CN210686390U - Outer rotor hair-dryer - Google Patents
Outer rotor hair-dryer Download PDFInfo
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- CN210686390U CN210686390U CN201921737465.XU CN201921737465U CN210686390U CN 210686390 U CN210686390 U CN 210686390U CN 201921737465 U CN201921737465 U CN 201921737465U CN 210686390 U CN210686390 U CN 210686390U
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- outer rotor
- motor shaft
- motor
- bearing
- fan blade
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Abstract
The utility model discloses an external rotor blower, which comprises a blower body, wherein the blower body comprises a front casing and a rear casing which are mutually communicated; a blowing fan blade is arranged in the front shell; an outer rotor motor is arranged in the rear shell; a motor shaft of the outer rotor motor extends into the front casing and is fixedly connected with a shaft part of the blowing fan blade; the outer rotor motor comprises a motor shaft, an inner stator and an outer rotor; the motor shaft is fixed in the rear shell through a first bearing and a second bearing, a damping ring is fixedly mounted on the first bearing, and a shaft end check ring is mounted on the motor shaft outside the second bearing. The utility model uses the external rotor motor to improve the torque of the blower, thereby reducing the energy consumption, improving the power and reducing the use of parts such as gears and the like; and the utility model discloses a motor shaft and external rotor all are the pivoted, have both solved the problem that improves the moment of torsion, have the output shaft of transmission moment of torsion again, do not influence the use of the fan blade of blowing.
Description
Technical Field
The utility model relates to a hair-dryer especially relates to an external rotor hair-dryer.
Background
The inner rotor motor that often provides the moment of torsion in the hair-dryer among the prior art, but the moment of torsion of inner rotor motor is little, just can hardly satisfy the demand when needing great moment of torsion and acceleration. Or the torque of the inner rotor motor is increased by increasing the large gear ratio through the gear set, so that the gear structure is required to be additionally added.
Therefore, how to improve the torque under the prerequisite of guaranteeing simple structure just becomes the starting point of the research of the utility model.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides an external rotor blower.
In order to solve the technical problem, the utility model discloses a technical scheme is: an outer rotor blower comprises a blower body, wherein the blower body comprises a front casing and a rear casing which are communicated with each other; a blowing fan blade is arranged in the front shell; an outer rotor motor is arranged in the rear shell; a motor shaft of the outer rotor motor extends into the front casing and is fixedly connected with a shaft part of the blowing fan blade;
the outer rotor motor comprises a motor shaft, an inner stator and an outer rotor; the motor shaft is fixed in the rear shell through a first bearing and a second bearing, a damping ring is fixedly mounted on the first bearing, and a shaft end check ring is mounted on the motor shaft outside the second bearing.
The inner stator is sleeved on the motor shaft, and an aluminum bracket is fixed in the inner stator; one end of the aluminum bracket extends out of the end part of the inner stator to form a fixed part, and the fixed part is fixedly connected with the rear shell so that the inner stator is fixedly connected with the rear shell through the aluminum bracket; the outer rotor is sleeved outside the inner stator and fixedly connected with the motor shaft through outer rotor fan blades.
Furthermore, a plurality of dovetail grooves are formed in the inner side of the outer rotor, permanent magnets are fixed in the dovetail grooves, and the permanent magnets are fixed in the dovetail grooves through outer rotor steel sheets.
Furthermore, an air blowing port is formed in the front shell; the rear shell is provided with a handle.
Furthermore, a gasket is arranged between the motor shaft and the blowing fan blade; the end part of the motor shaft is sealed and fixed with the blowing fan blade through a nut.
The utility model uses the external rotor motor to improve the torque of the blower, thereby reducing the energy consumption, improving the power and reducing the use of parts such as gears and the like; and the utility model discloses a motor shaft and external rotor all are the pivoted, have both solved the problem that improves the moment of torsion, have the output shaft of transmission moment of torsion again, do not influence the use of the fan blade of blowing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
In the figure: 1. a front housing; 2. a blowing fan blade; 3. an outer rotor; 4. an inner stator; 5. a rear housing; 6. a damping ring; 7. a motor shaft; 8. a nut; 9. a gasket; 10. a first bearing; 11. an aluminum bracket; 12. an outer rotor steel sheet; 13. outer rotor fan blades; 14. a shaft end retainer ring; 15. a second bearing; 16. an air blowing port; 17. and (4) carrying out handle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
An external rotor blower shown in fig. 1 and 2 comprises a blower body, wherein the blower body comprises a front casing 1 and a rear casing 5 which are communicated with each other; the front shell is internally provided with a blowing fan blade 2, and is provided with a blowing port 16; wind is generated through the rotation of the wind blowing fan blades, so that the wind is blown out from the wind blowing opening. The back shell is provided with a handle 17, which is convenient for people to use and can be held by people to use the utility model.
An outer rotor motor is arranged in the rear shell; a motor shaft of the outer rotor motor extends into the front casing and is fixedly connected with a shaft part of the blowing fan blade; the rotation of the blowing fan blade is realized by providing torsion for the blowing fan blade through the outer rotor motor. A gasket 9 is arranged between the motor shaft and the blowing fan blade, and the gasket is arranged in a contact gap between the motor shaft and the blowing fan blade, so that damage to surrounding parts caused by rotation and vibration of the blowing fan blade can be prevented. The end part of the motor shaft is sealed and fixed with the blowing fan blade through the nut 8, on one hand, the end part of the motor shaft can be sealed by the nut, on the other hand, the screwed nut can provide pressing force for the blowing fan blade, so that the blowing fan blade is fixed on the motor shaft.
The outer rotor motor comprises a motor shaft 7, an inner stator 4 and an outer rotor 3; the motor shaft 7 is fixed in the rear shell through a first bearing 10 and a second bearing 15, a damping ring 6 is fixedly mounted on the first bearing, and a shaft end retaining ring 14 is mounted on the motor shaft outside the second bearing. The same principle as the rotation of an electric machine, except that an external rotor electric machine is one in which the rotor is external to the electric machine and rotates, and the stator is internal to the electric machine and fixed. The first bearing and the second bearing can stabilize the motor shaft and prevent the motor shaft from vibrating in the operation process. Because the first bearing is closest to the blowing fan blade, the weight of the blowing fan blade can easily vibrate in operation, and therefore the damping ring is added to ensure the stable operation of the device. The shaft end retainer ring is used for positioning and fixing the motor shaft, can bear severe vibration and impact load, and can also increase the running stability of the device.
The inner stator 4 is sleeved on the motor shaft, and an aluminum bracket 11 is fixed in the inner part of the inner stator; one end of the aluminum bracket extends out of the end part of the inner stator to form a fixed part, and the fixed part is fixedly connected with the rear shell so that the inner stator is fixedly connected with the rear shell through the aluminum bracket; the outer rotor is sleeved outside the inner stator and fixedly connected with the motor shaft through outer rotor blades 13, so that the motor shaft can be driven to rotate by the rotation of the outer rotor, the motor shaft provides rotating torque force for the blowing blades, the outer rotor blades are driven to rotate, and heat dissipation to the inside of the outer rotor motor is facilitated.
Compared with an inner rotor motor in the prior art, a magnetic field is formed after the coil wound on the inner rotor is electrified, the magnetic field force is different from the magnetic field force direction of the permanent magnet on the outer stator, and the force action is generated, so that the inner rotor is pushed to rotate. The utility model discloses the principle is rather than the same the utility model discloses a winding coil on the inner stator is fixed permanent magnet on outer rotor, produces magnetic field and then the effect of production force after the coil circular telegram, and it is rotatory to promote the outer rotor, because outer rotor and motor shaft fixed connection, the motor shaft is not fixed mutually with the inner stator to make the epaxial moment of torsion that produces of motor and not influenced by the inner stator.
A plurality of dovetail grooves are formed in the inner side of the outer rotor, permanent magnets are fixed in the dovetail grooves, and the permanent magnets are fixed in the dovetail grooves through outer rotor steel sheets 12. The dovetail groove is used for accommodating the permanent magnet, so that a magnetic field can be formed in the outer rotor. The outer rotor steel sheet has the effect of blocking the permanent magnet to prevent the permanent magnet from falling off, so that the use of glue can be saved, and the heat dissipation performance is improved.
The utility model discloses when using, install the battery package or connect the electric socket in the rear housing, make the utility model discloses can use direct current or alternating current.
The utility model is different from the prior art in that:
a. the utility model is different from the hair dryer in the prior art, and solves the problem of improving the torque which can be solved by arranging a gear set when an inner rotor motor is used in the traditional technology, and the utility model improves the torque of the hair dryer by using the outer rotor motor, thereby reducing the energy consumption, improving the power and reducing the use of parts such as gears and the like;
b. the utility model discloses also distinguish with the external rotor electric machine among the prior art, the motor shaft of external rotor electric machine is immovable among the prior art, only the external rotor can rotate, is applied to on the fan usually, and the utility model discloses a motor shaft and external rotor all are the pivoted, have both solved the problem that improves the moment of torsion, have the output shaft of transmission moment of torsion again, do not influence the use of the fan blade of blowing.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (4)
1. The utility model provides an external rotor hair-dryer, includes the hair-dryer body, its characterized in that: the hair drier body comprises a front shell (1) and a rear shell (5) which are communicated with each other; the front shell is internally provided with a blowing fan blade (2); an outer rotor motor is arranged in the rear shell; a motor shaft of the outer rotor motor extends into the front casing and is fixedly connected with a shaft part of the blowing fan blade;
the outer rotor motor comprises a motor shaft (7), an inner stator (4) and an outer rotor (3); the motor shaft (7) is fixed in the rear shell through a first bearing (10) and a second bearing (15), a damping ring (6) is fixedly installed on the first bearing, and a shaft end check ring (14) is installed on the motor shaft outside the second bearing;
the inner stator (4) is sleeved on the motor shaft, and an aluminum bracket (11) is fixed in the inner stator; one end of the aluminum bracket extends out of the end part of the inner stator to form a fixed part, and the fixed part is fixedly connected with the rear shell so that the inner stator is fixedly connected with the rear shell through the aluminum bracket; the outer rotor is sleeved on the outer side of the inner stator, and the outer rotor is fixedly connected with the motor shaft through outer rotor fan blades (13).
2. An external rotor blower as claimed in claim 1, wherein: a plurality of dovetail grooves are formed in the inner side of the outer rotor, permanent magnets are fixed in the dovetail grooves, and the permanent magnets are fixed in the dovetail grooves through outer rotor steel sheets (12).
3. An external rotor blower as claimed in claim 2, wherein: the front shell is provided with an air blowing port (16); the rear shell is provided with a handle (17).
4. An external rotor blower as claimed in claim 3, wherein: a gasket (9) is arranged between the motor shaft and the blowing fan blade; the end part of the motor shaft is blocked and fixed with the blowing fan blade through a nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737465.XU CN210686390U (en) | 2019-10-16 | 2019-10-16 | Outer rotor hair-dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921737465.XU CN210686390U (en) | 2019-10-16 | 2019-10-16 | Outer rotor hair-dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686390U true CN210686390U (en) | 2020-06-05 |
Family
ID=70901668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921737465.XU Active CN210686390U (en) | 2019-10-16 | 2019-10-16 | Outer rotor hair-dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686390U (en) |
-
2019
- 2019-10-16 CN CN201921737465.XU patent/CN210686390U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee after: Jiangsu anchor Tools Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU ANCHOR TOOLS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230721 Address after: 226100 Room 10, No. 88 Tiebao Road, Baochang Town, Haimen District, Nantong City, Jiangsu Province Patentee after: Jiangsu Tengya Iron Anchor Tool Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: Jiangsu anchor Tools Co.,Ltd. |