CN216489933U

CN216489933U - Novel punching sheet for motor

Info

Publication number: CN216489933U
Application number: CN202123140364.4U
Authority: CN
Inventors: 吴延兵
Original assignee: Guangdong Weimai Motor Co ltd
Current assignee: Guangdong Weimai Motor Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-10
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to the technical field of electric machine, specifically disclose a novel towards piece for motor, including the stator towards the piece and with stator towards piece matched with rotor punching, evenly distributed is provided with a plurality of stator outer groove in the periphery of stator towards the piece, evenly distributed is provided with a plurality of stator inner groovy in the stator towards the interior week of piece, set up a plurality of evenly distributed's closed slot on the rotor punching. The utility model discloses a set up the stator inner groovy and mutually support with the closed slot, balanced magnetic property to the demand of tooth portion, yoke portion, stator, rotor for the magnetic field distributes evenly rationally, thereby has improved the torque and the efficiency of motor, can improve the electromagnetic noise of motor greatly, and user experience is effectual.

Description

Novel punching sheet for motor

Technical Field

The utility model relates to the technical field of electric machines, in particular to a novel towards piece for motor.

Background

The motor is a device for converting electric power into mechanical power, and is composed of a rotor and a stator. There are many kinds of big axial flow fans in the market, and it is driven by the motor, therefore has higher requirement to the noise, efficiency, the temperature rise of motor. However, the electromagnetic noise of the motor in the prior art is large, the whole machine has large buzzing electromagnetic noise during operation, and the complaint rate of users on the noise reaches 90 percent in the market, so that the electromagnetic noise of the motor needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a novel towards piece for motor, mutually support through setting up stator inner groovy and closed slot, balanced magnetic performance to the demand of tooth portion, yoke portion, stator, rotor for magnetic field distribution is even reasonable, thereby has improved the torque and the efficiency of motor, can improve the electromagnetic noise of motor greatly, and user experience is effectual, has very big market competition.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a novel towards piece for motor, including the stator towards the piece and with stator towards piece matched with rotor punching, evenly distributed is provided with a plurality of stator outer groove on the periphery of stator punching, evenly distributed is provided with a plurality of stator inner groovy on the interior week of stator punching, set up a plurality of evenly distributed's closed slot on the rotor punching.

Preferably, the stator inner grooves are sequentially distributed on the inner periphery of the stator punching sheet in a circular ring shape, and the number of the stator inner grooves is 36; the distance between the inner grooves of each stator is equal.

Preferably, the stator inner groove is composed of a first semicircular edge, a first right-angle edge, a second right-angle edge, and a first groove edge and a second groove edge which are symmetrically arranged with each other, the first groove edge is respectively connected with one end of the first semicircular edge and the first right-angle edge, and the second groove edge is respectively connected with the other end of the first semicircular edge and the second right-angle edge.

Preferably, the closed slots are sequentially distributed on the periphery of the rotor sheet in a circular ring shape, and the number of the closed slots is 44; the distance between each closed slot is equal.

Preferably, the closed slot comprises an isosceles triangle part, a second semicircular edge, and a third slot edge and a fourth slot edge which are symmetrically arranged with each other, the third slot edge is connected with one end of the isosceles triangle part and one end of the second semicircular edge respectively, and the fourth slot edge is connected with the other end of the isosceles triangle part and the other end of the second semicircular edge respectively.

Preferably, the isosceles triangle part includes a first isosceles side and a second isosceles side, the first isosceles side is connected to one end of the second isosceles side and one end of the third trough side, respectively, and the other end of the second isosceles side is connected to one end of the fourth trough side.

Adopt above-mentioned technical scheme, the utility model provides a pair of a novel towards piece for motor has following beneficial effect: evenly distributed is provided with the outer recess of a plurality of stator in this novel stator punching in the piece in the periphery, evenly distributed is provided with a plurality of stator inner groovy on the stator punching's the interior week, the closed slot of a plurality of evenly distributed has been seted up on the rotor punching, through setting up stator inner groovy and closed slot and mutually supporting, magnetic performance is to tooth portion, yoke portion, the stator, the demand of rotor, make magnetic field distribution even reasonable, thereby the torque and the efficiency of motor have been improved, can improve the electromagnetic noise of motor greatly, through the flute profile's on stator punching and the rotor punching optimal design, the complete machine noise of motor has thoroughly been solved, user experience is effectual, the use amount of enameled wire has been reduced on the basis that the performance improves comprehensively, greatly reduced the manufacturing cost of motor, very big market competition has.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of a rotor sheet in the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

in the figure, 1-stator punching sheet, 2-rotor punching sheet, 3-stator outer groove, 4-stator inner groove, 5-closed groove, 6-first semicircle edge, 7-first right angle edge, 8-second right angle edge, 9-first groove edge, 10-second groove edge, 11-first isosceles edge, 12-second isosceles edge, 13-second semicircle edge, 14-third groove edge, and 15-fourth groove edge.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1-4, the novel punching sheet for a motor includes a stator punching sheet 1 and a rotor punching sheet 2 matched with the stator punching sheet 1, a plurality of stator outer grooves 3 are uniformly distributed on the periphery of the stator punching sheet 1, a plurality of stator inner grooves 4 are uniformly distributed on the inner periphery of the stator punching sheet 1, and a plurality of uniformly distributed closed slots 5 are formed on the rotor punching sheet 2. It can be understood that the rotor punching sheet 2 and the stator punching sheet 1 both adopt a circular ring design, and when in use, the stator punching sheet 1 is sleeved on the outer side of the rotor punching sheet 2; the number of the stator outer grooves 3 is 4, and the vertexes of the rectangular stator outer grooves are sequentially distributed on the outer side of the stator punching sheet 1; the diameter of the stator punching sheet 1 can be 210mm, and the diameter of the rotor punching sheet 2 can be 188.8 mm.

Specifically, the stator inner grooves 4 are sequentially distributed on the inner periphery of the stator lamination 1 in a circular ring shape, and the number of the stator inner grooves 4 is 36; the distance between 4 of the inner grooves of each stator is equal; the stator inner groove 4 consists of a first semicircular edge 6, a first right-angle edge 7, a second right-angle edge 8, and a first groove edge 9 and a second groove edge 10 which are symmetrically arranged with each other, wherein the first groove edge 9 is respectively connected with one end of the first semicircular edge 6 and the first right-angle edge 7, and the second groove edge 10 is respectively connected with the other end of the first semicircular edge 6 and the second right-angle edge 8; the closed slots 5 are sequentially distributed on the periphery of the rotor sheet 2 in a circular ring shape, and the number of the closed slots is 44; the distance between each closed slot 5 is equal; the closed slot 5 comprises an isosceles triangle part, a second semicircular edge 13, a third slot edge 14 and a fourth slot edge 15 which are symmetrically arranged, wherein the third slot edge 14 is respectively connected with one end of the isosceles triangle part and one end of the second semicircular edge 13, and the fourth slot edge 15 is respectively connected with the other end of the isosceles triangle part and the other end of the second semicircular edge 13. As can be understood, the opening of the stator inner groove 4 faces to the center of the stator lamination 1, and the isosceles triangle part of the closed groove 5 faces to the outer side of the rotor lamination 2; the lengths of the first and

second groove sides

9 and 10 may be 15mm, and the lengths of the third and

fourth groove sides

14 and 15 may be 11 mm.

Specifically, the isosceles triangle includes a first isosceles side 11 and a second isosceles side 12, the first isosceles side 11 is connected to one end of the second isosceles side 12 and one end of the third trough side 14, respectively, and the other end of the second isosceles side 12 is connected to one end of the fourth trough side 15. It will be appreciated that the first isosceles side 11 and the second isosceles side 12 are symmetrically disposed and have equal lengths.

The utility model has the advantages that the design is reasonable, the structure is unique, the stator inner groove 4 is optimally designed by arranging the stator inner groove 4 and the closed groove 5 to be matched with each other, the magnetic field is uniformly distributed, and the stator inner groove 4 can adopt an aluminum wire enameled wire for winding; the closed slot type of the rotor punching sheet 2 is optimally designed, and the stator inner groove 4 is reasonably matched with the closed slot 5 on the rotor punching sheet 2, so that the electromagnetic noise of the motor is improved, the starting torque and the rated efficiency of the motor can be improved, and the temperature rise can be reduced; the requirements of magnetic performance on the tooth part, the yoke part, the stator and the rotor are balanced, and the magnetic field is uniformly and reasonably distributed; the noise of a single machine and the whole machine is thoroughly solved, and the complaint rate of the market due to the noise is reduced to 0; meanwhile, the torque and the efficiency of the motor are improved, the novel punching sheet can be applied to a large axial flow fan, and the output power of the motor can reach 1000 + 3000 watts; the usage amount of the enameled wire is reduced on the basis of overall improvement of performance, the design cost is reduced, great market competitiveness is achieved, and market benefits are high.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a novel towards piece for motor which characterized in that: the stator punching sheet comprises a stator punching sheet and a rotor punching sheet matched with the stator punching sheet, wherein a plurality of stator outer grooves are uniformly distributed on the periphery of the stator punching sheet, a plurality of stator inner grooves are uniformly distributed on the inner periphery of the stator punching sheet, and a plurality of uniformly distributed closed grooves are formed in the rotor punching sheet.

2. The novel punching sheet for the motor as claimed in claim 1, characterized in that: the stator inner grooves are sequentially distributed on the inner periphery of the stator punching sheet in a circular ring shape, and the number of the stator inner grooves is 36; the distance between the inner grooves of each stator is equal.

3. The novel punching sheet for the motor as claimed in claim 1, characterized in that: the stator inner groove is composed of a first semicircular edge, a first right-angle edge, a second right-angle edge, a first groove edge and a second groove edge, wherein the first groove edge and the second groove edge are symmetrically arranged, the first groove edge is connected with one end of the first semicircular edge and the first right-angle edge respectively, and the second groove edge is connected with the other end of the first semicircular edge and the second right-angle edge respectively.

4. The novel punching sheet for the motor as claimed in claim 1, characterized in that: the closed slots are sequentially distributed on the periphery of the rotor punching sheet in an annular shape, and the number of the closed slots is 44; the distance between each closed slot is equal.

5. The novel punching sheet for the motor as claimed in claim 1, characterized in that: the closed slot is composed of an isosceles triangle part, a second semicircular edge, a third slot edge and a fourth slot edge, wherein the third slot edge and the fourth slot edge are symmetrically arranged with each other, the third slot edge is respectively connected with one end of the isosceles triangle part and one end of the second semicircular edge, and the fourth slot edge is respectively connected with the other end of the isosceles triangle part and the other end of the second semicircular edge.

6. The novel punching sheet for the motor as claimed in claim 5, wherein: the isosceles triangular part comprises a first isosceles side and a second isosceles side, the first isosceles side is connected with one end of the second isosceles side and one end of the third groove side respectively, and the other end of the second isosceles side is connected with one end of the fourth groove side.