CN215419827U

CN215419827U - Easy-to-assemble mounting structure of outer rotor alternating current fan

Info

Publication number: CN215419827U
Application number: CN202121191330.5U
Authority: CN
Inventors: 黄春林; 谭茗文
Original assignee: Wujiang Deshengxin Purification Equipment Co ltd
Current assignee: Wujiang Deshengxin Purification Equipment Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-01-04
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses an easy-assembly mounting structure of an outer rotor alternating current fan, which comprises an end cover, a stator assembly sleeved on the end cover, and a bearing sleeve penetrating through the stator assembly and in limit fit with the end part of the end cover; be equipped with the spacing subassembly that is used for preventing stator module swivelling movement on the end cover, the end cover includes the base, locates the support column that base central point put the axial setting, is equipped with the first keyway that the axial was arranged on the outer wall of support column, stator module includes stator core, is equipped with the second keyway that the axial was arranged on stator core's the inner wall, spacing subassembly is including locating a plurality of spacing strips that support column circumference is used for fixing a position stator module and being used for pegging graft the key piece between first keyway and the second keyway, the bearing housing can be dismantled with the top of support column and be connected. The utility model realizes the fan assembly structure which is convenient for assembly and rework maintenance.

Description

Easy-to-assemble mounting structure of outer rotor alternating current fan

Technical Field

The utility model belongs to the technical field of fans, and particularly relates to an easy-assembly mounting structure of an outer rotor alternating current fan.

Background

An outer rotor fan is a fan that differs from a conventional motor in that the stator is inside the motor and the rotor is outside the stator. The outer rotor fan can be more compact than the inner rotor fan, and is suitable for small box bodies or places with limited structures. When the existing external rotor fan is assembled, the stator, the shell and the bearing sleeve are assembled in a press-fitting or gluing mode, and the sizes of the end cover bearing chamber and the bearing chamber of the bearing seat can be processed only after the stator is pressed, so that the processing procedures are more, the stator winding with embedded wires needs to be protected when the size of the bearing chamber is processed, otherwise, the stator winding can be damaged and scratched, the unnecessary reworking and reworking are caused, and even the stator winding is cut off to cause unnecessary scrapping.

When the stator or the bearing sleeve is pressed, a press and other equipment are needed, glue is required to be uniformly coated during gluing, otherwise, the stator or the bearing sleeve is loosened during processing, reworking is caused, and even waste of parts is caused; when the machine returns work, the end cover, the stator and the bearing sleeve are not convenient to disassemble, and more scrapped parts are needed, so that the processing period of the product is long and the processing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provides an easy-assembly mounting structure of an outer rotor alternating current fan, so that a fan assembly structure convenient for assembly and rework maintenance is realized. In order to achieve the purpose, the technical scheme of the utility model is as follows:

the easy-assembly mounting structure of the outer rotor alternating current fan comprises an end cover, a stator assembly sleeved on the end cover, and a bearing sleeve penetrating through the stator assembly and in limit fit with the end part of the end cover; be equipped with the spacing subassembly that is used for preventing stator module swivelling movement on the end cover, the end cover includes the base, locates the support column that base central point put the axial setting, is equipped with the first keyway that the axial was arranged on the outer wall of support column, stator module includes stator core, is equipped with the second keyway that the axial was arranged on stator core's the inner wall, spacing subassembly is including locating a plurality of spacing strips that support column circumference is used for fixing a position stator module and being used for pegging graft the key piece between first keyway and the second keyway, the bearing housing can be dismantled with the top of support column and be connected.

Specifically, a channel for installing the rotating shaft is arranged in the end cover, a first bearing chamber communicated with the channel is arranged in the bearing sleeve, a second bearing chamber communicated with the channel is arranged in the end cover, and bearings sleeved on the rotating shaft are arranged in the first bearing chamber and the second bearing chamber.

Specifically, the top of support column is equipped with the tang that is located the passageway, the top surface of support column encircles and is equipped with a plurality of first mounting holes.

Specifically, the stator assembly further comprises a stator bracket for fixing the stator core.

Specifically, the bearing sleeve comprises an outer sleeve matched with the inner wall of the stator support, an inner sleeve connected with the outer sleeve to form a step structure, and an outer spigot connected with the end face of the inner sleeve, wherein a plurality of second mounting holes axially penetrating through the inner sleeve are formed in the outer sleeve.

Specifically, the joint of the inner wall of the stator core and the inner wall of the stator support forms a step structure, and the outer wall of the inner sleeve is correspondingly attached to the inner wall of the stator core.

Specifically, the outer spigot and the inner spigot are correspondingly matched in an inserting mode, and the first mounting hole and the second mounting hole are locked and fixed through the mounting piece.

Compared with the prior art, the easy-assembly mounting structure of the outer rotor alternating current fan has the beneficial effects that:

the limiting assembly is arranged between the end cover and the stator assembly, so that the stator assembly and the end cover are stably and quickly assembled; the first bearing chamber and the second bearing chamber are processed in the bearing sleeve and the end cover in advance, so that the defects caused by a traditional processing mode after stator press mounting are avoided, and the processing procedures are reduced; the end cover is matched with the bearing sleeve through the outer spigot and the inner spigot, so that the concentricity of the end cover and the bearing sleeve is effectively ensured; a second mounting hole matched with the first mounting hole is formed in the outer sleeve of the bearing sleeve, so that the mounting part is sunk into the bearing sleeve, and the problem of interference caused by mounting a bearing in the first bearing chamber is avoided; the end cover and the bearing sleeve are both formed by die casting, so that the cost is effectively reduced, and the production efficiency is higher.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the present embodiment after assembly;

FIG. 3 is a schematic view of the end cap structure of the present embodiment;

fig. 4 is a schematic view of a stator core structure in the present embodiment;

FIG. 5 is a schematic view of a bearing housing according to the present embodiment;

FIG. 6 is a schematic cross-sectional view of the bearing housing in this embodiment;

the figures in the drawings represent:

1 end cover, 11 channels, 12 second bearing chambers, 13 bases, 14 support columns, 15 support rings, 16 first key grooves, 2 stator assemblies, 21 stator cores, 22 stator supports, 23 winding coils, 24 second key grooves, 3 bearing sleeves, 31 first bearing chambers, 32 outer sleeves, 33 inner sleeves, 34 inner holes, 4 limiting assemblies, 41 limiting strips, 42 key blocks, 5 inner spigots, 51 first mounting holes, 6 outer spigots, 61 second mounting holes and 62 mounting pieces.

Detailed Description

The technical solutions in the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1 to 6, the present embodiment is an easy-to-assemble mounting structure of an outer rotor ac fan, including an end cover 1, a stator assembly 2 sleeved on the end cover 1, and a bearing sleeve 3 penetrating the stator assembly 2 and in limit fit with an end of the end cover 1; the end cover 1 is provided with a limiting component 4 for preventing the stator component 2 from rotating and moving.

The end cover 1 is internally provided with a channel 11 for installing a rotating shaft, the bearing sleeve 3 is internally provided with a first bearing chamber 31 communicated with the channel 11, the end cover 1 is internally provided with a second bearing chamber 12 communicated with the channel 11, and the first bearing chamber 31 and the second bearing chamber 12 are both provided with bearings (not shown in the figure) sleeved on the rotating shaft.

The end cover 1 comprises a base 13 and a support column 14 arranged in the axial direction at the center of the base 13. The base 13 is provided with a support ring 15, and the support ring 15 and the base 13 form a support groove. The outer wall of the support post 14 is provided with an axially disposed first keyway 16.

The top end of the supporting column 14 is provided with an inner spigot 5 positioned in the channel 11. The top end surface of the support column 14 is provided with a plurality of first mounting holes 51 around.

The stator assembly 2 includes a stator core 21, a stator bracket 22 for fixing the stator core 21, and a winding coil 23 provided on the stator core 21. The inner wall of the stator core 21 is provided with a second key groove 24 arranged axially. The stator frame 22 is assembled with the support slots.

The limiting component 4 comprises a plurality of limiting strips 41 arranged on the circumference of the supporting column 14 and used for positioning the stator component 2, and a key block 42 inserted between the first key groove 15 and the second key groove 24. The limiting strips 41 are axially arranged on the outer wall of the supporting column 14 at equal intervals, and the inner wall of the stator support 22 is correspondingly inserted and matched with the limiting strips 41.

The bearing sleeve 3 is detachably connected with the top end of the supporting column 14, and the bearing sleeve 3 comprises an outer sleeve 32 matched with the inner wall of the stator support 22, an inner sleeve 33 connecting the outer sleeve 32 with the outer sleeve to form a step structure, and an outer spigot 6 connected with the end face of the inner sleeve 33. The outer sleeve 32 is provided with a plurality of second mounting holes 61 axially penetrating the inner sleeve 33. The inner wall of the stator core 21 and the inner wall of the stator support 22 form a step structure, and the outer wall of the inner sleeve 33 is correspondingly attached to the inner wall of the stator core 21.

