CN208272725U - The inner rotor motor of axle center hollow out - Google Patents
The inner rotor motor of axle center hollow out Download PDFInfo
- Publication number
- CN208272725U CN208272725U CN201820900998.4U CN201820900998U CN208272725U CN 208272725 U CN208272725 U CN 208272725U CN 201820900998 U CN201820900998 U CN 201820900998U CN 208272725 U CN208272725 U CN 208272725U
- Authority
- CN
- China
- Prior art keywords
- hollow out
- bearing
- flabellum
- stator
- internal rotor
- 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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Abstract
The utility model is the inner rotor motor of axle center hollow out, and it includes a hollow out stators, a hollow out spiral lamination internal rotor, two flabellum bearings.Flabellum bearing is in combination with hollow out stator and hollow out spiral lamination internal rotor and both makes coaxial and can relatively rotate；Hollow out spiral lamination internal rotor is arranged in hollow out stator, using hollow and have the spiral lamination internal rotor tube body of both ends open as axis combination flabellum bearing.Hollow tube is designed to by by hollow out spiral lamination internal rotor, and it can with hollow out stator and coaxially be relatively rotated with flabellum bearing combination hollow out spiral lamination internal rotor, the axis part of hollow out spiral lamination internal rotor has space for air circulation whereby, and a flabellum bearing can be made to suck air in rotation；Another flabellum bearing rotates synchronously discharge hot-air, forms the flowing that a hollow space accelerates air, heat dissipation performance can be substantially improved in the utility model whereby.
Description
Technical field
The utility model relates to a kind of brushless motor, espespecially a kind of brushless motor of internal rotor.
Background technique
Brushless motor is that a kind of be powered with stator coil generates magnetic field, and the rotor for being equipped with permanent magnet is driven to rotate whereby,
And then convert electrical energy into the driving device of kinetic energy.General brushless motor can generally be divided into two classes, and the first kind is outer rotor,
The rotor ring of permanent magnet will be equipped with around the outside for being sheathed on stator coil, and the stator coil of fixing internal and revolving outer
Rotor motor；Second class is internal rotor, and the rotor for being equipped with permanent magnet is worn and is packed into the stator coil of ring-like arrangement
Side, and fixed stator coils and the rotor motor of rotating inner part on the outside.
In the prior art, the form of a cylindrical body is generally presented in the rotor of inner rotor motor, and in the outer of the cylindrical body
Wall surface runs through around equipped with multiple permanent magnets, and in the axle center part of the cylindrical body equipped with an axis rod；And the part of stator
It is then a hollow tube closed at both ends and surround in inner wall equipped with multiple stator coils.It is interior when internal rotor is in conjunction with stator
Rotor is set to the internal diameter of multiple stator coil, and the axis rod of internal rotor runs through the closed both ends of stator, and in this, as branch
Point make its can stable phase internal rotor is rotated, and both make to be maintained coaxial.
However, such structure can because internal rotor be covered by stator inside and it is bilateral cover, air is not easy
Circulation, so that the thermal energy that stator coil is generated when being powered is not easy to exclude, the poor shortening for leading to service life of heat dissipation effect,
Failure rate improves, and then the inner rotor motor of the prior art has necessity of improvement really.
Utility model content
In view of the shortcomings that the prior art above-mentioned and deficiency, the utility model provide a kind of internal rotor horse of axle center hollow out
Reach, axle center hollow out and with flabellum bearing connect structure can strengthen its heat dissipation, further prolong the service life.
To reach above-mentioned purpose of utility model, technological means used by the utility model is to design a kind of axle center hollow out
Inner rotor motor, wherein including:
One hollow out stator, it includes there is multiple coil parts, multiple coil part is formed around interval setting and at center
One hollow space；
Two flabellum bearings are connected to the hollow out stator and are located at the two sides of multiple coil part, and the respectively flabellum
Bearing has relatively turnable
One bearing outline border is connected to the hollow out stator；
One bearing inside casing is connected to the bearing outline border and includes multiple flabellum portions, and multiple flabellum portion is around setting
In the inner wall of the bearing inside casing；
One hollow out spiral lamination internal rotor, coaxial wear is incorporated into the two bearings of the two flabellums bearing respectively at both ends
Frame, and the hollow out spiral lamination internal rotor is coaxial and is rotatably arranged in the hollow space of the hollow out stator, this is engraved
Empty spiral lamination internal rotor includes
One spiral lamination internal rotor tube body, with both ends open, and the periphery of the both ends open is respectively along the spiral lamination
The extending direction of rotor tube body is recessed to be formed with multiple hollow out spiral grooves, and multiple hollow out spiral groove runs through the hollow out spiral
The inner wall and outside wall surface of line internal rotor, and multiple flabellum portion of the two flabellums bearing is fitted and fixed with respectively in the both ends open
Multiple hollow out spiral groove in；
Multiple magnet, multiple magnet ring are set around the outside wall surface of the spiral lamination internal rotor tube body.
