CN211351928U

CN211351928U - High-speed motor

Info

Publication number: CN211351928U
Application number: CN202020167510.9U
Authority: CN
Inventors: 池金生; 温智雄
Original assignee: Shenzhen Xuanli Technology Co ltd
Current assignee: Shenzhen Xuanli Technology Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-08-25
Anticipated expiration: 2030-02-13

Abstract

The utility model provides a high-speed motor, which comprises a housin, stator module, rotor subassembly and bearing, casing one end is equipped with the stator room, the casing other end is equipped with first bearing room, it is equipped with the wind channel to be located stator room and first bearing room periphery in the casing, stator module locates in the stator room, the rotor subassembly is including arranging the pivot in stator module in and locating pivot one end and arranging the impeller of the first bearing outdoor side in, the bearing is including locating the pivot in it arranges first bearing and the second bearing in the first bearing room in, be equipped with the gasket between first bearing and the second bearing, the outside cover of casing is equipped with the silica gel cover. The high-speed motor is characterized in that two bearings of the high-speed motor are compressed through a gasket, the prepressing is inelastic, extra noise cannot be generated due to vibration, the shell comprises an air channel positioned on the outer side and a stator chamber and a first bearing chamber which are arranged at the center of the air channel, a stator is directly installed in the stator chamber, the concentricity is guaranteed, the first bearing chamber and the stator chamber are concentric, and the high-speed operation is guaranteed not to be eccentric.

Description

High-speed motor

Technical Field

The utility model relates to the field of electric machines, especially, relate to a high-speed motor structure.

Background

The application of the high-speed brushless motor with more than 10 thousands of turns to the blowing cylinder and the hand dryer is more and more, the problem of noise is more prominent, one aspect of the noise is improper pre-pressure of the bearing, and the pre-pressure structure of the mainstream of the high-speed brushless direct current motor at present is that an elastic pre-pressure part is added between two bearings, and the elastic pre-pressure part can be a spring or a wave gasket and the like. The additional elastic preloading part can apply preloading force to the bearing, but the elastic preloading part can become a new noise source due to vibration during high-speed rotation, and abnormal sound with certain frequency can be generated. Meanwhile, the structure is often made into a single cantilever structure with two bearings at the same side of the magnet, when more than two bearings are arranged, more elastic pre-pressing parts need to be added, and the whole system becomes very complicated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a high-speed motor.

The utility model provides a high-speed motor, including casing, stator module, rotor subassembly and bearing, casing one end is equipped with the stator chamber, the casing other end is equipped with first bearing chamber, be located in the casing the stator chamber reaches first bearing chamber periphery is equipped with the wind channel, stator module locates in the stator chamber, the rotor subassembly is including arranging in pivot in the stator module and locating pivot one end is just arranged in the impeller of the outdoor side of first bearing, the bearing is including locating it arranges in the pivot first bearing and second bearing in the first bearing chamber, first bearing with be equipped with the gasket between the second bearing, the outside cover of casing is equipped with the silica gel cover.

As a further improvement of the present invention, the stator assembly includes a coil winding and is disposed one end of the coil winding and the wiring board electrically connected to the coil winding.

As a further improvement of the utility model, the wiring board with still be equipped with the second bearing room between the coil winding, the bearing is still including locating the indoor third bearing of second bearing, the third bearing pass through glue with pivot fixed connection.

As a further improvement, a plurality of spiral clapboards are arranged in the air duct, and the number of the clapboards is odd.

As a further improvement of the utility model, the gasket is a flat gasket.

As a further improvement, the outer wall of the silica gel sleeve is provided with a plurality of silica gel bumps which are evenly distributed.

The utility model has the advantages that: the utility model discloses an its simple structure of high-speed motor compresses tightly through a gasket between two bearings, and this kind of pre-compaction is inelastic, can not produce extra noise because of the vibration, and the casing contains the wind channel that is located the outside and is equipped with a stator room and the first bearing room that wind channel central point put, and the stator directly packs into the stator room, guarantees the concentricity, and first bearing room is concentric with the stator room, guarantees that high-speed operation can not be off-centre.

Drawings

Fig. 1 is an exploded schematic view of a high-speed motor according to the present invention;

fig. 2 is a sectional view of a high-speed motor according to the present invention.

Reference numerals: 1-a shell; 11-a stator chamber; 12-an air duct; 2-a stator assembly; 21-a coil winding; 22-patch panel; 3-a rotor assembly; 31-a rotating shaft; 32-an impeller; 41-a first bearing; 42-a second bearing; 43-a third bearing; 5-silica gel sleeve; 6-gasket.

