CN209982242U

CN209982242U - Shaded pole asynchronous motor

Info

Publication number: CN209982242U
Application number: CN201920795744.5U
Authority: CN
Inventors: 曹柯锋
Original assignee: Hangzhou Fengyin Motor Manufacturing Co Ltd
Current assignee: Hangzhou Fengyin Motor Manufacturing Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-01-21
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a shaded pole asynchronous motor, which comprises a shell, wherein a fixed groove is arranged on the side wall of the shell, a stator assembly is arranged in the fixed groove, a rotor assembly is arranged in the stator assembly, a rotating shaft is fixedly arranged at the center of the rotor assembly, one end of the shell is provided with a rear end cover, a spacing block is arranged in the rear end cover, a heat dissipation cavity is arranged between the spacing block and the bottom surface of the rear end cover, a second bearing is fixedly arranged on the bottom surface of the rear end cover, the rotating shaft is fixedly connected with the inner wall of the second bearing, a fan blade is sleeved at one end of the rotating shaft close to the second bearing, the fan blade is positioned in the heat dissipation cavity, a plurality of heat dissipation holes are respectively arranged on the bottom surfaces of the spacing block and the rear end cover, the rotor assembly and the stator assembly are cooled, so that the rotor assembly and the stator assembly can continuously work for a long time.

Description

Shaded pole asynchronous motor

Technical Field

The utility model relates to an electrical equipment technical field, in particular to shaded pole asynchronous machine.

Background

The shaded-pole single-phase asynchronous motor is a single-phase asynchronous motor which utilizes a short-circuit winding sleeved on a part of magnetic poles to generate a rotating magnetic field and starting torque, generally, the shaded-pole motor only has a main winding and does not have a starting winding, and a cage-shaped chute cast aluminum rotor is generally adopted and is divided into a salient-pole shaded-pole motor and a non-salient-pole shaded-pole motor according to the different appearance structures of stators.

The shaded pole type single-phase asynchronous motor is a simpler one of single-phase alternating current motors, and has the advantages of simple structure, low manufacturing cost, low running noise and the like, and is widely applied to small household appliances such as electric fans, hair dryers, dust collectors and the like, but the shaded pole type motor has lower working efficiency, particularly under severe closed environments, the heat dissipation performance of the shaded pole type motor is poor, and under the condition of long-time continuous working, higher temperature can be generated inside the motor, so that the motor is easy to have some problems and cannot be used for a long time. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shaded pole asynchronous machine has when the motor uses, can make the inside production air flow of shell to make the circulation of air and the external air in the shell, thereby cool down to the shell is inside, make the advantage that the motor can the continuous operation.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a shaded pole asynchronous motor comprises a shell, wherein a fixed groove is formed in the side wall of the shell, a stator assembly is arranged in the fixed groove, the side wall of the stator assembly is clamped in the fixed groove and matched with the fixed groove, a rotor assembly is arranged in the stator assembly, a rotating shaft is fixedly arranged at the center of the rotor assembly, the rotor assembly is sleeved on the rotating shaft, a front end cover is arranged at one end of the shell, a first rotating hole is formed in the center of the front end cover, a first bearing is arranged in the first rotating hole, the outer wall of the first bearing is fixedly connected with the side wall of the first rotating hole, one end of the rotating shaft penetrates through the first bearing and is fixedly connected with the inner wall of the first bearing, a rear end cover is arranged at one end of the shell, which is far away from the front end cover, a spacer is arranged in the rear end cover, the side wall of the, the rear end cover is characterized in that a second bearing is fixedly arranged on the bottom surface of the rear end cover, one end, far away from the first bearing, of the rotating shaft penetrates through the center of the isolating piece and is located in the second bearing, the rotating shaft is fixedly connected with the inner wall of the second bearing, one end, close to the second bearing, of the rotating shaft is sleeved with a fan blade, a connecting hole is formed in the center of the fan blade, the connecting hole is formed in the rotating shaft in a sleeved mode and is fixedly connected with the rotating shaft, the fan blade is located in a heat dissipation cavity, a plurality of heat dissipation holes are formed in the bottom surfaces of the isolating piece.

Adopt above-mentioned technical scheme, after the circular telegram, stator module can produce magnetic field, make the rotor subassembly at the magnetic field internal rotation, the rotor subassembly rotates and can drive the pivot and rotate, peg graft respectively in bearing one and bearing two at the both ends of pivot, bearing one and bearing two fix the both ends of pivot respectively, make the pivot can not rock when rotating, thereby make pivot and stator rotation that can both be steady, the noise that makes the motor when using reduces, the pivot rotates, can drive the flabellum and rotate, the flabellum rotates and can blow to the inside of shell, the heat on rotor and the stator can be taken away to the wind energy, cool off it, thereby make rotor and stator work for a long time, strengthen the performance of motor.

As preferred, the shell includes left casing and right casing, one side and the right casing hinge of left side casing are connected, the opposite side of left side casing is equipped with a plurality of locating pieces, the opposite side of right side casing is equipped with a plurality of constant head tanks, locating piece and constant head tank cooperation, the outside of left side casing has set firmly a plurality of fixed blocks, the outside of right side casing articulates there is a plurality of solid fixed rings, gu fixed ring and fixed block cooperation.

Adopt above-mentioned technical scheme, take off solid fixed ring's one end from the fixed block, can part left casing and right casing, be convenient for maintain and clear up rotor and stator, increase the life of motor.

Preferably, the inner wall of the shell is provided with a plurality of flow guide pipes along the length direction of the shell, one ends of the flow guide pipes are communicated with the fixed groove, one part of the flow guide pipes are close to the rear end cover, and the other part of the flow guide pipes are close to the front end cover.

By adopting the technical scheme, the air in the fixed groove can be circulated by the flow guide pipe, so that the stator is cooled more comprehensively, and the stator cannot be damaged due to long-time work.

Preferably, the side wall of the outer shell is fixedly provided with a plurality of shockproof rings, the shockproof rings are sleeved outside the stator assembly and fixedly connected with the stator assembly, the outer walls of the shockproof rings are fixedly connected with the right shell, the inner wall of the left shell is provided with a shockproof groove, and one side of each shockproof ring is matched with the corresponding shockproof groove.

By adopting the technical scheme, the vibration-proof ring can slow down slight vibration generated by the stator assembly during working, so that the vibration of the stator assembly can not drive the shell to vibrate, thereby reducing the noise generated by the stator assembly due to vibration and ensuring that the noise of the motor during working is smaller.

Preferably, the surface of shell has set firmly a plurality of screening glass, one side of screening glass has set firmly a branch piece, the other end of branch piece and the outside fixed connection of shell, seted up a plurality of little through-holes on the screening glass, it is a plurality of little through-hole staggers with the position in a plurality of ventilation holes.

Adopt above-mentioned technical scheme, the ventilation hole on little through-hole on the screening glass and shell surface staggers, makes inside the difficult shell that enters into of foreign matter, keeps the inside cleanness of shell to increase the life of motor.

Preferably, the front end cover and the rear end cover are respectively provided with a first four threaded holes, two ends of the shell are respectively provided with a second four threaded holes, the specifications of the first threaded holes and the second threaded holes are the same, the first threaded holes are internally provided with fixing screws, and the front end cover and the rear end cover are fixedly connected with the shell through the fixing screws.

By adopting the technical scheme, the front end cover and the rear end cover are fixed on the shell through the fixing screws, so that the motor is convenient to disassemble and assemble, and the motor is convenient to maintain.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the embodiment;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is another schematic structural diagram of the embodiment.

Reference numerals: 1. a housing; 11. fixing grooves; 12. a vent hole; 13. a flow guide pipe; 14. a shock-proof ring; 2. a stator assembly; 21. a rotor assembly; 22. a rotating shaft; 23. a fan blade; 3. a front end cover; 31. a first bearing; 4. a rear end cap; 41. a separator; 42. a heat dissipation cavity; 43. a second bearing; 44. heat dissipation holes; 5. a left housing; 51. a right housing; 52. positioning blocks; 53. positioning a groove; 54. a fixed block; 55. a fixing ring; 56. a shockproof groove; 6. a protective sheet; 61. supporting a piece; 62. a small through hole; 7. a first threaded hole; 71. a second threaded hole; 72. and fixing the screw.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in fig. 1 and 2, a shaded pole asynchronous motor includes a housing 1, a fixing groove 11 is formed on a sidewall of the housing 1, a stator assembly 2 is disposed in the fixing groove 11, and a sidewall of the stator assembly 2 is clamped in the fixing groove 11 and is matched with the fixing groove 11. The inner wall of the shell 1 is provided with a plurality of guide pipes 13 along the length direction of the shell 1, and one ends of the plurality of guide pipes 13 are communicated with the fixed groove 11. The other end of one part of the draft tube 13 is close to the rear end cover 4, and the other end of the other part of the draft tube 13 is close to the front end cover 3.

Stator module 2's lateral wall card makes stator module 2 can fix the fixed position in shell 1 in fixed slot 11, prevents that stator module 2 from removing in shell 1, makes stator module 2 can be better completion work.

The plurality of flow ducts 13 can cool a part of the stator assembly 2 located in the fixing groove 11 by circulating air in the fixing groove 11 and air in other portions of the casing 1 to make the temperature in the fixing groove 11 equal to the temperature in other portions of the casing 1.

As shown in fig. 2 and 4, the housing 1 includes a left housing 5 and a right housing 51, and one side of the left housing 5 is hingedly connected to the right housing 51. The other side of the left shell 5 is provided with a plurality of positioning blocks 52, the other side of the right shell 51 is provided with a plurality of positioning grooves 53, and the positioning blocks 52 are matched with the positioning grooves 53. The outside of left casing 5 sets firmly a plurality of fixed blocks 54, and the outside of right casing 51 articulates there is a plurality of solid fixed rings 55, gu fixed ring 55 and fixed block 54 cooperate.

As shown in fig. 2 and 3, a plurality of anti-vibration rings 14 are fixedly disposed on the side wall of the housing 1, and the anti-vibration rings 14 are sleeved outside the stator assembly 2 and are fixedly connected to the stator assembly 2. The outer wall of the shockproof ring 14 is fixedly connected with the right shell 51, the inner wall of the left shell 5 is provided with a shockproof groove 56, and one side of the shockproof ring 14 is matched with the shockproof groove 56.

When the motor is in use, the stator assembly 2 generates slight vibration, and the vibration generated by the stator assembly 2 is transmitted to the shell 1, so that the shell 1 also starts to vibrate. The fixing ring 55 can slow down the vibration transmitted from the stator assembly 2 to the housing 1, so that the motor is more stable in operation, thereby reducing the noise.

When the interior of the housing 1 needs to be cleaned, the fixing ring 55 is rotated around the hinge, so that the other end of the fixing ring 55 is removed from the fixing block 54, and the left housing 5 and the right housing 51 can be separated from each other. Rotate left casing 5 and right casing 51 round articulated department, make between left casing 5 and the right casing 51 separately, can clear up the inner wall of left casing 5 and right casing 51 to make the inside ability of shell 1 keep clean, be favorable to prolonging the life of motor.

As shown in fig. 1 and fig. 2, a rotor assembly 21 is disposed in the stator assembly 2, a rotating shaft 22 is fixedly disposed at the center of the rotor assembly 21, and the rotor assembly 21 is sleeved on the rotating shaft 22. One end of the shell 1 is provided with a front end cover 3, the center of the front end cover 3 is provided with a first rotating hole, a first bearing 31 is arranged in the first rotating hole, and the outer wall of the first bearing 31 is fixedly connected with the side wall of the first rotating hole. One end of the rotating shaft 22 passes through the first bearing 31 and is fixedly connected with the inner wall of the first bearing 31.

When the stator assembly 2 is energized, a magnetic field is generated, and the magnetic field generates a force to the rotor assembly 21, so that the rotor assembly 21 rotates in the magnetic field. The rotation of the rotor assembly 21 drives the rotation shaft 22 to rotate, so that the motor can operate normally.

As shown in fig. 1 and 2, a rear end cover 4 is disposed at one end of the housing 1 away from the front end cover 3, a second bearing 43 is fixedly disposed on a bottom surface of the rear end cover 4, one end of the rotating shaft 22 away from the first bearing 31 penetrates through a center of the spacer 41 and is located in the second bearing 43, and the rotating shaft 22 is fixedly connected with an inner wall of the second bearing 43.

The other end of the rotating shaft 22 is fixed by the second bearing 43, and one end of the rotating shaft 22, which is far away from the second bearing 43, is fixed by the first bearing 31, so that the rotating shaft 22 cannot shake during rotation, the rotor assembly 21 cannot rotate during rotation, the rotor assembly 21 and the rotating shaft 22 can both rotate stably, and noise is reduced.

As shown in fig. 2, a spacer 41 is disposed in the rear end cover 4, a side wall of the spacer 41 is fixedly connected with an inner wall of the rear end cover 4, and a heat dissipation cavity 42 is disposed between the spacer 41 and a bottom surface of the rear end cover 4. One end of the rotating shaft 22 close to the second bearing 43 is sleeved with a fan blade 23, a connecting hole is formed in the center of the fan blade 23, the connecting hole is sleeved on the rotating shaft 22 and is fixedly connected with the rotating shaft 22, and the fan blade 23 is located in the heat dissipation cavity 42.

As shown in fig. 1 and 2, the bottom surfaces of the isolation sheet 41 and the rear end cap 4 are respectively provided with a plurality of heat dissipation holes 44, and the side wall of the housing 1 is provided with a vent hole 12. The outer surface of shell 1 sets firmly a plurality of screening sheets 6, and one side of screening sheet 6 sets firmly branch piece 61, and the other end of branch piece 61 and the outside fixed connection of shell 1. The protective sheet 6 is provided with a plurality of small through holes 62, and the positions of the small through holes 62 and the vent holes 12 are staggered.

When the rotating shaft 22 rotates, the fan blades 23 are driven to rotate. When the fan blades 23 rotate, wind is generated. Fan blade 23 produces wind and can pass through louvre 44 on spacer 41, enters into inside the shell 1, blows on stator module 2 and rotor subassembly 21's surface, takes away the heat that stator module 2 and rotor subassembly 21 produced, cools off stator module 2 and rotor subassembly 21, makes stator module 2 and rotor subassembly 21 work for a long time, improves the performance of motor.

As shown in fig. 4, the front end cover 3 and the rear end cover 4 are respectively provided with four threaded holes one 7, two ends of the housing 1 are also respectively provided with four threaded holes two 71, and the specifications of the threaded holes one 7 and the threaded holes two 71 are the same. A fixing screw 72 is arranged in the first threaded hole 7, and the front end cover 3 and the rear end cover 4 are fixedly connected with the shell 1 through the fixing screw 72.

Front end housing 3 back end cap 4 all fixes on shell 1 through set screw 72, makes the dismouting of front end housing 3 and back end cap 4 more convenient, is convenient for dismantle the motor to maintain and clear up stator module 2 and rotor subassembly 21.

Claims

1. A shaded pole asynchronous motor comprises a shell (1) and is characterized in that a fixing groove (11) is formed in the side wall of the shell (1), a stator assembly (2) is arranged in the fixing groove (11), the side wall of the stator assembly (2) is clamped in the fixing groove (11) and matched with the fixing groove (11), a rotor assembly (21) is arranged in the stator assembly (2), a rotating shaft (22) is fixedly arranged at the center of the rotor assembly (21), the rotor assembly (21) is sleeved on the rotating shaft (22), a front end cover (3) is arranged at one end of the shell (1), a first rotating hole is formed in the center of the front end cover (3), a first bearing (31) is arranged in the first rotating hole, the outer wall of the first bearing (31) is fixedly connected with the side wall of the first rotating hole, one end of the rotating shaft (22) penetrates through the first bearing (31) and is fixedly connected with the inner wall of the first, the one end that front end housing (3) was kept away from in shell (1) is equipped with rear end housing (4), be equipped with spacer (41) in rear end housing (4), the lateral wall of spacer (41) and the inner wall fixed connection of rear end housing (4), be equipped with heat dissipation chamber (42) between the bottom surface of spacer (41) and rear end housing (4), bearing two (43) have set firmly on the bottom surface of rear end housing (4), the one end that bearing one (31) was kept away from in pivot (22) runs through the center department of spacer (41), and is located bearing two (43), the inner wall fixed connection of pivot (22) and bearing two (43), the pot head that pivot (22) is close to bearing two (43) is equipped with flabellum (23), the center department of flabellum (23) has seted up the connecting hole, the connecting hole cover is established on pivot (22), and with pivot (22) fixed connection, flabellum (23) are located heat dissipation chamber (42), a plurality of louvres (44) have all been seted up on the bottom surface of spacing block (41) and rear end cap (4), ventilation hole (12) have been seted up on the lateral wall of shell (1).

2. The shaded pole asynchronous motor according to claim 1, characterized in that, shell (1) includes left casing (5) and right casing (51), one side and right casing (51) hinged of left casing (5), the opposite side of left casing (5) is equipped with a plurality of locating pieces (52), the opposite side of right casing (51) is equipped with a plurality of constant head tanks (53), locating piece (52) and constant head tank (53) cooperation, the outside of left casing (5) has set firmly a plurality of fixed blocks (54), the outside of right casing (51) articulates there is a plurality of solid fixed ring (55), gu fixed ring (55) and fixed block (54) cooperation.

3. The shaded pole asynchronous motor according to claim 2, wherein a plurality of flow guide pipes (13) are arranged on the inner wall of the housing (1) along the length direction of the housing (1), one ends of the flow guide pipes (13) are communicated with the fixing groove (11), one part of the flow guide pipes (13) is close to the rear end cover (4), and the other part of the flow guide pipes (13) is close to the front end cover (3).

4. The shaded pole asynchronous motor according to claim 3, wherein a plurality of vibration-proof rings (14) are fixedly arranged on the side wall of the housing (1), the vibration-proof rings (14) are sleeved outside the stator assembly (2) and are fixedly connected with the stator assembly (2), the outer wall of each vibration-proof ring (14) is fixedly connected with the right shell (51), the inner wall of the left shell (5) is provided with a vibration-proof groove (56), and one side of each vibration-proof ring (14) is matched with the vibration-proof groove (56).

5. The shaded pole asynchronous motor according to claim 4, characterized in that a plurality of protection plates (6) are fixedly arranged on the outer surface of the housing (1), a supporting plate (61) is fixedly arranged on one side of each protection plate (6), the other end of each supporting plate (61) is fixedly connected with the outer side of the housing (1), a plurality of small through holes (62) are formed in each protection plate (6), and the positions of the small through holes (62) and the positions of the ventilation holes (12) are staggered.

6. The shaded pole asynchronous motor according to claim 1, wherein four threaded holes I (7) are formed in each of the front end cover (3) and the rear end cover (4), four threaded holes II (71) are formed in each of two ends of the housing (1), the specifications of the threaded holes I (7) and the threaded holes II (71) are the same, a fixing screw (72) is arranged in each threaded hole I (7), and each of the front end cover (3) and the rear end cover (4) is fixedly connected with the housing (1) through the fixing screw (72).