Semicircular externally-wound alternating current electronic stator winding

Abstract

The invention relates to the technical field of motor stator windings, in particular to a semicircular externally-wound alternating current electronic stator winding which comprises a stator core, a plurality of winding grooves are evenly formed in the stator core in the circumferential direction, winding coils are evenly wound on the winding grooves, and the winding coils are wound from inside to outside along the axis of the stator core. The stator core is further connected with a PG plate, the PG plate and the stator core are coaxially arranged, and the diameter of the PG plate is the same as that of the stator core. According to the invention, the anti-interference performance and integrity of the stator winding are improved.

Description

Technical Field

[0001] The present application relates to the technical field of motor stator windings, and in particular to a semicircular outer-wound AC electronic stator winding. Background Art

[0002] At present, electronic stator winding refers to the winding installed on the stator of the motor, which is usually composed of multiple coils or coil groups to form one phase or the entire electromagnetic circuit. The main function of the stator winding is to generate a magnetic field and provide the necessary magnetic field environment for the operation of the motor. In the AC motor, the stator winding generates a rotating magnetic field through AC current, which interacts with the rotor winding to generate electromagnetic torque and drive the motor to rotate.

[0003] The related technology can refer to the Chinese patent with the announcement number CN105226849A, which discloses an AC generator stator winding, which includes a stator with a plurality of radial grooves arranged around the inner periphery of the stator; a plurality of stator wires, each wire comprising: a first end; a second end; a plurality of wavy coils located between the first end and the second end, each wavy coil consisting of a straight portion and an arc portion alternatingly; wherein the straight portion of each wire is sequentially placed in the corresponding groove of the stator, so that each of the grooves has a wire embedded therein.

[0004] Regarding the above-mentioned related technologies, the motor will be subjected to large vibrations and shocks during operation, especially in the case of frequent starting and large load fluctuations. These vibrations and shocks may cause the winding to loosen, deform, or even be damaged, thereby reducing the integrity of the winding and affecting the overall performance of the motor. Summary of the invention

[0005] In order to improve the overall performance of the motor, the present application provides a semicircular outer wound AC electronic stator winding.

[0006] The half-turn outer-wound AC electronic stator winding provided in the present application adopts the following technical solution: A half-turn outer-wound AC electronic stator winding comprises a stator core, wherein a plurality of winding slots are evenly opened in the circumferential direction on the stator core, the winding slots are opened toward the center of the stator core, winding coils are evenly wound on the winding slots, and the winding coils are wound from the inside to the outside along the axis of the stator core. A PG board is also connected to the stator core, the PG board is coaxially arranged with the stator core, and the PG board has the same diameter as the stator core.

[0007] By adopting the above technical solution, the PG board is directly connected to the stator core, so that the position information of the stator core can be sensed more accurately. Since the intermediate transmission links are reduced, the transmission path of the position signal is shorter, and the signal attenuation and interference are less, thereby improving the accuracy of position detection. Furthermore, the direct connection allows the PG board to respond to changes in the position of the stator core more quickly, and to feed back this change to the motor control system in real time, which helps to improve the response speed of the motor control system, so that the motor can adapt to load changes more quickly, and improve the dynamic performance of the overall system. At the same time, it can also simplify the internal structure of the motor, reduce the number of connectors and intermediate components, reduce the complexity and manufacturing cost of the motor, make the overall integrity of the stator winding higher, improve the safety and reliability of the motor, thereby reducing the risk of failure caused by poor connection or loose connectors, and simplify the maintenance process to ensure stable operation in high-frequency or strong electromagnetic field environments, thereby improving the overall performance and service life of the motor.

[0008] As a preferred solution of the present invention, a plurality of connecting holes are provided on the peripheral wall of the stator core, and adaptive pins are provided in the connecting holes, one end of the adaptive pin is located in the connecting hole, and the other end of the adaptive pin extends to the outside of the stator core, and the end of the adaptive pin is connected to the PG board.