Detailed Description

As shown in fig. 1, the utility model discloses a high-speed motor, including casing 1, stator module 2, rotor subassembly 3 and bearing, 1 one end of casing is equipped with stator chamber 11, the 1 other end of casing is equipped with first bearing chamber, be located in the casing 1 stator chamber 11 reaches the first bearing chamber periphery is equipped with wind channel 12, stator module 2 is located in the stator chamber 11, rotor subassembly 3 is including arranging in pivot 31 in the stator module 2 and locating pivot 31 one end just is arranged in the impeller 32 of first bearing chamber outside, the bearing is including locating it arranges in on the pivot 31 first bearing is indoor 41 and the second bearing 42, first bearing 41 with be equipped with gasket 6 between the second bearing 42, the outside cover of casing 1 is equipped with silica gel cover 5. The two bearings are compressed through a gasket 6, the prepressing is inelastic and cannot generate extra noise due to vibration, the shell 1 comprises an air channel 12 located on the outer side, a stator chamber 11 and a first bearing chamber, the stator chamber 11 is arranged at the center of the air channel 12, the stator is directly installed in the stator chamber 11, the concentricity is guaranteed, the first bearing chamber and the stator chamber 11 are concentric, and the high-speed operation is guaranteed not to be eccentric.

In this technical scheme, stator module 2 includes coil winding 21 and locates coil winding 21 one end and with coil winding 21 electric connection's wiring board 22, wiring board 22 is equipped with wiring socket, convenient and battery electric connection.

In this technical scheme, wiring board 22 with still be equipped with the second bearing room between the coil winding 21, the bearing is still including locating the indoor third bearing 43 of second bearing, third bearing 43 through glue with pivot 31 fixed connection. The afterbody increases third bearing 43, solves single cantilever structure's unstability, and the bearing is loose with pivot 31 and is joined in marriage, and is fixed with the axle through glue, and this bearing pass through external force eliminate axial play can, treat to remove external force after the glue solidification, do not need extra wave gasket or spring to carry out the pre-compaction.

In this technical scheme, be equipped with a plurality of heliciform baffles in the wind channel 12, the baffle number is odd, can play the effect of gathering wind.

In the technical scheme, the gasket 6 is a flat gasket, so that the structure is more compact.

In this technical scheme, 5 outer walls of silica gel cover are equipped with a plurality of evenly distributed's silica gel bump, and the shock attenuation effect is better, also conveniently fixes in dryer or hand dryer.

The utility model discloses an its simple structure of high-speed motor compresses tightly through a gasket 6 between two bearings, and this kind of pre-compaction is inelastic, can not produce extra noise because of the vibration, and casing 1 contains the wind channel 12 that is located the outside and is equipped with a stator chamber 11 and the first bearing chamber that 12 central points in wind channel put, and stator direct packing stator chamber 11 guarantees the concentricity, and first bearing chamber is concentric with stator chamber 11, guarantees that high-speed operation can not be off-centre.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A high speed electric machine characterized by: including casing, stator module, rotor subassembly and bearing, casing one end is equipped with the stator room, the casing other end is equipped with first bearing room, lie in the casing the stator room reaches first bearing room periphery is equipped with the wind channel, stator module locates in the stator room, the rotor subassembly is including arranging in pivot in the stator module and locating pivot one end is just arranged in the impeller of the first bearing outdoor side, the bearing is including locating it arranges in the pivot first bearing and the second bearing in the first bearing room, first bearing with be equipped with the gasket between the second bearing, the outside cover of casing is equipped with the silica gel cover.

2. The high speed electric machine of claim 1, wherein: the stator assembly comprises a coil winding and a wiring board arranged at one end of the coil winding and electrically connected with the coil winding.

3. The high speed electric machine of claim 2, wherein: the wiring board with still be equipped with the second bearing room between the coil winding, the bearing still including locating the indoor third bearing of second bearing, the third bearing pass through glue with pivot fixed connection.

4. The high speed electric machine of claim 1, wherein: a plurality of spiral partition plates are arranged in the air duct, and the number of the partition plates is odd.

5. The high speed electric machine of claim 1, wherein: the gasket is a flat gasket.

6. The high speed electric machine of claim 1, wherein: the outer wall of the silica gel sleeve is provided with a plurality of silica gel salient points which are evenly distributed.