CN211573832U

CN211573832U - Split type fan

Info

Publication number: CN211573832U
Application number: CN202020055626.3U
Authority: CN
Inventors: 纪大山
Original assignee: 纪大山
Current assignee: Jiawode (Foshan) Technology Co.,Ltd.
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-25
Anticipated expiration: 2030-01-10

Abstract

The utility model belongs to the technical field of the fan technique and specifically relates to indicate a split type fan, which comprises an outer shell, the fan blade, the magnetic ring, three-phase coreless coil winding and insulating end cover, the shell includes the sleeve, with the inner core of the coaxial setting of sleeve and connect in a plurality of aviation baffles of sleeve and inner core, the aviation baffle is involute arc face form, the sleeve, the inner core encloses with two adjacent aviation baffles and establishes into the wind channel, the inner core is equipped with installation bearing's mounting hole, the inner core is equipped with the projection, the projection is equipped with the through-hole, the inner core is equipped with a plurality of louvres with the mounting hole intercommunication, magnetic ring and fan blade suit are outside the both ends of pivot respectively, three-phase coreless coil winding cover is located outside the magnetic ring, and be equipped with rotation gap between the two, insulating end cover is installed. The utility model discloses a radiating effect is good, and the dismouting is convenient with the maintenance, and expansibility is good, and the axiality of pivot and sleeve and inner core is good, and it is stable to rotate, and the air output is big, and is efficient, long service life.

Description

Split type fan

Technical Field

The utility model belongs to the technical field of the fan technique and specifically relates to indicate a split type fan.

Background

The fan mainly comprises motor, fan blade, shell. There are two main types of fans in the prior art: one is an integrated fan, and the other is a split fan. The existing split type fan has poor heat dissipation effect, short service life and poor coaxiality. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a split type fan that the radiating effect is good, long service life, the axiality is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a split type fan comprises a shell, fan blades, a rotating shaft, a magnetic ring, a three-phase coreless coil winding and an insulating end cover, wherein the shell comprises a sleeve, an inner core and a plurality of air deflectors, the inner core is arranged at an air inlet end of the sleeve and is coaxial with the sleeve, the air deflectors are connected between the inner wall of the sleeve and the outer wall of the inner core and are in an involute arc surface shape, the air deflectors are arranged in an annular array around the central axis of the inner core, the inner wall of the sleeve, the outer wall of the inner core and two adjacent air deflectors surround to form an air guide channel, a mounting hole is concavely arranged on the inner side surface of the inner core, a plurality of bearings which are arranged in a row are arranged in the mounting hole, a convex column is convexly arranged on the outer side surface of the inner core, a through hole communicated with the mounting hole is formed in the convex column, a plurality of heat dissipation holes are, the rotating shaft is arranged on an inner ring of the bearing and penetrates through the through hole, the magnetic ring is sleeved outside one end of the rotating shaft, the fan blade is sleeved outside the other end of the rotating shaft, the fan blade is located in an air inlet end of the sleeve, the protruding column is used for abutting against one side of the fan blade, the three-phase coreless coil winding is sleeved outside the magnetic ring, a rotating gap is formed between the inner wall of the three-phase coreless coil winding and the outer wall of the magnetic ring, and the insulating end cover is detachably arranged at an air outlet end of the sleeve and used for fixing the three.

Furthermore, a plurality of arc lugs extend from the inner side surface of the inner core, the arc lugs are arranged around the mounting hole in an annular array mode around the central axis of the inner core, and one end of the three-phase coreless coil winding is sleeved outside the arc lugs.

Further, insulating end cover includes the end ring, connects in a plurality of collets of the one end of end ring, connects in a plurality of buckle claws of the circumference of end ring and connects in a plurality of stoppers of the other end of end ring, and outside three-phase coreless coil winding was located to a plurality of collets cover, a plurality of buckle claws all were connected with sleeve buckle, and a plurality of stoppers all contradict the other end of three-phase coreless coil winding.

Furthermore, the inner side surface of the inner core is concavely provided with a jack, and one end of the collet, which is far away from the end ring, is provided with an insert inserted into the jack.

