CN214255891U

CN214255891U - Rotor and stator punching sheet of single-phase series excited motor

Info

Publication number: CN214255891U
Application number: CN202120157681.8U
Authority: CN
Inventors: 沙凯; 黄建平
Original assignee: Jiangsu Dayi M&e Tools Co ltd
Current assignee: Jiangsu Dartek Technology Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-21
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a single-phase series excited machine rotor, stator punching, including stator punching and rotor punching, the width of magnetic pole is 13-14mm, the height of magnetic pole is 5-6mm, the pole arc angle of polar arc is 125-127, the yoke width is 4.2-4.8mm, the length of stator punching is 45-47mm, the width of stator punching is 39-41mm, the stator punching is 47-49mm in the external diameter of circular arc convex surface department, the external diameter of rotor punching is 27.5-29.5mm, the quantity of rotor groove is 12, the width of notch is 1.7-1.9mm, the height of notch is 0.7-0.9mm, the width of rotor tooth is 1.6-1.8 mm. The stator punching sheet has the advantages that the outer diameter of the stator punching sheet becomes fine, the machine feels comfortable, fatigue is not felt during operation, meanwhile, the power is high, the working efficiency is improved, sparks are small during the operation of the machine, and the service life of the machine is greatly prolonged.

Description

Rotor and stator punching sheet of single-phase series excited motor

Technical Field

The utility model relates to the technical field of electric machines, concretely relates to single-phase series excited machine rotor, stator towards piece.

Background

The single-phase series excited motor in the prior art generally has the problems of low material utilization rate, large reversing spark, high noise, low power, large outer diameter, poor hand feeling of the machine and the like.

The stator punching sheet of the existing single-phase series excited motor is mainly of a shallow groove type and a half-deep groove type. The pole body of the stator punching sheet is wider, the potential of the punching sheet still cannot be exerted, and the unit weight output is still not ideal. Because the magnetic density at the pole body of the stator is lower, the line embedding groove has a room for approaching the center of the pole body. The yoke height cannot be made to an ideal height. Therefore, the yoke is easy to saturate in magnetic density, and the outer diameter of the rotor cannot be in an ideal size. The proportion of the rotor and the stator is small. The load of the rotor line is also increased, the heat generated by the rotor is increased, and the service life of the motor is shortened.

In the past, because the rotor reversing spark cannot be suppressed, the pole arc coefficients of the stator punching sheets are all made to be smaller, the magnetic conduction area is small, and therefore larger torque cannot be generated.

The existing stator core of single-phase series excitation is of a two-half structure and is a shallow slot stator, the stator is separately embedded into the stator core after an enameled wire is wound during processing, the processing technology is complex, the production efficiency is low, and the production qualification rate is difficult to guarantee manually.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a single-phase series excited machine rotor, stator towards the piece, its external diameter that can make the stator towards the piece becomes fine, and the machine feels comfortable, does not feel tired during the operation, and power is big simultaneously, and work efficiency improves, and the machine during operation spark is little, has prolonged the life of machine greatly.

In order to solve the technical problem, the utility model provides a single-phase series excited machine rotor, stator punching, including stator punching and rotor punching, the stator punching includes pole body portion and yoke portion, pole body portion sets up on yoke portion, and the connecting portion constitutes the magnetic pole, the rotor punching is coaxial to be set up in pole body portion, the width of magnetic pole is 13-14mm, the height of magnetic pole is 5-6mm, pole body portion includes pole shoe and pole tip, the intrados of pole shoe and pole tip is the polar arc, the polar arc angle of polar arc is 125 and 127 °, the biggest yoke width of yoke portion is 4.2-4.8mm, the stator punching has seted up convex breach in the intermediate position department of the both sides surface on width direction, has seted up the flat side in the intermediate position department of the both sides surface on length direction the cambered surface of the stator punching of breach both sides is provided with the circular arc convex surface, the length of the stator punching sheet is 45-47mm, the width of the stator punching sheet is 39-41mm, the outer diameter of the stator punching sheet at the arc convex surface is 47-49mm, the outer diameter of the rotor punching sheet is 27.5-29.5mm, the rotor punching sheet is provided with rotor grooves which are axially penetrated along the edge circumference array, the number of the rotor grooves is 12, each rotor groove is provided with a notch, the rotor punching sheet between two adjacent rotor grooves forms a rotor tooth, the width of each notch is 1.7-1.9mm, the height of each notch is 0.7-0.9mm, and the width of each rotor tooth is 1.6-1.8 mm.

Preferably, the ratio of the outer diameter of the rotor punching sheet to the outer diameter of the stator punching sheet is 0.585-0.620.

Preferably, the ratio of the outer diameter of the rotor punching sheet to the outer diameter of the stator punching sheet is 0.594.

Preferably, the stator punching sheet and the rotor punching sheet are of an integrated structure.

Preferably, the stator punching sheet and the rotor punching sheet are both silicon steel sheets.

Preferably, the pole shoe angle β is 126 °, the width of the magnetic pole is 13.3mm, the height of the magnetic pole is 5.45mm, and the yoke width of the yoke portion is 4.6 mm.

Preferably, the outer diameter of the stator punching sheet is 48mm, the length of the stator punching sheet is 46.3mm, and the width of the stator punching sheet is 40.4 mm.

Preferably, the outer diameter of the rotor punching sheet is 28.5 mm.

Preferably, the width of the notch is 1.8mm, the tooth width of the rotor tooth is 1.7mm, and the height of the notch is 0.8 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a design of optimization makes the external diameter of stator punching become fine, and the machine is felt comfortablely, does not feel tired during the operation, and power is big simultaneously, and work efficiency improves, and the machine during operation spark is little, has prolonged the life of machine greatly. The stator punching sheet fully considers the cutting property, the outer contour is of a four-side flat cutting structure, and V-shaped notches are formed in the middle positions of the outer surfaces of the left side and the right side. The arc surface of the stator punching sheet is provided with four arc convex surfaces protruding in an arc shape, so that the width of the yoke is increased, the magnetic flux density of a stator magnetic yoke can be reduced, the magnetic loss is reduced, and the output power and the motor efficiency are improved; meanwhile, the leftover materials remained when the series excited motor punching sheet is punched are the least, and the utilization rate of the materials is improved. The stator punching sheet of the deep groove type increases the sectional area of the groove type, shortens the width of a magnetic pole, saves the using amount of copper wires, reduces copper consumption and cost, improves the performance parameters of the motor, and exerts stronger advantages. Because the stator punching sheet is an extra-deep groove, the width of the pole body is shortened, the using amount of copper wires can be saved, and the copper consumption and the cost are reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a stator punching sheet of the present invention;

fig. 2 is the structure schematic diagram of the rotor sheet of the present invention.

The stator punching sheet comprises 1-a stator punching sheet, 11-a pole body part, 12-a yoke part, 13-a pole shoe, 15-an arc convex surface, 16-a flat square, 17-a pole arc, 19-a notch, 2-a rotor punching sheet, 20-a rotor groove, 21-a notch and 23-a rotor tooth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Examples

Referring to fig. 1-2, the utility model discloses a single-phase series excited machine rotor, stator towards piece, including stator towards piece 1 and rotor towards piece 2. The stator punching sheet 1 includes a pole body portion 11 and a yoke portion 12. The body part 11 is provided on the yoke part 12, and the connecting part constitutes a magnetic pole. The rotor punching sheet 2 is coaxially arranged in the pole body part 11. The width bp of the magnetic pole is 13-14 mm. The height hp of the magnetic pole is 5-6 mm. The pole body portion includes a pole shoe 13 and a pole tip. The pole shoe 13 and the intrados of the pole tip are pole arcs 17. The pole arc angle β of pole arc 17 is 125-127 °. The maximum yoke width bc of the yoke portion 12 is 4.2-4.8 mm. The stator punching sheet 1 is provided with an arc-shaped notch 19 at the middle position of the outer surfaces of the two sides in the width direction, and is provided with a flat square 16 at the middle position of the outer surfaces of the two sides in the length direction. Arc convex surfaces 15 are arranged on the arc surfaces of the stator punching sheets 1 on two sides of the notch 19. The length B1 of the stator punching sheet 1 is 45-47mm, the width B2 of the stator punching sheet 1 is 39-41mm, and the outer diameter D1 of the stator punching sheet 1 at the arc convex surface 15 is 47-49 mm. The outer diameter D2 of the rotor punching sheet 2 is 27.5-29.5 mm. The rotor sheet 2 is provided with rotor slots 20 axially penetrating along the peripheral circumference array of the edge. The number of rotor slots 20 is 12. A notch 21 is opened in each rotor slot 20. The rotor sheet 2 between two adjacent rotor slots 20 forms a rotor tooth 23. The width b0 of the slot 21 is 1.7-1.9 mm. The height of the notch 21 is 0.7-0.9 mm. The width t of the rotor teeth 23 is 1.6-1.8 mm. Above optimized design, the stator punching sheet 1 has fine outer diameter, comfortable machine hand feeling, no fatigue during operation, high power, high work efficiency, small spark during machine operation and long service life. The stator punching sheet 1 fully considers the cutting performance, the outer contour is of a four-side flat cutting structure, and V-shaped notches 19 are formed in the middle positions of the outer surfaces of the left side and the right side. The arc surface of the stator punching sheet 1 is provided with four arc convex surfaces 15 which are convex, so that the width of the yoke is increased, the magnetic flux density of a stator magnetic yoke can be reduced, the magnetic loss is reduced, and the output power and the motor efficiency are improved; meanwhile, the leftover materials remained when the series excited motor punching sheet is punched are the least, and the utilization rate of the materials is improved. The stator punching sheet 1 in the deep groove type increases the sectional area of the groove type, shortens the width of a magnetic pole, saves the using amount of copper wires, reduces copper consumption and cost, improves the performance parameters of a motor, and exerts stronger advantages. Because the stator punching sheet 1 is an extra-deep groove, the width of a pole body is shortened, the using amount of copper wires can be saved, and the copper consumption and the cost are reduced.

As the further improvement of the utility model, the ratio of the outer diameter D2 of the rotor punching sheet 2 to the outer diameter D1 of the stator punching sheet 1 is 0.585-0.620. Preferably, the ratio of the outer diameter D2 of the rotor lamination 2 to the outer diameter D1 of the stator lamination 1 is 0.594.

The stator punching sheet 1 and the rotor punching sheet 2 are of an integrated structure. The automatic winding machine is beneficial to improving the production efficiency of the stator, the stator in the form is finished by simultaneously winding the wires on two sides of the automatic winding machine during processing, the trouble caused by manual operation is eliminated, and the qualification rate of finished products is improved.

The stator punching sheet 1 and the rotor punching sheet 2 are both silicon steel sheets.

In some preferred embodiments of the present invention, the pole shoe angle β is 126 °. The width bp of the pole is 13.3 mm. The height hp of the magnetic pole is 5.45 mm. The yoke width of the yoke portion 12 is 4.6 mm. The outer diameter D1 of stator punching sheet 1 is 48 mm. The length B1 of the stator punching sheet 1 is 46.3 mm. The width B2 of the stator lamination 1 is 40.4 mm.

In some preferred embodiments of the present invention, the outer diameter D2 of the rotor punching sheet 2 is 28.5 mm. The width b0 of the slot 21 is 1.8 mm. The tooth width t of the rotor teeth 21 is 1.7 mm. The height h0 of the slot 21 is 0.8 mm.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The single-phase series motor rotor and stator punching sheet is characterized by comprising a stator punching sheet and a rotor punching sheet, wherein the stator punching sheet comprises a pole body part and a magnetic yoke part, the pole body part is arranged on the magnetic yoke part, the connecting part forms a magnetic pole, the rotor punching sheet is coaxially arranged in the pole body part, the width of the magnetic pole is 13-14mm, the height of the magnetic pole is 5-6mm, the pole body part comprises a pole shoe and a pole tip, the inner arc surfaces of the pole shoe and the pole tip are pole arcs, the pole arc angle of the pole arc is 125-127 degrees, the maximum yoke width of the magnetic yoke part is 4.2-4.8mm, the middle position of the outer surfaces of the two sides of the stator punching sheet in the width direction is provided with an arc-shaped notch, the middle position of the outer surfaces of the two sides of the stator punching sheet in the length direction is provided with a flat square, and arc convex surfaces are arranged on the arc surfaces of the stators on the two sides of the notch, the length of the stator punching sheet is 45-47mm, the width of the stator punching sheet is 39-41mm, the outer diameter of the stator punching sheet at the arc convex surface is 47-49mm, the outer diameter of the rotor punching sheet is 27.5-29.5mm, the rotor punching sheet is provided with rotor grooves which are axially penetrated along the edge circumference array, the number of the rotor grooves is 12, each rotor groove is provided with a notch, the rotor punching sheet between two adjacent rotor grooves forms a rotor tooth, the width of each notch is 1.7-1.9mm, the height of each notch is 0.7-0.9mm, and the width of each rotor tooth is 1.6-1.8 mm.

2. The rotor and stator lamination of a single-phase series-excited machine according to claim 1, wherein the ratio of the outer diameter of the rotor lamination to the outer diameter of the stator lamination is 0.585-0.620.

3. The rotor and stator laminations of the single-phase series motor of claim 2, wherein the ratio of the outer diameter of the rotor laminations to the outer diameter of the stator laminations is 0.594.

4. The rotor and stator laminations of the single-phase series-excited machine of claim 1, wherein the stator laminations and the rotor laminations are of an integral structure.

5. The rotor and stator punching of the single-phase series-excited motor of claim 4, wherein the stator punching and the rotor punching are both silicon steel sheets.

6. The single-phase series motor rotor and stator punching sheet of claim 1, wherein the pole arc angle β is 126 °, the width of the magnetic pole is 13.3mm, the height of the magnetic pole is 5.45mm, and the yoke width of the yoke portion is 4.6 mm.

7. The rotor and stator punching sheet of the single-phase series motor of claim 6, wherein the outer diameter of the stator punching sheet is 48mm, the length of the stator punching sheet is 46.3mm, and the width of the stator punching sheet is 40.4 mm.

8. The rotor and stator lamination of a single-phase series motor as recited in claim 1, wherein the outer diameter of the rotor lamination is 28.5 mm.

9. The single-phase series motor rotor and stator punching sheet of claim 8, wherein the width of the notch is 1.8mm, the tooth width of the rotor tooth is 1.7mm, and the height of the notch is 0.8 mm.