the reliability of rotor assembly, extending the useful life of rotor assembly.
Alternatively, described axle coordinates the external diameter of section to be less than or greater than the external diameter of described magnet ring cooperation section.
Alternatively, described axle coordinates the internal diameter of section to be greater than or less than the internal diameter of described magnet ring cooperation section.
Alternatively, described axle coordinates the groove internal perisporium of section being formed with contiguous described magnet ring cooperation section.
Further alternatively, described groove directly adjoins with the described magnet ring section of cooperation.
Alternatively, described magnet ring coordinates on the periphery wall of section and is formed with net form groove.
Alternatively, described lining is metalwork and described magnet ring is nonmetal parts.
Further alternatively, described lining is copper piece.
Alternatively, the length of section is coordinated to be less than the length of described axle cooperation section at the axially described magnet ring of described magnet ring.
The motor of embodiment according to a second aspect of the present invention, comprises the rotor assembly according to the above-mentioned first aspect embodiment of the present invention.
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 schematic diagram of the rotor assembly according to the embodiment of the present invention;
Fig. 2 is the assembling schematic diagram of the lining shown in Fig. 1 and magnet ring;
Fig. 3 is the schematic diagram of the lining shown in Fig. 2;
Fig. 4 is the schematic diagram of the motor according to the embodiment of the present invention.
Reference numeral:
100: rotor assembly;
1: armature spindle; 11: first end; 111: the first end faces; 12: the second ends;
2: lining; 21: axle coordinates section; 22: magnet ring coordinates section; 23: groove;
221: net form groove; 3: magnet ring; 4: rotor;
200: motor.
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 ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, 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 directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For a person skilled in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1-Fig. 4, the rotor assembly 100 according to the embodiment of the present invention is described.Wherein, rotor assembly 100 may be used in motor 200 such as DC brushless motor.Certainly, those skilled in the art are appreciated that rotor assembly 100 can also be used in permagnetic synchronous motor.
As shown in Figure 1, the rotor assembly 100 of embodiment according to a first aspect of the present invention, comprises armature spindle 1, lining 2 and magnet ring 3.
Armature spindle 1 has first end 11 (right-hand member such as, in Fig. 1) and the second end 12 (left end such as, in Fig. 1).Specifically, for example, referring to Fig. 1, armature spindle 1 extends in the horizontal direction, and armature spindle 1 is provided with rotor 4, and the first end 11 of armature spindle 1 and the second end 12 lay respectively at the left and right sides of rotor 4.
Lining 2 has axle and coordinates section 21 and magnet ring to coordinate section 22, and axle coordinates section 21 to be sleeved on the above-mentioned first end 11 of armature spindle 1, and magnet ring coordinates section 22 to be positioned at the outside of the first end face 111 (right side such as, in Fig. 1) of armature spindle 1.Here, it should be noted that, " outside " refers to the side away from the second end 12 of axial, the first end face 111 along armature spindle 1.Such as, as shown in Figure 1, axle coordinates section 21 to be set on the outer surface of above-mentioned first end 11 of armature spindle 1, and magnet ring coordinates section 22 to be positioned at the right side of the first end face 111 of armature spindle 1.
Axle coordinates section 21 and armature spindle 1 that the mode of interference fit can be adopted to link into an integrated entity, and can guarantee that lining 2 and magnet ring 3 can not come off from armature spindle 1 like this, but be not limited thereto.Alternatively, lining 2 is metalwork, and such as, lining 2 is copper piece, copper lining 2 and magnet ring 3 can plastic packaging integral, be plastic packaging layer outside lining 2.
Magnet ring 3 is set in magnet ring and coordinates in section 22.As shown in Figure 1, magnet ring 3 is set in magnet ring and coordinates outside section 22, now magnet ring 3 and armature spindle 1 being axially staggeredly arranged at armature spindle 1.Thus, when axle coordinates section 21 and armature spindle 1 coordinating example as interference fit, section 22 (namely lining 2 is relative to the non-matching part of armature spindle 1) is coordinated because magnet ring 3 is arranged in magnet ring, thus the outside expansive force in interference fit position can not conduct to magnet ring coordinates section 22, namely magnet ring 3 can not be subject to the power of outwards expansion, thus magnet ring 3 does not exist cracking risk.Alternatively, magnet ring 3 is nonmetal parts.
