CN216904541U

CN216904541U - Shaded pole motor

Info

Publication number: CN216904541U
Application number: CN202123151773.4U
Authority: CN
Inventors: 欧最彬; 阙宇萧; 黄宇杰; 甄虹晴
Original assignee: Hunan Ruiyi Motor Manufacturing Co ltd
Current assignee: Hunan Ruiyi Motor Manufacturing Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-05
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a shaded pole motor which comprises a stator assembly, a rotor assembly with a rotating shaft, a first support and a second support, wherein the first support and the second support are respectively arranged at two ends of the stator assembly, the rotating shaft is rotatably arranged on the first support, the rotating shaft is rotatably arranged on the second support through a bearing, the second support is provided with an installation counter bore, the bearing is arranged in the installation counter bore, the open end of the installation counter bore is provided with a riveting positioning part for positioning the bearing in the installation counter bore by adopting a riveting process, and an elastic buffer assembly for buffering and damping axial movement of the bearing is arranged in the installation counter bore. The shaded pole motor has the advantages of good damping effect, low noise, low requirements on assembly process and equipment, simple and compact structure, low cost, easiness in manufacturing and assembly, easiness in popularization and application and the like.

Description

Shaded pole motor

Technical Field

The utility model relates to the technical field of motors, in particular to a shaded pole motor.

Background

The shaded pole motor mainly comprises a rotor assembly, a stator assembly, two supports and fasteners, wherein the two supports are installed at the two ends of the stator assembly through the fasteners, and a shaft of the rotor assembly is rotatably installed on the two supports through ball bearings. When the existing shaded pole motor is manufactured, the ball bearing is installed on the support through riveting process, namely, the counter bore is formed in the support, the ball bearing is installed in the counter bore, the opening end of the counter bore is provided with a plurality of riveting positioning portions for positioning the bearing in the counter bore, and therefore the number of used parts can be reduced, cost is reduced, assembly is simplified, assembly difficulty is reduced, and the structure is compact.

However, the following drawbacks also exist in the installation of the ball bearing by forming the rivet locating portion by the rivet pressing process: firstly, the riveting positioning part formed by adopting the riveting process directly presses and fixes the outer ring of the ball bearing, the ball bearing is rigidly and fixedly arranged on the bracket, and when the assembled shaded pole motor works, the vibration generated by the rotor assembly is easily and directly transmitted to the bracket through the ball bearing, so that the vibration of the shaded pole motor, equipment provided with the shaded pole motor and a product is large; secondly, when a plurality of riveting positioning parts formed by the riveting process are adopted, the pressing effect of each riveting positioning part on the ball bearing is difficult to be ensured to be consistent, so that the concentricity of the axis of the ball bearing and the axis of the rotating shaft has deviation, the noise is larger when the shaded pole motor operates, and the requirements on the precision of a die and equipment adopted by the riveting process are extremely high in order to ensure that the pressing effect of the riveting positioning parts on the ball bearing is consistent; in addition, in the process of forming the riveting positioning part by adopting the riveting process, the outer ring of the ball bearing is extruded, so that the structures such as the outer ring of the ball bearing, an internal track and the like are deformed, the performance of the ball bearing is influenced, and even the ball bearing is blocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems of the prior art and provide the shaded pole motor which has the advantages of good damping effect, low noise, low requirements on assembly process and equipment, simple and compact structure, low cost, easy manufacture and assembly and easy popularization and application.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a shaded pole motor, includes stator module, has rotor subassembly, first support and the second support of pivot, first support and second support are installed respectively at stator module's both ends, the pivot is rotated and is installed first support, the pivot is passed through the bearing and is rotated and install on the second support, the second support has the installation counter bore, the bearing is installed in the installation counter bore, the open end of installation counter bore adopts the riveting technology to be formed with the riveting location portion of bearing location in the installation counter bore, install in the installation counter bore and be used for carrying out the elastic buffer subassembly that cushions the damping to bearing axial motion.

As a further improvement of the above technical solution:

the elastic buffer component comprises an elastic buffer member installed in the installation counter bore, one end of the elastic buffer member is directly or indirectly connected with the outer ring of the bearing, and the other end of the elastic buffer member is directly or indirectly connected with the bottom surface of the installation counter bore.

The elastic buffer piece is a silica gel gasket with a center hole, and the rotating shaft penetrates through the center hole of the silica gel gasket.

The elastic buffer piece is a wave spring with a center hole, and the rotating shaft penetrates through the center hole of the wave spring.

The bottom surface of installation counter bore has the chamfer of processing formation with pore wall junction all around, the chamfer encloses into bottom undergauge hole section, be equipped with in the installation counter bore the bedding up piece that bottom undergauge hole section was filled up and is leveled, elastic buffer passes through the indirect bottom surface with the installation counter bore that meets of bedding up piece.

The flat piece of pad is red post paper gasket of annular.

Stator module includes main stator, wire frame and connects the vice stator on main stator, main stator is equipped with the stator hole, the rotor subassembly is located in the stator hole, vice stator is worn to establish and is installed in the hole of wire frame, the wire frame is outside around being equipped with the coil, first support and second support pass through the fastener and install the both ends at main stator.

The first support and the second support are mounted on the main stator through a plurality of screws, and the screws penetrate through the first support, the second support and the main stator simultaneously to connect and fix the first support, the second support and the main stator.

And an annular pressing gasket positioned between the bearing outer ring and the riveting positioning part is arranged in the mounting counter bore.

Compared with the prior art, the utility model has the advantages that:

according to the shaded pole motor, the riveting positioning part is formed by adopting a riveting process to position the bearing in the mounting counter bore, the elastic buffer component is mounted in the mounting counter bore of the second support and can buffer and damp axial movement of the bearing, the elastic buffer component not only plays a role in reducing axial vibration generated by the rotor component during working and transmitting the axial vibration to the second support, and achieves the effect of greatly reducing vibration, but also allows the bearing to adjust the angle of the axis in a self-adaptive manner within a certain range, so that the coaxiality of the axis of the bearing and the axis of the rotating shaft is good, the running noise can be greatly reduced, and the requirements on riveting process operation and equipment precision are favorably reduced; meanwhile, in the process of forming the riveting positioning part by adopting the riveting process, the elastic buffer assembly also plays a role in buffering, so that the deformation of structures such as a bearing outer ring and an internal track caused by extruding the outer ring of the bearing can be avoided, and the quality and the performance of the assembled shaded pole motor are improved. The shaded pole motor also has the advantages of simple and compact structure, low cost, easy manufacture and assembly and easy popularization and application.

Drawings

Fig. 1 is a schematic perspective view of a shaded-pole motor in embodiment 1.

Fig. 2 is a schematic sectional view of a shaded-pole motor according to embodiment 1.

Fig. 3 is an exploded view of the shaded pole motor according to embodiment 1.

Fig. 4 is a schematic perspective view of the bearing mounted on the second bracket in embodiment 1.

Fig. 5 is a schematic sectional view showing the structure of the bearing mounted on the second bracket in embodiment 1.

Fig. 6 is a schematic view of an exploded structure of the bearing mounted on the second bracket in embodiment 1.

Fig. 7 is an exploded view of the shaded pole motor according to embodiment 2.

Fig. 8 is a schematic view of an exploded structure of the bearing mounted on the second bracket in embodiment 2.

Fig. 9 is a schematic sectional view showing the structure of the bearing mounted on the second bracket in embodiment 2.

Fig. 10 is an exploded view of the shaded pole motor according to example 3.

Fig. 11 is a schematic view of an exploded structure of the bearing mounted on the second bracket in example 3.

FIG. 12 is a schematic sectional view showing the structure of the bearing mounted on the second bracket in embodiment 3.

Illustration of the drawings:

1. a stator assembly; 11. a main stator; 111. a stator bore; 12. a wire frame; 121. a side hole; 13. a secondary stator; 14. a coil; 15. a power line; 2. a rotor assembly; 21. a rotating shaft; 3. a first bracket; 4. a second bracket; 41. mounting a counter bore; 5. a bearing; 6. a silica gel gasket; 7. a wave spring; 8. a cushioning member; 9. an annular compression gasket; 101. a screw; 102. and a retainer ring.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

Example 1:

as shown in fig. 1 and 6, the shaded pole motor of the present embodiment includes a stator assembly 1, a rotor assembly 2 having a rotating shaft 21, a first bracket 3 and a second bracket 4, the first bracket 3 and the second bracket 4 are respectively installed at two ends of the stator assembly 1, the rotating shaft 21 is rotatably installed at the first bracket 3, the rotating shaft 21 is rotatably installed on the second bracket 4 through a bearing 5, the second bracket 4 has an installation counterbore 41, the bearing 5 is installed in the installation counterbore 41, a riveting positioning portion (not shown in the figure) for positioning the bearing 5 in the installation counterbore 41 is formed at an opening end of the installation counterbore 41 by using a riveting process, and an elastic buffer assembly for buffering and damping axial movement of the bearing 5 is installed in the installation counterbore 41. The shaded pole motor adopts a riveting process to form a riveting positioning part to position the bearing 5 in the mounting counterbore 41, the elastic buffer component is mounted in the mounting counterbore 41 of the second bracket 4 and can buffer and damp the axial movement of the bearing 5, the elastic buffer component not only plays a role in reducing the axial vibration generated by the rotor component 2 during working and transmitting the axial vibration to the second bracket 4, thereby achieving the effect of greatly reducing the vibration, but also allows the bearing 5 to self-adaptively adjust the axial angle within a certain range, so that the coaxiality of the axis of the bearing 5 and the axis of the rotating shaft 21 is good, the running noise can be greatly reduced, and the requirements on the riveting process operation and the equipment precision can be favorably reduced; meanwhile, in the process of forming the riveting positioning part by adopting the riveting process, the elastic buffer assembly also plays a role in buffering, so that the deformation of structures such as the outer ring of the bearing 5, an internal track and the like caused by the extrusion of the outer ring of the bearing 5 can be avoided, and the quality and the performance of the assembled shaded pole motor are improved. The shaded pole motor also has the advantages of simple and compact structure, low cost, easy manufacture and assembly and easy popularization and application.

In this embodiment, the elastic buffer assembly includes an elastic buffer member installed in the installation counterbore 41, one end of the elastic buffer member is directly or indirectly connected to the outer ring of the bearing 5, and the other end of the elastic buffer member is directly or indirectly connected to the bottom surface of the installation counterbore 41. The elastic buffer assembly can realize buffer and vibration reduction by only adopting one elastic buffer piece to be arranged in the mounting counter bore 41, and has the advantages of simple and compact structure, low cost and convenient assembly.

In this embodiment, the elastic buffer member is a silicon rubber gasket 6 having a central hole, and the rotating shaft 21 penetrates through the central hole of the silicon rubber gasket 6. The silica gel gasket 6 has the advantages of simple structure, low cost and good buffering and vibration damping effects, the silica gel gasket 6 with the center hole is adopted, the rotating shaft 21 penetrates through the center hole of the silica gel gasket 6, the silica gel gasket 6 is in contact with the whole outer ring of the bearing 5 to perform buffering and vibration damping, and the buffering and vibration damping effects are good.

In this embodiment, stator module 1 includes main stator 11, wire frame 12 and connects the vice stator 13 on main stator 11, main stator 11 is equipped with stator hole 111, rotor subassembly 2 is arranged in stator hole 111, vice stator 13 wears to establish and installs in the hole of wire frame 12, wire frame 12 is outside around being equipped with coil 14, first support 3 and second support 4 pass through the fastener and install the both ends at main stator 11, convenient assembly and maintenance, and it is good to connect the fixity. The wire frame 12 is provided with a side hole 121, and an enameled wire of the coil 14 and a power line 15 connected to the coil 14 are welded to each other and fixed through the side hole 121, and the other structure and constitution of the stator assembly 1 can refer to the prior art. In this embodiment, the rotation shaft 21 is further provided with a retaining ring 102 for positioning the second bracket 4 in a clamping manner.

In this embodiment, the first bracket 3 and the second bracket 4 are mounted on the main stator 11 by a plurality of screws 101, and the screws 101 simultaneously penetrate through the first bracket 3, the second bracket 4 and the main stator 11 to connect and fix the three. The number of the screws 101 can be saved, the cost is reduced, the assembly difficulty is reduced, and the assembly operation is simplified.

In this embodiment, an annular pressing gasket 9 located between the outer ring of the bearing 5 and the riveting positioning portion is installed in the installation counterbore 41. Because the general size of the riveting location portion that adopts the riveting technology to form is less, and the riveting location portion that the size is less with the contact location area of bearing 5 outer lane, if riveting location portion direct and the outer lane contact of bearing 5 compress tightly the location, it is relatively poor to the location effect that compresses tightly of bearing 5 outer lane, especially the outer lane of general bearing 5 all has a chamfer, this can lead to riveting location portion to be difficult to the firm positioning effect that compresses tightly of bearing 5 outer lane formation more to lead to the bearing 5 outer lane to warp more easily. After the annular pressing gasket 9 is added, the riveting positioning part indirectly presses the positioning bearing 5 outer ring through the annular pressing gasket 9, so that the installation stability of the bearing 5 can be improved, and the deformation and the damage of the bearing 5 outer ring are not easily caused.

Example 2:

as shown in fig. 7 to 9, the shaded pole motor of the present embodiment is substantially the same as embodiment 1, and mainly differs therefrom in that in the present embodiment, the elastic buffer is a wave spring 7 having a central hole, and the rotating shaft 21 passes through the central hole of the wave spring 7. The wave spring 7 also has the advantages of simple structure, low cost and good buffering and vibration damping effects.

In this embodiment, the junction of the bottom surface of the mounting counter bore 41 and the surrounding bore walls is provided with a chamfer formed by machining, the chamfer encloses into a bottom reducing bore section, a flattening member 8 for flattening the bottom reducing bore section is installed in the mounting counter bore 41, and the wave spring 7 is indirectly connected with the bottom surface of the mounting counter bore 41 through the flattening member 8. The bottom surface of the mounting counter bore 41 is a flat surface, the influence of the chamfer angle of the mounting counter bore 41 on the mounting angle of the wave spring 7 can be avoided, the consistency of the angle and the design angle of the bearing 5 can be ensured to be good under the condition of fast mounting of the bearing 5, the coaxiality of the axis of the bearing 5 and the axis of the rotating shaft 21 is ensured to be good under the condition of fast mounting, and the buffering and shock absorption of the wave spring 7 after mounting are optimal. In most cases, forming the mounting counterbore 41 in the second bracket 4 will generally result in a chamfer at the junction of the bottom surface of the mounting counterbore 41 and the surrounding bore wall, thus necessitating the provision of the spacer 8.

In this embodiment, the flat member 8 is an annular red granite paper pad, which is low in cost, simple and convenient to manufacture, and easy to obtain.

Example 3:

as shown in fig. 10 to 12, the shaded-pole motor of the present embodiment is substantially the same as embodiment 2, and mainly differs therefrom in that, in the present embodiment, an annular pressing gasket 9 located between the outer ring of the bearing 5 and the rivet pressing positioning portion is further installed in the installation counterbore 41. Because the general size of the riveting location portion that adopts the riveting technology to form is less, and the riveting location portion that the size is less with the contact location area of bearing 5 outer lane, if riveting location portion direct and the outer lane contact of bearing 5 compress tightly the location, it is relatively poor to the location effect that compresses tightly of bearing 5 outer lane, especially the outer lane of general bearing 5 all has a chamfer, this can lead to riveting location portion to be difficult to the firm positioning effect that compresses tightly of bearing 5 outer lane formation more to lead to the bearing 5 outer lane to warp more easily. After the annular pressing gasket 9 is added, the riveting positioning part indirectly presses the positioning bearing 5 outer ring through the annular pressing gasket 9, so that the installation stability of the bearing 5 can be improved, and the deformation and the damage of the bearing 5 outer ring are not easily caused.

In other embodiments, the flat member 8 can be eliminated on the basis of

embodiments

2 and 3, and the elastic buffer members in embodiments 1 to 3 can also adopt other existing members having the buffering and damping performance.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described examples. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the utility model are to be considered as within the scope of the utility model.

Claims

1. The utility model provides a shaded pole motor, includes stator module (1), rotor module (2) that have pivot (21), first support (3) and second support (4), install respectively at the both ends of stator module (1) first support (3) and second support (4), pivot (21) are rotated and are installed first support (3), pivot (21) are rotated through bearing (5) and are installed on second support (4), second support (4) have installation counter bore (41), bearing (5) are installed in installation counter bore (41), the open end of installation counter bore (41) adopts the riveting technology to be formed with the riveting location portion of fixing a position bearing (5) in installation counter bore (41), its characterized in that: and an elastic buffer assembly for buffering and damping the axial movement of the bearing (5) is arranged in the mounting counter bore (41).

2. The shaded-pole motor of claim 1, wherein: the elastic buffer assembly comprises an elastic buffer member arranged in the mounting counterbore (41), one end of the elastic buffer member is directly or indirectly connected with the outer ring of the bearing (5), and the other end of the elastic buffer member is directly or indirectly connected with the bottom surface of the mounting counterbore (41).

3. The shaded-pole motor of claim 2, wherein: the elastic buffer piece is a silica gel gasket (6) with a center hole, and the rotating shaft (21) penetrates through the center hole of the silica gel gasket (6).

4. The shaded-pole motor of claim 2, wherein: the elastic buffer piece is a wave spring (7) with a central hole, and the rotating shaft (21) penetrates through the central hole of the wave spring (7).

5. The shaded-pole motor of claim 2, wherein: the bottom surface of installation counter bore (41) and the pore wall junction all around have the chamfer of processing formation, the chamfer encloses into bottom undergauge hole section, be equipped with in installation counter bore (41) the flat piece of pad (8) that the undergauge hole section was filled up, elastomeric buffer passes through the flat piece of pad (8) are indirect to be met with the bottom surface of installation counter bore (41).

6. The shaded-pole motor of claim 5, wherein: the flat gasket (8) is an annular red granite paper gasket.

7. The shaded-pole motor of claim 1, wherein: stator module (1) includes main stator (11), wire frame (12) and connects vice stator (13) on main stator (11), main stator (11) are equipped with stator hole (111), rotor subassembly (2) are located in stator hole (111), vice stator (13) are worn to establish and are installed in the hole of wire frame (12), wire frame (12) outside is around being equipped with coil (14), the both ends at main stator (11) are installed through the fastener in first support (3) and second support (4).

8. The shaded-pole motor of claim 7, wherein: the first support (3) and the second support (4) are mounted on the main stator (11) through a plurality of screws (101), and the screws (101) penetrate through the first support (3), the second support (4) and the main stator (11) simultaneously to connect and fix the first support (3), the second support (4) and the main stator.

9. The shaded-pole machine according to any of claims 1 to 8, wherein: an annular pressing gasket (9) positioned between the outer ring of the bearing (5) and the riveting positioning part is arranged in the mounting counter bore (41).