Stator punching sheet applied in motor

Abstract

The utility model discloses a stator punching sheet applied in a motor, relates to the technical field of stators, and aims to solve the problem that when the conventional stator punching sheet is used, the connection is not compact and shakes along with the increase of service time. The first grooves are formed in the two sides of the outer wall of the stator iron core body, the two first grooves are formed, the two sides of the two first grooves are each provided with an iron core protruding point, the two sets of iron core protruding points are arranged, the two sets of iron core protruding points and the first grooves are integrally formed, and the two sets of iron core protruding points and the first grooves are integrally formed. The installation inner cavities are installed on the outer side of a circle of the stator punching mechanism, the number of the installation inner cavities is multiple, unequal air gaps are formed between the installation inner cavities and the outer side of the outer wall of the stator punching mechanism, and multiple unequal air gaps are arranged. And the plurality of unequal air gaps and the stator punching mechanism are integrally formed.

Description

Technical Field

[0001] The utility model relates to the technical field of stators, in particular to a stator punching sheet applied to a motor. Background Technique

[0002] The generator stator is the stationary part of the motor. Its main components mainly include an iron core, a frame, coils and other components. The generator stator is one of the key components of the generator. For high-voltage and large-capacity synchronous motors, a rotating magnetic pole structure is adopted. Since the capacity and voltage of the excitation part are often much smaller than those of the armature, the armature is installed on the stator and the main magnetic poles are installed on the rotor. The main function of the generator stator is to cut the magnetic field in the rotating magnetic field formed in the rotor to generate voltage.

[0003] For example, the publication number is 200620083450.2, and the Chinese authorized patent name is (Stator and Rotor Punching Sheets of an Electric Motor), including: a magnetic yoke, an inner hole located in the center of the magnetic yoke, and slot-embedding grooves evenly distributed on the inner hole or the outer circumference. The top of the slot-embedding groove of the stator punching sheet is circular, and the slot opening is semi-closed. Both the stator and rotor punching sheets are symmetric about the center. The slot height H and the top width h of each two slot-embedding grooves in the middle of the four corners of the stator punching sheet are greater than the other slot-embedding grooves. The shapes and sizes of the total 8 slot-embedding grooves in the middle of the four corners are the same. The distance b between the outer arc of the two slot-embedding grooves in the middle of each corner and the inner arc of the fixing hole or semi-hole is the same as the width a of the four-side yoke part. The top of the slot-embedding groove of the rotor punching sheet is an equilateral triangle, and the bottom of the slot is circular. The magnetic circuits of its stator and rotor punching sheets are more uniform, the iron loss and hysteresis loss are reduced, and the motor efficiency is improved. It is beneficial to adopt sinusoidal winding distribution embedding and the formation of a sinusoidal magnetic potential waveform, and is beneficial to improving the starting performance and operating performance of the motor. It can be widely applied to various electric motors.

[0004] However, when the existing stator punching sheet is in use, there is a problem that after a long time of use, the connection is not compact and shakes; therefore, it does not meet the existing requirements, and for this reason, we propose a stator punching sheet applied to a motor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stator punching sheet applied to a motor to solve the problem that when the existing stator punching sheet is in use, after a long time of use, the connection is not compact and shakes as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a stator punching sheet applied to a motor, including: a stator iron core main body and a stator punching sheet mechanism, and the stator punching sheet mechanism is installed inside the stator iron core main body;

[0007] It further includes:

[0008] The first grooves are installed on both sides of the outer wall of the stator core body. There are two first grooves, and iron core protruding points are provided on both sides of the two first grooves. There are two groups of iron core protruding points, and the two groups of iron core protruding points and the first grooves are integrally formed with the first grooves;

[0009] The installation inner cavities are installed on the outer side of one circle of the stator punching mechanism. There are several installation inner cavities. There are unequal air gaps between the several installation inner cavities and the outer side of the outer wall of the stator punching mechanism. There are several unequal air gaps, and the several unequal air gaps are integrally formed with the stator punching mechanism.

[0010] Preferably, second grooves are provided on both sides of the inner wall of the stator punching mechanism. There are two groups of second grooves, and the two groups of second grooves are integrally formed with the inner wall of the stator punching mechanism. A stator punching protruding point is provided between the two groups of second grooves. There are two stator punching protruding points, and the two stator punching protruding points are integrally formed with the inner wall of the stator punching mechanism.

[0011] Preferably, installation connection holes are provided on the upper end surface of the stator punching mechanism. There are several installation connection holes, and the several installation connection holes are integrally formed with the stator punching mechanism.

[0012] Preferably, installation iron sheets are provided inside the several installation inner cavities. There are several installation iron sheets. Third grooves are provided on one side of both ends of the inner wall of the several installation inner cavities. Fourth grooves are provided on one side of the inner wall of the several installation inner cavities. The fourth grooves and the third grooves are integrally formed with the inner wall of the installation inner cavities.

[0013] Preferably, the several fourth grooves and the third grooves are integrally formed with the inner wall of the installation inner cavities.

[0014] Preferably, installation iron sheet protruding blocks are provided on one side of the outer walls of the several installation iron sheets, and the installation iron sheet protruding blocks are integrally formed with the installation iron sheets.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. By providing the iron core protruding points, the first grooves, the second grooves and the stator punching protruding points, the present utility model inserts the iron core protruding points into the second grooves and installs the stator punching protruding points inside the first grooves, so as to carry out reliable deformation fixing and limit fixing on them, thereby further improving the connection tightness and reliability between components, and effectively avoiding the problem that the existing stator punching is loose and shakes after a long time of use.

[0017] 2. By providing unequal air gaps around the outer side of the stator punching mechanism, when the external rotor runs at high speed, the air pressure can be evenly distributed when the internal gas passes through the unequal air gaps, thereby improving the stability of the rotation of the internal components during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a partially enlarged schematic diagram of part A of the present invention;

[0020] Figure 3 is a partially enlarged schematic diagram of part B of the present invention;

[0021] In the figure: 100, stator core body; 101, core convex point; 102, first groove; 200, stator punching mechanism; 201, installation inner cavity; 202, installation connection hole; 203, second groove; 204, stator punching convex point; 205, third groove; 206, fourth groove; 207, unequal air gap; 300, installation iron sheet; 301, installation iron sheet convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment 1

[0024] Please refer to Figures 1-3 , an embodiment provided by the present invention: a stator punching sheet applied to a motor, including: a stator core body 100 and a stator punching mechanism 200, and the stator punching mechanism 200 is installed inside the stator core body 100;

[0025] It further includes:

[0026] The first groove 102 is installed on both sides of the outer wall of the stator core body 100. There are two first grooves 102. Core convex points 101 are provided on both sides of the two first grooves 102, and there are two groups of core convex points 101. The two groups of core convex points 101 and the first groove 102 are integrally formed with the first groove 102;

[0027] The installation inner cavity 201 is installed on the outer side of a circle of the stator punching mechanism 200. There are several installation inner cavities 201. There are unequal air gaps 207 between each of the several installation inner cavities 201 and the outer wall of the stator punching mechanism 200. And there are several unequal air gaps 207. Each of the several unequal air gaps 207 is integrally formed with the stator punching mechanism 200.

[0028] The iron core convex points 101 and the first grooves 102 provided on the outer wall of the stator iron core main body 100 can be inserted into the second grooves 203 and the stator punching convex points 204 on the inner wall of the stator punching mechanism 200 to perform reliable deformation fixing and limit fixing on them, thereby further improving the connection tightness and reliability between components. The provided unequal air gaps 207 can effectively equalize the air pressure when the internal gas passes through the unequal air gaps 207 during the high-speed operation of the external rotor.

[0029] Embodiment 2

[0030] Please refer to Figure 1 , on both sides of the inner wall of the stator punching mechanism 200, there are second grooves 203. And there are two groups of second grooves 203. Each of the two groups of second grooves 203 is integrally formed with the inner wall of the stator punching mechanism 200. Between the two groups of second grooves 203, there are stator punching convex points 204. And there are two stator punching convex points 204. Each of the two stator punching convex points 204 is integrally formed with the inner wall of the stator punching mechanism 200. On the upper end face of the stator punching mechanism 200, there are installation connection holes 202. And there are several installation connection holes 202. Each of the several installation connection holes 202 is integrally formed with the stator punching mechanism 200.

[0031] The setting of the stator punching convex points 204 can be installed inside the first grooves 102 to further provide the connection tightness.

[0032] Please refer to Figure 1 and Figure 2 , inside each of the several installation inner cavities 201, there are installation iron sheets 300. And there are several installation iron sheets 300. On one side of both ends of the inner wall of each of the several installation inner cavities 201, there are third grooves 205. On one side of the inner wall of each of the several installation inner cavities 201, there is a fourth groove 206. The fourth groove 206 and the third groove 205 are both integrally formed with the inner wall of the installation inner cavity 201.

[0033] The provided installation iron sheets 300 are fixed inside the installation inner cavities 201. At the same time, the provided fourth grooves 206 and third grooves 205 can effectively provide a limiting operation for the connection between the installation iron sheets 300 and the installation inner cavities 201, thereby avoiding looseness between component connections.

[0034] Please refer to Figure 2, a plurality of fourth grooves 206 and third grooves 205 are integrally formed with the inner wall of the installation inner cavity 201. On one side of the outer wall of a plurality of installation iron sheets 300, there is an installation iron sheet raised block 301, and the installation iron sheet raised block 301 is integrally formed with the installation iron sheet 300.

[0035] The installation iron sheet raised block 301 provided on the outer wall of the installation iron sheet 300 can be effectively limited when installed inside the installation inner cavity 201, avoiding the shaking of the inserted sheet.

[0036] Working principle: The iron core raised points 101 and the first grooves 102 provided on the outer wall of the stator core body 100 can be inserted into the second grooves 203 and the stator punching convex points 204 on the inner wall of the stator punching mechanism 200 to perform reliable deformation fixing and limit fixing on it, thereby further improving the connection tightness and reliability between components. At the same time, the provided unequal air gap 207 can effectively equalize the air pressure when the internal gas passes through the unequal air gap 207 during the high-speed operation of the outer rotor, ensuring that the air pressure intensity around the outside of the stator tends to be consistent.

[0037] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A stator punching sheet used in a motor, comprising a stator core body (100) and a stator punching sheet mechanism (200), wherein the stator punching sheet mechanism (200) is installed inside the stator core body (100); Features: Also includes: A first groove (102) is installed on both sides of the outer wall of the stator core body (100), two first grooves (102) are provided, both sides of the two first grooves (102) are provided with iron core protrusions (101), and two groups of iron core protrusions (101) are provided, and the two groups of the iron core protrusions (101) and the first grooves (102) are formed integrally with the first grooves (102); An installation inner cavity (201) is installed on the outside of a circle of the stator punching mechanism (200), and a plurality of the installation inner cavities (201) are provided, and unequal air gaps (207) are provided between the plurality of the installation inner cavities (201) and the outside of the outer wall of the stator punching mechanism (200), and a plurality of the unequal air gaps (207) are provided, and the plurality of the unequal air gaps (207) are formed integrally with the stator punching mechanism (200).

2. The stator punching sheet used in a motor according to claim 1, characterized in that: Second grooves (203) are provided on both sides of the inner wall of the stator punching mechanism (200), and two groups of second grooves (203) are provided, and the two groups of second grooves (203) are formed integrally with the inner wall of the stator punching mechanism (200); a stator punching protrusion (204) is provided between the two groups of second grooves (203), and two stator punching protrusions (204) are provided, and the two stator punching protrusions (204) are formed integrally with the inner wall of the stator punching mechanism (200).

3. The stator punching sheet used in a motor according to claim 1, characterized in that: The upper end surface of the stator punching mechanism (200) is provided with a mounting connection hole (202), and a plurality of mounting connection holes (202) are provided, and the plurality of mounting connection holes (202) are all formed integrally with the stator punching mechanism (200).

4. The stator punching sheet used in a motor according to claim 1, characterized in that: Several of the installation inner cavities (201) are provided with installation iron sheets (300), and several installation iron sheets (300) are provided. One side of both ends of the inner wall of several of the installation inner cavities (201) is provided with a third groove (205), and one side of the inner wall of several of the installation inner cavities (201) is provided with a fourth groove (206), and the fourth groove (206) and the third groove (205) are both formed integrally with the inner wall of the installation inner cavity (201).

5. The stator punching sheet used in a motor according to claim 4, characterized in that: The plurality of fourth grooves (206) and the third grooves (205) are integrally formed with the inner wall of the installation inner cavity (201).

6. The stator punching sheet used in a motor according to claim 4, characterized in that: One side of the outer wall of a plurality of the mounting iron sheets (300) is provided with a mounting iron sheet protrusion block (301), and the mounting iron sheet protrusion block (301) is formed integrally with the mounting iron sheet (300).

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