By arranging magnet ring 3, the control circuit of motor 200 can determine the position of the rotor magnetic pole of rotor 4 by the position of detection magnet ring magnetic pole, thus applies electric current correctly to the stator winding of motor 200.
According to the rotor assembly 100 of the embodiment of the present invention, coordinating in section 22 by magnet ring 3 being arranged on magnet ring, can prevent magnet ring 3 from occurring the phenomenon of cracking, thus improve the reliability of rotor assembly 100, extending the useful life of rotor assembly 100.
According to an embodiment of the present invention, axle coordinates the external diameter of section 21 to be less than or greater than the external diameter of magnet ring cooperation section 22.Such as, as shown in Figure 2, lining 2 is roughly circular tube structure, magnet ring coordinates the external diameter of section 22 to be greater than the external diameter of axle cooperation section 21, the axle section of cooperation 21 is being assembled after on (such as by the mode of interference fit) to armature spindle 1, axle coordinate section 21 outwards dilatancy time deformation force can not be transmitted to and be arranged on magnet ring and coordinate on the magnet ring 3 of section 22, thus prevent magnet ring 3 to occur the phenomenon of cracking further.Certainly, magnet ring coordinates the external diameter of section 22 can also be less than the external diameter (scheming not shown) of axle cooperation section 21.
Axle coordinates the internal diameter of section 21 to be greater than or less than the internal diameter of magnet ring cooperation section 22.With reference to Fig. 2, lining 2 is roughly circular tube structure, magnet ring coordinates the internal diameter of section 22 to be less than the internal diameter of axle cooperation section 21, the axle section of cooperation 21 is being assembled after on (such as by the mode of interference fit) to armature spindle 1, axle coordinates the distortion of section 21 and armature spindle 1, magnet ring can not be conducted to coordinate in section 22, namely can not conduct to magnet ring 3, thus prevent magnet ring 3 to occur the phenomenon of cracking further.Certainly, magnet ring coordinates the internal diameter of section 22 can also be greater than the internal diameter (scheming not shown) of axle cooperation section 21.
With reference to Fig. 1 composition graphs 2, axle coordinates the groove 23 internal perisporium of section 21 being formed with contiguous magnet ring and coordinating section 22, and groove 23 is preferably annular groove.Thus, magnet ring 3 can be prevented further to occur the phenomenon of cracking.Further, groove 23 directly adjoins with the magnet ring section of cooperation 22, and as shown in Figure 2, now the right side wall of groove 23 is concordant with the left side wall of the magnet ring section of cooperation 22.
As shown in Figure 3, magnet ring coordinate section 22 periphery wall on be formed with net form groove 221.Wherein, net form groove 221 can be annular knurl.Thus, add the friction between magnet ring cooperation section 22 and magnet ring 3, thus improve the bonding strength between lining 2 and magnet ring 3.
Alternatively, with reference to Fig. 3, the length of section 22 is coordinated to be less than the length of axle cooperation section 21 at the axially magnet ring of magnet ring.Thus, processing is simple and cost is low.
As shown in Figure 4, the motor 200 such as DC brushless motor of embodiment, comprises the rotor assembly 100 according to the above-mentioned first aspect embodiment of the present invention according to a second aspect of the present invention.
Be all known according to other configuration examples of the motor 200 of the embodiment of the present invention to those skilled in the art as stator etc. and operation, be not described in detail here.
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 (10)
1. a rotor assembly, is characterized in that, comprising:
Armature spindle, described armature spindle has first end and the second end;
Lining, described lining has axle and coordinates section and magnet ring to coordinate section, and described axle coordinates section to be sleeved on the first end of described armature spindle and described magnet ring coordinates section to be positioned at the outside of the first end face of described armature spindle; And
Magnet ring, described magnet ring is sleeved on described magnet ring and coordinates in section.
2. rotor assembly according to claim 1, is characterized in that, described axle coordinates the external diameter of section to be less than or greater than the external diameter of described magnet ring cooperation section.
3. rotor assembly according to claim 1, is characterized in that, described axle coordinates the internal diameter of section to be greater than or less than the internal diameter of described magnet ring cooperation section.
4. rotor assembly according to claim 1, is characterized in that, described axle coordinates the groove internal perisporium of section being formed with contiguous described magnet ring cooperation section.
5. rotor assembly according to claim 4, is characterized in that, described groove directly adjoins with the described magnet ring section of cooperation.
