CN212660018U

CN212660018U - Split type fan

Info

Publication number: CN212660018U
Application number: CN202021759343.3U
Authority: CN
Inventors: 纪大山
Original assignee: Shaanxi Jiaward Intelligent Technology Co ltd
Current assignee: Jiawode Foshan Technology Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-03-05
Anticipated expiration: 2030-08-20

Abstract

The utility model belongs to the technical field of the fan technique and specifically relates to indicate a split type fan, including metal casing, the fan blade, the apparatus further comprises a rotating shaft, the magnetic ring, insulating part and coil pack, metal casing includes the sleeve, the inner core, a plurality of aviation baffles and a plurality of jack catch, the sleeve, the inner core encloses with two adjacent aviation baffles and establishes into the wind-guiding way, the inner core is equipped with the mounting hole, the bearing is equipped with to the mounting hole, the magnetic ring suit is outside the one end of pivot, the fan blade suit is outside the other end of pivot, the coil former sets up in the sleeve, a plurality of jack catch cooperations are in order to be with the coil pack chucking, the magnetic ring is located outside the magnetic ring to the coil pack cover, rotating. The utility model discloses the connection structure of coil pack and metal casing has been simplified for metal casing's simple structure has reduced the windage, has increased the amount of wind, has reduced manufacturing cost, coil pack and metal casing's easy dismounting, and the radiating effect is good, job stabilization, and intensity, hardness are high, 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 a stator, a rotor, fan blades and a shell. There are two main types of fans in the prior art: one is an integrated fan, and the other is a split fan. In order to avoid the problem of short circuit or electric leakage between the shell and the coil winding, the existing split type fan adopts a plastic shell, but the strength of the fan is insufficient, the fan is easy to damage or deform irreversibly when being heated, and the service life is short; or the inside design of fan has insulation system, but this insulation system's structure 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 a simple structure, easy dismounting, the windage is little, the split type fan that the amount of wind is big.

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

a split type fan comprises a metal shell, blades, a rotating shaft, a magnetic ring, an insulating part and a coil assembly, wherein the metal shell comprises a sleeve, an inner core which is arranged in an air inlet end of the sleeve and is coaxial with the sleeve, a plurality of air deflectors which are connected with the inner wall of the sleeve and the outer wall of the inner core, and a plurality of clamping jaws which are connected with the inner core, the plurality of clamping jaws are all arranged in the sleeve, the plurality of 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 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 blades are sleeved outside the other end of the rotating shaft, the blades are arranged, the coil assembly is positioned in the sleeve and at the air outlet end of the sleeve, the coil assembly is sleeved outside the magnetic ring, a rotating gap is formed between the inner wall of the coil assembly and the outer wall of the magnetic ring, and the insulating part is arranged between the inner core and the coil assembly.

Furthermore, the coil assembly comprises a hollow cup coil winding and a coil frame, the hollow cup coil winding is arranged in the coil frame, the rotating gap is located between the hollow cup coil winding and the magnetic ring, and the coil frame is clamped by the clamping jaws in a matching mode.

Furthermore, the coil frame comprises an end ring, a plurality of collets connected to one end of the end ring and a plurality of limiting blocks connected to the other end of the end ring, the plurality of collets are sleeved outside the coreless coil winding, the plurality of limiting blocks all abut against one end of the coreless coil winding, the other end of the coreless coil winding abuts against the insulating part, and the end ring is clamped tightly by the plurality of clamping claws.

Furthermore, a positioning block is arranged at the free end of the collet, a positioning groove is concavely arranged on one side, away from the fan blade, of the inner core, and the positioning block is inserted into the positioning groove.

Furthermore, the jack catch is including connecting in the shell fragment of inner core and connecting in the fixture block of the free end of shell fragment, the fixture block is the contained angle setting with the shell fragment, the medial surface of fixture block is contradicted with the lateral surface of end ring.

Furthermore, the inner side of each limiting block is convexly provided with a limiting piece which is arranged opposite to the collet, the limiting pieces, the limiting blocks and the collet are enclosed to form a limiting groove, and one end of the coil winding of the hollow cup is contained in the limiting groove.

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.

Furthermore, the inner end face of the inner core is concavely provided with a positioning cavity communicated with the mounting hole, and the insulating part is accommodated in the positioning cavity.

Furthermore, bearings are detachably connected between the limiting pieces of the limiting blocks.

Furthermore, the inner side wall of the collet is convexly provided with a convex strip used for abutting against the coil winding of the hollow cup.

The utility model has the advantages that: the utility model has the advantages of simple and compact structure, simplified coil pack and metal casing's connection structure for metal casing's simple structure has reduced the windage, has increased the amount of wind, has reduced manufacturing cost, coil pack and metal casing's easy dismounting, and the radiating effect is good, job stabilization, and intensity, hardness height, 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 metal shell of the present invention.

Fig. 5 is a schematic perspective view of the coil bobbin of the present invention.

Description of reference numerals:

1. a metal housing; 11. a sleeve; 12. an inner core; 13. an air deflector; 14. a claw; 141. a spring plate; 142. a clamping block; 15. an air guide duct; 16. mounting holes; 17. a bearing; 18. positioning a groove; 19. a limiting bulge; 2. a fan blade; 3. a rotating shaft; 4. a magnetic ring; 5. an insulating member; 6. a coreless coil winding; 7. a bobbin; 71. an end ring; 72. a collet; 73. a limiting block; 74. positioning blocks; 75. a limiting sheet; 76. a limiting groove; 77. a convex strip; 8. a positioning cavity; 9. and (4) heat dissipation holes.

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 5, the utility model provides a split type fan, which comprises a metal casing 1, a fan blade 2, a rotating shaft 3, a magnetic ring 4, an insulating member 5 and a coil assembly, the coil assembly comprises a coreless coil winding 6 and a coil frame 7, the coreless coil winding 6 is installed in the coil frame 7, the metal casing 1 comprises a sleeve 11, an inner core 12 which is arranged in an air inlet end of the sleeve 11 and is coaxial with the sleeve 11, a plurality of air deflectors 13 which are connected with an inner wall of the sleeve 11 and an outer wall of the inner core 12, and a plurality of claws 14 which are connected with the inner core 12, the claws 14 are all arranged in the sleeve 11 and are positioned at an air outlet end, the plurality of air deflectors 13 are arranged in an annular array around a central axis of the inner core 12, the coil assembly is arranged in the sleeve 11, the inner wall of the sleeve 11, the outer wall of the inner core 12 and two adjacent air deflectors 13 enclose an air guide duct 15, a, the bearing 17 is arranged in the mounting hole 16, the rotating shaft 3 is arranged on the inner ring of the bearing 17 and penetrates through the bearing 17, the magnetic ring 4 is sleeved outside one end of the rotating shaft 3, the fan blade 2 is sleeved outside the other end of the rotating shaft 3, the fan blade 2 is positioned in the air inlet end of the sleeve 11 and is arranged on one side of the inner core 12, the plurality of claws 14 are all positioned on the other side of the inner core 12, the coil rack 7 is arranged at the air outlet end of the sleeve 11 and extends into the sleeve 11, the plurality of claws 14 are matched to tightly clamp the coil rack 7 of the coil component, the hollow cup coil winding 6 of the coil component is sleeved outside the magnetic ring 4, a rotating gap is arranged between the inner wall, the rotating gap is located between the coreless coil winding 6 and the magnetic ring 4, the insulating part 5 is arranged between the inner core 12 and the coreless coil winding 6 of the coil assembly, and the plurality of claws 14 are arranged in an annular array around the central axis of the inner core 12.

In actual work, one part of air flow generated by rotation of the fan blade 2 is blown out of the bearing 17 through the mounting hole 16, the other part of air flow is blown out through the plurality of air guide channels 15, in the process that the part of air flow is blown out of the sleeve 11, the part of air flow can not only be directly blown out of the sleeve 11, but also be diffused into the rotating gap and blown out through the rotating gap, so that the heat dissipation of internal parts of the fan is facilitated, the heat dissipation effect is good, the service life of the fan is prolonged, the hollow cup coil winding 6 is arranged in the coil rack 7, the coil rack 7 is tightly clamped through the plurality of clamping claws 14 of the metal shell 1, the coil rack 7 can be firmly arranged in the sleeve 11, the connecting structure of the coil rack 7 and the metal shell 1 is simplified, the wind resistance is reduced, the wind volume is increased, the production cost is reduced, the hollow cup coil winding 6, the coil rack 7, this fan adopts split type structure, is convenient for carry out dismouting and maintenance to the fan. The metal shell 1 is adopted, so that the strength and the hardness of the fan are high, the fan is easy to damage or is easy to generate unrecoverable deformation when being heated compared with a plastic shell, and the service life of the fan is prolonged. Insulating metal casing 1 and coreless coil winding 6 through insulating part 5, prevent that the problem of short circuit or electric leakage from appearing in the fan, the security performance is good, guarantees that the fan can normally work.

The utility model has the advantages of simple and compact structure, metal casing 1's simple structure has simplified coil former 7 and metal casing 1's connection structure, has reduced the windage, has increased the amount of wind, has reduced manufacturing cost, and the easy dismounting of coreless coil winding 6, coil former 7 and metal casing 1, the radiating effect is good, job stabilization, and intensity, hardness are high, long service life.

In this embodiment, the coil bobbin 7 includes an end ring 71, a plurality of claws 72 connected to one end of the end ring 71, and a plurality of stoppers 73 connected to the other end of the end ring 71, the plurality of claws 72 are sleeved outside the coreless coil winding 6, the plurality of stoppers 73 all abut against one end of the coreless coil winding 6, the other end of the coreless coil winding 6 abuts against the insulating member 5, the end ring 71 is clamped by the plurality of claws 14, a positioning block 74 is disposed at a free end of the claw 72, a positioning groove 18 is concavely disposed on one side of the inner core 12 away from the fan blade 2, the positioning block 74 is inserted into the positioning groove 18, and the coreless coil winding 6 is a three-phase coil winding.

During assembly, the coreless coil winding 6 is firstly arranged in the plurality of the collet jaws 72 of the coil frame 7, so that the outer side wall of the coreless coil winding 6 is abutted against the inner side surfaces of the plurality of the collet jaws 72, one end of the coreless coil winding 6 is abutted against the limiting block 73, the plurality of the collet jaws 72 clamp the coreless coil winding 6, then the coil frame 7 with the coreless coil winding 6 is inserted into an installation space surrounded by the plurality of the clamping jaws 14 until the positioning block 74 on the collet jaws 72 is inserted into the positioning groove 18 of the inner core 12, the other end of the coreless coil winding 6 is abutted against the insulating member 5, the free ends of the plurality of the clamping jaws 14 clamp the end ring 71, thereby completing the assembly of the coreless coil winding 6, the coil frame 7 and the metal shell 1, the coil frame 7 is firmly connected with the metal shell 1, because the insulating member 5 and the limiting block 73 respectively limit the two ends of the coreless coil winding 6, the stability of the coreless coil winding 6 in the coil frame 7 is ensured, the structural stability is good, and the disassembly and the assembly are convenient.

In this embodiment, the claw 14 includes a spring 141 connected to the inner core 12 and a fixture block 142 connected to a free end of the spring 141, the fixture block 142 and the spring 141 are disposed at an included angle, an inner side surface of the fixture block 142 abuts against an outer side surface of the end ring 71, and the claw 14 and the inner core 12 are integrally formed. Since the elastic pieces 141 of the jaws 14 have a certain elasticity, when the bobbin 7 is assembled in the plurality of jaws 14, all the jaws 14 are pressed to be expanded outward from each other, which facilitates the assembly of the bobbin 7 in the installation space, and when the bobbin 7 is installed in place, all the jaws 14 are drawn close to each other to clamp the end ring 71 by the resilient force until the clamping blocks 142 of the jaws 14 clamp the end ring 71 of the bobbin 7.

In order to further improve the stability of the coreless coil winding 6 in the bobbin 7 and facilitate the assembly of the coreless coil winding 6 in the bobbin 7, in this embodiment, a limiting piece 75 is convexly disposed on the inner side of each limiting piece 73 and is opposite to the collet 72, the limiting piece 75, the limiting piece 73, and the collet 72 are enclosed to form a limiting groove 76, and one end of the coreless coil winding 6 is accommodated in the limiting groove 76.

In this embodiment, the number of the mounting holes 16 is two, the two mounting holes 16 are respectively formed by inward concave from two end surfaces of the inner core 12, a limiting protrusion 19 for abutting against the bearing 17 is arranged between the two mounting holes 16, the hole depth of each mounting hole 16 is not less than the thickness of the bearing 17, at least one bearing 17 is arranged in each mounting hole 16, and the limiting protrusion 19 is used for limiting the bearing 17, so that the mounting stability of the bearing 17 is improved; by increasing or decreasing the number of bearings 17, the rotational stability of the shaft 3 is improved.

Specifically, the inner core 12 is provided with a plurality of heat dissipation holes 9, the plurality of heat dissipation holes 9 are arranged in the circumferential direction of the mounting hole 16 around the central axis of the inner core 12 and are communicated with the mounting hole 16, and the heat dissipation holes 9 are arranged along the length direction of the inner core 12. The heat inside the fan is dissipated by additionally arranging a plurality of heat dissipation holes 9.

In this embodiment, the inner end surface of the inner core 12 is concavely provided with a positioning cavity 8 communicated with the mounting hole 16, and the insulating member 5 is accommodated in the positioning cavity 8. The insulating part 5 is positioned through the positioning cavity 8, so that the insulating part 5 is convenient to mount on one hand, and the stability of the insulating part 5 is ensured on the other hand.

In this embodiment, detachably be connected with bearing 17 between the spacing piece 75 of a plurality of stopper 73, the one end cartridge that fan blade 2 was kept away from to pivot 3 is in the inner circle of this bearing 17, supports pivot 3 through this bearing 17, has improved pivot 3's axiality and pivoted stability.

In the embodiment, the metal shell 1 is a zinc alloy shell or a zinc-aluminum alloy shell, and the metal shell 1 with the structure has the characteristic of electromagnetic interference resistance, so that the phenomenon of magnetic flux leakage is prevented; the coil rack 7 is an insulating rack, so that the phenomenon of electric leakage is prevented, and the use safety performance is improved.

In this embodiment, 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 resistance of the airflow is reduced, noise is reduced, and air volume and air pressure generated by the fan are improved.

In this embodiment, a protruding strip 77 for abutting against the coreless coil winding 6 is protruded from an inner sidewall of the collet 72. When the coreless coil winding 6 is installed in the plurality of collets 72, the raised strips 77 abut against the outer side wall of the coreless coil winding 6, so that the contact area between the inner side wall of the collets 72 and the outer side wall of the coreless coil winding 6 is reduced, and thus the abrasion is reduced; preferably, the protruding strip 77 is a rubber member, and the rubber member has a certain elasticity, and the rubber member plays a role of buffering and protecting the coreless coil winding 6 and can prevent the coreless coil winding 6 from being easily separated from the coil frame 7.

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 power generator comprises a metal shell, blades, a rotating shaft, a magnetic ring, an insulating part and a coil assembly, wherein the metal shell comprises a sleeve, an inner core which is arranged in an air inlet end of the sleeve and is coaxial with the sleeve, a plurality of air deflectors which are connected with the inner wall of the sleeve and the outer wall of the inner core and a plurality of clamping jaws which are connected with the inner core, the plurality of clamping jaws are all arranged in the sleeve, the plurality of 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 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 blades are sleeved outside the other end of the rotating shaft, the coil assembly is positioned in the sleeve and at the air outlet end of the sleeve, the coil assembly is sleeved outside the magnetic ring, a rotating gap is formed between the inner wall of the coil assembly and the outer wall of the magnetic ring, and the insulating part is arranged between the inner core and the coil assembly.

2. The split blower of claim 1, wherein: the coil assembly comprises a hollow cup coil winding and a coil frame, the hollow cup coil winding is arranged in the coil frame, a rotating gap is arranged between the hollow cup coil winding and the magnetic ring, and the coil frame is clamped by the clamping jaws in a matching mode.

3. The split blower of claim 2, wherein: the coil former includes the end ring, connects in a plurality of collets of the one end 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 stoppers all contradict the one end of coreless coil winding, and the other end of coreless coil winding contradicts the insulating part, and a plurality of jack catchs the end ring and presss from both sides tightly.

4. The split blower of claim 3, wherein: the free end of the collet is provided with a positioning block, one side of the inner core, which is far away from the fan blade, is concavely provided with a positioning groove, and the positioning block is inserted in the positioning groove.

5. The split blower of claim 3, wherein: the jack catch is including connecting in the shell fragment of inner core and connecting in the fixture block of the free end of shell fragment, the fixture block is the contained angle setting with the shell fragment, the medial surface of fixture block is contradicted with the lateral surface of end ring.

6. The split blower of claim 3, wherein: the inner side of each limiting block is convexly provided with a limiting piece which is arranged opposite to the collet, the limiting pieces, the limiting blocks and the collet are enclosed to form a limiting groove, and one end of the coreless coil winding is contained in the limiting groove.

7. The split blower of claim 1, wherein: 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.

8. The split blower of claim 1, wherein: the inner end face of the inner core is concavely provided with a positioning cavity communicated with the mounting hole, and the insulating part is accommodated in the positioning cavity.

9. The split blower of claim 6, wherein: the bearings are detachably connected between the limiting pieces of the limiting blocks.

10. The split blower of claim 3, wherein: the inner side wall of the collet is convexly provided with a raised line which is used for abutting against the coil winding of the hollow cup.