The utility model has the advantage of be hollow out spiral lamination internal rotor and include one by making internal rotor design improvement
Spiral lamination internal rotor tube body and both ends open, both ends of them opening all have the slot of spiral thread, and with spiral lamination internal rotor pipe
Multiple magnet are set to its outside wall surface again as axle center by body, whereby the axis part i.e. spiral lamination of hollow out spiral lamination internal rotor
Internal rotor tube body and be Openworks shape and for air circulation, and with flabellum bearing connection hollow out spiral lamination internal rotor and hollow out stator
So that the two is kept coaxial and can relatively rotate, thus there is no need to run through closed protective lid as fulcrum, i.e., using axis rod
Air permeability can be increased.And the flabellum portion of flabellum bearing is entrenched in the hollow out spiral groove of spiral lamination internal rotor tube body, in
It is that flabellum portion can form fan acceleration in the axis part of spiral lamination internal rotor tube body in the rotation of hollow out spiral lamination internal rotor
The air circulation of axis part, further to increase heat dissipation performance.
Furthermore, the inner rotor motor of the axle center hollow out, wherein the hollow out stator further includes centainly
Sub- tube body, multiple coil part is around the inner wall for being arranged at intervals at the stator tube body, the bearing of an at least flabellum bearing
Outline border is set to the inner wall of the stator tube body.
Furthermore, the inner rotor motor of the axle center hollow out, wherein respectively the flabellum bearing further include it is more
A ball, and respectively the inner wall of the bearing outline border of the flabellum axle is equipped with an external chute, and the outside wall surface of the bearing inside casing is equipped with
One internal chute, multiple ball are set in the internal chute and are set in the external chute simultaneously, the bearing outline border and the bearing inside casing
It is abutted each other with multiple ball, and rotatably connected.
Detailed description of the invention
Fig. 1 is the stereo appearance figure of the utility model.
Fig. 2 is the stereogram exploded view of the utility model.
Fig. 3 is the front view of the utility model.
Fig. 4 is the lateral sectional view of the utility model.
Fig. 5 is the hollow out spiral lamination internal rotor of the utility model and the side structure schematic view of flabellum bearing.
Primary clustering symbol description:
10 hollow out stator, 11 coil part
12 hollow space, 13 stator tube body
20 flabellum bearing, 21 bearing outline border
22 bearing inside casing, 221 flabellum portion
23 ball, 30 hollow out spiral lamination internal rotor
31 spiral lamination internal rotor tube body, 32 magnet
33 hollow out spiral grooves
Specific embodiment
The preferred embodiment for cooperating schema and the utility model below, it is to reach to make a reservation in fact that the utility model, which is further described,
The technological means taken with novel purpose.
As shown in Figs.1 and 2, the inner rotor motor of the axle center hollow out of the utility model includes a hollow out stator
10, two flabellum bearings 20 and a hollow out spiral lamination internal rotor 30.
Hollow out stator 10 includes multiple coil parts 11, and multiple coil part 11 is formed around interval setting and at center
One hollow space 12；Specifically, hollow out stator 10 further includes a stator tube body 13, multiple line in the present embodiment
Circle portion 11 surround the inner wall for being arranged at intervals at stator tube body 13, but is not limited thereto, and hollow out stator 10 can be only more
A coil part 11 is around formation.
It please refers to shown in Fig. 2 and Fig. 5, two flabellum bearings 20 are connected to hollow out stator 10 and are located at hollow out stator 10
The two sides of multiple coil part 11, each flabellum bearing 20 have relatively turnable bearing outline border 21 and a bearing inside casing 22,
Bearing outline border 21 is connected to hollow out stator 10, and specifically bearing outline border 21 is provided at hollow out stator 10 in the present embodiment
The inner wall of stator tube body 13, but be not limited thereto, if hollow out stator 10 does not include when having stator tube body 13, bearing outline border
21 are directly connected in multiple coil part 11；Bearing inside casing 22 includes multiple flabellum portions 221, and multiple flabellum portion 221 is surround
It is set to the inner wall of the bearing inside casing 22, makes bearing inside casing 22 that the form of a fan be presented.In addition, flabellum in the present embodiment
Bearing 20 further includes multiple balls 23, and the inner wall of bearing outline border 21 is equipped with an external chute 211, and bearing inside casing
22 outside wall surface is equipped with an internal chute 222, and multiple ball 23 is set in internal chute 222 and is set in external chute 211 simultaneously, axis
It holds outline border 21 and is abutted each other with bearing inside casing 22 with multiple ball 23, and rotatably connect, that is to say, that flabellum
The form of 23 bearing of a ball is presented in bearing 20, but is not limited, and is also possible to needle bearing, it is only necessary to make bearing inside casing 22
It can mutually be rotated with bearing outline border 21.
