CN1707909A - Rotor assembly for external rotor type motor - Google Patents
Rotor assembly for external rotor type motor Download PDFInfo
- Publication number
- CN1707909A CN1707909A CN 200410019521 CN200410019521A CN1707909A CN 1707909 A CN1707909 A CN 1707909A CN 200410019521 CN200410019521 CN 200410019521 CN 200410019521 A CN200410019521 A CN 200410019521A CN 1707909 A CN1707909 A CN 1707909A
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- rotor
- type motor
- axle bush
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- assembly
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The rotor assembly for outer rotor type motor is installed outside the stator for rotation and has assembled rotor rack, rotor iron core and rotor lining. The rotor assembly has rotor iron core installed in the upper end part of the rotor rack, rotor lining fixed in the bottom center of the rotor rack and shaft lining of high strength aluminum material in the center of plastic rotor center. Therefore, the present invention can avoid the damage of motor shaft lining caused by long time friction to the rotating shaft and has prolonged part life and raised endurance of the motor.
Description
Technical field
The present invention relates to a kind of rotor assembly (ROTOR ASSEMBLY FOR OUTERROTOR TYPE ELECTRIC MOTOR) of outer rotor type motor, or rather, relate to a kind of rotor assembly with outer rotor type motor of following characteristics, that is: the axle bush connecting portion that is used for power is conducted to the rotor bushing of rotating shaft in the rotor assembly is to make by the method for insert molding (insert molding) with high-intensity material, thereby it can bear the burden of overload, thereby prolongs the useful life of product.
Background technology
Motor generally produces power by rotatablely moving, but recently a kind of can also having obtained using widely by the so-called reciprocating motion type motor (liner motor) that rectilinear motion produces power.Motor can be divided into DC motor and alternating current motor according to the kind of power supply.
In general, motor is divided into following several, and a kind of is common rotary electromotor, and this motor possesses the stator (stator) that is fixedly mounting and can carry out the rotor (rotor) that relative motion promptly rotatablely moves with respect to stator.A kind of is the reciprocating motion type motor, and this motor possesses slip (slider) that can carry out linear reciprocal movement with respect to stator.
Rotary-type motor can be divided into inner-rotor type (inner rotor) and outer-rotor type (outerrotor) again, the rotor of wherein above-mentioned inner-rotor type motor is installed in the inside of stator and can rotates, and the rotor of above-mentioned outer rotor type motor then is installed in the outside of stator and can rotates.
Fig. 1 is the profile of existing outer rotor type motor.As shown in the figure, existing outer rotor type motor possesses with lower member, and promptly stator 1, is fixedly mounted on central part; Rotor assembly 2 is installed in the outside of stator 1 and keeps certain intervals with stator 1, and it is rotatable; Rotating shaft 3 is connected the centre of above-mentioned group rotor assembly 2, can conduct power.
Said stator 1 is by constituting with the lower part, and promptly stator core 12, and cylindrical shape and periphery have formed several slits (slot), and it is formed by stacking with the steel plate insulation; Stator coil 13 is wrapped in each slit 11 of stator core 12, can produce magnetic force.
Above-mentioned rotor assembly 2 is by constituting with lower member, and promptly rotor core 21, be installed in stator core 1 radial direction the outside and with stator core 1 at a distance of certain intervals, can under the effect of electromagnetic force, rotate with respect to stator coil 13; Rotor field spider 22 is installed in the outside of rotor core 21, is connecting rotor core 21 on its inner surface; Rotor bushing (rotor bushing) 23, (plastic) makes with plastics, is installed in the center of the bottom of above-mentioned rotor field spider 22, is connected with rotating shaft 3 in the mode that meshes (serration).
Above-mentioned rotor bushing 23 made of plastic is the bottom centre positions that are fixed on rotor field spider 22 by screw (screw) 24.
If have on the stator coil 13 of existing outer rotor type motor of said structure and connected power supply, between stator coil 13 and rotor core 21, will produce induced field so, thereby make rotor core 21 rotations, thereupon, the whole rotor assembly 2 that comprises the rotor field spider 22 that rotor core 21 is housed will rotate, so, the rotating shaft 3 that is engaged on the rotor bushing 23 of the rotor assembly 2 that is rotating also can rotate, and just can conduct the revolving force of motor by rotating shaft 3 thus.
But, in aforesaid existing outer rotor type motor, the rotor bushing 23 that is used for the revolving force of rotor assembly 2 is conducted to rotating shaft is made of plastic, thereby motor used after longer a period of time, thereby its sawtooth connecting portion wearing and tearing easily produces noise, and its sawtooth position of serious words also has may be damaged, can't realize the conduction of power, thereby the fault that causes motor, this is the existing in prior technology problem just.
