CN201118294Y - A motor rotor - Google Patents
A motor rotor Download PDFInfo
- Publication number
- CN201118294Y CN201118294Y CNU2007203051161U CN200720305116U CN201118294Y CN 201118294 Y CN201118294 Y CN 201118294Y CN U2007203051161 U CNU2007203051161 U CN U2007203051161U CN 200720305116 U CN200720305116 U CN 200720305116U CN 201118294 Y CN201118294 Y CN 201118294Y
- Authority
- CN
- China
- Prior art keywords
- conjunction
- axostylus axostyle
- motor rotor
- wheel hub
- magnetic wheel
- 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
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a motor rotor. The rotor consists of a magnetic hub, a combining part, and a shaft lever. The magnetic hub is a plastic magnet. The combining part is combined with the magnetic hub and the shaft lever through injection molding. The shaft lever is arranged in the combing part. Through injection molding, the shaft lever, the magnetic hub and the combining part are integrated, so vibration caused when the motor rotates will not cause the shaking of the shaft lever and the shaft lever and the magnetic hub will not be loosened. Thus, the service life of the motor rotor is prolonged. Moreover, with the method of integration, the assembling procedures are reduced.
Description
Technical field
The utility model relates to a kind of motor rotor, and it comprises an axostylus axostyle, a magnetic wheel hub and a conjunction, and by ejection formation with axostylus axostyle, magnetic wheel hub, conjunction, be combined into one.
Background technology
Known inner rotor core, as shown in Figure 1, internal rotor comprises an axostylus axostyle 13, a plastic magnet 14, a silicon steel sheet 11.
As shown in Figure 2, known internal rotor combination, be an axostylus axostyle 13 to be inserted axis hole (not shown) default in the silicon steel sheet 11 be assembled into one as combination, combination after then again assembling being finished is inserted in the jetting mold, mode by ejection formation is with the composite material ejection formation, form the plastic magnet 14 of a coating combination (not shown), this composite material is by plastic material and Magnaglo is compound makes, this plastic magnet 14 is a circulus, is combined into one by ejection formation and silicon steel sheet 11 and axostylus axostyle 13.
Yet, axostylus axostyle 13 is all the metallicity material with silicon steel sheet 11, what the size of two members need cooperate during cooperation is quite accurate, axostylus axostyle 13 and silicon steel sheet 11 could be combined closely, and motor can produce a thermal source under running up, under the characteristic that the metallicity material is expanded with heat and contract with cold, easily cause the axostylus axostyle 13 and the junction of silicon steel sheet 11 to get loose gradually, rocking of axostylus axostyle 13 can cause silicon steel sheet 11 and axostylus axostyle 13 to rub mutually when high speed rotating, and make silicon steel sheet 11 and axostylus axostyle 13 gradually lose its out of roundness, not only make axostylus axostyle 13 and silicon steel sheet 11 produce loosening phenomenon, and be the main source that produces noise, and then reduce motor useful life, moreover, not only increase assembling workshop section but also increase assembly cost because conjunction must be assembled earlier.
Summary of the invention
At the problems referred to above, main purpose of the present utility model is to provide a kind of motor rotor, and the structure that the axostylus axostyle of its motor rotor, magnetic wheel hub and conjunction are formed in one is to solve between axostylus axostyle, magnetic wheel hub and the conjunction in conjunction with too tight or too loose problem.
For achieving the above object, a kind of motor rotor provided by the utility model is constructed, and it is characterized in that comprising: a magnetic wheel hub is a ring-shaped plastics magnet; One conjunction, by ejection formation in conjunction with described magnetic wheel hub and axostylus axostyle; One axostylus axostyle is arranged in the described conjunction.
In the above-mentioned the technical solution of the utility model, described conjunction and described magnetic wheel hub and described axostylus axostyle are integrally formed.
In the above-mentioned the technical solution of the utility model, the inner peripheral of described magnetic wheel hub both ends of the surface is a circular rabbet, is provided with a plurality of protrusion pieces on described circular rabbet.
In the above-mentioned the technical solution of the utility model, described conjunction is a plastic material, is processed into by injection molding method.
In the above-mentioned the technical solution of the utility model, described conjunction two ends are radial flange, coat described axostylus axostyle, and described flange is the some of described conjunction, with described conjunction ejection formation together.
In the above-mentioned the technical solution of the utility model, described magnetic wheel hub and described conjunction be ejection formation simultaneously, and described circular rabbet and described protrusion piece are by the plastic covered of described conjunction.
Adopt above technical scheme, axostylus axostyle of the present utility model, magnetic wheel hub and conjunction are one-body molded, and together form protuberance during the conjunction ejection formation, and with protuberance coating axostylus axostyle, thus, no matter the phenomenon that can not produce tension or get loose between axostylus axostyle and conjunction and magnetic wheel hub is in revolution, static or when starting, all can keep axostylus axostyle spin balancing and rotational stability, and then prolong the life-span of motor rotor.And conjunction adopts plastic material, and its cost is lower than silicon steel sheet or aluminium alloy cost.Therefore, the simplified structure that the utility model can be relative, quicken manufacture process, prolong the life-span of motor rotor and reduce cost.
Description of drawings
Fig. 1 is the profile of known inner rotor core;
Fig. 2 is the stereogram of known inner rotor core;
Fig. 3 is the stereogram of the utility model motor rotor embodiment;
Fig. 4 is the profile of the utility model motor rotor embodiment;
Fig. 5 is the magnetic wheel hub vertical view of the utility model motor rotor;
Fig. 6 is the magnetic wheel hub stereogram of the utility model motor rotor;
Fig. 7 is the application profile of the utility model motor rotor embodiment.