It please refers to shown in Fig. 2, Fig. 4 and Fig. 5, the both ends of hollow out spiral lamination internal rotor 30 are coaxially worn respectively is incorporated into two
The two bearings inside casing 22 of flabellum bearing 20, and hollow out spiral lamination internal rotor 30 is coaxial and is rotatably arranged in hollow out stator
In 10 hollow space 12, that is to say, that hollow out spiral lamination internal rotor 30 is after wearing the bearing inside casing 22 of a flabellum bearing 20,
The hollow space 12 of hollow out stator 10 is worn again, and wears the bearing inside casing 22 of another flabellum bearing 20 again；Hollow out spiral
Line internal rotor 30 includes a spiral lamination internal rotor tube body 31 and multiple magnet 32, and multiple magnet 32 is around in spiral lamination
The outside wall surface of rotor tube body 31；Spiral lamination internal rotor tube body 31 has both ends open, and the periphery of both ends open is respectively along spiral
The extending direction of line internal rotor tube body 31 is recessed to be formed with multiple hollow out spiral grooves 33, and two flabellum bearings 20 is multiple
Flabellum portion 221 is fitted and fixed with respectively in multiple hollow out spiral groove 33 of both ends open, whereby hollow out spiral lamination internal rotor
30 spiral lamination internal rotor tube body 31 is combined with the flabellum portion 221 of flabellum bearing 20, and in the bearing that is located at of flabellum portion 221
Frame 22 is then rotatably combined with bearing outline border 21, and bearing outline border 21 is incorporated into the stator tube body 13 of hollow out stator 10, then
Then being combined with hollow out stator 10 in this, as fulcrum of hollow out stator 10, and it is coaxial and be rotatably arranged in hollow out and determine
In the hollow space 12 of son 10.In addition, the direction that extends spirally of hollow out spiral groove 33 is clockwise direction in the present embodiment,
But not limited to this.
It please refers to shown in Fig. 3 and Fig. 4, hollow out spiral lamination internal rotor 30 is designed to that one has both ends open by the utility model
Hollow tube, and using flabellum bearing 20 with the mutually chimeric structure of hollow out spiral lamination internal rotor 30 as fulcrum, and and hollow out
Stator 10 keeps coaxial and relatively turnable combination, and thus the both ends of hollow out stator 10 are flabellum bearing 20 rather than seal
Wall surface is closed, and the axis part of hollow out spiral lamination internal rotor 30 has space for air circulation, more with flabellum bearing 20
Flabellum portion 221 forms the flowing that fan accelerates air in rotation, and heat dissipation performance can be substantially improved in the utility model whereby.
The above is only the preferred embodiment of the utility model, is not done in any form to the utility model
Limitation, although the utility model is disclosed above with preferred embodiment, is not intended to limit the utility model, any to be familiar with
Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (3)
1. a kind of inner rotor motor of axle center hollow out, which is characterized in that wherein include:
One hollow out stator, it includes there is multiple coil parts, multiple coil part forms one around interval setting and at center and engraves
Absolutely empty；
Two flabellum bearings are connected to the hollow out stator and are located at the two sides of multiple coil part, and the respectively flabellum bearing
With relatively turnable
One bearing outline border is connected to the hollow out stator；
One bearing inside casing is connected to the bearing outline border and includes multiple flabellum portions, and multiple flabellum portion surround and is set to this
The inner wall of bearing inside casing；
One hollow out spiral lamination internal rotor, both ends are coaxial respectively to wear the two bearings inside casing for being incorporated into the two flabellums bearing,
And the hollow out spiral lamination internal rotor is coaxial and is rotatably arranged in the hollow space of the hollow out stator, the hollow out spiral shell
Lira internal rotor includes
One spiral lamination internal rotor tube body, with both ends open, and the periphery of the both ends open is respectively along the spiral lamination internal rotor
The extending direction of tube body is recessed to be formed with multiple hollow out spiral grooves, and multiple hollow out spiral groove is in the hollow out spiral lamination
The inner wall and outside wall surface of rotor, and multiple flabellum portion of the two flabellums bearing is fitted and fixed with being somebody's turn to do in the both ends open respectively
In multiple hollow out spiral grooves；
Multiple magnet, multiple magnet ring are set around the outside wall surface of the spiral lamination internal rotor tube body.
2. the inner rotor motor of axle center hollow out according to claim 1, which is characterized in that the hollow out stator further includes
There is a stator tube body, multiple coil part surround the inner wall for being arranged at intervals at the stator tube body, an at least flabellum bearing
The bearing outline border is set to the inner wall of the stator tube body.
3. the inner rotor motor of axle center hollow out according to claim 1 or 2, which is characterized in that respectively the flabellum bearing is into one
Step includes multiple balls, and respectively the inner wall of the bearing outline border of the flabellum axle is equipped with an external chute, and the bearing inside casing
Outside wall surface be equipped with an internal chute, multiple ball be set to the internal chute in and simultaneously be set to the external chute in, the bearing outline border with
The bearing inside casing is abutted each other with multiple ball, and is rotatably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820900998.4U CN208272725U (en) | 2018-06-11 | 2018-06-11 | The inner rotor motor of axle center hollow out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820900998.4U CN208272725U (en) | 2018-06-11 | 2018-06-11 | The inner rotor motor of axle center hollow out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272725U true CN208272725U (en) | 2018-12-21 |
Family
ID=64689365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820900998.4U Expired - Fee Related CN208272725U (en) | 2018-06-11 | 2018-06-11 | The inner rotor motor of axle center hollow out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272725U (en) |
-
2018
- 2018-06-11 CN CN201820900998.4U patent/CN208272725U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 Termination date: 20210611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |