CN213928790U

CN213928790U - Split type fan

Info

Publication number: CN213928790U
Application number: CN202022148347.4U
Authority: CN
Inventors: 纪大山
Original assignee: Shaanxi Jiaward Intelligent Technology Co ltd
Current assignee: Shaanxi Jiaward Intelligent Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-08-10
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to the technical field of fans, in particular to a split type fan, which comprises an insulating shell, fan blades, a rotating shaft and a magnetic ring, coreless coil winding and insulating end cover, insulating casing includes the sleeve, inner core and a plurality of aviation baffle, the sleeve, the wind channel is enclosed to establish into with two adjacent aviation baffles to the inner core, the middle part of inner core is equipped with the mounting hole, be equipped with the bearing in the mounting hole, the inner circle of bearing is located in the pivot and runs through the bearing, the magnetic ring is adorned outside the one end of pivot, the fan blade suit is outside the other end of pivot, the fan blade is located telescopic air inlet end and sets up in one side of inner core, the coreless coil winding cover is located outside the magnetic ring, be provided with the running clearance between the inner wall of coreless coil winding and the outer wall of magnetic ring, the opposite side and the coreless coil winding of inner core are contradicted, insulating end cover detachably installs in telescopic air-out end and is used for being fixed in the sleeve with coreless coil winding. The utility model discloses an insulating nature is good, long service life, and the dismouting is convenient, and the radiating effect is good.

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 shell of current split type fan most adopts metal material to make, avoids shell and coil winding to appear the problem of short circuit or electric leakage, generally need set up insulation system in the inside of current split type fan for the inner structure of fan is complicated, and the dismouting is inconvenient with the maintenance, and makes the volume of fan great. 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 an insulating nature is good, and the heat dissipation is fast, long service life, the convenient split type fan of dismouting.

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

a split type fan comprises an insulating shell, fan blades, a rotating shaft, a magnetic ring, a hollow cup coil winding and an insulating end cover, wherein the insulating shell comprises a sleeve, an inner core which is arranged in an air inlet end of the sleeve and is coaxial with the sleeve, and a plurality of air deflectors which are connected with the inner wall of the sleeve and the outer wall of the inner core, 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 in the middle of the inner core, a bearing is arranged in the mounting hole, the rotating shaft is arranged in an inner ring of the bearing and penetrates through the bearing, the magnetic ring is sleeved outside one end of the rotating shaft, the fan blades are sleeved outside the other end of the rotating shaft, the fan blades are positioned in the air inlet end of the sleeve and are arranged on one side of the inner core, the hollow cup coil winding is sleeved outside the magnetic ring, and a rotating gap is arranged between the inner wall of the hollow cup coil winding and the outer wall of the magnetic ring, the opposite side and the conflict of coreless coil winding of inner core, insulating end cover detachably install in telescopic air-out end and be used for being fixed in the sleeve with coreless coil winding.

Furthermore, the insulating shell is a high-temperature-resistant plastic shell.

Furthermore, one side of the inner core, which is close to the coreless coil winding, is provided with a plurality of abutting blocks for abutting against the coreless coil winding.

Further, the quantity of mounting hole is two, and two mounting holes are established from the both ends face of inner core inwards concave respectively and are formed, are provided with the spacing arch that is used for conflicting the bearing between two mounting holes.

Further, the inner core is provided with a plurality of louvres, and a plurality of louvres set up in the circumference of mounting hole around the central axis of inner core, and the louvre sets up along the length direction of inner core.

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 the coreless coil winding was located to a plurality of collets cover, a plurality of buckle claws all were connected with the sleeve buckle, and a plurality of stoppers all contradict the other end of coreless coil winding.

Furthermore, the inner end face of the inner core is concavely provided with a jack, and one end, far away from the end ring, of the collet 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 the collet, one side of the limiting piece, the limiting block and the collet are enclosed to form a limiting groove, one end of the coil winding of the hollow cup 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.

Further, a clamping hole is formed in the middle of the sleeve, a positioning groove is formed in the air outlet end of the sleeve, a clamping block clamped in the clamping hole is arranged at one end, away from the end ring, of the clamping claw, and a positioning block inserted into the positioning groove is arranged at one end, close to the end ring, of the clamping claw.

The utility model has the advantages that: during actual work, the produced air current of fan blade rotation partly dispels the heat to the bearing via the mounting hole, the air current of another part blows off via a plurality of wind-guiding ways, blow off the outer in-process of sleeve at this part air current, this part air current not only can directly blow off the sleeve, still can spread to the clearance of rotating and blow off via the clearance of rotating in, be favorable to dispelling the heat to the inside spare part of fan, the radiating effect is good, the life of fan has been prolonged, and this fan adopts split type structure, be convenient for carry out dismouting and maintenance to the fan. This fan adopts insulating casing, compares in current fan adoption metal casing for the inside of fan need not set up insulation system or has saved insulating part, thereby makes the simple structure and the compactness of fan, and the component part is few. Insulating casing can prevent that the problem of short circuit or electric leakage from appearing in the fan, and the security performance is good, guarantees that the fan can normally work. 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, job stabilization, and the air current flow resistance is little, and the air output is big, and insulating nature is good, and air gap density is big, and fan efficiency is high, 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 insulating housing of the present invention.

Description of reference numerals:

1. an insulating housing; 11. a sleeve; 111. a snap-in hole; 112. positioning a groove; 12. an inner core; 13. an air deflector; 14. an air guide duct; 15. mounting holes; 16. a limiting bulge; 17. heat dissipation holes; 19. a jack; 2. a fan blade; 3. a bearing; 4. a magnetic ring; 5. a contact block; 6. a coreless coil winding; 7. an insulating end cap; 71. an end ring; 72. a collet; 73. a snap-fit claw; 74. a limiting block; 75. a plug-in; 76. a limiting sheet; 77. a limiting groove; 78. a buckling block; 79. positioning blocks; 8. 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 an insulating housing 1, a fan blade 2, a rotating shaft 8, a magnetic ring 4, a coreless coil winding 6 and an insulating end cover 7, wherein the insulating housing 1 comprises a sleeve 11, an inner core 12 arranged in an air inlet end of the sleeve 11 and coaxially arranged with the sleeve 11, and a plurality of air deflectors 13 connected to an inner wall of the sleeve 11 and an outer wall of the inner core 12, the plurality of 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 in the middle of the inner core 12, a bearing 3 is arranged in the mounting hole 15, the rotating shaft 8 is arranged in the bearing 3 and penetrates through the bearing 3, the magnetic ring 4 is sleeved outside one end (tail end) of the rotating shaft 8, the fan blade 2 is sleeved outside the other end (head end) of the rotating shaft 8, the fan blade 2 is positioned in the air inlet end of the sleeve 11 and arranged on one side of the inner core 12, the coreless coil winding 6 is sleeved outside the magnetic ring 4, a rotating gap is formed between the inner wall of the coreless coil winding 6 and the outer wall of the magnetic ring 4, the other side of the inner core 12 is abutted against the coreless coil winding 6, the insulating end cover 7 is detachably arranged at the air outlet end of the sleeve 11 and used for fixing the coreless coil winding 6 in the sleeve 11, the insulating shell 1 is of an integrated structure, the outer end face of the fan blade 2 is flush with the air inlet end face of the sleeve 11, and the fan blade 2 is positioned in the sleeve 11, so that the fan is compact in structure and good in safety performance; the coreless coil winding 6 is a three-phase coreless coil winding.

During actual work, fan blade 2 rotates produced air current partly via mounting hole 15 and dispels the heat to bearing 3, the air current of another part blows off via a plurality of wind channels 14, blow off the outer in-process of sleeve 11 at this part air current, this part air current not only can directly blow off sleeve 11, still can spread to the clearance of rotating and blow off via the clearance of rotating, be favorable to dispelling the heat to the inside spare part of fan, the radiating effect is good, the life of fan has been prolonged, and this fan adopts split type structure, be convenient for carry out dismouting and maintenance to the fan. This fan adopts insulating casing 1, adopts metal casing in comparison with current fan for the inside of fan need not set up insulation system or has saved insulating part, thereby makes the simple structure and the compactness of fan, and the component part is few. Insulating casing 1 can prevent that the problem of short circuit or electric leakage from appearing in the fan, and the security performance is good, guarantees that the fan can normally work. 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, job stabilization, and the air current flow resistance is little, and the air output is big, and insulating nature is good, and air gap density is big, and fan efficiency is high, long service life.

Specifically, the fan blade 2 and the rotating shaft 8 are in interference fit, or the fan blade 2 is connected with the rotating shaft 8 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 8, and the fan blade 2 and the rotating shaft 8 are ensured to synchronously rotate.

In this embodiment, the insulating housing 1 is a high temperature resistant plastic housing, and the insulating housing 1 of this structure has the characteristics of high temperature resistance and light weight.

In this embodiment, a plurality of contact blocks 5 for contacting with one end of the coreless coil winding 6 are disposed on one side of the inner core 12 close to the coreless coil winding 6. Specifically, a plurality of contact blocks 5 are arranged in an annular array around the central axis of the rotating shaft 8; through addding the contact piece 5 for the location of coreless coil winding 6 and inner core 12 has reduced the area of contact between coreless coil winding 6 and the inner core 12 simultaneously, and the contact piece 5 plays spaced effect, makes to have the heat dissipation clearance between coreless coil winding 6 and the inner core 12. The heat dissipation clearance makes the circulation of the inside air current of fan good, has further improved radiating effect.

In this embodiment, the number of the mounting holes 15 and the number of the bearings 3 are two, the two mounting holes 15 are respectively formed by concavely arranging the two ends of the inner core 12 toward the middle of the inner core 12, a limiting protrusion 16 is arranged between the two mounting holes 15, the two bearings 3 are respectively arranged in the two mounting holes 15, the two ends of the limiting protrusion 16 are respectively abutted against the two bearings 3, and the depth of the mounting holes 15 is not less than the thickness of the bearings 3. The inner wall of the mounting hole 15 is abutted against the outer ring of the bearing 3, and the limiting bulge 16 limits the bearing 3, so that the bearing 3 is convenient to mount, and the stability of the bearing 3 mounted on the inner core 12 is improved; the pivot 8 runs through two bearings 3, and the both ends of pivot 8 are the cantilever setting, supports pivot 8 through two bearings 3, and can guarantee pivot 8 and sleeve 11's axiality well, has improved pivot 8 pivoted stability and efficiency.

In this embodiment, the inner core 12 is provided with a plurality of heat dissipation holes 17, the heat dissipation gap is communicated with the heat dissipation holes 17, the plurality of heat dissipation holes 17 are arranged in the circumferential direction of the mounting hole 15 around the central axis of the inner core 12 and are communicated with the mounting hole 15, and the heat dissipation holes 17 are arranged along the length direction of the inner core 12 and penetrate through the inner core 12. The heat inside the fan is dissipated by additionally arranging a plurality of heat dissipation holes 17; during actual work, the fan blade 2 rotates produced air current partly via mounting hole 15, a plurality of louvre 17 and dispels the heat to inner core 12, bearing 3, pivot 8, magnetic ring 4 and coreless coil winding 6, is favorable to dispelling the heat to the inside spare part of fan more, and the radiating effect is good, can prolong the life of fan.

In this embodiment, the insulating end cap 7 includes an end ring 71, a plurality of collets 72 connected to one end of the end ring 71, a plurality of snap claws 73 connected to the circumference of the end ring 71, and a plurality of stoppers 74 connected to the other end of the end ring 71, the plurality of collets 72 are sleeved outside the coreless coil winding 6, the plurality of snap claws 73 are all connected to the sleeve 11 in a snap-fit manner, the plurality of stoppers 74 all abut against the other end of the coreless coil winding 6, and the snap claws 73 are L-shaped. Through a plurality of buckle claws 73 and sleeve 11 buckle connection, realize that insulating end cover 7 and insulating casing 1 detachably connect, the dismouting and the maintenance of insulating end cover 7 and insulating casing 1 of being convenient for do not need extra assembly and disassembly tools can realize the dismouting of insulating end cover 7 and insulating casing 1, have reduced the cost of dismouting and maintenance. The coreless coil winding 6 is uniformly sleeved with the plurality of the collets 72, and the coreless coil winding 6 is clamped tightly by the plurality of the collets 72, so that the assembly is convenient, and the stability of the coreless coil winding 6 is ensured. And the coreless coil winding 6 arranged in the collet 72 is limited by the plurality of limiting blocks 74, so that the position precision of the coreless coil winding 6 is improved, and the stability of the coreless coil winding 6 is further improved.

In this embodiment, the inner end surface of the inner core 12 is concavely provided with a jack 19, and one end of the collet 72 away from the end ring 71 is provided with an insert 75 inserted into the jack 19. While the insulating end cap 7 is fastened to the sleeve 11, the insert 75 is inserted into the insertion hole 19 of the inner core 12, and the insert 75 is guided and limited by the insertion hole 19, so that the collet 72 can firmly clamp the coreless coil winding 6.

In order to further improve the stability of the coreless coil winding 6 in the insulating end cover 7, specifically, a limiting piece 76 arranged opposite to one collet 72 is convexly arranged on the inner side of the limiting piece 74, a limiting groove 77 is defined by one side of the limiting piece 76, the limiting piece 74 and the collet 72, the other end of the coreless coil winding 6 is inserted into the limiting groove 77, and a space is formed between the other side of the limiting piece 76 and the outer side wall of the magnetic ring 4.

Specifically, 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 4 and the coreless coil winding 6 are easy to rub, and when the rotating gap is too large, the air gap density is small; a second bearing is arranged between the limiting pieces 76 of the limiting blocks 74, one end (tail end) of the rotating shaft 8 penetrates through the magnetic ring 4 and then is inserted into the inner ring of the second bearing, and one end of the rotating shaft 8 is supported by the second bearing, so that the coaxiality of the rotating shaft 8 is further improved, and the rotating efficiency of the rotating shaft 8 is also improved.

Of course, the bearing 3 and the second bearing can be combined and used at will, and the number of the two bearings can be increased or decreased according to actual requirements, such as: when the number of the bearings 3 is two, the second bearing may not be mounted; when the number of the bearings 3 is one, one second bearing may be installed.

Specifically, the opposite side of spacing piece 76 is provided with the arc surface the same with the lateral wall radian of second bearing, closely contradicts the lateral wall of second bearing through the arc surface to spacing 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 positioning groove 112 is formed in the air outlet end of the sleeve 11, a fastening block 78 fastened in the fastening hole 111 is arranged at one end of the fastening claw 73 far away from the end ring 71, and a positioning block 79 inserted into the positioning groove 112 is arranged at one end of the fastening claw 73 close to the end ring 71. This structural design, the insulating end cover 7 of being convenient for carries out the dismouting with sleeve 11, has improved the stability and the efficiency of insulating end cover 7 and insulating casing 1 equipment.

Specifically, 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.

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 wind-guiding type air-conditioner comprises an insulating shell, fan blades, a rotating shaft, a magnetic ring, a hollow cup coil winding and an insulating end cover, wherein the insulating shell comprises a sleeve, an inner core which is arranged in an air inlet end of the sleeve and is coaxial with the sleeve, and a plurality of air guide plates which are connected with the inner wall of the sleeve and the outer wall of the inner core, the plurality of air guide plates 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 guide plates enclose an air guide channel, a mounting hole is concavely arranged in the middle of the inner core, a bearing is arranged in the mounting hole, the rotating shaft is arranged in an inner ring of the bearing and penetrates through the bearing, the magnetic ring is sleeved outside one end of the rotating shaft, the fan blades are sleeved outside the other end of the rotating shaft, the fan blades are positioned in the air inlet end of the sleeve and are arranged on one side of the inner core, the hollow cup coil winding is sleeved outside the magnetic ring, a rotating gap is arranged between the inner wall of the hollow cup coil winding and the other side of the hollow cup winding, the insulating end cover is detachably arranged at the air outlet end of the sleeve and is used for fixing the coreless coil winding in the sleeve;

a plurality of contact blocks used for being in contact with the coreless coil winding are arranged on one side, close to the coreless coil winding, of the inner core;

the quantity of mounting hole is two, and two mounting holes are established from the both ends face of inner core inwards concavely respectively and are formed, are provided with the spacing arch that is used for conflicting the bearing between two mounting holes.

2. The split blower of claim 1, wherein: the insulating shell is a high-temperature-resistant plastic shell.

3. The split blower of claim 1, wherein: the inner core is provided with a plurality of louvres, and a plurality of louvres set up in the circumference of mounting hole around the central axis of inner core, and the louvre sets up along the length direction of inner core.

4. 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 the 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 coreless coil winding.

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

6. The split blower of claim 4, wherein: the inner side of the limiting block is convexly provided with a limiting piece which is arranged opposite to the collet, one side of the limiting piece, the limiting block and the collet are enclosed to form a limiting groove, one end of the 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.

7. The split blower of claim 6, 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.

8. The split blower of claim 4, wherein: the telescopic middle part is provided with the buckle hole, telescopic air-out end is provided with the constant head tank, the one end that the buckle claw kept away from the end links is provided with the buckle piece of buckle in the buckle hole, and the buckle claw is close to the one end of near the end links and is provided with the locating piece of inserting and locating in the constant head tank.