Embodiment
For the effect that describes structure of the present utility model, feature in detail and reached, existing following preferred embodiment of act and conjunction with figs. are described as follows.
As shown in Figure 3, motor rotor provided by the utility model comprises an axostylus axostyle 1, a magnetic wheel hub 2, reaches a conjunction 3.As shown in Figure 3, Figure 4, axostylus axostyle 1 and magnetic wheel hub 2 are together inserted ejection formation in the jetting mold, form the conjunction 3 that forms one with axostylus axostyle 1 earlier, synchronously that magnetic wheel hub 2 and conjunction 3 is one-body molded.This kind combination, 2 phenomenons that can not produce tension or get loose of axostylus axostyle 1 and conjunction 3 and magnetic wheel hub, and through experiment test, the anti-pull out force average out to 240.3kgf that takes off of the present utility model, confirm that this combined structure is more sturdy and durable, can prolong the life-span of motor rotor.And conjunction 3 can be plastic material, and its cost is lower than silicon steel sheet or aluminium alloy cost.
As shown in Figure 4, forming conjunction 3, is that in advance axostylus axostyle 1 and magnetic wheel hub 2 together to be put into ejection shaping mould fixing, the plastics of hot melt is injected in the shaping dies (not shown) again, after plastic cool is shaped, form the conjunction 3 that coats axostylus axostyle 1 and engage magnetic wheel hub 2.
The two ends of conjunction 3 are flange 31 radially, radial flange 31 is the some of conjunction 3, together forms when ejection formation conjunction 3, and coats axostylus axostyle 1 with protuberance, no matter in revolution, static or when starting, all can keep axostylus axostyle 1 spin balancing and rotational stability thus.
As Fig. 5, shown in Figure 6, magnetic wheel hub 2 is a ring magnet, and the accommodation space in the ring is used for ccontaining conjunction 3 and axostylus axostyle 1, and magnetic wheel hub 2 is by plastic substrate and Magnaglo is compound makes, and promptly magnetic wheel hub 2 is to be made by plastic magnet.
The inner peripheral of magnetic wheel hub 2 both ends of the surface is a circular rabbet 21, uniform distribution has four to protrude piece 22 on the circular rabbet 21, by conjunction 3 injection moldings, plastics can and protrude piece 22 with circular rabbet 21 and cover, its purposes is that the protrusion piece 22 of magnetic wheel hub 2 when internal rotor rotates can block conjunction 3, produces a kind of holdback force thus and makes magnetic wheel hub 2 and conjunction 3 more difficult getting loose.
In sum, not only easily cause axostylus axostyle and silicon steel sheet loosening than the internal rotor of commonly using shown in Figure 1, and be the source of noise, more can increase shortcomings such as assembly cost, integrated motor rotor provided by the utility model can reduce the quantity of rotor component really, and relative simplified structure, acceleration manufacture process also reduce cost.
Though the utility model is described in detail by above-mentioned preferred embodiment; but can not be used for limiting the utility model; anyly have the knack of this skill person; under the prerequisite that does not break away from spirit of the present utility model and scope; can carry out various equivalent transformations and modification to the foregoing description, these conversion all should be included in the scope of patent protection of the present utility model with modification.
Claims (6)
1, a kind of motor rotor is characterized in that comprising:
One magnetic wheel hub is a ring-shaped plastics magnet;
One conjunction, by ejection formation in conjunction with described magnetic wheel hub and axostylus axostyle;
One axostylus axostyle is arranged in the described conjunction.
2, a kind of motor rotor as claimed in claim 1 is characterized in that: described conjunction and described magnetic wheel hub and described axostylus axostyle are integrally formed.
3, a kind of motor rotor as claimed in claim 1 is characterized in that: the inner peripheral of described magnetic wheel hub both ends of the surface is a circular rabbet, is provided with a plurality of protrusion pieces on described circular rabbet.
4, a kind of motor rotor as claimed in claim 1, it is characterized in that: described conjunction is a plastic material, is processed into by injection molding method.
5, a kind of motor rotor as claimed in claim 1 is characterized in that: described conjunction two ends are radial flange, coat described axostylus axostyle, and described flange is the some of described conjunction, with described conjunction ejection formation together.
6, a kind of motor rotor as claimed in claim 3 is characterized in that: described magnetic wheel hub and described conjunction be ejection formation simultaneously, and described circular rabbet and described protrusion piece are by the plastic covered of described conjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203051161U CN201118294Y (en) | 2007-11-20 | 2007-11-20 | A motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203051161U CN201118294Y (en) | 2007-11-20 | 2007-11-20 | A motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118294Y true CN201118294Y (en) | 2008-09-17 |
Family
ID=39992885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203051161U Expired - Fee Related CN201118294Y (en) | 2007-11-20 | 2007-11-20 | A motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118294Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8436497B2 (en) | 2010-09-13 | 2013-05-07 | Sunonwealth Electric Machine Industry Co., Ltd. | Rotor for motor |
| USRE49924E1 (en) * | 2014-06-13 | 2024-04-16 | Lg Innotek Co., Ltd. | Rotor assembly, motor and dual clutch transmission |
-
2007
- 2007-11-20 CN CNU2007203051161U patent/CN201118294Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8436497B2 (en) | 2010-09-13 | 2013-05-07 | Sunonwealth Electric Machine Industry Co., Ltd. | Rotor for motor |
| USRE49924E1 (en) * | 2014-06-13 | 2024-04-16 | Lg Innotek Co., Ltd. | Rotor assembly, motor and dual clutch transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20101120 |