High-stability stator

Abstract

The utility model discloses a high-stability stator, relates to the technical field of motors, and aims to solve the problems that a stator iron core is large in size, small in available surface area and limited in heat dissipation effect, the main points of the technical scheme are that a stator body is formed by laminating a plurality of stator punching sheets, each stator punching sheet comprises a plurality of tooth parts and tooth grooves formed by adjacent tooth parts, and the tooth grooves are arranged in the tooth parts. The stator punching sheet is provided with a first heat dissipation opening, a second heat dissipation opening and a third heat dissipation opening, when the stator punching sheet is laminated, the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening are communicated, and the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening form a plurality of heat dissipation through grooves penetrating through the stator body on the stator body. According to the high-stability stator provided by the utility model, the stator punching sheets are provided with the plurality of heat dissipation openings with the same circle center angle, and the plurality of heat dissipation channels are formed in the stator body, so that the surface area of the stator body is increased, the heat dissipation effect of the stator body is improved, and the stability of the stator during heat dissipation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically, to a high-stability stator. Background Art

[0002] The stator consists of a frame, a stator core, a coil and other structural parts that fix these parts. The frame is used to fix the core. For a suspended generator, the frame is used to bear the entire weight of the rotating part. The core is part of the generator's magnetic circuit, and the coil forms the generator's circuit.

[0003] During operation, the motor will generate heat due to various losses, causing the temperature of various parts of the motor to rise. When the temperature inside the motor rises to a certain level, it will pose a serious threat to the safety of the metal structure inside the motor. At present, the conventional heat dissipation methods of the stator core are: natural cooling, forced ventilation heat dissipation, and liquid cooling heat dissipation. Natural cooling heat dissipation uses the convection of the surrounding air to dissipate heat. Through the surface area and shape of the stator core, the location where the motor is installed, and the ventilation conditions of the surrounding environment, heat is exchanged between the air and the surface of the stator core. However, the stator core itself is large in size and has a small available surface area, so the heat dissipation effect is limited.

[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a high-stability stator.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a high-stability stator includes a stator body, the stator body is formed by stacking a plurality of stator punching sheets, the stator punching sheets include a plurality of tooth portions and tooth grooves formed by adjacent tooth portions, the stator punching sheets are provided with a first heat dissipation opening, a second heat dissipation opening and a third heat dissipation opening, when the stator punching sheets are stacked, the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening are connected, and the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening form a plurality of heat dissipation through grooves that penetrate the stator body on the stator body.

[0007] The utility model is further configured as follows: the first heat dissipation opening is connected to the tooth groove, the third heat dissipation opening extends to the outer edge of the stator punching sheet and forms a notch on the outer circumferential wall of the stator punching sheet, the second heat dissipation opening is located between the first heat dissipation opening and the third heat dissipation opening, and the central angle between the first heat dissipation opening and the second heat dissipation opening is the same as the central angle between the second heat dissipation opening and the third heat dissipation opening.

[0008] The utility model is further configured as follows: the number of the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening on the single stator punching sheet is greater than or equal to one.

[0009] The utility model is further configured as follows: the opening widths of the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening are the same; a first correction opening is provided on one end of the first heat dissipation opening away from the inner circumferential wall of the stator punching sheet; a second correction opening is provided on one end of the third heat dissipation opening away from the outer circumferential wall of the stator punching sheet; and correction openings three having the same shape and size as the first correction opening and the second correction opening are provided at both ends of the second heat dissipation opening.

[0010] The utility model is further configured as follows: a heat dissipation pipe is fixedly connected to the inner walls of the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening, and the diameter of the heat dissipation pipe is smaller than the thickness of the stator punching sheet.

[0011] The utility model is further configured as follows: the heat dissipation pipe is made of copper mesh.

[0012] In summary, the utility model has the following beneficial effects: the stator body is formed by stacking a plurality of stator punching sheets, a first heat dissipation opening, a second heat dissipation opening and a third heat dissipation opening are provided on the stator punching sheets, the first heat dissipation opening is connected to the tooth slot of the stator punching sheet, the third heat dissipation opening extends toward the outer circumferential wall of the stator punching sheet and forms a notch on the outer circumferential wall, the second heat dissipation opening is located between the first heat dissipation opening and the third heat dissipation opening, and the central angle formed by the first heat dissipation opening and the second heat dissipation opening is the same as the central angle formed by the second heat dissipation opening and the third heat dissipation opening. When the stator punching sheets are stacked, The angle of the stator punching sheet is rotated and adjusted so that the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening are connected, and a plurality of heat dissipation grooves are formed on the stator body, so as to increase the surface area of ​​the stator body and improve the heat dissipation effect. In addition, heat dissipation pipes are fixedly connected to the inner peripheral walls of the first heat dissipation opening, the second heat dissipation opening and the third heat dissipation opening. The heat dissipation pipes are made of copper material, and the excellent thermal conductivity of the copper material is used to further improve the overall heat dissipation effect of the stator body. By enhancing the heat dissipation effect of the stator, the possibility of reduced working efficiency or even damage due to excessive temperature of the motor is reduced, and the stability of the motor during operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a top view of the stator punching sheet;

[0015] Figure 3 It is a cross-sectional view of the utility model;

[0016] Figure 4 for Figure 3Enlarged schematic diagram of part A in the middle.

[0017] In the figure: 1. stator body; 2. stator punching sheet; 201. tooth portion; 202. tooth slot; 3. first heat dissipation opening; 4. second heat dissipation opening; 5. third heat dissipation opening; 6. heat dissipation pipe. DETAILED DESCRIPTION

[0018] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] A high stability stator, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a stator body 1, which is formed by stacking a plurality of stator punching sheets 2. The stator punching sheets 2 include a plurality of tooth portions 201 and tooth slots 202 formed by adjacent tooth portions 201. The stator punching sheets 2 are provided with a first heat dissipation opening 3, a second heat dissipation opening 4 and a third heat dissipation opening 5. When the stator punching sheets 2 are stacked, the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 form a plurality of heat dissipation slots penetrating the stator body 1 on the stator body 1. When the stator punching sheets 2 are stacked, the stator punching sheets 2 are rotated and adjusted so that the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 form a plurality of oblique heat dissipation slots penetrating the stator body 1 on the stator body 1, thereby increasing the surface area of ​​the stator body 1 and improving the heat dissipation effect of natural cooling. After the stator punching sheets 2 are formed by stacking multiple layers of stator punching sheets 2, the heat dissipation slots are evenly opened on the stator body 1, and the heat dissipation effect is more uniform.

[0020] like Figure 1 - Figure 4 As shown, the stator sheet 2 includes a plurality of teeth 201, tooth slots 202 are formed between adjacent teeth 201, the shapes of the openings of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 are all set to be rectangular, the first heat dissipation opening 3 extends along the outer circumference direction of the stator sheet 2, and the first heat dissipation opening 3 is connected to the tooth slots 202, and a notch is formed in the tooth slots 202 of the stator sheet 2, the third heat dissipation opening 5 is arranged close to the outer circumferential wall of the stator sheet 2, and a notch is formed on the outer circumferential wall of the stator sheet 2, and the second heat dissipation opening 4 is located at the first heat dissipation opening 3. The opening 3 and the third heat dissipation opening 5, the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 can reduce the weight of the stator body 1, and can also increase the surface area of ​​the stator body 1, and improve the heat dissipation effect. The central angle of the first heat dissipation opening 3 and the second heat dissipation opening 4 is equal to the central angle of the second heat dissipation opening 4 and the third heat dissipation opening 5. The setting of the central angle makes it possible for the heat dissipation channels formed by stacking the stator punching sheets 2 to form the stator body 1 to be evenly distributed on the stator body 1, thereby ensuring the stability of the stator body 1 during heat dissipation.

[0021] like Figure 1 - Figure 4 As shown, the number of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 on the single stator punching sheet 2 is greater than or equal to one. The required heat dissipation effect is different according to the different diameters of the stator punching sheet 2. For a stator with a larger volume, the number of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 can be increased on the stator punching sheet 2 to increase the number of heat dissipation channels on the stator body 1 and improve the heat dissipation effect. In order to ensure the strength of the stator body 1, the area occupied by the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 on the stator punching sheet 2 is less than one-fifth of the area of ​​the stator punching sheet 2, and the number of heat dissipation openings can be increased or decreased according to the different distances from the inner circle to the outer circle of the stator punching sheet 2 to ensure the stability and strength of the overall structure when the stator punching sheets 2 are stacked to form the stator body 1.

[0022] like Figure 1 - Figure 4 As shown, the opening widths of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 are the same, a correction opening 1 is provided on one end of the first heat dissipation opening 3 away from the inner circumferential wall of the stator punching sheet 2, a correction opening 2 is provided on one end of the third heat dissipation opening 5 away from the outer circumferential wall of the stator punching sheet 2, and correction openings 3 with the same shape and size as the correction opening 1 and the correction opening 2 are provided at both ends of the second heat dissipation opening 4. The correction opening 1, the correction opening 2 and the correction opening 3 are respectively connected with the first heat dissipation opening 3, the third heat dissipation opening 5 and the second heat dissipation opening 4. The setting of the correction opening 1, the correction opening 2 and the correction opening 3 is to correct the positions of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 of the stator punching sheet 2 at different vertical heights during stacking. During stacking, it is judged whether the rotation angle of the stator punching sheet 2 is correct by observing whether the correction opening 1 and the correction opening 3 and the correction opening 2 and the correction opening 3 overlap. The accurate position of the stator punching sheet 2 during stacking ensures the stable formation of the heat dissipation channel.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, a heat dissipation pipe 6 is fixedly connected to the inner walls of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5, and the heat dissipation pipe 6 is attached to the inner walls of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5. The heat dissipation pipe 6 is made of copper mesh and can be fixedly connected to the inner walls of the first heat dissipation opening 3, the second heat dissipation opening 4 and the third heat dissipation opening 5 by welding or bonding. The diameter of the heat dissipation pipe 6 is smaller than the thickness of the stator punching sheet 2, which reduces the extrusion of the heat dissipation pipe 6 during stacking and facilitates the forming of the stator body 1. Copper has good thermal conductivity, which can conduct the heat inside the motor to the base and the casing for heat dissipation more quickly, reducing the possibility of reduced working efficiency or even damage due to excessive motor temperature, and improving the stability of the motor during operation.

[0024] like Figure 1 - Figure 4 As shown, a plurality of stator punching sheets 2 are stacked on a stator punching sheet 2 stacking tool, and the angle of the stator punching sheet 2 is rotated to adjust so that a plurality of first heat dissipation openings 3, second heat dissipation openings 4 and third heat dissipation openings 5 ​​form a plurality of heat dissipation grooves on the stator body 1, and the stator punching sheet 2 stacking tool is used to stack the plurality of stator punching sheets 2 to form a stator body 1.

[0025] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high stability stator, comprising a stator body (1), characterized in that: The stator body (1) is formed by stacking a plurality of stator punching sheets (2); the stator punching sheets (2) include a plurality of tooth portions (201) and tooth slots (202) formed by adjacent tooth portions (201); the stator punching sheets (2) are provided with a first heat dissipation opening (3), a second heat dissipation opening (4) and a third heat dissipation opening (5); when the stator punching sheets (2) are stacked, the first heat dissipation opening (3), the second heat dissipation opening (4) and the third heat dissipation opening (5) form a plurality of heat dissipation through slots on the stator body (1) that penetrate the stator body (1).

2. A high stability stator according to claim 1, characterized in that: The first heat dissipation opening (3) is connected to the tooth slot (202), the third heat dissipation opening (5) extends toward the outer edge of the stator punching sheet (2) and forms a notch on the outer circumferential wall of the stator punching sheet (2), the second heat dissipation opening (4) is located between the first heat dissipation opening (3) and the third heat dissipation opening (5), and the central angle between the first heat dissipation opening (3) and the second heat dissipation opening (4) is the same as the central angle between the second heat dissipation opening (4) and the third heat dissipation opening (5).

3. A high stability stator according to claim 2, characterized in that: The number of the first heat dissipation opening (3), the second heat dissipation opening (4) and the third heat dissipation opening (5) on the single stator punching sheet (2) is greater than or equal to one.

4. A high stability stator according to claim 3, characterized in that: The first heat dissipation opening (3), the second heat dissipation opening (4) and the third heat dissipation opening (5) have the same opening width; a first correction opening is provided at one end of the first heat dissipation opening (3) away from the inner circumferential wall of the stator punching sheet (2); a second correction opening is provided at one end of the third heat dissipation opening (5) away from the outer circumferential wall of the stator punching sheet (2); and three correction openings having the same shape and size as the first correction opening and the second correction opening are provided at both ends of the second heat dissipation opening (4).

5. A high stability stator according to claim 1, characterized in that: A heat dissipation pipe (6) is fixedly connected to the inner walls of the first heat dissipation opening (3), the second heat dissipation opening (4) and the third heat dissipation opening (5); the diameter of the heat dissipation pipe (6) is smaller than the thickness of the stator punching sheet (2).

6. A high stability stator according to claim 5, characterized in that: The heat dissipation pipe (6) is made of copper mesh.

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