Summary of the invention
The present invention designs in order to address the above problem, purpose is to provide a kind of rotor assembly with outer rotor type motor of following characteristics, the sawtooth connecting portion that is its rotor bushing is to make by the method for insert molding (insert molding) with high-strength material, thereby can improve the durability of parts.
To achieve these goals, the invention provides a kind of rotor assembly of outer rotor type motor, it is characterized in that: the rotor assembly of outer rotor type motor is installed in the outside of stator and can rotates, and assembling rotor field spider on the above-mentioned rotor assembly, rotor core, rotor bushing.The top of the rotor field spider of above-mentioned rotor assembly is an opening, rotor core is equipped with in the inboard of the upper part of rotor field spider, the center fixation of the bottom of rotor field spider the rotor bushing that is used for to rotating shaft conduction power, in this rotor bushing, the lining fixed part is made of plastic, the axle bush that is connected the sawtooth position of rotating shaft is made with high-strength metal material, and axle bush is that method by insert molding (insert molding) is assembled on the lining fixed part.
In the rotor assembly of outer rotor type motor of the present invention, rotor core is equipped with in the inboard of the upper part of rotor field spider, the center fixation of the bottom of rotor field spider rotor bushing, in rotor bushing, assembled the axle bush made from the high strength aluminium by the method for insert molding (insert molding) on the centre of lining fixed part made of plastic, that is to say that the axle bush on the serrations that is connected rotating shaft is made with high-intensity material.Therefore when the present invention can prevent that motor from driving for a long time axle bush because of and rotating shaft between friction damaged, thereby prolong useful life of parts, and then the durability of raising motor.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of existing outer rotor type motor;
Fig. 2 is the longitudinal sectional drawing that the outer rotor type motor of rotor assembly of the present invention is housed;
Fig. 3 is the end view of rotor assembly of the present invention;
Fig. 4 is the assembling side elevation of rotor bushing of the present invention;
Fig. 5 is the longitudinal sectional drawing of Fig. 4;
Fig. 6 is the end view of axle bush of the present invention.
The critical piece description of reference numerals
101: stator 102: rotor assembly
103: rotating shaft 121: rotor field spider (rotor frame)
122: rotor core 123: rotor bushing (rotor bushing)
131: lining fixed part 132: axle bush (shaft bushing)
141: axle bush body 142: sawtooth (serration) portion
143: breakthrough part 144: protuberance
145: dentalation formation portion
Embodiment
Example with reference to the accompanying drawings gives more detailed explanation to the rotor assembly of outer rotor type motor of the present invention with said structure.
Fig. 2 is the longitudinal sectional drawing that the outer rotor type motor of rotor assembly of the present invention is housed, Fig. 3 is the end view of rotor assembly of the present invention, Fig. 4 is the assembling side elevation of rotor bushing of the present invention, and Fig. 5 is the longitudinal sectional drawing of Fig. 4, and Fig. 6 is the end view of axle bush of the present invention.
As shown in the figure, in the outer rotor type motor that has adopted rotor assembly of the present invention, stator 101 is fixedly mounted on central part, rotatable rotor assembly 102 is equipped with in the outside of stator 101, the center of the bottom of rotor assembly 102 is connecting rotating shaft 103, and this rotating shaft 103 can conduct the revolving force of rotor assembly 102.
Said stator 101 is by constituting with the lower part, and promptly stator core 112, and cylindrical shape and periphery have formed several slits (slot), and it is formed by stacking with the steel plate insulation; Stator coil 113 is wrapped in each slit 111 of stator core 112, can produce magnetic force.
Above-mentioned rotor assembly 102 is installed in the outside of said stator 101 and stator 101 can be covered, and can rotate.The top of rotor field spider 121 is openings, and the rotor core 122 of annular is housed on its inner top side position.Rotor bushing 123 is being fixed in the centre of the bottom of above-mentioned rotor field spider 121, can conduct power to rotating shaft 123 by this rotor bushing.
Above-mentioned rotor bushing 123 is by constituting with the lower part, and promptly the lining fixed part 131, are disc-shape, and is made of plastic, is fixed on the centre of the inside of above-mentioned rotor field spider 121 by screw 124; Axle bush 132 is made with high-intensity aluminium, is assembled in the centre of above-mentioned lining fixed part 131 by the method for insert molding (insert molding).
Formed the serrations 142 of the lower end that can be engaged on rotating shaft 103 on the inner surface of the axle bush body 141 of above-mentioned axle bush 132.In order to increase the bonding strength of insert molding, the outer ring of axle bush 132 has along the circumferential direction formed several protuberances that highlight 144, and has also formed the breakthrough part 143 of up/down perforation on these protuberances 144.In order to increase the bonding strength on the direction of rotation, the top dentalation formation portion 145 that also formed of above-mentioned protuberance 144 has formed several outstanding dentalations outwardly in this dentalation formation portion 145.
