Motor stator punching sheet structure

Abstract

The utility model discloses a motor stator punching sheet structure, relates to the motor stator technology field, and comprises a ring body and a clamping block, the periphery of the ring body is provided with heat radiation grooves, a welding groove is formed between two adjacent heat radiation grooves, a welding projection is arranged in the welding groove, the clamping block is arranged on the surface of the ring body, and the clamping block is arranged on the surface of the ring body. A clamping groove, a first ventilation hole, a second ventilation hole and a third ventilation hole are further formed in the surface of the ring body, and the outer portion of the ring body is coated with an anti-static coating. According to the motor stator punching sheet structure, when a motor operates normally, heat generated by the ring body is led out through the heat conduction columns, the temperature of the ring body is reduced, meanwhile, the heat conduction columns play a role in separating copper wires at the winding grooves, friction between the heat conduction columns and the copper wires during winding is avoided, and abrasion of paint on the peripheries of the copper wires is avoided; the anti-loosening protrusions are evenly arranged along the side wall of the stator teeth at intervals, the stability of the copper wire winding initial stage is improved, heat generated by the ring body is guided out through the heat conduction columns when the motor normally operates, and the temperature of the ring body is reduced.

Description

Technical Field

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

[0002] The stator is the stationary part of the motor, and its main function is to generate a rotating magnetic field. The stator consists of three parts: the stator core, the stator winding, and the frame. The stator core is formed by stacking multiple stator punchings.

[0003] For example, the utility model with application number CN202120421461.1 discloses a motor stator punching structure. The utility model is designed with a guide groove with a roughly "V"-shaped cross section connected to the front end of the buckle groove, which plays a guiding role and facilitates the smooth insertion of the card strip to further improve the convenience of assembly. However, when assembling the stator punching, there is a problem that heat is not easy to dissipate after two adjacent punchings are flatly attached, and the heat dissipation efficiency is low.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a motor stator punching structure is proposed. Utility Model Content

[0005] The utility model aims to provide a motor stator punching structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor stator punching structure, including a ring body and a clamping block, the outer periphery of the ring body is provided with a heat dissipation groove, a welding groove is formed between two adjacent heat dissipation grooves, and a welding protrusion is provided in the welding groove, the clamping block is arranged on the surface of the ring body, and the surface of the ring body is also provided with a clamping groove, a first ventilation hole, a second ventilation hole and a third ventilation hole, and the outside of the ring body is coated with an antistatic coating.

[0007] Furthermore, twenty of the heat dissipation slots form a group, and a total of one hundred and twenty heat dissipation slots are provided.

[0008] Furthermore, stator teeth are arranged on the inner circumference of the ring body, and anti-loosening protrusions are fixed on the side walls of the stator teeth.

[0009] Furthermore, a winding groove is formed between two adjacent stator teeth, and a heat-conducting column is arranged in the winding groove.

[0010] Furthermore, an insulating sleeve is provided outside the heat-conducting column, and the number of stator teeth, heat-conducting columns and insulating sleeves is the same.

[0011] Furthermore, the front section of the card block is in the shape of a quadrangular pyramid, and the external structure of the card block matches the internal structure of the card slot.

[0012] Furthermore, the first ventilation holes, the second ventilation holes and the third ventilation holes are equidistantly distributed along the circumference of the ring body, and the first ventilation holes, the second ventilation holes and the third ventilation holes are arranged in the same number.

[0013] The utility model provides a motor stator punching structure, which has the following beneficial effects:

[0014] 1. The first ventilation hole, the second ventilation hole and the third ventilation hole of the utility model are evenly distributed along the circumference of the ring body from the inside to the outside, which can facilitate the airflow to pass through the ring body to bring out the heat. The two adjacent ring bodies are positioned by blocks and slots to prevent displacement caused by external influences when stacked, resulting in unstable welding process and reduced welding accuracy.

[0015] 2. When the motor of the utility model is operating normally, the heat generated by the ring body is conducted out through the heat-conducting column, which is beneficial to reducing the temperature of the ring body. At the same time, the heat-conducting column plays the role of separating the copper wires at the winding grooves, avoiding friction between the heat-conducting column and the copper wires during winding, causing wear of the paint on the outer surface of the copper wires. The anti-loosening protrusions are evenly spaced along the side walls of the stator teeth, which is beneficial to improving the stability of the copper wires in the initial stage of winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of a ring body of a motor stator punching structure of the utility model;

[0017] Figure 2 It is a partial rear view structural diagram of a ring body of a motor stator punching structure of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of a partial three-dimensional structure of a ring body of a motor stator punching structure.

[0019] In the figure: 1. ring body; 2. heat dissipation groove; 3. welding groove; 4. welding protrusion; 5. stator tooth; 6. anti-loosening protrusion; 7. thermal conductive column; 8. insulating sleeve; 9. clamping block; 10. clamping slot; 11. first ventilation hole; 12. second ventilation hole; 13. third ventilation hole; 14. antistatic coating. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figures 1 to 3As shown, a motor stator punching structure includes a ring body 1 and a clamping block 9, the outer periphery of the ring body 1 is provided with a heat dissipation groove 2, a welding groove 3 is formed between two adjacent heat dissipation grooves 2, and a welding protrusion 4 is provided in the welding groove 3, the clamping block 9 is arranged on the surface of the ring body 1, and the surface of the ring body 1 is also provided with a clamping groove 10, a first ventilation hole 11, a second ventilation hole 12 and a third ventilation hole 13, the outside of the ring body 1 is coated with an antistatic coating 14, twenty heat dissipation grooves 2 form a group, and a total of one hundred and twenty heat dissipation grooves 2 are provided, the front section of the clamping block 9 is in the shape of a quadrangular pyramid, and the external structure of the clamping block 9 matches the internal structure of the clamping groove 10, the first ventilation hole 11, the second ventilation hole 12 and the third ventilation hole 13 are all equidistantly distributed along the circumference of the ring body 1, and the first ventilation hole 11, the second ventilation hole 12 and the third ventilation hole 13 are provided in the same number.

