CN208939693U - A kind of outer rotor brushless motor - Google Patents
A kind of outer rotor brushless motor Download PDFInfo
- Publication number
- CN208939693U CN208939693U CN201821724656.8U CN201821724656U CN208939693U CN 208939693 U CN208939693 U CN 208939693U CN 201821724656 U CN201821724656 U CN 201821724656U CN 208939693 U CN208939693 U CN 208939693U
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- shaft
- base
- rotor
- circuit unit
- casing
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Abstract
The utility model discloses a kind of outer rotor brushless motors, including base, casing, circuit unit, wound stator, PM rotor and shaft, it is characterized in that, the circuit unit, wound stator is fixed on base, the PM rotor and shaft are fixed at the inner wall of casing, wherein, the PM rotor is located at surrounding, shaft is located at center, it drives casing to rotate when PM rotor rotates and then drives shaft rotation, the shaft is constructed by shaft hole matching, across wound stator, circuit unit and base, it is stretched out on the outside of to base, form shaft output end.Compact-sized, scientific and reasonable, high reliablity, long service life can effectively reduce cost.
Description
Technical field
The utility model relates to motor, in particular to a kind of outer rotor brushless motor.
Background technique
Traditional valve DC brushless motor is generally adopted by inner-rotor brushless motor, constructs complex, cost
Height, and reliability is low, and service life is also limited.Therefore, there is also many unreasonable for traditional valve DC brushless motor
Place, need to make improvements perfect.
Utility model content
In view of the above deficiencies, the purpose of the utility model is to provide a kind of outer rotor brushless motor, compact-sized, sections
It learns rationally, high reliablity, long service life can effectively reduce cost.
The technical solution adopted in the utility model are as follows: a kind of outer rotor brushless motor, including base, casing, circuit unit,
Wound stator, PM rotor and shaft, which is characterized in that the circuit unit, wound stator are fixed on base, institute
It states PM rotor and shaft is fixed at the inner wall of casing, wherein the PM rotor is located at surrounding, during shaft is located at
The heart drives casing to rotate and then drives shaft rotation when PM rotor rotates, the shaft is constructed by shaft hole matching, passed through
Wound stator, circuit unit and base stretch out to base outside, form shaft output end.
Further, the base is provided with bearing and is assembled when the shaft passes through base by the bearing.
Further, the base is provided with stator holder, and the stator holder is in the shape of a " convex ", and the wound stator is set
It sets on the inside of stator holder, the PM rotor is arranged on the outside of stator holder.
The utility model has the advantage that compact-sized, scientific and reasonable, high reliablity, long service life can effectively drop
Low cost.
Explanation and specific embodiment with reference to the accompanying drawing, the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the overall structure diagram of outer rotor brushless motor；
Fig. 2 is the fractionation structural representation of Fig. 1；
Fig. 3 is the fit structure schematic diagram of machine, stator holder, circuit unit, wound stator；
Fig. 4 be casing, PM rotor, shaft fit structure schematic diagram；
Fig. 5 is the fixed structural schematic diagram of stator；
In figure: base 1；Casing 2；Circuit unit 3；Wound stator 4；PM rotor 5；Shaft 6；Stator holder 7.
Specific embodiment
Referring to Fig. 1 to 5, outer rotor brushless motor provided by the present embodiment, including base 1, casing 2, circuit unit 3,
Wound stator 4, PM rotor 5 and shaft 6, the circuit unit 3, wound stator 4 are fixed on base 1, it is described forever
Magnet rotor 5 and shaft 6 are fixed at the inner wall of casing 2, wherein the PM rotor 5 is located at surrounding, and shaft 6 is located at
Center drives casing 1 to rotate and then shaft 6 is driven to rotate when PM rotor 5 rotates, the shaft 6 passes through shaft hole matching structure
Make, pass through wound stator 4, circuit unit 3 and base 1, to base 1 on the outside of stretch out, formed shaft output end.Circuit unit is general
Including Hall subassembly.
Further, the base 1 is provided with bearing and is assembled when the shaft 6 passes through base 1 by the bearing.
Further, the base 1 is provided with stator holder 7, which fixes 7 in the shape of a " convex ", the wound stators 4
Setting is in 7 inside of stator holder, and the setting of PM rotor 5 is in 7 outside of stator holder.The stator holder 7 adds
Enter, the overall stability of motor can be increased considerably, operation vibration is small, and noise is small.
The utility model is not limited to the above embodiment, using identical or approximate as the utility model above-described embodiment
Technical characteristic, and other obtained a kind of outer rotor brushless motors, both are within the protection scope of the present invention.
Claims (3)
1. a kind of outer rotor brushless motor, including base, casing, circuit unit, wound stator, PM rotor and shaft,
It is characterized in that, the circuit unit, wound stator are fixed on base, and the PM rotor and shaft are fixed at
The inner wall of casing, wherein the PM rotor is located at surrounding, and shaft is located at center, and PM rotor drives casing when rotating
It rotating and then drives shaft rotation, the shaft is constructed by shaft hole matching, wound stator, circuit unit and base are passed through, to
It is stretched out on the outside of base, forms shaft output end.
2. outer rotor brushless motor according to claim 1, which is characterized in that the base is provided with bearing, and described turn
When axis passes through base, assembled by the bearing.
3. outer rotor brushless motor according to claim 1, which is characterized in that the base is provided with stator holder,
The stator holder is in the shape of a " convex ", and the wound stator is arranged on the inside of stator holder, and the PM rotor setting exists
On the outside of stator holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724656.8U CN208939693U (en) | 2018-10-24 | 2018-10-24 | A kind of outer rotor brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724656.8U CN208939693U (en) | 2018-10-24 | 2018-10-24 | A kind of outer rotor brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208939693U true CN208939693U (en) | 2019-06-04 |
Family
ID=66725620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821724656.8U Active CN208939693U (en) | 2018-10-24 | 2018-10-24 | A kind of outer rotor brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208939693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318340A (en) * | 2023-09-19 | 2023-12-29 | 余姚市雀美电机有限公司 | Novel brushless motor |
-
2018
- 2018-10-24 CN CN201821724656.8U patent/CN208939693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318340A (en) * | 2023-09-19 | 2023-12-29 | 余姚市雀美电机有限公司 | Novel brushless motor |
| CN117318340B (en) * | 2023-09-19 | 2024-04-26 | 余姚市雀美电机有限公司 | Novel brushless motor |
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| GR01 | Patent grant |