The outer spigot 6 and the inner spigot 5 are correspondingly matched in an inserting mode, and the first mounting hole 51 and the second mounting hole 61 are locked and fixed through the mounting piece 62.

The first bearing chamber 31 is provided inside the outer sleeve 32, and the inner sleeve 34 having the same diameter as the passage 11 is provided inside the inner sleeve 33.

When using this embodiment, process first bearing room 31 and second bearing room 12 in end cover 1 and bearing housing 3, stator module 2 installs on end cover 1, and spacing subassembly 4 is fixed stator module 2 and end cover 1, prevents stator module 2 from the rotatory removal of autogyration, and bearing housing 3 is pegged graft spacingly with end cover 1 to it is fixed through the locking of installed part 62, realize stator module 2's fast assembly, the pivot runs through passageway 11 and with the bearing pressure equipment of adaptation in the pivot.

In the embodiment, the limiting component 4 is arranged between the end cover 1 and the stator component 2, so that the stator component 2 and the end cover 1 are stably and quickly assembled; the bearing sleeve 3 and the end cover 1 are internally provided with the first bearing chamber 31 and the second bearing chamber 12 in advance, so that the defects caused by the traditional machining mode after stator press mounting are avoided, and the machining procedures are reduced; the end cover 1 is matched with the bearing sleeve 3 through the outer spigot 6 and the inner spigot 5, so that the concentricity of the end cover 1 and the bearing sleeve 3 is effectively ensured; the second mounting hole 61 matched with the first mounting hole 51 is arranged in the outer sleeve 32 of the bearing sleeve 3, so that the mounting piece 62 is sunk into the bearing sleeve 3, and the problem of interference generated when a bearing is mounted in the first bearing chamber 31 is avoided; the end cover 1 and the bearing sleeve 3 are both formed by die casting, so that the cost is effectively reduced, and the production efficiency is higher.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. Outer rotor alternating current fan's easy assembly mounting structure, its characterized in that: the end cover is sleeved with the stator assembly, and the bearing sleeve penetrates through the stator assembly and is in limit fit with the end part of the end cover; be equipped with the spacing subassembly that is used for preventing stator module swivelling movement on the end cover, the end cover includes the base, locates the support column that base central point put the axial setting, is equipped with the first keyway that the axial was arranged on the outer wall of support column, stator module includes stator core, is equipped with the second keyway that the axial was arranged on stator core's the inner wall, spacing subassembly is including locating a plurality of spacing strips that support column circumference is used for fixing a position stator module and being used for pegging graft the key piece between first keyway and the second keyway, the bearing housing can be dismantled with the top of support column and be connected.

2. The easy-to-assemble mounting structure of the external rotor alternating current fan as claimed in claim 1, wherein: the bearing comprises an end cover, and is characterized in that a channel for mounting a rotating shaft is arranged in the end cover, a first bearing chamber communicated with the channel is arranged in the bearing sleeve, a second bearing chamber communicated with the channel is arranged in the end cover, and bearings sleeved on the rotating shaft are arranged in the first bearing chamber and the second bearing chamber.

3. The easy-to-assemble mounting structure of the external rotor alternating current fan as claimed in claim 2, wherein: the top of support column is equipped with the tang in being located the passageway, the top surface of support column encircles and is equipped with a plurality of first mounting holes.

4. The easy-to-assemble mounting structure of the outer rotor alternating current fan as claimed in claim 3, wherein: the stator assembly further includes a stator bracket for fixing the stator core.

5. The easy-to-assemble mounting structure of the outer rotor alternating current fan as claimed in claim 4, wherein: the bearing sleeve comprises an outer sleeve matched with the inner wall of the stator support, an inner sleeve connected with the outer sleeve and forming a step structure with the outer sleeve, and an outer spigot connected with the end face of the inner sleeve, wherein a plurality of second mounting holes axially penetrating through the inner sleeve are formed in the outer sleeve.

6. The easy-to-assemble mounting structure of the external rotor alternating current fan as claimed in claim 5, wherein: the inner wall of the stator core and the inner wall of the stator support form a step structure, and the outer wall of the inner sleeve is correspondingly attached to the inner wall of the stator core.

7. The easy-to-assemble mounting structure of the external rotor alternating current fan as claimed in claim 5, wherein: the outer spigot and the inner spigot are correspondingly matched in an inserting mode, and the first mounting hole and the second mounting hole are locked and fixed through the mounting piece.