CN207082932U - A kind of external rotor electric machine - Google Patents
A kind of external rotor electric machine Download PDFInfo
- Publication number
- CN207082932U CN207082932U CN201720787539.5U CN201720787539U CN207082932U CN 207082932 U CN207082932 U CN 207082932U CN 201720787539 U CN201720787539 U CN 201720787539U CN 207082932 U CN207082932 U CN 207082932U
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- CN
- China
- Prior art keywords
- shell
- axle center
- electric machine
- support frame
- external 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.)
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Abstract
The utility model provides a kind of external rotor electric machine, including shell and axle center, in addition to support frame；Support frame as described above has centre bore, and the axle center is arranged in the centre bore；The end of the shell has outer shroud, inner ring and joint face, and the end of the shell coordinates the end for containing support frame as described above.The beneficial effects of the utility model are：The extension supporting frame between axle center and shell, can solve the problem that the technical problem of concentricity, also can solve the problem that the technical problem of loosening.Further, axle sleeve is set between inner ring and axle center, improves its technique effect.
Description
Technical field
Motor is the utility model is related to, particularly a kind of external rotor electric machine.
Background technology
Existing external rotor electric machine, it includes shell and axle center, and shell is fixed in axle center, and it has following technical problem：
1st, the thickness of motor housing is relatively thin, and shell is fixed in axle center, can not ensure the concentricity between axle center and shell；2nd, electricity is worked as
After machine load long time running, easily loosened between axle center and shell.
Utility model content
In order to solve above-mentioned existing technical problem, the utility model provides a kind of external rotor electric machine, and it is in axle center and outside
Extension supporting frame between shell, can solve the problem that the technical problem of concentricity, also can solve the problem that the technical problem of loosening.
The utility model solves above-mentioned existing technical problem, there is provided a kind of external rotor electric machine, including shell and axle center, also
Including support frame；Support frame as described above has centre bore, and the axle center is arranged in the centre bore；The end of the shell has outer
Ring, inner ring and joint face, the end of the shell coordinate the end for containing support frame as described above.
The utility model further improves as described below.
Including axle sleeve, the axle sleeve is sheathed on the axle center；The axle sleeve is located at the inner ring in the axle center and the shell
Between.
It is excessively to coordinate between the axle center and axle sleeve.
It is interference fit between the shell and the axle sleeve.
Compared to prior art, the beneficial effects of the utility model are：The extension supporting frame between axle center and shell, can
Solve the technical problem of concentricity, also can solve the problem that the technical problem of loosening.Further, axle is set between inner ring and axle center
Set, improves its technique effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model external rotor electric machine.
Embodiment
Explanation and embodiment further illustrate to the utility model below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of external rotor electric machine, in the operating condition, its shell are rotation status.The external rotor electric machine bag
Include shell, axle center 12 and support frame 13；Support frame 13 has centre bore, and axle center 12 is arranged in centre bore, can ensure support frame
13 with the concentricity of centre bore；The end of shell has outer shroud 111, inner ring 112 and joint face 113, and the end of support frame 13 is in
Annular shape, the end of shell coordinate the end for containing support frame 13, ensure that shell is connected firmly with support frame 13, meanwhile, also protect
Card shell will not loosen with respect to axle center 12.
The utility model external rotor electric machine also includes axle sleeve 14, and axle sleeve 14 is sheathed on axle center 12；Axle sleeve 14 is located at axle center 12
Between the inner ring 112 of shell.By many experiments, will be arranged to excessively coordinate between axle center 12 and axle sleeve 14, shell and axle
It is arranged to be interference fitted between set 14, after it loads long time running, concentricity is still good.It assembles principle：Will be outer
Shell is assemblied on support frame 13, and axle sleeve 14 is sheathed on axle center 12, is then inserted axle center 12 in the centre bore of support frame 13,
So that axle sleeve 14 is between axle center 12 and inner ring 112.
In the utility model, the section of the axle sleeve 14 is T-shaped.
The utility model extension supporting frame 13 between axle center 12 and shell, can solve the problem that the technical problem of concentricity, also
It can solve the problem that the technical problem of loosening.Further, axle sleeve 14 is set between inner ring 112 and axle center 12, its skill can be improved
Art effect.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (4)
1. a kind of external rotor electric machine, including shell and axle center, it is characterised in that：
Also include support frame；
Support frame as described above has centre bore, and the axle center is arranged in the centre bore；
The end of the shell has outer shroud, inner ring and joint face, and the end of the shell coordinates the end for containing support frame as described above
Portion.
2. external rotor electric machine according to claim 1, it is characterised in that：Including axle sleeve, the axle sleeve is sheathed on the axle
The heart；The axle sleeve is between the axle center and the inner ring of the shell.
3. external rotor electric machine according to claim 2, it is characterised in that：It is excessively to coordinate between the axle center and axle sleeve.
4. external rotor electric machine according to claim 2, it is characterised in that：Match somebody with somebody between the shell and the axle sleeve for interference
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787539.5U CN207082932U (en) | 2017-06-30 | 2017-06-30 | A kind of external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787539.5U CN207082932U (en) | 2017-06-30 | 2017-06-30 | A kind of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082932U true CN207082932U (en) | 2018-03-09 |
Family
ID=61425851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720787539.5U Active CN207082932U (en) | 2017-06-30 | 2017-06-30 | A kind of external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082932U (en) |
-
2017
- 2017-06-30 CN CN201720787539.5U patent/CN207082932U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |