CN219576719U

CN219576719U - Shaded pole motor

Info

Publication number: CN219576719U
Application number: CN202222554105.4U
Authority: CN
Inventors: 李恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-08-22
Anticipated expiration: 2032-09-26

Abstract

The utility model provides a shaded pole motor, which comprises a rotor, four claw poles and an outer frame, wherein the four claw poles are arranged around the rotor in a separated mode, the outer frame surrounds the outer side of the claw poles, a wire bag surrounds the outer side of the claw poles, a retainer is arranged around the side face of the claw poles, the retainer and the claw poles are assembled to form an integrated inner stator structure, and the integrated inner stator structure is fixed to the inner side of the outer frame; the four claw poles are opposite to each other, and a gap is arranged between any two adjacent claw poles; the retainer comprises a winding framework and a connecting frame, a first sub-stator and a second sub-stator are arranged at one end of each claw pole far away from the outer frame, and one ends of the first sub-stator and the second sub-stator are fixedly connected to the claw pole, and the other ends extend towards opposite directions; a short circuit ring is sleeved on the first sub-stator, and the claw pole is connected with the outer frame in a riveting way; through above-mentioned technical scheme, the problem of lack a motor efficiency height and simple shaded pole motor of wire package coiling among the solution prior art.

Description

Shaded pole motor

Technical Field

The present utility model relates to an electric motor, and more particularly, to a shaded pole electric motor.

Background

The shaded pole motor is a common motor in a unidirectional alternating current motor, and a cage chute cast aluminum rotor is generally adopted, and after a main winding of the shaded pole motor is electrified, a shaded pole winding can generate induced current, so that the magnetic flux of a part of a stator pole covered by the shaded pole winding and an unshielded part rotate towards the direction of a covered part.

Existing shaded pole motors typically have an integral stator motor and a split stator motor.

The domestic publication number CN 201781391U: a novel four-stage shaded pole motor is composed of a front bracket assembly, a rotor assembly, a stator assembly, an iron shell, a sheath and a rear bracket assembly, wherein the stator assembly comprises four main winding groups and four shaded pole windings; the shaded pole curve of the shaded pole winding is not on the same circular arc with the main pole curve of the main pole of the main winding group. The shaded pole motor belongs to an integrated stator motor, the winding difficulty of a coil (winding group) of the integrated stator motor is high, a large number of winding machines are needed to be input during production, the productivity of a single winding machine is low, the winding of the coil is loose and uneven, the heating amount of the motor is high, and the vibration is large.

In addition, the domestic patent with publication number CN107786052a also discloses: the four-stage shaded-pole motor comprises a large stator, wire frames, windings, copper rings and small stators, wherein the short circuit rings are wound on the wire frames, the wire frames are provided with the windings, the four wire frames are uniformly fixed outside the small stators, the windings in each wire frame are sequentially connected in series, the small stators are in a cross shape, the middle part of each small stator is provided with a through hole, and a rotor with a pressed axle center is arranged in each through hole; the small stator is fixedly arranged in the large outer ring stator, the small stator, the wire frame, the large stator and the rotor are all arranged in the motor shell, protruding parts are arranged on each end face of the small stator in a cross shape, concave parts are arranged on corresponding positions of the inner side faces of the large stator, and the small stator and the wire frame are assembled on the large outer ring stator together through the concave parts and the protruding parts which are matched with each other. The shaded pole motor belongs to a split stator motor, and although the wire winding is simple, the productivity is high, and the enameled wires are uniformly distributed. However, due to the process requirements, a connection process between small stators is necessary, which is prone to magnetic shorting, making the motor less efficient than an integrated stator motor.

To sum up, be difficult to obtain the unification of wire winding degree of difficulty and motor efficiency among the current shaded pole motor, lack a novel shaded pole motor that the wire winding is simple and motor efficiency is high.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a shaded pole motor for solving the problems of the prior art that the split stator motor has simple winding but low motor efficiency, and the integrated stator motor has high motor efficiency but loose winding, and the motor efficiency is high and the winding of the wire is simple.

To achieve the above and other related objects, the present utility model provides a shaded pole motor, comprising a rotor, four claw poles separately provided around the rotor, and an outer frame surrounding the outer sides of the claw poles, wherein a wire package surrounds the outer sides of the claw poles, a retainer is provided around the side surfaces of the claw poles, the retainer and the claw poles are assembled to form an integral inner stator structure, and the integral inner stator structure is fixed to the inner side of the outer frame; the four claw poles are opposite to each other, and a gap is arranged between any two adjacent claw poles.

Through above-mentioned technical scheme, add the holder between claw utmost point and frame to the intermediate between claw utmost point and the frame is regarded as to the holder, reduces the wire winding degree of difficulty of integrative stator motor, and because do not connect between the claw utmost point, the efficiency of motor is higher. When winding, the claw pole is not limited in the outer frame, the winding difficulty is low, and after winding is completed, the outer frame is connected with the retainer through riveting, so that the claw pole is embedded in the outer frame.

In an embodiment of the utility model, the retainer includes a winding frame sleeved on the claw pole and a connecting frame connecting the four winding frames into a whole, and the wire is wound on the winding frame.

Through above-mentioned technical scheme, at first four wire winding skeletons are produced, and every wire winding skeleton corresponds a claw utmost point, then connects the link of four wire winding skeletons through injection molding technology sound field, still need not to connect between the claw utmost point this moment, leaves the clearance, but forms the integral type internal stator structure through the holder, has both kept the efficient advantage of integral type stator motor, has absorbed the low advantage of components of a whole that can function independently stator motor wire winding degree of difficulty again.

In an embodiment of the utility model, the retainer is an integrally injection molded plastic frame, the retainer comprises an outer winding framework and a connecting frame with an inner side connected with the winding framework, the winding framework is sleeved outside the claw pole, and the wire is wrapped on the winding framework.

Through the technical scheme, another integral injection molding cage scheme is provided, and the production is simpler.

In an embodiment of the present utility model, a first sub-stator and a second sub-stator are respectively disposed at one end of each claw pole far away from the outer frame, and one ends of the first sub-stator and the second sub-stator are fixedly connected to the claw pole, and the other ends extend in opposite directions; and a short circuit ring is sleeved on the first sub-stator.

In an embodiment of the utility model, the fixing manner of the outer side of the retainer and the outer frame is riveting.

In an embodiment of the present utility model, a gap is provided between the first sub-stator of each claw pole and the second sub-stator of its adjacent claw pole.

In an embodiment of the utility model, the inner side of the outer frame is rectangular, and the four claw poles are in one-to-one correspondence with the four inner corners of the inner side of the outer frame.

As described above, the shaded pole motor of the present utility model has the following beneficial effects:

1. the retainer is additionally arranged between the outer frame, the retainer is connected with the claw pole in series to replace the existing split stator motor to connect the claw pole structure, an assembling method of firstly winding and then embedding the integrated claw pole into the outer frame is provided, the winding difficulty of the integrated stator motor is reduced, and because the claw poles are not connected, the motor efficiency is higher, the defects of the existing integrated stator motor and split stator motor are avoided, the advantages of the existing split stator motor are integrated, and the unification of the winding difficulty and the motor efficiency is achieved.

2. The motor structure of split-before-combined body is formed by the retainer and subsequent riveting, the integrated forming structure of the existing integrated spindle motor is replaced, winding of the wire is completed during split, the winding is more convenient and quick, the winding effect is better, the wire is reprocessed to an integrated structure after winding is completed, and the high-efficiency characteristic of the existing integrated spindle point machine is reserved.

Drawings

Fig. 1 is a schematic diagram showing the overall structure of a shaded pole motor disclosed in an embodiment of the utility model.

Fig. 2 is a schematic view showing the structure of the inside of the shaded pole motor retainer disclosed in the embodiment of the present utility model.

Fig. 3 is a schematic view showing a partial structure of a cage in a shaded pole motor disclosed in an embodiment of the present utility model.

Fig. 4 is a schematic view showing a partial structure of a claw pole in a shaded pole motor according to an embodiment of the present utility model.

Description of element reference numerals

1. A rotor; 2. claw poles; 3. an outer frame; 4. a first sub-stator; 5. a second sub-stator; 6. a shorting ring; 7. a retainer; 8. a winding framework; 9. and a connecting frame.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 3. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Example 1

Referring to fig. 1-2, the present utility model provides a shaded-pole motor, which comprises a rotor 1, four claw poles 2 separately arranged around the rotor 1, and an outer frame 3 surrounding the outer sides of the claw poles 2, wherein a wire package surrounds the outer sides of the claw poles 2, a retainer 7 is arranged around the side surfaces of the claw poles 2, the retainer 7 and the claw poles 2 are assembled to form an integral inner stator structure, and the integral inner stator structure is fixed to the inner side of the outer frame 3; the four claw poles 2 are opposite to each other, and a gap is arranged between any two adjacent claw poles 2.

The retainer 7 is additionally arranged between the claw poles 2 and the outer frame 3, the retainer 7 is used as an intermediate between the claw poles 2 and the outer frame 3, the winding difficulty of the integrated stator motor is reduced, and the efficiency of the motor is higher because the claw poles 2 are not connected. During winding, the claw pole 2 is not limited in the outer frame 3, the winding difficulty is low, and after winding is completed, the outer frame 3 is connected with the retainer 7 through riveting, so that the claw pole 2 is embedded in the outer frame 3.

The retainer 7 comprises a winding framework 8 sleeved on the claw pole 2 and a connecting frame 9 for connecting the four winding frameworks 8 into a whole, and the wire is wound on the winding framework 8.

First, four winding frameworks 8 are produced, each winding framework 8 corresponds to one claw pole 2, then the connecting frames 9 of the four winding frameworks 8 are connected through an injection molding process sound field, at the moment, the claw poles 2 are not required to be connected, gaps are reserved, an integral inner stator structure is formed through the retainer 7, the advantage of high efficiency of the integral stator motor is reserved, and the advantage of low winding difficulty of the split stator motor is absorbed.

A first sub-stator 4 and a second sub-stator 5 are arranged at one end of each claw pole 2 far away from the outer frame 3, one end of each first sub-stator 4 and one end of each second sub-stator 5 are fixedly connected to the claw pole 2, and the other end extends towards the opposite direction; the first sub-stator 4 is sleeved with a short circuit ring 6.

Specifically, a gap is provided between the first sub-stator 4 of each claw pole 2 and the second sub-stator 5 of its adjacent claw pole 2.

Furthermore, the outer side of the retainer 7 is fixed to the outer frame 3 by riveting.

Furthermore, the inner side of the outer frame 3 is rectangular, and the four claw poles 2 are in one-to-one correspondence with the four inner corners of the inner side of the outer frame 3.

Example 2

Referring to fig. 3, a shaded-pole motor includes a rotor 1, four claw poles 2 arranged around the rotor 1, and an outer frame 3 surrounding the outer sides of the claw poles 2, wherein a wire package surrounds the outer sides of the claw poles 2, a retainer 7 is arranged around the side surfaces of the claw poles 2, the retainer 7 and the claw poles 2 are assembled to form an integral inner stator structure, and the integral inner stator structure is fixed to the inner side of the outer frame 3; the four claw poles 2 are opposite to each other, and a gap is arranged between any two adjacent claw poles 2.

The retainer 7 is an integrally injection molded plastic frame, the retainer 7 comprises a winding framework 8 on the outer side and a connecting frame 9 connected with the winding framework 8 on the inner side, the winding framework 8 is sleeved outside the claw pole 2, and a coil is wound on the winding framework 8.

The present embodiment provides another solution for integrally injection molded holders 7, which is simpler to produce.

Example 3

The present embodiment differs from embodiments 1 and 2 in that the holder 7 is an epicyclic tooling.

In summary, the retainer 7 is additionally arranged between the claw poles 2 and the outer frame 3, the retainer 7 is used as an intermediate between the claw poles 2 and the outer frame 3, the winding difficulty of the integrated stator motor is reduced, and the efficiency of the motor is higher because the claw poles 2 are not connected, so that the defects of the existing integrated stator motor and the existing split stator motor are avoided, the advantages of the existing integrated stator motor and the existing split stator motor are integrated, and the unification of the winding difficulty and the motor efficiency is achieved. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The shaded pole motor comprises a rotor, four claw poles arranged around the rotor in a separated mode and an outer frame encircling the outer sides of the claw poles, wherein a wire bag is encircling the outer sides of the claw poles; the four claw poles are opposite to each other, and a gap is arranged between any two adjacent claw poles.

2. The shaded pole motor according to claim 1, wherein: the retainer comprises a winding framework sleeved on the claw poles and a connecting frame for connecting the four winding frameworks into a whole, and the wire is wound on the winding framework.

3. The shaded pole motor according to claim 1, wherein: the retainer is an integrally injection molded plastic frame, the retainer comprises a winding framework on the outer side and a connecting frame on the inner side, the winding framework is connected with the winding framework, the winding framework is sleeved outside the claw pole, and the wire is wrapped on the winding framework.

4. A shaded pole motor according to claim 2 or 3, characterised in that: a first sub-stator and a second sub-stator are arranged at one end of each claw pole far away from the outer frame, and one end of each first sub-stator and one end of each second sub-stator are fixedly connected to the claw pole, and the other end of each first sub-stator and the other end of each second sub-stator extend towards opposite directions; and a short circuit ring is sleeved on the first sub-stator.

5. The shaded pole motor according to claim 1, wherein: the claw pole is riveted with the outer frame.

6. The shaded pole motor according to claim 4, wherein: a gap is arranged between the first sub-stator of each claw pole and the second sub-stator of the adjacent claw pole.

7. The shaded pole motor according to claim 4, wherein: the inner side of the outer frame is rectangular, and the four claw poles are in one-to-one correspondence with the four inner corners of the inner side of the outer frame.