CN218633487U

CN218633487U - High-efficiency punching device for motor rotor

Info

Publication number: CN218633487U
Application number: CN202222766034.4U
Authority: CN
Inventors: 鲍祥翔; 杨继苗; 朱瑞诗
Original assignee: Zhejiang Zhonglong Electromotor Stock Co ltd
Current assignee: Zhejiang Zhonglong Electromotor Stock Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-03-14
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a high-efficient towards piece device of electric motor rotor, concretely relates to electric motor rotor technical field to current rotor punching in the use, because the structure towards piece and winding tooth is comparatively simple and easy usually, results in the joint strength low between the piece, and the winding homogeneity of coil and punching piece is poor, the problem that joint strength is low, now proposes following scheme, and it includes the rotor punching, the rotor is seted up the spacing hole that is coaxial setting towards the piece, the lateral wall fixed mounting of rotor punching has a plurality of winding tooth pieces that are array distribution, and is a plurality of winding tooth piece is the integral type setting with the rotor punching piece, the cross-section of winding tooth piece is the setting of T type, the vertical section left and right sides of winding tooth piece all is provided with reason line tooth's socket. The utility model discloses novel structure has improved coil winding homogeneity and stability on the rotor punching, has reduced rotor inertia, has improved the joint strength between the punching, suitable popularization.

Description

High-efficiency punching device for motor rotor

Technical Field

The utility model relates to an electric motor rotor technical field especially relates to electric motor rotor high efficiency is towards piece device.

Background

The motor consists of a rotor and a stator, and is a conversion device for realizing electric energy and mechanical energy and electric energy. The motor is a motor rotor which cuts a rotating magnetic field of a stator to generate induced electromotive force and current and form electromagnetic torque to rotate a motor, wherein the motor rotor is a rotating part in the motor.

For example, chinese patent with application number CN201720497744.8, the specific contents are: the utility model provides a rotor punching, its characterized in that is including towards the piece body, have annular yoke portion of circle and be located the inboard shaft hole of yoke portion towards the piece body, certainly yoke portion follows a plurality of teeth that extend towards the radial circumferencial direction of piece body are formed with the wire winding tooth's socket that is used for twining the rotor coil between the adjacent tooth, just wire winding tooth's socket equipartition in towards piece body periphery, the radial outer edge indent of tooth is formed with a plurality of supplementary grooves, and every tooth in the outer fringe supplementary groove quantity be the even number, supplementary groove has two lateral walls and is located the inner wall between two lateral walls, supplementary groove runs through towards two terminal surfaces of piece body, the defect of its existence is: the existing rotor punching sheet is in a use process, and the structure of the punching sheet and the structure of the winding teeth are generally simple and easy, so that the connection strength between the punching sheets is low, the winding uniformity of a coil and the punching sheet is poor, and the connection strength is low.

Therefore, in order to solve the problems, a high-efficiency punching device for the motor rotor is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-efficient towards piece device of electric motor rotor has solved current rotor punching in the use, because the structure towards piece and winding tooth is comparatively simple and easy usually, leads to the joint strength low between the piece, and the coil is poor with the winding homogeneity towards the piece, problem that joint strength is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

high-efficient towards piece device of electric motor rotor, including the rotor punching, set up the spacing hole that is coaxial setting on the rotor punching, the lateral wall fixed mounting of rotor punching has a plurality of wire winding tooth pieces that are the array distribution, and is a plurality of wire winding tooth piece is the integral type setting with the rotor punching, the cross-section of wire winding tooth piece is T type setting, the vertical section left and right sides of wire winding tooth piece all is provided with reason line tooth's socket, the both ends of rotor punching are provided with limit structure.

The wire arranging tooth grooves of the vertical section of the winding tooth block not only improve the winding uniformity of the coil on the rotor punching sheet, but also improve the stability of the coil in the using process.

Preferably, a plurality of key grooves distributed in an array are formed in the inner wall of the limiting hole of the rotor sheet, and the key grooves in the inner wall of the limiting hole are matched with keys on the side wall of the rotating shaft to form an auxiliary positioning structure for the rotor sheet.

Preferably, a fillet is arranged at the joint of the horizontal section and the vertical section of the winding tooth block, and the fillet at the joint of the horizontal section and the vertical section of the winding tooth block reduces the local pressure on the coil.

Preferably, it is a plurality of the threading groove has all been seted up on the horizontal segment top of wire winding tooth piece, the radial cross-section of the inner wall in threading groove is the arc setting, has the limiting displacement to the coil, and at this rotor punching rotation in-process, the threading groove has the ventilation, supplementary radiating effect.

Preferably, one end of the rotor punching sheet is provided with a plurality of ventilation holes distributed in an array manner, so that the ventilation holes have the functions of ventilation, auxiliary heat dissipation and weight reduction of the motor rotor, and the function of reducing the inertia of the rotor during rotation is achieved.

Preferably, limit structure includes a plurality of spacing projections, spacing projection fixed mounting is in the one end of rotor punching, and is a plurality of spacing projection is circumference array distribution, a plurality of spacing recesses that are array distribution are seted up to the one end that spacing projection was kept away from to the rotor punching, spacing recess is the slip with spacing projection and cup joints the setting, and spacing recess and spacing projection cooperation are spacing to two adjacent rotor punching, have improved the joint strength between two adjacent rotor punching.

Preferably, it is a plurality of spacing recess is interval alternate distribution with a plurality of ventilation holes, and is a plurality of the fillet has all been seted up to the open end of spacing recess, and the fillet improves the butt joint efficiency between spacing projection and the spacing recess.

The utility model has the advantages that:

1. through the structural layout of the winding tooth block matching and arranging tooth grooves, the rotating shaft penetrates through the limiting hole of the rotor punching sheet, the key groove of the inner wall of the limiting hole is matched with the key of the side wall of the rotating shaft to have an auxiliary positioning structure for the rotor punching sheet, the fillet of the joint of the horizontal section and the vertical section of the winding tooth block reduces the local pressure on the coil, and the wire arranging tooth grooves of the vertical section of the winding tooth block not only improve the winding uniformity of the coil on the rotor punching sheet, but also improve the stability of the coil in the using process.

2. Through the structural layout to limit structure cooperation ventilation hole, a plurality of ventilation holes that are the array distribution on the rotor punching not only play the supplementary radiating effect of ventilation at this rotor punching rotation in-process, still have the weight that subtracts who is used for electric motor rotor to reduce the effect of the inertia when the rotor rotates, spacing recess carries on spacingly with the cooperation of spacing projection to two adjacent rotor punching, has improved the joint strength between two adjacent rotor punching.

To sum up, the utility model provides high coil winding homogeneity and stability on the rotor punching have reduced rotor inertia, have improved the joint strength towards the piece within a definite time, have solved current rotor punching in the use, because the structure towards piece and winding tooth is comparatively simple and easy usually, lead to connecting strength low towards the piece between, and the coil is poor with the winding homogeneity towards the piece, problem that joint strength is low, suitable popularization.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a view showing an installation structure of the vent holes according to the present invention;

fig. 3 is a mounting structure view of the key groove of the present invention;

FIG. 4 is a view showing an installation structure of the winding tooth block of the present invention;

fig. 5 is a cross-sectional view of the present invention.

Reference numbers in the figures: 1. rotor punching sheets; 2. a limiting hole; 3. a keyway; 4. winding a gear block; 5. a wire arranging tooth socket; 6. a threading slot; 7. a vent hole; 8. a limiting convex column; 9. and a limiting groove.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the specification attached drawings 1-5, the utility model provides a high-efficient towards piece device of electric motor rotor, including rotor towards piece 1, set up the spacing hole 2 that is coaxial setting on rotor towards piece 1, the space that the rotor towards piece 1 was passed in the pivot has been reserved, a plurality of keyway 3 that are the array distribution have been seted up towards 2 inner walls in the spacing hole of piece 1 to the rotor, the key of cooperation pivot lateral wall, rotor towards piece 1 assistance-localization real-time structure has been had, there are a plurality of wire winding tooth pieces 4 that are the array distribution at rotor towards piece 1's lateral wall fixed mounting, a plurality of wire winding tooth pieces 4 are the integral type setting with rotor towards piece 1, the cross-section of wire winding tooth piece 4 is the T type setting, wire winding tooth piece 4 has the effect of winding coil, round angle has been seted up with the junction of vertical section at wire winding tooth piece 4's horizontal segment, reduce the local pressure to the coil of the horizontal segment of wire winding tooth piece 4 and the junction of vertical section, the life of extension coil, wire winding tooth piece 4's vertical section left and right sides all is provided with reason line 5, improve coil winding process's stability, the radial heat dissipation effect of wire winding tooth groove has been seted up on the radial 6, the top of the radial wire winding tooth section of this rotor towards piece, the effect of 6.

Referring to the attached drawings 1-2 and fig. 5 of the specification, a plurality of ventilation holes 7 distributed in an array are formed in one end of a rotor punching sheet 1, in the rotation process of the rotor punching sheet 1, the ventilation holes 7 have the function of ventilation auxiliary heat dissipation, the ventilation holes 7 also have the function of weight reduction for a motor rotor so as to reduce the inertia of the rotor during rotation, limiting structures are arranged at two ends of the rotor punching sheet 1 and comprise a plurality of limiting convex columns 8, the limiting convex columns 8 are fixedly installed at one end of the rotor punching sheet 1 and distributed in a circumferential array mode, limiting functions are achieved, a plurality of limiting grooves 9 distributed in an array mode are formed in one end, away from the limiting convex columns 8, of the rotor punching sheet 1, the limiting grooves 9 and the limiting convex columns 8 are in sliding sleeve connection, the limiting grooves 9 and the limiting convex columns 8 are distributed alternately at intervals, the limiting grooves 9 and the ventilation holes 7 are matched with the limiting convex columns 8 so as to limit two adjacent rotor punching sheets 1, the connection strength between the two adjacent rotor punching sheets 1 is improved, fillets are formed in the open ends of the plurality of the limiting grooves 9, and the fillets are formed in the abutting joint efficiency of the limiting convex columns 8 and the limiting grooves 9 is improved.

The working principle is as follows: the utility model discloses when using, at first pass rotor towards the spacing hole 2 of 1 with the pivot, the key of 3 cooperation pivot lateral walls of keyway of 2 inner walls in spacing hole has had towards rotor towards 1 assistance-localization real-time structures, the fillet of the junction of the horizontal segment of wire winding tooth piece 4 and vertical section reduces the local pressure to the coil, the reason line tooth's socket 5 of the vertical section of wire winding tooth piece 4, not only improved the homogeneity of coil winding process, the stability of coil use has still been improved, a plurality of ventilation holes 7 that are the array distribution on rotor towards 1 are at this rotor towards 1 rotation in-process, not only play ventilation auxiliary heat dissipation's effect, still have the heavy of subtracting towards the piece that is used for electric motor rotor, with the effect of inertia when reducing the rotor rotation, spacing recess 9 carries on spacingly with spacing projection 8 cooperation to two adjacent rotor towards 1, the joint strength between two adjacent rotor towards 1 has been improved.

And finally: the foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention, and any modifications, equivalent alterations, improvements and the like made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. High-efficient towards piece device of motor rotor, including rotor punching (1), its characterized in that, set up spacing hole (2) that are coaxial setting on rotor punching (1), the lateral wall fixed mounting of rotor punching (1) has a plurality of wire winding tooth piece (4) that are the array distribution, and is a plurality of wire winding tooth piece (4) are the integral type setting with rotor punching (1), the cross-section of wire winding tooth piece (4) is the T type setting, the vertical section left and right sides of wire winding tooth piece (4) all is provided with reason line tooth's socket (5), the both ends of rotor punching (1) are provided with limit structure.

2. The efficient punching device for the motor rotor as claimed in claim 1, wherein a plurality of key grooves (3) distributed in an array are formed in the inner wall of the limiting hole (2) of the rotor punching (1).

3. The efficient punching device for the motor rotor as recited in claim 1, wherein a fillet is formed at the joint of the horizontal section and the vertical section of the winding tooth block (4).

4. The efficient punching device for the motor rotor as claimed in claim 1, wherein threading grooves (6) are formed in the top ends of the horizontal sections of the plurality of winding tooth blocks (4), and the radial cross sections of the inner walls of the threading grooves (6) are arranged in an arc shape.

5. The efficient punching device of the motor rotor as claimed in claim 1, wherein one end of the rotor punching (1) is provided with a plurality of ventilation holes (7) distributed in an array.

6. The motor rotor high-efficiency punching device according to claim 5, wherein the limiting structure includes a plurality of limiting protruding columns (8), the limiting protruding columns (8) are fixedly installed at one end of the rotor punching sheet (1), the limiting protruding columns (8) are distributed in a circumferential array, a plurality of limiting grooves (9) are formed in one end, away from the limiting protruding columns (8), of the rotor punching sheet (1), and the limiting grooves (9) are slidably sleeved with the limiting protruding columns (8).

7. The efficient punching device for the motor rotor as claimed in claim 6, wherein the plurality of limiting grooves (9) and the plurality of vent holes (7) are alternately distributed at intervals, and round corners are formed at the open ends of the plurality of limiting grooves (9).