[0022] The specific operation is as follows: the first ventilation hole 11, the second ventilation hole 12 and the third ventilation hole 13 are evenly spaced from the inside to the outside along the circumference of the ring body 1, which can facilitate the airflow to pass through the ring body 1 to bring out the heat. The two adjacent ring bodies 1 are positioned by the block 9 and the slot 10 to prevent displacement due to external influences when stacked, resulting in unstable welding process and reduced welding accuracy.

[0023] like Figure 1 As shown, stator teeth 5 are arranged on the inner circumference of the ring body 1, and anti-loosening protrusions 6 are fixed on the side walls of the stator teeth 5, a winding groove is formed between two adjacent stator teeth 5, and a heat-conducting column 7 is arranged in the winding groove, and an insulating sleeve 8 is arranged outside the heat-conducting column 7, and the number of stator teeth 5, heat-conducting columns 7 and insulating sleeves 8 is the same.

[0024] The specific operation is as follows: when the motor is operating normally, the heat generated by the ring body 1 is conducted away through the heat-conducting column 7, which is beneficial to reducing the temperature of the ring body 1. At the same time, the heat-conducting column 7 plays a role in separating the copper wires at the winding grooves to avoid friction between the heat-conducting column 7 and the copper wires during winding, causing wear of the paint on the outer surface of the copper wires. The anti-loosening protrusions 6 are evenly spaced along the side walls of the stator teeth 5, which is beneficial to improving the stability of the copper wires in the initial stage of winding.

[0025] In summary, when the motor stator punching sheet structure is used, when the ring bodies 1 need to be stacked, the two adjacent ring bodies 1 can be positioned by relying on the clamping block 9 and the clamping groove 10. Since the clamping block 9 has the characteristic that the size of the front section is smaller than the size of the rear section, the clamping block 9 is easier to insert into the clamping groove 10, thereby improving the alignment efficiency and accuracy between the stator punching sheets, preventing displacement caused by external influences, and at the same time providing welding reserved space through the welding groove 3 and the welding protrusion 4, thereby improving the welding efficiency;

[0026] Stator teeth 5 are evenly spaced on the inner circumference of the ring body 1. In the initial stage of winding, the copper wire is tightly fixed on the stator teeth 5 by the limit of the anti-loosening protrusion 6. During the process, the copper wires wound on two adjacent stator teeth 5 are isolated by the heat-conducting column 7 with an insulating sleeve 8 on the outside, so that the copper wires will not interfere with each other, and at the same time, the friction between the heat-conducting column 7 and the copper wire is prevented to cause the outer paint of the copper wire to wear;

[0027] When the motor operates normally, the heat-conducting column 7 will conduct the heat generated by the ring body 1. At the same time, the first ventilation hole 11, the second ventilation hole 12 and the third ventilation hole 13 increase the contact area between the airflow and the ring body 1, so that the heat can be taken out in time, and the anti-static coating 14 makes the ring body 1 have an anti-static function, ensuring the fixing effect when the coil is wound.

[0028] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A motor stator punching structure, comprising a ring body (1) and a clamping block (9), characterized in that: The outer periphery of the ring body (1) is provided with a heat dissipation groove (2), a welding groove (3) is formed between two adjacent heat dissipation grooves (2), and a welding protrusion (4) is provided in the welding groove (3), the clamping block (9) is arranged on the surface of the ring body (1), and the surface of the ring body (1) is also provided with a clamping groove (10), a first ventilation hole (11), a second ventilation hole (12) and a third ventilation hole (13), and the outside of the ring body (1) is coated with an antistatic coating (14).

2. A motor stator punching structure according to claim 1, characterized in that: Twenty of the heat dissipation slots (2) form a group, and a total of one hundred and twenty heat dissipation slots (2) are provided.

3. The motor stator punching structure according to claim 1, characterized in that: The inner circumference of the ring body (1) is provided with stator teeth (5), and anti-loosening protrusions (6) are fixed on the side walls of the stator teeth (5).

4. A motor stator punching structure according to claim 3, characterized in that: A winding groove is formed between two adjacent stator teeth (5), and a heat-conducting column (7) is arranged in the winding groove.

5. The motor stator punching structure according to claim 4, characterized in that: An insulating sleeve (8) is arranged outside the heat-conducting column (7), and the number of stator teeth (5), heat-conducting columns (7) and insulating sleeves (8) is the same.

6. The motor stator punching structure according to claim 1, characterized in that: The front section of the card block (9) is in the shape of a quadrangular pyramid, and the external structure of the card block (9) matches the internal structure of the card slot (10).

7. The motor stator punching structure according to claim 1, characterized in that: The first ventilation holes (11), the second ventilation holes (12) and the third ventilation holes (13) are all distributed at equal intervals along the circumference of the ring body (1), and the first ventilation holes (11), the second ventilation holes (12) and the third ventilation holes (13) are arranged in the same number.

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