[0009] By adopting the above technical solution, the adaptive pins can be used to optimize the connection and layout of the winding coils and improve the electromagnetic performance and thermal performance of the winding coils. This design may help reduce the resistance and inductance of the winding coils, reduce losses, and improve current distribution, thereby improving the efficiency and power factor of the motor. The adaptive pins can be fine-tuned according to the actual situation of the stator core to ensure accurate docking with the PG board, thereby improving the accuracy and stability of the connection, and at the same time making the installation process of the adaptive pins simpler. The operator can achieve the connection between the adaptive pins and the PG board without complex adjustments, reducing the difficulty and time cost of installation. The uniform setting of the adaptive pins helps to improve the heat dissipation conditions of the stator windings. The gaps between the adaptive pins can promote air circulation, which is conducive to heat dissipation, thereby reducing the temperature of the motor during operation and extending the life of the motor. Furthermore, the direct connection of the adaptive pins to the PG board helps to reduce interference and attenuation during signal transmission, improve the transmission quality of electromagnetic signals, and help to improve the electromagnetic performance of the motor, so that it can maintain a stable operating state under different working conditions.

[0010] As a preferred solution of the present invention, the winding coil is wrapped with an insulating packaging material, and the insulating packaging material is wrapped on the winding coil along the circumferential direction of the stator core.

[0011] By adopting the above technical solution, the insulating packaging material can effectively isolate the stator winding from other metal parts of the motor, preventing current from directly passing through these parts and causing short circuit or leakage. At the same time, it can also optimize the electromagnetic field distribution of the motor, reduce eddy current and magnetic tape loss, thereby improving the efficiency and performance of the motor. Furthermore, the insulating packaging material can also play a mechanical protection role for the winding coil, preventing the winding coil from being damaged by external factors such as vibration and friction during the operation of the motor. At the same time, the insulating packaging material can also resist the erosion of environmental factors such as oil, water, and dust, thereby extending the service life of the winding coil.

[0012] As a preferred solution of the present invention, a cooling member is provided between the adaptive pin and the insulating packaging material, the cooling member is evenly provided in a circle along the inner wall of the stator core, and the cooling member is provided in the winding slot corresponding to the winding coil.

[0013] By adopting the above technical solution, the cooling element can effectively reduce the temperature of the motor during operation.

[0014] As a preferred solution of the present invention, an integrated intelligent chip is provided on the PG board.

[0015] By adopting the above technical solution, the smart chip can detect the position of the stator core with high precision. By obtaining the stator core position information in real time, it can ensure that the motor can maintain the best operating state under different working conditions, which helps to improve the response speed and accuracy of the motor control system, improve the operating efficiency of the overall system, and realize automatic detection of the power line connection, thereby improving the accuracy and safety of operation.

[0016] As a preferred solution of the present invention, the winding coils are provided in a plurality of groups, the plurality of groups of winding coils are wound in layers, and each layer of the winding coils is gradually reduced.

[0017] By adopting the above technical solution, the multi-layer winding design allows more conductors to be embedded in limited winding slots, thereby improving space utilization, and can also optimize the magnetic field distribution, reduce harmonic components, improve the electromagnetic performance of the motor, reduce the electromagnetic interference generated by the motor during operation, and improve electromagnetic compatibility. Furthermore, the gradual reduction can enable the winding coil to maintain a good heat dissipation effect and ensure the stability of the motor during long-term operation.

[0018] As a preferred solution of the present invention, a reinforcing rib is provided on the side wall of the stator core away from the winding slot, the reinforcing rib is arranged along the axial direction of the stator core, and a plurality of the reinforcing ribs are evenly arranged along the circumference of the stator core.

[0019] By adopting the above technical solution, the stator core is reinforced by the reinforcement ribs, which can increase the mechanical strength of the stator core, so that the stator core can withstand greater electromagnetic force and mechanical stress, thereby improving the stability and reliability of the motor operation. At the same time, the reinforcement ribs can also increase the heat dissipation area, which is beneficial to the heat dissipation on the stator core, reducing the temperature of the stator core, and extending the overall service life of the stator winding. Further, the reinforcement ribs can increase the stiffness of the stator core, reduce the noise and wear caused by vibration during the operation of the motor, thereby improving the operation quality of the motor. The reinforcement ribs provide good support and fixing for the stator core, and can prevent the stator winding from loosening or deforming during the operation of the motor, thereby ensuring the performance and stability of the motor. The design of the reinforcement ribs can improve the magnetic field distribution around the stator core, reduce magnetic field distortion and leakage, and improve the electromagnetic conversion efficiency of the motor.

[0020] As a preferred solution of the present invention, a wire outlet hole is provided on the side wall of the PG board, a plurality of wire outlet holes are provided, the wire outlet holes are provided at the edge of the PG board, and power lines and control lines are passed through the wire outlet holes.

[0021] By adopting the above technical solution, the connection line between the stator winding and the PG board can be made simpler and clearer. Reducing the occurrence of line crossing and entanglement is conducive to reducing the difficulty and cost of wiring. Setting the outlet hole at the edge of the PG board can effectively utilize the space inside the motor, avoid interference with other parts of the motor, and ensure the compactness and rationality of the motor structure. At the same time, it is conducive to the heat dissipation inside the motor. The heat can be dissipated by natural convection along the edge of the PG board, reducing the temperature rise of the motor. Furthermore, the outlet hole is set at the edge of the PG board to reduce the bending and pulling of the signal line inside the motor, reduce signal attenuation and interference, improve the accuracy and stability of position detection, and make the installation and replacement of the PG board more convenient and quick, and also facilitate subsequent maintenance and repair work.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application connects the PG board directly to the stator core and sets an integrated smart chip on the PG board. The PG board is directly connected to the stator core, which can more accurately sense the position information of the stator core. Since the intermediate transmission links are reduced, the transmission path of the position signal is shorter, and the signal attenuation and interference are less, thereby improving the accuracy of position detection. Furthermore, the direct connection allows the PG board to respond to changes in the position of the stator core more quickly and feed back this change to the motor control system in real time, which helps to improve the response speed of the motor control system, allowing the motor to adapt to load changes more quickly and improve the dynamic performance of the overall system. At the same time, it can also simplify the internal structure of the motor and reduce the number of connectors and intermediate components. The amount of the stator core is reduced, the complexity and manufacturing cost of the motor are reduced, the integrity of the stator winding is higher, the safety and reliability of the motor are improved, and the risk of failure caused by poor connection or loose connectors is reduced. At the same time, it can also simplify the maintenance process and ensure stable operation in high-frequency or strong electromagnetic field environments, thereby improving the overall performance and service life of the motor. The smart chip can detect the position of the stator core with high precision. By obtaining the stator core position information in real time, it can ensure that the motor can maintain the best operating state under different working conditions, which helps to improve the response speed and accuracy of the motor control system, improve the operating efficiency of the overall system, and realize the automatic detection connection of the power line, thereby improving the accuracy and safety of operation; 2. The present application arranges the winding coils in layers, and the multi-layer winding design allows more conductors to be embedded in limited winding slots, thereby improving space utilization, and can also optimize magnetic field distribution, reduce harmonic components, improve the electromagnetic performance of the motor, reduce electromagnetic interference generated by the motor during operation, and improve electromagnetic compatibility. Furthermore, the layer-by-layer reduction can enable the winding coils to maintain a good heat dissipation effect and ensure the stability of the motor during long-term operation; 3. The present application provides reinforcing ribs to reinforce the stator core, thereby increasing the mechanical strength of the stator core, allowing the stator core to withstand greater electromagnetic force and mechanical stress, thereby improving the stability and reliability of the motor operation. At the same time, the reinforcing ribs can also increase the heat dissipation area, which is beneficial to the heat dissipation on the stator core, reducing the temperature of the stator core, and extending the overall service life of the stator winding. Furthermore, the reinforcing ribs can increase the stiffness of the stator core, reduce the noise and wear caused by vibration during the operation of the motor, thereby improving the operation quality of the motor. The reinforcing ribs provide good support and fixing for the stator core, and can prevent the stator winding from loosening or deforming during the operation of the motor, thereby ensuring the performance and stability of the motor. The design of the reinforcing ribs can improve the magnetic field distribution around the stator core, reduce magnetic field distortion and magnetic leakage, and improve the electromagnetic conversion efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the overall structure of the semicircular outer wound AC electronic stator winding of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the PG board of an embodiment of the present application.

[0025] Explanation of the accompanying drawings: 1. stator core; 11. winding slot; 12. winding coil; 13. connection hole; 14. reinforcement edge; 15. adaptive pin; 16. insulation packaging material; 17. cooling part; 2. PG board; 21. wire outlet hole; 22. power line; 23. control line. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] The present application embodiment discloses a semicircular outer-wound AC electronic stator winding. Figure 1 A semicircular outer-wound AC electronic stator winding includes a stator core 1, a winding coil 12 and a PG board 2, wherein the rap group coil and the PG board 2 are both connected to the stator core 1.

[0028] Reference Figure 1 and Figure 2 A plurality of winding slots 11 are evenly arranged on the stator core 1 along the circumferential direction, and the winding coils 12 are wound on the winding slots 11. The winding coils 12 are wound from the inside to the outside along the axis of the stator core 1. A PG board 2 is also connected to the stator core 1. The PG board 2 is coaxially arranged with the stator core 1, and the PG board 2 has the same diameter as the stator core 1.

[0029] Directly connecting the PG board 2 to the stator core 1 can more accurately sense the position information of the stator core 1. Since the intermediate transmission links are reduced, the transmission path of the position signal is shorter, and the signal attenuation and interference are less, thereby improving the accuracy of position detection. Furthermore, the direct connection allows the PG board 2 to respond to changes in the position of the stator core 1 more quickly, and to feed back this change to the motor control system in real time, which helps to improve the response speed of the motor control system, allowing the motor to adapt to load changes more quickly and improve the dynamic performance of the overall system. At the same time, it can also simplify the internal structure of the motor, reduce the number of connectors and intermediate components, reduce the complexity and manufacturing cost of the motor, make the overall integrity of the stator winding higher, improve the safety and reliability of the motor, thereby reducing the risk of failure caused by poor connection or loose connectors, and simplify the maintenance process to ensure stable operation in high-frequency or strong electromagnetic field environments, thereby improving the overall performance and service life of the motor.

[0030] A plurality of connection holes 13 are provided on the peripheral wall of the stator core 1 , and an adaptive pin 15 is provided in the connection hole 13 . One end of the adaptive pin 15 is located in the connection hole 13 , and the other end of the adaptive pin 15 extends to the outside of the stator core 1 , and the end of the adaptive pin 15 is connected to the PG board 2 .

[0031] The adaptive pin 15 can be used to optimize the connection and layout of the winding coil 12, and improve the electromagnetic performance and thermal performance of the winding coil 12. This design may help reduce the resistance and inductance of the winding coil 12, reduce losses, and improve current distribution, thereby improving the efficiency and power factor of the motor. The adaptive pin 15 can be fine-tuned according to the actual situation of the stator core 1 to ensure accurate docking with the PG board 2, thereby improving the accuracy and stability of the connection, and at the same time making the installation process of the adaptive pin 15 simpler. The operator can achieve the connection between the adaptive pin 15 and the PG board 2 without complex adjustments, reducing the difficulty and time cost of installation. The uniform arrangement of the adaptive pin 15 helps to improve the heat dissipation conditions of the stator winding. The gaps between the adaptive pins 15 can promote air circulation, which is conducive to heat dissipation, thereby reducing the temperature of the motor during operation and extending the life of the motor. Furthermore, the direct connection of the adaptive pin 15 with the PG board 2 helps to reduce interference and attenuation during signal transmission, improve the transmission quality of electromagnetic signals, and help to improve the electromagnetic performance of the motor, so that it can maintain a stable operating state under different working conditions.

[0032] A reinforcing rib 14 is provided on the side wall of the stator core 1 away from the winding slot 11 . The reinforcing rib 14 is arranged along the axial direction of the stator core 1 . A plurality of reinforcing ribs 14 are evenly arranged along the circumferential direction of the stator core 1 .

[0033] The reinforcing ribs 14 reinforce the stator core 1, which can increase the mechanical strength of the stator core 1, so that the stator core 1 can withstand greater electromagnetic force and mechanical stress, thereby improving the stability and reliability of the motor operation. At the same time, the reinforcing ribs 14 can also increase the heat dissipation area, which is beneficial to the heat dissipation on the stator core 1, reducing the temperature of the stator core 1, and extending the overall service life of the stator winding. Furthermore, the reinforcing ribs 14 can increase the stiffness of the stator core 1, reduce the noise and wear generated by vibration during the operation of the motor, thereby improving the operation quality of the motor. The reinforcing ribs 14 provide good support and fixing for the stator core 1, and can prevent the stator winding from loosening or deforming during the operation of the motor, thereby ensuring the performance and stability of the motor. The design of the reinforcing ribs 14 can improve the magnetic field distribution around the stator core 1, reduce magnetic field distortion and magnetic leakage, and improve the electromagnetic conversion efficiency of the motor.

[0034] The PG board 2 is provided with an integrated intelligent chip.

[0035] The smart chip can detect the position of the stator core 1 with high precision. By acquiring the position information of the stator core 1 in real time, it can ensure that the motor can maintain the best operating state under different working conditions, which helps to improve the response speed and accuracy of the motor control system, improve the operating efficiency of the overall system, and realize automatic detection and connection of the power cord 22, thereby improving the accuracy and safety of operation.

[0036] A plurality of wire outlet holes 21 are provided on the side wall of the PG board. The wire outlet holes 21 are provided at the edge of the PG board 2 . A power line 22 and a control line 23 are passed through the wire outlet holes 21 .

[0037] It can make the connection line between the stator winding and the PG board 2 more concise and clear. It reduces the occurrence of line crossing and entanglement, which is conducive to reducing the difficulty and cost of wiring. The outlet hole 21 is set at the edge of the PG board 2, which can effectively utilize the space inside the motor, avoid interference with other parts of the motor, and ensure the compactness and rationality of the motor structure. At the same time, it is conducive to the heat dissipation inside the motor. The heat can be dissipated by natural convection along the edge of the PG board 2, reducing the temperature rise of the motor. Furthermore, the outlet hole 21 is set at the edge of the PG board 2, which can also reduce the bending and pulling of the signal line inside the motor, reduce signal attenuation and interference, improve the accuracy and stability of position detection, and make the installation and replacement of the PG board 2 more convenient and quick, and also facilitate subsequent maintenance and repair work.

[0038] The winding coils 12 are provided in multiple groups, and the multiple groups of winding coils 12 are wound in layers, and each layer of the winding coils 12 is gradually reduced.

[0039] The multi-layer winding design allows more conductors to be embedded in the limited winding slot 11, thereby improving space utilization, and can also optimize the magnetic field distribution, reduce harmonic components, improve the electromagnetic performance of the motor, reduce the electromagnetic interference generated by the motor during operation, and improve electromagnetic compatibility. Furthermore, the layer-by-layer reduction can enable the winding coil 12 to maintain a good heat dissipation effect and ensure the stability of the motor during long-term operation.

[0040] The winding coil 12 is wrapped with an insulating packaging material 16 , and the insulating packaging material 16 is wrapped around the winding coil 12 along the circumference of the stator core 1 . In this embodiment, the insulating packaging material 16 can be set to 3M Rama insulating tape.