Furthermore, the inner side of the limiting block is convexly provided with a limiting piece which is arranged opposite to one collet, one side of the limiting piece, the limiting block and the collet are enclosed to form a limiting groove, the other end of the three-phase coreless coil winding is inserted into the limiting groove, and a space is formed between the other side of the limiting piece and the outer side wall of the magnetic ring.

Furthermore, a second bearing is arranged between the limiting pieces of the limiting blocks, and one end of the rotating shaft penetrates through the magnetic ring and then is inserted into the inner ring of the second bearing.

Furthermore, an arc surface is arranged on the other side of the limiting piece, and the radian of the arc surface is the same as that of the second bearing.

Furthermore, a clamping hole is formed in the middle of the sleeve, and a clamping block clamped in the clamping hole is arranged at one end, far away from the end ring, of the clamping claw.

Further, the rotating clearance is 0.5mm-0.8 mm.

Further, telescopic air-out end is provided with the constant head tank, and the buckle claw is provided with the locating piece of inserting and locating in the constant head tank near the one end of near the end ring.

The utility model has the advantages that: during actual work, one part of airflow generated by rotation of the fan blade dissipates heat of internal parts (such as a rotating shaft, a bearing, a magnetic ring, a three-phase hollow cup coil winding and the like) of the fan through the plurality of radiating holes, the other part of airflow is blown out through the plurality of air guide channels, and in the process that the airflow is blown out of the sleeve, the airflow can not only be directly blown out of the sleeve, but also be diffused into a rotating gap and blown out through the rotating gap, so that the heat dissipation of the magnetic ring and the three-phase hollow cup coil winding is more facilitated, the radiating effect is good, the service life of the fan is prolonged, and the fan adopts a split structure, so that the fan is convenient to disassemble; the air deflector is in an involute arc surface shape, and guides airflow, so that the resistance of the airflow is reduced, the noise is reduced, and the air quantity and the air pressure generated by the fan are improved; the inner wall of mounting hole carries on spacingly to the bearing to guarantee the stability of bearing, bearing and through-hole are run through to the pivot, make the both ends of pivot be the cantilever setting, support the pivot through the bearing, and can guarantee pivot and inner core and telescopic axiality well, improved pivot pivoted stability and efficiency. The utility model discloses a compact structure, the radiating effect is good, and the dismouting is convenient with the maintenance, and expansibility is good, and the axiality of pivot and sleeve and inner core is good, and it is stable to rotate, and airflow flow resistance is little, and the air output is big, and air gap density is big, and the fan is efficient, long service life.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of another perspective of the present invention.

Fig. 3 is a schematic view of the exploded structure of the present invention.

Fig. 4 is a schematic perspective view of the housing of the present invention.

Description of reference numerals:

