Rust-proof motor rotor core with insulation protection structure

Abstract

The utility model relates to the technical field of rotor cores, and particularly discloses a rust-proof motor rotor core with an insulation protection structure, which comprises a rotor punching sheet, the rotor punching sheet is of a circular silicon steel sheet structure, the surface of the rotor punching sheet is provided with a connecting hole, and the connecting hole and the rotor punching sheet are of a concentric circle structure. The connecting holes are formed by punching of a punching machine, and connecting grooves are formed in the outer surfaces of the rotor punching sheets and are of trapezoidal through hole structures. According to the rust-proof motor rotor core with the insulation protection structure, the surfaces of the two sides of the rotor punching sheet are coated with the insulation protection coatings formed by the insulation paint respectively, and the protection coatings are used for isolating direct contact between external factors such as air and moisture and the rotor punching sheet, so that a good rust-proof effect is achieved, and meanwhile, the service life of the motor rotor core is prolonged. The insulating coating also can enhance the insulating performance of the rotor core, reduce the risk of current leakage, and guarantee the safety and stability of the operation of the motor.

Description

Technical Field

[0001] This utility model relates to the field of rotor core technology, specifically to a rust-proof motor rotor core with an insulating protection structure. Background Technology

[0002] An electric motor consists of a rotor and a stator. The rotor includes an iron core and coils mounted on the iron core. When the motor is running, the rotor iron core generates an induced electromotive force. The rotor core is a key component of the motor and plays a core role in the operation of the motor. It is mainly made of laminated silicon steel sheets. If the insulation performance of the rotor core is poor, it will lead to current leakage, which will prevent electrical energy from being effectively converted into mechanical energy and reduce the efficiency of the motor. On the other hand, leakage may cause safety accidents and threaten the personal safety of the operators.

[0003] The traditional insulation process for electronic cores involves placing insulating paper and applying insulating varnish between the rotor core and copper wires. This process is cumbersome, resulting in low production efficiency and increased costs. Utility Model Content

[0004] The purpose of this invention is to provide a rust-proof motor rotor core with an insulating protective structure. This device applies an insulating coating during the processing of the rotor core laminations to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rust-proof motor rotor core with an insulating protection structure, comprising rotor laminations, wherein the rotor laminations are circular silicon steel sheets, and connecting holes are provided on the surface of the rotor laminations, wherein the connecting holes and the rotor laminations are concentric circles, the connecting holes are formed by stamping with a stamping machine, and connecting grooves are provided on the outer surface of the rotor laminations, wherein the connecting grooves are trapezoidal through holes and penetrate the outer surface of the rotor laminations, the connecting grooves are formed by stamping with a stamping machine.

[0006] Preferably, a protective coating is provided on both sides of the rotor lamination, and the protective coating is formed on the surface of the rotor lamination by applying an insulating coating using a coating device.

[0007] By employing the above technical solution, an insulating coating can be formed on the surface of the rotor lamination using a protective coating.

[0008] Preferably, the surface of the rotor lamination is provided with a heat dissipation structure, which increases the heat dissipation efficiency of the rotor lamination through external heat dissipation holes and internal heat dissipation holes.

[0009] By adopting the above technical solution, the heat dissipation efficiency of the rotor laminations can be increased by utilizing the heat dissipation structure.

[0010] Preferably, the heat dissipation structure includes external heat dissipation holes, which are blade-shaped through holes and are arranged in annularly on the surface of the rotor lamination. The external heat dissipation holes are staggered with the connecting groove. An internal heat dissipation hole is arranged in annularly on the surface of the rotor lamination. The internal heat dissipation hole is a blade-shaped through hole and is arranged in annularly on the outer surface of the connecting hole.

[0011] By adopting the above technical solution, the heat dissipation efficiency of the device can be increased by using external and internal heat dissipation holes.

[0012] Preferably, the surface of the rotor lamination is provided with a snap-fit ​​structure, which increases the connection stability between multiple rotor laminations through connecting grooves and connecting protrusions.

[0013] By adopting the above technical solution, the connection stability between multiple rotor laminations can be increased by using a snap-fit ​​structure.

[0014] Preferably, the snap-fit ​​structure includes a connecting groove, which is trapezoidal in shape and extends through the inner wall of the connecting hole. Three connecting grooves are equidistantly arranged in a ring on the inner wall of the connecting hole. A connecting protrusion is provided between two adjacent connecting grooves. The connecting protrusion is trapezoidal and engages with the connecting groove. The thickness of the connecting protrusion is the same as that of the rotor lamination. Three connecting protrusions are equidistantly arranged in a ring on each side surface of the rotor lamination.

[0015] By adopting the above technical solution, the connection stability of the device can be increased by utilizing the engagement between the connecting groove and the connecting protrusion.

[0016] Preferably, the two rotor laminations are welded together, and the connecting groove on the surface of one rotor lamination engages with the connecting protrusion on the surface of the other rotor lamination. The multiple rotor laminations are welded together to form a complete rotor core.

[0017] By adopting the above technical solution, a complete rotor core can be formed by welding together multiple rotor laminations.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the rust-proof motor rotor core with an insulating protection structure:

[0019] 1. This device applies an insulating protective coating formed by coating both sides of the rotor laminations with insulating varnish. This protective coating isolates the rotor laminations from direct contact with external factors such as air and moisture, thus providing good rust prevention. At the same time, the insulating coating also enhances the insulation performance of the rotor core, reduces the risk of current leakage, and ensures the safety and stability of the motor operation.

[0020] 2. This device has annular external heat dissipation holes and internal heat dissipation holes on the surface of the rotor laminations. The external heat dissipation holes are staggered with the connecting grooves. The internal heat dissipation holes are also blade-shaped through holes annularly arranged on the outer surface of the connecting holes. This increases the contact area between the rotor laminations and the outside air, allowing heat to dissipate more quickly and reducing the temperature of the rotor during operation.

[0021] 3. This device has matching connecting grooves and connecting protrusions on the surface of the rotor laminations. During the connection process, the connecting grooves and connecting protrusions between two adjacent rotor laminations engage with each other before welding. This double connection can increase the connection stability between the rotor laminations. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the rotor lamination and protective coating structure of this utility model;

[0024] Figure 3 This is a side sectional view of the rotor lamination structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the rotor lamination snap-fit ​​structure of this utility model;

[0026] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0027] In the diagram: 1. Rotor lamination; 2. Connecting hole; 3. Connecting groove; 4. Protective coating; 5. External heat dissipation hole; 6. Internal heat dissipation hole; 7. Connecting groove; 8. Connecting protrusion. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 This utility model provides a technical solution: a rust-proof motor rotor core with an insulating protection structure, including rotor laminations 1, connecting holes 2, connecting grooves 3, protective coating 4, external heat dissipation holes 5, internal heat dissipation holes 6, connecting grooves 7, and connecting protrusions 8.

[0030] The rotor lamination 1 is a circular silicon steel sheet structure. The surface of the rotor lamination 1 is provided with a connecting hole 2, which is a concentric circle structure with the rotor lamination 1. The connecting hole 2 is formed by stamping with a stamping machine. The outer surface of the rotor lamination 1 is provided with a connecting groove 3, which is a trapezoidal through hole structure and passes through the outer surface of the rotor lamination 1. The connecting groove 3 is formed by stamping with a stamping machine. The two sides of the rotor lamination 1 are respectively provided with a protective coating 4. The protective coating 4 is formed by coating the surface of the insulating varnish rotor lamination 1 with an insulating coating using a coating equipment. The surface of the rotor lamination 1 is provided with a heat dissipation structure. The heat dissipation structure increases the heat dissipation efficiency of the rotor lamination 1 through the external heat dissipation hole 5 and the internal heat dissipation hole 6. The heat dissipation structure includes the external heat dissipation hole 5, which is a blade-shaped through hole. The external heat dissipation hole 5 is arranged in a ring on the surface of the rotor lamination 1. The external heat dissipation hole 5 and the connecting groove 3 are staggered. The surface of the rotor lamination 1 is provided with an internal heat dissipation hole 6, which is a blade-shaped through hole. The internal heat dissipation hole 6 is arranged in a ring on the outer surface of the connecting hole 2.

[0031] like Figure 1 and Figure 2 As shown, a stamping machine is used to stamp connecting holes 2 and connecting grooves 3 on the surface of a circular silicon steel sheet. External heat dissipation holes 5 and internal heat dissipation holes 6 are machined on the surface of the rotor lamination 1, so that the external heat dissipation holes 5 and internal heat dissipation holes 6 are evenly distributed on the surface of the rotor lamination 1. The external heat dissipation holes 5 and the connecting grooves 3 are staggered. Insulating varnish is evenly coated on both sides of the rotor lamination 1 using a coating device to form a protective coating 4. The protective coating 4 isolates the surface of the rotor lamination 1 from the air, increases the rust resistance of the rotor lamination 1, and thus increases the service life of the rotor lamination 1. The connecting holes 2 can connect the rotor core to the shaft, and the connecting grooves 3 can connect the rotor core to the coil. The external heat dissipation holes 5 and internal heat dissipation holes 6 on the surface of the rotor lamination 1 increase the heat dissipation performance of the device and improve the service life of the device.

[0032] The surface of the rotor lamination 1 is provided with a snap-fit ​​structure. The snap-fit ​​structure increases the connection stability between multiple rotor laminations 1 through the connecting groove 7 and the connecting protrusion 8. The snap-fit ​​structure includes the connecting groove 7, which is trapezoidal in shape and is provided through the inner wall of the connecting hole 2. Three connecting grooves 7 are provided equidistantly in an annular pattern on the inner wall of the connecting hole 2. A connecting protrusion 8 is provided between two adjacent connecting grooves 7. The connecting protrusion 8 is trapezoidal and engages with the connecting groove 7. The thickness of the connecting protrusion 8 is the same as that of the rotor lamination 1. Three connecting protrusions 8 are provided equidistantly on both sides of the rotor lamination 1. Two rotor laminations 1 are welded together. The connecting groove 7 on the surface of one rotor lamination 1 engages with the connecting protrusion 8 on the surface of another rotor lamination 1. Multiple rotor laminations 1 are welded together to form a complete rotor core.

[0033] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, during the assembly of the rotor core, two rotor laminations 1 are taken, and the connecting groove 7 on the surface of one rotor lamination 1 is engaged with the connecting protrusion 8 on the surface of the other rotor lamination 1 to initially position them. The two engaged rotor laminations 1 are then welded together using a welding process to ensure welding quality and make the welded parts firm and reliable. Following the same method, multiple rotor laminations 1 are engaged and welded in sequence to finally form a complete rotor core.

[0034] Working principle: When using the rust-proof motor rotor core with an insulating protection structure, multiple rotor laminations 1 are welded together to form the rotor core. The snap-fit ​​structure composed of connecting grooves 7 and connecting protrusions 8 can increase the connection stability of the device. The protective coating 4 on the surface of the rotor laminations 1 isolates them from the external environment to prevent the rotor laminations 1 from rusting. The external heat dissipation holes 5 and internal heat dissipation holes 6 increase the contact area between the rotor laminations 1 and the air, thereby increasing the heat dissipation efficiency of the device and improving its overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rust-resistant motor rotor core with an insulating protection structure, comprising rotor laminations (1), wherein the rotor laminations (1) are circular silicon steel sheets, characterized in that: The rotor lamination (1) has a connecting hole (2) on its surface. The connecting hole (2) and the rotor lamination (1) are concentric circles. The connecting hole (2) is formed by stamping with a stamping machine. The outer surface of the rotor lamination (1) has a connecting groove (3). The connecting groove (3) is a trapezoidal through hole structure and passes through the outer surface of the rotor lamination (1). The connecting groove (3) is formed by stamping with a stamping machine.

2. A rust-resistant motor rotor core with an insulating protection structure according to claim 1, characterized in that: The rotor lamination (1) has protective coatings (4) on both sides. The protective coatings (4) are formed on the surface of the rotor lamination (1) by coating equipment.

3. A rust-resistant motor rotor core with an insulating protection structure according to claim 1, characterized in that: The surface of the rotor lamination (1) is provided with a heat dissipation structure, which increases the heat dissipation efficiency of the rotor lamination (1) through the outer heat dissipation hole (5) and the inner heat dissipation hole (6).

4. A rust-resistant motor rotor core with an insulating protection structure according to claim 3, characterized in that: The heat dissipation structure includes an external heat dissipation hole (5), which is a blade-shaped through hole. The external heat dissipation hole (5) is arranged in annularly on the surface of the rotor lamination (1). The external heat dissipation hole (5) and the connecting groove (3) are staggered. An internal heat dissipation hole (6) is arranged in annularly on the surface of the rotor lamination (1). The internal heat dissipation hole (6) is a blade-shaped through hole. The internal heat dissipation hole (6) is arranged in annularly on the outer surface of the connecting hole (2).

5. A rust-resistant motor rotor core with an insulating protection structure according to claim 1, characterized in that: The surface of the rotor lamination (1) is provided with a snap-fit ​​structure, which increases the connection stability between multiple rotor laminations (1) through the connecting groove (7) and the connecting protrusion (8).

6. A rust-resistant motor rotor core with an insulating protection structure according to claim 5, characterized in that: The snap-fit ​​structure includes a connecting groove (7), which is trapezoidal in shape and extends through the inner wall of the connecting hole (2). Three connecting grooves (7) are equidistantly arranged in an annular pattern on the inner wall of the connecting hole (2). A connecting protrusion (8) is provided between two adjacent connecting grooves (7). The connecting protrusion (8) is trapezoidal and engages with the connecting groove (7). The thickness of the connecting protrusion (8) is the same as that of the rotor lamination (1). Three connecting protrusions (8) are arranged in an annular pattern on both sides of the rotor lamination (1). The three connecting protrusions (8) are equidistant from each other.

7. A rust-resistant motor rotor core with an insulating protection structure according to claim 1, characterized in that: Two rotor laminations (1) are welded together, and the connecting groove (7) on the surface of one rotor lamination (1) is engaged with the connecting protrusion (8) on the surface of the other rotor lamination (1). Multiple rotor laminations (1) are welded together to form a complete rotor core.

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