In the rotor assembly 102 of aforesaid outer rotor type motor of the present invention, rotor core 122 is equipped with in the inboard of the upper part of rotor field spider 121, the center fixation of the bottom of rotor field spider 121 rotor bushing 123, and this rotor bushing 123 is to be fixed on the rotor field spider 121 with screw 124.In the rotor bushing of fixing like this 123, assembled the axle bush made from the high strength aluminium 132 by the method for insert molding (insert molding) on the centre of lining fixed part 131 made of plastic, even therefore motor drives for a long time, the connecting portion of rotating shaft 103 can not wear and tear easily yet.
In addition, owing to also having formed breakthrough part 143 and protuberance 144 and dentalation formation portion 145 on the axle bush of assembling by the method for insert molding 132, and these structures can improve the bonding strength of insert molding, thereby axle bush 132 is assembled on the lining fixed part 131 very securely, even therefore under the power situation of conduction high pulling torque (torque), axle bush 132 also can not come off easily or be damaged.
Claims (4)
1, a kind of rotor assembly of outer rotor type motor is characterized in that: the rotor assembly of outer rotor type motor is installed in the outside of stator and can rotates, and assembling rotor field spider on the above-mentioned rotor assembly, rotor core, rotor bushing; The top of the rotor field spider of above-mentioned rotor assembly is an opening, rotor core is equipped with in the inboard of the upper part of rotor field spider, the center fixation of the bottom of rotor field spider the rotor bushing that is used for to rotating shaft conduction power, in this rotor bushing, the lining fixed part is made of plastic, the axle bush that is connected the sawtooth position of rotating shaft is made with high-strength metal material, and axle bush is that method by insert molding is assembled on the lining fixed part.
2, the rotor set of outer rotor type motor according to claim 1 is characterized in that:
Above-mentioned axle bush is made with the high strength aluminium.
3, the rotor set of outer rotor type motor according to claim 1 is characterized in that:
Formed the serrations that can be engaged on the lower end of rotating shaft on the inner surface of the axle bush body of above-mentioned axle bush, the outer ring of axle bush has along the circumferential direction formed the bonding strength of several protuberances that highlight with the increase insert molding, and has also formed the breakthrough part of up/down perforation on these protuberances.
4, the rotor set of outer rotor type motor according to claim 1 is characterized in that:
The top dentalation formation portion that formed of above-mentioned protuberance increasing the bonding strength on the direction of rotation, has formed several outstanding dentalations outwardly in the above-mentioned dentalation formation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019521 CN1707909A (en) | 2004-06-09 | 2004-06-09 | Rotor assembly for external rotor type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019521 CN1707909A (en) | 2004-06-09 | 2004-06-09 | Rotor assembly for external rotor type motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1707909A true CN1707909A (en) | 2005-12-14 |
Family
ID=35581610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410019521 Pending CN1707909A (en) | 2004-06-09 | 2004-06-09 | Rotor assembly for external rotor type motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1707909A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956841A (en) * | 2014-05-21 | 2014-07-30 | 常州里戈勃劳伊特新亚电机有限公司 | Rotor and assembling method thereof |
| CN106849485A (en) * | 2017-02-28 | 2017-06-13 | 唐凌霄 | Active drive unit and its solid-liquid separating equipment |
| CN106890731A (en) * | 2017-02-28 | 2017-06-27 | 唐凌霄 | Has the solid-liquid separating equipment of fluid passage |
| WO2017173864A1 (en) * | 2016-04-05 | 2017-10-12 | 唐凌霄 | Active drive unit having centrifugation unit, and solid-liquid separation device having same |
-
2004
- 2004-06-09 CN CN 200410019521 patent/CN1707909A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956841A (en) * | 2014-05-21 | 2014-07-30 | 常州里戈勃劳伊特新亚电机有限公司 | Rotor and assembling method thereof |
| CN103956841B (en) * | 2014-05-21 | 2017-09-29 | 雷勃电气(常州)有限公司 | A kind of rotor and its assembly method |
| WO2017173864A1 (en) * | 2016-04-05 | 2017-10-12 | 唐凌霄 | Active drive unit having centrifugation unit, and solid-liquid separation device having same |
| CN106849485A (en) * | 2017-02-28 | 2017-06-13 | 唐凌霄 | Active drive unit and its solid-liquid separating equipment |
| CN106890731A (en) * | 2017-02-28 | 2017-06-27 | 唐凌霄 | Has the solid-liquid separating equipment of fluid passage |
| CN106890731B (en) * | 2017-02-28 | 2021-11-05 | 唐凌霄 | Solid-liquid separation equipment with fluid channel |
| CN106849485B (en) * | 2017-02-28 | 2022-06-28 | 唐凌霄 | Active drive unit |
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| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |