CN201839114U - Brushless motor rotor and brushless motor using same - Google Patents
Brushless motor rotor and brushless motor using same Download PDFInfo
- Publication number
- CN201839114U CN201839114U CN2010202987049U CN201020298704U CN201839114U CN 201839114 U CN201839114 U CN 201839114U CN 2010202987049 U CN2010202987049 U CN 2010202987049U CN 201020298704 U CN201020298704 U CN 201020298704U CN 201839114 U CN201839114 U CN 201839114U
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- CN
- China
- Prior art keywords
- brushless motor
- groove
- rotor
- cylinder blanket
- utility
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- 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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- 229910000976 Electrical steel Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 210000003660 reticulum Anatomy 0.000 description 9
- 230000005855 radiation Effects 0.000 description 5
- 239000003292 glue Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920006335 epoxy glue Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a brushless motor, in particular to a brushless motor rotor which comprises a front cover, a cylindrical shell and a magnet adhered on the inner surface of the cylindrical shell, wherein the outer surface of the cylindrical shell is provided with a groove. In the utility model, the outer surface of the cylindrical shell of the rotor is sufficiently utilized, the motor structure does not need to be changed, air flow speed is promoted and a heat dissipation contact area of the air and the rotor is enlarged during rotation, therefore, good heat dissipation effect can be achieved.
Description
Technical field
The utility model relates to the brushless motor field, more particularly, relates to a kind of brushless motor rotor.
Background technology
Brushless motor is to use a kind of quite widely motor now in the telecontrolled model field, does not almost have the rotor of wearing and tearing, safeguards that with out shell higher efficient makes brushless motor be accepted more and more widely hardly throughout one's life.Present brushless motor is made up of rotor, stator and axle center, and its rotor mainly is made up of magnet and shell, and magnet is bonded at the inner surface of shell by glue, and the outer surface of shell is smooth.Motor can discharge a large amount of heat in the process of operation, in the prior art be to leave corresponding circumferentially hole by the protecgulum bonnet of motor to realize dispelling the heat, and heat radiation is usually not enough.
The utility model content
The technical problems to be solved in the utility model is that the above-mentioned heat radiation defect of insufficient at prior art provides a kind of brushless motor and outer surface of outer cover fluted rotor.
A kind of technical scheme that its technical problem that solves the utility model adopts is: construct a kind of brushless motor rotor, comprise protecgulum, cylinder blanket and be affixed on the magnet of column type inner surface of outer cover, described cylinder blanket outer surface has groove.
In a kind of brushless motor rotor of the utility model, described groove comprises the groove that is provided with along the cylinder blanket circumferencial direction.
In a kind of brushless motor rotor of the utility model, described groove comprises triangle, trapezoidal or rectangle along cylindrical axial cross-sectional shape.
In a kind of brushless motor rotor of the utility model, described groove comprises continuous spiral groove or separate annular ditch groove.
The another kind of technical scheme that its technical problem that solves the utility model adopts is: construct a kind of brushless motor, comprise rotor, stator and axle center, wherein said rotor comprises protecgulum, cylinder blanket and is affixed on the magnet of cylinder blanket inner surface, described stator comprises silicon steel sheet and bonnet, and described rotor cylinder blanket outer surface has groove.
In a kind of brushless motor of the utility model, described groove comprises the groove that is provided with along the cylinder blanket circumferencial direction.
In a kind of brushless motor of the utility model, described groove comprises triangle, trapezoidal and rectangle along cylindrical axial cross-sectional shape.
In a kind of brushless motor of the utility model, described groove is to comprise continuous spiral groove or separate annular ditch groove.
Implement the utility model, have following beneficial effect: the utility model has made full use of the outer surface of rotor case, need not to change motor configuration, increased the flowing velocity of air and the heat radiation contact area of air and rotor when rotated, can reach better heat radiating effect.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of brushless motor of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of a kind of embodiment cylinder blanket of the utility model;
Fig. 3 is the structural representation of second kind of embodiment cylinder blanket of the utility model;
Figure number explanation: 1 cylinder blanket; 2 brushless motor protecgulums; 3 brushless motor bonnets; 4 brushless motor axle center.
Embodiment
First kind of execution mode as shown in Figure 1, 2, rotor case outer surface cross section is trapezoidal brushless motor.Brushless motor comprises rotor, stator and axle center.Its rotor comprises brushless motor protecgulum 2, cylinder blanket 1 and is affixed on the magnet of cylinder blanket inner surface; Stator comprises silicon steel sheet and brushless motor bonnet 3.
The magnet of rotor portion is to be bonded on the inner surface of cylinder blanket 1 by 638 glue and epoxy glue, and 1 of brushless motor protecgulum 2 and cylinder blanket are by being threaded and 638 glue cement.Wherein, the circumferential directions of brushless motor protecgulum 2 is useful on the fabrication hole of ventilation and heat; Outer surface cloth at cylinder blanket 1 is equipped with along the separate annular ditch groove of cylinder blanket 1 circumferencial direction.Groove is trapezoidal in the cross section of the axial direction of cylinder blanket 1.
Stationary part comprises silicon steel sheet and brushless motor bonnet 3, and silicon steel sheet and brushless motor bonnet 3 are bonding by epoxy glue.Brushless motor bonnet 3 along the circumferential direction is furnished with the fabrication hole that is used to dispel the heat, and also has a dead eye at core simultaneously.
The dead eye on the brushless motor bonnet 3 is passed in brushless motor axle center 4, realizes being connected of rotor and stator by being threaded with brushless motor protecgulum 2.
In the present embodiment, cross section is trapezoidal separate annular ditch groove along the circumferential directions of cylinder blanket 1 in the surface of cylinder blanket 1, when brushless motor axle center 4 drives the rotor high-speed rotation, air can be along the trapezoidal groove flow at high speed on cylinder blanket 1 surface, the contact area of air and cylinder blanket 1 increases greatly, thereby produce scattering and disappearing of heat when having accelerated motor operation, the heat radiation fabrication hole that cooperates brushless motor protecgulum 2 and brushless motor bonnet 3 simultaneously makes radiating effect reach best.
In second kind of execution mode, in order to accelerate the flowing velocity of air around cylinder blanket 1, the heat radiation groove is along cylindrical circumference direction shape in the shape of a spiral at the arrangement of cylinder blanket 1 outer surface, it is continuous spiral groove, shape of cross section along cylindrical axial direction has been designed to triangle simultaneously, as shown in Figure 3.Thereby the flowing velocity of so not only having accelerated air has also increased the contact area of air and cylinder blanket 1 and has accelerated scattering and disappearing of heat.
In the above dual mode, groove also can be a rectangle along the shape of cross section of cylindrical axial direction, and the arrangement mode of groove (continuous helical form or separate ring-type) can independent assortment with shape of cross section.
It should be noted that the utility model is described by some embodiment, those skilled in the art know, under the situation that does not break away from spirit and scope of the present utility model, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present utility model, can make amendment to these features and embodiment can not break away from spirit and scope of the present utility model to adapt to concrete situation and material.Therefore, the present invention is not subjected to the restriction of specific embodiment disclosed herein, and all interior embodiment of claim scope that fall into the application belong to protection range of the present utility model.
Claims (8)
1. brushless motor rotor comprises protecgulum, cylinder blanket and is affixed on the magnet of column type inner surface of outer cover, it is characterized in that described cylinder blanket outer surface has groove.
2. brushless motor rotor according to claim 1 is characterized in that, described groove comprises the groove that is provided with along the cylinder blanket circumferencial direction.
3. brushless motor rotor according to claim 1 is characterized in that, described groove comprises triangle, trapezoidal or rectangle along cylindrical axial cross-sectional shape.
4. brushless motor rotor according to claim 1 is characterized in that, described groove comprises continuous spiral groove or separate annular ditch groove.
5. brushless motor, comprise rotor, stator and axle center, wherein said rotor comprises protecgulum, cylinder blanket and is affixed on the magnet of cylinder blanket inner surface that described stator comprises silicon steel sheet and bonnet, it is characterized in that described rotor cylinder blanket outer surface has groove.
6. brushless motor according to claim 5 is characterized in that, described groove comprises the groove that is provided with along the cylinder blanket circumferencial direction.
7. brushless motor according to claim 5 is characterized in that, described groove comprises triangle, trapezoidal and rectangle along cylindrical axial cross-sectional shape.
8. brushless motor according to claim 5 is characterized in that, described groove is to comprise continuous spiral groove or separate annular ditch groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202987049U CN201839114U (en) | 2010-08-20 | 2010-08-20 | Brushless motor rotor and brushless motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202987049U CN201839114U (en) | 2010-08-20 | 2010-08-20 | Brushless motor rotor and brushless motor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839114U true CN201839114U (en) | 2011-05-18 |
Family
ID=44009213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202987049U Expired - Fee Related CN201839114U (en) | 2010-08-20 | 2010-08-20 | Brushless motor rotor and brushless motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611222A (en) * | 2012-02-22 | 2012-07-25 | 北京交通大学 | Motor ventilating system with gear type wind mixing structure |
-
2010
- 2010-08-20 CN CN2010202987049U patent/CN201839114U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611222A (en) * | 2012-02-22 | 2012-07-25 | 北京交通大学 | Motor ventilating system with gear type wind mixing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20180820 |