1. a housing; 11. a sleeve; 111. a snap-in hole; 112. positioning a groove; 12. an inner core; 121. a jack; 122. heat dissipation holes; 13. an air deflector; 14. an air guide duct; 15. mounting holes; 16. a bearing; 17. a convex column; 18. a through hole; 19. a circular arc lug; 2. a fan blade; 3. a magnetic ring; 4. a three-phase coreless coil winding; 5. an insulating end cap; 50. a guide slope; 51. an end ring; 52. a collet; 53. a snap-fit claw; 54. a limiting block; 55. a plug-in; 56. a limiting sheet; 57. a limiting groove; 58. a circular arc surface; 59. a buckling block; 591. positioning blocks; 6. a rotating shaft.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 4, the utility model provides a split type fan, which comprises a housing 1, a fan blade 2, a rotating shaft 6, a magnetic ring 3, a three-phase coreless coil winding 4 and an insulating end cover 5, wherein the housing 1 comprises a sleeve 11, an inner core 12 arranged at an air inlet end of the sleeve 11 and coaxially arranged with the sleeve 11, and a plurality of air deflectors 13 connected between an inner wall of the sleeve 11 and an outer wall of the inner core 12, the air deflectors 13 are in an involute arc surface shape, the air deflectors 13 are arranged in an annular array around a central axis of the inner core 12, the inner wall of the sleeve 11, the outer wall of the inner core 12 and two adjacent air deflectors 13 are enclosed to form an air guide duct 14, a mounting hole 15 is concavely arranged on an inner side surface of the inner core 12, a plurality of bearings 16 arranged in a row are arranged in the mounting hole 15, a convex column 17 is convexly arranged on an outer side surface of the inner core, the through hole 18 penetrates through the convex column 17, the inner core 12 is provided with a plurality of heat dissipation holes 122, the plurality of heat dissipation holes 122 are arranged around the central axis of the inner core 12 in an annular array manner around the periphery of the mounting hole 15 and are communicated with the mounting hole 15, the rotating shaft 6 is arranged on the inner ring of the bearing 16 and penetrates through the through hole 18, the magnetic ring 3 is sleeved outside one end (tail end) of the rotating shaft 6, the fan blade 2 is sleeved outside the other end (head end) of the rotating shaft 6, the fan blade 2 is positioned in the air inlet end of the sleeve 11, the convex column 17 is used for abutting against one side of the fan blade 2, the three-phase coreless coil winding 4 is sleeved outside the magnetic ring 3, a rotating gap is arranged between the inner wall of the three-phase coreless coil winding 4 and the outer wall of the magnetic ring 3, the insulating end cover 5 is detachably arranged at the air outlet end of the sleeve 11 and used, the fan blade 2 is positioned in the sleeve 11, so that the fan is compact in structure, the fan blade 2 is protected, and safety performance is good. Preferably, the number of the bearings 16 is two, two bearings 16 are mounted in the mounting hole 15 in parallel, and the housing 1 is an insulating housing; the convex column 17 is used for abutting against the inner side surface of the fan blade 2 so as to reduce the contact area between the inner core 12 and the fan blade 2 and further reduce the friction resistance suffered by the fan blade 2 during rotation.

During actual work, one part of airflow generated by rotation of the fan blade 2 dissipates heat of internal parts (such as the rotating shaft 6, the bearing 16, the magnetic ring 3, the three-phase coreless coil winding 4 and the like) of the fan through the plurality of heat dissipation holes 122, the other part of the airflow is blown out through the plurality of air guide channels 14, and in the process that the airflow is blown out of the sleeve 11, the airflow can not only be directly blown out of the sleeve 11, but also can be diffused into the rotating gap and blown out through the rotating gap, so that the heat dissipation of the magnetic ring 3 and the three-phase coreless coil winding 4 is facilitated, the heat dissipation effect is good, the service life of the fan is prolonged, and the fan adopts a split structure, so that the fan can be; the air deflector 13 is in an involute arc surface shape, and the air deflector 13 in the involute arc surface shape guides airflow, so that the resistance of the airflow is reduced, the noise is reduced, and the air volume and the air pressure generated by the fan are improved; the inner wall of mounting hole 15 is spacing to bearing 16, in order to guarantee bearing 16's stability, the thickness sum of two bearings 16 is not more than the hole depth of mounting hole 15, make bearing 16 and inner core 12's compact structure, pivot 6 runs through two bearings 16 and through-hole 18, make the both ends of pivot 6 be the cantilever setting, support pivot 6 through two bearings 16, and can guarantee pivot 6 and inner core 12 and sleeve 11's axiality well, pivot 6 pivoted stability and efficiency have been improved. The utility model discloses a compact structure, the radiating effect is good, and the dismouting is convenient with the maintenance, and expansibility is good, and magnetic field distribution is even, and pivot 6 is good with sleeve 11 and inner core 12's axiality, rotates stably, and airflow flow resistance is little, and the air output is big, and air gap density is big, and the fan is efficient, long service life.

Specifically, the fan blade 2 and the rotating shaft 6 are in interference fit, or the fan blade 2 is connected with the rotating shaft 6 through a matching structure of a connecting key and a key groove, so that the fan blade 2 is conveniently connected with the rotating shaft 6, and the fan blade 2 and the rotating shaft 6 are ensured to synchronously rotate.

In this embodiment, a plurality of arc protruding pieces 19 extend from the inner side surface of the inner core 12, the arc protruding pieces 19 are arranged around the mounting hole 15 in an annular array around the central axis of the inner core 12, and one end of the three-phase coreless coil winding 4 is sleeved outside the arc protruding pieces 19. One end of the three-phase coreless coil winding 4 is sleeved outside the arc lug 19, so that the three-phase coreless coil winding 4 is convenient to assemble, and the position precision and the stability of the three-phase coreless coil winding 4 in the sleeve 11 are improved.