6. rotor assembly according to claim 1, is characterized in that, the periphery wall of described magnet ring cooperation section is formed with net form groove.
7. rotor assembly according to claim 1, is characterized in that, described lining is metalwork and described magnet ring is nonmetal parts.
8. rotor assembly according to claim 7, is characterized in that, described lining is copper piece.
9. the rotor assembly according to any one of claim 1-8, is characterized in that, coordinates the length of section to be less than the length of described axle cooperation section at the axially described magnet ring of described magnet ring.
10. a motor, is characterized in that, comprises the rotor assembly according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184175.7A CN104753218B (en) | 2015-04-16 | 2015-04-16 | Rotor assembly and with its motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184175.7A CN104753218B (en) | 2015-04-16 | 2015-04-16 | Rotor assembly and with its motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753218A true CN104753218A (en) | 2015-07-01 |
| CN104753218B CN104753218B (en) | 2018-05-25 |
Family
ID=53592475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510184175.7A Expired - Fee Related CN104753218B (en) | 2015-04-16 | 2015-04-16 | Rotor assembly and with its motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104753218B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979969A (en) * | 2015-07-07 | 2015-10-14 | 广东威灵电机制造有限公司 | Motor magnetic ring, motor and washing machine |
| CN106936238A (en) * | 2015-12-30 | 2017-07-07 | 博世汽车部件(长沙)有限公司 | Magnet ring and the motor with it |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013960A (en) * | 1997-01-09 | 2000-01-11 | Mitsuba Corporation | Motor unit with rotation detecting mechanism |
| CN202488236U (en) * | 2012-03-05 | 2012-10-10 | 镇江苏润电子科技有限公司 | Cracking-resisting speed measurement sensor rotor for full-automatic washing machine |
| CN103248174A (en) * | 2012-02-03 | 2013-08-14 | 罗伯特·博世有限公司 | Electric machine |
| JP2013258880A (en) * | 2012-06-14 | 2013-12-26 | Nikon Corp | Detector and motor device |
| CN203761206U (en) * | 2014-02-21 | 2014-08-06 | 广东科嘉霖电器制造有限公司 | Dough-kneading machine with Hall control motor rotating speed structure |
| CN104022589A (en) * | 2014-05-22 | 2014-09-03 | 佛山市威灵洗涤电机制造有限公司 | Motor speed detection and feedback device and motor with motor speed detection and feedback device |
| JP2014193075A (en) * | 2013-03-28 | 2014-10-06 | Valeo Japan Co Ltd | Motor drive device and electric compressor using the same |
-
2015
- 2015-04-16 CN CN201510184175.7A patent/CN104753218B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6013960A (en) * | 1997-01-09 | 2000-01-11 | Mitsuba Corporation | Motor unit with rotation detecting mechanism |
| CN103248174A (en) * | 2012-02-03 | 2013-08-14 | 罗伯特·博世有限公司 | Electric machine |
| CN202488236U (en) * | 2012-03-05 | 2012-10-10 | 镇江苏润电子科技有限公司 | Cracking-resisting speed measurement sensor rotor for full-automatic washing machine |
| JP2013258880A (en) * | 2012-06-14 | 2013-12-26 | Nikon Corp | Detector and motor device |
| JP2014193075A (en) * | 2013-03-28 | 2014-10-06 | Valeo Japan Co Ltd | Motor drive device and electric compressor using the same |
| CN203761206U (en) * | 2014-02-21 | 2014-08-06 | 广东科嘉霖电器制造有限公司 | Dough-kneading machine with Hall control motor rotating speed structure |
| CN104022589A (en) * | 2014-05-22 | 2014-09-03 | 佛山市威灵洗涤电机制造有限公司 | Motor speed detection and feedback device and motor with motor speed detection and feedback device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979969A (en) * | 2015-07-07 | 2015-10-14 | 广东威灵电机制造有限公司 | Motor magnetic ring, motor and washing machine |
| CN104979969B (en) * | 2015-07-07 | 2018-09-11 | 广东威灵电机制造有限公司 | Motor magnet ring, motor and washing machine |
| CN106936238A (en) * | 2015-12-30 | 2017-07-07 | 博世汽车部件(长沙)有限公司 | Magnet ring and the motor with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104753218B (en) | 2018-05-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20210416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |