CN213027649U - Motor, fan and air purification device - Google Patents
Motor, fan and air purification device Download PDFInfo
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- CN213027649U CN213027649U CN202022140096.5U CN202022140096U CN213027649U CN 213027649 U CN213027649 U CN 213027649U CN 202022140096 U CN202022140096 U CN 202022140096U CN 213027649 U CN213027649 U CN 213027649U
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Abstract
The utility model relates to a motor technical field provides a motor, fan and air purification device, the motor includes: a stator and a rotor; the stator, comprising: the motor comprises a bearing, a bearing retainer, a coil, a stator core and a circuit board; the bearing holder has: a cylindrical sleeve extending in an axial direction, and a disk portion extending in a radial direction from one end of the sleeve; the bearing is fixed on the shaft sleeve; the coil is wound on the stator core and connected with the circuit board; the stator core is fixed on the peripheral surface of the shaft sleeve; the circuit board is fixed on the disk part; the rotor, comprising: a rotor magnet, a rotor frame and a shaft; the rotor magnet is fixed on a rotor frame, and the rotor frame is fixed on a shaft; the bearing comprises a cylindrical part and a flange part extending from at least one end of the cylindrical part to the radial outer side; the flange portion abuts against an end portion of the sleeve. The utility model discloses can improve the impact resistance in the motor structure.
Description
Technical Field
The utility model relates to a motor technical field especially relates to a motor, fan and air purification device.
Background
Electrical equipment such as an air purifier needs to be provided with a fan to realize air flow. The fan realizes the work of the fan by driving the rotating shaft of the fan by a motor. The motor is the most important component of the fan.
Now an ac motor, will set up the bearing 1 on the axle, the bearing is the oil bearing, fig. 1 is the cross-sectional view of the ac motor of prior art one; fig. 2 is a sectional view of an ac motor according to a second conventional art. The motor shown in fig. 1 has two oil-retaining bearings separately mounted on two housings, and has high axial impact resistance, but because the two oil-retaining bearings are mounted on two components, the concentricity of the two oil-retaining bearings is poor after assembly, and the motor may rotate poorly and make a loud noise during rotation. The motor shown in fig. 2 is designed to centralize two oil-retaining bearings on the same shaft sleeve component, the oil-retaining bearings are designed into a cylindrical type, the connection strength between the oil-retaining bearings and the shaft sleeve is completely dependent on the interference fit between the bearings and the shaft sleeve, and if the interference is small, the axial movement is easy to occur after the oil-retaining bearings are pressed in; if the interference magnitude is large, the deformation of the inner diameter of the bearing after being pressed into the shaft is large, so that the change of the inner hole is large.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the problems that the two oil-containing bearings are arranged on the two shells of the motor in the prior art, the concentricity of the two oil-containing bearings is poor after the two oil-containing bearings are assembled, and the two oil-containing bearings are concentrated on the same shaft sleeve part, and if the interference is small, the axial float is easy to occur after the two oil-containing bearings are pressed in; if the interference magnitude is large, the bearing is pressed into the technical problem that the deformation of the inner diameter is large after the shaft is pressed, a motor, a fan and an air purification device are provided, two oil-containing bearings are concentrated on the same bearing retainer so as to improve the impact resistance of the motor structure, and meanwhile, the two oil-containing bearings are arranged on the same bearing retainer and can improve the concentricity of the two oil-containing bearings through subsequent reaming.
The utility model provides a motor, include: a stator and a rotor;
the stator, comprising: the motor comprises a bearing, a bearing retainer, a coil, a stator core and a circuit board; the bearing holder has: a cylindrical sleeve extending in an axial direction, and a disk portion extending in a radial direction from one end of the sleeve; the bearing is fixed on the shaft sleeve; the coil is wound on the stator core and connected with the circuit board; the stator core is fixed on the peripheral surface of the shaft sleeve; the circuit board is fixed on the disk part;
the rotor, comprising: a rotor magnet, a rotor frame and a shaft; the rotor magnet is fixed on a rotor frame, and the rotor frame is fixed on a shaft;
the bearing comprises a cylindrical part and a flange part extending from at least one end of the cylindrical part to the radial outer side;
the flange portion abuts against an end portion of the sleeve.
Preferably, the number of the bearings is two, and one end of each bearing is provided with a flange portion.
Preferably, the bearing is an oil bearing.
Preferably, the two bearings are arranged at a distance in the axial direction.
Preferably, the bearing on the side close to the rotor frame axially abuts the rotor frame.
Preferably, the motor is further provided with a clamping ring, and the clamping ring is arranged on one side of the bearing close to the output end of the shaft;
the snap ring abuts against a flange portion of the bearing.
Correspondingly, the utility model also provides a fan, the fan the utility model discloses arbitrary embodiment provides a motor.
Correspondingly, the utility model also provides an air purification device, air purification device includes the utility model discloses arbitrary embodiment provides a fan.
The utility model provides a motor, fan and air purification device, the utility model discloses a motor concentrates on the same bearing holder two oiliness bearings, when the oiliness bearing design is the style of flanged, fixes both sides at the axle sleeve, makes the bearing can not take place to remove on the axle sleeve to improve the impact resistance in the motor structure; meanwhile, the two oil-containing bearings are arranged on the same bearing retainer, and the concentricity of the two oil-containing bearings can be improved through subsequent reaming.
Drawings
FIG. 1 is a cross-sectional view of an AC motor according to the first prior art;
FIG. 2 is a cross-sectional view of an AC motor of the second prior art;
fig. 3 is a cross-sectional view of a motor provided by the present invention.
Reference numerals: 1. a bearing; 2. a bearing retainer; 3. a rotor magnet; 4. a rotor frame; 5. a coil; 6. a stator core; 7. a circuit board; 8. a shaft; 9. a snap ring; 101. a cylindrical portion; 102. a flange portion; 201. a shaft sleeve; 202. a disk portion.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.
Example one
Fig. 3 is a cross-sectional view of a motor provided by the present invention. As shown in fig. 3, an embodiment of the present invention provides a motor, including: a stator and a rotor.
The rotor, comprising: rotor magnet 3, rotor frame 4 and shaft 8; the rotor magnet 3 is fixed to a rotor frame 4, and the rotor frame 4 is fixed to a shaft 8.
The stator, comprising: a bearing 1, a bearing holder 2, a coil 5, a stator core 6 and a circuit board 7; the bearing holder 2 has: a cylindrical sleeve 201 extending in the axial direction, and a disc portion 202 extending in the radial direction from one end of the sleeve 201; the bearing 1 is fixed on the shaft sleeve 201; the coil 5 is wound on the stator core 6 and connected with the circuit board 7; the stator core 6 is fixed to the outer peripheral surface of the sleeve 201; the circuit board 7 is fixed to the disk portion 202.
The bearing 1 has a cylindrical portion 101 and a flange portion 102 extending radially outward from at least one end of the cylindrical portion 101; the flange portion 102 abuts on an end portion of the boss 201. In the present embodiment, the flange portion 102 is provided at the end portion of the bearing 1, and the flange portion 102 is brought into contact with the end portion of the sleeve 201, whereby the movement of the bearing 1 is restricted in the axial direction, whereby the bearing 1 can be fixed in the axial direction. The number of the bearings 1 is two, and one end of each bearing 1 is provided with a flange portion 102. Through setting up two bearings 1 and making two bearings 1 fix on same axle sleeve 201, can improve the concentricity of bearing 1, satisfy the rotating characteristic of motor, improve the quality of motor. Two bearings 1 are arranged at intervals in the axial direction 8, so that the contact area between the axial direction 8 and the bearings 1 can be reduced, the bearings 1 can be conveniently arranged at two ends of the shaft sleeve 201, and the assembly efficiency is improved. In the present embodiment, the bearing 1 is an oil-impregnated bearing, and by using the oil-impregnated bearing, the production cost of the motor can be reduced as compared with a ball bearing. The oil-retaining bearing is designed in a flanged fashion so that the bearing does not move on the sleeve.
In the above-described aspect, the bearing 1 on the side closer to the rotor frame 4 abuts against the rotor frame 4 in the axial direction; the bearing 1 is fixed by the rotor frame 4, so that the use of parts is reduced, the cost is reduced, and the assembly efficiency can be improved. The motor is also provided with a clamping ring 9, wherein the clamping ring 9 is arranged on one side of the bearing 1 close to the output end of the shaft 8; the snap ring 9 abuts against the flange portion 102 of the bearing 1. In the present embodiment, the snap ring 9 is provided to prevent the bearing 1 from moving in the axial direction, thereby improving the assembly efficiency of the motor.
The motor of the utility model concentrates two oil-retaining bearings on the same bearing retainer, and the oil-retaining bearings are designed into flanged type and fixed on both sides of the shaft sleeve, so that the bearings can not move on the shaft sleeve, thereby improving the impact resistance of the motor structure; meanwhile, the two oil-containing bearings are arranged on the same bearing retainer, and the concentricity of the two oil-containing bearings can be improved through subsequent reaming.
Example two
An embodiment of the utility model provides a fan, fan includes the utility model discloses the motor that arbitrary embodiment provided.
EXAMPLE III
An embodiment of the utility model provides an air purification device, air purification device includes the utility model discloses arbitrary embodiment provides a fan.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, without substantially departing from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A motor, comprising: a stator and a rotor;
the stator, comprising: the motor comprises a bearing, a bearing retainer, a coil, a stator core and a circuit board; the bearing holder has: a cylindrical sleeve extending in an axial direction, and a disk portion extending in a radial direction from one end of the sleeve; the bearing is fixed on the shaft sleeve; the coil is wound on the stator core and connected with the circuit board; the stator core is fixed on the peripheral surface of the shaft sleeve; the circuit board is fixed on the disk part;
the rotor, comprising: a rotor magnet, a rotor frame and a shaft; the rotor magnet is fixed on a rotor frame, and the rotor frame is fixed on a shaft;
the method is characterized in that:
the bearing comprises a cylindrical part and a flange part extending from at least one end of the cylindrical part to the radial outer side;
the flange portion abuts against an end portion of the sleeve.
2. The motor of claim 1, wherein the bearings are two, and one end of each bearing is provided with a flange portion.
3. The motor of claim 1, wherein the bearing is an oil bearing.
4. The motor of claim 2, wherein the two bearings are axially spaced apart.
5. The motor of claim 2, wherein the bearing adjacent one side of the rotor frame axially abuts the rotor frame.
6. The motor of claim 5, further comprising a snap ring disposed on a side of the bearing proximate the output end of the shaft;
the snap ring abuts against a flange portion of the bearing.
7. A fan, characterized in that the fan comprises a motor according to any one of claims 1 to 6.
8. An air cleaning device, characterized in that it comprises a fan according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022140096.5U CN213027649U (en) | 2020-09-26 | 2020-09-26 | Motor, fan and air purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022140096.5U CN213027649U (en) | 2020-09-26 | 2020-09-26 | Motor, fan and air purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213027649U true CN213027649U (en) | 2021-04-20 |
Family
ID=75479511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022140096.5U Active CN213027649U (en) | 2020-09-26 | 2020-09-26 | Motor, fan and air purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213027649U (en) |
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2020
- 2020-09-26 CN CN202022140096.5U patent/CN213027649U/en active Active
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| 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: 523273 No.3 Industrial Zone, Gaolong Road, Gaopo Town, Dongguan City, Guangdong Province Patentee after: NIDECO Electric (Dongguan) Co.,Ltd. Address before: 523273 No.3 Industrial Zone, Gaolong Road, Gaopo Town, Dongguan City, Guangdong Province Patentee before: NIDEC (DONGGUAN) CO.,LTD. |