CN207926404U - A kind of DC brushless motor - Google Patents
A kind of DC brushless motor Download PDFInfo
- Publication number
- CN207926404U CN207926404U CN201820172270.4U CN201820172270U CN207926404U CN 207926404 U CN207926404 U CN 207926404U CN 201820172270 U CN201820172270 U CN 201820172270U CN 207926404 U CN207926404 U CN 207926404U
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- China
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- main body
- shaft
- brushless motor
- spring
- stator module
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Abstract
The utility model is related to DC brushless motor field more particularly to a kind of DC brushless motors.Include shell by the rotor assembly, which includes barrel-shaped main body, and body top face is sealing surface, and top surface is in flat；The body top face offers mounting hole；It is provided with cricoid permanent magnet on the main body inner wall face；It is connected with shaft in the mounting hole, spring is arranged in the shaft on the inside of main body；A kind of DC brushless motor is set to reduce electric machine structure.
Description
Technical field
The utility model is related to DC brushless motor field more particularly to a kind of DC brushless motors.
Background technology
Brshless DC motor is made of motor body and driver, is a kind of typical electromechanical integrated product；At present
Brshless DC motor, when in use since its shell is in arching upward shape, occupied space is bigger, not only increases and is produced into
This, and cause the overall structure of motor larger.
Utility model content
The purpose of this utility model is to provide a kind of DC brushless motor for reducing electric machine structure.
The technical solution of the utility model is as follows：
A kind of DC brushless motor, including stator module, the rotor assembly that is used cooperatively with stator module；Its feature exists
In the rotor assembly includes shell, which includes barrel-shaped main body, and body top face is sealing surface, and top surface is in straight
Shape；The body top face offers mounting hole；It is provided with cricoid permanent magnet on the main body inner wall face；Connect in the mounting hole
It is connected to shaft, spring is arranged in the shaft on the inside of main body.
It is arranged with positioning seat in the shaft of top surface on the inside of the main body, the positioning seat is between shaft and spring；It is described
Spring is volute spring (Pagoda-shaped spring).It is on the other hand fixed to facilitate the installation for being convenient for volute spring by the way that positioning seat is arranged
Position seat is cylinder, and the large radius end cap of volute spring is located on cylindrical positioning seat, and fixed effect is more preferable, and makes taper
Towards stator module, buffering effect is more preferable at the minor radius end of spring.
One end that the shaft is inserted on the inside of main body offers annular groove.By the way that annular groove is arranged, inserted by shaft
After entering stator module, the annular groove of roller end can block stator module, and shaft oneself is effectively avoided to fall off.
The stator module includes iron core, and contains the skeleton of iron core；It is provided with stator winding on the skeleton.Stator
Component one end is connect with rotor assembly, and the other end is fixed in the circuit board；Due to stator module be integrally fixed at it is motionless on wiring board
, after stator module is powered, rotor assembly is coordinated by iron core, the stator winding on permanent magnet and stator module, is realized and is turned
The rotation of sub-component.
The main body section is in inverted " u "-shaped.Since main body is in inverted " u "-shaped, substantially reduces and taken up space.
The end that the shaft is inserted into one end on the inside of main body is tapered.Since the insertion end end of shaft is tapered, with
It facilitates insertion into the through-hole in stator module center.
The utility model has the beneficial effects that：Since shell is in barrel-shaped, and top surface is in flat, greatly reduces shell
Volume；Due to being arranged with spring in shaft, which resists body top face inner opposite end and resists stator module, a side
Face increases pressing force, on the other hand plays the role of a buffering when rotor assembly rotates.
Description of the drawings
Through the following detailed description taken in conjunction with the accompanying drawings, the utility model objects, features and advantages above-mentioned and other will
It becomes apparent.
Wherein：FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model A-A section view figure structure schematic representations；
In attached drawing, 1 is stator module, and 2 be shell, and based on 3,4 be mounting hole, and 5 be permanent magnet, and 6 be shaft, and 7 be bullet
Spring, 8 be positioning seat, and 9 be annular groove.