[0041] The insulating packaging material 16 can effectively isolate the stator winding from other metal parts of the motor, preventing current from directly passing through these parts and causing short circuit or leakage. At the same time, it can also optimize the electromagnetic field distribution of the motor, reduce eddy current and magnetic tape loss, thereby improving the efficiency and performance of the motor. Furthermore, the insulating packaging material 16 can also provide mechanical protection for the winding coil 12, preventing the winding coil 12 from being damaged by external factors such as vibration and friction during the operation of the motor. At the same time, the insulating packaging material 16 can also resist erosion by environmental factors such as oil, water, and dust, thereby extending the service life of the winding coil 12.

[0042] A cooling member 17 is arranged between the adaptive pin 15 and the insulating packaging material 16. The cooling member 17 is evenly arranged in a circle along the inner wall of the stator core 1. The cooling member 17 is arranged in the winding groove 11 corresponding to the winding coil 12, which can effectively cool the stator core 1 and the winding coil 12, and at the same time can effectively reduce the temperature of the hollow part in the middle of the stator core 1, and effectively reduce the temperature of the motor when it is running.

[0043] The implementation principle of a semicircular outer-wound AC electronic stator winding in an embodiment of the present application is as follows: the winding coil 12 is evenly wound in layers on the winding slot 11, and the PG board 2 is directly connected to the stator core 1 through the adaptive pin 15, thereby improving the integrity of the stator winding and being able to more accurately sense the position information of the stator core 1. Since the intermediate transmission links are reduced, the transmission path of the position signal is shorter, and the signal attenuation and interference are less, thereby improving the accuracy of position detection and thus improving the overall performance of the motor.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A semicircular outer wound AC electronic stator winding, comprising a stator core (1), characterized in that: A plurality of winding slots (11) are evenly arranged on the stator core (1) along the circumferential direction, the winding slots (11) are arranged toward the center of the stator core (1), winding coils (12) are evenly wound on the winding slots (11), the winding coils (12) are wound from the inside to the outside along the axis of the stator core (1), and a PG plate (2) is also connected to the stator core (1), the PG plate (2) is coaxially arranged with the stator core (1), and the PG plate (2) and the stator core (1) have the same diameter.

2. A semicircular outer-wound AC electronic stator winding according to claim 1, characterized in that: A plurality of connection holes (13) are provided on the peripheral wall of the stator core (1), and an adaptive pin (15) is provided in the connection hole (13), one end of the adaptive pin (15) is located in the connection hole (13), the other end of the adaptive pin (15) extends to the outside of the stator core (1), and the end of the adaptive pin (15) is connected to the PG board (2).

3. A semicircular outer-wound AC electronic stator winding according to claim 2, characterized in that: The winding coil (12) is wrapped with an insulating packaging material (16), and the insulating packaging material (16) is wrapped on the winding coil (12) along the circumferential direction of the stator core (1).

4. A semicircular outer-wound AC electronic stator winding according to claim 3, characterized in that: A cooling member (17) is provided between the adaptive pin (15) and the insulating packaging material (16); the cooling member (17) is evenly provided along the inner wall of the stator core (1) in a circle; and the cooling member (17) is provided in the winding slot (11) corresponding to the winding coil (12).

5. A semicircular outer-wound AC electronic stator winding according to claim 1, characterized in that: The PG board (2) is provided with an integrated intelligent chip.

6. A semicircular outer-wound AC electronic stator winding according to claim 1, characterized in that: The winding coils (12) are provided in multiple groups, and the multiple groups of the winding coils (12) are all wound in layers, and each layer of the winding coils (12) is gradually reduced.

7. A semicircular outer-wound AC electronic stator winding according to claim 1, characterized in that: A reinforcing rib (14) is provided on a side wall of the stator core (1) away from the winding slot (11); the reinforcing rib (14) is arranged along the axial direction of the stator core (1); and a plurality of the reinforcing ribs (14) are evenly arranged along the circumference of the stator core (1).

8. The semicircular outer-wound AC electronic stator winding according to claim 1, characterized in that: A wire outlet hole (21) is provided on the side wall of the PG board. A plurality of wire outlet holes (21) are provided. The wire outlet holes (21) are provided at the edge of the PG board (2). A power line (22) and a control line (23) are passed through the wire outlet holes (21).

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