In this embodiment, the insulating end cap 5 includes an end ring 51, a plurality of collets 52 connected to one end of the end ring 51, a plurality of snap claws 53 connected to the circumference of the end ring 51, and a plurality of stoppers 54 connected to the other end of the end ring 51, the plurality of collets 52 are sleeved outside the three-phase coreless coil winding 4, the plurality of snap claws 53 are all connected with the sleeve 11 in a snap-fit manner, the plurality of stoppers 54 all abut against the other end of the three-phase coreless coil winding 4, and the snap claws 53 are L-shaped.

Through a plurality of

buckle claws

53 and 11 buckle connections of sleeve, realize that insulating end cover 5 and shell 1 detachably are connected, the dismouting and the maintenance of insulating end cover 5 and shell 1 of being convenient for do not need extra assembly and disassembly tools can realize the dismouting of insulating end cover 5 and shell 1, have reduced the cost of dismouting and maintenance. The three-phase coreless coil winding 4 is uniformly sleeved with the plurality of the collets 52, and the plurality of the collets 52 clamp the three-phase coreless coil winding 4 tightly, so that the assembly is convenient, and the stability of the three-phase coreless coil winding 4 is ensured. And the three-phase coreless coil winding 4 arranged in the collet 52 is abutted and limited by the plurality of limiting blocks 54, so that the position precision of the three-phase coreless coil winding 4 in the sleeve 11 is improved, and the stability of the three-phase coreless coil winding 4 is further improved.

In this embodiment, the inner side surface of the inner core 12 is concavely provided with an insertion hole 121, and one end of the collet 52 away from the end ring 51 is provided with an insertion piece 55 inserted into the insertion hole 121. When the insulating end cover 5 is buckled on the sleeve 11, the plug-in piece 55 is inserted into the insertion hole 121 of the inner core 12, and the plug-in piece 55 is guided and limited through the insertion hole 121, so that the collet 52 can firmly clamp the three-phase coreless coil winding 4.

In order to further improve the stability of the three-phase coreless coil winding 4 in the insulating end cap 5, in this embodiment, a limiting piece 56 disposed opposite to one of the collet 52 is convexly disposed on the inner side of the limiting piece 54, one side of the limiting piece 56, the limiting piece 54 and the collet 52 are enclosed to form a limiting groove 57, the other end of the three-phase coreless coil winding 4 is inserted into the limiting groove 57, and a space is provided between the other side of the limiting piece 56 and the outer side wall of the magnetic ring 3.

In the embodiment, in order to ensure that the air gap density is large, the rotating gap is 0.5mm-0.8mm, when the rotating gap is too small, the magnetic ring 3 and the three-phase coreless coil winding 4 are easy to rub, and when the rotating gap is too large, the air gap density is small.

In this embodiment, install the second bearing between the spacing piece 56 of a plurality of stopper 54, the inner circle in the second bearing is inserted after magnetic ring 3 is run through to the one end (the tail end) of pivot 6, supports the one end of pivot 6 through the second bearing, has further improved the axiality of pivot 6, has still improved pivot 6 pivoted efficiency and stability.

Of course, the bearing 16 and the second bearing can be combined at will, so that the number of the two can also be increased or decreased according to actual requirements, such as: when the number of bearings 16 is two, the second bearing may not be mounted; when the number of bearings 16 is one, one second bearing may be installed.

In this embodiment, spacing piece 56's opposite side is provided with arc surface 58, arc surface 58's radian is the same with the lateral wall radian of second bearing, closely contradicts the lateral wall of second bearing through arc surface 58 to carry on spacingly to the second bearing, guaranteed the stability of second bearing.

In this embodiment, a fastening hole 111 is formed in the middle of the sleeve 11, a fastening block 59 fastened in the fastening hole 111 is disposed at one end of the fastening claw 53 away from the end ring 51, a positioning groove 112 is disposed at the air outlet end of the sleeve 11, and a positioning block 591 inserted in the positioning groove 112 is disposed at one end of the fastening claw 53 close to the end ring 51. This structural design, the insulating end cover 5 of being convenient for carries out the dismouting with sleeve 11, has improved the stability and the efficiency of insulating end cover 5 and the equipment of shell 1.

In this embodiment, the fastening block 59 is provided with a guide inclined surface 50, and the fastening block 59 can conveniently enter the fastening hole 111 by additionally arranging the guide inclined surface 50, so that the insulating end cover 5 can be conveniently disassembled and assembled.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a split type fan which characterized in that: the three-phase hollow cup coil winding comprises a shell, fan blades, a rotating shaft, a magnetic ring, a three-phase hollow cup coil winding and an insulating end cover, wherein the shell comprises a sleeve, an inner core which is arranged at an air inlet end of the sleeve and is coaxial with the sleeve, and a plurality of air deflectors which are connected between the inner wall of the sleeve and the outer wall of the inner core, the air deflectors are in an involute arc surface shape, the air deflectors are arranged in an annular array around the central axis of the inner core, the inner wall of the sleeve, the outer wall of the inner core and two adjacent air deflectors surround to form an air guide channel, a mounting hole is concavely arranged on the inner side surface of the inner core, a plurality of bearings which are arranged in a row are arranged in the mounting hole, a convex column is convexly arranged on the outer side surface of the inner core, the convex column is provided with a through hole which is communicated with the mounting hole, the inner core is provided, the magnetic ring is sleeved outside one end of the rotating shaft, the fan blade is sleeved outside the other end of the rotating shaft, the fan blade is positioned in the air inlet end of the sleeve, the protruding column is used for abutting against one side of the fan blade, the three-phase coreless coil winding is sleeved outside the magnetic ring, a rotating gap is formed between the inner wall of the three-phase coreless coil winding and the outer wall of the magnetic ring, and the insulating end cover is detachably arranged at the air outlet end of the sleeve and used for fixing the three-phase coreless coil winding in the sleeve.

2. The split blower of claim 1, wherein: the inner side surface of the inner core extends to form a plurality of arc lugs, the arc lugs are arranged around the mounting hole in an annular array mode around the central axis of the inner core, and one end of the three-phase coreless coil winding is sleeved outside the arc lugs.

3. The split blower of claim 1, wherein: the insulating end cover includes the end links, connects in a plurality of collets of the one end of end links, connects in a plurality of buckle claws of the circumference of end links and connects in a plurality of stoppers of the other end of end links, and outside three-phase coreless coil winding was located to a plurality of collets cover, a plurality of buckle claws all were connected with sleeve buckle, and a plurality of stoppers all contradict the other end of three-phase coreless coil winding.

4. The split blower of claim 3, wherein: the inner side surface of the inner core is concavely provided with a jack, and one end of the collet, which is far away from the end ring, is provided with an insert inserted into the jack.

5. The split blower of claim 3, wherein: the three-phase hollow cup coil winding is characterized in that a limiting piece opposite to one collet is convexly arranged on the inner side of the limiting piece, a limiting groove is formed by one side of the limiting piece, the limiting piece and the collet in an enclosing mode, the other end of the three-phase hollow cup coil winding is inserted into the limiting groove, and a space is formed between the other side of the limiting piece and the outer side wall of the magnetic ring.

6. The split blower of claim 5, wherein: a second bearing is arranged between the limiting pieces of the limiting blocks, and one end of the rotating shaft penetrates through the magnetic ring and then is inserted into the inner ring of the second bearing.

7. The split blower of claim 6, wherein: and an arc surface is arranged on the other side of the limiting piece, and the radian of the arc surface is the same as that of the second bearing.

8. The split blower of claim 3, wherein: the middle part of the sleeve is provided with a clamping hole, and one end of the clamping claw, which is far away from the end ring, is provided with a clamping block which is clamped in the clamping hole.

9. The split blower of claim 1, wherein: the rotating clearance is 0.5mm-0.8 mm.

10. The split blower of claim 3, wherein: the telescopic air-out end is provided with the constant head tank, and the buckle claw is provided with the locating piece of inserting locating in the constant head tank near the one end of end ring.