Specific implementation mode
It is shown in Figure 1, a kind of DC brushless motor, including stator module 1, the rotor set that is used cooperatively with stator module
Part；It is characterized in that, the rotor assembly includes shell 2, which includes barrel-shaped main body 3, and body top face is closing
Face, and top surface is in flat；The body top face offers mounting hole 4；It is provided with cricoid permanent magnetism on the main body inner wall face
Body 5；(fixation) is connected with shaft 6 in the mounting hole, and spring 7 is arranged in the shaft on the inside of main body.Since shell is in drum
Shape, and top surface is in flat, greatly reduces the volume of shell；Due to being arranged with spring in shaft, which resists
Body top face inner opposite end resists stator module, on the one hand increases pressing force, is on the other hand played when rotor assembly rotates
The effect of one buffering.
It is arranged with positioning seat 8 in the shaft of top surface on the inside of the main body, the positioning seat is between shaft and spring；It is described
Spring is volute spring (Pagoda-shaped spring).It is on the other hand fixed to facilitate the installation for being convenient for volute spring by the way that positioning seat is arranged
Position seat is cylinder, and the large radius end cap of volute spring is located on cylindrical positioning seat, and fixed effect is more preferable, and makes taper
Towards stator module, buffering effect is more preferable at the minor radius end of spring.
One end that the shaft is inserted on the inside of main body offers annular groove 9.By the way that annular groove is arranged, inserted by shaft
After entering stator module, the annular groove of roller end can block stator module, and shaft oneself is effectively avoided to fall off.
The stator module includes iron core, and contains the skeleton of iron core；It is provided with stator winding on the skeleton.Stator
Component one end is connect with rotor assembly, and the other end is fixed in the circuit board；Due to stator module be integrally fixed at it is motionless on wiring board
, after stator module is powered, rotor assembly is coordinated by iron core, the stator winding on permanent magnet and stator module, is realized and is turned
The rotation of sub-component.
The main body section is in inverted " u "-shaped.Since main body is in inverted " u "-shaped, substantially reduces and taken up space.
The end that the shaft is inserted into one end on the inside of main body is tapered.Since the insertion end end of shaft is tapered, with
It facilitates insertion into the through-hole in stator module center.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
It makes, to any simple modification, equivalent variations made by above example in every foundation the technical essence of the utility model, falls
Enter within the scope of protection of the utility model.
Claims (5)
1. a kind of DC brushless motor, including stator module, the rotor assembly that is used cooperatively with stator module；It is characterized in that,
The rotor assembly includes shell, which includes barrel-shaped main body, and body top face is sealing surface, and top surface is in flat；
The body top face offers mounting hole；It is provided with cricoid permanent magnet on the main body inner wall face；Connection in the mounting hole
There is shaft, spring is arranged in the shaft on the inside of main body.
2. a kind of DC brushless motor according to claim 1, which is characterized in that on the inside of the main body in the shaft of top surface
It is arranged with positioning seat, the positioning seat is between shaft and spring；The spring is volute spring.
3. a kind of DC brushless motor according to claim 1, which is characterized in that the shaft is inserted into one on the inside of main body
End offers annular groove.
4. a kind of DC brushless motor according to claim 1, which is characterized in that the main body section is in inverted " u "-shaped.
5. a kind of DC brushless motor according to claim 1, which is characterized in that the shaft is inserted into one on the inside of main body
The end at end is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172270.4U CN207926404U (en) | 2018-01-31 | 2018-01-31 | A kind of DC brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820172270.4U CN207926404U (en) | 2018-01-31 | 2018-01-31 | A kind of DC brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926404U true CN207926404U (en) | 2018-09-28 |
Family
ID=63602370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820172270.4U Active CN207926404U (en) | 2018-01-31 | 2018-01-31 | A kind of DC brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926404U (en) |
-
2018
- 2018-01-31 CN CN201820172270.4U patent/CN207926404U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |