CN216842281U

CN216842281U - High-strength shaded pole type fan

Info

Publication number: CN216842281U
Application number: CN202121333233.5U
Authority: CN
Inventors: 孙宏利; 周宇楠; 陈倩; 于收海
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-06-28
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a high-strength shaded pole type fan, which comprises a shell assembly and a rotor assembly, wherein the rotor assembly is connected with the shell assembly through a bearing, and the shell assembly comprises a shell and a stator assembly in interference connection with the shell; the stator assembly comprises a stator iron core assembly and a stator winding, the stator iron core assembly comprises a stator iron core, a rivet, a short circuit ring, a shaft sleeve, an upper end plate and a lower end plate, the stator iron core comprises an outer yoke iron core and an inner yoke iron core, a wire slot is arranged between the outer yoke iron core and the inner yoke iron core, 2 tooth sockets which correspond to each other on the same diameter are arranged on the periphery of the wire slot, a magnetic conductive plate is fixed on the tooth sockets, and the short circuit ring is nested in the wire slot; the magnetic conductive sheet is made of carbon steel. The magnetic conductive sheet added in the product improves the magnetic conductivity of the notch, avoids tooth socket torque and enables the fan to rotate more stably; the limiting ring structure is added for preventing the axial movement of the stator core and improving the structural strength and reliability of the product.

Description

High-strength shaded-pole type fan

Technical Field

The utility model relates to a shaded-pole fan technical field, concretely relates to high strength shaded-pole fan.

Background

The development of domestic shaded pole type fans is less, and particularly, alternating current fans used in severe environments mainly depend on foreign imports. The problems of high self-vibration, low reliability, poor fan strength and insufficient overall performance of the fan in the prior art exist.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a shaded pole formula fan that intensity is high, the natural vibration is low, the reliability is high.

In order to achieve the above object, the utility model adopts the following technical scheme: the rotor assembly is connected with the shell assembly through a bearing, and the shell assembly comprises a shell and a stator assembly in interference connection with the shell; the stator assembly comprises a stator iron core assembly and a stator winding, the stator iron core assembly comprises a stator iron core, a rivet, a short circuit ring, a shaft sleeve, an upper end plate and a lower end plate, the stator iron core comprises an outer yoke iron core and an inner yoke iron core, a wire slot is arranged between the outer yoke iron core and the inner yoke iron core, 2 tooth sockets which correspond to each other on the same diameter are arranged on the periphery of the wire slot, a magnetic conductive plate is fixed on the tooth sockets, and the short circuit ring is nested in the wire slot; the magnetic conductive sheet is made of carbon steel.

The limiting ring is fixed on the shaft sleeve, and after the stator core is fixed on the shaft sleeve, the limiting ring is assembled and fixed on the shaft sleeve for preventing the axial movement of the stator core and improving the structural strength and reliability of a product.

The limiting ring and the shaft sleeve are welded by laser.

The upper side of the inner yoke iron core is provided with a semicircular groove, and a stator key is arranged in the groove to play a role in preventing the stator assembly from rotating.

Use the utility model has the advantages that: the product is added with a magnetic conduction sheet structure on the basis of the prior art, particularly adopts No. 10 steel with excellent magnetic conduction property, improves the magnetic conduction performance of a notch, avoids tooth space torque and enables the rotation of a fan to be more stable; the limiting ring structure is added for preventing the axial movement of the stator core and improving the structural strength and reliability of the product.

Drawings

Fig. 1 is a schematic diagram of a fan structure.

Fig. 2 is a schematic structural view of the housing assembly.

Fig. 3 is a schematic view of the structure of the magnetic conductive sheet.

Fig. 4 is a schematic view of a stop collar.

Fig. 5 is a schematic view of the rotor assembly structure.

Fig. 6 is a schematic view of a rotor core assembly.

The reference numerals include:

1-housing assembly, 2-rotor assembly, 3-spring spacer, 4-spring, 5-bearing, 6-hole circlip, 7-adjusting spacer, 8-shaft circlip, 9-end cover, 10-housing, 11-stator assembly, 13-stator core assembly, 13-1 inner yoke core, 13-2 outer yoke core, 13-3 tooth space, 14-magnetic conductive sheet,

15-stator winding, 16-stator core, 17-rivet, 18-short circuit ring, 19-shaft sleeve, 20-limit ring, 21-stator key, 22-upper end piece, 23-lower end piece, 24 fan blade, 25 shaft, 26 rotor core component, 27-pure aluminum layer and 28 rotor core.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

The utility model discloses a shaded pole type fan with high strength, low self-vibration and high reliability, which comprises a shell component 1 and a rotor component 2, wherein the rotor component 2 is connected with the shell component 1 through a bearing 5, the shell component 1 comprises a shell, a stator component 11 in interference connection with the shell, a spring gasket 3, a spring 4, a bearing 5, a hole elastic retainer ring 6, an adjusting gasket 7, a shaft elastic retainer ring 8 and an end cover 9; spring washer 3, spring 4 are arranged in between bearing 5 and rotor subassembly 2, and axle circlip 8 blocks in rotor subassembly 2's recess, make rotor subassembly 2 not take off casing subassembly 1, and adjusting shim 7 is arranged in between bearing 5 and the axle circlip 8, adjusts the amount of compression of axial clearance and spring 4, and end cover 9 passes through the threaded fixation on casing subassembly 1, seals the bearing room, reduces the long-time work bearing of fan and advances grey.

The stator assembly 11 comprises a stator iron core assembly 13 and a stator winding 15, wherein the stator iron core assembly 13 comprises a stator iron core 16, rivets 17, a short circuit ring 18, a shaft sleeve 19, an upper end plate 22 and a lower end plate 23, the stator iron core 16 comprises an outer yoke iron core 13-2 and an inner yoke iron core 13-1, a wire slot is arranged between the outer yoke iron core 13-2 and the inner yoke iron core 13-1, the periphery of the wire slot is provided with 2 tooth spaces 13-3 which are mutually corresponding on the same diameter, a magnetic conductive plate 14 is fixed on each tooth space 13-3, and the short circuit ring 18 is nested in the wire slot; the magnetic conductive sheet 14 is made of carbon steel. The magnetic conductive sheet 14 is arranged at the tooth space of the outer yoke iron core 13-2 in an interference manner, the short circuit ring 18 penetrates through the stator iron core 16 and is fixed on the stator iron core 16 by welding, the upper end sheet 22 and the lower end sheet 23 are adhered to the upper end and the lower end of the stator iron core 16, the stator winding 15 is wound in the stator iron core, and the whole magnetic conductive sheet is arranged in the shell 10 in an interference manner.

The limiting ring 20 is fixed on the shaft sleeve 19, and the limiting ring 20 is assembled and fixed on the shaft sleeve 19 after the stator core 16 is fixed on the shaft sleeve 19, so that the axial movement of the stator core 16 is prevented, and the structural strength and reliability of a product are improved.

The limiting ring 20 and the shaft sleeve 19 are welded by laser.

The upper side of the inner yoke iron core 13-1 is provided with a semicircular groove, and a stator key 21 is arranged in the groove and plays a role in preventing the stator assembly 11 from rotating.

The rotor assembly 2 comprises fan blades 24, a shaft 25 and a rotor iron core assembly 26, wherein the rotor iron core assembly 26 comprises a pure aluminum structure 27 and a rotor iron core 28; the pure aluminum layer 27 is combined with the rotor core 28 through die casting, on the basis, the aluminum alloy fan blades 24 are die-cast for the second time, the shaft 25 and the rotor core assembly 26 are combined together through the fan blades 24, and the rotor core assembly 26 rotates to drive the fan blades 25 to rotate, so that the fan flows.

The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a high strength shaded pole formula fan which characterized in that: the rotor assembly is connected with the shell assembly through a bearing, and the shell assembly comprises a shell and a stator assembly in interference connection with the shell; the stator assembly comprises a stator iron core assembly and a stator winding, the stator iron core assembly comprises a stator iron core, a rivet, a short circuit ring, a shaft sleeve, an upper end plate and a lower end plate, the stator iron core comprises an outer yoke iron core and an inner yoke iron core, a wire slot is arranged between the outer yoke iron core and the inner yoke iron core, 2 tooth sockets which correspond to each other on the same diameter are arranged on the periphery of the wire slot, a magnetic conductive plate is fixed on the tooth sockets, and the short circuit ring is nested in the wire slot; the magnetic conductive sheet is made of carbon steel.

2. The high strength shaded-pole fan of claim 1, wherein: the limiting ring is fixed on the shaft sleeve, and after the stator core is fixed on the shaft sleeve, the limiting ring is assembled and fixed on the shaft sleeve for preventing the axial movement of the stator core and improving the structural strength and reliability of a product.

3. The high strength shaded-pole fan of claim 2, wherein: the limiting ring and the shaft sleeve are welded by laser.

4. A high strength shaded-pole fan according to claim 1 or 3, wherein: the upper side of the inner yoke iron core is provided with a semicircular groove, and a stator key is arranged in the groove to play a role in preventing the stator assembly from rotating.